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, a detection module driving device and a control module. The application controls the detection device at at least two positions of the electric heating device, controls the electric heating device and the detection device to rotate in a rotating range to obtain a temperature field distribution of the electric heating device, and determines an anti-condensation angle according to the temperature field distribution. The anti-condensation efficiency is high, and the determination of the anti-condensation angle is more accurate. 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 application relates to the technical field of air conditioning devices, in particular to an air conditioner and a control method thereof. BACKGROUND

[0002] The existing air conditioner indoor unit generally has an auxiliary heating function, that is, an electric heating device is arranged in the air conditioner indoor unit to assist heating and enhance the air conditioning heating effect.

[0003] Generally, the electric heating device is arranged near the evaporator of the indoor unit. For example, the electric heating device of a ceiling-mounted air conditioner indoor unit is generally installed between the evaporator and the cross-flow fan. When the air conditioner is running in cooling mode, indoor air passes through the air inlet of the air conditioner indoor unit, is cooled by the evaporator, and becomes cold air. A part of the cold air passes through the electric heating device and is blown out of the air outlet along with the cross-flow fan. Therefore, when the air conditioner is running in cooling mode, the temperature of the electric heating device will decrease rapidly. At the same time, due to the cooling of the air conditioner, a lot of condensed water will condense on the fins of the evaporator. In actual tests after the air conditioner is turned off after cooling, the humidity of the air in the air duct is very high. Therefore, the electric heating device will produce condensed water on the surface after the air conditioner is turned off. When the air conditioner is used in summer, the air conditioner is frequently turned on for cooling, which will cause more and more condensed water on the electric heating device. When the air speed of the air conditioner is high, the condensed water on the electric heating device may be blown out directly and fall into the indoor room, affecting the user's experience of using the air conditioner. At the same time, the long-term presence of condensed water on the electric heating device poses a certain safety hazard, which may cause oxidation and rust of the metal parts of the electric heating device, shorten its service life, and easily cause the electric heating device to be in a humid state for a long time, resulting in mold formation and moldy smell of the air blown out by the air conditioner.

[0004] In addition, according to actual experimental verification, when the air conditioner is running in cooling mode, due to the uneven temperature field around the electric heating device and the high humidity inside, the electric heating device will also continuously produce condensed water during the operation of the air conditioner, which will directly drip after a period of accumulation.

[0005] To solve the above technical problems, the existing solutions are as follows:

[0006] 1. After the air conditioner ends cooling, the air conditioner enters the air supply mode within a short period of time, which can increase the temperature of the electric heating device and reduce the possibility of condensed water on the electric heating device. However, the temperature of the electric heating device cannot be increased to completely avoid the problem of condensed water on the electric heating device.

[0007] 2. When the air conditioner is in refrigeration operation, the air conditioner is controlled to be turned off by a remote controller / voice control / APP, etc. The air fan and compressor of the air conditioner are controlled to be turned off according to the program. After the air deflector of the indoor unit is turned off, the indoor air fan is operated at a low speed according to the set speed, and the electric heating device is turned on for a short time to make the temperature of the electric heating device rise and evaporate the condensed water on the electric heating device. After the refrigeration is completed, the electric heating device is turned on to heat and evaporate the condensed water. However, the problem of excessive condensed water accumulated and dropped during long-term refrigeration operation of the air conditioner cannot be avoided.

[0008] The above information disclosed in the background section of this specification is only for the purpose of enhancing the understanding of the background of the present application and therefore, it can include matters known by those skilled in the art. SUMMARY

[0009] The present application aims to provide an air conditioner and a control method thereof, which solve the technical problem that the temperature around the electric heating device is different during refrigeration or dehumidification operation of the existing air conditioner, thereby causing condensed water on the electric heating device.

[0010] An air conditioner, comprising:

[0011] an electric heating device;

[0012] an electric heating driving device for driving the electric heating device to rotate;

[0013] a detection module located around the electric heating device and rotating synchronously with the electric heating device;

[0014] a detection module driving device for driving the detection module to rotate along the axial direction of the electric heating device;

[0015] a control module for detecting the condensation condition when the air conditioner is in refrigeration or dehumidification operation: for driving the detection module to rotate in at least two positions in the axial direction of the electric heating device by the detection module driving device; for controlling the electric heating driving device to drive the electric heating device to rotate in the rotation range thereof when the detection module detects the parameter data at each position;

[0016] for entering the condensation condition judgment after the condensation condition detection is completed: for obtaining the temperature field distribution data around the electric heating device according to the parameter data, determining that the angle of the electric heating device corresponding to the most uniform temperature field distribution data around the electric heating device is the anti-condensation angle, and controlling the electric heating driving device to drive the electric heating device to rotate to the anti-condensation angle.

[0017] The air conditioner as described above, wherein the detection module comprises a temperature sensor arranged around the electric heating device.

[0018] The control module is configured to detect the condensation condition when the air conditioner is in cooling or dehumidifying operation: when the detection module is in the first position in the axial direction of the electric heating device, the electric heating driving device is controlled to drive the electric heating device to rotate in the rotation range thereof, and the first temperature data detected by the temperature sensor is acquired; when the detection module is in the second position in the axial direction of the electric heating device, the electric heating driving device is controlled to drive the electric heating device to rotate in the rotation range thereof, and the second temperature data detected by the detection module is acquired.

[0019] After the condensation condition detection is completed, the condensation condition is determined: the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of the electric heating device are determined, the first temperature T1(j+180°) and the second temperature T2(j+180°) detected by the temperature sensor corresponding to the angle W(j+180°) of the electric heating device are determined, the minimum value of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| corresponding to the angle of the electric heating device is determined as the anti-condensation angle, and the electric heating driving device is controlled to drive the electric heating device to rotate to the anti-condensation angle.

[0020] The air conditioner described above, the detection module comprises a humidity sensor and a temperature sensor arranged around the electric heating device, and at least the temperature sensor rotates synchronously with the electric heating device.

[0021] The control module is configured to detect the condensation condition when the air conditioner is in cooling or dehumidifying operation: when the detection module is in the first position in the axial direction of the electric heating device, the electric heating driving device is controlled to drive the electric heating device to rotate in the rotation range thereof, and the first temperature data detected by the temperature sensor is acquired; when the detection module is in the second position in the axial direction of the electric heating device, the electric heating driving device is controlled to drive the electric heating device to rotate in the rotation range thereof, and the second temperature data detected by the detection module is acquired.

