Air conditioner and control method thereof

Abstract

The application provides an air conditioner and a control method thereof. The air conditioner comprises an electric heating device, an electric heating driving device, a detection module, a detection module driving device and a control module. The electric heating device is driven by the electric heating driving device to rotate to a plurality of angles Wj in a rotation range thereof. For each angle Wj, the detection module driving device drives the detection module to rotate around the electric heating device. At least two parameters are detected during the rotation of the detection module. The maximum value Tmaxj and the minimum value Tminj of the at least two parameters corresponding to the angle Wj of the electric heating device are determined. The difference between the maximum value Tmaxj and the minimum value Tminj is calculated. The temperature field distribution around the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is most uniform, which is used as the anti-condensation angle of the electric heating device, so that the generation of condensation can be reduced as much as possible. The anti-condensation angle is first searched, and the electric heating device is directly controlled to reach the anti-condensation angle, so that the electric heating device does not need to rotate to a set angle to search for the anti-condensation angle, and the anti-condensation efficiency is high.

Description

TECHNICAL FIELD

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

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

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

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

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

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

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

[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 the electric heating device due to different temperatures around the electric heating device when the air conditioner is in refrigeration or dehumidification operation.

[0010] An air conditioner, comprising:

[0011] An electric heating device;

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

[0013] A detection module located around the electric heating device;

[0014] A detection module driving device for driving the detection module to rotate around the electric heating device;

[0015] A control module for detecting the 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 a plurality of angles Wj, for driving the detection module to rotate around the electric heating device by the detection module driving device when the electric heating device is located at each angle Wj, and for obtaining at least two parameters detected by the detection module during the rotation of the detection module;

[0016] For entering the condensation condition judgment after the condensation condition detection is completed, for determining the maximum value Tmaxj and the minimum value Tminj of the at least two parameters corresponding to a plurality of angles Wj of the electric heating device, for calculating the difference between the maximum value Tmaxj and the minimum value Tminj, for determining that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is the anti-condensation angle, and for controlling the electric heating driving device to drive the electric heating device to rotate to the anti-condensation angle.

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

[0018] a control module, configured to perform condensation condition detection when the air conditioner is in cooling or dehumidifying operation: configured to control the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj, and configured to drive the temperature sensor to rotate around the electric heating device by the detection module driving device when the electric heating device is at each angle Wj, and obtain at least two temperatures detected by the temperature sensor during rotation of the temperature sensor;

[0019] configured to perform condensation condition judgment after the condensation condition detection is completed: configured to determine maximum temperature Tmaxj and minimum temperature Tminj of at least two temperatures corresponding to the angles Wj of the electric heating device, configured to calculate a difference between the maximum temperature Tmaxj and the minimum temperature Tminj, and configured to determine that the angle Wj of the electric heating device corresponding to a minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj is an anti-condensation angle, and control the electric heating driving device to drive the electric heating device to rotate to the anti-condensation angle.

[0020] The air conditioner described above, the detection module comprises a humidity sensor and a temperature sensor arranged around the electric heating device, and the detection module driving device at least drives the temperature sensor to rotate around the electric heating device.

[0021] a control module, configured to perform condensation condition detection when the air conditioner is in cooling or dehumidifying operation: configured to obtain humidity S detected by the humidity sensor; configured to control the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj, and configured to drive the temperature sensor to rotate around the electric heating device by the detection module driving device when the electric heating device is at each angle Wj, and obtain at least two temperatures detected by the temperature sensor during rotation of the temperature sensor;

[0022] configured to perform condensation condition judgment after the condensation condition detection is completed: configured to determine maximum temperature Tmaxj and minimum temperature Tminj of at least two temperatures corresponding to the angles Wj of the electric heating device, and determine dew point temperature Kj according to the maximum temperature Tmaxj and the humidity S; configured to determine that the angle Wj of the electric heating device corresponding to a minimum value of |Kj-Tminj| is an anti-condensation angle, and control the electric heating driving device to drive the electric heating device to rotate to the anti-condensation angle.

[0023] The air conditioner described above, the control module is configured to determine whether the operating parameters of the air conditioner change when the electric heating device is at the anti-condensation angle, and configured to perform condensation condition detection again after the air conditioner is operated according to the changed operating parameters for a set time.

[0024] The air conditioner as described above, the control module is used to control the electric heating driving device to drive the electric heating device to rotate in the rotation range from the initial angle to (180 degrees - the initial angle) in the condensation condition detection, and is used to drive the detection module to rotate from the initial angle to the terminal angle or from the terminal angle to the initial angle by the detection module driving device when the electric heating device is located at each angle Wj, and the detection module detects the parameters in real time to form a parameter curve during the rotation of the detection module.

[0025] A control method of an air conditioner, the air conditioner comprising an electric heating device, an electric heating driving device, a detection module and a detection module driving device; 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; the detection module driving device is used to drive the detection module to rotate around the electric heating device; and the control method is:

[0026] The air conditioner is operated in refrigeration or dehumidification mode.

[0027] A condensation condition detection step: the electric heating driving device is controlled to drive the electric heating device to rotate to a plurality of angles Wj, and the detection module driving device is controlled to drive the temperature sensor to rotate around the electric heating device when the electric heating device is located at each angle Wj, and at least two temperatures detected by the temperature sensor during the rotation of the temperature sensor are obtained.

[0028] A condensation condition judgment step: the maximum value Tmaxj and the minimum value Tminj of the at least two parameters corresponding to a plurality of angles Wj of the electric heating device are determined, the difference between the maximum value Tmaxj and the minimum value Tminj is calculated, the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is determined as the anti-condensation angle, and the electric heating driving device is controlled to drive the electric heating device to rotate to the anti-condensation angle.

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

[0030] The air conditioner is operated in refrigeration or dehumidification mode.

[0031] A condensation condition detection step: the electric heating driving device is controlled to drive the electric heating device to rotate to a plurality of angles Wj, and the detection module driving device is controlled to drive the temperature sensor to rotate around the electric heating device when the electric heating device is located at each angle Wj, and at least two temperatures detected by the temperature sensor during the rotation of the temperature sensor are obtained.

[0032] The condensation condition judgment step: determining the maximum temperature Tmaxj and the minimum temperature Tminj of at least two temperatures corresponding to the angle Wj of the electric heating device, calculating the difference between the maximum temperature Tmaxj and the minimum temperature Tminj, determining the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj as the anti-condensation angle, and driving the electric heating device to rotate to the anti-condensation angle by the electric heating driving device.

