Air conditioner and control method thereof

Abstract

The application provides an air conditioner and a control method thereof. The air conditioner comprises an electric heating device, an electric heating driving device, a detection module and a control module. The detection module is used for detecting parameters of at least two positions around the electric heating device. The application drives the electric heating device to rotate in a rotating range thereof through the electric heating driving device, and obtains the parameters detected by the detection module. For each angle Wj of the electric heating device, the parameters detected by the detection module can form several temperatures around the electric heating device. The maximum value Tmaxj and the minimum value Tminj of the several temperatures are determined. The difference between the maximum value Tmaxj and the minimum value Tminj is calculated. The temperature field distribution around the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is most uniform, which is used as the anti-condensation angle of the electric heating device, and the generation of condensation can be reduced as much as possible. The application can avoid or reduce the problem of condensation of the electric heating device during the operation of the air conditioner in the refrigeration or dehumidification process.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning devices, and in particular to an air conditioner and a control method thereof. Background Art

[0002] Existing air conditioner indoor units generally have auxiliary heating function, that is, an electric heating device is set in the air conditioner indoor unit to assist heating and enhance the heating effect of the air conditioner.

[0003] Electric heaters are typically installed near the indoor unit's evaporator. For example, the electric heater in a wall-mounted air conditioner's indoor unit is typically installed between the evaporator and the cross-flow fan. When the air conditioner is operating in cooling mode, indoor air passes through the unit's air inlet, undergoes heat exchange in the evaporator, and becomes cold air. Some of this cold air then passes through the electric heater and is blown out the air outlet by the cross-flow fan. Therefore, the temperature of the electric heater drops rapidly during cooling mode. Simultaneously, the cooling process causes a significant amount of condensation to form on the evaporator fins. When the air conditioner stops cooling, the humidity inside the air duct is high, as measured in actual testing. Consequently, condensation forms on the surface of the electric heater after the air conditioner is shut down. Frequent cooling during summer operation can lead to an increase in condensation on the electric heater. At high air speeds, this condensation can be blown directly off the heater and drip into the room, impacting the user experience. Furthermore, the presence of condensation on the heater over time poses a safety hazard and can cause oxidation and corrosion of the heater's metal components, shortening its service life. It can also easily cause the electric heating device to be in a humid state for a long time, causing mildew, and causing the air blown out by the air conditioner to have a musty smell.

[0004] In addition, according to actual experimental verification, when the air conditioner is in cooling operation, due to the uneven temperature field around the electric heating device and the high internal humidity, the electric heating device will continuously produce condensation water during the operation of the air conditioner, which will drip directly after accumulating for a period of time.

[0005] In response to the above technical problems, the existing solutions are:

[0006] 1. Shortly after the air conditioner stops cooling, it switches to air supply mode to increase the temperature of the electric heating device and reduce the possibility of condensation on the electric heating device. However, the temperature increase of the electric heating device is limited and cannot completely avoid the problem of condensation on the electric heating device.

[0007] 2. When the air conditioner is in cooling mode, shut it down using the remote control / voice control / app. The air conditioner's internal and external fans and compressor will shut down according to the program. After the indoor unit's air deflector is closed, the internal fan will operate at a set low speed. At the same time, the electric heater will be turned on briefly to increase the temperature and evaporate the condensate on the heater. After the cooling mode is completed, the electric heater will turn on again to evaporate the condensate. However, this cannot prevent the accumulation of excessive condensate and dripping during long-term cooling mode.

[0008] The above information disclosed in this background technology is only used to increase the understanding of the background technology of this application. Therefore, it may contain information that does not constitute the prior art known to ordinary technicians in this field. Summary of the Invention

[0009] The object of the present invention is to provide an air conditioner and a control method thereof, which solves the technical problem that when the existing air conditioner is in cooling or dehumidifying operation, the temperature around the electric heating device is different, thereby generating condensed water on the electric heating device.

[0010] The present invention provides an air conditioner and a control method thereof:

[0011] An air conditioner, comprising:

[0012] Electric heating device;

[0013] An electric heating drive device, used to drive the electric heating device to rotate;

[0014] a detection module, configured to detect parameters of at least two positions around the electric heating device, wherein the at least two positions are in different planes from a plane formed by a rotation axis of the electric heating device;

[0015] a control module for detecting condensation conditions when the air conditioner is in cooling or dehumidifying operation; and for obtaining parameters detected by the detection module when the electric heating drive device drives the electric heating device to rotate within its rotation range;

[0016] Used to enter the condensation condition judgment after the condensation condition detection is completed: used to determine the maximum value Tmaxj and the minimum value Tminj of the parameters detected by the detection module corresponding to the angles Wj of several of the electric heating devices, used to calculate the difference between the maximum value Tmaxj and the minimum value Tminj, used to determine that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is the anti-condensation angle, and control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation angle.

[0017] In the air conditioner as described above, the detection module includes at least two temperature sensors arranged around the electric heating device, and the plane formed by the at least two temperature sensors and the rotation axis of the electric heating device is different from the plane;

[0018] a control module for detecting condensation conditions when the air conditioner is in cooling or dehumidification operation; and for controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range to obtain the temperature detected by the temperature sensor;

[0019] Used to enter the condensation condition judgment after the condensation condition detection is completed: used to determine the maximum temperature Tmaxj and the minimum temperature Tminj of the temperatures detected by the temperature sensor corresponding to the angles Wj of the electric heating devices, used to calculate the difference between the maximum temperature Tmaxj and the minimum temperature Tminj, used to determine that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj is the anti-condensation angle, and control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation angle.

[0020] In the air conditioner as described above, the detection module includes a humidity sensor and at least two temperature sensors arranged around the electric heating device, and the plane formed by the at least two temperature sensors and the rotation axis of the electric heating device is different from the plane;

[0021] A control module is configured to detect condensation conditions when the air conditioner is in cooling or dehumidification operation, to obtain the humidity S detected by the humidity sensor, and to control the electric heating drive device to drive the electric heating device to rotate within its rotation range to obtain the temperature detected by the temperature sensor;

[0022] Used to enter the condensation condition judgment after the condensation condition detection is completed: used to determine the maximum temperature Tmaxj and the minimum temperature Tminj of the temperatures detected by the temperature sensor corresponding to the angles Wj of the several electric heating devices, and determine the dew point temperature Kj according to the maximum temperature Tmaxj and the humidity S; used to determine the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| as the anti-condensation angle, and control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation angle.

[0023] In the air conditioner as described above, the control module is used to determine whether the operating parameters of the air conditioner have changed when the electric heating device is located at the anti-condensation angle, and is used to perform condensation condition detection after running the air conditioner for a set time according to the changed operating parameters when the operating parameters of the air conditioner have changed.

[0024] In the air conditioner as described above, the control module is used to control the electric heating driving device to drive the electric heating device to rotate within a rotation range from an initial angle to (180 degrees - the initial angle) during condensation condition detection.

