An air conditioner and its control method

Abstract

This invention provides an air conditioner and its control method. The air conditioner includes an electric heating device, an electric heating drive device, a storage module, and a control module. The electric heating drive device drives the electric heating device to rotate. The storage module stores the correspondence between the air conditioner's operating state and the anti-condensation electric heating angle. The control module, when the air conditioner is cooling or dehumidifying, acquires the current operating state of the air conditioner, determines the corresponding anti-condensation electric heating angle based on the current operating state, and controls the electric heating drive device to rotate the electric heating device to the anti-condensation electric heating angle. This invention adjusts the rotation of the electric heating device to the anti-condensation electric heating angle according to the air conditioner's operating state. The anti-condensation electric heating angle is a position determined beforehand through experiments where the electric heating device produces little or no condensation during the air conditioner's operating state. This invention can avoid or reduce the problem of condensation on the electric heating device during the air conditioner's cooling or dehumidifying operation.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and particularly to an air conditioner and its control method. Background Technology

[0002] Most existing air conditioner indoor units have an auxiliary heating function, which means that an electric heating device is installed in the air conditioner indoor unit to assist in heating and enhance the heating effect of the air conditioner.

[0003] Generally, electric heating elements are located near the evaporator of the indoor unit. For example, the electric heating element of a wall-mounted air conditioner's indoor unit is usually installed between the evaporator and the cross-flow fan. When the air conditioner is cooling, indoor air enters through the air inlet of the indoor unit, exchanges heat with the evaporator, and becomes cold air. Some of this cold air passes through the electric heating element and is then blown out of the air outlet by the cross-flow fan. Therefore, the temperature of the electric heating element drops rapidly during air conditioning. Simultaneously, due to the cooling effect, a lot of condensation forms on the evaporator fins. In actual testing, after the air conditioner stops cooling and is turned off, the humidity inside the air duct is very high. Therefore, condensation will form on the surface of the electric heating element after the air conditioner is turned off. During summer use, frequent use of the air conditioner in cooling mode leads to an increasing amount of condensation at the electric heating element. This can cause the condensation to be blown out directly from the electric heating element and drip into the room when the air conditioner's fan speed is high, affecting the user's experience. Furthermore, the long-term presence of condensation on the electric heating element poses a safety hazard, potentially causing oxidation and corrosion of the metal components and shortening its lifespan. It can also easily lead to the electric heating device being in a damp state for a long time, causing mold to grow and resulting in a musty smell in the air blown out by the air conditioner.

[0004] In addition, according to actual experiments, when the air conditioner is in cooling mode, 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] To address the aforementioned technical issues, the existing solutions are as follows:

[0006] 1. After the air conditioner stops cooling, it briefly switches to fan mode, which can raise the temperature of the electric heating element and reduce the possibility of condensation on it. However, the temperature increase is limited and cannot completely eliminate the problem of condensation on the electric heating element.

[0007] 2. When the air conditioner is running in cooling mode, you can control it to shut down via remote control / voice control / APP, etc. The indoor and outdoor fans and compressor will shut down according to the program. After the indoor unit's air deflector closes, the indoor fan will run at a preset low speed, and the electric heating device will turn on briefly to raise its temperature and evaporate the condensate on it. After cooling ends, the electric heating device will turn on again to evaporate the condensate, but this cannot completely prevent the problem of excessive condensate accumulation and dripping when the air conditioner runs in cooling mode for a long time.

[0008] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0009] The purpose of this invention is to provide an air conditioner and its control method, which solves the technical problem that existing air conditioners cause condensation on the electric heating device due to different temperatures around the device during cooling or dehumidification operation.

[0010] This invention provides an air conditioner and its control method:

[0011] An air conditioner, the air conditioner comprising:

[0012] Electric heating device;

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

[0014] The storage module is used to store the correspondence between the air conditioner's operating status and the anti-condensation electric heating angle;

[0015] The control module is used to obtain the current operating status of the air conditioner when the air conditioner is cooling or dehumidifying, to obtain the correspondence between the air conditioner operating status and the anti-condensation electric heating angle stored in the storage module, to obtain the anti-condensation electric heating angle corresponding to the current operating status based on the current operating status of the air conditioner, and to control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation electric heating angle.

[0016] As described above, the air conditioner includes a detection module located around the electric heating device. The control module is used to perform condensation condition detection after the electric heating device rotates to the anti-condensation electric heating angle: acquiring the parameters detected by the detection module; and to enter the condensation condition judgment step after the condensation condition detection is completed: determining, based on the parameters detected by the detection module, that when the condensation condition of the electric heating device is met, controlling the electric heating drive device to drive the electric heating device to rotate a set angle and maintain it at that angle for a set time before entering the condensation condition detection step; and determining, based on the parameters detected by the detection module, that when the condensation condition of the electric heating device is not met, controlling the electric heating device to remain stationary.

