CN115307298A - Air conditioner control method and device, air conditioner and storage medium - Google Patents

Abstract

The invention discloses an air conditioner control method and device, an air conditioner and a storage medium, and belongs to the technical field of air conditioners. The invention detects the operation condition and the outdoor environment temperature of the air conditioner when the air conditioner is started to operate; according to the operating condition with outdoor ambient temperature adjusts the opening angle of wind-guiding strip, judge whether the air conditioner is in the high temperature heating or cryogenic overload running state based on operating condition and outdoor ambient temperature to set up the wind-guiding strip on the condenser in the outdoor unit through the control, thereby the heat transfer area of adjustment condenser, pressure in the air conditioner has been balanced, the compressor that has avoided low temperature refrigeration or high temperature to heat to cause frequently opens and stops, make the compressor can reliable and stable operation, indoor temperature balance has been guaranteed, user experience has been promoted.

Description

Air conditioner control method, device, air conditioner and storage medium

technical field

The present invention relates to the technical field of air conditioners, in particular to an air conditioner control method and device, an air conditioner and a storage medium.

Background technique

In the fixed frequency air conditioner market, due to its price advantage, most of the air conditioner market. The improvement of heating performance and experience of fixed-frequency air conditioners is becoming more and more important, especially when the indoor temperature reaches above 26 degrees to achieve stable heating and maintain indoor temperature balance.

The current mainstream control method is to reduce the speed of the external fan or stop the compressor. However, the current fixed-frequency air conditioners are all fixed-type throttle bodies. In the heating and cooling overload of the fixed-frequency air-conditioning system, the pressure is too high, which leads to the situation that the compressor has to be started frequently or even cannot be started for self-protection, which leads to indoor The temperature fluctuates greatly, which affects the user experience.

The above content is only used to assist in understanding the technical solution of the present invention, and does not mean that the above content is admitted as prior art.

Contents of the invention

The main purpose of the present invention is to provide an air conditioner control method, device, air conditioner and storage medium, aiming to solve the technical problem that the control method in the prior art will cause large fluctuations in indoor temperature and affect the user experience.

To achieve the above object, the present invention provides a method for controlling an air conditioner, wherein the condenser in the outdoor unit of the air conditioner is provided with an air guide strip;

The air conditioner control method includes the following steps:

When the air conditioner is turned on and running, detecting the operating condition and the outdoor ambient temperature of the air conditioner; and

The opening angle of the air guide strip is adjusted according to the operating conditions and the outdoor ambient temperature.

Optionally, the adjusting the opening angle of the air guide strip according to the operating conditions and the outdoor ambient temperature includes:

When the operating condition is a heating condition, comparing the outdoor ambient temperature with a heating condition temperature threshold; and

When the outdoor ambient temperature is less than or equal to the temperature threshold of the heating working condition, the air guiding strip is adjusted to a maximum opening angle.

Optionally, when the operating condition is the heating condition, after comparing the outdoor ambient temperature with the heating condition temperature threshold, it further includes:

Acquiring the temperature of the evaporator when the outdoor ambient temperature is greater than the heating condition temperature threshold;

When the evaporator temperature is less than or equal to the preset evaporator temperature under the heating condition, the air guiding strip is adjusted to a first preset opening angle.

Optionally, after obtaining the temperature of the evaporator when the outdoor ambient temperature is greater than the temperature threshold in heating mode, the method further includes:

When the evaporator temperature is greater than the preset evaporator temperature under the heating condition, determine whether the evaporator temperature is lower than the first evaporator protection temperature;

If yes, adjust the air guide strip to a second preset opening angle, the second preset opening angle is smaller than the first preset opening angle;

If not, close the air guide strip, and control the compressor to stop when the evaporator temperature is greater than or equal to the duration corresponding to the first evaporator protection temperature and exceeds a preset time period.

Optionally, the adjusting the opening angle of the air guide strip according to the operating conditions and the outdoor ambient temperature further includes:

When the operating condition is a cooling condition, comparing the outdoor ambient temperature with a cooling condition temperature threshold; and

When the outdoor ambient temperature is greater than or equal to the temperature threshold of the cooling working condition, the air guiding strip is adjusted to a maximum opening angle.

Optionally, when the operating condition is the cooling condition, after comparing the outdoor ambient temperature with the cooling condition temperature threshold, it further includes:

Obtaining the temperature of the evaporator when the outdoor ambient temperature is lower than the temperature threshold of the refrigeration working condition;

When the temperature of the evaporator is greater than or equal to the preset evaporator temperature under the refrigeration working condition, the air guiding strip is adjusted to a first preset opening angle.