[0022] Used to enter the condensation condition judgment after the condensation condition detection is completed: used to determine the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of the plurality of electric heating devices; used to determine the first temperature T1(j+180°) and the second temperature T2(j+180°) detected by the temperature sensor corresponding to the angle W(j+180°) of the plurality of electric heating devices; used to determine the dew point temperature K according to max[T1(j), T1(j+180°), T2(j), T2(j+180°)] and humidity S; used to determine the angle of the electric heating device corresponding to the minimum value of |K-min[T1(j), T1(j+180°), T2(j), T2(j+180°)]| 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] As described above, in an air conditioner, 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, and to run the air conditioner according to the changed operating parameters for a set time before performing condensation condition detection when the operating parameters of the air conditioner change.

[0024] As described above, in the air conditioner, the control module is used to obtain the current angle of the electric heating device and to select the angle W(j) or W(j+180°) of the electric heating device with a smaller rotation amplitude than the current angle as the anti-condensation angle.

[0025] A control method for an air conditioner, the air conditioner comprising an electric heating device, an electric heating drive device, a detection module, and a detection module drive device; 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 rotates synchronously with the electric heating device; the detection module drive device is used to drive the detection module to rotate along the axial direction of the electric heating device; the control method is as follows:

[0026] The air conditioner is operating in either cooling or dehumidification mode.

[0027] Condensation condition detection steps: The detection module driving device drives the detection module to at least two positions in the axial direction of the electric heating device; when the electric heating driving device is controlled to rotate within its rotation range at the at least two positions, the parameter data detected by the detection module at each position is acquired;

[0028] Condensation condition judgment steps: Based on the parameter data, obtain the temperature field distribution data around the electric heating device, determine the angle of the electric heating device corresponding to the most uniform temperature field distribution data around the electric heating device 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.

[0029] The control method for the air conditioner described above includes a detection module comprising a temperature sensor disposed around the electric heating device, and the control method is as follows:

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

[0031] Condensation condition detection steps: When the detection module is controlled to be in the first position along the axial direction of the electric heating device, and the electric heating drive device is controlled to drive the electric heating device to rotate within its rotation range, the first temperature data detected by the temperature sensor is obtained; when the detection module is controlled to be in the second position along the axial direction of the electric heating device, and the electric heating drive device is controlled to drive the electric heating device to rotate within its rotation range, the second temperature data detected by the detection module is obtained.

[0032] Condensation condition judgment steps: Determine the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of the electric heating device, determine the first temperature T1(j+180°) and the second temperature T2(j+180°) detected by the temperature sensor corresponding to the angle W(j+180°) of the electric heating device, determine the angle of the electric heating device corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| as the anti-condensation angle, and drive the electric heating device to rotate the electric heating device to the anti-condensation angle.

[0033] In the air conditioner control method described above, the detection module includes a humidity sensor and a temperature sensor disposed around the electric heating device, wherein at least the temperature sensor rotates synchronously with the electric heating device; the control method is as follows:

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

[0035] Condensation condition detection steps: Obtain the humidity S detected by the humidity sensor; control the detection module to be in the first position along the axis of the electric heating device, and control the electric heating drive device to drive the electric heating device to rotate within its rotation range, while obtaining the first temperature data detected by the temperature sensor; control the detection module to be in the second position along the axis of the electric heating device, and control the electric heating drive device to drive the electric heating device to rotate within its rotation range, while obtaining the second temperature data detected by the detection module.

[0036] Condensation condition judgment steps: Determine the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of the electric heating device; determine the temperature T1(j+180°) and the second temperature T2(j+180°) detected by the temperature sensor corresponding to the angle W(j+180°) of the electric heating device; determine the dew point temperature K according to max[T1(j), T1(j+180°), T2(j), T2(j+180°)] and humidity S; determine the angle of the electric heating device corresponding to the minimum value of |K-min[T1(j), T1(j+180°), T2(j), T2(j+180°)]| as the anti-condensation angle; and drive the electric heating device to rotate to the anti-condensation angle.

[0037] As described above, in the control method of the air conditioner, 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 system runs for a set time according to the changed operating parameters before entering the condensation condition detection step.

[0038] As described above, the control method for the air conditioner obtains the current angle of the electric heating device and selects the angle W(j) or W(j+180°) of the electric heating device, which has a smaller rotation amplitude than the current angle, as the anti-condensation angle.

[0039] Compared with existing technologies, the advantages and positive effects of this invention are as follows: The air conditioner of this invention includes an electric heating device, an electric heating drive device, a detection module drive device, and a control module. The electric heating drive device drives the electric heating device to rotate. The detection module is located around the electric heating device and rotates synchronously with it. The detection module drive device drives the detection module to rotate along the axial direction of the electric heating device. The control module is used to detect condensation conditions during air conditioner cooling or dehumidification operation: it drives the detection module to at least two positions along the axial direction of the electric heating device via the detection module drive device; it acquires parameter data detected by the detection module at each position while controlling the electric heating drive device to rotate within its rotation range at at least two positions; and it enters the condensation condition judgment stage after condensation condition detection is completed: it obtains temperature field distribution data around the electric heating device based on the parameter data, determines the angle of the electric heating device corresponding to the most uniform temperature field distribution data around the electric heating device as the anti-condensation angle, and controls the electric heating drive device to rotate the electric heating device to the anti-condensation angle. This invention can avoid or reduce the problem of condensation on the electric heating device during air conditioner cooling or dehumidification operation. This invention controls the detection device to be positioned at at least two locations on the electric heating device, and controls the electric heating device and the detection device to rotate within a rotation range to obtain the temperature field distribution around the electric heating device. Based on the temperature field distribution, the anti-condensation angle can be determined, resulting in high anti-condensation efficiency and more accurate determination of the anti-condensation angle.

[0040] The control method of the air conditioner of the present invention is as follows: During the cooling or dehumidifying operation of the air conditioner; Condensation condition detection step: The detection module driving device drives the detection module to at least two positions in the axial direction of the electric heating device; At each of the at least two positions, the electric heating driving device is controlled to rotate within its rotation range, and parameter data detected by the detection module at each position is acquired; Condensation condition judgment step: Based on the parameter data, the temperature field distribution data around the electric heating device is obtained, and the angle of the electric heating device corresponding to the most uniform temperature field distribution around the electric heating device is determined as the anti-condensation angle. The electric heating driving device is then controlled to rotate the electric heating device to the anti-condensation angle. This invention can avoid or reduce the problem of condensation on the electric heating device during the cooling or dehumidifying process of the air conditioner. By controlling the detection device at at least two positions on the electric heating device and controlling the rotation of the electric heating device and the detection device within their rotation range to obtain the temperature field distribution around the electric heating device, the anti-condensation angle can be determined based on the temperature field distribution. This method offers high anti-condensation efficiency and more accurate determination of the anti-condensation angle.