[0033] The control method of the air conditioner as described above, the detection module comprises a humidity sensor and a temperature sensor arranged around the electric heating device, and the detection module driving device drives at least the temperature sensor to rotate around the electric heating device; the control method is:

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

[0035] The condensation condition detection step: obtaining the humidity S detected by the humidity sensor; driving the electric heating device to rotate to a plurality of angles Wj by the electric heating driving device, driving the temperature sensor to rotate around the electric heating device by the detection module driving device when the electric heating device is at each angle Wj, and obtaining at least two temperatures detected by the temperature sensor during rotation of the temperature sensor.

[0036] The condensation condition judgment step: determining the maximum temperature Tmaxj and the minimum temperature Tminj of at least two temperatures corresponding to the angle Wj of the electric heating device, determining the dew point temperature Kj according to the maximum temperature Tmaxj and the humidity S; determining the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| as the anti-condensation angle, and driving the electric heating device to rotate to the anti-condensation angle by the electric heating driving device.

[0037] The control method of the air conditioner as described above, when the electric heating device is at the anti-condensation angle, determining whether the operating parameter of the air conditioner changes, and when the operating parameter of the air conditioner changes, entering the condensation condition detection step again after a set time of operation according to the changed operating parameter.

[0038] The control method of the air conditioner as described above, in the condensation condition detection step, the electric heating driving device is controlled to drive the electric heating device to rotate within a rotation range from an initial angle to (180 degrees-initial angle), the detection module driving device drives the detection module to rotate from the initial angle to the terminal angle or from the terminal angle to the initial angle when the electric heating device is at each angle Wj, and the detection module detects parameters in real time to form a parameter curve during rotation of the detection module.

[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, a detection module driving device 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, the detection module driving device is used to drive the detection module to rotate around the electric heating device, the control module is used to detect the condensation condition when the air conditioner is operated in the refrigeration or dehumidification mode, to control the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj, to drive the detection module driving device to drive the detection module to rotate around the electric heating device when the electric heating device is located at each angle Wj, to obtain at least two parameters detected in the rotation of the detection module, to determine the maximum value Tmaxj and the minimum value Tminj of the at least two parameters corresponding to the angles Wj of the electric heating device after the condensation condition detection is completed, to calculate the difference between the maximum value Tmaxj and the minimum value Tminj, to determine that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is the anti-condensation angle, and to control the electric heating driving device to drive the electric heating device to rotate to the anti-condensation angle. The air conditioner drives the electric heating device to rotate to a plurality of angles Wj in the rotation range of the electric heating device by the electric heating driving device, for each angle Wj, the detection module driving device drives the detection module to rotate around the electric heating device, at least two parameters are detected in the rotation of the detection module, the maximum value Tmaxj and the minimum value Tminj of the at least two parameters corresponding to the angles Wj of the electric heating device are determined, the difference between the maximum value Tmaxj and the minimum value Tminj is calculated, the temperature field around the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is most uniform, and the angle Wj is taken as the anti-condensation angle of the electric heating device, so that the generation of condensation can be reduced as much as possible. The air conditioner can avoid or reduce the problem of condensation of the electric heating device during the operation of the air conditioner in the refrigeration or dehumidification mode. The control module controls the electric heating device to rotate to a plurality of angles and controls the detection module to rotate around the electric heating device to detect parameters for each angle, the anti-condensation angle is directly determined according to the rotation angle of the electric heating device and the detection parameters, the anti-condensation angle is first searched for, the electric heating device is directly controlled to reach the anti-condensation angle, and the electric heating device does not need to be sequentially rotated to a set angle to search for the anti-condensation angle, so that the anti-condensation efficiency is high.

[0040] The control method of the air conditioner is as follows: when the air conditioner is in refrigeration or dehumidification operation; a condensation condition detection step: the electric heating driving device drives the electric heating device to rotate to a plurality of angles Wj, when the electric heating device is at each angle Wj, the detection module driving device drives the detection module to rotate around the electric heating device, and at least two parameters detected in the rotation of the detection module are obtained; a condensation condition judgment step: the maximum value Tmaxj and the minimum value Tminj of the at least two parameters corresponding to the angles Wj of the plurality of electric heating devices are determined, the difference between the maximum value Tmaxj and the minimum value Tminj is calculated, and the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is determined as the anti-condensation angle, and the electric heating driving device drives the electric heating device to rotate to the anti-condensation angle. The electric heating device is driven by the electric heating driving device to rotate to a plurality of angles Wj in the rotation range thereof, for each angle Wj, the detection module driving device drives the detection module to rotate around the electric heating device, at least two parameters around the electric heating device are detected in the rotation of the detection module, the maximum value Tmaxj and the minimum value Tminj of the at least two parameters corresponding to the angles Wj of the electric heating device are determined, the difference between the maximum value Tmaxj and the minimum value Tminj is calculated, the temperature field around the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is most uniform, and the angle Wj is taken as the anti-condensation angle of the electric heating device, so that the generation of condensation can be reduced as much as possible. The present application can avoid or reduce the problem of condensation of the electric heating device during the refrigeration or dehumidification operation of the air conditioner. The electric heating device is controlled to rotate to a plurality of angles, and the detection module is controlled to rotate around the electric heating device to detect parameters for each angle, the anti-condensation angle is directly determined according to the rotation angle of the electric heating device and the detection parameters, the anti-condensation angle is first found, the electric heating device is directly controlled to reach the anti-condensation angle, and the electric heating device does not need to rotate to a set angle to find the anti-condensation angle, so that the anti-condensation efficiency is high.

[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 an indoor unit of an air conditioner according to an embodiment of the present application.

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

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

[0045] Figure 4 is a side view of Figure 3 .

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

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

[0048] Figure 7 is a flow chart of a specific embodiment three 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] 41, support;

[0055] 42, slide rail;

[0056] 5, electric heating driving device;

[0057] 6, detection module driving device. DETAILED DESCRIPTION

[0058] 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 these 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.

[0059] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating the direction or positional relationship of the terms 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.

[0060] 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", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0061] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0062] As shown in Figures 1-4 , the air conditioner comprises, in sequence in the direction of air flow, an evaporator 1, an electric heating device 2 and a cross-flow fan 3 in a housing.

[0063] In Figure 1 , when the air conditioner is in cooling or dehumidifying operation, the temperatures in the upper space, the lower space, the left side space and the right side space of the electric heating device 2 are not consistent. When the detected temperatures of the two areas around the electric heating device satisfy the following condition: the temperature of the area with lower temperature around the electric heating device is lower than the dew point temperature of the area with 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, and the condensate water will directly drip and be blown out by the cross-flow fan after accumulation for a period of time.

[0064] During the operation of the air conditioner, different operating conditions, 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.

[0065] 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, while 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 satisfy the condensation condition is the purpose of the present application.

[0066] The air conditioner comprises the electric heating device 2 and an electric heating driving device 5 for driving the electric heating device 2 to rotate so as to adjust the angle of the electric heating device 2.