[0025] A control method for an air conditioner, the air conditioner comprising an electric heating device, an electric heating drive device, and a detection module; the electric heating drive device is used to drive the electric heating device to rotate; the detection module is located around the electric heating device and is used to detect parameters of at least two positions around the electric heating device, where the plane formed by the at least two positions and the rotation axis of the electric heating device is different from the plane; the control method is as follows:

[0026] The air conditioner operates in cooling or dehumidifying mode;

[0027] Condensation condition detection step: controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range, and obtaining parameters detected by the detection module;

[0028] Condensation condition judgment step: determine the maximum value Tmaxj and minimum value Tminj of the parameters detected by the detection module corresponding to the angles Wj of several of the electric heating devices, calculate the difference between the maximum value Tmaxj and the minimum value Tminj, determine that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is the anti-condensation angle, and the electric heating drive device drives the electric heating device to rotate to the anti-condensation angle.

[0029] In the control method for the air conditioner as described above, the detection module includes at least two temperature sensors arranged around the electric heating device, and the plane formed by the at least two temperature sensors and the rotation axis of the electric heating device is different from the plane; the control method is:

[0030] When the air conditioner is in cooling or dehumidifying operation;

[0031] Condensation condition detection step: controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range, and obtaining the temperature detected by the temperature sensor;

[0032] Condensation condition judgment step: determine the maximum temperature Tmaxj and the minimum temperature Tminj of the temperatures detected by the temperature sensor corresponding to the angles Wj of the electric heating devices, calculate the difference between the maximum temperature Tmaxj and the minimum temperature Tminj, determine that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj is the anti-condensation angle, and the electric heating drive device drives the electric heating device to rotate to the anti-condensation angle.

[0033] In the control method for the air conditioner as described above, the detection module includes a humidity sensor and at least two temperature sensors arranged around the electric heating device, and the plane formed by the at least two temperature sensors and the rotation axis of the electric heating device is different from the plane; the control method is as follows:

[0034] When the air conditioner is in cooling or dehumidifying operation;

[0035] Condensation condition detection step: obtaining the humidity S detected by the humidity sensor; controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range, and obtaining the temperature detected by the temperature sensor;

[0036] Condensation condition judgment steps: determine the maximum temperature Tmaxj and the minimum temperature Tminj of the temperature detected by the temperature sensor corresponding to the angles Wj of the electric heating devices, and determine the dew point temperature Kj based on the maximum temperature Tmaxj and the humidity S; determine the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| as the anti-condensation angle, and the electric heating drive device drives the electric heating device to rotate to the anti-condensation angle.

[0037] According to the control method of the air conditioner as described above, when the electric heating device is located at the anti-condensation angle, it is determined whether the operating parameters of the air conditioner have changed. When the operating parameters of the air conditioner have changed, the air conditioner is operated for a set time according to the changed operating parameters before entering the condensation condition detection step.

[0038] According to the control method of the air conditioner as described above, in the condensation condition detection step, the electric heating driving device is controlled to drive the electric heating device to rotate within a rotation range from an initial angle to (180 degrees - the initial angle).

[0039] Compared with the prior art, the advantages and positive effects of the present invention are as follows: the air conditioner of the present invention includes an electric heating device, an electric heating drive device, a detection module and a control module, the electric heating drive device is used to drive the electric heating device to rotate; the detection module is used to detect parameters of at least two positions around the electric heating device, and the planes formed by the at least two positions and the rotation axis of the electric heating device are different planes; the control module is used to perform condensation condition detection when the air conditioner is in cooling or dehumidification operation: it is used to control the electric heating drive device to drive the electric heating device to rotate within its rotation range, and obtain the parameters detected by the detection module; it is used to enter the condensation condition judgment after the condensation condition detection is completed: it is used to determine the maximum value Tmaxj and minimum value Tminj of the parameters detected by the detection module corresponding to the angles Wj of several electric heating devices, it is used to calculate the difference between the maximum value Tmaxj and the minimum value Tminj, it is used to determine the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj as the anti-condensation angle, and control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation angle. The air conditioner of the present invention first drives the electric heating device to rotate within its rotation range via an electric heating drive device and obtains parameters detected by a detection module. For each electric heating device angle Wj, the parameters detected by the detection module are capable of forming a plurality of surrounding temperatures. The maximum value Tmaxj and minimum value Tminj of the plurality of temperatures are determined, and the difference between the maximum value Tmaxj and the minimum value Tminj is calculated. The minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj corresponds to the most uniform temperature field distribution around the electric heating device angle Wj. This serves as the anti-condensation angle of the electric heating device, thereby minimizing condensation. The present invention can avoid or reduce the problem of condensation occurring on the electric heating device during cooling or dehumidification operation of the air conditioner. The present invention controls the rotation of the electric heating device and controls the detection module to detect parameters. The anti-condensation angle is directly determined based on the rotation angle of the electric heating device and the detected parameters, eliminating the need to rotate the electric heating device sequentially by set angles to test the anti-condensation angle, thereby achieving high anti-condensation efficiency.

[0040] The control method of the air conditioner of the present invention is as follows: when the air conditioner is in cooling or dehumidifying operation; a condensation condition detection step: when controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range, obtaining parameters detected by the detection module; a condensation condition judgment step: determining the maximum value Tmaxj and minimum value Tminj of the parameters detected by the detection module corresponding to the angles Wj of several electric heating devices, calculating the difference between the maximum value Tmaxj and the minimum value Tminj, determining the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj as the anti-condensation angle, and the electric heating drive device driving the electric heating device to rotate to the anti-condensation angle. The air conditioner of the present invention first drives the electric heating device to rotate within its rotation range via an electric heating drive device and obtains parameters detected by a detection module. For each electric heating device angle Wj, the parameters detected by the detection module are capable of forming a plurality of surrounding temperatures. The maximum value Tmaxj and minimum value Tminj of the plurality of temperatures are determined, and the difference between the maximum value Tmaxj and the minimum value Tminj is calculated. The minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj corresponds to the most uniform temperature field distribution around the electric heating device angle Wj. This serves as the anti-condensation angle of the electric heating device, thereby minimizing condensation. The present invention can avoid or reduce the problem of condensation occurring on the electric heating device during cooling or dehumidification operation of the air conditioner. The present invention controls the rotation of the electric heating device and controls the detection module to detect parameters. The anti-condensation angle is directly determined based on the rotation angle of the electric heating device and the detected parameters, eliminating the need to rotate the electric heating device sequentially by set angles to test the anti-condensation angle, thereby achieving high anti-condensation efficiency.

[0041] Other features and advantages of the present invention will become more apparent after reading the detailed description of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of an air conditioner indoor unit according to a specific embodiment of the present invention.

[0043] Figure 2 It is a schematic diagram of an electric heating device according to a specific embodiment of the present invention.

[0044] Figure 3 It is a schematic diagram of an electric heating device and a detection module according to a specific embodiment of the present invention.

[0045] Figure 4 yes Figure 3 side view.

[0046] Figure 5 It is a flow chart of a specific embodiment 1 of the present invention.

[0047] Figure 6 It is a flow chart of the second specific embodiment of the present invention.

