CN115789890A - Air conditioner control method and device and air conditioner - Google Patents

Abstract

The invention provides an air conditioner control method and device and an air conditioner, and relates to the technical field of air conditioners. In the air conditioner control method, one or more of target operation frequency, frequency-increasing rate, operation frequency and outer fan rotating speed are determined according to the difference value of a first outer ring temperature value in a first preset time after the air conditioner is started and a second outer ring temperature value after the air conditioner operates for a second preset time, the current operation frequency and the current target frequency. And controlling the air conditioner to operate according to the determined target operation frequency, the determined frequency increasing rate, the determined operation frequency and the determined rotating speed of the external fan. The air conditioner control device and the air conditioner provided by the invention can execute the air conditioner control method. The air conditioner control method, the air conditioner control device and the air conditioner can solve the problem that the reliability of the air conditioner is reduced due to poor installation environment in the prior art.

Description

Air conditioner control method, device and air conditioner

technical field

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

Background technique

With the development of society, the use of air conditioners is becoming more and more extensive, and the usage scenarios are becoming more and more complex. In some relatively harsh scenarios, the installation environment of the outdoor unit is narrow, for example, it is close to the wall; or the air outlet is blocked and the return air is not smooth, for example, the air outlet is blocked, there are building grilles, etc.; Finally, because the unit itself transfers heat from the inside, poor heat dissipation, poor air flow, and less heat exchange with the environment, the ambient temperature around the air conditioner's external unit will rise rapidly, forming a heat island. In such an installation environment, the heat dissipation is poor and the load is high. In order to improve the effect, it is necessary to maintain a high operating frequency, which may easily trigger reliability problems.

Although there is currently some control, the outer ring interval will be subdivided, and different target frequencies will be set according to the outer ring detected by the unit in real time. For example, the higher the outer ring, the lower the maximum operating frequency, so as to ensure reliability. However, it still has the problem of adjustment lag, that is, due to poor heat dissipation in harsh installation scenarios and the unit itself transfers heat from the inside, the temperature of the outer ring rises rapidly, and there is a lag between the action of temperature detection and the action based on temperature detection to the adjustment action , easy to trigger protection or malfunction.

Contents of the invention

The problem solved by the invention is how to improve the problem in the prior art that the reliability of the air conditioner is reduced due to poor installation environment.

In order to solve the above problems, the present invention provides an air conditioner control method comprising:

receiving a first outer ring temperature value, said first outer ring temperature value representing the average value of the external ambient temperature within a first preset time since the air conditioner was started;

Receive a second outer ring temperature value in real time after the second preset time from the start of the air conditioner, and the second outer ring temperature value represents the temperature value of the external environment;

Obtaining the current operating frequency and the current target frequency of the air conditioner in real time;

According to the difference between the first outer ring temperature value and the second outer ring temperature value, the current operating frequency and the current target frequency, determine the target operating frequency, frequency increase rate, operating frequency, and external fan speed one or more of;

The operation of the air conditioner is controlled according to the determined target operating frequency, the frequency increase rate, the operating frequency and the rotational speed of the external fan.

Compared with the prior art, the beneficial effects of the air-conditioning control method provided by the present invention include:

The first outer ring temperature value represents the average temperature value of the external environment within the first preset time when the air conditioner is turned on, and the second outer ring temperature value represents the external ambient temperature value after the second preset time when the air conditioner is turned on, which can be based on The difference between the first outer ring temperature value and the second outer ring temperature value is used to determine the degree of temperature increase of the external environment where the air conditioner is located, and then judge whether the heat dissipation of the air conditioner’s external unit is determined by the degree of temperature increase of the external environment. Good, and then in the case of obtaining the heat dissipation of the environment where the air conditioner's external unit is located, the target operating frequency, operating frequency, frequency increase rate and external fan speed of the air conditioner can be determined based on the heat dissipation of the air conditioner's external unit, so as to Prevent the target operating frequency of the air conditioner from being adjusted too quickly with the external temperature, so that the operating frequency of the air conditioner cannot be adjusted in time, so as to avoid the problem that the air conditioner is easy to trigger protection or malfunction due to the excessive temperature rise of the external environment. In order to improve the problem in the prior art that the poor installation environment causes the reliability of the air conditioner to decrease.