[0041] Other features and advantages of the present invention will become clearer after reading the detailed embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

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

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

[0044] Figure 3 This is a schematic diagram of another state of the electric heating device according to a specific embodiment of the present invention.

[0045] Figure 4 yes Figure 3 Side view.

[0046] Figure 5 This is a flowchart of a specific embodiment of the present invention.

[0047] Figure 6 This is a flowchart of a specific embodiment two of the present invention.

[0048] Figure 7 This is a flowchart of a specific embodiment three of the present invention.

[0049] In the picture,

[0050] 1. Evaporator;

[0051] 2. Electric heating device;

[0052] 3. Cross-flow fan;

[0053] 4. Detection module;

[0054] 5. Electric heating drive device;

[0055] 6. Detection module driver. Detailed Implementation

[0056] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0057] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this 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.

[0058] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0060] like Figures 1-4 As shown, the air conditioner includes an evaporator 1, an electric heating device 2, and a cross-flow fan 3 arranged sequentially in the airflow direction inside the casing.

[0061] exist Figure 1 As shown, during the cooling or dehumidifying operation of the air conditioner, the temperatures of the space above, below, to the left, and to the right of the electric heating device 2 are not consistent. When the detected temperatures in the two areas surrounding the electric heating device are as follows: the lower temperature is lower than the dew point temperature of the higher temperature, condensation will occur between the two temperature zones, i.e., condensate will form on the electric heating device. During air conditioner operation, the electric heating device continuously produces condensate, which accumulates over time and drips directly, then is blown out by the cross-flow fan.

[0062] When an air conditioner is running, different operating states, such as fan speed, air deflector position, and compressor operating frequency (determined by ambient temperature and user-set temperature), result in inconsistent temperature distribution around the electric heating device even when the device is at the same angle.

[0063] During the cooling or dehumidifying operation of an air conditioner, the angle of the electric heating element is crucial for the uniformity of the temperature field distribution around it. If the electric heating element is positioned at an angle that results in an uneven temperature field distribution, condensation is likely to occur on the electric heating element 2. Conversely, if the electric heating element is positioned at an angle that results in a uniform temperature field distribution, condensation can be avoided or its occurrence reduced. Therefore, the objective of this invention is to determine the anti-condensation position of the electric heating element so that its surrounding parameters do not meet the condensation conditions.

[0064] The air conditioner includes an electric heating device 2 and an electric heating drive device 5. The electric heating drive 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.

[0065] The electric heating element 2 of the air conditioner is driven to rotate by the electric heating drive device 5. The electric heating element 2 is generally rotatably mounted on the mounting bracket or the 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 element 2 to rotate. The drive motor can directly drive the electric heating element 2 or drive it through gears.

[0066] The electric heating drive device 5 typically drives the electric heating device 2 to rotate alternately in both forward and reverse directions within its rotation range to avoid tangling of the electric heating wires.

[0067] The air conditioner includes a detection module 4 located around the electric heating device 2.

[0068] The detection module 4 is at a certain distance from the electric heating device 2 and is used to detect the parameters around the electric heating device 2.

[0069] To reduce costs, only one detection module 4 is required to achieve the purpose of this invention.

[0070] The air conditioner includes a detection module drive device 6, which drives the detection module 4 to rotate along the axial direction of the electric heating device 2, wherein the axial direction of the electric heating device 2 is the direction of the rotation axis of the electric heating device 2.

[0071] The detection module drive device can be an electric cylinder or a pneumatic cylinder, etc., which has a retracted position and at least one extended position, with the detection module 4 located on the telescopic rod. Alternatively, the detection module drive device can be a motor-driven gear and rack structure, with the detection module 4 located on the rack.

[0072] The following is an illustration through specific embodiments:

[0073] Example 1

[0074] The air conditioner includes: an electric heating device, an electric heating drive device, a detection module, a detection module drive device, and a control module.

[0075] An electric heating drive is used to drive the electric heating device to rotate.

[0076] The detection module is located around the electric heating device and rotates synchronously with the electric heating device.

[0077] The detection module drive device is used to drive the detection module to rotate along the axial direction of the electric heating device.

[0078] The control module is used to detect condensation conditions during the cooling or dehumidification operation of the air conditioner: it is used to drive the detection module to at least two positions in the axial direction of the electric heating device through the detection module drive device; and it is used to acquire the parameter data detected by the detection module at each position when controlling the electric heating drive device to rotate within its rotation range at at least two positions respectively.

[0079] Specifically, in Figure 3 In the middle, the detection module drive device 6 drives the detection module 4 to the retracted position. At this time, when the control electric heating drive device drives the electric heating device to rotate within its rotation range, the detection module detects the first parameter data.

[0080] exist Figure 2 In the middle, the detection module drive device 6 drives the detection module 4 to the extended position. At this time, when the control electric heating drive device drives the electric heating device to rotate within its rotation range, the detection module detects the second parameter data.

[0081] In some embodiments, the electric heating drive device drives the electric heating device and the detection module to rotate uniformly at a set speed V within their rotation range, and the detection module detects parameters in real time. The parameters detected by the detection module at several angles Wj and W(j+180°) are selected, including several first parameter data at the extended position and second parameter data at the retracted position.

[0082] Wherein, angle Wj is the angle between the initial angle and the final angle / 2.

[0083] For example, if the rotation angle of an electric heating device is 0-360 degrees, and the initial angle at the start of rotation of the electric heating device during one clockwise rotation and one counterclockwise rotation is defined as 0 degrees, and the final angle at the stop of rotation is 360 degrees, then the angle Wj is an angle between 0 and 180 degrees.

[0084] In some embodiments, the rotation angle range of the electric heating device is divided into n angles, each angle having a size of D. At each angle, the detection module detects parameters. At this time, the electric heating drive device drives the electric heating device to rotate uniformly at a set speed V within its rotation range, or pauses briefly at each angle.

[0085] The control module is used to enter the condensation condition judgment after the condensation condition detection is completed: it is used to obtain the temperature field distribution data around the electric heating device based on the parameter data, determine the angle of the electric heating device corresponding to the most uniform temperature field distribution data around the electric heating device 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.