[0048] Figure 7It is a flow chart of specific embodiment 3 of the present invention.

[0049] In the figure,

[0050] 1. Evaporator;

[0051] 2. Electric heating device;

[0052] 3. Cross-flow fan;

[0053] 4. Detection module;

[0054] 5. Electric heating drive device. DETAILED DESCRIPTION

[0055] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0056] It should be noted that in the description of the present invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or element described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0057] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0058] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0059] like Figure 1-4 As shown, the air conditioner includes an evaporator 1, an electric heating device 2 and a cross-flow fan 3 which are arranged in sequence in the air flow direction within a housing.

[0060] exist Figure 1As shown, when the air conditioner is operating in cooling or dehumidification mode, the temperatures above, below, left, and right of the electric heater 2 are inconsistent. If the temperatures detected in two areas around the electric heater are below the dew point of the higher temperature area, condensation will form between the two temperature areas, forming on the electric heater. Condensation continuously forms on the electric heater during air conditioning operation. After accumulating for a period of time, it will drip directly and be blown out by the cross-flow fan.

[0061] When the air conditioner is running, different operating conditions, such as wind speed, air guide plate position, and compressor operating frequency (determined by the ambient temperature and the user-set temperature), result in inconsistent temperature distribution around the electric heating device when the electric heating device is at the same angle.

[0062] When the air conditioner is operating in cooling or dehumidification mode, the angle of the electric heater is crucial for ensuring uniform temperature distribution around the heater. If the heater is positioned at an angle that creates an uneven temperature distribution around it, condensation is likely to form on the heater. However, if the heater is positioned at an angle that creates a uniform temperature distribution around it, condensation can be avoided or minimized. Therefore, the present invention aims to determine the anti-condensation position of the heater so that its surrounding parameters do not meet condensation conditions.

[0063] The air conditioner includes an electric heating device 2 and an electric heating driving device 5 . The electric heating driving device 5 is used to drive the electric heating device 2 to rotate so as to adjust the angle of the electric heating device 2 .

[0064] The electric heating device 2 of the air conditioner is driven to rotate by an electric heating drive device 5. The electric heating device 2 is generally rotatably mounted on a mounting bracket or a tube sheet of the evaporator 1. The electric heating drive device 5 includes a drive motor, such as a stepper motor, which drives the electric heating device 2 to rotate. The drive motor can directly drive the electric heating device 2 or drive the electric heating device 2 through gears.

[0065] The electric heating drive 5 generally drives the electric heating device 2 to rotate alternately in the forward and reverse directions within its rotation range. That is, the electric heating drive 5 drives the electric heating device 2 to rotate forward from the initial angle to the final angle, which is one rotation of the electric heating device within its rotation range. The electric heating drive 5 drives the electric heating device 2 to rotate reversely from the final angle to the initial angle, which is one rotation of the electric heating device within its rotation range. This method can prevent the electric heating wires from getting tangled.

[0066] The air conditioner includes a detection module 4 , and the detection module 4 is arranged around the electric heating device 2 .

[0067] The detection module 4 is at a certain distance from the electric heating device 2 and is used to detect parameters around the electric heating device 2 .

[0068] The detection module 4 can be fixed inside the housing of the air conditioner, or can be fixed on the electric heating device 2 and rotate synchronously with the electric heating device 2 .

[0069] The detection module 4 is used to detect parameters at at least two locations around the electric heating device 2, where the at least two locations are located in different planes from the plane formed by the rotation axis of the electric heating device 2. When the detection module is used to detect parameters at two locations around the electric heating device 2, the two locations are preferably symmetrical about the rotation axis.

[0070] Of course, the more positions the detection module 4 detects, the more accurately the temperature field conditions around the electric heating device 2 can be reflected.

[0071] The following is described by specific examples:

[0072] Example 1

[0073] The air conditioner includes: an electric heating device, an electric heating driving device, a detection module and a control module.

[0074] The electric heating drive device is used to drive the electric heating device to rotate.

[0075] The detection module is located around the electric heating device and is used to detect parameters of at least two positions around the electric heating device, and the planes formed by the at least two positions and the rotation axis of the electric heating device are different planes.

[0076] The control module is used to detect condensation conditions when the air conditioner is in cooling or dehumidification operation; it is used to control the electric heating drive device to drive the electric heating device to rotate within its rotation range and obtain the parameters detected by the detection module.

[0077] In some embodiments, the electric heating driving device drives the electric heating device to rotate uniformly at a set speed V within its rotation range, and the detection module detects parameters in real time.

[0078] Select the parameters detected by the detection module corresponding to the electric heating module at several angles Wj.

[0079] like Figure 1 、 4 As shown, this embodiment takes the detection module detecting parameters of four positions as an example, and selects 12 electric heating module angles as an example for explanation:

[0080] When the electric heating device is at angle W1, the parameters detected by the detection module are (T11, T12, T13, T14);

[0081] When the electric heating device is at angle W2, the parameters detected by the detection module are (T21, T22, T23, T24);

[0082] …

[0083] When the electric heating device is at angle Wj, the parameters detected by the detection module are (Tj1, Tj2, Tj3, Tj4);

[0084] …

[0085] When the electric heating device is at angle W12, the parameters detected by the detection module are (T121, T122, T123, T124).

[0086] Of course, the more electric heating angles are selected, the more accurately the anti-condensation angle is determined, but the calculation becomes more complicated.

[0087] In some embodiments, the rotational angle range of the electric heating device is divided into n angles, each of which is sized D. At each angle, the detection module detects parameters. The electric heating drive device then drives the electric heating device to rotate uniformly at a set speed V within its rotational range, or briefly pauses at each angle.

[0088] like Figure 1 、 4 As shown, this embodiment takes the detection module detecting parameters of four positions as an example, and takes the rotation angle of the electric heating device divided into 12 as an example for explanation:

[0089] When the electric heating device is at angle W1, the parameters detected by the detection module are (T11, T12, T13, T14);

[0090] When the electric heating device is at angle W2, the parameters detected by the detection module are (T21, T22, T23, T24);

[0091] …

[0092] When the electric heating device is at angle Wj, the parameters detected by the detection module are (Tj1, Tj2, Tj3, Tj4);

[0093] …

[0094] When the electric heating device is at angle W12, the parameters detected by the detection module are (T121, T122, T123, T124).

[0095] Of course, the more the electric heating angle is divided, the more accurately the anti-condensation angle is determined; however, the calculation becomes more complicated.

[0096] The control module is used to enter the condensation condition judgment after the condensation condition detection is completed: it is used to determine the maximum value Tmaxj and the minimum value Tminj of the parameters detected by the detection module corresponding to the angles Wj of several electric heating devices, and is used to calculate the difference between the maximum value Tmaxj and the minimum value Tminj, and is used to determine that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is the anti-condensation angle, and control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation angle.