[0017] As described above, in the air conditioner, the detection module includes at least two temperature sensors arranged around the electric heating device, and the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes. The control module is used to perform condensation condition detection after the electric heating device rotates to the anti-condensation electric heating angle: to obtain the temperature detected by the temperature sensors; to enter the condensation condition judgment after the condensation condition detection is completed: to determine the maximum temperature Tmax and the minimum temperature Tmin based on the temperature detected by the temperature sensors; to control the electric heating drive device to drive the electric heating device to rotate the electric heating device to a set angle and maintain it at that angle for a set time when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, and then enter the condensation condition detection step; and to control the electric heating device to remain stationary when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature.

[0018] As described above, in the air conditioner, the detection module includes a humidity sensor and at least two temperature sensors arranged around the electric heating device, wherein the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes. The control module is used to perform condensation condition detection after the electric heating device rotates to the anti-condensation electric heating angle: acquiring the humidity S detected by the humidity sensor and acquiring the temperature detected by the temperature sensor; and to enter the condensation condition judgment after the condensation condition detection is completed: determining the maximum temperature Tmax and the minimum temperature Tmin based on the temperature detected by the temperature sensor, and determining the dew point temperature K based on the maximum temperature Tmax and the humidity S; controlling the electric heating drive device to drive the electric heating device to rotate a set angle and maintain it at that angle for a set time when the dew point temperature K is higher than the minimum temperature Tmin, and then entering the condensation condition detection step; and controlling the electric heating device to remain stationary when the dew point temperature K is lower than the minimum temperature Tmin.

[0019] The air conditioner described above includes a timing module for timing after the electric heating device rotates to the anti-condensation electric heating angle; the control module is used to detect condensation conditions after the timing module has timed out for a set period.

[0020] A control method for an air conditioner, the air conditioner including an electric heating device and an electric heating drive device, the electric heating drive device being used to drive the electric heating device to rotate, the control method being as follows:

[0021] When the air conditioner is cooling or dehumidifying, the current operating status of the air conditioner is obtained;

[0022] Obtain the correspondence between the air conditioner's operating status and the anti-condensation electric heating angle;

[0023] The anti-condensation electric heating angle corresponding to the current operating state of the air conditioner is obtained based on the current operating state of the air conditioner.

[0024] The electric heating drive device drives the electric heating device to rotate to the anti-condensation electric heating angle.

[0025] The control method for the air conditioner described above includes a detection module located around the electric heating device, and the control method is as follows:

[0026] After the electric heating device is rotated to the anti-condensation electric heating angle;

[0027] Condensation condition detection steps: Obtain the parameters detected by the detection module;

[0028] Condensation condition judgment step: When the condensation condition of the electric heating device is met according to the parameters detected by the detection module, the electric heating drive device drives the electric heating device to rotate a set angle and maintain it at that angle for a set time, and then enters the condensation condition detection step; when the condensation condition of the electric heating device is not met according to the parameters detected by the detection module, the electric heating device remains stationary.

[0029] The control method for the air conditioner described above includes a detection module comprising at least two temperature sensors disposed around the electric heating device, wherein the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes; the control method is as follows:

[0030] After the electric heating device is rotated to the anti-condensation electric heating angle;

[0031] Condensation condition detection steps: Obtain the temperature detected by the temperature sensor;

[0032] Condensation condition judgment steps: Determine the maximum temperature Tmax and minimum temperature Tmin based on the temperature detected by the temperature sensor; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, the electric heating drive device drives the electric heating device to rotate a set angle and maintain it at that angle for a set time, and then enters the condensation condition detection step; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, the electric heating device does not move.

[0033] The control method for the air conditioner described above includes a detection module comprising a humidity sensor and at least two temperature sensors disposed around the electric heating device, wherein the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes; the control method is as follows:

[0034] After the electric heating device is rotated to the anti-condensation electric heating angle;

[0035] Condensation condition detection steps: Obtain the humidity S detected by the humidity sensor, and obtain the temperature detected by the temperature sensor;

[0036] Condensation condition judgment steps: Determine the maximum temperature Tmax and minimum temperature Tmin based on the temperature detected by the temperature sensor, and determine the dew point temperature K based on the maximum temperature Tmax and humidity S; when the dew point temperature K is higher than the minimum temperature Tmin, the electric heating drive device drives the electric heating device to rotate a set angle and maintain it at that angle for a set time, and then enters the condensation condition detection step; when the dew point temperature K is lower than the minimum temperature Tmin, the electric heating device does not move.

[0037] As described above, the air conditioner performs condensation condition detection after the electric heating device rotates to the anti-condensation electric heating angle set time.