[0086] The detection module detects the first parameter T1(j) and the second parameter T2(j) corresponding to the angle W(j) of several electric heating devices. The detection module detects the first parameter T1(j+180°) and the second parameter T2(j) corresponding to the angle W(j+180°) of several electric heating devices. The angle of the electric heating device corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| is the anti-condensation angle. The electric heating drive device is controlled to drive the electric heating device to rotate to the anti-condensation angle.

[0087] Among them, the anti-condensation angle can be W(j) or W(j+180°) corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)|.

[0088] Furthermore, the anti-condensation angle can be W(j) or W(j+180°) where both |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| are less than the set value, and the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| corresponds to the minimum value.

[0089] In some embodiments, the control module is used to obtain the current angle of the electric heating device and select an angle W(j) or W(j+180°) of the electric heating device with a smaller rotation amplitude than the current angle as the anti-condensation angle, so as to reduce the rotation amplitude of the electric heating device, save energy and reduce rotation noise.

[0090] The control module is used to control the electric heating drive device to rotate the electric heating device and the detection device from the initial angle to the final angle in the condensation condition detection, and to obtain the parameters detected by the detection module, or to rotate from the final angle to the initial angle and obtain the parameters detected by the detection module, so as to comprehensively detect the parameters around the electric heating device and improve the accuracy.

[0091] The control module is used to determine whether the operating parameters of the air conditioner have changed when the electric heating device is in the anti-condensation angle. When the operating parameters of the air conditioner change, it is used to run the system according to the changed operating parameters for a set time before performing condensation condition detection.

[0092] The operating parameters of an air conditioner include fan speed, air deflector position, and compressor operating frequency (related to user-set temperature and ambient temperature).

[0093] Because the air conditioner's operating parameters change, the parameters around the electric heating device also change after operating according to the changed 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 the anti-condensation angle with a uniform temperature field.

[0094] In this embodiment, when the air conditioner is cooling or dehumidifying, condensation conditions are first detected: The electric heating drive device and the detection module are rotated within their rotation range, and the parameters detected by the detection module are acquired. Specifically, the detection module detects parameters when rotating within the rotation range of the electric heating device at at least two positions along its axial direction. After the condensation condition detection is completed, the condensation condition judgment is performed: the first parameter T1(j) and the second parameter T2(j) detected by the detection module corresponding to the angle W(j) of several electric heating devices are determined, and the first parameter T1(j+180°) and the second parameter T2(j+180°) detected by the detection module corresponding to the angle W(j+180°) of several electric heating devices are determined. The magnitude of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| reflects whether the temperature field distribution around the electric heating device is uniform. The smaller the difference, the more uniform the temperature field distribution, and the lower the risk of condensation from the electric heating device. Therefore, the angle of the electric heating device corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| is determined as the anti-condensation angle. The electric heating drive device is controlled to drive the electric heating device to rotate to the anti-condensation angle. The anti-condensation angle found in this embodiment can ensure a uniform temperature field distribution around the electric heater, thus avoiding or reducing condensation from the electric heating device.

[0095] The control method for air conditioners is as follows:

[0096] The air conditioner is in cooling or dehumidification mode.

[0097] Condensation condition detection steps: Drive the detection module to at least two positions in the axial direction of the electric heating device using the detection module drive device; when controlling the electric heating drive device to rotate within its rotation range at each of the at least two positions, acquire the parameter data detected by the detection module at each position.

[0098] Specifically, in Figure 3 In the middle, the detection module drive device 6 drives the detection module 4 to the retracted position. At this time, when the control electric heating drive device drives the electric heating device to rotate within its rotation range, the detection module detects the first parameter data.

[0099] exist Figure 2In the middle, the detection module drive device 6 drives the detection module 4 to the extended position. At this time, when the control electric heating drive device drives the electric heating device to rotate within its rotation range, the detection module detects the second parameter data.

[0100] Condensation condition judgment steps: Obtain the temperature field distribution data around the electric heating device based on the parameter data, determine the angle of the electric heating device corresponding to the most uniform temperature field distribution data around the electric heating device 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.

[0101] The first parameter T1(j) and the second parameter T2(j) detected by the detection module corresponding to the angle W(j) of several electric heating devices are determined. The first parameter T1(j+180°) and the second parameter T2(j+180°) detected by the detection module corresponding to the angle W(j+180°) of several electric heating devices are determined. The angle of the electric heating device corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| is determined as the anti-condensation angle. The electric heating drive device is controlled to drive the electric heating device to rotate to the anti-condensation angle.

[0102] Among them, the anti-condensation angle can be W(j) or W(j+180°) corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)|.

[0103] Furthermore, the anti-condensation angle can be W(j) or W(j+180°) where both |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| are less than the set value, and the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| corresponds to the minimum value.

[0104] The anti-condensation angle can ensure a uniform temperature field distribution around the electric heating device, avoid or reduce uneven temperature field caused by alternating mixing of hot and cold air around the electric heating device, and avoid or reduce the generation of condensation water and dripping from the electric heating device.

[0105] like Figure 5 As shown, the control method of the air conditioner in this embodiment is as follows:

[0106] S1, the air conditioner is in cooling or dehumidification mode.

[0107] S2. The control and detection module drive device drives the detection module to a first position, and controls the electric heating drive device to rotate the electric heating device and the detection module within their rotation range to acquire the first parameter data detected by the detection module. The control and detection module drive device drives the detection module to a second position, and controls the electric heating drive device to rotate the electric heating device and the detection module within their rotation range to acquire the second parameter data detected by the detection module.

[0108] S3. Determine the first parameter T1(j) and the second parameter T2(j) detected by the detection module corresponding to the angle W(j) of several electric heating devices, and determine the first parameter T1(j+180°) and the second parameter T2(j+180°) detected by the detection module corresponding to the angle W(j+180°) of several electric heating devices.

[0109] S4. Determine the angle of the electric heating device corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| as the anti-condensation angle.

[0110] S5. The electric heating drive device drives the electric heating device to rotate to the anti-condensation angle.

[0111] In step S5, the anti-condensation angle of the electric heating device ensures that the temperature field around the electric heating device is uniformly distributed, preventing condensation from forming on the electric heating device.

[0112] In some embodiments, during condensation condition detection, the parameters detected by the detection module are acquired when the electric heating drive device rotates from an initial angle to a final angle, or when it rotates from the final angle to the initial angle. This allows for the detection of parameters at several angles across all rotation ranges of the electric heating device, improving accuracy.