[0097] The control module is used to control the electric heating drive device to drive the electric heating device to rotate within the range of the initial angle to (180 degrees - initial angle) during the condensation condition detection, and obtain the parameters detected by the detection module. Figure 4 As shown, the angles W1-W6 of the electric heating device within the rotation range of 0 degrees to 180 degrees are exactly the same as the angles W7-W12 of the electric heating device within the rotation range of 180 degrees to 360 degrees. There is no need to repeat the calculation. Therefore, it is only necessary to control the electric heating device to rotate within the rotation range of 0 degrees to 180 degrees and obtain the parameters detected by the detection module, which can reduce the calculation amount of the control module.

[0098] The control module is used to determine whether the operating parameters of the air conditioner have changed when the electric heating device is at the anti-condensation angle. When the operating parameters of the air conditioner have changed, the control module is used to run the air conditioner for a set time according to the changed operating parameters before performing condensation condition detection.

[0099] Among them, the operating parameters of the air conditioner include wind speed, air guide plate position, compressor operating frequency (related to user-set temperature and ambient temperature), etc.

[0100] Since the operating parameters of the air conditioner change, the parameters around the electric heating device change after the air conditioner is operated according to the changed operating parameters. In order to avoid condensation, after entering the condensation condition detection step, the anti-condensation angle of the electric heating device is re-determined to ensure that the electric heating device is always at an anti-condensation angle with a uniform temperature field.

[0101] This embodiment first detects condensation conditions during cooling or dehumidification. The electric heating drive device is controlled to rotate the electric heating device within its rotation range. Parameters detected by the detection module are then acquired, and the corresponding detection parameters for several angles Wj of the electric heating device are determined. The temperature field distribution around the electric heating device at these angles is obtained, providing a comprehensive understanding of the temperature field distribution around the electric heating device at these angles, which helps determine the optimal anti-condensation angle. After completing the condensation condition detection, the control module then determines the condensation condition by determining the maximum value Tmaxj and minimum value Tminj of the parameters detected by the detection module corresponding to the angles Wj of the electric heaters. This value is used to calculate the difference between the maximum value Tmaxj and the minimum value Tminj. The difference between the maximum value Tmaxj and the minimum value Tminj reflects whether the temperature field distribution around the electric heater is uniform. The smaller the difference, the more uniform the temperature field distribution and the lower the risk of condensation on the electric heater. Therefore, the angle Wj of the electric heater corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is determined as the anti-condensation angle, and the electric heater drive device is controlled to rotate the electric heater to the anti-condensation angle. The anti-condensation angle determined in this embodiment can ensure a uniform temperature field distribution around the electric heater, thereby preventing or reducing condensation on the electric heater.

[0102] The control method of the air conditioner is:

[0103] The air conditioner is running in cooling or dehumidification mode;

[0104] Condensation condition detection step: controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range, and obtaining parameters detected by the detection module;

[0105] Condensation condition judgment steps: determine the maximum value Tmaxj and minimum value Tminj of the parameters detected by the detection module corresponding to the angles Wj of several electric heating devices, calculate the difference between the maximum value Tmaxj and the minimum value Tminj, determine that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is the anti-condensation angle, and the electric heating drive device drives the electric heating device to rotate to the anti-condensation angle.

[0106] When the air conditioner is in cooling or dehumidifying operation, the electric heating drive device is controlled to drive the electric heating device to rotate within its rotation range, and the parameters detected by the detection module are obtained. When the electric heating device 2 is at a specific angle, the parameters detected by the detection module 4 can reflect whether the temperature field around the electric heating device 2 is uniform at this time, and the maximum value Tmaxj and minimum value Tminj of the parameters detected by the detection module corresponding to the angles Wj of several electric heating devices are determined. When the difference between the maximum value Tmaxj and the minimum value Tminj is the smallest, it means that the temperature field around the electric heating device 2 is the most uniform. Therefore, the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is selected as the anti-condensation angle, and the electric heating device is controlled to rotate to the anti-condensation angle. This can ensure that the temperature field around the electric heating device is uniformly distributed, avoid or reduce the uneven temperature field caused by the alternating mixing of cold and hot air around the electric heating device, and avoid or reduce the generation of condensation and dripping of water by the electric heating device.

[0107] like Figure 5 As shown, the control method of the air conditioner in this embodiment is:

[0108] S1. The air conditioner is running in cooling or dehumidification mode.

[0109] S2. When controlling the electric heating driving device to drive the electric heating device to rotate within its rotation range, obtain parameters detected by the detection module.

[0110] S3. Determine the maximum value Tmaxj and the minimum value Tminj of the parameters detected by the detection modules corresponding to the angles Wj of the plurality of electric heating devices, and calculate the difference between the maximum value Tmaxj and the minimum value Tminj.

[0111] S4. Determine the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj as the anti-condensation angle.

[0112] S5. The electric heating driving device drives the electric heating device to rotate to an anti-condensation angle.

[0113] In step S5, the electric heating device is located at an anti-condensation angle, and the temperature field around the electric heating device is evenly distributed, which will not cause condensation on the electric heating device.

[0114] In some embodiments, during the condensation condition detection, the electric heating drive device is controlled to drive the electric heating device to rotate within a range from an initial angle to (180 degrees - initial angle) to obtain the temperature detected by the temperature sensor. Figure 4As shown, the angles W1-W6 of the electric heating device within the rotation range of 0 degrees to 180 degrees are exactly the same as the angles W7-W12 of the electric heating device within the rotation range of 180 degrees to 360 degrees. There is no need to repeat the calculation. Therefore, it is only necessary to control the electric heating device to rotate within the rotation range of 0 degrees to 180 degrees and obtain the parameters detected by the detection module, which can reduce the calculation amount of the control module.

[0115] In some embodiments, when the electric heating device is at an anti-condensation angle, it is determined whether the operating parameters of the air conditioner have changed. When the operating parameters of the air conditioner have changed, the air conditioner is operated for a set time according to the changed operating parameters before entering the condensation condition detection step.

[0116] Among them, the operating parameters of the air conditioner include wind speed, air guide plate position, compressor operating frequency (related to user-set temperature and ambient temperature), etc.

[0117] Since the operating parameters of the air conditioner change, the parameters around the electric heating device change after the air conditioner is operated according to the changed operating parameters. In order to avoid condensation, after entering the condensation condition detection step, the anti-condensation angle of the electric heating device is re-determined to ensure that the electric heating device is always at an anti-condensation angle with a uniform temperature field.

[0118] Example 2

[0119] In this embodiment, the detection module 4 includes temperature sensors located around the electric heating device.

[0120] Specifically, the detection module 4 includes at least two temperature sensors disposed around the electric heating device, with the at least two temperature sensors being located in different planes from the rotation axis of the electric heating device. The temperature sensors are located at a certain distance from the electric heating device and are used to measure the temperature of the air surrounding the electric heating device.

[0121] In some embodiments, the detection module 4 includes two temperature sensors located in any two spaces of the upper space, the lower space, the left space, and the right space of the electric heating device 2 .

[0122] In some embodiments, the detection module 4 includes three temperature sensors located in any three spaces of the upper space, the lower space, the left space, and the right space of the electric heating device 2 .

[0123] In some embodiments, the detection module 4 includes four temperature sensors located in the upper space, the lower space, the left space, and the right space of the electric heating device 2 .

