Air conditioner and control method thereof

Abstract

The application provides an air conditioner and a control method thereof. The air conditioner comprises an electric heating device, an electric heating driving device, a detection module and a control module. The control module detects parameters of multiple positions around the electric heating device through the detection module, judges whether the temperature field around the electric heating device is uniform and whether there is a condensation risk through the multiple parameters, drives the electric heating device to rotate by a set angle and maintain at the angle for a set time when there is a condensation risk, and then judges the condensation condition again until the electric heating device does not move when the temperature field around the electric heating device is uniform and the condensation condition is not met. If all the set angles within the rotation range of the electric heating device meet the condensation condition of the electric heating device, the angle of the electric heating device with the least condensation is determined to reduce the generation of condensation as much as possible. The problem of condensation of the electric heating device during the operation of the air conditioner in the refrigeration or dehumidification process can be avoided or reduced.

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 a program. After the air deflector of the indoor unit is turned off, the indoor air fan is operated at a low speed according to a 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 accumulated and 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 that the temperature around the electric heating device is different when the air conditioner is in refrigeration or dehumidification operation, thereby causing condensed water on the electric heating device.

[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;

[0015] A control module for performing condensed water condition detection when the air conditioner is in refrigeration or dehumidification operation: for obtaining parameters detected by the detection module, and for obtaining an angle of the electric heating device;

[0016] for entering condensed water condition judgment after the condensed water condition detection is completed: for controlling the electric heating driving device to drive the electric heating device to rotate at a set angle and maintain at the angle for a set time when the condensed water condition of the electric heating device is met according to the parameters detected by the detection module, and for entering condensed water condition detection again; for controlling the electric heating device to be stationary when the condensed water condition of the electric heating device is not met according to the parameters detected by the detection module; and for determining the parameters detected by the detection module and the angle of the electric heating device corresponding to the parameters when all the set angles of the electric heating device meet the condensed water condition, and for controlling the electric heating device to rotate to the angle of the electric heating device corresponding to the parameters detected by the detection module closest to the condensed water condition.

[0017] The air conditioner as described above, wherein the detection module comprises at least two temperature sensors arranged around the electric heating device, and the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes.

[0018] The control module is configured to, when the air conditioner is operating in cooling or dehumidifying mode, perform condensation condition detection, acquire the temperature detected by the temperature sensor, and acquire the angle of the electric heating device.

[0019] The control module is configured to, after the condensation condition detection is completed, enter condensation condition judgment, determine the maximum temperature Tmax and the 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 and maintain 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, control the electric heating device to be stationary when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, determine the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin and the angle of the electric heating device corresponding to the minimum value when all the set angles of the electric heating device in its rotation range meet the condition that the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, and control the electric heating device to rotate to the angle of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin.

[0020] The air conditioner as described above, wherein the detection module comprises at least two temperature sensors arranged around the electric heating device, and the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes.

[0021] The control module is configured to, when the air conditioner is operating in cooling or dehumidifying mode, perform condensation condition detection, acquire the temperature detected by the temperature sensor, and acquire the angle of the electric heating device.

[0022] The control module is configured to determine a maximum temperature Tmax and a minimum temperature Tmin based on the temperature detected by the temperature sensor, and determine a dew point temperature K based on the maximum temperature Tmax and the humidity S; when the dew point temperature K is higher than the minimum temperature Tmin, the control module is configured to control the electric heating driving device to drive the electric heating device to rotate by a set angle and maintain the angle for a set time, and then re-enter the condensation condition detection; when the dew point temperature K is lower than the minimum temperature Tmin, the control module is configured to control the electric heating device to be stationary; when all the set angles of the electric heating device within its rotation range satisfy the condition that the dew point temperature K is higher than the minimum temperature Tmin, the control module is configured to determine a minimum value of the difference between the dew point temperature K and the minimum temperature Tmin and the angle of the electric heating device corresponding to the minimum value, and control the electric heating device to rotate to the angle of the electric heating device corresponding to the minimum value.

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

[0024] The air conditioner as described above, the control module is configured to perform the condensation condition detection at a regular time after the electric heating device is stationary.

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

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

[0027] A condensation condition detection step: obtaining the parameters detected by the detection module, and obtaining the angle of the electric heating device;

[0028] A condensation condition determination step: when the condensation condition of the electric heating device is met, the electric heating driving device is controlled to drive the electric heating device to rotate by a set angle and maintain the angle for a set time, and then re-enter the condensation condition detection step; when the condensation condition of the electric heating device is not met, the electric heating device is controlled to be stationary; when all the set angles of the electric heating device within its rotation range satisfy the condensation condition of the electric heating device, the parameters detected by the detection module and the angle of the electric heating device corresponding to the parameters are determined, which are closest to the condensation condition, and the electric heating device is controlled to rotate to the angle of the electric heating device corresponding to the parameters.

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

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

[0031] The condensation condition detection step: obtaining the temperature detected by the temperature sensor, obtaining the angle of the electric heating device;

[0032] The condensation condition judgment step: determining the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, the electric heating driving device drives the electric heating device to rotate by a set angle and maintain at the angle for a set time, and then the condensation condition detection step is entered again; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, the electric heating device is not moved; when all the set angles of the electric heating device in its rotation range meet the condition that the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin and the angle of the electric heating device corresponding to the minimum value are determined, and the electric heating device is controlled to rotate to the angle of the electric heating device corresponding to the minimum value.

[0033] The control method of the air conditioner as described above, the detection module comprises at least two temperature sensors arranged around the electric heating device, and the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes; the control method is:

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

[0035] The condensation condition detection step: obtaining the temperature detected by the temperature sensor; obtaining the humidity S detected by the humidity sensor, and obtaining the angle of the electric heating device;

[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, 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 and maintain at the angle for a set time, and then enters the condensation condition detecting step again; when the dew point temperature K is lower than the minimum temperature Tmin, the electric heating device is stationary; when all the set angles in the rotation range of the electric heating device satisfy the condition that the dew point temperature K is higher than the minimum temperature Tmin, determining the minimum value of the difference between the dew point temperature K and the minimum temperature Tmin and the angle of the electric heating device corresponding to the minimum value, and controlling the electric heating device to rotate to the angle of the electric heating device corresponding to the minimum value.