Optionally, after obtaining the temperature of the evaporator when the outdoor ambient temperature is lower than the temperature threshold of the cooling working condition, the method further includes:

When the temperature of the evaporator is lower than the preset evaporator temperature under the cooling condition, it is judged whether the temperature of the evaporator is greater than or equal to the second evaporator protection temperature;

If yes, adjust the air guide strip to a second preset opening angle, the second preset opening angle is smaller than the first preset opening angle;

If not, close the air guide strip, and control the compressor to stop when the evaporator temperature is lower than the second evaporator protection temperature for a duration corresponding to a preset duration.

In addition, in order to achieve the above object, the present invention also proposes an air conditioner control device, the condenser in the outdoor unit of the air conditioner is provided with an air guide strip;

The air conditioner control device includes:

A detection module, configured to detect the operating conditions and outdoor ambient temperature of the air conditioner when the air conditioner is powered on; and

An adjustment module, configured to adjust the opening angle of the air guide strip according to the operating conditions and the outdoor ambient temperature.

In addition, in order to achieve the above object, the present invention also proposes an air conditioner, the air conditioner includes: a memory, a processor, and an air conditioner control program stored in the memory and running on the processor, the air conditioner The air conditioner control program is configured to implement the air conditioner control method as described above.

In addition, to achieve the above object, the present invention also proposes a storage medium, on which an air conditioner control program is stored, and when the air conditioner control program is executed by a processor, the air conditioner control method as described above is realized.

The present invention detects the operating conditions of the air conditioner and the outdoor ambient temperature when the air conditioner is turned on; adjusts the opening angle of the air guide strip according to the operating conditions and the outdoor ambient temperature; and the outdoor ambient temperature to judge whether the air conditioner is in the overload operation state of high temperature heating or low temperature cooling, and adjust the heat exchange area of the condenser by controlling the air guide strips installed on the condenser in the outdoor unit to balance the air conditioner The pressure inside the compressor avoids the frequent start and stop of the compressor caused by low-temperature refrigeration or high-temperature heating, so that the compressor can run stably and reliably, ensuring the indoor temperature balance and improving the user experience.

Description of drawings

Fig. 1 is a schematic structural view of an air conditioner in a hardware operating environment related to the solution of an embodiment of the present invention;

2 is a schematic flow chart of the first embodiment of the air conditioner control method of the present invention;

Fig. 3 is a structural schematic diagram of the air conditioner in an embodiment of the air conditioner control method of the present invention;

4 is a schematic flowchart of a second embodiment of the air conditioner control method of the present invention;

Fig. 5 is a schematic diagram of fully opening the air guide strip in an embodiment of the air conditioner control method of the present invention;

Fig. 6 is a schematic diagram of half-opening of the air guide strip in an embodiment of the air conditioner control method of the present invention;

Fig. 7 is a schematic diagram of the complete closing of the air guide strip in an embodiment of the air conditioner control method of the present invention;

8 is a schematic flowchart of a third embodiment of the air conditioner control method of the present invention;

Fig. 9 is a structural block diagram of the first embodiment of the air conditioner control device of the present invention.

Explanation of reference signs

1 Fixed frequency compressor 5 Condenser protection air guide strip 2 Four-way valve 6 throttle valve 3 condenser 7 indoor fan 4 outdoor fan 8 Evaporator

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Referring to FIG. 1 , FIG. 1 is a schematic structural diagram of an air conditioner in a hardware operating environment involved in the solution of an embodiment of the present invention.

As shown in FIG. 1 , the air conditioner may include: a processor 1001 , such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a Wireless-Fidelity (Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) memory, or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001 .

Those skilled in the art can understand that the structure shown in Fig. 1 does not constitute a limitation to the air conditioner, and may include more or less components than shown in the figure, or combine some components, or arrange different components.

As shown in FIG. 1 , the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and an air conditioner control program.

In the air conditioner shown in Figure 1, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the air conditioner of the present invention can be set in In the air conditioner, the air conditioner calls the air conditioner control program stored in the memory 1005 through the processor 1001, and executes the air conditioner control method provided in the embodiment of the present invention.

An embodiment of the present invention provides a method for controlling an air conditioner. Referring to FIG. 2 , FIG. 2 is a schematic flowchart of a first embodiment of a method for controlling an air conditioner according to the present invention.