[0124] Of course, the more temperature sensors there are, the better the anti-condensation effect.

[0125] In some embodiments, the air conditioner includes a detection module mounting bracket, and the detection module 4 is mounted on the detection module mounting bracket. The mounting bracket can be fixed in the air conditioner or fixed on the electric heating device to rotate synchronously with the electric heating device.

[0126] The control module is used to detect condensation conditions when the air conditioner is in cooling or dehumidification operation; and is used to control the electric heating drive device to drive the electric heating device to rotate within its rotation range to obtain the temperature detected by the temperature sensor.

[0127] In some embodiments, the electric heating driving device drives the electric heating device to rotate uniformly at a set speed V within its rotation range, and the temperature sensor detects the temperature in real time.

[0128] The temperatures detected by the temperature sensor corresponding to the electric heating module at several angles Wj are selected.

[0129] like Figure 1 、 4 As shown, this embodiment takes 4 temperature sensors as an example and selects 12 electric heating module angles as an example for explanation:

[0130] When the electric heating device is at angle W1, the temperatures detected by the temperature sensor are (T11, T12, T13, T14);

[0131] When the electric heating device is at angle W2, the temperatures detected by the temperature sensor are (T21, T22, T23, T24);

[0132] …

[0133] When the electric heating device is at angle Wj, the temperatures detected by the temperature sensor are (Tj1, Tj2, Tj3, Tj4);

[0134] …

[0135] When the electric heating device is at angle W12, the temperatures detected by the temperature sensor are (T121, T122, T123, T124).

[0136] Of course, the more electric heating angles are selected, the more accurately the anti-condensation angle is determined, but the calculation becomes more complicated.

[0137] In some embodiments, the rotational angle range of the electric heating device is divided into n angles, each of which is sized D. At each angle, the temperature sensor detects the temperature of the electric heating device. The electric heating drive device then drives the electric heating device to rotate uniformly at a set speed V within the rotational range, or briefly pauses at each angle.

[0138] like Figure 1 、 4As shown, this embodiment takes 4 temperature sensors as an example and the rotation angle of the electric heating device as 12 as an example for explanation:

[0139] When the electric heating device is at angle W1, the temperatures detected by the temperature sensor are (T11, T12, T13, T14);

[0140] When the electric heating device is at angle W2, the temperatures detected by the temperature sensor are (T21, T22, T23, T24);

[0141] …

[0142] When the electric heating device is at angle Wj, the temperatures detected by the temperature sensor are (Tj1, Tj2, Tj3, Tj4);

[0143] …

[0144] When the electric heating device is at angle W12, the temperatures detected by the temperature sensor are (T121, T122, T123, T124).

[0145] Of course, the more the electric heating angle is divided, the more accurately the anti-condensation angle is determined, but the calculation becomes more complicated.

[0146] Used to enter the condensation condition judgment after the condensation condition detection is completed: used to determine the maximum temperature Tmaxj and the minimum temperature Tminj of the temperatures detected by the temperature sensors corresponding to the angles Wj of several electric heating devices, used to calculate the difference between the maximum temperature Tmaxj and the minimum temperature Tminj, used to determine the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj as the anti-condensation angle, and control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation angle.

[0147] The control module is used to control the electric heating drive device to drive the electric heating device to rotate within the range of the initial angle to (180 degrees - initial angle) during the condensation condition detection, and obtain the temperature detected by the temperature sensor. Figure 4 As shown, the angles W1-W6 of the electric heating device within the rotation range of 0 degrees to 180 degrees are exactly the same as the angles W7-W12 of the electric heating device within the rotation range of 180 degrees to 360 degrees. There is no need to repeat the calculation. Therefore, it is only necessary to control the electric heating device to rotate within the rotation range of 0 degrees to 180 degrees and obtain the temperature detected by the temperature sensor, which can reduce the calculation amount of the control module.

[0148] The control module is used to determine whether the operating parameters of the air conditioner have changed when the electric heating device is at the anti-condensation angle. When the operating parameters of the air conditioner have changed, the control module is used to run the air conditioner for a set time according to the changed operating parameters before performing condensation condition detection.

[0149] Among them, the operating parameters of the air conditioner include wind speed, air guide plate position, compressor operating frequency (related to user-set temperature and ambient temperature), etc.

[0150] Since the operating parameters of the air conditioner change, the parameters around the electric heating device change after the air conditioner is operated according to the changed operating parameters. In order to avoid condensation, after entering the condensation condition detection step, the anti-condensation angle of the electric heating device is re-determined to ensure that the electric heating device is always at an anti-condensation angle with a uniform temperature field.

[0151] This embodiment first detects condensation conditions during cooling or dehumidification. The electric heating drive device is controlled to rotate the electric heating device within its rotation range, and the temperature detected by the temperature sensor is obtained. The temperature detected by the temperature sensor corresponding to several angles Wj of the electric heating device is determined. The temperature field distribution around the electric heating device at various angles is obtained, providing a comprehensive understanding of the temperature field distribution around the electric heating device at various angles, which helps determine the optimal anti-condensation angle. After completing the condensation condition detection, the control module then determines the condensation condition by determining the maximum temperature Tmaxj and minimum temperature Tminj detected by the temperature sensors corresponding to the angles Wj of the electric heaters. This is used to calculate the difference between the maximum temperature Tmaxj and the minimum temperature Tminj. The difference between the maximum temperature Tmaxj and the minimum temperature Tminj reflects whether the temperature field distribution around the electric heater is uniform. The smaller the difference, the more uniform the temperature field distribution and the lower the risk of condensation on the electric heater. Therefore, the angle Wj of the electric heater corresponding to the minimum difference between the maximum temperature Tmaxj and the minimum temperature Tminj is determined as the anti-condensation angle, and the electric heater drive device is controlled to rotate the electric heater to the anti-condensation angle. The anti-condensation angle determined in this embodiment can ensure a uniform temperature field distribution around the electric heater, thereby preventing or reducing condensation on the electric heater.

[0152] The control method of the air conditioner is:

[0153] The air conditioner is running in cooling or dehumidification mode;

[0154] Condensation condition detection step: controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range, and obtaining the temperature detected by the temperature sensor;

[0155] Condensation condition judgment steps: determine the maximum temperature Tmaxj and the minimum temperature Tminj of the temperatures detected by the temperature sensors corresponding to the angles Wj of several electric heating devices, calculate the difference between the maximum temperature Tmaxj and the minimum temperature Tminj, determine that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj is the anti-condensation angle, and the electric heating drive device drives the electric heating device to rotate to the anti-condensation angle.