[0067] 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, and 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.

[0068] The electric heating driving device 5 generally drives the electric heating device 2 to alternately rotate in forward and reverse directions within a rotation range, that is, the electric heating driving device 5 drives the electric heating device 2 to rotate in a forward direction from an initial angle to a terminal angle, so that the electric heating device rotates one circle within the rotation range, and the electric heating driving device 5 drives the electric heating device 2 to rotate in a reverse direction from the terminal angle to the initial angle, so that the electric heating device rotates one circle within the rotation range. In this way, the electric heating wire can be prevented from being wound.

[0069] The air conditioner comprises a detection module 4 and a detection module driving device 6, the detection module 4 is arranged around the electric heating device 2, and the detection module driving device 6 is used for driving the detection module 4 to rotate around the electric heating device 5.

[0070] The detection module 4 is arranged at a distance from the electric heating device 2, and is used for detecting parameters around the electric heating device 2.

[0071] In some embodiments, the detection module 4 is generally mounted on a support 41, the support 41 can be arranged in a circular ring shape, the support 41 is provided with a circular ring-shaped sliding groove and a sliding rail 42 sliding along the sliding groove, the detection module 4 is located on the sliding rail 42, and the sliding rail 42 is provided with a rack. The detection module driving device 6 comprises a driving motor, for example, a stepping motor, which is mounted on the support 41. The driving motor drives the sliding rail 42 to slide through cooperation with the rack and a gear.

[0072] The detection module driving device 6 drives the detection module 4 to alternately rotate in forward and reverse directions within a rotation range, that is, the detection module driving device 6 drives the detection module 4 to rotate in a forward direction from an initial angle to a terminal angle, so that the detection module rotates one circle within the rotation range, and the detection module driving device 6 drives the detection module 4 to rotate in a reverse direction from the terminal angle to the initial angle, so that the detection module rotates one circle within the rotation range. In this way, the detection module wire can be prevented from being wound.

[0073] The rotation range of the electric heating device and the rotation range of the detection module can be the same or different.

[0074] In order to reduce the cost, only one detection module 4 is arranged, and the purpose of the present application can also be achieved.

[0075] The present application is described below through specific embodiments.

[0076] Embodiment one

[0077] The air conditioner comprises an electric heating device, an electric heating driving device, a detection module, a detection module driving device and a control module.

[0078] The electric heating driving device is used for driving the electric heating device to rotate.

[0079] The detection module is located around the electric heating device, and is used for detecting parameters around the electric heating device.

[0080] The detection module driving device is used to drive the detection module to rotate around the electric heating device.

[0081] The control module is used to detect the condensation condition when the air conditioner is in cooling or dehumidifying operation, control the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj, and drive the detection module to rotate around the electric heating device by the detection module driving device to obtain at least two parameters detected by the detection module during the rotation of the detection module when the electric heating device is at each angle Wj. The rotation of the detection module can be continuous rotation or angle rotation.

[0082] When the electric heating device is at the angle Wj, the detection module driving device drives the detection module to continuously rotate around the electric heating device, and the detection module detects the parameters in real time to form a parameter curve Xj, so as to improve the accuracy of the temperature distribution detection. When the detection module driving device drives the detection module to rotate around the electric heating device at an angle, the detection module driving device drives the detection module to rotate to a plurality of different positions, and the detection module detects the parameters at the corresponding positions.

[0083] In some embodiments, the rotation angle range of the electric heating device is divided into n angles, and the size of a single angle is D. When the electric heating device is at each angle, the detection module driving device drives the detection module to rotate around the electric heating device, preferably one rotation, and the detection module detects the parameters to form a parameter curve. The electric heating driving device drives the electric heating device to pause at each angle for a short time.

[0084] As shown in Figure 1 , 4 , this embodiment takes the division of the rotation angle of the electric heating device into 12 angles as an example for illustration:

[0085] When the electric heating device is at the angle W1, the parameters detected by the detection module form a parameter curve X1.

[0086] When the electric heating device is at the angle W2, the parameters detected by the detection module form a parameter curve X2.

[0087] …

[0088] When the electric heating device is at the angle Wj, the parameters detected by the detection module form a parameter curve Xj.

[0089] …

[0090] When the electric heating device is at the angle W12, the parameters detected by the detection module form a parameter curve X12.

[0091] Of course, the more the electric heating angle is divided, the more accurate the condensation prevention angle is determined, but the calculation is more complex.

[0092] The control module is used to enter the condensation condition judgment after the condensation condition detection is completed, to determine the maximum value Tmaxj and the minimum value Tminj of the angle Wj of the electric heating device corresponding to at least two parameters, to calculate the difference between the maximum value Tmaxj and the minimum value Tminj, and to determine that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is the anti-condensation angle, and to control the electric heating driving device to drive the electric heating device to rotate to the anti-condensation angle.

[0093] The control module is used to control the electric heating driving device to drive the electric heating device to rotate in the initial angle to (180 degrees-initial angle) rotation range in the condensation condition detection. Figure 4 As shown in the figure, the angles W1-W6 of the electric heating device in the 0-180 degree rotation range are completely the same as the angles W7-W12 of the electric heating device in the 180-360 degree rotation range, and it is unnecessary to repeat the calculation, so that only the rotation of the electric heating device in the 0-180 degree rotation range and the acquisition of the parameter curve of the parameter detected by the detection module at a specific angle are needed, which can reduce the calculation amount of the control module. The control module is used to drive the detection module to rotate from the initial angle to the terminal angle or from the terminal angle to the initial angle by the detection module driving device when the electric heating device is located at each angle Wj, and the detection module detects the parameter in real time to form the parameter curve Xj during the rotation of the detection module, so as to comprehensively acquire the surrounding temperature distribution of the electric heating device at each angle.

[0094] The control module is used to determine whether the operating parameters of the air conditioner change when the electric heating device is located at the anti-condensation angle, and to perform the condensation condition detection after the air conditioner operates according to the changed operating parameters for a set time.

[0095] The operating parameters of the air conditioner include the air speed, the position of the air deflector, the operating frequency of the compressor (related to the user-set temperature and the ambient temperature), etc.

[0096] Due to the change of the operating parameters of the air conditioner, the parameters around the electric heating device change after the operation according to the changed operating parameters, in order to avoid the condensation, the anti-condensation angle of the electric heating device is determined again after entering the condensation condition detection step, so as to ensure that the electric heating device is always located at the anti-condensation angle with uniform temperature field.

