Air conditioner and control method thereof

Abstract

The application provides an air conditioner and a control method thereof, the air conditioner comprising an electric heating device, an electric heating driving device, a detection module and a control module; firstly, the initial position of the electric heating device is detected for condensation condition, the temperature field distribution around the electric heating device is detected by rotating the electric heating device to drive the detection module to rotate, then the condensation condition is judged to determine whether there is a condensation risk when the electric heating device is at the initial position, when there is a condensation risk, the electric heating device is driven to rotate by a set angle and maintained at the angle for a set time, and the position after the initial position is rotated by the set angle is taken as the initial position for the next condensation condition detection, the condensation condition is continuously judged until the electric heating device finds a condensation prevention position, at which position the temperature field around the electric heating device is uniform, and the condensation prevention position of the electric heating device determined by the application can avoid or reduce the condensation problem 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 decreases rapidly. At the same time, due to the cooling of the air conditioner, a lot of condensed water is condensed 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 can 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 can be blown out directly and fall into the indoor space, 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 can 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 growth and causing the air blown out by the air conditioner to have a moldy smell.

[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 inside and outside 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 set in advance, 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, but the problem of excessive condensed water accumulation and dripping 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 of condensed water generated on an electric heating device due to different temperatures around the electric heating device during refrigeration or dehumidification operation of the air conditioner.

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

[0011] An air conditioner, comprising:

[0012] An electric heating device;

[0013] An electric heating driving device for driving the electric heating device to rotate;

[0014] A detection module located around the electric heating device and rotating synchronously with the electric heating device;

[0015] A control module for detecting a condensation condition when the air conditioner is in refrigeration or dehumidification operation; for controlling the electric heating driving device to drive the electric heating device to rotate to at least one relative position different from an initial position; and for obtaining parameters detected by the detection module when the electric heating device is at the initial position and each relative position;

[0016] for entering a condensation condition judgment after the condensation condition detection is completed; for controlling the electric heating driving device to drive the electric heating device to rotate a set angle on the basis of the initial position and maintain at the angle for a set time when it is judged according to the parameters detected by the detection module that the condensation condition of the electric heating device is met; for taking the position after the initial position is rotated the set angle as the initial position for the next condensation condition detection and entering the condensation condition detection; and for controlling the electric heating driving device to drive the electric heating device to rotate to the initial position when it is judged according to the parameters detected by the detection module that the condensation condition of the electric heating device is not met.

[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, when the air conditioner is operating in a cooling or dehumidifying mode, perform a condensation condition detection, control the electric heating driving device to drive the electric heating device to rotate to at least one relative position different from an initial position, and acquire the temperature detected by the temperature sensor when the electric heating device is at the initial position and each relative position.

[0019] The control module is configured to, after the condensation condition detection is completed, enter a condensation condition judgment, determine a maximum temperature Tmax and a minimum temperature Tmin according to the temperature detected by the temperature sensor, control the electric heating driving device to drive the electric heating device to rotate by a set angle based on the initial position and maintain at the angle for a set time when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than a set temperature, take the position of the initial position after rotating by the set angle as the initial position for the next condensation condition detection, and enter the condensation condition detection, and control the electric heating driving device to drive the electric heating device to rotate to the initial position when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature.

[0020] The air conditioner as described above, wherein the detection module comprises a temperature sensor arranged around the electric heating device;

[0021] The control module is configured to, when the air conditioner is operating in a cooling or dehumidifying mode, perform a condensation condition detection, control the electric heating driving device to drive the electric heating device to rotate to at least one relative position different from an initial position, and acquire the temperature detected by the temperature sensor when the electric heating device is at the initial position and each relative position.

[0022] The control module is configured to, after the condensation condition detection is completed, enter a condensation condition judgment, determine a maximum temperature Tmax and a minimum temperature Tmin according to the temperature detected by the temperature sensor, determine a dew point temperature K according to the maximum temperature Tmax and the humidity S, control the electric heating driving device to drive the electric heating device to rotate by a set angle based on the initial position and maintain at the angle for a set time when the dew point temperature K is higher than the minimum temperature Tmin, take the position of the initial position after rotating by the set angle as the initial position for the next condensation condition detection, and enter the condensation condition detection, and control the electric heating driving device to drive the electric heating device to rotate to the initial position when the dew point temperature K is lower than the minimum temperature Tmin.

[0023] The air conditioner as described above, the control module is used to judge whether the operation parameter of the air conditioner changes after the electric heating device rotates to the initial position, and is used to control the air conditioner to run according to the changed operation parameter for a set time and then enter the condensation condition detection when the operation parameter of the air conditioner changes.

[0024] The air conditioner as described above, the control module is used to enter the condensation condition detection in time after the electric heating device rotates to the initial position.

[0025] A control method of an air conditioner, the air conditioner comprising an electric heating device and an electric heating driving device, the electric heating driving device being used to drive the electric heating device to rotate, a detection module being arranged around the electric heating device and rotating synchronously with the electric heating device, the control method comprising:

[0026] When the air conditioner runs in refrigeration or dehumidification;

[0027] A condensation condition detection step: the electric heating driving device drives the electric heating device to rotate to at least one relative position distinguished from the initial position; the detection module detects parameters when the electric heating device is in the initial position and each relative position;

[0028] A condensation condition judgment step: according to the parameters detected by the detection module, when the electric heating device condensation condition is met, the electric heating driving device drives the electric heating device to rotate a set angle on the basis of the initial position and maintain at the angle for a set time, the position after rotating the set angle from the initial position is taken as the initial position for the next condensation condition detection, and the condensation condition detection step is entered; according to the parameters detected by the detection module, when the electric heating device condensation condition is not met, the electric heating driving device drives the electric heating device to rotate to the initial position.