[0156] When the air conditioner is in cooling or dehumidifying operation, the electric heating drive device is controlled to drive the electric heating device to rotate within its rotation range, and the temperature detected by the temperature sensor is obtained. When the electric heating device 2 is at a specific angle, the temperature detected by the temperature sensor can reflect whether the temperature field around the electric heating device 2 is uniform at this time. The maximum temperature Tmaxj and the minimum temperature Tminj of the temperatures detected by the temperature sensors corresponding to the angles Wj of several electric heating devices are determined. When the difference between the maximum temperature Tmaxj and the minimum temperature Tminj is the smallest, it means that the temperature field around the electric heating device 2 is the most uniform. Therefore, the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj is selected as the anti-condensation angle, and the electric heating device is controlled to rotate to the anti-condensation angle. This can ensure that the temperature field around the electric heating device is evenly distributed, avoid or reduce the uneven temperature field caused by the alternating mixing of cold and hot air around the electric heating device, and avoid or reduce the generation of condensation and dripping of water by the electric heating device.

[0157] like Figure 6 As shown, the control method of the air conditioner in this embodiment is:

[0158] S1. The air conditioner is running in cooling or dehumidification mode.

[0159] S2. When controlling the electric heating driving device to drive the electric heating device to rotate within its rotation range, obtain the temperature detected by the temperature sensor.

[0160] S3. Determine the maximum temperature Tmaxj and the minimum temperature Tminj of the temperatures detected by the temperature sensors corresponding to the angles Wj of the plurality of electric heating devices, and calculate the difference between the maximum temperature Tmaxj and the minimum temperature Tminj.

[0161] S4. Determine the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj as the anti-condensation angle.

[0162] S5. The electric heating driving device drives the electric heating device to rotate to an anti-condensation angle.

[0163] In step S5, the electric heating device is located at an anti-condensation angle, and the temperature field around the electric heating device is evenly distributed, which will not cause condensation on the electric heating device.

[0164] In some embodiments, during the condensation condition detection, the electric heating drive device is controlled to drive the electric heating device to rotate within a range from an initial angle to (180 degrees - initial angle) to obtain the temperature detected by the temperature sensor. Figure 4As shown, the angles W1-W6 of the electric heating device within the rotation range of 0 degrees to 180 degrees are exactly the same as the angles W7-W12 of the electric heating device within the rotation range of 180 degrees to 360 degrees. There is no need to repeat the calculation. Therefore, it is only necessary to control the electric heating device to rotate within the rotation range of 0 degrees to 180 degrees and obtain the temperature detected by the temperature sensor, which can reduce the calculation amount of the control module.

[0165] In some embodiments, when the electric heating device is at an anti-condensation angle, it is determined whether the operating parameters of the air conditioner have changed. When the operating parameters of the air conditioner have changed, the air conditioner is operated for a set time according to the changed operating parameters before entering the condensation condition detection step.

[0166] Among them, the operating parameters of the air conditioner include wind speed, air guide plate position, compressor operating frequency (related to user-set temperature and ambient temperature), etc.

[0167] Due to changes in the operating parameters of the air conditioner, the temperature around the electric heating device changes after the air conditioner is operated according to the changed operating parameters. In order to avoid condensation, after entering the condensation condition detection step, the anti-condensation angle of the electric heating device is re-determined to ensure that the electric heating device is always at an anti-condensation angle with a uniform temperature field.

[0168] Example 3

[0169] In this embodiment, the detection module 4 includes a temperature sensor and a humidity sensor located around the electric heating device.

[0170] Specifically, the detection module 4 includes a humidity sensor and at least two temperature sensors positioned around the electric heater. The at least two temperature sensors are located in different planes from the rotation axis of the electric heater. The temperature sensor is located at a distance from the electric heater and measures the air temperature surrounding the heater. The humidity sensor is located at a distance from the heater and measures the humidity surrounding the heater. Only one humidity sensor is required.

[0171] In some embodiments, the detection module 4 includes two temperature sensors located in any two spaces of the upper space, the lower space, the left space, and the right space of the electric heating device 2 .

[0172] In some embodiments, the detection module 4 includes three temperature sensors located in any three spaces of the upper space, the lower space, the left space, and the right space of the electric heating device 2 .

[0173] In some embodiments, the detection module 4 includes four temperature sensors located in the upper space, the lower space, the left space, and the right space of the electric heating device 2 .

[0174] Of course, the more temperature sensors there are, the better the anti-condensation effect.

[0175] In some embodiments, the air conditioner includes a detection module mounting bracket, the temperature sensor is mounted on the detection module mounting bracket, and the mounting bracket can be fixed in the air conditioner or fixed on the electric heating device and rotate synchronously with the electric heating device.

[0176] There is no limitation on the installation position of the humidity sensor. The humidity sensor can be fixedly installed in the air conditioner. In order to simplify the structure, the humidity sensor can also be installed on a mounting bracket.

[0177] The control module is used to detect condensation conditions when the air conditioner is in cooling or dehumidification operation: to obtain the humidity S detected by the humidity sensor; and to control the electric heating drive device to drive the electric heating device to rotate within its rotation range to obtain the temperature detected by the temperature sensor.

[0178] In some embodiments, the electric heating driving device drives the electric heating device to rotate uniformly at a set speed V within its rotation range, and the temperature sensor detects the temperature in real time.

[0179] The temperatures detected by the temperature sensor corresponding to the electric heating module at several angles Wj are selected.

[0180] like Figure 1 、 4 As shown, this embodiment takes 4 temperature sensors and 1 humidity sensor as an example, and selects 12 electric heating module angles as an example for explanation:

[0181] The humidity sensor detects the humidity S;

[0182] When the electric heating device is at angle W1, the temperatures detected by the temperature sensor are (T11, T12, T13, T14);

[0183] When the electric heating device is at angle W2, the temperatures detected by the temperature sensor are (T21, T22, T23, T24);

[0184] …

[0185] When the electric heating device is at angle Wj, the temperatures detected by the temperature sensor are (Tj1, Tj2, Tj3, Tj4);

[0186] …

[0187] When the electric heating device is at angle W12, the temperatures detected by the temperature sensor are (T121, T122, T123, T124).

[0188] Of course, the more electric heating angles are selected, the more accurately the anti-condensation angle is determined, but the calculation becomes more complicated.

[0189] In some embodiments, the rotational angle range of the electric heating device is divided into n angles, each of which is sized D. At each angle, the temperature sensor detects the temperature of the electric heating device. The electric heating drive device then drives the electric heating device to rotate uniformly at a set speed V within the rotational range, or briefly pauses at each angle.

[0190] like Figure 1 、 4 As shown, this embodiment takes the example of setting 4 temperature sensors and 1 humidity sensor, and taking the example of dividing the rotation angle of the electric heating device into 12.

[0191] The humidity sensor detects the humidity S;

[0192] When the electric heating device is at angle W1, the temperatures detected by the temperature sensor are (T11, T12, T13, T14);

[0193] When the electric heating device is at angle W2, the temperatures detected by the temperature sensor are (T21, T22, T23, T24);

[0194] …

[0195] When the electric heating device is at angle Wj, the temperatures detected by the temperature sensor are (Tj1, Tj2, Tj3, Tj4);

[0196] …

[0197] When the electric heating device is at angle W12, the temperatures detected by the temperature sensor are (T121, T122, T123, T124).

[0198] Of course, the more the electric heating angle is divided, the more accurately the anti-condensation angle is determined, but the calculation becomes more complicated.