[0097] The embodiment first detects the condensation condition when the air conditioner is cooling or dehumidifying: the electric heating driving device drives the electric heating device to rotate to a plurality of angles Wj in its rotation range, for each angle Wj, the detection module driving device drives the detection module to rotate one circle around the electric heating device, and at least two parameters are detected during the rotation of the detection module, and a parameter curve Xj is preferably detected in real time. The parameter curve Xj reflects the temperature field distribution around the electric heating device at each angle Wj. The temperature field distribution around the electric heating device at a plurality of angles is comprehensively understood, which helps to determine the optimal anti-condensation angle. After the condensation condition detection is completed, the control module judges the condensation condition: the maximum value Tmaxj and the minimum value Tminj of the at least two parameters corresponding to the angles Wj of the plurality of electric heating devices are determined, the difference between the maximum value Tmaxj and the minimum value Tminj is calculated, and whether the temperature field distribution around the electric heating device is uniform is reflected by the difference between the maximum value Tmaxj and the minimum value Tminj. The smaller the difference, the more uniform the temperature field distribution, and the smaller the risk of condensation of the electric heating device. Therefore, the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is the anti-condensation angle, and the electric heating driving device drives the electric heating device to rotate to the anti-condensation angle. The anti-condensation angle found in the embodiment can ensure that the temperature field around the electric heating device is uniformly distributed, and can avoid or reduce condensation of the electric heating device.

[0098] The control method of the air conditioner is:

[0099] The air conditioner is in cooling or dehumidifying operation;

[0100] The condensation condition detection step: the electric heating driving device drives the electric heating device to rotate to a plurality of angles Wj, and the detection module driving device drives the detection module to rotate around the electric heating device when the electric heating device is at each angle Wj, and at least two parameters are detected during the rotation of the detection module;

[0101] The condensation condition judgment step: the maximum value Tmaxj and the minimum value Tminj of the at least two parameters corresponding to the angles Wj of the plurality of electric heating devices are determined, the difference between the maximum value Tmaxj and the minimum value Tminj is calculated, the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is determined as the anti-condensation angle, and the electric heating driving device drives the electric heating device to rotate to the anti-condensation angle.

[0102] In the air conditioner refrigeration or dehumidification operation, the electric heating driving device drives the electric heating device to rotate to a plurality of angles Wj in its rotation range, for each angle Wj, the detection module driving device drives the detection module to rotate around the electric heating device for one circle, at least two parameters are detected during the rotation of the detection module, preferably real-time detection to form a parameter curve Xj, the parameter curve formed by the parameters detected by the detection module 4 when the electric heating device 2 is at a specific angle can reflect whether the temperature field around the electric heating device 2 is uniform at this time, the maximum value Tmaxj and the minimum value Tminj of the parameters detected by the detection module corresponding to the angles Wj of the plurality of electric heating devices are determined, and when the difference between the maximum value Tmaxj and the minimum value Tminj is the smallest, it means that the temperature field around the electric heating device 2 is the most uniform, therefore, the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is selected as the anti-condensation angle, and the electric heating device is controlled to rotate to the anti-condensation angle, which can ensure that the temperature field around the electric heating device is uniformly distributed, avoid or reduce the alternating mixing of cold and hot air around the electric heating device to cause uneven temperature field, and avoid or reduce the electric heating device to produce condensation water and drop.

[0103] As shown in Figure 5 , the control method of the air conditioner of the embodiment is:

[0104] S1, the air conditioner is in refrigeration or dehumidification operation.

[0105] S2, control the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj, and when the electric heating device is at each angle Wj, the detection module driving device drives the detection module to rotate around the electric heating device, and at least two parameters detected during the rotation of the detection module are obtained.

[0106] S3, determine the maximum value Tmaxj and the minimum value Tminj of the at least two parameters corresponding to the angles Wj of the plurality of electric heating devices, and calculate the difference between the maximum value Tmaxj and the minimum value Tminj.

[0107] S4, determine the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj as the anti-condensation angle.

[0108] S5, the electric heating driving device drives the electric heating device to rotate to the anti-condensation angle.

[0109] In step S5, the electric heating device is at the anti-condensation angle, and the temperature field around the electric heating device is uniformly distributed, which will not cause the electric heating device to condense.

[0110] In some embodiments, in the condensation condition detection, the electric heating driving device drives the electric heating device to rotate in the rotation range from the initial angle to (180 degrees-initial angle). As Figure 4As shown, the angles W1-W6 of the electric heating device in the 0-180 degree rotation range are completely same as the angles W7-W12 of the electric heating device in the 180-360 degree rotation range, and it is unnecessary to repeat calculation, thus, only the parameter curve formed by the detection module detecting parameters at specific angles in the 0-180 degree rotation range of the electric heating device needs to be controlled, and the calculation amount of the control module can be reduced. When the electric heating device is located at each angle Wj, the detection module driving device drives the detection module to rotate from the initial angle to the terminal angle or from the terminal angle to the initial angle, and the detection module detects parameters in real time to form a parameter curve Xj during the rotation of the detection module, so as to comprehensively acquire the surrounding temperature distribution of the electric heating device at each angle.

[0111] In some embodiments, when the electric heating device is located at the anti-condensation angle, it is judged whether the operating parameter of the air conditioner changes, and when the operating parameter of the air conditioner changes, the air conditioner is operated according to the changed operating parameter for a set time before entering the condensation condition detection step.

[0112] The operating parameter of the air conditioner includes the air speed, the position of the air deflector, the operating frequency of the compressor (related to the user-set temperature and the ambient temperature), etc.

[0113] Due to the change of the operating parameter of the air conditioner, the parameter around the electric heating device changes after the air conditioner is operated according to the changed operating parameter, in order to avoid condensation, the anti-condensation angle of the electric heating device is re-determined after entering the condensation condition detection step, so as to ensure that the electric heating device is always located at the anti-condensation angle with uniform temperature field.

[0114] Embodiment Two

[0115] The air conditioner comprises an electric heating device, an electric heating driving device, a detection module, a detection module driving device, and a control module.

[0116] The detection module 4 comprises a temperature sensor located around the electric heating device.

[0117] Specifically, the detection module 4 comprises a temperature sensor arranged around the electric heating device, and the temperature sensor is a certain distance away from the electric heating device, and is used for measuring the air temperature around the electric heating device.

[0118] The control module is used for detecting the condensation condition when the air conditioner is operated in refrigeration or dehumidification, and is used for controlling the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj, and is used for driving the temperature sensor to rotate around the electric heating device by the detection module driving device to acquire at least two temperatures detected by the temperature sensor when the electric heating device is located at each angle Wj.

[0119] Preferably, when the electric heating device is at angle Wj, the detection module drives the temperature sensor to rotate around the electric heating device, and the temperature sensor detects the temperature in real time to form a temperature curve Xj, so as to improve the accuracy of the detection of the temperature distribution.

