WO2023185868A1 - Air conditioner and control method therefor - Google Patents

Abstract

Provided in the present invention are an air conditioner and a control method therefor. The air conditioner comprises an electric heating apparatus, an electric heating drive apparatus, a storage module and a control module, wherein the electric heating drive apparatus is used for driving the electric heating apparatus to rotate; the storage module is used for storing correspondences between operating states of the air conditioner and anti-condensation electric heating angles; and the control module is used for acquiring the current operating state of the air conditioner when the air conditioner operates in a cooling or dehumidification mode, for obtaining a corresponding anti-condensation electric heating angle according to the current operating state of the air conditioner, and for controlling the electric heating drive apparatus to drive the electric heating apparatus to rotate to the anti-condensation electric heating angle. In the present invention, according to an operating state of an air conditioner, an electric heating apparatus is adjusted to rotate to an anti-condensation electric heating angle, wherein the anti-condensation electric heating angle is a position which is determined in advance by experiments and at which the electric heating apparatus does not generate or rarely generates condensation in the operating state of the air conditioner. The present invention can avoid or reduce the problem of condensation appearing in an electric heating apparatus during the operation of an air conditioner in a cooling or dehumidification mode.

Description

Air conditioner and control method thereof Technical field

The present invention relates to the technical field of air conditioning devices, and in particular to an air conditioner and a control method thereof.

Background technique

Existing air-conditioning indoor units generally have an auxiliary heating function, that is, an electric heating device is installed in the air-conditioning indoor unit to assist heating and enhance the heating effect of the air conditioner.

Generally, electric heating devices are installed near the evaporator of the indoor unit. For example, the electric heating device of the indoor unit of an on-hook air conditioner is generally installed between the evaporator and the cross-flow fan. When the air conditioner is running for refrigeration, the indoor air passes through the air inlet of the air conditioner and becomes cold air after being exchanged by the evaporator. Part of the cold air will pass through the electric heating device and be blown out from the air outlet by the cross-flow fan. Therefore, when the air conditioner is cooling, the temperature of the electric heating device will drop rapidly. At the same time, due to the refrigeration of the air conditioner, a lot of condensation water will condense on the evaporator fins. When the air conditioner stops cooling, in actual tests, the humidity in the air inside the air duct is very high. Therefore, the electric heating device will generate condensation 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 condensation water at the electric heating device. When the wind speed of the air conditioner is high, the condensation water on the electric heating device may be blown out directly and drip into the room, affecting the indoor environment. User experience of using air conditioner. At the same time, there is condensation water on the electric heating device for a long time, which poses certain safety risks and may cause oxidation and corrosion of the metal parts of the electric heating device, shortening its service life. It is also easy to cause the electric heating device to be in a moist state for a long time, causing mildew, causing the wind blown by the air conditioner to have a musty smell.

In addition, according to actual experimental verification, when the air conditioner is operating in cooling mode, due to the unbalanced temperature field around the electric heating device and high internal humidity, the electric heating device will continue to produce condensation water during the operation of the air conditioner, which will accumulate for a period of time. Then it will drip directly.

In response to the above technical problems, existing solutions are:

1. The air conditioner enters the air supply mode within a short time after finishing cooling, which can increase the temperature of the electric heating device and reduce the possibility of condensation on the electric heating device. However, the temperature increase of electric heating is limited, and the problem of condensation on the electric heating device cannot be completely avoided.

2. When the air conditioner is running for refrigeration, control the air conditioner to shut down through remote control/voice control/APP, etc. The internal and external fans and compressors of the air conditioner are turned off according to the program control. After the air guide plate of the indoor unit is closed, the internal fan will rotate at the set low speed. operation, and at the same time, the electric heating device is turned on for a short time to increase the electric heating temperature and evaporate the condensed water on the electric heating device. After the cooling is completed, the electric heating is turned on to evaporate the condensed water, but this cannot avoid the problem of excessive accumulation of condensed water dripping when the air conditioner is operated for a long time.

technical problem

The object of the present invention is to provide an air conditioner and a control method thereof, which solve the technical problem of the existing air conditioner causing different temperatures around the electric heating device during cooling or dehumidification operation, thereby generating condensation water on the electric heating device.