[0037] The control method of the air conditioner as described above, when the electric heating device is stationary, judging whether the operating parameter of the air conditioner changes, when the operating parameter of the air conditioner changes, operating according to the changed operating parameter for a set time, and then entering the condensation condition detecting step.

[0038] The control method of the air conditioner as described above, when the electric heating device is stationary, entering the condensation condition detecting step regularly.

[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, the control module is used to detect the condensation condition when the air conditioner is running in refrigeration or dehumidification, to acquire the parameters detected by the detection module, to acquire the angle of the electric heating device, to judge whether the electric heating device meets the condensation condition according to the parameters detected by the detection module after the condensation condition detection is completed, to control the electric heating driving device to drive the electric heating device to rotate to a set angle and maintain the angle for a set time when the electric heating device meets the condensation condition, and to control the electric heating device to be stationary when the electric heating device does not meet the condensation condition, to determine the parameters detected by the detection module and the angle of the electric heating device corresponding to the parameters when all the set angles of the electric heating device meet the condensation condition when the electric heating device traverses all the set angles in its rotating range, and to control the electric heating device to rotate to the angle of the electric heating device corresponding to the parameters detected by the detection module closest to the condensation condition. The air conditioner detects the parameters of multiple positions around the electric heating device through the detection module, judges whether the temperature field around the electric heating device is uniform and whether there is a condensation risk through the multiple parameters, drives the electric heating device to rotate to a set angle and maintain the angle for a set time when there is a condensation risk, and judges the condensation condition again until the electric heating device is stationary when the temperature field around the electric heating device is uniform and does not meet the condensation condition, and determines the angle of the electric heating device with the least condensation when all the set angles of the electric heating device meet the condensation condition when the electric heating device traverses all the set angles in its rotating range, so as to reduce the generation of condensation as much as possible. The air conditioner can avoid or reduce the problem of condensation of the electric heating device during the refrigeration or dehumidification of the air conditioner.

[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: obtaining parameters detected by a detection module, and obtaining an angle of an electric heating device; a condensation condition judgment step: when the parameters detected by the detection module meet the condensation condition of the electric heating device, driving the electric heating device to rotate by a set angle and maintaining the angle for a set time, and then returning to the condensation condition detection step; when the parameters detected by the detection module do not meet the condensation condition of the electric heating device, the electric heating device is not driven; when all the set angles of the electric heating device in its rotation range meet the condensation condition of the electric heating device, determining the parameters detected by the detection module and the angle of the electric heating device corresponding to the parameters that are closest to the condensation condition, and driving the electric heating device to rotate to the angle of the electric heating device corresponding to the parameters detected by the detection module that are closest to the condensation condition. The control method of the air conditioner detects parameters of multiple positions around the electric heating device through the detection module, judges whether the temperature field around the electric heating device is uniform and whether there is a condensation risk through the multiple parameters, drives the electric heating device to rotate by a set angle and maintains the angle for a set time when there is a condensation risk, and then judges the condensation condition, until the electric heating device is not driven when the temperature field around the electric heating device is uniform and does not meet the condensation condition, and if all the set angles of the electric heating device in its rotation range meet the condensation condition of the electric heating device, the angle of the electric heating device with the least condensation is determined to reduce the generation of condensation 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.

[0041] Other features and advantages of the present application will become more apparent from the following detailed description 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 flowchart of an embodiment one of the present application.

[0046] Figure 5 is a flowchart of an embodiment two of the present application.

[0047] Figure 6 is a flowchart of an embodiment three of the present application.

[0048] Figure 7 is a flowchart of an embodiment four of the present application.

[0049] In the drawings,

[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 broadly, 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. 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.

[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 drawings in the embodiments of the present application.

[0059] As Figures 1-3 shown, 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] In Figure 1In the shown embodiment, the temperatures of 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 are as follows: the temperature of the area with low electric heating ambient temperature is lower than the dew point temperature of the temperature of the area with high electric heating ambient 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.

[0061] During the operation of the air conditioner, different operating states, such as the air speed, the position of the air deflector, and the 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 for refrigeration or dehumidification, the angle of the electric heating device is very important for 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, whereas if the electric heating device is at an angle that causes uniform temperature field distribution around the electric heating device, condensation can be avoided or reduced on the electric heating device 2. 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 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.

[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, 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.

[0065] The air conditioner comprises a detection module 4, and the electric heating device 2 is provided with the detection module 4 around the electric heating device 2.

[0066] When the air conditioner is in refrigeration or dehumidification operation, the detection module 4 detects whether the temperature field around the electric heating device 2 is uniform. When the temperature field is within the set deviation range, the risk of condensation is small, and the electric heating device is fixed at a certain angle. When the temperature field exceeds the set deviation range, the risk of condensation is large, and the electric heating device is driven to rotate by the electric heating driving device. The target is to find a suitable electric heating position to make the temperature field around the electric heating device uniform, avoid or reduce the alternating mixing of cold and hot air around the electric heating device, and prevent or reduce the generation of condensation water and dripping. If the electric heating device meets the condensation condition at all set angles in its rotation range, the electric heating device angle with the least condensation is determined, and the electric heating device is rotated to the electric heating device angle with the least condensation, so as to reduce the generation of condensation as much as possible.

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

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

[0069] The following will be described by specific embodiments:

[0070] Embodiment one

[0071] The air conditioner comprises an electric heating device, an electric heating driving device, a detection module and a control module.

[0072] The electric heating driving device is used to drive the electric heating device to rotate.

[0073] The detection module is located around the electric heating device and is used to detect the parameters around the electric heating device.

[0074] The control module is used to detect the condensation condition when the air conditioner is in refrigeration or dehumidification operation: to obtain the parameters detected by the detection module at at least two positions, and to obtain the angle of the electric heating device.