[0120] In some embodiments, the rotation angle range of the electric heating device is divided into n angles, and the size of each angle is D. When the electric heating device is at each angle, the detection module drives the temperature sensor to rotate around the electric heating device, preferably one circle, and the temperature sensor detects the temperature to obtain a temperature curve. The electric heating driving device drives the electric heating device to pause for a short time at each angle.

[0121] As shown in Figure 1 , 4 , this embodiment takes the division of the rotation angle of the electric heating device into 12 angles as an example for illustration:

[0122] When the electric heating device is at angle W1, the temperature detected by the temperature sensor forms a temperature curve X1;

[0123] When the electric heating device is at angle W2, the temperature detected by the temperature sensor forms a temperature curve X2;

[0124] …

[0125] When the electric heating device is at angle Wj, the temperature detected by the temperature sensor forms a temperature curve Xj;

[0126] …

[0127] When the electric heating device is at angle W12, the temperature detected by the temperature sensor forms a temperature curve X12.

[0128] Of course, the more the electric heating angle is divided, the more accurate the anti-condensation angle is determined, but the calculation is more complex.

[0129] The control module is used for entering the condensation condition judgment after the condensation condition detection is completed: for determining the maximum temperature Tmaxj and the minimum temperature Tminj corresponding to the angle Wj of the electric heating device, for calculating the difference between the maximum temperature Tmaxj and the minimum temperature Tminj, for determining that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj is the anti-condensation angle, and for controlling the electric heating driving device to drive the electric heating device to rotate to the anti-condensation angle.

[0130] The control module is used for controlling the electric heating driving device to drive the electric heating device to rotate in the rotation range from the initial angle to (180 degrees-initial angle) in the condensation condition detection. As shown in Figure 4As shown, the angles W1-W6 of the electric heating device in the 0-180 degree rotation range are completely same as the angles W7-W12 of the electric heating device in the 180-360 degree rotation range, and it is unnecessary to repeat the calculation, thus, only the temperature curve formed by the temperature detected by the temperature sensor when the electric heating device rotates in the 0-180 degree rotation range and at a specific angle is needed to be controlled, the calculation amount of the control module can be reduced. The control module is used to drive the temperature sensor to rotate from the initial angle to the terminal angle or from the terminal angle to the initial angle by the detection module driving device when the electric heating device is located at each angle Wj, the temperature curve Xj is formed by the temperature sensor in real time during the rotation of the temperature sensor, so as to comprehensively acquire the surrounding temperature distribution when the electric heating device is located at each angle.

[0131] The control module is used to judge whether the running parameter of the air conditioner changes when the electric heating device is located at the anti-condensation angle, and is used to detect the condensation condition again after the air conditioner runs according to the changed running parameter for a set time.

[0132] The running parameter of the air conditioner includes the air speed, the position of the air deflector, the running frequency of the compressor (related to the user set temperature and the environment temperature), etc.

[0133] Due to the change of the running parameter of the air conditioner, the parameter around the electric heating device changes after running according to the changed running parameter, in order to avoid the condensation, the anti-condensation angle of the electric heating device is re-determined after entering the condensation condition detection step, so as to ensure that the electric heating device is always located at the anti-condensation angle with uniform temperature field.

[0134] The embodiment first detects the condensation condition when the air conditioner is cooling or dehumidifying: the electric heating driving device drives the electric heating device to rotate to a plurality of angles Wj in its rotation range, for each angle Wj, the detection module drives the temperature sensor to rotate around the electric heating device, and detects at least two temperatures during the rotation of the temperature sensor, and preferably detects in real time to form a temperature curve Xj. The temperature curve Xj reflects the temperature field distribution around the electric heating device at each angle Wj. A comprehensive understanding of the temperature field distribution around the electric heating device at a plurality of angles helps to determine the optimal anti-condensation angle. After the condensation condition detection is completed, the control module judges the condensation condition: determines the maximum temperature Tmaxj and the minimum temperature Tminj corresponding to the plurality of angles Wj of the electric heating device, calculates the difference between the maximum temperature Tmaxj and the minimum temperature Tminj, and reflects whether the temperature field distribution around the electric heating device is uniform through the difference between the maximum temperature Tmaxj and the minimum temperature Tminj. The smaller the difference, the more uniform the temperature field distribution, and the smaller the risk of condensation of the electric heating device. Therefore, the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj is the anti-condensation angle, and the electric heating driving device drives the electric heating device to rotate to the anti-condensation angle. The anti-condensation angle found in the embodiment can ensure that the temperature field around the electric heating device is uniformly distributed, and can avoid or reduce condensation of the electric heating device.

[0135] The control method of the air conditioner is:

[0136] The air conditioner is in cooling or dehumidifying operation;

[0137] The condensation condition detection step: the electric heating driving device drives the electric heating device to rotate to a plurality of angles Wj, and the detection module drives the temperature sensor to rotate around the electric heating device to obtain at least two temperatures detected during the rotation of the temperature sensor when the electric heating device is at each angle Wj;

[0138] The condensation condition judgment step: determining the maximum temperature Tmaxj and the minimum temperature Tminj corresponding to the plurality of angles Wj of the electric heating device, calculating the difference between the maximum temperature Tmaxj and the minimum temperature Tminj, determining the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj as the anti-condensation angle, and driving the electric heating device to rotate to the anti-condensation angle by the electric heating driving device.

[0139] In the air conditioner refrigeration or dehumidification operation, the electric heating driving device drives the electric heating device to rotate to a plurality of angles Wj, and when the electric heating device is located at each angle Wj, the detection module drives the temperature sensor to rotate around the electric heating device for one circle, and the temperature sensor detects at least two temperatures during the rotation, preferably real-time detection to form a temperature curve Xj. The temperature curve detected by the temperature sensor when the electric heating device 2 is at a specific angle can reflect whether the temperature field around the electric heating device 2 is uniform at this time, and the maximum temperature Tmaxj and the minimum temperature Tminj of the temperature detected by the temperature sensor corresponding to the angle Wj of the plurality of electric heating devices are determined. When the difference between the maximum temperature Tmaxj and the minimum temperature Tminj is the smallest, it means that the temperature field around the electric heating device 2 is the most uniform. Therefore, the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj is selected as the anti-condensation angle, and the electric heating device is controlled to rotate to the anti-condensation angle, which can ensure the uniform distribution of the temperature field around the electric heating device, avoid or reduce the alternating mixing of cold and hot air around the electric heating device to cause uneven temperature field, and avoid or reduce the condensation water generated by the electric heating device and dripping.

[0140] As shown in Figure 6 , the control method of the air conditioner of the embodiment is:

[0141] S1, the air conditioner is in refrigeration or dehumidification operation.