In this embodiment, the air conditioner control method includes the following steps:

Step S10: When the air conditioner is turned on and running, detect the operating condition of the air conditioner and the outdoor ambient temperature.

The executor of this embodiment may be the air conditioner control device, which has functions of data processing, data communication, and program operation, and the air conditioner control device may be a controller inside the air conditioner. Of course, it can also be other devices with similar functions, which are not limited by the present implementation conditions. For ease of description, this embodiment is described by taking an air conditioner control device as an example.

It should be noted that in the fixed-frequency air conditioner market, due to its price advantage, most of the air conditioner market. The improvement of heating performance and experience of fixed-frequency air conditioners is becoming more and more important, especially when the indoor temperature reaches above 26 degrees to achieve stable heating and maintain indoor temperature balance. The current mainstream control method is to reduce the speed of the external fan or stop the compressor. However, the current fixed-frequency air conditioners are all fixed-type throttle bodies. In the heating and cooling overload of the fixed-frequency air-conditioning system, the pressure is too high, which leads to the situation that the compressor has to be started frequently or even cannot be started for self-protection, which leads to indoor The temperature fluctuates greatly, which affects the user experience.

In this embodiment, in order to solve the above-mentioned technical problems, by detecting the operating conditions of the air conditioner, combined with the outdoor ambient temperature, it is judged whether the air conditioner is in the overload operation state of high-temperature heating or low-temperature cooling, because in these two cases, it is easy to The pressure inside the air conditioner is too high. For this situation, the method adopted in this embodiment is to change the heat exchange area of the condenser in the outdoor unit to balance the pressure inside the air conditioner. Specifically, in this embodiment, change The heat exchange area of the condenser in the outdoor unit is determined by the opening angle of the air guide strips provided on the condenser of the air conditioner.

In the specific implementation, an air conditioner structure is first proposed in this embodiment, as shown in Figure 3, the air conditioner shown in Figure 3 includes a fixed frequency air conditioner 1, a four-way valve 2, a condenser 3, and an outdoor fan 4 , Condenser protection air guide strip 5, throttle valve 6, indoor fan 7 and evaporator 8. Wherein, the condenser 3 also includes a pipeline temperature sensor and an external environment temperature sensor (not shown in the figure), and the evaporator 8 also includes an evaporator pipeline temperature sensor (not shown in the figure). The fixed-frequency air conditioner 1 is the heart of the air-conditioning system, which compresses and transports the refrigerant, and its speed is not variable. The four-way valve 2 realizes the switching between cooling and heating. When heating, it is used as the evaporation end to absorb heat for the refrigerant. The pipeline temperature sensor is used to detect the temperature of the copper pipe surface, the external environment temperature sensor is used to detect the temperature of the outdoor air, and the condenser protection air guide strip 5 is used to Control the heat dissipation area of the condenser and the protection of the condenser. The throttle valve 6 is used for throttling and reducing pressure when the system is heating. When the system is cooling, it plays the role of throttling and reducing pressure. When the system is heating, it does not play the role of throttling, that is, one-way throttling and reverse non-throttling. The indoor fan 7 is used to drive The indoor air passes through the heat exchanger to exchange heat between the air and the refrigerant in the pipe. The evaporator 8 acts as an evaporation end for cooling and absorbs heat for the refrigerant, and acts as a condensation end for heat dissipation when used for heating. When the system is heating, the high-temperature and high-pressure gas refrigerant discharged from the compressor flows through the four-way valve, enters the evaporator side for heat dissipation, passes through the filter, and then is throttled by the heating throttle valve to form a low-temperature and low-pressure refrigerant. It goes to the outdoor condenser for heat absorption and evaporation, and then flows into the gas-liquid separator for gas-liquid separation. The gaseous refrigerant returns to the compressor for circulation. When cooling, it is reversed through the four-way valve.

In specific implementation, in this embodiment, there are corresponding control logics for the heating condition and the cooling condition, and the heating condition is taken as an example for description. Turn on the heating and detect the outdoor ambient temperature T4. When it is detected that T4≤T4 is preset, T4 is preset as the temperature threshold of the heating condition, indicating that the ambient temperature of the external unit of the air conditioning system is not high, which belongs to non-high temperature heating , the condenser air guide strip needs to be 100% open, and there is no need to control the cooling area of the condenser. When it is detected that T4>T4 is preset, it means that the ambient temperature of the outdoor unit of the air conditioning system is relatively high, which belongs to high-temperature heating. After the compressor is started, it is judged whether the evaporator temperature sensor T2≤T2 preset, and T2 is preset as heating Evaporator protection temperature under working conditions, if T2≤T2 preset, then close the condenser air guide strip by 50%, if T2>T2 preset, further compare T2 with T2 protection, T2 protection is the heating condition The lower evaporator protection temperature. If T2 protection > T2 > T2 preset, the condenser air guide strip is closed at 51-90%. In this embodiment, the condenser air guide strip can be closed by 90%. If T2 protection < T2, the condenser air guide strip When the wind strip is 100% closed, and the duration of T2 protection < T2 exceeds 30 seconds, the compressor is controlled to stop.