[0038] 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 storage module, and a control module. The electric heating drive device drives the electric heating device to rotate. The storage module stores the correspondence between the air conditioner's operating state and the anti-condensation electric heating angle. The control module, during cooling or dehumidification operation, acquires the current operating state of the air conditioner, obtains the correspondence between the air conditioner's operating state and the anti-condensation electric heating angle stored in the storage module, determines the anti-condensation electric heating angle corresponding to the current operating state, and controls the electric heating drive device to drive the electric heating device to rotate to the anti-condensation electric heating angle. This invention adjusts the rotation of the electric heating device to the anti-condensation electric heating angle according to the air conditioner's operating state. The anti-condensation electric heating angle is a position determined beforehand through experiments where the electric heating device produces little or no condensation under the corresponding air conditioner operating state. Therefore, this invention can avoid or reduce the problem of condensation occurring on the electric heating device during the cooling or dehumidification process of the air conditioner.

[0039] This invention includes an electric heating device and an electric heating drive device. The electric heating drive device drives the electric heating device to rotate. The control method of the air conditioner is as follows: When the air conditioner is cooling or dehumidifying, a condensation condition detection step is performed: the detection module drive device drives the detection module to rotate around the electric heating device, acquiring parameters detected by the detection module at at least two positions; a condensation condition judgment step is performed: based on the parameters detected by the detection module, if the condensation condition of the electric heating device is met, the electric heating drive device drives the electric heating device to rotate by a set angle and maintains it at that angle for a set time, before resuming the condensation condition detection step; if the parameters detected by the detection module do not meet the condensation condition, the electric heating device remains stationary. This invention adjusts the rotation of the electric heating device to an anti-condensation heating angle according to the air conditioner's operating state. The anti-condensation heating angle is a position determined in advance through experiments where the electric heating device does not produce or produces minimal condensation under the corresponding air conditioner operating state. Therefore, this invention can avoid or reduce the problem of condensation occurring on the electric heating device during the cooling or dehumidifying process of the air conditioner.

[0040] 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

[0041] Figure 1 This is a schematic diagram of an air conditioner indoor unit according to a specific embodiment of the present invention.

[0042] Figure 2 This is a schematic diagram of an electric heating device according to a specific embodiment of the present invention.

[0043] Figure 3 This is a flowchart of a specific embodiment of the present invention.

[0044] Figure 4 This is a schematic diagram of the indoor unit of an air conditioner according to a specific embodiment of the present invention.

[0045] Figure 5 This is a schematic diagram of the electric heating device in a specific embodiment of the present invention.

[0046] Figure 6 This is a schematic diagram of the electric heating device and detection module in a specific embodiment of the present invention.

[0047] Figure 7-9 This is a flowchart of a specific embodiment two of the present invention.

[0048] In the picture,

[0049] 1. Evaporator;

[0050] 2. Electric heating device;

[0051] 3. Cross-flow fan;

[0052] 4. Detection module;

[0053] 5. Electric heating drive device. Detailed Implementation

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] Example 1

[0059] like Figure 1-3 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.

[0060] The air conditioner includes an electric heating device 2 and an electric heating drive device 5, which is used to drive the electric heating device 2 to rotate.

[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 (which are related to ambient temperature and user-set temperature), can cause inconsistent temperature distribution around the electric heating device when it is at the same angle.

[0063] During air conditioner cooling or dehumidifying operation, 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 causes uneven temperature distribution, condensation is likely to occur on the electric heating element 2. Conversely, if the electric heating element is positioned at an angle that ensures uniform temperature distribution, condensation can be avoided or reduced. Therefore, in this embodiment, the operating state of the air conditioner and the position where condensation is minimal or nonexistent under this operating state are determined experimentally as the anti-condensation angle for the electric heating element. When the air conditioner is operating under this state, the electric heating element is directly driven to rotate to the aforementioned position where condensation is minimal or nonexistent – ​​the anti-condensation angle – via the electric heating drive device. This allows the electric heating element to quickly enter the anti-condensation state, preventing condensation. In this embodiment, the electric heating element can directly reach the anti-condensation position without needing to sequentially rotate the set angle to search for the anti-condensation angle. This results in high anti-condensation efficiency and avoids the noise generated by repeated and prolonged rotation of the electric heating drive device.

[0064] Specifically, the air conditioner includes an electric heating device, an electric heating drive device, a storage module, and a control module.

[0065] 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.

[0066] 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.

[0067] 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. That is, the electric heating drive device 5 drives the electric heating device 2 to rotate forward from the initial angle to the final angle, which is equivalent to one revolution within the rotation range. Conversely, the electric heating drive device 5 drives the electric heating device 2 to rotate in the reverse direction from the final angle to the initial angle, which is also equivalent to one revolution within the rotation range. This method avoids the tangling of the electric heating wire.

[0068] The storage module is used to store the correspondence between the air conditioner's operating status and the anti-condensation electric heating angle.