Technical solutions

An air conditioner, the air conditioner includes:

electric heating device;

An electric heating drive device is used to drive the electric heating device to rotate;

A storage module used to store the corresponding relationship between the operating status of the air conditioner and the anti-condensation electric heating angle;

A control module used to obtain the current operating status of the air conditioner when the air conditioner is running for cooling or dehumidification, and to obtain the corresponding relationship between the operating status of the air conditioner stored in the storage module and the anti-condensation electric heating angle, It is used to obtain the anti-condensation electric heating angle corresponding to the current operating state according to the current operating state of the air conditioner, and to control the electric heating driving device to drive the electric heating device to rotate to the anti-condensation electric heating angle.

A control method for an air conditioner. The air conditioner includes an electric heating device and an electric heating driving device. The electric heating driving device is used to drive the electric heating device to rotate. The control method is:

When the air conditioner is running for cooling or dehumidification, obtain the current operating status of the air conditioner;

Obtain the corresponding relationship between the operating status of the air conditioner and the anti-condensation electric heating angle;

Obtain the anti-condensation electric heating angle corresponding to the current operating state according to the current operating state of the air conditioner;

The electric heating driving device drives the electric heating device to rotate to the anti-condensation electric heating angle.

beneficial effects

The air conditioner of the present invention includes an electric heating device, an electric heating driving device, a storage module and a control module; the electric heating driving device is used to drive the electric heating device to rotate; the storage module is used to store the correspondence between the operating status of the air conditioner and the anti-condensation electric heating angle. relationship; the control module is used to obtain the current operating status of the air conditioner when the air conditioner is cooling or dehumidifying, and is used to obtain the corresponding relationship between the operating status of the air conditioner stored in the storage module and the anti-condensation electric heating angle, and is used to obtain the corresponding relationship between the air conditioner operating status and the anti-condensation electric heating angle according to the air conditioner. The current operating state is obtained to obtain the anti-condensation electric heating angle corresponding to the current operating state, which is used to control the electric heating drive device to drive the electric heating device to rotate to the anti-condensation electric heating angle. The air conditioner of the present invention adjusts the electric heating device to rotate to an anti-condensation electric heating angle according to the operating status of the air conditioner. The anti-condensation electric heating angle is determined through experiments in advance. Under the corresponding operating status of the air conditioner, the electric heating device does not produce or less The location of the condensation. Therefore, the air conditioner and control method of the present invention can avoid or reduce the problem of condensation in the electric heating device during the cooling or dehumidification process of the air conditioner.

Description of drawings

Figure 1 is a schematic diagram of an air conditioning indoor unit according to a specific embodiment of the present invention.

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

Figure 3 is a flow chart of specific embodiment 1 of the present invention.

Figure 4 is a schematic diagram of an air conditioning indoor unit according to the second specific embodiment of the present invention.

Figure 5 is a schematic diagram of an electric heating device according to the second specific embodiment of the present invention.

Figure 6 is a schematic diagram of the electric heating device and detection module according to the second specific embodiment of the present invention.

Figures 7-9 are flow charts of the second specific embodiment of the present invention.

Figure 10 is a correspondence table in cooling mode according to a specific embodiment of the present invention.

In the figure, 1. Evaporator; 2. Electric heating device; 3. Cross-flow fan; 4. Detection module; 5. Electric heating drive device.

Embodiments of the invention

Example 1

As shown in Figures 1-3, the air conditioner includes an evaporator 1, an electric heating device 2 and a cross-flow fan 3 located in a casing and arranged sequentially in the direction of air flow.