[0029] The control method of the air conditioner as described above, the detection module comprising a temperature sensor arranged around the electric heating device, the control method comprising:

[0030] When the air conditioner runs in refrigeration or dehumidification;

[0031] A condensation condition detection step: the electric heating driving device drives the electric heating device to rotate to at least one relative position distinguished from the initial position; the temperature sensor detects the temperature when the electric heating device is in the initial position and each relative position;

[0032] The condensation condition judging 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 the set temperature, the electric heating driving device drives the electric heating device to rotate a set angle on the basis of the initial position and maintain at the angle for a set time, taking the position after rotating the set angle from the initial position as the initial position for the next condensation condition detection, and entering 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 driving device drives the electric heating device to rotate to the initial position.

[0033] The control method of the air conditioner as described above, the detection module comprising a humidity sensor and a temperature sensor arranged around the electric heating device, at least the temperature sensor rotating synchronously with the electric heating device, the control method being:

[0034] When the air conditioner is running in refrigeration or dehumidification;

[0035] The condensation condition detection step: the electric heating driving device drives the electric heating device to rotate to at least one relative position distinguished from the initial position; the temperature sensor detects the temperature when the electric heating device is at the initial position and each relative position; the humidity sensor detects the humidity;

[0036] The condensation condition judging step: determining the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor, and 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 a set angle on the basis of the initial position and maintain at the angle for a set time, taking the position after rotating the set angle from the initial position as the initial position for the next condensation condition detection, and entering the condensation condition detection step; when the dew point temperature K is lower than the minimum temperature Tmin, the electric heating driving device drives the electric heating device to rotate to the initial position.

[0037] The control method of the air conditioner as described above, after the electric heating device rotates to the initial position, when the operating parameter of the air conditioner changes, entering the condensation condition detection step after running for a set time according to the changed operating parameter.

[0038] The control method of the air conditioner as described above, after the electric heating device rotates to the initial position, entering the condensation condition detection step at a regular time.

[0039] Compared with the prior art, the air conditioner has the advantages and positive effects that: the air conditioner comprises an electric heating device, an electric heating driving device, a detection module and a control module; the electric heating driving 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 control module is used to detect the condensation condition when the air conditioner is running in refrigeration or dehumidification, to control the electric heating driving device to drive the electric heating device to rotate to at least one relative position different from an initial position, to acquire parameters detected by the detection module when the electric heating device is in the initial position and each relative position, to judge whether the electric heating device meets the condensation condition according to the parameters detected by the detection module, to control the electric heating driving device to drive the electric heating device to rotate by a set angle on the basis of the initial position and maintain at the angle for a set time when the electric heating device meets the condensation condition, to take the position after the initial position is rotated by the set angle as the initial position for the next condensation condition detection, and to enter the condensation condition detection, and to control the electric heating driving device to drive the electric heating device to rotate to the initial position when the electric heating device does not meet the condensation condition. The air conditioner first detects the condensation condition of the initial position of the electric heating device, detects the temperature field distribution around the electric heating device by rotating the electric heating device to drive the detection module to rotate, then judges the condensation condition, judges whether the electric heating device has the condensation risk in the initial position, drives the electric heating device to rotate by a set angle and maintain at the angle for a set time when the electric heating device has the condensation risk, takes the position after the initial position is rotated by the set angle as the initial position for the next condensation condition detection, continues to judge the condensation condition, and finds the anti-condensation position of the electric heating device until the electric heating device has the uniform temperature field around it in the position, so that the anti-condensation position of the electric heating device determined by the air conditioner can avoid or reduce the condensation of the electric heating device during the refrigeration or dehumidification of the air conditioner.

[0040] The air conditioner of the present application comprises an electric heating device and an electric heating driving device for driving the electric heating device to rotate, and a detection module is arranged around the electric heating device and rotates synchronously with the electric heating device, and the control method is as follows: when the air conditioner is in cooling or dehumidifying operation; a condensation condition detection step: the electric heating driving device drives the electric heating device to rotate to at least one relative position different from an initial position; the detection module detects parameters when the electric heating device is in the initial position and each relative position; a condensation condition judgment step: when it is judged according to the parameters detected by the detection module that the electric heating device meets the condensation condition, the electric heating driving device drives the electric heating device to rotate a set angle on the basis of the initial position and maintain at the angle for a set time, the position after the initial position is rotated by the set angle is taken as the initial position for the next condensation condition detection, and the condensation condition detection step is entered; when it is judged according to the parameters detected by the detection module that the electric heating device does not meet the condensation condition, the electric heating driving device drives the electric heating device to rotate to the initial position. The control method of the air conditioner of the present application firstly detects the condensation condition of the initial position of the electric heating device, detects the temperature field distribution around the electric heating device by rotating the detection module driven by the rotation of the electric heating device, then judges the condensation condition, judges whether the electric heating device in the initial position has a condensation risk, drives the electric heating device to rotate a set angle and maintain at the angle for a set time when there is a condensation risk, takes the position after the initial position is rotated by the set angle as the initial position for the next condensation condition detection, continues to judge the condensation condition, and until the electric heating device finds a condensation prevention position, at which the temperature field around the electric heating device is uniform, the condensation prevention position of the electric heating device determined by the present application can avoid or reduce the problem of condensation of the electric heating device during the cooling or dehumidifying operation of the air conditioner.

[0041] Other features and advantages of the present application will become more apparent from the following detailed description of the application when read in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 is a schematic diagram of the indoor unit of the specific embodiment of the present application.

[0043] Figure 2 is a schematic diagram of the electric heating device of the specific embodiment of the present application.

[0044] Figure 3 is a schematic diagram of the electric heating device and the detection module of the specific embodiment of the present application.

[0045] Figure 4 is a flow chart of the specific embodiment one of the present application.

[0046] Figure 5 is a flow chart of the specific embodiment two of the present application.

[0047] Figure 6is a flow chart of the third embodiment of the present application.

[0048] Figure 7 is a flow chart of the fourth embodiment of the present application.

[0049] in the figure,

[0050] 1. evaporator;

[0051] 2. electric heating device;

[0052] 3. cross-flow fan;

[0053] 4. detection module;

[0054] 5. electric heating driving device. DETAILED DESCRIPTION

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

[0056] It should be noted that in the description of the present application, the terms of direction or positional relationship such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0057] In addition, it should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0058] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application.