[0075] The at least two positions are positions where the planes formed by the at least two positions and the rotation axis of the electric heating device are different planes.

[0076] The method for entering the condensation condition detection after the condensation condition detection is completed: judging whether the electric heating device meets the condensation condition according to the parameters detected by the detection module, controlling the electric heating driving device to drive the electric heating device to rotate at a set angle and maintain the angle for a set time, and then entering the condensation condition detection; judging whether the electric heating device meets the condensation condition according to the parameters detected by the detection module, and controlling the electric heating device to be stationary; when all the set angles of the electric heating device in its rotation range meet the condensation condition of the electric heating device, determining the parameters detected by the detection module and the corresponding angle of the electric heating device closest to the condensation condition, and controlling the electric heating device to rotate to the angle of the electric heating device corresponding to the parameters detected by the detection module closest to the condensation condition.

[0077] In the embodiment, when all the set angles of the electric heating device in its rotation range meet the condensation condition of the electric heating device, it means that the electric heating device rotates between the lower limit and the upper limit of the rotation angle, rotates at the set angle, and detects the condensation condition after rotating at the set angle for a set time. When all the angles of the electric heating device that are detected meet the condensation condition of the electric heating device, the angles of the electric heating device that are detected will all produce condensation. At this time, the angle of the electric heating device with the least condensation is selected to minimize the generation of condensation of the electric heating device.

[0078] The embodiment first detects the condensation condition: the detection module detects the parameters of the corresponding position, obtains the angle of the electric heating device, and records the parameters corresponding to the angle of the electric heating device.

[0079] The control module performs condensation condition detection after the condensation condition detection is completed, and then performs condensation condition judgment: whether the electric heating device condensation condition is met is judged according to the parameters detected by the detection module, wherein the electric heating device condensation condition is mainly embodied by whether the temperature field distribution around the electric heating device is uniform, when the temperature field distribution is uniform, that is, when it is judged according to the parameters detected by the detection module that the electric heating device condensation condition is not met, the electric heating device is not moved; when the temperature field distribution is not uniform, that is, when it is judged according to the parameters detected by the detection module that the electric heating device condensation condition is met, the electric heating driving device is controlled to drive the electric heating device to rotate by a set angle and maintain at the angle for a set time, and then enter the condensation condition detection, until a condensation prevention angle is found to make the temperature field distribution around the electric heating device uniform; when all the set angles of the electric heating device in its rotation range meet the electric heating device condensation condition, the angles of all the electric heating devices subjected to the condensation condition detection will produce condensation, at this time, the parameters detected by the detection module closest to the condensation condition and the angles of the electric heating devices corresponding to the parameters are determined, the angle of the electric heating device with the smallest condensation is selected, the generation of the electric heating device condensation can be minimized, and the electric heating device is controlled to rotate to the angle of the electric heating device corresponding to the parameters detected by the detection module closest to the condensation condition. The condensation prevention 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 generation of the electric heating device condensation.

[0080] The control method of the air conditioner is:

[0081] The air conditioner is in refrigeration or dehumidification operation;

[0082] The condensation condition detection step: the parameters detected by the detection module are obtained, and the angle of the electric heating device is obtained;

[0083] The condensation condition judgment step: when the electric heating device condensation condition is met, the electric heating driving device drives the electric heating device to rotate by a set angle and maintain at the angle for a set time, and then enters the condensation condition detection step; when the electric heating device condensation condition is not met, the electric heating device is not moved; when all the set angles of the electric heating device in its rotation range meet the electric heating device condensation condition, the parameters detected by the detection module closest to the condensation condition and the angles of the electric heating devices corresponding to the parameters are determined, and the electric heating device is rotated to the angle of the electric heating device corresponding to the parameters detected by the detection module closest to the condensation condition.

[0084] In the air conditioner refrigeration or dehumidification operation, the detection module detects the parameters of multiple positions, obtains the angle of the electric heating device, and records the parameters corresponding to the angle of the electric heating device; whether the angle of the electric heating device meets the electric heating device condensation condition is judged according to the parameters detected by the detection module, when the parameters detected by the detection module meet the electric heating device condensation condition, there is a condensation risk, the angle of the electric heating device needs to be adjusted, the electric heating driving device drives the electric heating device to rotate a set angle and maintain at the angle for a set time, and then the step of detecting the parameters by the detection module is continued, when the parameters detected by the detection module do not meet the electric heating device condensation condition, there is no condensation risk, and the electric heating device is stationary; when all set angles of the electric heating device in its rotation range meet the electric heating device condensation condition, the parameters detected by the detection module closest to the condensation condition and the corresponding angle of the electric heating device are determined, and the electric heating device is controlled to rotate to the angle of the electric heating device corresponding to the parameters detected by the detection module closest to the condensation condition, so that the generation of the electric heating device condensation can be minimized.

[0085] As shown in Figure 4 , the control method of the air conditioner of the embodiment is:

[0086] S1, the air conditioner is refrigerated or dehumidified.

[0087] S2, the parameters detected by the detection module are obtained, and the angle of the electric heating device is obtained.

[0088] S3, whether the electric heating device condensation condition is met is judged according to the parameters detected by the detection module, when the electric heating device condensation condition is met, step S4 is entered, otherwise, step S5 is entered.

[0089] S4, the electric heating device traverses all set angles in its rotation range, if not, step S6 is entered, otherwise, step S7 is entered.

[0090] S5, the electric heating device is stationary, and the air conditioner continues to operate according to the set state.

[0091] In step S5, when the angle of the electric heating device is explained, the temperature field distribution around the electric heating device is uniform, which will not cause the electric heating device to condense, so the electric heating device is stationary, and the air conditioner continues to operate according to the set state.

[0092] In some embodiments, in order to avoid the running time of the air conditioner changing the temperature field around the electric heating device, thereby changing the condensation state of the electric heating device, in step S5, after the air conditioner continues to operate according to the set state for a period of time, it can also re-enter step S2 for a condensation judgment, or in step S5, it enters step S2 for condensation judgment at regular intervals.