Under the cooling condition, the outdoor ambient temperature T4 is detected. When T4 ≥ T4 is detected, T4 is preset as the temperature threshold of the cooling condition, indicating that the ambient temperature of the external unit of the air conditioning system is relatively high, which belongs to non-low temperature refrigeration. The condenser air guide strip needs to be 100% open, and there is no need to control the cooling area of the condenser. When it is detected that T4<T4 preset, it means that the ambient temperature of the external unit of the air conditioning system is low, which belongs to low-temperature refrigeration. After the compressor is started, it is judged whether the evaporator temperature sensor T2 is ≤ T2 preset, and T2 is preset as a cooling condition Under the evaporator protection temperature, if T2≥T2 preset, then close the condenser air guide strip by 50%, if T2<T2 preset, further compare T2 with T2 protection, T2 protection is evaporation under cooling conditions Protector temperature. If T2 protection≤T2<T2 preset, then the condenser air guide strip is closed at 51-90%. In this embodiment, the condenser air guide strip can be closed by 90%. If T2 protection>T2, the condenser air guide strip When the air bar is 100% off, and the duration of T2 protection>T2 exceeds 30 seconds, the compressor is controlled to stop. It should be noted that the temperature threshold of the heating condition is greater than the temperature threshold of the cooling condition, and the evaporator protection temperature under the heating condition is greater than the evaporator protection temperature under the cooling condition. The specific value can be set accordingly according to actual needs. This is not limited in this embodiment.

In a specific implementation, in this embodiment, the operating conditions of the air conditioner and the outdoor ambient temperature need to be detected, and the outdoor ambient temperature can be collected by an external ambient temperature sensor.

Step S20: Adjust the opening angle of the air guide strip according to the operating conditions and the outdoor ambient temperature.

It should be noted that the difference from the current control method is that in this embodiment, the condenser of the indoor fan is provided with an air guide strip, while the condenser in the current air conditioner is in a bare state, the air guide strip set in this embodiment The cooling area of the condenser can be changed.

In specific implementation, in this embodiment, the obtained operating conditions of the air conditioner and the outdoor ambient temperature are used as judgment conditions for the control of the air guide strips, and the air guide strips are controlled in a targeted manner according to different operating conditions.

In this embodiment, when the air conditioner is turned on and running, the operating condition and the outdoor ambient temperature of the air conditioner are detected; the opening angle of the air guide strip is adjusted according to the operating condition and the outdoor ambient temperature, Judging whether the air conditioner is in the overload operation state of high-temperature heating or low-temperature cooling according to the conditions and the outdoor ambient temperature, and by controlling the air guide strips on the condenser installed in the outdoor unit, the heat exchange area of the condenser is adjusted to balance the air conditioner. The pressure inside the air conditioner avoids the frequent start and stop of the compressor caused by low-temperature refrigeration or high-temperature heating, so that the compressor can run stably and reliably, ensuring the indoor temperature balance and improving the user experience.

Referring to FIG. 4 , FIG. 4 is a schematic flowchart of a second embodiment of an air conditioner control method according to the present invention.

Based on the first embodiment above, in the air conditioner control method of this embodiment, the step S20 includes:

Step S201: When the operating condition is the heating condition, compare the outdoor ambient temperature with a temperature threshold of the heating condition.

In a specific implementation, when the air conditioner is in the heating condition, in this embodiment, the outdoor ambient temperature is compared with the temperature threshold in the heating condition.

Step S202: When the outdoor ambient temperature is less than or equal to the temperature threshold of the heating working condition, adjust the air guide strip to a maximum opening angle.

In specific implementation, if the outdoor ambient temperature is less than or equal to the temperature threshold of the heating condition, it means that the ambient temperature of the external unit of the air conditioning system is not high at this time, which belongs to non-high temperature heating, and the condenser air guide strip needs to be 100% open. That is to say, adjust the air guide strip to the maximum opening angle, as shown in Figure 5, without controlling the heat dissipation area of the condenser.