[0059] As shown in Figures 1-3 The air conditioner comprises an evaporator 1, an electric heating device 2 and a cross-flow fan 3 arranged in the shell in sequence in the air flow direction.

[0060] InFigure 1 In the shown embodiment, the temperatures of the upper space, the lower space, the left space and the right space of the electric heating device 2 are not consistent when the air conditioner is in cooling or dehumidifying operation. When the detected temperature of the two areas around the electric heating device is lower than the dew point temperature of the higher temperature, water condensation will occur between the two temperature areas, i.e. condensate water will condense on the electric heating device. The electric heating device continuously produces condensate water during the operation of the air conditioner, which will directly drip and be blown out by the cross-flow fan after accumulation for a period of time.

[0061] During the operation of the air conditioner, different operating states, such as air speed, position of the air deflector, and operating frequency of the compressor (determined by the ambient temperature and the user-set temperature), result in inconsistent temperature distribution around the electric heating device when the electric heating device is at the same angle.

[0062] During the operation of the air conditioner, the angle of the electric heating device is very important to the uniformity of the temperature field distribution around the electric heating device. If the electric heating device is at an angle that causes uneven temperature field distribution around the electric heating device, condensation will easily occur on the electric heating device 2. If the electric heating device is at an angle that causes uniform temperature field distribution around the electric heating device, condensation on the electric heating device 2 can be avoided or reduced. Therefore, how to determine the anti-condensation position of the electric heating device so that the parameters around the electric heating device do not meet the condensation condition is the purpose of the present application.

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

[0064] The electric heating device 2 of the air conditioner is driven to rotate by the electric heating driving device 5. The electric heating device 2 is generally rotatably installed on a mounting bracket or a tube plate of the evaporator 1. The electric heating driving device 5 comprises a driving motor, such as a stepping motor, which drives the electric heating device 2 to rotate. The driving motor can directly drive the electric heating device 2, or drive the electric heating device 2 through a gear.

[0065] The electric heating driving device 5 generally drives the electric heating device 2 to alternately rotate in the forward direction and the reverse direction within the rotation range, so as to avoid the entanglement of the electric heating wires.

[0066] The air conditioner comprises a detection module 4 located around the electric heating device 2.

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

[0068] In some embodiments, the detection module 4 is fixed on the electric heating device 2 and rotates synchronously with the electric heating device 2. The detection module 4 is installed on the electric heating device 2 through a mounting bracket.

[0069] In order to reduce the cost, only one detection module 4 is provided, and the purpose of the present application can also be achieved.

[0070] In other embodiments, the detection module 4 can also be driven by other driving mechanisms, as long as the detection module 4 rotates synchronously with the electric heating device.

[0071] The detection module rotates synchronously with the electric heating device, and the detection module can detect the temperature at different positions of the electric heating device, thereby forming a temperature field around the electric heating device. In the air conditioner refrigeration or dehumidification operation, the detection module detects the parameters around the electric heating device when the electric heating device is located at the initial position and a plurality of relative positions, and judges whether the temperature field around the electric heating device is uniform. When the temperature field is within the set deviation range, it indicates that the temperature field around the electric heating device is uniform when the electric heating device is located at the initial position, and the risk of condensation is small. The electric heating device is rotated to the initial position, and when the temperature field exceeds the set deviation range, it indicates that the temperature field around the electric heating device is not uniform when the electric heating device is located at the initial position, and the risk of condensation is large. The electric heating device is driven by the electric heating driving device to rotate a set angle based on the initial position for a set time, and the position of the set angle is taken as the initial position for the next condensation condition detection. The purpose of this embodiment is to find an anti-condensation position, in which the temperature field around the electric heating device is uniform, thereby avoiding the mixing of cold and hot air around the electric heating device, resulting in an uneven temperature field, and avoiding or reducing the generation of condensate water by the electric heating device.

[0072] The following will be described through specific embodiments:

[0073] Embodiment one

[0074] In this embodiment, a detection module 4 is arranged around the electric heating device 2, and the detection module 4 rotates synchronously with the electric heating device.

[0075] The air conditioner further comprises an electric heating driving device 5 and a control module.

[0076] The electric heating driving device 5 is used to drive the electric heating device 2 to rotate.

[0077] The control module is used for detecting the condensation condition when the air conditioner is in cooling or dehumidifying operation: controlling the electric heating driving device to drive the electric heating device to rotate to at least one relative position different from the initial position; obtaining the parameters detected by the detection module when the electric heating device is in the initial position and each relative position; the control module determines whether the condensation condition of the electric heating device 2 is met according to the parameters detected by the detection module 4, and is used for entering the condensation condition judgment after the condensation condition detection is completed: determining whether there is a condensation risk in the initial position of the electric heating device when the condensation condition of the electric heating device 2 is met according to the parameters detected by the detection module 4, and adjusting the initial position of the electric heating device 2, controlling the electric heating driving device to drive the electric heating device to rotate by a set angle based on the initial position and maintain at the angle for a set time, and is used for taking the position after the initial position is rotated by the set angle as the initial position for the next condensation condition detection, and entering the condensation condition detection; when the condensation condition of the electric heating device is not met according to the parameters detected by the detection module, it is determined that there is no condensation risk in the initial position of the electric heating device, and the electric heating device is controlled to rotate to the initial position.

[0078] The embodiment first detects the condensation condition: the detection module detects the parameters of the corresponding positions, including the initial position parameters and the relative position parameters, when the electric heating device is in the initial position and the relative positions different from the initial position; and then judges the condensation condition: according to the parameters detected by the detection module, it is determined whether the temperature field distribution around the electric heating device is uniform when the electric heating device is in the initial position, and when the temperature field distribution is uniform, the electric heating device does not change in the initial position, and when the temperature field distribution is not uniform, the electric heating device rotates by a set angle based on the initial position and maintains at the angle for a set time, and the angle after rotating by the set angle is taken as the initial position for the next condensation condition detection, and the electric heating device is controlled to detect the condensation condition, until an initial position is found to make the temperature field distribution around the electric heating device uniform. The initial position found in the embodiment can ensure that the temperature field distribution around the electric heating device is uniform, and can avoid or reduce the condensation of the electric heating device.