[0069] The operating status of the air conditioner includes at least the operating mode (cooling or dehumidification), fan speed, air guide vane position, and compressor operating frequency (related to ambient temperature and user-set temperature). In some embodiments, it may also include the opening degree of the electronic expansion valve.

[0070] In some embodiments, the correspondence between the air conditioner's operating state and the anti-condensation electric heating angle can be a functional relationship determined in advance through experiments.

[0071] In some embodiments, the correspondence between the air conditioner's operating status and the anti-condensation electric heating angle can also be a tabular correspondence. In this tabular correspondence, to simplify the procedure, parameters with fixed values, such as compressor frequency, are generally taken as a range. For example, the correspondence table in cooling mode is shown below:

[0072] Air conditioner operating status Angle of electric heating device Compressor frequency range 1, fan speed setting 1, air guide plate position 1 A degree Compressor frequency range 1, fan speed setting 2, air guide plate position 1 B degree Compressor frequency range 1, fan speed setting 1, air guide plate position 2 C degree Compressor frequency range 1, fan speed setting 2, air guide plate position 2 D degree Compressor frequency range 2, fan speed setting 1, air guide plate position 1 E degree Compressor frequency range 2, fan speed setting 1, air guide plate position 2 F degree Compressor frequency range 2, fan speed setting 2, air guide plate position 1 G degree Compressor frequency range 2, fan speed setting 2, air guide plate position 2 H degree

[0073] The control module is used to obtain the current operating status of the air conditioner when it is cooling or dehumidifying, to obtain the correspondence between the air conditioner operating status and the anti-condensation electric heating angle stored in the storage module, to obtain the anti-condensation electric heating angle corresponding to the current operating status based on the current operating status of the air conditioner, and to control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation electric heating angle.

[0074] Specifically, the anti-condensation electric heating angle refers to the angle of the electric heating device.

[0075] In this embodiment, the air conditioner adjusts the electric heating device to the anti-condensation electric heating angle corresponding to the operating state according to the air conditioner's operating state, which can avoid or reduce condensation generated by the electric heating device when the air conditioner is running.

[0076] The control method for air conditioners is as follows:

[0077] When the air conditioner is cooling or dehumidifying, obtain the current operating status of the air conditioner;

[0078] Obtain the correspondence between the air conditioner's operating status and the anti-condensation electric heating angle;

[0079] The anti-condensation electric heating angle corresponding to the current operating status of the air conditioner is obtained based on the current operating status of the air conditioner.

[0080] The electric heating drive unit drives the electric heating device to rotate to the anti-condensation electric heating angle.

[0081] like Figure 3 As shown, the control method of the air conditioner in this embodiment is as follows:

[0082] S1, the air conditioner is in cooling or dehumidification mode.

[0083] S2. Obtain the current operating status of the air conditioner.

[0084] S3. Obtain the correspondence between the air conditioner's operating status and the anti-condensation electric heating angle.

[0085] S4. Obtain the anti-condensation electric heating angle corresponding to the current operating status of the air conditioner.

[0086] S5. The electric heating drive device drives the electric heating device to rotate to the anti-condensation electric heating angle.

[0087] S6. Obtain the current operating status of the air conditioner. If the operating status of the air conditioner changes, proceed to step S3. Otherwise, continue to step S5.

[0088] Example 2

[0089] This embodiment adds a detection module to the first embodiment. When the electric heating device is at the anti-condensation angle, in order to further avoid condensation, the detection module also detects the parameters around the electric heating device. When the parameters around the electric heating device meet the condensation conditions, the angle of the electric heating device is adjusted. Generally, a slight adjustment is sufficient to avoid condensation from the electric heating device. When the parameters around the electric heating device do not meet the condensation conditions, the electric heating device is kept stationary.

[0090] like Figure 4-6As 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.

[0091] The electric heating device 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 device 2 to rotate.

[0092] In this embodiment, a detection module 4 is arranged around the electric heating device 2. The air conditioner also includes an electric heating drive device 5, which is used to drive the electric heating device 2 to rotate.

[0093] The air conditioner also includes a timing module for timing after the electric heating unit rotates to the anti-condensation electric heating angle.

[0094] The control module is used to detect condensation conditions after the electric heating device rotates to the anti-condensation heating angle and after the timing module has set a time. It acquires the parameters detected by the detection module and then proceeds to the condensation condition judgment step after the condensation condition detection is completed. Based on the parameters detected by the detection module, if the condensation conditions of the electric heating device are met, the control module controls the electric heating drive to rotate the electric heating device to a set angle and maintain it at that angle for a set time before resuming the condensation condition detection step. If, based on the parameters detected by the detection module, the electric heating device does not meet the condensation conditions, the control module keeps the electric heating device stationary.