[0142] S2, control the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj, and when the electric heating device is located at each angle Wj, the detection module drives the temperature sensor to rotate around the electric heating device, and obtains at least two temperatures detected by the temperature sensor during the rotation.

[0143] S3, determine the maximum temperature Tmaxj and the minimum temperature Tminj of the at least two temperatures corresponding to the angle Wj of the plurality of electric heating devices, and calculate the difference between the maximum temperature Tmaxj and the minimum temperature Tminj.

[0144] S4, determine the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj as the anti-condensation angle.

[0145] S5, the electric heating driving device drives the electric heating device to rotate to the anti-condensation angle.

[0146] In step S5, the electric heating device is at the anti-condensation angle, and the temperature field around the electric heating device is uniformly distributed, which will not cause the electric heating device to condense.

[0147] In some embodiments, in the condensation condition detection, the electric heating driving device drives the electric heating device to rotate in the rotation range from the initial angle to (180 degrees-initial angle). As shown inFigure 4 As shown, the angles W1-W6 of the electric heating device in the 0-180 degree rotation range are completely identical to the angles W7-W12 of the electric heating device in the 180-360 degree rotation range, and it is unnecessary to repeat the calculation, and thus, only the rotation of the electric heating device in the 0-180 degree rotation range and the temperature detected by the temperature sensor need to be controlled, and the calculation amount of the control module can be reduced. When the electric heating device is located at each angle Wj, the detection module drives the temperature sensor to rotate from the initial angle to the terminal angle or from the terminal angle to the initial angle, and the temperature sensor detects the temperature in real time during the rotation of the temperature sensor to form a temperature curve Xj, so as to comprehensively obtain the ambient temperature distribution when the electric heating device is located at each angle.

[0148] In some embodiments, when the electric heating device is located at the anti-condensation angle, it is judged whether the operating parameter of the air conditioner changes, and when the operating parameter of the air conditioner changes, the anti-condensation condition detection step is entered again after the air conditioner is operated according to the changed operating parameter for a set time.

[0149] The operating parameter of the air conditioner includes the air speed, the position of the air deflector, the operating frequency of the compressor (related to the user-set temperature and the ambient temperature), and the like.

[0150] Due to the change of the operating parameter of the air conditioner, the temperature around the electric heating device changes after the air conditioner is operated according to the changed operating parameter, and in order to avoid condensation, the anti-condensation angle of the electric heating device is determined again after the anti-condensation condition detection step is entered, so as to ensure that the electric heating device is always located at the anti-condensation angle with uniform temperature field.

[0151] Embodiment Three

[0152] In this embodiment, the detection module 4 includes one temperature sensor and one humidity sensor located around the electric heating device. The detection module driving device drives at least the temperature sensor to rotate around the electric heating device.

[0153] The installation position of the humidity sensor is not limited, and the humidity sensor can be fixedly installed in the air conditioner, or the humidity sensor can rotate synchronously with the temperature sensor.

[0154] 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.

[0155] The humidity sensor is a certain distance away from the electric heating device, and is used to measure the air humidity around the electric heating device.

[0156] The control module is used for detecting the condensation condition when the air conditioner is in cooling or dehumidifying operation: obtaining the humidity S detected by the humidity sensor; controlling the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj; and driving the temperature sensor to rotate around the electric heating device by the detection module when the electric heating device is at each angle Wj, and obtaining at least two temperatures detected by the temperature sensor.

[0157] Preferably, when the electric heating device is at the angle Wj, the detection module drives the temperature sensor to rotate around the electric heating device, and the temperature sensor detects the temperature in real time to form a temperature curve Xj, so as to improve the accuracy of the temperature distribution detection.

[0158] In some embodiments, the rotation angle range of the electric heating device is divided into n angles, and the size of a single angle is D. When the electric heating device is at each angle, the detection module drives the temperature sensor to rotate around the electric heating device, preferably one circle, and the temperature sensor detects the temperature to obtain a temperature curve. The electric heating driving device drives the electric heating device to pause at each angle for a short time.

[0159] As shown in Figure 1 , 4 , this embodiment takes the electric heating device with 12 divided angles as an example for description:

[0160] The humidity sensor detects the humidity S;

[0161] When the electric heating device is at the angle W1, the temperature detected by the temperature sensor forms a temperature curve X1;

[0162] When the electric heating device is at the angle W2, the temperature detected by the temperature sensor forms a temperature curve X2;

[0163] …

[0164] When the electric heating device is at the angle Wj, the temperature detected by the temperature sensor forms a temperature curve Xj;

[0165] …

[0166] When the electric heating device is at the angle W12, the temperature detected by the temperature sensor forms a temperature curve X12.

[0167] Of course, the more the electric heating angles are divided, the more accurate the anti-condensation angle is determined, but the calculation is more complex.

[0168] The control module is used to enter the condensation condition judgment after the condensation condition detection is completed: used to determine the maximum temperature Tmaxj and the minimum temperature Tminj of the angle Wj of the electric heating device corresponding to at least two temperatures, determine the dew point temperature Kj according to the maximum temperature Tmaxj and the humidity S; used to determine that the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| is the anti-condensation angle, and control the electric heating driving device to drive the electric heating device to rotate to the anti-condensation angle.

[0169] The control module is used to control the electric heating driving device to drive the electric heating device to rotate in the initial angle to (180 degrees-initial angle) rotation range in the condensation condition detection. As shown in Figure 4 The angles W1-W6 of the electric heating device in the 0-180 degree rotation range are completely the same as the angles W7-W12 of the electric heating device in the 180-360 degree rotation range, and it is not necessary to repeat the calculation, so that only the temperature curve formed by the temperature detected by the temperature sensor at the specific angle when the electric heating device rotates in the 0-180 degree rotation range needs to be controlled, which can reduce the calculation amount of the control module. The control module is used to drive the temperature sensor to rotate from the initial angle to the terminal angle or from the terminal angle to the initial angle by the driving device of the detection module when the electric heating device is located at each angle Wj, and the temperature sensor detects the temperature in real time to form a temperature curve Xj during the rotation of the temperature sensor, so as to comprehensively obtain the ambient temperature distribution of the electric heating device at each angle.

[0170] The control module is used to judge whether the running parameters of the air conditioner change when the electric heating device is located at the anti-condensation angle, and is used to perform the condensation condition detection after the air conditioner runs according to the changed running parameters for a set time when the running parameters of the air conditioner change.

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

[0172] Due to the change of the running parameters of the air conditioner, the parameters around the electric heating device change after running according to the changed running parameters, in order to avoid condensation, the anti-condensation angle of the electric heating device is determined again after entering the condensation condition detection step, so as to ensure that the electric heating device is always at the anti-condensation angle with uniform temperature field.