[0113] In some embodiments, when the electric heating device is 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 device is run for a set time according to the changed operating parameters before proceeding to the condensation condition detection step.

[0114] The operating parameters of an air conditioner include fan speed, air deflector position, and compressor operating frequency (related to user-set temperature and ambient temperature).

[0115] Because the air conditioner's operating parameters change, the parameters around the electric heating device also change after operating according to the changed 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 the anti-condensation angle with a uniform temperature field.

[0116] Example 2

[0117] In this embodiment, the detection module 4 includes a temperature sensor located around the electric heating device.

[0118] The temperature sensor is positioned at a certain distance from the electric heating device and is used to measure the air temperature around the electric heating device.

[0119] The temperature sensor is mounted on the electric heating device via a detection module drive and rotates synchronously with the electric heating device.

[0120] The detection module driver is fixedly mounted on the electric heating device, usually by means of a bracket.

[0121] The control module is used to detect condensation conditions during the cooling or dehumidification operation of the air conditioner: when the detection module is in the first axial position of the electric heating device, it controls the electric heating drive device to rotate within its rotation range and acquires the first temperature data detected by the temperature sensor; when the detection module is in the second axial position of the electric heating device, it controls the electric heating drive device to rotate within its rotation range and acquires the second temperature data detected by the detection module.

[0122] In some embodiments, the electric heating drive device drives the electric heating device and the temperature sensor to rotate uniformly at a set speed V within their rotation range, and the temperature sensor detects the temperature in real time. The temperatures detected by the temperature sensor at several angles Wj and W(j+180°) of the electric heating module are selected, including several first temperature data at the first position and second temperature data at the second position.

[0123] Wherein, angle Wj is the angle between the initial angle and the final angle / 2.

[0124] For example, if the rotation angle of an electric heating device is 0-360 degrees, and the initial angle at the start of rotation of the electric heating device during one clockwise rotation and one counterclockwise rotation is defined as 0 degrees, and the final angle at the stop of rotation is 360 degrees, then the angle Wj is an angle between 0 and 180 degrees.

[0125] In some embodiments, the rotation angle range of the electric heating device is divided into n angles, each angle having a size of D. At each angle, the sensor detects the temperature of the electric heating device. At this time, the electric heating drive device drives the electric heating device to rotate uniformly at a set speed V within its rotation range, or pauses briefly at each angle.

[0126] The control module is used to enter the condensation condition judgment after the condensation condition detection is completed: it is used to determine the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of several electric heating devices; it is used to determine the first temperature T1(j+180°) and the second temperature T2(j+180°) detected by the temperature sensor corresponding to the angle W(j+180°) of several electric heating devices; it is used to determine the angle of the electric heating device corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| as the anti-condensation angle, and controls the electric heating drive device to drive the electric heating device to rotate to the anti-condensation angle.

[0127] Among them, the anti-condensation angle can be W(j) or W(j+180°) corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)|.

[0128] Furthermore, the anti-condensation angle can be W(j) or W(j+180°) where both |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| are less than the set value, and the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| corresponds to the minimum value.

[0129] In some embodiments, the control module is used to obtain the current angle of the electric heating device and select an angle W(j) or W(j+180°) of the electric heating device with a smaller rotation amplitude than the current angle as the anti-condensation angle, so as to reduce the rotation amplitude of the electric heating device, save energy and reduce rotation noise.

[0130] The control module is used to control the electric heating drive device to rotate the electric heating device and the detection device from the initial angle to the final angle in condensation condition detection, and to obtain the temperature detected by the temperature sensor, or to rotate from the final angle to the initial angle and obtain the temperature detected by the temperature sensor. This allows for comprehensive detection of the temperature around the electric heating device, improving accuracy.

[0131] The control module is used to determine whether the operating parameters of the air conditioner have changed when the electric heating device is in the anti-condensation angle. When the operating parameters of the air conditioner change, it is used to run the system according to the changed operating parameters for a set time before performing condensation condition detection.

[0132] The operating parameters of an air conditioner include fan speed, air deflector position, and compressor operating frequency (related to user-set temperature and ambient temperature).

[0133] Because the air conditioner's operating parameters change, the parameters around the electric heating device also change after operating according to the changed 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 the anti-condensation angle with a uniform temperature field.

[0134] In this embodiment, when the air conditioner is cooling or dehumidifying, the condensation condition is first detected: when the electric heating drive device drives the electric heating device and the temperature sensor to rotate within their rotation range, the temperature detected by the temperature sensor is obtained. The detection module detects the temperature when it rotates within the rotation range of the electric heating device at at least two positions in the axial direction of the electric heating device. After the condensation conditions are detected, the condensation conditions are judged: the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of several electric heating devices are determined, and the first temperature T1(j+180°) and the second temperature T2(j+180°) detected by the temperature sensor corresponding to the angle W(j+180°) of several electric heating devices are determined. The magnitude of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| reflects whether the temperature field distribution around the electric heating device is uniform. The smaller the difference, the more uniform the temperature field distribution, and the lower the risk of condensation from the electric heating device. Therefore, the angle of the electric heating device corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| is determined as the anti-condensation angle. The electric heating drive device is controlled to drive the electric heating device to rotate to the anti-condensation angle. The anti-condensation angle found in this embodiment can ensure a uniform temperature field distribution around the electric heater, thus avoiding or reducing condensation from the electric heating device.

[0135] The control method for air conditioners is as follows:

[0136] The air conditioner is in cooling or dehumidification mode.

[0137] Condensation condition detection steps: Drive the detection module to at least two positions in the axial direction of the electric heating device through the detection module drive device; when controlling the electric heating drive device to rotate within its rotation range at at least two positions, acquire the temperature data detected by the temperature sensor at each position.

[0138] Specifically, in Figure 3 In the middle, the detection module drive device 6 drives the detection module 4 to the first position. At this time, when the electric heating drive device is controlled to rotate within its rotation range, the temperature sensor detects the first temperature data.

[0139] exist Figure 2In the middle, the detection module drive device 6 drives the detection module 4 to the second position. At this time, when the control electric heating drive device drives the electric heating device to rotate within its rotation range, the temperature sensor detects the second temperature data.

[0140] Condensation condition judgment steps: Determine the first temperature T1(j) and the second temperature T2(j) detected by the detection module corresponding to the angle W(j) of several electric heating devices; determine the first temperature T1(j+180°) and the second temperature T2(j+180°) detected by the detection module corresponding to the angle W(j+180°) of several electric heating devices; determine the angle of the electric heating device corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| as the anti-condensation angle; control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation angle.