[0095] When the air conditioner is cooling or dehumidifying, the electric heating device is in the anti-condensation angle and remains stationary. At this time, the electric heating device produces little or no condensation. To ensure the anti-condensation effect, after the electric heating device has been in the anti-condensation angle for a set time, the parameters detected by the detection module 4 are used to determine whether condensation has occurred. The detection module 4 detects parameters and determines whether the condensation conditions of the electric heating device 2 are met. If the parameters detected by the detection module 4 meet the condensation conditions, there is a risk of condensation, and the angle of the electric heating device 2 needs to be adjusted. The electric heating drive device 5 drives the electric heating device 2 to rotate to the set angle and maintains it at that angle for a set time. Then, the detection module 4 continues to detect parameters. If the parameters detected by the detection module 4 do not meet the condensation conditions, there is no risk of condensation, and the electric heating device remains stationary.

[0096] The control method for air conditioners is as follows:

[0097] The electric heating device rotates to the anti-condensation electric heating angle set time;

[0098] Condensation condition detection steps: Obtain the parameters detected by the detection module;

[0099] Condensation condition judgment steps: When the parameters detected by the detection module determine that the condensation condition of the electric heating device is met, the electric heating drive device drives the electric heating device to rotate at a set angle and maintains it at that angle for a set time before proceeding to the condensation condition detection step; when the parameters detected by the detection module determine that the condensation condition of the electric heating device is not met, the electric heating device remains stationary.

[0100] like Figure 7 As shown, the control method of the air conditioner in this embodiment is as follows:

[0101] S1. The electric heating device rotates to the anti-condensation electric heating angle set time.

[0102] S2, Detection parameters of the detection module.

[0103] S3. Determine whether the condensation conditions of the electric heating device are met based on the parameters detected by the detection module. If the condensation conditions of the electric heating device are met, proceed to step S4; otherwise, proceed to step S5.

[0104] S4. The electric heating drive device drives the electric heating device to rotate at a set angle and maintains it at that angle for a set time, then proceeds to step S2.

[0105] S5. The electric heating device remains stationary, and the air conditioner continues to operate according to the set settings.

[0106] In step S5, when the angle of the electric heating device is specified, the temperature field around the electric heating device is uniformly distributed, which will not cause condensation on the electric heating device. Therefore, the electric heating device does not move, and the air conditioner continues to operate according to the set state.

[0107] In steps S1-S5, the current operating status of the air conditioner is acquired in real time. When the operating status changes, the anti-condensation electric heating angle of the electric heating device is adjusted according to the operating status.

[0108] In some embodiments, the detection module 4 includes a temperature sensor located around the electric heating device.

[0109] Specifically, the detection module 4 includes at least two temperature sensors positioned around the electric heating device. The planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes. The temperature sensors are at a certain distance from the electric heating device and are used to measure the air temperature around the electric heating device.

[0110] In some embodiments, the detection module 4 includes two temperature sensors located in any two of the spaces above, below, left, and right of the electric heating device 2.

[0111] In some embodiments, the detection module 4 includes three temperature sensors located in any three spaces: the upper space, the lower space, the left space, and the right space of the electric heating device 2.

[0112] In some embodiments, the detection module 4 includes four temperature sensors located in the upper space, lower space, left space and right space of the electric heating device 2.

[0113] Of course, the more temperature sensors there are, the better the anti-condensation effect.

[0114] In some embodiments, the air conditioner includes a detection module mounting bracket, on which a temperature sensor is mounted. The mounting bracket can be fixed inside the air conditioner or fixed to an electric heating device and rotate synchronously with the electric heating device.

[0115] The control module is used to detect condensation conditions after the electric heating device rotates to the anti-condensation electric heating angle: to obtain the temperature detected by the temperature sensor; to enter the condensation condition judgment after the condensation condition detection is completed: to determine the maximum temperature Tmax and minimum temperature Tmin based on the temperature detected by the temperature sensor; to control the electric heating drive device to drive the electric heating device to rotate to the set angle and maintain it at the set angle for the set time when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, and then enter the condensation condition detection step; and to control the electric heating device to remain stationary when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature.

[0116] After the electric heating device rotates to the anti-condensation heating angle set time, temperature sensors at multiple locations detect the temperature at multiple locations. Based on the temperature detected by the temperature sensors, the maximum temperature Tmax and the minimum temperature Tmin are determined. When the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, there is a risk of condensation, and the angle of the electric heating device 2 needs to be adjusted. The electric heating drive device 5 drives the electric heating device 2 to rotate to the set angle and maintains it at that angle for the set time, adjusting the windward angle of the electric heating device. Then, the temperature sensor detection process continues. When the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, the temperature around the electric heating device tends to be uniform, and there is no risk of condensation. The electric heating device remains stationary. Otherwise, the electric heating device continues to rotate in the above manner, adjusting the windward angle of the electric heating device and detecting the temperature, until the electric heating device rotates to the angle where the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, and there is no risk of condensation.