Further, if the outdoor ambient temperature is greater than the temperature threshold of the heating working condition, it means that the ambient temperature of the external unit of the air conditioning system is relatively high, which belongs to high-temperature heating. In this case, the evaporator temperature will be further obtained in this embodiment. If the evaporator temperature is less than or equal to the preset evaporator temperature under heating conditions, adjust the air guiding strip to the first preset opening angle, for example, the condenser air guiding strip is closed by 50%, as shown in Figure 6 , the first preset angle can be adjusted accordingly according to requirements, which is not limited in this embodiment. If the evaporator temperature is greater than the preset evaporator temperature under the heating condition, the evaporator temperature is further compared with the first evaporator protection temperature. If the evaporator temperature is higher than the preset evaporator temperature under the heating condition, but lower than the first evaporator protection temperature, adjust the air guiding strip to the second preset opening angle, wherein the second preset opening angle is smaller than the first A preset opening angle, such as closing the air guiding strip by 90%, the specific angle can be set according to actual needs. If the evaporator temperature is greater than or equal to the first evaporator protection temperature, then completely close the air guide strip, as shown in Figure 7, and record the duration of the evaporator temperature greater than or equal to the first evaporator protection temperature, if the duration If the preset time is exceeded, the compressor is controlled to stop to protect the compressor. The preset duration can be set to 30s, and can also be set to a duration, which is not limited in this embodiment.

In this embodiment, when the operating condition is the heating condition, the outdoor ambient temperature is compared with the temperature threshold of the heating condition, and the high temperature heating judgment is made based on the comparison result, and at the same time, the evaporator protection is combined Adjusting the temperature of the air guide strip can ensure the smooth start of the compressor under heating conditions, avoid frequent start and stop of the compressor, reduce the impact of noise, and make the compressor run reliably.

Referring to FIG. 8 , FIG. 8 is a schematic flowchart of a third embodiment of an air conditioner control method according to the present invention.

Based on the first embodiment above, in the air conditioner control method of this embodiment, the step S20 further includes:

Step S203: When the operating condition is the cooling condition, compare the outdoor ambient temperature with a temperature threshold of the cooling condition.

In a specific implementation, when the air conditioner is in the heating mode, in this embodiment, the outdoor ambient temperature is compared with the temperature threshold in the cooling mode. The temperature threshold in heating mode is greater than the temperature threshold in cooling mode.

Step S204: When the outdoor ambient temperature is greater than or equal to the temperature threshold of the cooling working condition, adjust the air guiding strip to a maximum opening angle.

In specific implementation, in specific implementation, if the outdoor ambient temperature is greater than or equal to the temperature threshold of cooling working conditions, it means that the ambient temperature of the external unit of the air conditioning system is relatively high at this time, which belongs to non-low temperature cooling, and the condenser air guide strip 100 is required. % open, that is, adjust the air guide strip to the maximum opening angle, as shown in Figure 5, without controlling the heat dissipation area of the condenser.

Furthermore, if the outdoor ambient temperature is lower than the temperature threshold of the cooling working condition, it means that the ambient temperature of the external unit of the air conditioning system is relatively low, which belongs to low-temperature refrigeration. In this case, the evaporator temperature will be further obtained in this embodiment. If the evaporator temperature is greater than or equal to the preset evaporator temperature under cooling conditions, adjust the air guiding strip to the first preset opening angle, for example, the condenser air guiding strip is closed by 50%, as shown in Figure 6, The first preset angle can be adjusted accordingly according to requirements, which is not limited in this embodiment. If the evaporator temperature is lower than the preset evaporator temperature under the cooling condition, the evaporator temperature is further compared with the second evaporator protection temperature. If the evaporator temperature is greater than or equal to the second evaporator protection temperature, adjust the air guide strip to the second preset opening angle, wherein the second preset opening angle is smaller than the first preset opening angle, for example, close the air guide strip 90%, the specific angle can be set according to actual needs. If the evaporator temperature is lower than the second evaporator protection temperature, completely close the air guide strip, as shown in Figure 7, and record the duration that the evaporator temperature is lower than the second evaporator protection temperature, if the duration exceeds the preset duration , the compressor is controlled to shut down to protect the compressor. The preset duration can be set to 30s, and can also be set to a duration, which is not limited in this embodiment.