[0141] Among them, the anti-condensation angle can be W(j) or W(j+180°) corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)|.

[0142] Furthermore, the anti-condensation angle can be W(j) or W(j+180°) where both |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| are less than the set value, and the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| corresponds to the minimum value.

[0143] The anti-condensation angle can ensure a uniform temperature field distribution around the electric heating device, avoid or reduce uneven temperature field caused by alternating mixing of hot and cold air around the electric heating device, and avoid or reduce the generation of condensation water and dripping from the electric heating device.

[0144] like Figure 6 As shown, the control method of the air conditioner in this embodiment is as follows:

[0145] S1, the air conditioner is in cooling or dehumidification mode.

[0146] S2. The control and detection module drive device drives the detection module to a first position, and controls the electric heating drive device to drive the electric heating device and the detection module to rotate within their rotation range, acquiring the first temperature data detected by the detection module. The control and detection module drive device drives the detection module to a second position, and controls the electric heating drive device to drive the electric heating device and the detection module to rotate within their rotation range, acquiring the second temperature data detected by the detection module.

[0147] S3. Determine the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of several electric heating devices, and determine the first temperature T1(j+180°) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j+180°) of several electric heating devices.

[0148] S4. Determine the angle of the electric heating device corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| as the anti-condensation angle.

[0149] S5. The electric heating drive device drives the electric heating device to rotate to the anti-condensation angle.

[0150] In step S5, the anti-condensation angle of the electric heating device ensures that the temperature field around the electric heating device is uniformly distributed, preventing condensation from forming on the electric heating device.

[0151] In some embodiments, during condensation condition detection, the temperature detected by the temperature sensor is acquired when the electric heating drive device rotates from an initial angle to a final angle, or when it rotates from the final angle to the initial angle. This allows for the detection of temperatures at several angles across all rotation ranges of the electric heating device, improving accuracy.

[0152] In some embodiments, when the electric heating device is 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 device is run for a set time according to the changed operating parameters before proceeding to the condensation condition detection step.

[0153] The operating parameters of an air conditioner include fan speed, air deflector position, and compressor operating frequency (related to user-set temperature and ambient temperature).

[0154] Because the air conditioner's operating parameters change, the temperature around the electric heating device changes after operating according to the changed 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 the anti-condensation angle with a uniform temperature field.

[0155] Example 3

[0156] In this embodiment, the detection module 4 includes a temperature sensor and a humidity sensor located around the electric heating device.

[0157] The temperature sensor is positioned at a certain distance from the electric heating device and is used to measure the air temperature around the electric heating device.

[0158] The temperature sensor is mounted on the electric heating device via a detection module drive and rotates synchronously with the electric heating device.

[0159] The detection module driver is fixedly mounted on the electric heating device, usually by means of a bracket.

[0160] There are no restrictions on the installation location of the humidity sensor. The humidity sensor can be fixedly installed inside the air conditioner. Of course, the humidity sensor can also be installed on a mounting bracket and rotate synchronously with the electric heating device.

[0161] The control module is used to detect condensation conditions during the cooling or dehumidification operation of the air conditioner: it is used to acquire the humidity S detected by the humidity sensor; when the detection module is in the first axial position of the electric heating device, it controls the electric heating drive device to rotate within its rotation range and acquires the first temperature data detected by the temperature sensor; when the detection module is in the second axial position of the electric heating device, it controls the electric heating drive device to rotate within its rotation range and acquires the second temperature data detected by the detection module.

[0162] In some embodiments, the electric heating drive device drives the electric heating device and the temperature sensor to rotate uniformly at a set speed V within their rotation range, and the temperature sensor detects the temperature in real time. The temperatures detected by the temperature sensor at several angles Wj and W(j+180°) of the electric heating module are selected, including several first temperature data at the first position and second temperature data at the second position.

[0163] Wherein, angle Wj is the angle between the initial angle and the final angle / 2.

[0164] For example, if the rotation angle of an electric heating device is 0-360 degrees, and the initial angle at the start of rotation of the electric heating device during one clockwise rotation and one counterclockwise rotation is defined as 0 degrees, and the final angle at the stop of rotation is 360 degrees, then the angle Wj is an angle between 0 and 180 degrees.

[0165] In some embodiments, the rotation angle range of the electric heating device is divided into n angles, each angle having a size of D. At each angle, a temperature sensor detects the temperature. Then, the electric heating drive device drives the electric heating device to rotate uniformly at a set speed V within its rotation range, or pauses briefly at each angle.

[0166] The control module is used to enter the condensation condition judgment after the condensation condition detection is completed: it is used to determine the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of several electric heating devices; it is used to determine the first temperature T1(j+180°) and the second temperature T2(j+180°) detected by the temperature sensor corresponding to the angle W(j+180°) of several electric heating devices; it is used to determine the dew point temperature K according to max[T1(j), T1(j+180°), T2(j), T2(j+180°)] and humidity S; it is used to determine the angle of the electric heating device corresponding to the minimum value of |K-min[T1(j), T1(j+180°), T2(j), T2(j+180°)]| 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.

[0167] Among them, the anti-condensation angle can be W(j) or W(j+180°) corresponding to the minimum value of |K-min[T1(j), T1(j+180°), T2(j), T2(j+180°)]|.

[0168] In some embodiments, the control module is used to obtain the current angle of the electric heating device and select an angle W(j) or W(j+180°) of the electric heating device with a smaller rotation amplitude than the current angle as the anti-condensation angle, so as to reduce the rotation amplitude of the electric heating device, save energy and reduce rotation noise.

[0169] The control module is used to control the electric heating drive device to rotate the electric heating device and the detection device from the initial angle to the final angle in condensation condition detection, and to obtain the temperature detected by the temperature sensor, or to rotate from the final angle to the initial angle and obtain the temperature detected by the temperature sensor. This allows for comprehensive detection of the temperature around the electric heating device, improving accuracy.

[0170] The control module is used to determine whether the operating parameters of the air conditioner have changed when the electric heating device is in the anti-condensation angle. When the operating parameters of the air conditioner change, it is used to run the system according to the changed operating parameters for a set time before performing condensation condition detection.

[0171] The operating parameters of an air conditioner include fan speed, air deflector position, and compressor operating frequency (related to user-set temperature and ambient temperature).