[0079] In order to improve the detection accuracy of the temperature field distribution around the electric heating device 2, at least two relative positions are provided, and part of the relative positions are the positions after the electric heating device 2 is rotated forward, and part of the relative positions are the positions after the electric heating device 2 is rotated backward.

[0080] The angle w between the relative position and the initial position is 0°<w≤90°, and preferably 0°<w≤45°.

[0081] The angle between the relative position and the initial position is negatively related to the number of relative positions. When the angle between the relative position and the initial position is small, a large number of relative positions can be set; when the angle between the relative position and the initial position is large, a small number of relative positions can be set.

[0082] For example, the first relative position is the position of the electric heating device 2 rotating 30 degrees forward on the basis of the initial position, and the second relative position is the position of the electric heating device 2 rotating 30 degrees backward on the basis of the initial position. The electric heating device 2 rotates as fast as possible between the initial position and the relative position, and the parameters detected by the detection module are obtained after the electric heating device 2 rotates to the target position and stabilizes.

[0083] Preferably, the speed of the fast rotation is 20-40° / 5 seconds. The fast rotation can avoid excessive disturbance of the temperature field around the electric heating device by the electric heating device.

[0084] In some embodiments, in order to avoid the running time of the air conditioner changing the temperature field around the electric heating device and thus changing the condensation state of the electric heating device, the control module is configured to enter the condensation condition detection step at a regular time after the electric heating device rotates to the initial position, so as to ensure the anti-condensation effect.

[0085] The control method of the air conditioner is as follows:

[0086] When the air conditioner is in cooling or dehumidifying operation;

[0087] The condensation condition detection step: the electric heating driving device drives the electric heating device to rotate to at least one relative position different from the initial position; the detection module detects the parameters of the electric heating device in the initial position and each relative position;

[0088] The condensation condition judgment step: when the parameters detected by the detection module meet the condensation condition of the electric heating device, the electric heating driving device drives the electric heating device to rotate a set angle on the basis of the initial position and maintain at the angle for a set time, and the position after the initial position is rotated by the set angle is taken as the initial position for the next condensation condition detection, and the condensation condition detection step is entered; when the parameters detected by the detection module do not meet the condensation condition of the electric heating device, the electric heating driving device drives the electric heating device to rotate to the initial position.

[0089] For example, as shown in the following table, the control method of the air conditioner is as follows: Figure 4

[0090] S1, the air conditioner is in cooling or dehumidifying operation.

[0091] S2, the angle E of the initial position of the electric heating device is obtained, and the parameters A detected by the detection module are obtained.

[0092] S3, the electric heating driving device drives the electric heating device to rotate 30 degrees forward on the basis of the initial position to the first relative position, and after stabilizing, the angle F of the electric heating device is obtained, and the parameters B detected by the detection module are obtained. ​

[0093] S4, the electric heating driving device drives the electric heating device to return to the initial position, and then rotates reversely by 30 degrees on the basis of the initial position to a second relative position, and after being stabilized, acquires the angle G of the electric heating device, and acquires the parameter C detected by the detection module.

[0094] S5, whether the electric heating device condensation condition is met is judged according to the parameter detected by the detection module, when the electric heating device condensation condition is met, step S6 is entered, otherwise, step S7 is entered.

[0095] S6, the electric heating driving device drives the electric heating device to rotate by a set angle on the basis of the initial position and maintain at the angle for a set time, and the position after the initial position is rotated by the set angle is taken as the initial position for the next condensation condition detection, and step S2 is entered.

[0096] S7, the electric heating driving device drives the electric heating device to rotate to the initial position.

[0097] In step S7, when the electric heating device is at the angle of the initial position, the temperature field distribution around the electric heating device is uniform, which does not cause the electric heating device to condense, and thus the electric heating device is rotated to the initial position.

[0098] In some embodiments, in order to avoid the running time of the air conditioner to change the temperature field around the electric heating device, thereby changing the condensation state of the electric heating device, when the electric heating device is rotated to the initial position and the air conditioner continues to run in the set state, the condensation condition detection step is entered in time to ensure the anti-condensation effect.

[0099] In step S7, after the electric heating device is rotated to the initial position and the air conditioner continues to run in the set state for a period of time, step S2 is entered in time to make the condensation judgment.

[0100] Embodiment two

[0101] In this embodiment, the detection module 4 includes a temperature sensor located around the electric heating device.

[0102] The temperature sensor is a certain distance away from the electric heating device, and is used to measure the air temperature around the electric heating device.

[0103] The temperature sensor is installed on the electric heating device through a support, and rotates synchronously with the electric heating device.

[0104] The air conditioner further includes an electric heating driving device 5 and a control module.

[0105] The electric heating driving device 5 is used to drive the electric heating device 2 to rotate.

[0106] The control module is used for carrying out condensation condition detection when the air conditioner is in refrigeration or dehumidification operation: for controlling the electric heating driving device to drive the electric heating device to rotate to at least one relative position different from the initial position; for acquiring the temperature detected by the temperature sensor when the electric heating device is in the initial position and each relative position; the control module judges whether the condensation condition of the electric heating device 2 is met according to the temperature detected by the temperature sensor, and the control module is used for entering condensation condition judgment after the condensation condition detection is completed: for judging that there is a condensation risk when the electric heating device is in the initial position according to the temperature detected by the temperature sensor when the condensation condition of the electric heating device 2 is met (for determining the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor, and the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature), and the initial position of the electric heating device 2 needs to be adjusted, the control module is used for controlling the electric heating driving device to drive the electric heating device to rotate by a set angle on the basis of the initial position and maintain at the angle for a set time, for taking the position after the initial position is rotated by the set angle as the initial position for the next condensation condition detection, and entering the condensation condition detection; for judging that there is no condensation risk when the electric heating device is in the initial position according to the temperature detected by the temperature sensor when the condensation condition of the electric heating device is not met (the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature), and the control module is used for controlling the electric heating driving device to drive the electric heating device to rotate to the initial position.