[0173] The embodiment first detects the condensation condition when the air conditioner is cooling or dehumidifying: obtaining the humidity S detected by the humidity sensor, controlling the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj in its rotation range, for each angle Wj, the detection module drives the temperature sensor to rotate around the electric heating device, and at least two temperatures are detected during the rotation of the temperature sensor, and a temperature curve Xj is formed by real-time detection. The temperature curve Xj reflects the temperature field distribution of the electric heating device around it at each angle Wj. A comprehensive understanding of the temperature field distribution of the electric heating device around it at a plurality of angles helps to determine the optimal anti-condensation angle. After the condensation condition detection is completed, the control module judges the condensation condition: determines the maximum temperature Tmaxj and the minimum temperature Tminj corresponding to the plurality of angles Wj of the electric heating device, and determines the dew point temperature Kj according to the maximum temperature Tmaxj and the humidity S; the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| is the anti-condensation angle, and the size of |Kj-Tminj| reflects whether the temperature field distribution around the electric heating device is uniform, the smaller the difference, the more uniform the temperature field distribution, and the smaller the risk of condensation of the electric heating device. Therefore, the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| is the anti-condensation angle, and the electric heating driving device is controlled to drive the electric heating device to rotate to the anti-condensation angle. The anti-condensation angle 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.

[0174] The control method of the air conditioner is:

[0175] The air conditioner is cooled or dehumidified;

[0176] The condensation condition detection step: obtaining the humidity S detected by the humidity sensor, controlling the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj, and driving the temperature sensor to rotate around the electric heating device when the electric heating device is at each angle Wj, and obtaining at least two temperatures detected during the rotation of the temperature sensor;

[0177] The condensation condition judgment step: determining the maximum temperature Tmaxj and the minimum temperature Tminj corresponding to the plurality of angles Wj of the electric heating device, and determining the dew point temperature Kj according to the maximum temperature Tmaxj and the humidity S; the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| is the anti-condensation angle, and the electric heating driving device drives the electric heating device to rotate to the anti-condensation angle.

[0178] In the air conditioner refrigeration or dehumidification operation, the humidity detected by the humidity sensor is obtained, the electric heating driving device is controlled to drive the electric heating device to rotate to a plurality of angles Wj in its rotation range, when the electric heating device is located at each angle Wj, the temperature sensor is driven to rotate a circle around the electric heating device by the detection module driving device, at least two temperatures are detected during the rotation of the temperature sensor, preferably real-time detection to form a temperature curve Xj, the temperature curve detected by the temperature sensor when the electric heating device 2 is at a specific angle can reflect whether the temperature field around the electric heating device 2 is uniform at this time, the maximum temperature Tmaxj and the minimum temperature Tminj of the temperature detected by the temperature sensor corresponding to the angle Wj of the plurality of electric heating devices are determined, and the dew point temperature Kj is determined according to the maximum temperature Tmaxj and the humidity S; when the minimum value of |Kj-Tminj| is determined, it is indicated that the temperature field around the electric heating device 2 is the most uniform, therefore, the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| is selected as the anti-condensation angle, and the electric heating device is controlled to rotate to the anti-condensation angle, which can ensure that the temperature field around the electric heating device is uniformly distributed, avoid or reduce the alternating mixing of cold and hot air around the electric heating device to cause uneven temperature field, and avoid or reduce the condensation water generated by the electric heating device and dripping.

[0179] As shown in Figure 7 , the control method of the air conditioner of the embodiment is:

[0180] S1, the air conditioner is in refrigeration or dehumidification operation.

[0181] S2, obtaining the humidity S detected by the humidity sensor; controlling the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj, when the electric heating device is located at each angle Wj, the temperature sensor is driven to rotate around the electric heating device by the detection module driving device, and at least two temperatures detected during the rotation of the temperature sensor are obtained.

[0182] S3, determining the maximum temperature Tmaxj and the minimum temperature Tminj of the at least two temperatures corresponding to the angle Wj of the plurality of electric heating devices, and determining the dew point temperature Kj according to the maximum temperature Tmaxj and the humidity S.

[0183] S4, the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| is the anti-condensation angle.

[0184] S5, the electric heating driving device drives the electric heating device to rotate to the anti-condensation angle.

[0185] In step S5, the anti-condensation angle of the electric heating device, the temperature field around the electric heating device is uniformly distributed, and the electric heating device will not cause condensation.

[0186] In some embodiments, the electric heating driving device drives the electric heating device to rotate in the initial angle to (180 degrees-initial angle) rotation range in the condensation condition detection. As shown in Figure 4 The angles W1-W6 of the electric heating device in the 0-180 degree rotation range are completely same as the angles W7-W12 of the electric heating device in the 180-360 degree rotation range, and it is unnecessary to repeat the calculation, thus, only the rotation of the electric heating device in the 0-180 degree rotation range and the temperature detected by the temperature sensor are needed, and the calculation amount of the control module can be reduced. When the electric heating device is at each angle Wj, the detection module drives the temperature sensor to rotate from the initial angle to the terminal angle or from the terminal angle to the initial angle, and the temperature sensor detects the temperature in real time during the rotation of the temperature sensor to form a temperature curve Xj, so as to comprehensively obtain the ambient temperature distribution when the electric heating device is at each angle.

[0187] In some embodiments, when the electric heating device is at the anti-condensation angle, it is judged whether the running parameters of the air conditioner change, and when the running parameters of the air conditioner change, the running parameters are changed and the condensation condition detection step is entered after a set time.

[0188] The running parameters of the air conditioner include the air speed, the position of the air deflector, the running frequency of the compressor (related to the user set temperature and the ambient temperature), etc.

[0189] Due to the change of the running parameters of the air conditioner, the temperature around the electric heating device changes after the running according to the changed running parameters, in order to avoid condensation, the anti-condensation angle of the electric heating device is re-determined after entering the condensation condition detection step, so as to ensure that the electric heating device is always at the anti-condensation angle with uniform temperature field.

[0190] In this embodiment, the electric heating device is increased with the electric heating driving device, so that the electric heating device can adjust the angle in the actual running of the air conditioner. The temperature sensor and the humidity sensor arranged around the electric heating device are matched to monitor whether the temperature field around the electric heating device is uniform, and the electric heating angle with the most uniform temperature field around the electric heating device is selected as the anti-condensation angle to avoid or reduce the generation of condensation. 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.