[0172] Because the air conditioner's operating parameters change, the parameters around the electric heating device also change after operating according to the changed 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 the anti-condensation angle with a uniform temperature field.

[0173] In this embodiment, when the air conditioner is cooling or dehumidifying, the condensation condition is first detected: the humidity S detected by the humidity sensor is obtained, and when the electric heating drive device drives the electric heating device and the temperature sensor to rotate within their rotation range, the temperature detected by the temperature sensor is obtained. The detection module detects the temperature when it rotates within the rotation range of the electric heating device at at least two positions in the axial direction of the electric heating device. After the condensation conditions are detected, the condensation conditions are then judged: The first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of several electric heating devices are determined. The first temperature T1(j+180°) and the second temperature T2(j+180°) detected by the temperature sensor corresponding to the angle W(j+180°) of several electric heating devices are also determined. The dew point temperature K is determined based on max[T1(j), T1(j+180°), T2(j), T2(j+180°)] and humidity S. The magnitude of |K-min[T1(j), T1(j+180°), T2(j), T2(j+180°)]| reflects whether the temperature field distribution around the electric heating device is uniform. The smaller the difference, the more uniform the temperature field distribution, and the lower the risk of condensation from the electric heating device. Therefore, |K-min]| is determined. The minimum value of min[T1(j), T1(j+180°), T2(j), T2(j+180°)]| corresponds to the angle of the electric heating device, which is the anti-condensation angle. The electric heating drive device is controlled to rotate the electric heating device to the anti-condensation angle. The anti-condensation angle found in this embodiment can ensure that the temperature field distribution around the electric heating is uniform, thus avoiding or reducing condensation from the electric heating device.

[0174] The control method for air conditioners is as follows:

[0175] The air conditioner is in cooling or dehumidification mode.

[0176] Condensation condition detection steps: Obtain the humidity S detected by the humidity sensor; drive the detection module to at least two positions in the axial direction of the electric heating device through the detection module drive device; when the electric heating drive device is controlled to rotate within its rotation range at at least two positions, obtain the temperature data detected by the temperature sensor at each position.

[0177] Specifically, in Figure 3 In the middle, the detection module drive device 6 drives the detection module 4 to the first position. At this time, when the electric heating drive device is controlled to rotate within its rotation range, the temperature sensor detects the first temperature data.

[0178] exist Figure 2 In the middle, the detection module drive device 6 drives the detection module 4 to the second position. At this time, when the control electric heating drive device drives the electric heating device to rotate within its rotation range, the temperature sensor detects the second temperature data.

[0179] Condensation condition judgment steps: Determine the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of several electric heating devices; determine the first temperature T1(j+180°) and the second temperature T2(j+180°) detected by the temperature sensor corresponding to the angle W(j+180°) of several electric heating devices; determine the dew point temperature K based on max[T1(j), T1(j+180°), T2(j), T2(j+180°)] and humidity S; determine the angle of the electric heating device corresponding to the minimum value of |K-min[T1(j), T1(j+180°), T2(j), T2(j+180°)]| as the anti-condensation angle; and drive the electric heating device to rotate to the anti-condensation angle.

[0180] The anti-condensation angle can ensure a uniform temperature field distribution around the electric heating device, avoid or reduce uneven temperature field caused by alternating mixing of hot and cold air around the electric heating device, and avoid or reduce the generation of condensation water and dripping from the electric heating device.

[0181] like Figure 7 As shown, the control method of the air conditioner in this embodiment is as follows:

[0182] S1, the air conditioner is in cooling or dehumidification mode.

[0183] S2. Acquire the humidity S detected by the humidity sensor; control the detection module drive device to drive the detection module to the first position, control the electric heating drive device to drive the electric heating device and the detection module to rotate within their rotation range, and acquire the first temperature data detected by the detection module. Control the detection module drive device to drive the detection module to the second position, control the electric heating drive device to drive the electric heating device and the detection module to rotate within their rotation range, and acquire the second temperature data detected by the detection module.

[0184] S3. Determine the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of several electric heating devices. Determine the first temperature T1(j+180°) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j+180°) of several electric heating devices. Determine the dew point temperature K based on max[T1(j), T1(j+180°), T2(j), T2(j+180°)] and humidity S.

[0185] S4. Determine the angle of the electric heating device corresponding to the minimum value of |K-min[T1(j),T1(j+180°),T2(j),T2(j+180°)]| as the anti-condensation angle.

[0186] S5. The electric heating drive device drives the electric heating device to rotate to the anti-condensation angle.

[0187] In step S5, the anti-condensation angle of the electric heating device ensures that the temperature field around the electric heating device is uniformly distributed, preventing condensation from forming on the electric heating device.

[0188] In some embodiments, during condensation condition detection, the temperature detected by the temperature sensor is acquired when the electric heating drive device rotates from an initial angle to a final angle, or when it rotates from the final angle to the initial angle. This allows for the detection of temperatures at several angles across all rotation ranges of the electric heating device, improving accuracy.

[0189] In some embodiments, when the electric heating device is 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 device is run for a set time according to the changed operating parameters before proceeding to the condensation condition detection step.

[0190] The operating parameters of an air conditioner include fan speed, air deflector position, and compressor operating frequency (related to user-set temperature and ambient temperature).

[0191] Because the air conditioner's operating parameters change, the temperature around the electric heating device changes after operating according to the changed 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 the anti-condensation angle with a uniform temperature field.

[0192] This embodiment adds a driving device to the electric heating unit, allowing the angle of the electric heating unit to be adjusted during actual air conditioner operation. Combined with temperature and humidity sensors installed around the electric heating unit, the uniformity of the temperature field around the unit is monitored. The heating angle with the most uniform temperature field is selected as the anti-condensation angle to avoid or minimize condensation. This embodiment can adjust the angle of the electric heating unit according to the air conditioner's operating status to ensure a uniform temperature field around the unit, preventing the alternating mixing of hot and cold air around the unit from causing condensation and dripping.