[0107] The control module of the embodiment first carries out condensation condition detection: controls the electric heating device to be in the initial position and the relative position different from the initial position, detects the temperature of the corresponding position, including the initial position temperature and the relative position temperature; then carries out condensation condition judgment: determines the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor, judges that the temperature field distribution around the electric heating device is uneven when the electric heating device is in the initial position when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, rotates the electric heating device by a set angle on the basis of the initial position and maintains at the angle for a set time, takes the angle after the rotation by the set angle as the initial position for the next condensation condition detection, and continues to enter the condensation condition detection until an initial position is found to make the temperature field distribution around the electric heating device uniform. When the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, it is indicated that the temperature field distribution around the electric heating device is uniform when the electric heating device is in the initial position, and the control module is used for controlling the electric heating driving device to drive the electric heating device to rotate to the initial position. The initial position found in the embodiment can ensure that the temperature field distribution around the electric heating device is uniform, and avoid or reduce the condensation of the electric heating device.

[0108] The electric heating device 2 is generally rotatably installed on the mounting bracket or the tube plate of the evaporator 1, and the electric heating driving device 5 includes a driving motor, for example, a stepping motor, which drives the electric heating device 2 to rotate.

[0109] In order to improve the detection accuracy of the temperature field distribution around the electric heating device 2, the relative positions are at least two, and part of the relative positions are positions after the electric heating device 2 is turned forward, and part of the relative positions are positions after the electric heating device 2 is turned backward.

[0110] The angle w between the relative position and the initial position is 0°<w≤90°, and preferably 0°<w≤45°.

[0111] The angle between the relative position and the initial position is negatively related to the number of relative positions. When the angle between the relative position and the initial position is small, a large number of relative positions can be set; when the angle between the relative position and the initial position is large, a small number of relative positions can be set.

[0112] Taking two relative positions as an example, the first relative position is a position where the electric heating device 2 is turned by 45 degrees on the basis of the initial position, and the second relative position is a position where the electric heating device 2 is turned by 45 degrees on the basis of the initial position. When the electric heating device 2 is switched between the initial position and the relative position, it is rotated as fast as possible, and the temperature detected by the temperature sensor is obtained after the target position is reached and stabilized.

[0113] The speed of fast rotation is generally 0-40° / 5 seconds, and preferably 20-40° / 5 seconds. Fast rotation can avoid excessive disturbance of the temperature field around the electric heating device by the electric heating device.

[0114] In some embodiments, in order to avoid the running time of the air conditioner changing the temperature field around the electric heating device and thus changing the condensation state of the electric heating device, the control module is used to enter the condensation condition detection step in a timely manner when the air conditioner continues to run in the set state, so as to ensure the anti-condensation effect.

[0115] The control method of the air conditioner is:

[0116] When the air conditioner is running in refrigeration or dehumidification;

[0117] The condensation condition detection step: the electric heating driving device drives the electric heating device to rotate to at least one relative position different from the initial position; the temperature sensor detects the temperature of the electric heating device in the initial position and each relative position;

[0118] The condensation condition judging 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 the set temperature, the electric heating driving device drives the electric heating device to rotate a set angle on the basis of the initial position and maintain at the angle for a set time, taking the position after rotating the set angle from the initial position as the initial position for the next condensation condition detection, and entering 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 driving device drives the electric heating device to rotate to the initial position.

[0119] As shown in Figure 5 , taking the detection of the condensation condition through two relative positions as an example, the control method of the air conditioner is:

[0120] S1, the air conditioner is in cooling or dehumidifying operation.

[0121] S2, obtaining the angle E of the initial position of the electric heating device, and obtaining the temperature A detected by the temperature sensor.

[0122] S3, the electric heating driving device drives the electric heating device to rotate 45 degrees forward quickly on the basis of the initial position to the first relative position, stabilizes for a period of time, obtains the angle F of the electric heating device, and obtains the temperature B detected by the temperature sensor.

[0123] S4, the electric heating driving device drives the electric heating device to return to the initial position, and drives the electric heating device to rotate 45 degrees reversely on the basis of the initial position to the second relative position, stabilizes for a period of time, obtains the angle G of the electric heating device, and obtains the temperature C detected by the temperature sensor.

[0124] S5, 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 the set temperature, entering step S6, otherwise, entering step S7.

[0125] S6, the electric heating driving device drives the electric heating device to rotate a set angle on the basis of the initial position and maintain at the angle for a set time, taking the position after rotating the set angle from the initial position as the initial position for the next condensation condition detection, and entering step S2.

[0126] S7, the electric heating driving device drives the electric heating device to rotate to the initial position.

[0127] In step S7, when the electric heating device is at the angle of the initial position, the temperature field distribution around the electric heating device is uniform, which will not cause the condensation of the electric heating device, so the electric heating device is rotated to the initial position.

[0128] In some embodiments, in order to avoid the change of the temperature field around the electric heating device caused by the running time of the air conditioner, thereby changing the condensation state of the electric heating device, the condensation condition detection step is entered in time when the electric heating device is rotated to the initial position and the air conditioner continues to run in the set state, so as to ensure the anti-condensation effect.

[0129] In step S7, after the electric heating device is rotated to the initial position and the air conditioner continues to run in the set state, step S2 is entered in time to determine the condensation.

[0130] In this embodiment, the electric heating device is increased with an electric heating device driving device, so that the electric heating device can adjust the angle according to the system setting during the actual operation of the air conditioner. In cooperation with the temperature sensor arranged around the electric heating device, whether the temperature field around the electric heating device is uniform is monitored. When the temperature field is within the set deviation range, the electric heating device is in the initial position, and when the temperature field exceeds the set deviation range, the electric heating device is rotated, and the position of the rotated electric heating device is taken as the initial position of the next condensation condition detection, until the position of the electric heating device makes the temperature field around it uniform. This embodiment can adjust the angle of the electric heating device according to the running state of the air conditioner, so as to make the temperature field around the electric heating device uniform, and avoid the condensation water generated by the alternating mixing of cold and hot air around the electric heating device and the dripping.

[0131] Embodiment Three

[0132] In this embodiment, the detection module 4 includes a temperature sensor and a humidity sensor arranged around the electric heating device.