In this embodiment, when the operating condition is the cooling condition, the outdoor ambient temperature is compared with the temperature threshold of the heating condition, and the high-temperature heating judgment is made based on the comparison result. The adjustment of the air guide strip can ensure the smooth start of the compressor under the cooling condition, and at the same time avoid frequent start and stop of the compressor, reduce the impact of noise, and make the compressor run reliably.

In addition, an embodiment of the present invention also proposes a storage medium, on which an air conditioner control program is stored, and when the air conditioner control program is executed by a processor, the steps of the air conditioner control method as described above are implemented.

Since the storage medium adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

Referring to Fig. 9, Fig. 9 is a structural block diagram of the first embodiment of the air conditioner control device of the present invention.

As shown in Figure 9, the air conditioner control device proposed by the embodiment of the present invention includes:

The detection module 10 is configured to detect the operating condition of the air conditioner and the outdoor ambient temperature when the air conditioner is turned on and running.

The executor of this embodiment may be the air conditioner control device, which has functions of data processing, data communication, and program operation, and the air conditioner control device may be a controller inside the air conditioner. Of course, it can also be other devices with similar functions, which are not limited by the present implementation conditions. For ease of description, this embodiment is described by taking an air conditioner control device as an example.

It should be noted that in the fixed-frequency air conditioner market, due to its price advantage, most of the air conditioner market. The improvement of heating performance and experience of fixed-frequency air conditioners is becoming more and more important, especially when the indoor temperature reaches above 26 degrees to achieve stable heating and maintain indoor temperature balance. The current mainstream control method is to reduce the speed of the external fan or stop the compressor. However, the current fixed-frequency air conditioners are all fixed-type throttle bodies. In the heating and cooling overload of the fixed-frequency air-conditioning system, the pressure is too high, which leads to the situation that the compressor has to be started frequently or even cannot be started for self-protection, which leads to indoor The temperature fluctuates greatly, which affects the user experience.

In this embodiment, in order to solve the above-mentioned technical problems, by detecting the operating conditions of the air conditioner, combined with the outdoor ambient temperature, it is judged whether the air conditioner is in the overload operation state of high-temperature heating or low-temperature cooling, because in these two cases, it is easy to The pressure inside the air conditioner is too high. For this situation, the method adopted in this embodiment is to change the heat exchange area of the condenser in the outdoor unit to balance the pressure inside the air conditioner. Specifically, in this embodiment, change The heat exchange area of the condenser in the outdoor unit is determined by the opening angle of the air guide strips provided on the condenser of the air conditioner.

In the specific implementation, an air conditioner structure is first proposed in this embodiment, as shown in Figure 3, the air conditioner shown in Figure 3 includes a fixed frequency air conditioner 1, a four-way valve 2, a condenser 3, and an outdoor fan 4 , Condenser protection air guide strip 5, throttle valve 6, indoor fan 7 and evaporator 8. Wherein, the condenser 3 also includes a pipeline temperature sensor and an external environment temperature sensor (not shown in the figure), and the evaporator 8 also includes an evaporator pipeline temperature sensor (not shown in the figure). The fixed-frequency air conditioner 1 is the heart of the air-conditioning system, which compresses and transports the refrigerant, and its speed is not variable. The four-way valve 2 realizes the switching between cooling and heating. When heating, it is used as the evaporation end to absorb heat for the refrigerant. The pipeline temperature sensor is used to detect the temperature of the copper pipe surface, the external environment temperature sensor is used to detect the temperature of the outdoor air, and the condenser protection air guide strip 5 is used to Control the heat dissipation area of the condenser and the protection of the condenser. The throttle valve 6 is used for throttling and reducing pressure when the system is heating. When the system is cooling, it plays the role of throttling and reducing pressure. When the system is heating, it does not play the role of throttling, that is, one-way throttling and reverse non-throttling. The indoor fan 7 is used to drive The indoor air passes through the heat exchanger to exchange heat between the air and the refrigerant in the pipe. The evaporator 8 acts as an evaporation end for cooling and absorbs heat for the refrigerant, and acts as a condensation end for heat dissipation when used for heating. When the system is heating, the high-temperature and high-pressure gas refrigerant discharged from the compressor flows through the four-way valve, enters the evaporator side for heat dissipation, passes through the filter, and then is throttled by the heating throttle valve to form a low-temperature and low-pressure refrigerant. It goes to the outdoor condenser for heat absorption and evaporation, and then flows into the gas-liquid separator for gas-liquid separation. The gaseous refrigerant returns to the compressor for circulation. When cooling, it is reversed through the four-way valve.