[0117] The set temperature is any value of 1 ± 0.3℃, preferably 1℃.

[0118] The control method for air conditioners is as follows:

[0119] The electric heating device rotates to the anti-condensation electric heating angle set time;

[0120] Condensation condition detection steps: Obtain the temperature detected by the temperature sensor;

[0121] Condensation condition judgment steps: Determine the maximum temperature Tmax and minimum temperature Tmin based on the temperature detected by the temperature sensor; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, the electric heating drive device drives the electric heating device to rotate at a set angle and maintains it at that angle for a set time, and then enters the condensation condition detection step; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, the electric heating device does not move.

[0122] like Figure 8 As shown, the control method of the air conditioner in this embodiment is as follows:

[0123] S1. The electric heating device rotates to the anti-condensation electric heating angle set time.

[0124] S2, Temperature sensor detects temperature.

[0125] S3. Determine the maximum temperature Tmax and minimum temperature Tmin based on the temperature detected by the temperature sensor, and calculate the difference between the maximum temperature and the minimum temperature Tmin.

[0126] S4. If the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, proceed to step S5; otherwise, proceed to step S6.

[0127] S5. The electric heating drive device drives the electric heating device to rotate at a set angle and maintains it at that angle for a set time, then proceeds to step S2.

[0128] S6. The electric heating device remains stationary, and the air conditioner continues to operate according to the set settings.

[0129] In step S6, when the electric heating device is at the specified angle, the temperature field around the electric heating device is uniformly distributed, which will not cause condensation on the electric heating device. Therefore, the electric heating device remains stationary, and the air conditioner continues to operate according to the set state.

[0130] In steps S1-S5, the current operating status of the air conditioner is acquired in real time. When the operating status changes, the anti-condensation electric heating angle of the electric heating device is adjusted according to the operating status.

[0131] This embodiment adds a drive mechanism to the electric heating device, allowing it to adjust its angle according to system settings during actual air conditioner operation. Temperature sensors around the heating device monitor the uniformity of the surrounding temperature field. When the temperature field reaches a set deviation range, the heating device remains stationary at a fixed angle. When the temperature field exceeds the set deviation range, the heating device rotates until its position ensures a uniform temperature field around it. This embodiment, based on its anti-condensation angle, allows the heating device to adjust its angle according to the air conditioner's operating status, ensuring a uniform temperature field around the device and preventing condensation and dripping caused by the alternating mixing of hot and cold air.

[0132] In some embodiments, the detection module 4 includes a temperature sensor and a humidity sensor located around the electric heating device.

[0133] Specifically, detection module 4 includes a humidity sensor and at least two temperature sensors positioned around the electric heating device. The planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes. The temperature sensors are positioned at a certain distance from the electric heating device and are used to measure the air temperature around the device. The humidity sensors are also positioned at a certain distance from the electric heating device and are used to measure the humidity around it. Only one humidity sensor is required.

[0134] In some embodiments, the detection module 4 includes two temperature sensors located in any two of the spaces above, below, left, and right of the electric heating device 2.

[0135] In some embodiments, the detection module 4 includes three temperature sensors located in any three spaces: the upper space, the lower space, the left space, and the right space of the electric heating device 2.

[0136] In some embodiments, the detection module 4 includes four temperature sensors located in the upper space, lower space, left space and right space of the electric heating device 2.

[0137] Of course, the more temperature sensors there are, the better the anti-condensation effect.

[0138] In some embodiments, the air conditioner includes a detection module mounting bracket, on which a temperature sensor is mounted. The mounting bracket can be fixed inside the air conditioner or fixed to an electric heating device and rotate synchronously with the electric heating device.

[0139] There are no restrictions on the installation location of the humidity sensor. To simplify the structure, the humidity sensor can also be installed on a mounting bracket.

[0140] The control module is used to perform condensation condition detection after the electric heating device rotates to the anti-condensation electric heating angle set time; to acquire the humidity S detected by the humidity sensor and the temperature detected by the temperature sensor; to enter the condensation condition judgment after the condensation condition detection is completed; to determine the maximum temperature Tmax and minimum temperature Tmin based on the temperature detected by the temperature sensor, and to determine the dew point temperature K based on the maximum temperature Tmax and humidity S; to control the electric heating drive device to drive the electric heating device to rotate to the set angle and maintain it at the set angle for the set time when the dew point temperature K is higher than the minimum temperature Tmin, and then enter the condensation condition detection step; and to control the electric heating device to remain stationary when the dew point temperature K is lower than the minimum temperature Tmin.