The air conditioner includes an electric heating device 2 and an electric heating driving device 5. The electric heating driving device 5 is used to drive the electric heating device 2 to rotate.

As shown in Figure 1, when the air conditioner is running for cooling or dehumidification, the temperatures of the upper space, lower space, left space and right 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 lower temperature around the electric heating is lower than the dew point temperature of the higher temperature, water condensation will occur between the two temperature areas, that is, when the electric heating Condensation has formed on the unit. During the operation of the air conditioner, the electric heating device continuously produces condensation water. After accumulating for a period of time, it will drip directly and be blown out directly by the cross-flow fan.

When the air conditioner is running, different operating states, such as wind speed, air deflector position, and compressor operating frequency (related to the ambient temperature and user-set temperature), cause the electric heating device to be at the same angle. The temperature distribution is inconsistent.

When the air conditioner is running for cooling or dehumidification, the angle of the electric heating is very important for the uniform distribution of the temperature field around the electric heating device. If the electric heating device is at an angle that causes the temperature field around the electric heating device to be unevenly distributed, it is easy for the electric heating device 2 to Condensation occurs on the electric heating device 2, and if the electric heating device is at an angle such that the temperature field around it is evenly distributed, condensation can be avoided or reduced on the electric heating device 2. Therefore, this embodiment determines through experiments in advance the operating state of the air conditioner and the position where the electric heating device does not produce condensation or produces the least condensation in this operating state, which is the anti-condensation angle of the electric heating. When the air conditioner is operating in this operating state, , directly drive the electric heating device to rotate through the electric heating drive device to the above-mentioned position where no condensation is generated or the least condensation is generated - the electric heating anti-condensation angle, which can quickly enter the anti-condensation state of the electric heating device and avoid the occurrence of condensation generated by the electric heating device. Condensation. The electric heating device of this embodiment can directly reach the anti-condensation position. There is no need for the electric heating device to rotate successively to set angles and test to find the anti-condensation angle. The anti-condensation efficiency is high, and it can also avoid the electric heating drive device from rotating multiple times and for a long time. Rotating noise is produced.

Specifically, the air conditioner includes an electric heating device, an electric heating driving device, a storage module and a control module.

The electric heating driving device 5 is used to drive the electric heating device 2 to rotate to adjust the angle of the electric heating device 2 .

The electric heating device 2 of the air conditioner is driven to rotate by an electric heating driving device 5. The electric heating device 2 is generally rotatably installed on the mounting bracket or the tube plate of the evaporator 1. The electric heating driving device 5 includes a driving motor, such as , stepper motor, the driving motor 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.

The electric heating drive device 5 generally drives the electric heating device 2 to rotate forward and reverse alternately within the rotation range. That is, the electric heating drive device 5 drives the electric heating device 2 to rotate forward from the initial angle to the end angle. The electric heating device is rotating. The electric heating drive device 5 drives the electric heating device 2 to rotate reversely from the end angle to the initial angle when the electric heating device 5 rotates once within the rotation range. This method avoids the entanglement of the electric heating wire.

The storage module is used to store the corresponding relationship between the operating status of the air conditioner and the anti-condensation electric heating angle.

The operating status of the air conditioner at least includes the operating mode (cooling or dehumidification), wind speed, air deflector position and compressor operating frequency (related to the ambient temperature and user-set temperature). In some embodiments, it may also include electronic expansion. Valve opening, etc.

In some embodiments, the corresponding relationship between the operating status of the air conditioner and the anti-condensation electric heating angle may be a functional relationship determined in advance through experiments.

In some embodiments, the corresponding relationship between the operating status of the air conditioner and the anti-condensation electric heating angle can also be a table correspondence. In the table correspondence, in order to simplify the procedure, for parameters that determine the value, for example, the compressor frequency is generally scope. For example, the corresponding table in cooling mode is shown in Figure 10:

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

Among them, the anti-condensation electric heating angle is specifically the angle of the electric heating device.