[0093] S6, the electric heating driving device drives the electric heating device to rotate a set angle and maintain the angle for a set time, and the process goes to step S2.

[0094] S7, determining the parameter detected by the detection module closest to the condensation condition and the angle of the electric heating device corresponding to the parameter.

[0095] S8, controlling the electric heating device to rotate to the angle of the electric heating device corresponding to the parameter detected by the detection module closest to the condensation condition.

[0096] Embodiment two

[0097] In this embodiment, the detection module 4 includes temperature sensors located around the electric heating device.

[0098] Specifically, the detection module 4 includes at least two temperature sensors arranged around the electric heating device, and the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes. The temperature sensors are a certain distance away from the electric heating device, and are used to measure the air temperature around the electric heating device.

[0099] In some embodiments, the detection module 4 includes two temperature sensors located in any two of the upper space, the lower space, the left space and the right space of the electric heating device 2.

[0100] In some embodiments, the detection module 4 includes three temperature sensors located in any three of the upper space, the lower space, the left space and the right space of the electric heating device 2.

[0101] In some embodiments, the detection module 4 includes four temperature sensors located in the upper space, the lower space, the left space and the right space of the electric heating device 2.

[0102] Of course, the more temperature sensors, the better the anti-condensation effect.

[0103] In some embodiments, the air conditioner includes a detection module mounting bracket, the detection module 4 is mounted on the detection module mounting bracket, and the mounting bracket can be fixed in the air conditioner or fixed on the electric heating device and rotated synchronously with the electric heating device.

[0104] The control module is configured to detect the condensation condition when the air conditioner is operating in refrigeration or dehumidification mode, and is configured to obtain the temperatures detected by the temperature sensors at the at least two positions, and is configured to obtain the angle of the electric heating device.

[0105] For entering the condensation condition detection after the condensation condition detection is completed: for determining the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor; for controlling the electric heating driving device to drive the electric heating device to rotate a set angle and maintain at the angle for a set time when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, and then entering the condensation condition detection again; for controlling the electric heating device to be stationary when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature; for determining the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin and the angle of the electric heating device corresponding to the minimum value when all the set angles of the electric heating device in its rotation range meet the condition that the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, and controlling the electric heating device to rotate to the angle of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin.

[0106] The present embodiment first performs the condensation condition detection: the temperature sensor detects the temperature of the corresponding position, obtains the angle of the electric heating device, and records the temperature detected by the temperature sensor and the angle of the electric heating device after corresponding.

[0107] After the condensation condition detection is completed, the control module performs condensation condition judgment: whether the electric heating device condensation condition is met is judged according to the temperature detected by the temperature sensor, wherein the electric heating device condensation condition is mainly embodied by whether the temperature field distribution around the electric heating device is uniform, when the temperature field distribution is uniform, that is, when the electric heating device condensation condition is not met according to the temperature detected by the temperature sensor, the electric heating device is controlled to be stationary; when the temperature field distribution is not uniform, that is, when the electric heating device condensation condition is met according to the temperature detected by the temperature sensor, the electric heating driving device is controlled to drive the electric heating device to rotate by a set angle and maintain at the angle for a set time, and then enter the condensation condition detection, until a condensation prevention position is found to make the temperature field distribution around the electric heating device uniform. Specifically, the maximum temperature Tmax and the minimum temperature Tmin are determined 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, it indicates that the temperature field distribution is not uniform, the electric heating driving device is controlled to drive the electric heating device to rotate by a set angle and maintain at the angle for a set time, and then enter the condensation condition detection; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, it indicates that the temperature field distribution is uniform, the electric heating device is controlled to be stationary. When all the set angles of the electric heating device in its rotation range meet the condition that the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, then the angles of all the electric heating devices that have undergone condensation condition detection will produce condensation, at this time, the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin and the angle of the electric heating device corresponding to the minimum value are determined, the angle of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin is selected, which can minimize the generation of condensation of the electric heating device, and the electric heating device is controlled to rotate to the angle of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin. The condensation prevention position found in this embodiment can ensure that the temperature field distribution around the electric heating device is uniform, and can avoid or reduce the generation of condensation of the electric heating device.

[0108] The control method of the air conditioner is:

[0109] The air conditioner is operated in refrigeration or dehumidification mode;

[0110] The condensation condition detection step: the temperature detected by the temperature sensor is obtained, and the angle of the electric heating device is obtained;

[0111] Condensation condition judgment steps: Determine the maximum temperature Tmax and minimum temperature Tmin based on the temperature detected by the temperature sensor; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, the electric heating drive device drives the electric heating device to rotate a set angle and maintains that angle for a set time, then proceeds to the condensation condition detection step; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, the electric heating device remains stationary; when the electric heating device traverses all set angles within its rotation range and the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, determine the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin and the corresponding angle of the electric heating device, and control the electric heating device to rotate to the angle of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin.

[0112] During air conditioner cooling or dehumidifying operation, temperature sensors at multiple locations detect the temperature at multiple points. Based on the detected temperatures, the maximum temperature Tmax and minimum temperature Tmin are determined. When the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, there is a risk of condensation, requiring adjustment of the angle of the electric heating device 2. The electric heating drive device 5 drives the electric heating device 2 to rotate at the set angle and maintains it at that angle for a set time, adjusting the airflow angle of the electric heating device. Then, the temperature sensor detection process continues. When the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, the temperature around the electric heating device tends to be uniform, eliminating the risk of condensation. The electric heating device remains stationary, and the air conditioner continues to operate according to the set state. If it works, then do so. Otherwise, continue rotating the electric heating device as described above, adjusting the angle of the electric heating device towards the wind and detecting the temperature, until the electric heating device rotates to an angle where the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, and there is no risk of condensation. When the electric heating device has traversed all set angles within its rotation range and the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, determine the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin and the corresponding angle of the electric heating device. Control the electric heating device to rotate to the angle of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin, so as to control the electric heating device to the position where condensation is least generated, so as to minimize the generation of condensation.