[0133] The temperature sensor is a certain distance away from the electric heating device and is used to measure the air temperature around the electric heating device.

[0134] The temperature sensor is installed on the electric heating device through a support and rotates synchronously with the electric heating device.

[0135] The temperature sensor is a certain distance away from the electric heating device and is used to measure the air temperature around the electric heating device.

[0136] The installation position of the humidity sensor is not limited, and the humidity sensor can be fixedly installed in the air conditioner. Of course, the humidity sensor can also be installed on the installation support and rotate synchronously with the electric heating device.

[0137] The control module is used for detecting the condensation condition when the air conditioner is in cooling or dehumidifying operation: controlling the electric heating driving device to drive the electric heating device to rotate to at least one relative position different from the initial position; obtaining the temperature detected by the temperature sensor when the electric heating device is in the initial position and each relative position; the humidity sensor is used for detecting the humidity S; the control module determines whether the condensation condition of the electric heating device 2 is met according to the temperature detected by the temperature sensor and the humidity detected by the humidity sensor, and the control module is used for entering the condensation condition judgment after the condensation condition detection is completed: when the temperature detected by the temperature sensor and the humidity detected by the humidity sensor meet the condensation condition of the electric heating device 2 (for determining the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor, for determining the dew point temperature K according to the maximum temperature Tmax and the humidity S; for rotating the electric heating device by a set angle based on the initial position and maintaining at the angle for a set time when the dew point temperature K is higher than the minimum temperature Tmin), there is a risk of condensation when the electric heating device is in the initial position, and the initial position of the electric heating device 2 needs to be adjusted, the electric heating driving device is controlled to drive the electric heating device to rotate by a set angle based on the initial position and maintain at the angle for a set time, the position after the initial position is rotated by a set angle is used as the initial position for the next condensation condition detection, and the condensation condition detection is entered; when the temperature detected by the temperature sensor and the humidity detected by the humidity sensor do not meet the condensation condition of the electric heating device (when the dew point temperature K is lower than the minimum temperature Tmin), it indicates that there is no risk of condensation when the electric heating device is in the initial position, and the electric heating driving device is controlled to drive the electric heating device to rotate to the initial position.

[0138] The embodiment first detects the condensation condition: controls the electric heating device to be in the initial position and the relative position different from the initial position, detects the temperature of the corresponding position by the temperature sensor, including the initial position temperature and the relative position temperature, and detects the humidity S by the humidity sensor; then judges the condensation condition: determines the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor, determines 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, it is judged that the temperature field distribution around the electric heating device is uneven when the electric heating device is in the initial position, the electric heating device is rotated by a set angle based on the initial position and maintained at the angle for a set time, the angle after the initial position is rotated by a set angle is used as the initial position for the next condensation condition detection, and the condensation condition detection is continued until an initial position is found to make the temperature field distribution around the electric heating device uniform. When the dew point temperature K is lower than the minimum temperature Tmin, it indicates that the temperature field distribution around the electric heating device is uniform when the electric heating device is in the initial position, and the electric heating driving device is controlled to drive the electric heating device to rotate to the initial position. The initial position found in the embodiment can ensure that the temperature field distribution around the electric heating device is uniform, and avoid the condensation of the electric heating device.

[0139] In order to improve the detection accuracy of the temperature field distribution around the electric heating device 2, the relative positions are at least two, and part of the relative positions are positions after the electric heating device 2 is turned forward, and part of the relative positions are positions after the electric heating device 2 is turned backward.

[0140] The angle w between the relative position and the initial position is 0°<w≤90°, preferably 0°<w≤45°.

[0141] The angle between the relative position and the initial position is negatively related to the number of relative positions. When the angle between the relative position and the initial position is small, a large number of relative positions can be set; when the angle between the relative position and the initial position is large, a small number of relative positions can be set.

[0142] Taking two relative positions as an example, the first relative position is a position after the electric heating device 2 is turned 90 degrees on the basis of the initial position, and the second relative position is a position after the electric heating device 2 is turned 90 degrees on the basis of the initial position. When the electric heating device 2 is switched between the initial position and the relative position, it is rotated as fast as possible, and after rotating to the target position, it is stabilized for a period of time before the temperature detected by the temperature sensor is obtained.

[0143] The speed of fast rotation is generally 0-40° / 5 seconds, preferably 20-40° / 5 seconds. Fast rotation can avoid excessive disturbance of the temperature field around the electric heating device by the electric heating device.

[0144] In some embodiments, in order to avoid the running time of the air conditioner changing the temperature field around the electric heating device and thus changing the condensation state of the electric heating device, the control module is used to enter the condensation condition detection step in time when the air conditioner continues to run in the set state, so as to ensure the anti-condensation effect.

[0145] The control method of the air conditioner is:

[0146] When the air conditioner is running in refrigeration or dehumidification;

[0147] The condensation condition detection step: the electric heating driving device drives the electric heating device to rotate to at least one relative position different from the initial position; the temperature sensor detects the temperature when the electric heating device is in the initial position and each relative position;

[0148] The condensation condition judging 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 a set angle on the basis of the initial position and maintain at the angle for a set time, taking the position after rotating the set angle from the initial position as the initial position for the next condensation condition detection, and entering the condensation condition detection step; when the dew point temperature K is lower than the minimum temperature Tmin, the electric heating driving device drives the electric heating device to rotate to the initial position.

[0149] As shown in Figure 6 , taking the detection of two relative positions as the condensation condition as an example, the control method of the air conditioner is:

[0150] S1, the air conditioner is in cooling or dehumidifying operation.

[0151] S2, obtaining the angle E of the initial position of the electric heating device, and obtaining the temperature A detected by the temperature sensor.

[0152] S3, the electric heating driving device drives the electric heating device to rotate 90 degrees forward on the basis of the initial position to the first relative position, stabilizes for a period of time, obtains the angle F of the electric heating device, and obtains the temperature B detected by the temperature sensor.