Optionally, if the difference between the first outer ring temperature value and the second outer ring temperature value is greater than or equal to the first preset temperature value and less than the second preset temperature value;

re-determining the target operating frequency and the operating frequency according to the current operating frequency and the current target frequency;

maintaining the current frequency increase rate of the air conditioner as the frequency increase rate;

Maintaining the current rotational speed of the external fan of the air conditioner as the rotational speed of the external fan.

Optionally, if the difference between the first outer ring temperature value and the second outer ring temperature value is greater than or equal to a second preset temperature value and less than a third preset temperature value;

re-determining the target operating frequency and the operating frequency according to the current operating frequency and the current target frequency;

The frequency increase rate is defined as the product of the current frequency increase rate of the air conditioner and a second preset value; wherein, the second preset value is less than 1;

The maximum allowable rotational speed of the external fan of the air conditioner is the rotational speed of the external fan.

Optionally, if the difference between the first outer ring temperature value and the second outer ring temperature value is greater than or equal to a third preset temperature value;

taking the current operating frequency as the target operating frequency;

The maximum rotational speed of the external fan of the air conditioner is taken as the rotational speed of the external fan.

Optionally, if the difference between the first outer ring temperature value and the second outer ring temperature value is less than a first preset temperature value;

maintaining the current operating frequency as the operating frequency;

maintaining the current target frequency as the target operating frequency;

maintaining the current frequency increase rate of the air conditioner as the frequency increase rate;

Maintaining the current rotational speed of the external fan of the air conditioner as the rotational speed of the external fan.

An air-conditioning control device, the air-conditioning control device comprising:

The first receiving module is configured to receive a first outer ring temperature value, the first outer ring temperature value representing the average value of the external ambient temperature within a first preset time since the air conditioner is started;

The second receiving module is configured to receive a second outer ring temperature value in real time after the second preset time since the air conditioner is started, and the second outer ring temperature value represents the temperature value of the external environment;

An acquisition module, configured to acquire the current operating frequency and the current target frequency of the air conditioner in real time;

A first control module, configured to determine a target operating frequency, a frequency up rate, One or more of operating frequency and external fan speed;

The second control module is configured to control the operation of the air conditioner based on the determined target operating frequency, the frequency increase rate, the operating frequency and the external fan speed.

An air conditioner, including a controller, the controller is used to implement the above air conditioner control method.

Both the air-conditioning control device and the air conditioner provided by the present invention can execute the above-mentioned air-conditioning control method, and the beneficial effects of the air-conditioning control device and the air conditioner relative to the prior art are the same as those of the above-mentioned air-conditioning control method relative to the prior art , which will not be repeated here.

Description of drawings

FIG. 1 is a flowchart of an air-conditioning control method provided in an embodiment of the present application;

Fig. 2 is a flow chart of step S4 in the air conditioning control method provided in the embodiment of the present application;

FIG. 3 is a flowchart of step S411 in the air conditioning control method provided in the embodiment of the present application;

FIG. 4 is another flow chart of step S411 in the air conditioning control method provided in the embodiment of the present application;

Fig. 5 is a partial flow chart after step S15 in the air conditioning control method provided in the embodiment of the present application;

FIG. 6 is another flow chart of step S4 in the air conditioning control method provided in the embodiment of the present application;

FIG. 7 is a flowchart of step S421 in the air conditioning control method provided in the embodiment of the present application;

FIG. 8 is another flow chart of step S421 in the air conditioning control method provided in the embodiment of the present application;

Fig. 9 is a partial flow chart after step S25 in the air conditioning control method provided in the embodiment of the present application;

Fig. 10 is another flow chart of step S4 in the air conditioning control method provided in the embodiment of the present application;

Fig. 11 is another flow chart of step S4 in the air conditioning control method provided in the embodiment of the present application;

Fig. 12 is a schematic diagram of functional modules of an air conditioner control device provided in an embodiment of the present application.

Explanation of reference signs:

10-first receiving module; 20-second receiving module; 30-obtaining module; 40-first control module; 50-second control module.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

An air conditioner is provided in an embodiment of the present application. The air conditioner has an air conditioner inner unit and an air conditioner outer unit, the air conditioner inner unit is used for installation in a designated area, and the air conditioner outer unit is used for installation outside the designated area. The inner unit of the air conditioner is connected with the outer unit of the air conditioner to form a refrigeration cycle system. When the external unit of the air conditioner is running, the refrigerant can be circulated in the refrigeration cycle system, so as to provide air conditioning to the designated area through the internal unit of the air conditioner. Optionally, the air conditioning function includes but is not limited to temperature regulation, humidity regulation, fresh air or sterilization and dust removal.