The air conditioner in this embodiment adjusts the electric heating device to directly rotate to the anti-condensation electric heating angle corresponding to the operating state of the air conditioner according to the operating state of the air conditioner, which can avoid or reduce condensation generated by the electric heating device when the air conditioner is operating.

The control method of the air conditioner is:

When the air conditioner is running for cooling or dehumidification, obtain the current operating status of the air conditioner;

Obtain the corresponding relationship between the operating status of the air conditioner and the anti-condensation electric heating angle;

According to the current operating state of the air conditioner, the anti-condensation electric heating angle corresponding to the current operating state is obtained;

The electric heating drive device drives the electric heating device to rotate to an anti-condensation electric heating angle.

As shown in Figure 3, the control method of the air conditioner in this embodiment is:

S1, air conditioner cooling or dehumidification operation.

S2. Obtain the current operating status of the air conditioner.

S3. Obtain the corresponding relationship between the operating status of the air conditioner and the anti-condensation electric heating angle.

S4. Obtain the anti-condensation electric heating angle corresponding to the current operating state according to the current operating state of the air conditioner.

S5. The electric heating drive device drives the electric heating device to rotate to an anti-condensation electric heating angle.

S6. Obtain the current operating status of the air conditioner. When the operating status of the air conditioner changes, proceed to step S3. Otherwise, continue to step S5.

Example

This embodiment adds a detection module based on the first embodiment. When the electric heating device is at an anti-condensation angle, in order to further avoid condensation, the detection module is also used to detect parameters around the electric heating device. When the parameters meet the condensation conditions, adjust the angle of the electric heating device. Generally, a slight adjustment is enough to avoid condensation in the electric heating device. When the parameters around the electric heating device do not meet the condensation conditions, keep the electric heating device from condensation. move.

As shown in Figures 4-6, the air conditioner includes an evaporator 1, an electric heating device 2 and a cross-flow fan 3 located in a casing and arranged sequentially in the direction of air flow.

Among them, the electric heating device 2 is generally rotatably installed on the mounting bracket or the tube plate of the evaporator 1. The electric heating driving device 5 includes a driving motor, such as a stepper motor, and the driving motor drives the electric heating device 2 to rotate.

In this embodiment, a detection module 4 is provided around the electric heating device 2. The air conditioner also includes an electric heating driving device 5. The electric heating driving device 5 is used to drive the electric heating device 2 to rotate.

The air conditioner further includes a timing module for timing after the electric heating device rotates to an anti-condensation electric heating angle.

The control module is used to detect condensation conditions after the electric heating device rotates to the anti-condensation electric heating angle, and after the timing module sets the time: obtain the parameters detected by the detection module; used to enter after the condensation condition detection is completed Dew condensation condition judgment: used to judge based on the parameters detected by the detection module when the condensation conditions of the electric heating device are met, control the electric heating drive device to drive the electric heating device to rotate at a set angle and maintain it at this angle for a set time, and then enter condensation The condition detection step is used to determine based on the parameters detected by the detection module when the condensation conditions of the electric heating device are not met, and control the electric heating device to not move.

When the air conditioner is cooling or dehumidifying, the electric heating device is at an anti-condensation angle and remains stationary. At this time, the electric heating device does not produce condensation or produces less condensation, in order to ensure the anti-condensation effect. After the electric heating device is at the anti-condensation angle setting time, it is further determined whether the electric heating device generates condensation through the parameters detected by the detection module 4 . The detection module 4 detects parameters, and determines whether the condensation conditions of the electric heating device 2 are met based on the parameters detected by the detection module 4. When the parameters detected by the detection module 4 meet the condensation conditions of the electric heating device 2, there is a risk of condensation, and the electric heating needs to be adjusted. At the angle of the device 2, the electric heating drive device 5 drives the electric heating device 2 to rotate at a set angle and maintain it at this angle for a set time. After that, the detection module 4 continues to detect parameters. The parameters detected in the detection module 4 do not meet the requirements of the electric heating device 2. Under dew conditions, there is no risk of condensation and the electric heating device does not move.