[0141] After the electric heating device rotates to the anti-condensation electric heating angle set time, the humidity sensor detects the humidity, and multiple temperature sensors detect the temperature at multiple locations. Based on the temperature detected by the temperature sensors, the maximum temperature Tmax and the minimum temperature Tmin are determined. Based on the maximum temperature Tmax and the humidity S, the dew point temperature K is determined. When the dew point temperature K is higher than the minimum temperature Tmin, there is a risk of condensation, and the angle of the electric heating device 2 needs to be adjusted. The electric heating drive device 5 drives the electric heating device 2 to rotate to the set angle and maintains it at that angle for the set time, adjusting the windward angle of the electric heating device. Then, the temperature sensor continues to detect the temperature. When the dew point temperature K is lower than the minimum temperature Tmin, the temperature around the electric heating device tends to be uniform, and there is no risk of condensation. The electric heating device does not move, and the air conditioner continues to operate according to the set state. Otherwise, the electric heating device continues to rotate in the above manner, adjusting the windward angle of the electric heating device and detecting the temperature and humidity, until the electric heating device rotates to the angle where the dew point temperature K is lower than the minimum temperature Tmin, and there is no risk of condensation.

[0142] The control method for air conditioners is as follows:

[0143] After the electric heating device rotates to the anti-condensation electric heating angle set time;

[0144] Condensation condition detection steps: Obtain the humidity S detected by the humidity sensor, and obtain the temperature detected by the temperature sensor;

[0145] Condensation condition judgment steps: Determine the maximum temperature Tmax and minimum temperature Tmin based on the temperature detected by the temperature sensor, and determine the dew point temperature K based on the maximum temperature Tmax and humidity S; when the dew point temperature K is higher than the minimum temperature Tmin, the electric heating drive device drives the electric heating device to rotate at a set angle and maintains it at that angle for a set time, and then enters the condensation condition detection step; when the dew point temperature K is lower than the minimum temperature Tmin, the electric heating device does not move.

[0146] like Figure 9 As shown, the control method of the air conditioner in this embodiment is as follows:

[0147] S1. The electric heating device rotates to the anti-condensation electric heating angle set time.

[0148] S2, the humidity sensor detects the humidity S, and the temperature sensor detects the temperature.

[0149] S3. Determine the maximum temperature Tmax and minimum temperature Tmin based on the temperature detected by the temperature sensor, and determine the dew point temperature K based on the maximum temperature Tmax and humidity S.

[0150] S4. If the dew point temperature K is higher than the minimum temperature Tmin, proceed to step S5; otherwise, proceed to step S6.

[0151] S5. The electric heating drive device drives the electric heating device to rotate at a set angle and maintains it at that angle for a set time, then proceeds to step S2.

[0152] S6. The electric heating device remains stationary, and the air conditioner continues to operate according to the set settings.

[0153] In step S6, when the electric heating device is at the specified angle, the temperature field around the electric heating device is uniformly distributed, which will not cause condensation on the electric heating device. Therefore, the electric heating device remains stationary, and the air conditioner continues to operate according to the set state.

[0154] In steps S1-S5, the current operating status of the air conditioner is acquired in real time. When the operating status changes, the anti-condensation electric heating angle of the electric heating device is adjusted according to the operating status.

[0155] This embodiment adds a driving device to the electric heating unit, allowing it to adjust its angle according to system settings during actual air conditioner operation. Temperature and humidity sensors located around the electric heating unit monitor the uniformity of the temperature field. When the temperature field reaches a set deviation range, the electric heating unit remains stationary at a fixed angle. When the temperature field exceeds the set deviation range, the electric heating unit rotates until its position ensures a uniform temperature field around it. This embodiment, based on its anti-condensation angle, allows the electric heating unit to adjust its angle according to the air conditioner's operating status, ensuring a uniform temperature field around the unit and preventing condensation and dripping caused by the alternating mixing of hot and cold air.

[0156] 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 by comprising: The air conditioner comprises: An electric heating device; An electric heating driving device for driving the electric heating device to rotate; A storage module for storing a corresponding relationship between an air conditioner operating state and an anti-condensation electric heating angle, the air conditioner operating state comprising an operating mode, a wind speed, a position of a deflector and a compressor frequency; A control module for, when the air conditioner is operating in a refrigeration or dehumidification mode, obtaining a current operating state of the air conditioner, obtaining the corresponding relationship between the air conditioner operating state and the anti-condensation electric heating angle stored in the storage module, obtaining the anti-condensation electric heating angle corresponding to the current operating state according to the current operating state of the air conditioner, and controlling the electric heating driving device to drive the electric heating device to rotate to the anti-condensation electric heating angle.

2. The air conditioner according to claim 1, wherein The air conditioner comprises a detection module arranged around the electric heating device, and the control module is configured to, after the electric heating device rotates to the anti-condensation electric heating angle, perform condensation condition detection by obtaining parameters detected by the detection module; enter condensation condition judgment after the condensation condition detection is completed, control the electric heating device to rotate a set angle and maintain at the angle for a set time when the condensation condition of the electric heating device is met according to the parameters detected by the detection module, and then return to the condensation condition detection step, and control the electric heating device to be stationary when the condensation condition of the electric heating device is not met according to the parameters detected by the detection module.