[0113] The set temperature is any value of 1 ± 0.3℃, preferably 1℃.

[0114] like Figure 5 As shown, the control method of the air conditioner in this embodiment is as follows:

[0115] S1, the air conditioner is in cooling or dehumidification mode.

[0116] S2, obtaining the temperature detected by the temperature sensor and the angle of the electric heating device.

[0117] S3, determining the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor, and calculating the difference between the maximum temperature Tmax and the minimum temperature Tmin.

[0118] S4, if the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, entering step S5, otherwise, entering step S6.

[0119] S5, the electric heating device traverses all the set angles in its rotation range, if not, entering step S7, otherwise, entering step S8.

[0120] S6, the electric heating device is stationary.

[0121] In step S6, when the angle of the electric heating device is determined, the temperature field distribution around the electric heating device is uniform, which will not cause condensation of the electric heating device, therefore, the electric heating device is stationary, and the air conditioner continues to operate according to the set state.

[0122] In some embodiments, in order to avoid the running time of the air conditioner changing the temperature field around the electric heating device, thereby changing the condensation state of the electric heating device, in step S6, after the air conditioner continues to operate according to the set state for a period of time, it can also re-enter step S2 to make a condensation determination, or in step S6, it can enter step S2 to make a condensation determination at a regular time.

[0123] S7, the electric heating driving device drives the electric heating device to rotate a set angle and maintain at the angle for a set time, and enters step S2.

[0124] S8, determining the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin and the angle of the electric heating device corresponding thereto.

[0125] S9, controlling the electric heating device to rotate to the angle of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin.

[0126] 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 during the actual operation of the air conditioner. The temperature sensor arranged around the electric heating device is used to monitor whether the temperature field around the electric heating device is uniform. When the temperature field reaches the set deviation range, the electric heating device is fixed at a certain angle. When the temperature field exceeds the set deviation range, the electric heating device is rotated until the angle of the electric heating device makes the temperature field around the electric heating device uniform. If all the angles cannot avoid the condensation of the electric heating device, the angle of the electric heating device with the least condensation is determined to minimize the generation of condensation. The embodiment can adjust the angle of the electric heating device according to the operating state of the air conditioner, so as to make the temperature field around the electric heating device uniform, and avoid or reduce the condensation water generated by the alternating mixing of cold and hot air around the electric heating device.

[0127] Embodiment three

[0128] In the embodiment, the detection module 4 includes a temperature sensor and a humidity sensor arranged around the electric heating device.

[0129] Specifically, the detection module 4 includes a humidity sensor and at least two temperature sensors arranged around the electric heating device, and the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes. The 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. The humidity sensor is a certain distance away from the electric heating device and is used to measure the humidity around the electric heating device. Only one humidity sensor is needed.

[0130] In some embodiments, the detection module 4 includes two temperature sensors arranged in any two of the upper space, lower space, left space and right space of the electric heating device 2.

[0131] In some embodiments, the detection module 4 includes three temperature sensors arranged in any three of the upper space, lower space, left space and right space of the electric heating device 2.

[0132] In some embodiments, the detection module 4 includes four temperature sensors arranged in the upper space, lower space, left space and right space of the electric heating device 2.

[0133] Of course, the more temperature sensors, the better the anti-condensation effect.

[0134] In some embodiments, the air conditioner includes a detection module mounting bracket, and the temperature sensor is mounted on the detection module mounting bracket. The mounting bracket can be fixed in the air conditioner or fixed on the electric heating device and rotated synchronously with the electric heating device.

[0135] The installation position of the humidity sensor is not limited. In order to simplify the structure, the humidity sensor can also be mounted on the mounting bracket.

[0136] a control module for detecting the condensation condition when the air conditioner is in cooling or dehumidifying operation: for obtaining the temperature detected by the temperature sensor at at least two positions; for obtaining the humidity S detected by the humidity sensor; for obtaining the angle of the electric heating device;

[0137] for 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; for controlling the electric heating driving device to drive the electric heating device to rotate a set angle and maintain at the angle for a set time when the dew point temperature K is higher than the minimum temperature Tmin, and then returning to the condensation condition detection; for controlling the electric heating device to be stationary when the dew point temperature K is lower than the minimum temperature Tmin; for determining the minimum value of the difference between the dew point temperature K and the minimum temperature Tmin and the angle of the electric heating device corresponding to the minimum value when all the set angles of the electric heating device in its rotation range meet the condition that the dew point temperature K is higher than the minimum temperature Tmin, and controlling the electric heating device to rotate to the angle of the electric heating device corresponding to the minimum value of the difference between the dew point temperature K and the minimum temperature Tmin.

[0138] The embodiment first detects the condensation condition: the temperature sensor detects the temperature at the corresponding position, the humidity sensor detects the humidity S, and the angle of the electric heating device is obtained.

[0139] The control module performs condensation condition detection after the condensation condition detection is completed, and then performs condensation condition judgment: whether the electric heating device condensation condition is met is judged according to the temperature detected by the temperature sensor and the humidity detected by the humidity sensor, wherein the electric heating device condensation condition is mainly embodied by whether the temperature field distribution around the electric heating device is uniform, and when the temperature field distribution is uniform, that is, when it is judged according to the temperature detected by the temperature sensor and the humidity detected by the humidity sensor that the electric heating device condensation condition is not met, the electric heating device is controlled to be stationary; when the temperature field distribution is not uniform, that is, when it is judged according to the temperature detected by the temperature sensor and the humidity detected by the humidity sensor that the electric heating device condensation condition is met, the electric heating driving device is controlled to drive the electric heating device to rotate by a set angle and maintain at the angle for a set time, and then enter the condensation condition detection, until a condensation prevention position is found to make the temperature field distribution around the electric heating device uniform. Specifically, the maximum temperature Tmax and the minimum temperature Tmin are determined according to the temperature detected by the temperature sensor; the dew point temperature K is determined according to the maximum temperature Tmax and the humidity S; when the dew point temperature K is higher than the minimum temperature Tmin, it indicates that the temperature field distribution is not uniform, the electric heating driving device is controlled to drive the electric heating device to rotate by a set angle and maintain at the angle for a set time, and then enter the condensation condition detection; when the dew point temperature K is lower than the minimum temperature Tmin, it indicates that the temperature field distribution is uniform, and the electric heating device is controlled to be stationary. When all the set angles of the electric heating device in its rotation range meet the condition that the dew point temperature K is higher than the minimum temperature Tmin, then the angles of all the electric heating devices that have undergone condensation condition detection will produce condensation, at this time, the minimum value of the difference between the dew point temperature K and the minimum temperature Tmin and the angle of the electric heating device corresponding to the minimum value are determined, the angle of the electric heating device corresponding to the minimum value of the difference between the dew point temperature K and the minimum temperature Tmin is selected, which can minimize the generation of condensation of the electric heating device, and the electric heating device is controlled to rotate to the angle of the electric heating device corresponding to the minimum value of the difference between the dew point temperature K and the minimum temperature Tmin. The condensation prevention position found in this embodiment can ensure that the temperature field distribution around the electric heating device is uniform, and can avoid or reduce the generation of condensation of the electric heating device.