In specific implementation, in this embodiment, there are corresponding control logics for the heating condition and the cooling condition, and the heating condition is taken as an example for description. Turn on the heating and detect the outdoor ambient temperature T4. When it is detected that T4≤T4 is preset, T4 is preset as the temperature threshold of the heating condition, indicating that the ambient temperature of the external unit of the air conditioning system is not high, which belongs to non-high temperature heating , the condenser air guide strip needs to be 100% open, and there is no need to control the cooling area of the condenser. When it is detected that T4>T4 is preset, it means that the ambient temperature of the outdoor unit of the air conditioning system is relatively high, which belongs to high-temperature heating. After the compressor is started, it is judged whether the evaporator temperature sensor T2≤T2 preset, and T2 is preset as heating Evaporator protection temperature under working conditions, if T2≤T2 preset, then close the condenser air guide strip by 50%, if T2>T2 preset, further compare T2 with T2 protection, T2 protection is the heating condition The lower evaporator protection temperature. If T2 protection > T2 > T2 preset, the condenser air guide strip is closed at 51-90%. In this embodiment, the condenser air guide strip can be closed by 90%. If T2 protection < T2, the condenser air guide strip When the wind strip is 100% closed, and the duration of T2 protection < T2 exceeds 30 seconds, the compressor is controlled to stop.

Under the cooling condition, the outdoor ambient temperature T4 is detected. When T4 ≥ T4 is detected, T4 is preset as the temperature threshold of the cooling condition, indicating that the ambient temperature of the external unit of the air conditioning system is relatively high, which belongs to non-low temperature refrigeration. The condenser air guide strip needs to be 100% open, and there is no need to control the cooling area of the condenser. When it is detected that T4<T4 preset, it means that the ambient temperature of the external unit of the air conditioning system is low, which belongs to low-temperature refrigeration. After the compressor is started, it is judged whether the evaporator temperature sensor T2 is ≤ T2 preset, and T2 is preset as a cooling condition Under the evaporator protection temperature, if T2≥T2 preset, then close the condenser air guide strip by 50%, if T2<T2 preset, further compare T2 with T2 protection, T2 protection is evaporation under cooling conditions Protector temperature. If T2 protection≤T2<T2 preset, then the condenser air guide strip is closed at 51-90%. In this embodiment, the condenser air guide strip can be closed by 90%. If T2 protection>T2, the condenser air guide strip When the air bar is 100% off, and the duration of T2 protection>T2 exceeds 30 seconds, the compressor is controlled to stop.

In a specific implementation, in this embodiment, the operating conditions of the air conditioner and the outdoor ambient temperature need to be detected, and the outdoor ambient temperature can be collected by an external ambient temperature sensor.

An adjustment module, configured to adjust the opening angle 20 of the air guide strip according to the operating conditions and the outdoor ambient temperature.

It should be noted that the difference from the current control method is that in this embodiment, the condenser of the indoor fan is provided with an air guide strip, while the condenser in the current air conditioner is in a bare state, the air guide strip set in this embodiment The cooling area of the condenser can be changed.

In specific implementation, in this embodiment, the obtained operating conditions of the air conditioner and the outdoor ambient temperature are used as judgment conditions for the control of the air guide strips, and the air guide strips are controlled in a targeted manner according to different operating conditions.

In this embodiment, when the air conditioner is turned on and running, the operating condition and the outdoor ambient temperature of the air conditioner are detected; the opening angle of the air guide strip is adjusted according to the operating condition and the outdoor ambient temperature, Judging whether the air conditioner is in the overload operation state of high-temperature heating or low-temperature cooling according to the conditions and the outdoor ambient temperature, and by controlling the air guide strips on the condenser installed in the outdoor unit, the heat exchange area of the condenser is adjusted to balance the air conditioner. The pressure inside the air conditioner avoids the frequent start and stop of the compressor caused by low-temperature refrigeration or high-temperature heating, so that the compressor can run stably and reliably, ensuring the indoor temperature balance and improving the user experience.

It should be understood that the above is only an example, and does not constitute any limitation to the technical solution of the present invention. In specific applications, those skilled in the art can make settings according to needs, and the present invention is not limited thereto.

It should be noted that the workflow described above is only illustrative and does not limit the protection scope of the present invention. In practical applications, those skilled in the art can select part or all of them to implement according to actual needs. The purpose of the scheme of this embodiment is not limited here.

In addition, for technical details not described in detail in this embodiment, reference may be made to the air conditioner control method provided in any embodiment of the present invention, which will not be repeated here.