[0153] S4, the electric heating driving device drives the electric heating device to return to the initial position, and drives the electric heating device to rotate 90 degrees reversely on the basis of the initial position to the second relative position, stabilizes for a period of time, obtains the angle G of the electric heating device, and obtains the temperature C detected by the temperature sensor.

[0154] S5, obtaining the humidity S, determining the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor, and 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, entering step S6, otherwise, entering step S7.

[0155] S6, the electric heating driving device drives the electric heating device to rotate a set angle on the basis of the initial position and maintain at the angle for a set time, taking the position after rotating the set angle from the initial position as the initial position for the next condensation condition detection, and entering step S2.

[0156] S7, the electric heating driving device drives the electric heating device to rotate to the initial position.

[0157] In step S7, when the electric heating device is at the angle of the initial position, the temperature field distribution around the electric heating device is uniform, which will not cause the condensation of the electric heating device, so the electric heating device is rotated to the initial position.

[0158] In some embodiments, in order to avoid the change of the air conditioner running time to the temperature field around the electric heating device, thereby changing the condensation state of the electric heating device, the condensation condition detection step is entered in time when the electric heating device is rotated to the initial position and the air conditioner continues to run in the set state, so as to ensure the anti-condensation effect.

[0159] In step S7, after the electric heating device is rotated to the initial position and the air conditioner continues to run in the set state for a period of time, step S2 is entered in time to determine the condensation.

[0160] In this embodiment, the electric heating device is increased with an electric heating device driving device, so that the electric heating device can adjust the angle according to the system setting during the actual operation of the air conditioner. The temperature sensor and the humidity sensor arranged around the electric heating device are used to monitor whether the temperature field around the electric heating device is uniform. When the temperature field is within the set deviation range, the electric heating device is in the initial position. When the temperature field exceeds the set deviation range, the electric heating device is rotated, and the position of the rotated electric heating device is taken as the initial position for the next condensation condition detection. Until the position of the electric heating device makes the temperature field around it uniform. This embodiment can adjust the angle of the electric heating device according to the running state of the air conditioner, so as to make the temperature field around the electric heating device uniform, and avoid the condensation water generated by the alternating mixing of cold and hot air around the electric heating device.

[0161] Embodiment Four

[0162] On the basis of embodiments one to three, the control module of this embodiment is used to judge whether the running parameters of the air conditioner change after the electric heating device is rotated to the initial position, and is used to control the air conditioner to run according to the changed running parameters for a set time before entering the condensation condition detection when the running parameters of the air conditioner change.

[0163] The control method is: after the electric heating device is rotated to the initial position, when the running parameters of the air conditioner change, the condensation condition detection step is entered after running for a set time according to the changed running parameters.

[0164] The running parameters of the air conditioner include air speed adjustment, air deflector position adjustment, compressor running frequency (related to user set temperature and environment temperature), etc.

[0165] As shown in Figure 7 The control method of the air conditioner of this embodiment is:

[0166] S1, the air conditioner runs in refrigeration or dehumidification.

[0167] S2, the angle E of the initial position of the electric heating device is obtained, and the parameter A detected by the detection module is obtained.

[0168] S3, the electric heating driving device drives the electric heating device to rotate 30 degrees forward on the basis of the initial position to a first relative position, and after stabilization, the angle F of the electric heating device is obtained, and the parameter B detected by the detection module is obtained.

[0169] S4, the electric heating driving device drives the electric heating device to return to the initial position, and drives the electric heating device to rotate 30 degrees reversely on the basis of the initial position to a second relative position, and after stabilization, the angle G of the electric heating device is obtained, and the parameter C detected by the detection module is obtained.

[0170] S5, whether the electric heating device condensation condition is met is determined according to the parameter detected by the detection module, if the electric heating device condensation condition is met, step S6 is entered, otherwise, step S7 is entered.

[0171] S6, the electric heating driving device drives the electric heating device to rotate a set angle on the basis of the initial position and maintain at the angle for a set time, and the position after the initial position is rotated by the set angle is taken as the initial position for the next condensation condition detection, and step S2 is entered.

[0172] S7, the electric heating driving device drives the electric heating device to rotate to the initial position.

[0173] In step S7, when the electric heating device is at the angle of the initial position, the temperature field distribution around the electric heating device is uniform, which does not cause the electric heating device to condense, and thus the electric heating device is rotated to the initial position.

[0174] S8, the operating parameter of the air conditioner changes, if yes, step S9 is entered, otherwise, step S7 is entered.

[0175] S9, the air conditioner is operated according to the changed operating parameter for a set time, and step S2 is entered.

[0176] The embodiment adds an electric heating device driving device to the electric heating device, so that the electric heating device can be adjusted according to the system setting angle during the actual operation of the air conditioner. The temperature sensor and the humidity sensor arranged around the electric heating device are used to monitor whether the temperature field around the electric heating device is uniform. When the temperature field is within the set deviation range, the electric heating device is in a dehumidification position. When the temperature field exceeds the set deviation range, the electric heating device is rotated, and the position of the rotated electric heating device is used as the initial position for the next condensation condition detection. The position of the electric heating device is adjusted until the temperature field around the electric heating device is uniform. The embodiment can adjust the angle of the electric heating device according to the operation state of the air conditioner, so that the temperature field around the electric heating device is uniform, and the condensation water generated by the alternating mixing of cold and hot air around the electric heating device is avoided. When the temperature field around the electric heating device is uniform, the air conditioner continues to operate according to the set state. Then, it is further judged whether the operation parameters of the air conditioner change. When the operation parameters change, the air conditioner re-enters the temperature field uniformity judgment. If the temperature field is not uniform, the angle of the electric heating device is adjusted to ensure that the electric heating device is always in a uniform temperature field state.

[0177] The above is only the preferred embodiment of the present application, and does not limit the other forms of the present application. Any person skilled in the art can modify or change the above disclosed technical content to obtain equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments without departing from the technical solution of the present application, and according to the technical essence of the present application, still belong to the protection scope of the present application.