[0140] The control method of the air conditioner is:

[0141] The air conditioner is operated in refrigeration or dehumidification mode;

[0142] The condensation condition detection step: obtaining the temperature detected by the temperature sensor; obtaining the humidity S detected by the humidity sensor, and obtaining the angle of the electric heating device;

[0143] The condensation condition judgment step: according to the temperature detected by the temperature sensor to determine the maximum temperature Tmax and the minimum temperature Tmin, according to the maximum temperature Tmax and the humidity S to determine the dew point temperature K; 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 and maintain at the angle for a set time, and then enter the condensation condition detection step; when the dew point temperature K is lower than the minimum temperature Tmin, the electric heating device is not moved; when all the set angles of the electric heating device in its rotation range meet the condition that the dew point temperature K is higher than the minimum temperature Tmin, the minimum value of the difference between the dew point temperature K and the minimum temperature Tmin and the angle of the electric heating device corresponding to the minimum value are determined, and the electric heating device is controlled to rotate to the angle of the electric heating device corresponding to the minimum value.

[0144] When the air conditioner is running in refrigeration or dehumidification, the humidity sensor detects the humidity, the temperature sensors at multiple positions detect the temperatures at multiple positions, the maximum temperature Tmax and the minimum temperature Tmin are determined according to the temperatures detected by the temperature sensors, and the dew point temperature K is determined according to the maximum temperature Tmax and the humidity S; when the dew point temperature K is higher than the minimum temperature Tmin, there is a risk of condensation, the angle of the electric heating device 2 needs to be adjusted, the electric heating driving device 5 drives the electric heating device 2 to rotate a set angle and maintain at the angle for a set time, the windward angle of the electric heating device is adjusted, and then the step of detecting the temperature by the temperature sensor is continued; when the dew point temperature K is lower than the minimum temperature Tmin, the temperature around the electric heating device tends to be uniform, there is no risk of condensation, the electric heating device is not moved, and the air conditioner can continue to run according to the set state, otherwise, the electric heating device is continued to be rotated in the above-mentioned manner, the windward angle of the electric heating device is adjusted and the temperature and humidity are detected, until the electric heating device is rotated to an angle at which the dew point temperature K is lower than the minimum temperature Tmin, and there is no risk of condensation; when all the set angles of the electric heating device in its rotation range meet the condition that the dew point temperature K is higher than the minimum temperature Tmin, the minimum value of the difference between the dew point temperature K and the minimum temperature Tmin and the angle of the electric heating device corresponding to the minimum value are determined, and the electric heating device is controlled to rotate to the angle of the electric heating device corresponding to the minimum value, so as to control the electric heating device to be in a position where condensation is least generated, so as to reduce the generation of condensation as much as possible.

[0145] As shown in Figure 6 , the control method of the air conditioner of the embodiment is:

[0146] S1, the air conditioner runs in refrigeration or dehumidification.

[0147] S2, the temperatures detected by the temperature sensors at at least two positions are obtained; the humidity S detected by the humidity sensor is obtained; and the angle of the electric heating device is obtained.

[0148] S3, 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.

[0149] S4, when the dew point temperature K is higher than the minimum temperature Tmin, entering step S5, otherwise, entering step S6.

[0150] S5, the electric heating device traverses all the set angles in its rotation range, if not, entering step S7, otherwise, entering step S8.

[0151] S6, the electric heating device is stationary.

[0152] In step S6, when the angle of the electric heating device is explained, the temperature field distribution around the electric heating device is uniform, which will not cause the electric heating device to condense dew, therefore, the electric heating device is stationary, and the air conditioner continues to run according to the set state.

[0153] In some embodiments, in order to avoid the running time of the air conditioner changing the temperature field around the electric heating device, thereby changing the condensation state of the electric heating device, in step S6, the air conditioner continues to run according to the set state for a period of time, and then enters step S2 again to make a condensation determination, or in step S6, enters step S2 to make a condensation determination at a fixed time.

[0154] S7, the electric heating driving device drives the electric heating device to rotate a set angle and maintain at the angle for a set time, and enters step S2.

[0155] S8, determining the minimum value of the difference between the dew point temperature K and the minimum temperature Tmin and the angle of the electric heating device corresponding thereto.

[0156] S9, controlling the electric heating device to rotate to the angle of the electric heating device corresponding to the minimum value of the difference between the dew point temperature K and the minimum temperature Tmin.

[0157] The embodiment increases the electric heating device driving device to the electric heating 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 monitor whether the temperature field around the electric heating device is uniform. When the temperature field reaches the set deviation range, the electric heating device is stationary at the fixed angle, when the temperature field exceeds the set deviation range, the electric heating device is rotated until the angle of the electric heating device makes the temperature field around it uniform; if all angles cannot avoid the electric heating device from condensing dew, the angle of the electric heating device with the least condensation is determined to minimize the generation of condensation. The embodiment can adjust the angle of the electric heating device according to the running state of the air conditioner to make the temperature field around the electric heating device uniform, thereby avoiding the alternating mixing of cold and hot air around the electric heating device to produce condensation water and drop.