Furthermore, it should be noted that in this document, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or system comprising a set of elements includes not only those elements, but also other elements not expressly listed, or elements inherent in such a process, method, article, or system. Without further limitations, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article or system comprising that element.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as a read-only memory (Read Only Memory) , ROM)/RAM, magnetic disk, optical disk), including several instructions to make a terminal device (which can be a mobile phone, computer, server, or network device, etc.) execute the methods described in various embodiments of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (10)

1. An air conditioner control method, characterized in that, the condenser in the outdoor unit of the air conditioner is provided with an air guide strip; The air conditioner control method includes: When the air conditioner is turned on and running, detecting the operating condition and the outdoor ambient temperature of the air conditioner; and The opening angle of the air guide strip is adjusted according to the operating conditions and the outdoor ambient temperature. 2. The air conditioner control method according to claim 1, wherein the adjusting the opening angle of the air guide strip according to the operating conditions and the outdoor ambient temperature comprises: When the operating condition is a heating condition, comparing the outdoor ambient temperature with a heating condition temperature threshold; and When the outdoor ambient temperature is less than or equal to the temperature threshold of the heating working condition, the air guiding strip is adjusted to a maximum opening angle. 3. The air conditioner control method according to claim 2, characterized in that, when the operating condition is a heating condition, after comparing the outdoor ambient temperature with the heating condition temperature threshold, Also includes: Acquiring the temperature of the evaporator when the outdoor ambient temperature is greater than the heating condition temperature threshold; When the evaporator temperature is less than or equal to the preset evaporator temperature under the heating condition, the air guiding strip is adjusted to a first preset opening angle. 4. The air conditioner control method according to claim 3, characterized in that, after the temperature of the evaporator is obtained when the outdoor ambient temperature is greater than the temperature threshold of the heating working condition, further comprising: When the evaporator temperature is greater than the preset evaporator temperature under the heating condition, it is judged whether the evaporator temperature is lower than the first evaporator protection temperature; If yes, adjust the air guide strip to a second preset opening angle, the second preset opening angle is smaller than the first preset opening angle; If not, close the air guide strip, and control the compressor to stop when the evaporator temperature is greater than or equal to the duration corresponding to the first evaporator protection temperature and exceeds a preset time period. 5. The air conditioner control method according to claim 1, wherein the adjusting the opening angle of the air guide strip according to the operating conditions and the outdoor ambient temperature further comprises: When the operating condition is a cooling condition, comparing the outdoor ambient temperature with a cooling condition temperature threshold; and When the outdoor ambient temperature is greater than or equal to the temperature threshold of the cooling working condition, the air guiding strip is adjusted to a maximum opening angle. 6. The air conditioner control method according to claim 5, wherein when the operating condition is a cooling condition, after comparing the outdoor ambient temperature with the cooling condition temperature threshold, further comprising: : Obtaining the temperature of the evaporator when the outdoor ambient temperature is lower than the temperature threshold of the refrigeration working condition; When the temperature of the evaporator is greater than or equal to the preset evaporator temperature under the refrigeration working condition, the air guiding strip is adjusted to a first preset opening angle. 7. The air conditioner control method according to claim 6, characterized in that, after obtaining the temperature of the evaporator when the outdoor ambient temperature is lower than the temperature threshold of the cooling working condition, further comprising: When the temperature of the evaporator is lower than the preset evaporator temperature under the cooling condition, it is judged whether the temperature of the evaporator is greater than or equal to the second evaporator protection temperature; If yes, adjust the air guide strip to a second preset opening angle, the second preset opening angle is smaller than the first preset opening angle; If not, close the air guide strip, and control the compressor to stop when the evaporator temperature is lower than the second evaporator protection temperature for a duration corresponding to a preset duration. 8. An air conditioner control device, characterized in that the condenser in the outdoor unit of the air conditioner is provided with an air guide strip; The air conditioner control device includes: A detection module, configured to detect the operating conditions and outdoor ambient temperature of the air conditioner when the air conditioner is powered on; and An adjustment module, configured to adjust the opening angle of the air guide strip according to the operating conditions and the outdoor ambient temperature. 9. An air conditioner, characterized in that the air conditioner comprises: a memory, a processor and an air conditioner control program stored on the memory and run on the processor, the air conditioner control program is configured as Realize the air conditioner control method as described in any one of claims 1 to 7. 10. A storage medium, characterized in that an air conditioner control program is stored on the storage medium, and when the air conditioner control program is executed by a processor, the air conditioner control according to any one of claims 1 to 7 is realized method.

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