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 detection module located around the electric heating device and rotating synchronously with the electric heating device; A control module configured to, when the air conditioner is operating in refrigeration or dehumidification mode, perform condensation condition detection, for controlling the electric heating driving device to drive the electric heating device to rotate to at least one relative position different from an initial position, and for acquiring parameters detected by the detection module when the electric heating device is at the initial position and each relative position; after the condensation condition detection is completed, enter condensation condition judgment, for determining, according to the parameters detected by the detection module, whether the electric heating device meets the condensation condition, and for controlling the electric heating driving device to drive the electric heating device to rotate a set angle on the basis of the initial position and maintain at the angle for a set time when the electric heating device meets the condensation condition, for taking the position after the initial position is rotated the set angle as the initial position for the next condensation condition detection, and entering condensation condition detection; and for controlling the electric heating driving device to drive the electric heating device to rotate to the initial position when the electric heating device does not meet the condensation condition.

2. The air conditioner of claim 1, wherein The detection module comprises a temperature sensor arranged around the electric heating device; The control module is configured to, when the air conditioner is operating in refrigeration or dehumidification mode, perform condensation condition detection, for controlling the electric heating driving device to drive the electric heating device to rotate to at least one relative position different from an initial position, and for acquiring temperatures detected by the temperature sensor when the electric heating device is at the initial position and each relative position; after the condensation condition detection is completed, enter condensation condition judgment, for determining, according to the temperatures detected by the temperature sensor, a maximum temperature Tmax and a minimum temperature Tmin; 3. The air conditioner of claim 1, wherein for controlling the electric heating driving device to drive the electric heating device to rotate a set angle on the basis of the initial position and maintain at the angle for a set time when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than a set temperature, for taking the position after the initial position is rotated the set angle as the initial position for the next condensation condition detection, and entering condensation condition detection; and for controlling the electric heating driving device to drive the electric heating device to rotate to the initial position when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature. 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; The control module is configured to, when the air conditioner is operating in refrigeration or dehumidification mode, perform condensation condition detection, for controlling the electric heating driving device to drive the electric heating device to rotate to at least one relative position different from an initial position, for acquiring temperatures detected by the temperature sensor when the electric heating device is at the initial position and each relative position, and for acquiring humidity detected by the humidity sensor; The control module is used for determining a maximum temperature Tmax and a minimum temperature Tmin according to the temperature detected by the temperature sensor, determining a dew point temperature K according to the maximum temperature Tmax and the humidity S, controlling the electric heating driving device to drive the electric heating device to rotate a set angle on the basis of the initial position and maintain at the angle for a set time when the dew point temperature K is higher than the minimum temperature Tmin, taking the position after the initial position is rotated by the set angle as the initial position for the next condensation condition detection, and entering the condensation condition detection; and controlling the electric heating driving device to drive the electric heating device to rotate to the initial position when the dew point temperature K is lower than the minimum temperature Tmin.

4. The air conditioner according to any one of claims 1 to 3, characterized by The control module is used for judging whether the operating parameter of the air conditioner changes after the electric heating device rotates to the initial position, and controlling the air conditioner to operate according to the changed operating parameter for a set time and then enter the condensation condition detection when the operating parameter of the air conditioner changes.

5. The air conditioner according to any one of claims 1 to 3, wherein The control module is used for entering the condensation condition detection in a time manner after the electric heating device rotates to the initial position.

6. A control method of an air conditioner, characterized by, The air conditioner comprises an electric heating device and an electric heating driving device, the electric heating driving device is used for driving the electric heating device to rotate, a detection module is arranged around the electric heating device, the detection module rotates synchronously with the electric heating device, and the control method is as follows: The air conditioner is in refrigeration or dehumidification operation; The condensation condition detection step is that the electric heating driving device drives the electric heating device to rotate to at least one relative position which is different from the initial position, and the detection module detects the parameters of the electric heating device in the initial position and each relative position; The condensation condition judgment step is that, 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 on the basis of the initial position and maintain at the angle for a set time, the position after the initial position is rotated by the set angle is taken as the initial position for the next condensation condition detection, and the condensation condition detection step is entered; and according to the parameters detected by the detection module, when the condensation condition of the electric heating device is not met, the electric heating driving device drives the electric heating device to rotate to the initial position.

7. The control method of the air conditioner according to claim 6, characterized by, The detection module comprises a temperature sensor arranged around the electric heating device, and the control method is as follows: The air conditioner is in refrigeration or dehumidification operation; The condensation condition detection step is that the electric heating driving device drives the electric heating device to rotate to at least one relative position which is different from the initial position, and the temperature sensor detects the temperature of the electric heating device in the initial position and each relative position; The condensation condition judging step includes: 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 the set temperature, the electric heating driving device drives the electric heating device to rotate by the set angle based on the initial position and maintain at the angle for the set time, and the position after rotating by the set angle from the initial position is taken as the initial position for the next condensation condition detection, and the condensation condition detection step is entered; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, the electric heating driving device drives the electric heating device to rotate to the initial position.

8. The control method of the air conditioner according to claim 6, characterized by, The detection module includes the humidity sensor and the temperature sensor arranged around the electric heating device, and at least the temperature sensor rotates synchronously with the electric heating device, and the control method is: When the air conditioner is in cooling or dehumidifying operation; The condensation condition detection step includes: the electric heating driving device drives the electric heating device to rotate to at least one relative position different from the initial position; the temperature sensor detects the temperature of the electric heating device at the initial position and each relative position; and the humidity sensor detects the humidity. The condensation condition judging step includes: determining the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor, and 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 the set angle based on the initial position and maintain at the angle for the set time, and the position after rotating by the set angle from the initial position is taken as the initial position for the next condensation condition detection, and the condensation condition detection step is entered; when the dew point temperature K is lower than the minimum temperature Tmin, the electric heating driving device drives the electric heating device to rotate to the initial position.

9. The control method of an air conditioner according to any one of claims 6 to 8, characterized by, After the electric heating device rotates to the initial position, when the operating parameter of the air conditioner changes, the condensation condition detection step is entered after the air conditioner operates according to the changed operating parameter for the set time.

10. The control method of an air conditioner according to any one of claims 6 to 8, characterized by, After the electric heating device rotates to the initial position, the condensation condition detection step is entered at a fixed time.

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