3. The air conditioner of claim 2, wherein The detection module comprises at least two temperature sensors arranged around the electric heating device, and planes formed by the at least two temperature sensors and a rotation axis of the electric heating device are different planes; the control module is configured to, after the electric heating device rotates to the anti-condensation electric heating angle, perform condensation condition detection by obtaining temperatures detected by the temperature sensors; enter condensation condition judgment after the condensation condition detection is completed, determine a maximum temperature Tmax and a minimum temperature Tmin according to the temperatures detected by the temperature sensors; control the electric heating driving device to drive the electric heating device to rotate a set angle and maintain at the angle for a set time when a difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than a set temperature, and then return to the condensation condition detection step, and control the electric heating device to be stationary when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature.

4. The air conditioner of claim 2, wherein The detection module comprises a humidity sensor and at least two temperature sensors arranged around the electric heating device, and planes formed by the at least two temperature sensors and a rotation axis of the electric heating device are different planes; the control module is configured to, after the electric heating device rotates to the anti-condensation electric heating angle; perform condensation condition detection by obtaining humidity S detected by the humidity sensor and temperatures detected by the temperature sensors; The control method comprises the following steps: detecting the temperature of the air conditioner; determining the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor; determining the dew point temperature K according to the maximum temperature Tmax and the humidity S; when the dew point temperature K is higher than the minimum temperature Tmin, controlling the electric heating driving device to drive the electric heating device to rotate a set angle and maintain at the angle for a set time, and then returning to the condensation condition detection step; when the dew point temperature K is lower than the minimum temperature Tmin, controlling the electric heating device to be stationary.

5. The air conditioner according to any one of claims 2 to 4, wherein The air conditioner comprises a timing module for timing after the electric heating device rotates to the anti-condensation electric heating angle; the control module is used for detecting the condensation condition after the timing module times for a set time.

6. A control method of an air conditioner, characterized by, The air conditioner comprises an electric heating device and an electric heating driving device for driving the electric heating device to rotate, and the control method comprises the following steps: When the air conditioner is in cooling or dehumidifying operation, the current operation state of the air conditioner is obtained; The corresponding relationship between the air conditioner operation state and the anti-condensation electric heating angle is obtained, and the air conditioner operation state comprises the operation mode, the air speed, the position of the air deflector and the compressor frequency; The anti-condensation electric heating angle corresponding to the current operation state is obtained according to the current operation state of the air conditioner; The electric heating driving device drives the electric heating device to rotate to the anti-condensation electric heating angle.

7. The control method of the air conditioner according to claim 6, wherein The air conditioner comprises a detection module located around the electric heating device, and the control method comprises the following steps: After the electric heating device rotates to the anti-condensation electric heating angle; The condensation condition detection step: obtaining the parameters detected by the detection module; The condensation condition judgment step: according to the parameters detected by the detection module, when the condensation condition of the electric heating device is met, the electric heating driving device drives the electric heating device to rotate a set angle and maintain at the angle for a set time, and then returns to the condensation condition detection step; according to the parameters detected by the detection module, when the condensation condition of the electric heating device is not met, the electric heating device is stationary.

8. The control method of the air conditioner according to claim 7, characterized by, The detection module comprises at least two temperature sensors arranged around the electric heating device, and the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes; the control method comprises the following steps: After the electric heating device rotates to the anti-condensation electric heating angle; The condensation condition detection step: obtaining the temperature detected by the temperature sensor; The condensation condition judgment step: determining the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than a set temperature, the electric heating driving device drives the electric heating device to rotate a set angle and maintain at the angle for a set time, and then returns to the condensation condition detection step; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, the electric heating device is stationary.

9. The control method of the air conditioner according to claim 7, characterized by, The detection module comprises a humidity sensor and at least two temperature sensors arranged around the electric heating device, the at least two temperature sensors and the rotation axis of the electric heating device form different planes; the control method is: After the electric heating device rotates to the anti-condensation electric heating angle, The condensation condition detection step: obtaining the humidity S detected by the humidity sensor, and obtaining the temperature detected by the temperature sensor; The condensation condition judgment step: determining the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor, determining the dew point temperature K according to the maximum temperature Tmax and the humidity S; when the dew point temperature K is higher than the minimum temperature Tmin, the electric heating driving device drives the electric heating device to rotate by a set angle and maintain at the angle for a set time, and then enters the condensation condition detection step again; when the dew point temperature K is lower than the minimum temperature Tmin, the electric heating device is not moved.

10. The air conditioner according to any one of claims 7 to 9, characterized by: After the electric heating device rotates to the anti-condensation electric heating angle for a set time, the condensation condition detection is performed.

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