The control method of the air conditioner is:

The electric heating device rotates to the anti-condensation electric heating angle setting time;

Condensation condition detection steps: obtain the parameters detected by the detection module;

Condensation condition judgment step: According to the parameters detected by the detection module, when the condensation conditions of the electric heating device are met, the electric heating drive device drives the electric heating device to rotate to a set angle and maintain it at this angle for a set time, and then enters the condensation condition detection Step: According to the parameters detected by the detection module, it is judged that when the condensation conditions of the electric heating device are not met, the electric heating device does not move.

As shown in Figure 7, the control method of the air conditioner in this embodiment is:

S1. The electric heating device rotates to the anti-condensation electric heating angle setting time.

S2. The detection module detects parameters.

S3. Determine whether the condensation conditions of the electric heating device are met according to the parameters detected by the detection module. When the condensation conditions of the electric heating device are met, proceed to step S4; otherwise, proceed to step S5.

S4. The electric heating drive device drives the electric heating device to rotate at a set angle and maintain the angle for a set time, and then enters step S2.

S5. The electric heating device does not move and the air conditioner continues to operate according to the set state.

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

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

In some embodiments, the detection module 4 includes a temperature sensor located around the electrical heating device.

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 sensor is at a certain distance from the electric heating device and is used to measure the air temperature around the electric heating device.

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

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

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

Of course, the greater the number of temperature sensors, the better the anti-condensation effect.

In some embodiments, the air conditioner includes a detection module installation bracket, and the temperature sensor is installed on the detection module installation bracket. The installation bracket can be fixed in the air conditioner or fixed on the electric heating device to rotate synchronously with the electric heating device.

The control module is used to detect condensation conditions after the electric heating device rotates to the anti-condensation electric heating angle: to obtain the temperature detected by the temperature sensor; to enter the condensation condition judgment after the condensation condition detection is completed: to determine based on the temperature The temperature detected by the sensor determines the maximum temperature Tmax and the minimum temperature Tmin; it is used to control the electric heating drive device to drive the electric heating device to rotate at a set angle and maintain it at this angle when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature. Set the time, and then enter the condensation condition detection step; used to control the electric heating device to not move when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature.

After the electric heating device rotates to the anti-condensation electric heating angle for a set time, the temperature sensors at multiple locations detect the temperatures at multiple locations. The maximum temperature Tmax and minimum temperature Tmin are determined based on the temperatures detected by the temperature sensors. When the maximum temperature Tmax and When the difference between the minimum temperature Tmin is higher than the set temperature, there is a risk of condensation, and the angle of the electric heating device 2 needs to be adjusted. The electric heating drive device 5 drives the electric heating device 2 to rotate the set angle and maintain it at this angle for a set time. Adjust The windward angle of the electric heating device, and then continue the step of temperature sensor detection. 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 consistent, and there is no risk of condensation. The electric heating The device does not move. Otherwise, continue to rotate the electric heating device in the above manner, adjust the electric heating windward angle and detect 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 condensation. exposure risk.

Among them, the set temperature is an arbitrary value of 1±0.3°C, and is preferably 1°C.

The control method of the air conditioner is:

The electric heating device rotates to the anti-condensation electric heating angle setting time;

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

Dew condensation condition judgment step: determine the maximum temperature Tmax and 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 drive device drives the electric heating device to rotate the set angle And maintain it at this angle for the set time, and then enter the condensation condition detection step; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, the electric heating device does not move.

As shown in Figure 8, the control method of the air conditioner in this embodiment is:

S1. The electric heating device rotates to the anti-condensation electric heating angle setting time.

S2. The temperature sensor detects the temperature.