[0199] The control module is used to enter the condensation condition judgment after the condensation condition detection is completed: it is used to determine the maximum temperature Tmaxj and the minimum temperature Tminj of the temperatures detected by the temperature sensors corresponding to the angles Wj of several electric heating devices, and determine the dew point temperature Kj based on the maximum temperature Tmaxj and the humidity S; it is used to determine the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| as the anti-condensation angle, and control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation angle.

[0200] The control module is used to control the electric heating drive device to drive the electric heating device to rotate within the range of the initial angle to (180 degrees - initial angle) during the condensation condition detection, and obtain the temperature detected by the temperature sensor. Figure 4As shown, the angles W1-W6 of the electric heating device within the rotation range of 0 degrees to 180 degrees are exactly the same as the angles W7-W12 of the electric heating device within the rotation range of 180 degrees to 360 degrees. There is no need to repeat the calculation. Therefore, it is only necessary to control the electric heating device to rotate within the rotation range of 0 degrees to 180 degrees and obtain the temperature detected by the temperature sensor, which can reduce the calculation amount of the control module.

[0201] The control module is used to determine whether the operating parameters of the air conditioner have changed when the electric heating device is at the anti-condensation angle. When the operating parameters of the air conditioner have changed, the control module is used to run the air conditioner for a set time according to the changed operating parameters before performing condensation condition detection.

[0202] Among them, the operating parameters of the air conditioner include wind speed, air guide plate position, compressor operating frequency (related to user-set temperature and ambient temperature), etc.

[0203] Since the operating parameters of the air conditioner change, the parameters around the electric heating device change after the air conditioner is operated according to the changed operating parameters. In order to avoid condensation, after entering the condensation condition detection step, the anti-condensation angle of the electric heating device is re-determined to ensure that the electric heating device is always at an anti-condensation angle with a uniform temperature field.

[0204] This embodiment first detects condensation conditions during cooling or dehumidification. The system obtains humidity S from a humidity sensor, controls the electric heating drive device to rotate the electric heating device within its rotation range, obtains the temperature detected by the temperature sensor, and determines the temperature detected by the temperature sensor at several angles Wj of the electric heating device. The temperature field distribution around the electric heating device at several angles is obtained, providing a comprehensive understanding of the temperature field distribution around the electric heating device at these angles, which helps determine the optimal anti-condensation angle. After completing the condensation condition detection, the control module then determines the condensation condition: it determines the maximum temperature Tmaxj and minimum temperature Tminj detected by the temperature sensors corresponding to the angles Wj of the electric heaters, and determines the dew point temperature Kj based on the maximum temperature Tmaxj and the humidity S. The control module then determines the electric heater angle Wj corresponding to the minimum value of |Kj - Tminj| as the anti-condensation angle. The magnitude of |Kj - Tminj| reflects the uniformity of the temperature field distribution around the electric heater. The smaller the difference, the more uniform the temperature field distribution and the lower the risk of condensation on the electric heater. Therefore, the electric heater angle Wj corresponding to the minimum value of |Kj - Tminj| is determined as the anti-condensation angle, and the electric heater drive device is controlled to rotate the electric heater to the anti-condensation angle. The anti-condensation angle determined in this embodiment can ensure a uniform temperature field distribution around the electric heater, preventing or reducing condensation on the electric heater.

[0205] The control method of the air conditioner is:

[0206] The air conditioner is running in cooling or dehumidification mode;

[0207] Condensation condition detection step: obtaining humidity S detected by the humidity sensor, controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range, and obtaining temperature detected by the temperature sensor;

[0208] Condensation condition judgment steps: determine the maximum temperature Tmaxj and minimum temperature Tminj of the temperatures detected by the temperature sensors corresponding to the angles Wj of several electric heating devices, and determine the dew point temperature Kj based on the maximum temperature Tmaxj and the humidity S; determine the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| as the anti-condensation angle, and the electric heating drive device drives the electric heating device to rotate to the anti-condensation angle.

[0209] When the air conditioner is in cooling or dehumidification operation, the humidity detected by the humidity sensor is obtained, and when the electric heating drive device is controlled to drive the electric heating device to rotate within its rotation range, the temperature detected by the temperature sensor is obtained. When the electric heating device 2 is at a specific angle, the temperature detected by the temperature sensor and the humidity detected by the humidity sensor can reflect whether the temperature field around the electric heating device 2 is uniform at this time. The maximum temperature Tmaxj and the minimum temperature Tminj of the temperatures detected by the temperature sensors corresponding to the angles Wj of the electric heating devices are determined, and the dew point temperature Kj is determined based on the maximum temperature Tmaxj and the humidity S. When it is determined that |Kj-Tminj| is minimum, it means that the temperature field around the electric heating device 2 is most uniform. Therefore, the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| is selected as the anti-condensation angle, and the electric heating device is controlled to rotate to the anti-condensation angle. This can ensure that the temperature field around the electric heating device is uniformly distributed, avoid or reduce the uneven temperature field caused by the alternating mixing of cold and hot air around the electric heating device, and avoid or reduce the generation of condensation and dripping of water by the electric heating device.

[0210] like Figure 7 As shown, the control method of the air conditioner in this embodiment is:

[0211] S1. The air conditioner is running in cooling or dehumidification mode.

[0212] S2. Obtain the humidity S detected by the humidity sensor; and obtain the temperature detected by the temperature sensor while controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range.

[0213] S3. Determine the maximum temperature Tmaxj and the minimum temperature Tminj detected by the temperature sensors corresponding to the angles Wj of the electric heating devices, and determine the dew point temperature Kj according to the maximum temperature Tmaxj and the humidity S.

[0214] S4. Determine the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| as the anti-condensation angle.

[0215] S5. The electric heating driving device drives the electric heating device to rotate to an anti-condensation angle.

[0216] In step S5, the electric heating device is located at an anti-condensation angle, and the temperature field around the electric heating device is evenly distributed, which will not cause condensation on the electric heating device.

[0217] In some embodiments, during the condensation condition detection, the electric heating drive device is controlled to drive the electric heating device to rotate within a range from an initial angle to (180 degrees - initial angle) to obtain the temperature detected by the temperature sensor. Figure 4 As shown, the angles W1-W6 of the electric heating device within the rotation range of 0 degrees to 180 degrees are exactly the same as the angles W7-W12 of the electric heating device within the rotation range of 180 degrees to 360 degrees. There is no need to repeat the calculation. Therefore, it is only necessary to control the electric heating device to rotate within the rotation range of 0 degrees to 180 degrees and obtain the temperature detected by the temperature sensor, which can reduce the calculation amount of the control module.

[0218] In some embodiments, when the electric heating device is at an anti-condensation angle, it is determined whether the operating parameters of the air conditioner have changed. When the operating parameters of the air conditioner have changed, the air conditioner is operated for a set time according to the changed operating parameters before entering the condensation condition detection step.

[0219] Among them, the operating parameters of the air conditioner include wind speed, air guide plate position, compressor operating frequency (related to user-set temperature and ambient temperature), etc.