[0193] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An air conditioner, characterized in that, The air conditioner includes: Electric heating device; An 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 rotates synchronously with the electric heating device; A detection module drive device is used to drive the detection module to rotate along the axial direction of the electric heating device; The control module is used to detect condensation conditions when the air conditioner is cooling or dehumidifying: it is used to drive the detection module to at least two positions in the axial direction of the electric heating device through the detection module drive device; and it is used to acquire parameter data detected by the detection module at each position when controlling the electric heating drive device to drive the electric heating device to rotate within its rotation range at the at least two positions respectively. Used to enter the condensation condition judgment after the condensation condition detection is completed: Used to obtain the temperature field distribution data around the electric heating device based on the parameter data, determine the angle of the electric heating device corresponding to the most uniform temperature field distribution data around the electric heating device 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 detection module includes a temperature sensor disposed around the electric heating device; The control module is used to detect condensation conditions when the air conditioner is cooling or dehumidifying: when the detection module is in a first axial position of the electric heating device, it controls the electric heating drive device to rotate the electric heating device within its rotation range, and acquires the first temperature data detected by the temperature sensor; when the detection module is in a second axial position of the electric heating device, it controls the electric heating drive device to rotate the electric heating device within its rotation range, and acquires the second temperature data detected by the detection module. Used to enter condensation condition judgment after condensation condition detection is completed: used to determine the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of the plurality of electric heating devices, used to determine the first temperature T1(j+180°) and the second temperature T2(j+180°) detected by the temperature sensor corresponding to the angle W(j+180°) of the plurality of electric heating devices, used to determine the angle of the electric heating device corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| 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.

2. The air conditioner according to claim 1, characterized in that, The detection module includes a humidity sensor and a temperature sensor arranged around the electric heating device, and at least the temperature sensor rotates synchronously with the electric heating device. The control module is used to detect condensation conditions when the air conditioner is cooling or dehumidifying: it is used to acquire the humidity S detected by the humidity sensor. When the detection module is in the first position along the axial direction of the electric heating device, the electric heating drive device is controlled to drive the electric heating device to rotate within its rotation range, and the first temperature data detected by the temperature sensor is obtained. When the detection module is in the second position along the axis of the electric heating device, the electric heating drive device is controlled to drive the electric heating device to rotate within its rotation range, and the second temperature data detected by the detection module is obtained. Used to enter the condensation condition judgment after the condensation condition detection is completed: used to determine the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of the plurality of electric heating devices; used to determine the first temperature T1(j+180°) and the second temperature T2(j+180°) detected by the temperature sensor corresponding to the angle W(j+180°) of the plurality of electric heating devices; used to determine the dew point temperature K according to max[T1(j), T1(j+180°), T2(j), T2(j+180°)] and humidity S; used to determine the angle of the electric heating device corresponding to the minimum value of |K-min[T1(j), T1(j+180°), T2(j), T2(j+180°)]| 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.

3. The air conditioner according to any one of claims 1-2, 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 at the anti-condensation angle, and to run the air conditioner according to the changed operating parameters for a set time before performing condensation condition detection when the operating parameters of the air conditioner change.

4. The air conditioner according to any one of claims 1-2, characterized in that, The control module is used to obtain the current angle of the electric heating device and to select the angle W(j) or W(j+180°) of the electric heating device with a smaller rotation amplitude than the current angle as the anti-condensation angle.

5. A control method for an air conditioner, characterized in that, The air conditioner includes an electric heating device, an electric heating drive device, a detection module, and a detection module drive device; 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 rotates synchronously with the electric heating device; the detection module drive device is used to drive the detection module to rotate along the axial direction of the electric heating device; the control method is: The air conditioner is operating in either cooling or dehumidification mode. Condensation condition detection steps: The detection module driving device drives the detection module to at least two positions in the axial direction of the electric heating device; when the electric heating driving device is controlled to rotate within its rotation range at the at least two positions, the parameter data detected by the detection module at each position is acquired; Condensation condition judgment steps: Based on the parameter data, obtain the temperature field distribution data around the electric heating device, determine the angle of the electric heating device corresponding to the most uniform temperature field distribution data around the electric heating device 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 detection module includes a temperature sensor disposed around the electric heating device, and the control method is as follows: When the air conditioner is cooling or dehumidifying; Condensation condition detection steps: When the detection module is controlled to be in the first position along the axial direction of the electric heating device, and the electric heating drive device is controlled to drive the electric heating device to rotate within its rotation range, the first temperature data detected by the temperature sensor is obtained; when the detection module is controlled to be in the second position along the axial direction of the electric heating device, and the electric heating drive device is controlled to drive the electric heating device to rotate within its rotation range, the second temperature data detected by the detection module is obtained. Condensation condition judgment steps: Determine the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of the electric heating device, determine the first temperature T1(j+180°) and the second temperature T2(j+180°) detected by the temperature sensor corresponding to the angle W(j+180°) of the electric heating device, determine the angle of the electric heating device corresponding to the minimum value of the sum of |T1(j)-T1(j+180°)| and |T2(j)-T2(j+180°)| as the anti-condensation angle, and drive the electric heating device to rotate the electric heating device to the anti-condensation angle.

6. The control method for an air conditioner according to claim 5, characterized in that, The detection module includes a humidity sensor and a temperature sensor disposed around the electric heating device, wherein at least the temperature sensor rotates synchronously with the electric heating device; the control method is as follows: When the air conditioner is cooling or dehumidifying; Condensation condition detection steps: Obtain the humidity S detected by the humidity sensor; control the detection module to be in the first position along the axis of the electric heating device, and control the electric heating drive device to drive the electric heating device to rotate within its rotation range, while obtaining the first temperature data detected by the temperature sensor; control the detection module to be in the second position along the axis of the electric heating device, and control the electric heating drive device to drive the electric heating device to rotate within its rotation range, while obtaining the second temperature data detected by the detection module. Condensation condition judgment steps: Determine the first temperature T1(j) and the second temperature T2(j) detected by the temperature sensor corresponding to the angle W(j) of the electric heating device; determine the temperature T1(j+180°) and the second temperature T2(j+180°) detected by the temperature sensor corresponding to the angle W(j+180°) of the electric heating device; determine the dew point temperature K according to max[T1(j), T1(j+180°), T2(j), T2(j+180°)] and humidity S; determine the angle of the electric heating device corresponding to the minimum value of |K-min[T1(j), T1(j+180°), T2(j), T2(j+180°)]| as the anti-condensation angle; and drive the electric heating device to rotate to the anti-condensation angle.

7. The control method for an air conditioner according to any one of claims 5-6, characterized in that, When the electric heating device is 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 device is run for a set time according to the changed operating parameters before entering the condensation condition detection step.

8. The control method for an air conditioner according to any one of claims 5-6, characterized in that, Obtain the current angle of the electric heating device, and select the angle W(j) or W(j+180°) of the electric heating device with a smaller rotation amplitude than the current angle as the anti-condensation angle.

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