S3. Determine the maximum temperature Tmax and the minimum temperature Tmin according to the temperature detected by the temperature sensor, and calculate the difference between the maximum temperature and the minimum temperature Tmin.

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

S5. The electric heating drive device drives the electric heating device to rotate at a set angle and maintain the angle at a set time, and then enters step S2.

S6. The electric heating device does not move and the air conditioner continues to operate according to the set state.

In step S6, when the angle of the electric heating device is specified, the temperature field around the electric heating device is evenly distributed and will not cause condensation on the electric heating device. Therefore, the electric heating device does not move and the air conditioner continues to operate according to the set state.

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

In this embodiment, an electric heating device driving device is added to the electric heating device, so that the angle of the electric heating device can be adjusted according to the system settings during actual operation of the air conditioner. Cooperate with the temperature sensor installed around the electric heating device 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 fixed angle. When the temperature field exceeds the set deviation range, the electric heating device is rotated until the position of the electric heating device makes the temperature field around it uniform. On the basis of the anti-condensation angle, the electric heating device of this embodiment can adjust the angle of the electric heating device according to the operating status of the air conditioner, so as to make the temperature field around the electric heating device uniform and avoid the alternating mixing of hot and cold air around the electric heating device. Condensation and dripping.

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

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

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

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

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

Of course, the greater the number of temperature sensors, the better the anti-condensation effect.

In some embodiments, the air conditioner includes a detection module installation bracket, and the temperature sensor is installed on the detection module installation bracket. The installation bracket can be fixed in the air conditioner or fixed on the electric heating device to rotate synchronously with the electric heating device.

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

The control module is used to detect condensation conditions after the electric heating device rotates to the anti-condensation electric heating angle for a set time: obtain the humidity S detected by the humidity sensor, and obtain the temperature detected by the temperature sensor; used to detect condensation conditions after the detection of condensation conditions is completed. Then enter the condensation condition judgment: used to determine the maximum temperature Tmax and minimum temperature Tmin based on the temperature detected by the temperature sensor, and determine the dew point temperature K based on the maximum temperature Tmax and humidity S; used to control when the dew point temperature K is higher than the minimum temperature Tmin. The electric heating drive device drives the electric heating device to rotate at a set angle and maintain it at this angle for a set time, and then enters the condensation condition detection step; it is used to control the electric heating device to not move when the dew point temperature K is lower than the minimum temperature Tmin.

After the electric heating device rotates to the anti-condensation electric heating angle for a set time, the humidity sensor detects the humidity, and the multiple position temperature sensors detect the temperature at multiple positions. The maximum temperature Tmax and the minimum temperature Tmin are determined based on the temperatures detected by the temperature sensors. According to The maximum temperature Tmax and humidity S determine the dew point temperature K; when the dew point temperature K is higher than the minimum temperature Tmin, there is a risk of condensation, and the angle of the electric heating device 2 needs to be adjusted. The electric heating drive device 5 drives the electric heating device 2 to rotate at a set angle. And maintain this angle for the set time, adjust the windward angle of the electric heating device, and then continue the steps of temperature sensor detection. When the dew point temperature K is lower than the minimum temperature Tmin, the temperature around the electric heating device becomes consistent and there is no condensation. If there is a risk of dew, the electric heating device does not move and the air conditioner continues to operate according to the set state. Otherwise, continue to rotate the electric heating device in the above manner, adjust the electric heating windward angle and detect the temperature and humidity until the electric heating device rotates to the dew point temperature. When K is lower than the minimum temperature Tmin, there is no risk of condensation.

The control method of the air conditioner is:

After the electric heating device rotates to the anti-condensation electric heating angle setting time;

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

Dew condensation condition judgment step: determine the maximum temperature Tmax and minimum temperature Tmin according to the temperature detected by the temperature sensor, determine the dew point temperature K according to the maximum temperature Tmax and humidity S; when the dew point temperature K is higher than the minimum temperature Tmin, the electric heating drive device drives the electric heating device. The heating device rotates to a set angle and maintains it at this angle for a set time, and then enters the condensation condition detection step; when the dew point temperature K is lower than the minimum temperature Tmin, the electric heating device does not move.