[0158] Embodiment Four

[0159] On the basis of Embodiments One to Three, the control module of the present embodiment is used to determine whether the operating parameters of the air conditioner change after the electric heating device is stationary, and is used to control the air conditioner to operate according to the changed operating parameters for a set time before entering the condensation condition detection when the operating parameters of the air conditioner change.

[0160] The control method is as follows: after the electric heating device is stationary, when the operating parameters of the air conditioner change, the operating parameters are changed and the air conditioner is operated for a set time before entering the condensation condition detection step.

[0161] 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.

[0162] Because the operating parameters of the air conditioner change, the temperature and / or humidity around the electric heating device change after the operating parameters are changed. In order to avoid condensation, the temperature around the electric heating device is determined again after the condensation condition detection step, and it is determined whether the electric heating device rotates according to the temperature around the electric heating device. In some embodiments, the electric heating device can be rotated by a set angle on the basis of the current angle of the electric heating device, and in other embodiments, the electric heating device can be restored to the initial angle. After the condensation condition detection step, the temperature around the electric heating device is determined again, and it is determined whether the electric heating device rotates according to the temperature around the electric heating device.

[0163] As shown in FIG. 3, on the basis of Embodiment Three, the control method of the air conditioner of the present embodiment is as follows: Figure 7

[0164] S1, the air conditioner operates in the refrigeration or dehumidification mode.

[0165] S2, the temperature detected by the temperature sensor at at least two positions is obtained; the humidity detected by the humidity sensor is obtained; and the angle of the electric heating device is obtained.

[0166] S3, the maximum temperature Tmax and the minimum temperature Tmin are determined according to the temperature detected by the temperature sensor, and the dew point temperature K is determined according to the maximum temperature Tmax and the humidity S.

[0167] S4, when the dew point temperature K is higher than the minimum temperature Tmin, step S5 is entered, otherwise, step S6 is entered.

[0168] S5, the electric heating device traverses all the set angles in the rotation range of the electric heating device, if not, step S7 is entered, otherwise, step S8 is entered.

[0169] ​S6, the electric heating device is stationary, and the air conditioner continues to operate according to the set state. Step S10 is entered.

[0170] In step S6, when the angle of the electric heating device is explained, the temperature field distribution around the electric heating device is uniform, and the electric heating device will not cause condensation. Therefore, the electric heating device is stationary, and the air conditioner continues to operate according to the set state.

[0171] In some embodiments, in order to avoid the running time of the air conditioner changing the temperature field around the electric heating device, thereby changing the condensation state of the electric heating device, in step S6, the air conditioner continues to operate according to the set state for a period of time, and then enters step S2 again to perform a condensation determination, or in step S6, the timing enters step S2 to perform a condensation determination.

[0172] S7, the electric heating driving device drives the electric heating device to rotate a set angle and maintain the angle for a set time, and step S2 is entered.

[0173] S8, determine the minimum value of the difference between the dew point temperature K and the minimum temperature Tmin and the angle of the electric heating device corresponding to the minimum value.

[0174] S9, control the electric heating device to rotate to the angle of the electric heating device corresponding to the minimum value of the difference between the dew point temperature K and the minimum temperature Tmin.

[0175] S10, the running parameters of the air conditioner change, if yes, step S11 is entered, otherwise, step S6 is entered.

[0176] S11, operate according to the changed running parameters for a set time, and step S2 is entered.

[0177] In some embodiments, in step S11, in the first cycle of the condensation condition detection step, in step S7, the electric heating driving device drives the electric heating device to rotate a set angle, which can continue to rotate a set angle from the current angle, or drive the electric heating device to return to the initial angle, and the subsequent cycle starts from the initial angle.

[0178] 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 reaches the set deviation range, the electric heating device is fixed at the angle. When the temperature field exceeds the set deviation range, the electric heating device is rotated until the angle of the electric heating device makes the temperature field around the electric heating device uniform. If all the angles cannot avoid the electric heating device from producing condensation, the angle of the electric heating device that produces the least condensation is determined to reduce the generation of condensation as much as possible. The embodiment can also adjust the angle of the electric heating device according to the running state of the air conditioner to make the temperature field around the electric heating device uniform, so as to avoid the condensation water produced by the alternating mixing of cold and hot air around the electric heating device and the dripping of the condensation water. When the temperature field around the electric heating device is uniform and the electric heating device is fixed, the air conditioner continues to run according to the set state. Further, it is judged whether the running parameters of the air conditioner change. When the running 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 the uniform temperature field state.

[0179] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content into 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 in that, The air conditioner includes: Electric heating device; An electric heating drive device is used to drive the electric heating device to rotate; The detection module is located around the electric heating device; The control module is used to detect condensation conditions when the air conditioner is cooling or dehumidifying: it is used to obtain the parameters detected by the detection module and to obtain the angle of the electric heating device. This is used to enter the condensation condition judgment stage after the condensation condition detection is completed: Based on the parameters detected by the detection module, if the condensation condition of the electric heating device is met, control the electric heating drive device to rotate the electric heating device by a set angle and maintain it at that angle for a set time before resuming condensation condition detection; based on the parameters detected by the detection module, if the condensation condition of the electric heating device is not met, control the electric heating device to remain stationary; when the electric heating device meets the condensation condition at all set angles within its rotation range, determine the parameter detected by the detection module that is closest to the condensation condition and its corresponding angle of the electric heating device, and control the electric heating device to rotate to the angle of the electric heating device corresponding to the parameter detected by the detection module that is closest to the condensation condition.