[0220] Due to changes in the operating parameters of the air conditioner, the temperature around the electric heating device changes after the air conditioner is operated according to the changed operating parameters. In order to avoid condensation, after entering the condensation condition detection step, the anti-condensation angle of the electric heating device is re-determined to ensure that the electric heating device is always at an anti-condensation angle with a uniform temperature field.

[0221] This embodiment adds a heating drive to the electric heater, allowing the heater's angle to be adjusted during actual air conditioning operation. Temperature and humidity sensors positioned around the heater monitor the uniformity of the temperature field around the heater. The heater's angle, which provides the most uniform temperature field, is selected as the anti-condensation angle to prevent or minimize condensation. This embodiment adjusts the heater's angle based on the air conditioner's operating status to maintain a uniform temperature field around the heater, preventing condensation from dripping due to the alternating mixing of hot and cold air around the heater.

[0222] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other manner. Any person skilled in the art may utilize the above-disclosed technical content to modify or modify the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention remain within the scope of protection of the present invention.

Claims

1. An air conditioner, characterized in that: The air conditioner comprises: Electric heating device; An electric heating drive device, used to drive the electric heating device to rotate; a detection module, configured to detect parameters of at least two positions around the electric heating device, wherein the at least two positions are in different planes from a plane formed by a rotation axis of the electric heating device; a control module for detecting condensation conditions when the air conditioner is in cooling or dehumidifying operation; and for obtaining parameters detected by the detection module when the electric heating drive device drives the electric heating device to rotate within its rotation range; Used to enter the condensation condition judgment after the condensation condition detection is completed: used to determine the maximum value Tmaxj and the minimum value Tminj of the parameters detected by the detection module corresponding to the angles Wj of several of the electric heating devices, used to calculate the difference between the maximum value Tmaxj and the minimum value Tminj, used to determine that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is the anti-condensation angle, and control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation angle.

2. The air conditioner according to claim 1, characterized in that The detection module includes at least two temperature sensors arranged around the electric heating device, and the plane formed by the at least two temperature sensors and the rotation axis of the electric heating device is different from the plane; a control module for detecting condensation conditions when the air conditioner is in cooling or dehumidification operation; and for controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range to obtain the temperature detected by the temperature sensor; Used to enter the condensation condition judgment after the condensation condition detection is completed: used to determine the maximum temperature Tmaxj and the minimum temperature Tminj of the temperatures detected by the temperature sensor corresponding to the angles Wj of the electric heating devices, used to calculate the difference between the maximum temperature Tmaxj and the minimum temperature Tminj, used to determine that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj is the anti-condensation angle, and control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation angle.

3. The air conditioner according to claim 1, characterized in that The detection module includes a humidity sensor and at least two temperature sensors arranged around the electric heating device, wherein the plane formed by the at least two temperature sensors and the rotation axis of the electric heating device is different from the plane; A control module, configured to detect condensation conditions when the air conditioner is in cooling or dehumidification operation, and to obtain the humidity S detected by the humidity sensor; used to control the electric heating drive device to drive the electric heating device to rotate within its rotation range, to obtain the temperature detected by the temperature sensor; Used to enter the condensation condition judgment after the condensation condition detection is completed: used to determine the maximum temperature Tmaxj and the minimum temperature Tminj of the temperatures detected by the temperature sensor corresponding to the angles Wj of the several electric heating devices, and determine the dew point temperature Kj according to the maximum temperature Tmaxj and the humidity S; used to determine the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| as the anti-condensation angle, and control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation angle.

4. The air conditioner according to any one of claims 1 to 3, characterized in that: The control module is used to determine whether the operating parameters of the air conditioner have changed when the electric heating device is located at the anti-condensation angle, and is used to perform condensation condition detection after running the air conditioner for a set time according to the changed operating parameters when the operating parameters of the air conditioner have changed.

5. The air conditioner according to any one of claims 1 to 3, characterized in that: The control module is used to control the electric heating drive device to drive the electric heating device to rotate within a rotation range from an initial angle to (180 degrees-initial angle) during condensation condition detection.

6. A method for controlling an air conditioner, characterized in that: The air conditioner includes an electric heating device, an electric heating drive device, and a detection module; the electric heating drive device is used to drive the electric heating device to rotate; the detection module is located around the electric heating device and is used to detect parameters of at least two positions around the electric heating device, and the plane formed by the at least two positions and the rotation axis of the electric heating device is different from the plane; the control method is as follows: The air conditioner operates in cooling or dehumidifying mode; Condensation condition detection step: controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range, and obtaining parameters detected by the detection module; Condensation condition judgment step: determine the maximum value Tmaxj and minimum value Tminj of the parameters detected by the detection module corresponding to the angles Wj of several of the electric heating devices, calculate the difference between the maximum value Tmaxj and the minimum value Tminj, determine that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is the anti-condensation angle, and the electric heating drive device drives the electric heating device to rotate to the anti-condensation angle.

7. The air conditioner control method according to claim 6, characterized in that: The detection module includes at least two temperature sensors arranged around the electric heating device, and the plane formed by the at least two temperature sensors and the rotation axis of the electric heating device is different from the plane; the control method is: When the air conditioner is in cooling or dehumidifying operation; Condensation condition detection step: controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range, and obtaining the temperature detected by the temperature sensor; Condensation condition judgment step: determine the maximum temperature Tmaxj and the minimum temperature Tminj of the temperatures detected by the temperature sensor corresponding to the angles Wj of the electric heating devices, calculate the difference between the maximum temperature Tmaxj and the minimum temperature Tminj, determine that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj is the anti-condensation angle, and the electric heating drive device drives the electric heating device to rotate to the anti-condensation angle.

8. The air conditioner control method according to claim 6, characterized in that: The detection module includes a humidity sensor and at least two temperature sensors arranged around the electric heating device, and the plane formed by the at least two temperature sensors and the rotation axis of the electric heating device is different from the plane; the control method is: When the air conditioner is in cooling or dehumidifying operation; Condensation condition detection step: obtaining the humidity S detected by the humidity sensor; controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range, and obtaining the temperature detected by the temperature sensor; Condensation condition judgment steps: determine the maximum temperature Tmaxj and the minimum temperature Tminj of the temperature detected by the temperature sensor corresponding to the angles Wj of the electric heating devices, and determine the dew point temperature Kj based on the maximum temperature Tmaxj and the humidity S; determine the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| as the anti-condensation angle, and the electric heating drive device drives the electric heating device to rotate to the anti-condensation angle.

9. The air conditioner control method according to any one of claims 6 to 8, characterized in that: When the electric heating device is located at the anti-condensation angle, it is determined whether the operating parameters of the air conditioner have changed. If the operating parameters of the air conditioner have changed, the air conditioner is operated for a set time according to the changed operating parameters before entering the condensation condition detection step.

10. The air conditioner control method according to any one of claims 6 to 8, characterized in that: In the condensation condition detection step, the electric heating driving device is controlled to drive the electric heating device to rotate within a rotation range from an initial angle to (180 degrees - the initial angle).

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