As shown in Figure 9, the control method of the air conditioner in this embodiment is:

S1. The electric heating device rotates to the anti-condensation electric heating angle setting time.

S2. The humidity sensor detects the humidity S, and the temperature sensor detects the temperature.

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

S4. When the dew point temperature K is higher than the minimum temperature Tmin, go to step S5; otherwise, go to step S6.

S5. The electric heating drive device drives the electric heating device to rotate at a set angle and maintain the angle at the set angle for a set time, and then enters step S2.

S6. The electric heating device does not move and the air conditioner continues to operate according to the set state.

In step S6, when the angle of the electric heating device is specified, the temperature field around the electric heating device is evenly distributed and will not cause condensation on the electric heating device. Therefore, the electric heating device does not move and the air conditioner continues to operate according to the set state.

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

In this embodiment, an electric heating device driving device is added to the electric heating device, so that the angle of the electric heating device can be adjusted according to the system settings during actual operation of the air conditioner. Cooperate with the temperature sensor and humidity sensor installed around the electric heating device 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 fixed angle. When the temperature field exceeds the set deviation range, the electric heating device is rotated until the position of the electric heating device makes the temperature field around it uniform. On the basis of the anti-condensation angle, the electric heating device of this embodiment can adjust the angle of the electric heating device according to the operating status of the air conditioner, so as to make the temperature field around the electric heating device uniform and avoid the alternating mixing of hot and cold air around the electric heating device. Condensation and dripping.

Claims (10)

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;

   A storage module used to store the corresponding relationship between the operating status of the air conditioner and the anti-condensation electric heating angle;

   A control module used to obtain the current operating status of the air conditioner when the air conditioner is running for cooling or dehumidification, and to obtain the corresponding relationship between the operating status of the air conditioner stored in the storage module and the anti-condensation electric heating angle, It is used to obtain the anti-condensation electric heating angle corresponding to the current operating state according to the current operating state of the air conditioner, and to control the electric heating driving device to drive the electric heating device to rotate to the anti-condensation electric heating angle.
2. The air conditioner according to claim 1, characterized in that the air conditioner includes a detection module located around the electric heating device, and the control module is used to rotate the electric heating device to an anti-condensation electric heating angle. Then, perform condensation condition detection: obtain the parameters detected by the detection module; used to enter the condensation condition judgment after the detection of the condensation condition: used to judge based on the parameters detected by the detection module when the electric heating device is satisfied When condensation conditions occur, control the electric heating drive device to drive the electric heating device to rotate at a set angle and maintain it at this angle for a set time, and then enter the condensation condition detection step; used to judge based on parameters detected by the detection module When the condensation conditions of the electric heating device are not met, the electric heating device is controlled to not move.
3. The air conditioner according to claim 2, wherein the detection module includes at least two temperature sensors arranged around the electric heating device, and a plane 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 after the electric heating device rotates to an anti-condensation electric heating angle: obtain the temperature detected by the temperature sensor; and is used to detect condensation conditions after the detection of condensation conditions is completed. Judgment of entering condensation conditions: used to determine the maximum temperature Tmax and minimum temperature Tmin based on the temperature detected by the temperature sensor; used to control the electric heating drive when the difference between the maximum temperature Tmax and the minimum temperature Tmin is higher than the set temperature The device drives the electric heating device to rotate at a set angle and maintain it at this angle for a set time, and then enters the condensation condition detection step; used to control the said electric heating device when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature. The electric heating device does not move.
4. The air conditioner according to claim 2, wherein the detection module includes a humidity sensor and at least two temperature sensors arranged around the electric heating device, and the at least two temperature sensors are in contact with the rotation axis of the electric heating device. The formed planes are different planes; the control module is used to detect condensation conditions after the electric heating device rotates to an anti-condensation electric heating angle: obtain the humidity S detected by the humidity sensor, and obtain the temperature sensor The detected temperature; used to enter the condensation condition judgment after the detection of the condensation condition: used to determine the maximum temperature Tmax and the minimum temperature Tmin based on the temperature detected by the temperature sensor, and determine the dew point temperature based on the maximum temperature Tmax and humidity S K; used to control the electric heating drive device to drive the electric heating device to rotate at a set angle and maintain it at the angle for a set time when the dew point temperature K is higher than the minimum temperature Tmin, and then enter the condensation condition detection step; use When the dew point temperature K is lower than the minimum temperature Tmin, the electric heating device is controlled not to move.
5. The air conditioner according to any one of claims 2 to 4, characterized in that the air conditioner includes a timing module for timing after the electric heating device rotates to an anti-condensation electric heating angle; the control The module is used to detect condensation conditions after the timing module sets the time.
6. A control method for an air conditioner, characterized in that the air conditioner includes an electric heating device and an electric heating driving device, and the electric heating driving device is used to drive the electric heating device to rotate. The control method is:

   When the air conditioner is running for cooling or dehumidification, obtain the current operating status of the air conditioner;

   Obtain the corresponding relationship between the operating status of the air conditioner and the anti-condensation electric heating angle;

   Obtain the anti-condensation electric heating angle corresponding to the current operating state according to the current operating state of the air conditioner;

   The electric heating driving device drives the electric heating device to rotate to the anti-condensation electric heating angle.
7. The control method of an air conditioner according to claim 6, wherein the air conditioner includes a detection module located around the electric heating device, and the control method is:

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

   Condensation condition detection step: obtain the parameters detected by the detection module;

   Condensation condition determination step: determine according to the parameters detected by the detection module that when the condensation condition of the electric heating device is met, the electric heating drive device drives the electric heating device to rotate at a set angle and maintain it at the set angle. time, and then enter the condensation condition detection step; when it is judged according to the parameters detected by the detection module that the condensation condition of the electric heating device is not met, the electric heating device does not move.
8. The control method of an air conditioner according to claim 7, wherein the detection module includes at least two temperature sensors arranged around the electric heating device, and the at least two temperature sensors are connected to the rotation axis of the electric heating device. The formed planes are different planes; the control method is:

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

   Condensation condition detection step: obtain the temperature detected by the temperature sensor;

   Dew condensation condition judgment step: determine 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 drive device drives the electric heating drive device. The heating device rotates the set angle and maintains it at this angle for the set time, and then enters the condensation condition detection step; when the difference between the maximum temperature Tmax and the minimum temperature Tmin is lower than the set temperature, the electric heating device does not move.
9. The control method of an air conditioner according to claim 7, wherein the detection module includes a humidity sensor and at least two temperature sensors arranged around the electric heating device, and the at least two temperature sensors are in contact with the electric heating device. The planes formed by the rotation axes are different planes; the control method is:

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

   Condensation condition detection step: obtain the humidity S detected by the humidity sensor, and obtain the temperature detected by the temperature sensor;

   Dew condensation condition judgment step: determine the maximum temperature Tmax and minimum temperature Tmin according to the temperature detected by the temperature sensor, determine the dew point temperature K according to the maximum temperature Tmax and humidity S; when the dew point temperature K is higher than the minimum temperature Tmin, the The electric heating drive device drives the electric heating device to rotate at a set angle and maintain it at this angle for a set time, and then enters the condensation condition detection step; when the dew point temperature K is lower than the minimum temperature Tmin, the electric heating device does not move.
10. The air conditioner according to any one of claims 7 to 9, characterized in that the condensation condition detection is performed after the electric heating device rotates to the anti-condensation electric heating angle setting time.