2. The air conditioner according to claim 1, characterized in that, The detection module includes at least two temperature sensors arranged around the electric heating device, and the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes. The control module is used to detect condensation conditions when the air conditioner is cooling or dehumidifying: it is used to obtain the temperature detected by the temperature sensor and to obtain the angle of the electric heating device. Used to enter the condensation condition judgment after the condensation condition detection is completed: used to determine the maximum temperature Tmax and the minimum temperature Tmin based on the temperature detected by the temperature sensor; This is used to control the electric heating drive device to rotate the electric heating device by a set angle and maintain that angle for a set time when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, before entering the condensation condition detection; it is used to control the electric heating device to remain stationary when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature; it is used to determine the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin and the corresponding angle of the electric heating device when the electric heating device traverses all set angles within its rotation range and the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, and control the electric heating device to rotate to the angle of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin.

3. The air conditioner according to claim 1, characterized in that, The detection module includes a humidity sensor and at least two temperature sensors arranged around the electric heating device, wherein the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes. The control module is used to detect condensation conditions when the air conditioner is cooling or dehumidifying: it is used to acquire the temperature detected by the temperature sensor; it is used to acquire the humidity S detected by the humidity sensor; and it is used to acquire the angle of the electric heating device. This system is used to determine condensation conditions after condensation condition detection is completed: It determines the maximum temperature Tmax and minimum temperature Tmin based on the temperature detected by the temperature sensor, and determines the dew point temperature K based on the maximum temperature Tmax and humidity S; when the dew point temperature K is higher than the minimum temperature Tmin, it controls the electric heating drive to rotate the electric heating device by a set angle and maintain it at that angle for a set time before resuming condensation condition detection; when the dew point temperature K is lower than the minimum temperature Tmin, it controls the electric heating device to remain stationary; when the electric heating device traverses all set angles within its rotation range and the dew point temperature K is higher than the minimum temperature Tmin, it determines the minimum difference between the dew point temperature K and the minimum temperature Tmin and the corresponding angle of the electric heating device, and controls the electric heating device to rotate to the angle corresponding to the minimum difference between the dew point temperature K and the minimum temperature Tmin.

4. The air conditioner according to any one of claims 1-3, characterized in that, The control module is used to determine whether the operating parameters of the air conditioner have changed after the electric heating device stops moving, and to run the air conditioner according to the changed operating parameters for a set time before performing condensation condition detection when the operating parameters of the air conditioner change.

5. The air conditioner according to any one of claims 1-3, characterized in that, The control module is used to periodically detect condensation conditions after the electric heating device has stopped moving.

6. A control method for an air conditioner, characterized in that, The air conditioner includes an electric heating device, an electric heating drive device, and a detection module. The electric heating drive device is used to drive the electric heating device to rotate. The detection module is located around the electric heating device. The control method is as follows: The air conditioner is operating in either cooling or dehumidification mode. Condensation condition detection steps: Obtain the parameters detected by the detection module and obtain the angle of the electric heating device; Condensation condition judgment steps: Based on the parameters detected by the detection module, if the condensation condition of the electric heating device is met, the electric heating drive device drives the electric heating device to rotate a set angle and maintain that angle for a set time, then proceeds to the condensation condition detection step; if the parameters detected by the detection module do not meet the condensation condition of the electric heating device, the electric heating device remains stationary; when the electric heating device satisfies the condensation condition of the electric heating device by traversing all set angles within its rotation range, the parameter detected by the detection module that is closest to the condensation condition and its corresponding angle of the electric heating device are determined, and the electric heating device rotates to the angle of the electric heating device corresponding to the parameter detected by the detection module that is closest to the condensation condition.

7. The control method for an air conditioner according to claim 6, characterized in that, The detection module includes at least two temperature sensors arranged around the electric heating device, wherein the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes; the control method is as follows: When the air conditioner is cooling or dehumidifying; Condensation condition detection steps: Obtain the temperature detected by the temperature sensor, and obtain the angle of the electric heating device; Condensation condition judgment steps: The maximum temperature Tmax and minimum temperature Tmin are determined based on the temperature detected by the temperature sensor; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, the electric heating drive device drives the electric heating device to rotate a set angle and maintain that angle for a set time, then proceeds to the condensation condition detection step; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, the electric heating device remains stationary; when the electric heating device traverses all set angles within its rotation range and the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature, the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin and its corresponding angle of the electric heating device are determined, and the electric heating device is controlled to rotate to the angle of the electric heating device corresponding to the minimum value of the difference between the maximum temperature Tmax and the minimum temperature Tmin.

8. The control method for an air conditioner according to claim 6, characterized in that, The detection module includes a humidity sensor and at least two temperature sensors disposed around the electric heating device, wherein the planes formed by the at least two temperature sensors and the rotation axis of the electric heating device are different planes; the control method is as follows: When the air conditioner is cooling or dehumidifying; Condensation condition detection steps: Obtain the temperature detected by the temperature sensor; obtain the humidity S detected by the humidity sensor; obtain the angle of the electric heating device; Condensation condition judgment steps: The maximum temperature Tmax and minimum temperature Tmin are determined based on the temperature detected by the temperature sensor. The dew point temperature K is determined based on the maximum temperature Tmax and the humidity S. When the dew point temperature K is higher than the minimum temperature Tmin, the electric heating drive device rotates the electric heating device by a set angle and maintains that angle for a set time before proceeding to the condensation condition detection step. When the dew point temperature K is lower than the minimum temperature Tmin, the electric heating device remains stationary. When the electric heating device traverses all set angles within its rotation range and the dew point temperature K is higher than the minimum temperature Tmin, the minimum difference between the dew point temperature K and the minimum temperature Tmin is determined, along with the corresponding angle of the electric heating device. The electric heating device is then controlled to rotate to the angle corresponding to the minimum difference between the dew point temperature K and the minimum temperature Tmin.

9. The control method for an air conditioner according to any one of claims 6-8, characterized in that, After the electric heating device stops moving, it is determined whether the operating parameters of the air conditioner have changed. If the operating parameters of the air conditioner have changed, the system runs for a set time according to the changed operating parameters before proceeding to the condensation condition detection step.

10. The control method for an air conditioner according to any one of claims 6-8, characterized in that, After the electric heating device stops moving, the condensation condition detection step is initiated at regular intervals.

Images