[0191] The above merely describes preferred embodiments of the present application, but is not intended to limit the present application to other forms, and any person skilled in the art can make changes or modifications to the above disclosed technical contents into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution content of the present application and according to the technical essence of the present application still belongs to the protection scope of the technical solution 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; a detection module driving device for driving the detection module to rotate around the electric heating device; a control module for, when the air conditioner is in cooling or dehumidifying operation, performing condensation condition detection, for controlling the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj, for driving the detection module to rotate around the electric heating device by the detection module driving device when the electric heating device is at each angle Wj, and for obtaining at least two parameters detected by the detection module during the rotation of the detection module; for entering condensation condition judgment after the condensation condition detection is completed, for determining maximum value Tmaxj and minimum value Tminj of the at least two parameters corresponding to a plurality of angles Wj of the electric heating device, for calculating the difference between the maximum value Tmaxj and the minimum value Tminj, and for determining that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is a condensation-preventing angle, and controlling the electric heating driving device to drive the electric heating device to rotate to the condensation-preventing angle.

2. The air conditioner of claim 1, wherein The detection module comprises a temperature sensor arranged around the electric heating device; a control module for, when the air conditioner is in cooling or dehumidifying operation, performing condensation condition detection, for controlling the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj, for driving the temperature sensor to rotate around the electric heating device by the detection module driving device when the electric heating device is at each angle Wj, and for obtaining at least two temperatures detected by the temperature sensor during the rotation of the temperature sensor; for entering condensation condition judgment after the condensation condition detection is completed, for determining maximum temperature Tmaxj and minimum temperature Tminj of the at least two temperatures corresponding to a plurality of angles Wj of the electric heating device, for calculating the difference between the maximum temperature Tmaxj and the minimum temperature Tminj, and for determining that the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj is a condensation-preventing angle, and controlling the electric heating driving device to drive the electric heating device to rotate to the condensation-preventing angle.

3. The air conditioner of claim 1, wherein The detection module comprises a humidity sensor and a temperature sensor arranged around the electric heating device, and the detection module driving device drives at least the temperature sensor to rotate around the electric heating device; a control module for, when the air conditioner is in cooling or dehumidifying operation, performing condensation condition detection, for obtaining humidity S detected by the humidity sensor; for controlling the electric heating driving device to drive the electric heating device to rotate to a plurality of angles Wj, for driving the temperature sensor to rotate around the electric heating device by the detection module driving device when the electric heating device is at each angle Wj, and for obtaining at least two temperatures detected by the temperature sensor during the rotation of the temperature sensor; The control module is used for determining whether the operation parameter of the air conditioner is changed when the electric heating device is located at the anti-condensation angle, and is used for operating according to the changed operation parameter after a set time.

4. The air conditioner according to any one of claims 1 to 3, characterized by The control module is used for controlling the electric heating driving device to drive the electric heating device to rotate within a rotation range from an initial angle to (180 degrees-initial angle) in the condensation condition detection, and is used for driving the detection module to rotate from the initial angle to a terminal angle or from the terminal angle to the initial angle by the detection module driving device when the electric heating device is located at each angle Wj, so that the detection module detects parameters in real time to form a parameter curve during the rotation of the detection module.

5. The air conditioner according to any one of claims 1 to 3, wherein The air conditioner comprises an electric heating device, an electric heating driving device, a detection module and a detection module driving device.

6. A control method of an air conditioner, characterized by, The electric heating driving device is used for driving the electric heating device to rotate, the detection module is located around the electric heating device, the detection module driving device is used for driving the detection module to rotate around the electric heating device, and the control method is as follows: The air conditioner is operated in refrigeration or dehumidification; The condensation condition detection step is as follows: the electric heating driving device is controlled to drive the electric heating device to rotate to a plurality of angles Wj, the detection module driving device is controlled to drive the detection module to rotate around the electric heating device when the electric heating device is located at each angle Wj, and at least two parameters detected during the rotation of the detection module are acquired; The condensation condition judgment step is as follows: the maximum value Tmaxj and the minimum value Tminj of at least two parameters corresponding to a plurality of angles Wj of the electric heating device are determined, the difference between the maximum value Tmaxj and the minimum value Tminj is calculated, the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum value Tmaxj and the minimum value Tminj is determined as an anti-condensation angle, and the electric heating driving device is controlled to drive the electric heating device to rotate to the anti-condensation angle. The detection module comprises a temperature sensor arranged around the electric heating device, and the control method is as follows:

7. The control method of the air conditioner according to claim 6, wherein The air conditioner is operated in refrigeration or dehumidification; The condensation condition detection step is as follows: the electric heating driving device is controlled to drive the electric heating device to rotate to a plurality of angles Wj, the detection module driving device is controlled to drive the temperature sensor to rotate around the electric heating device when the electric heating device is located at each angle Wj, and at least two temperatures detected during the rotation of the temperature sensor are acquired. ​ The condensation condition judgment step includes determining maximum temperature Tmaxj and minimum temperature Tminj of at least two temperatures corresponding to the angle Wj of the electric heating device, calculating the difference between the maximum temperature Tmaxj and the minimum temperature Tminj, determining the angle Wj of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmaxj and the minimum temperature Tminj as the anti-condensation angle, and driving the electric heating device to rotate to the anti-condensation angle by the electric heating driving device.

8. The control method of the air conditioner according to claim 6, characterized by, The detection module includes a humidity sensor and a temperature sensor arranged around the electric heating device, and the detection module driving device drives the temperature sensor to rotate around the electric heating device. The air conditioner is in cooling or dehumidifying operation; The condensation condition detection step includes obtaining the humidity S detected by the humidity sensor, driving the electric heating device to rotate to a plurality of angles Wj by the electric heating driving device, driving the temperature sensor to rotate around the electric heating device by the detection module driving device when the electric heating device is at each angle Wj, and obtaining at least two temperatures detected by the temperature sensor during the rotation of the temperature sensor. The condensation condition judgment step includes determining maximum temperature Tmaxj and minimum temperature Tminj of at least two temperatures corresponding to the angle Wj of the electric heating device, determining the dew point temperature Kj according to the maximum temperature Tmaxj and the humidity S, and determining the angle Wj of the electric heating device corresponding to the minimum value of |Kj-Tminj| as the anti-condensation angle, and driving the electric heating device to rotate to the anti-condensation angle by the electric heating driving device.

9. The control method of an air conditioner according to any one of claims 6 to 8, characterized by, When the electric heating device is at the anti-condensation angle, it is determined whether the operating parameters of the air conditioner have changed, and when the operating parameters of the air conditioner have changed, the condensation condition detection step is entered again after a set time of operation according to the changed operating parameters.

10. The control method of an air conditioner according to any one of claims 6 to 8, characterized by, In the condensation condition detection step, the electric heating driving device is controlled to drive the electric heating device to rotate within the rotation range of the initial angle to (180 degrees-initial angle), the detection module driving device is controlled to drive the detection module to rotate from the initial angle to the terminal angle or from the terminal angle to the initial angle when the electric heating device is at each angle Wj, and the detection module detects the parameters in real time to form a parameter curve during the rotation of the detection module.

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