When the air conditioner is running in cooling mode or dehumidification mode, the external unit of the air conditioner is in a high temperature situation, that is to say, the external unit of the air conditioner needs to exchange heat with the external environment to ensure that the internal unit of the air conditioner can provide effective cooling to the designated area effect or dehumidification effect.

In the prior art, some air conditioner external units are installed in a scene where the heat dissipation environment is relatively harsh. For example, the outdoor unit of the air conditioner is close to the wall, resulting in a narrow installation environment for the outdoor unit of the air conditioner; another example, the air outlet of the outdoor unit of the air conditioner is blocked or installed with building grilles, resulting in blocked air outlet from the outdoor unit of the air conditioner and poor return air wait. In the above cases, when the air conditioner is running in cooling mode or dehumidification mode, the external unit of the air conditioner itself transfers heat from the internal side, and the harsh environment leads to poor cooling effect and poor air flow of the external unit of the air conditioner, which makes the external unit of the air conditioner The small environment where there is less heat exchange with the outside environment, resulting in a faster local temperature rise in the environment where the air conditioner external unit is located, thus forming a heat island around the air conditioner external unit.

In the case of a heat island formed by the external unit of the air conditioner, due to the poor heat dissipation in the harsh installation scenario and the unit itself transfers heat from the inside, the temperature of the outer ring rises rapidly, and there is a lag between the execution of the temperature detection action and the execution of the adjustment action, which is easy to trigger the protection or malfunction. For example, when the temperature of the outer ring is 35°C and 40°C, the maximum operating frequency of the refrigeration is 90HZ and 80HZ respectively. When the current outer ring temperature is 35°C, the operating frequency is 90HZ; when the outer ring rises rapidly to 40°C, the load of the unit increases rapidly, and at this time the frequency is still in the process of reducing frequency from 90HZ to 80HZ, and the unit has no time to reduce frequency has triggered the protection. As a result, the reliability of the air conditioner is reduced.

In order to improve the above-mentioned technical problems, in other words, in order to improve the problem in the prior art that the reliability of the air conditioner is reduced due to the poor installation environment of the external unit of the air conditioner, the application also provides an air conditioner control method to improve the reliability of the air conditioner sex.

Wherein, the air conditioner includes a controller, and the controller can execute the air conditioner control method, so as to improve the problem in the prior art that the reliability of the air conditioner is lowered due to the poor installation environment of the external unit of the air conditioner, so as to achieve the goal of improving the reliability of the air conditioner. Purpose. Optionally, the controller may be an integrated circuit chip with signal processing capabilities. Above-mentioned controller can be general-purpose processor, comprises central processing unit (Central Processing Unit, CPU), can also be single-chip microcomputer, microcontrol unit (Microcontroller Unit, MCU), complex programmable logic device (Complex ProgrammableLogic Device, CPLD), Field Programmable Gate Array (Field-Programmable Gate Array, FPGA), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), embedded ARM and other chips, the controller can implement or execute the methods disclosed in the embodiments of the present invention, Steps and logic block diagram.

In a feasible implementation manner, the air conditioner may further include a memory for storing program instructions that can be executed by the controller. For example, the embodiment of the present application provides an air conditioner control device. The apparatus includes at least one device which may be stored in memory in the form of software or firmware. The memory can be an independent external memory, including but not limited to Random Access Memory (Random Access Memory, RAM), Read Only Memory (Read Only Memory, ROM), Programmable Read-Only Memory (Programmable Read-Only Memory, PROM), which can Erasable Programmable Read-Only Memory (EPROM), Electric Erasable Programmable Read-Only Memory (EEPROM). The memory can also be integrated with the controller, for example, the memory and the controller can be integrated in the same chip.

In addition, the air conditioner may further include a temperature detection device installed on the outer unit of the air conditioner to detect the temperature of the environment where the outer unit of the air conditioner is located, that is, the temperature value of the outer ring. Wherein, the temperature detection device may be a temperature sensor. The temperature detection device is electrically connected with the controller to send the detected outer ring temperature value to the controller, and the controller can receive the outer ring temperature value sent by the temperature detection device.

In this embodiment, please refer to FIG. 1, the air conditioner control method includes:

S1. Receive a first outer ring temperature value.

Wherein, the first outer ring temperature value represents an average value of the outer ring temperature within a first preset time period since the air conditioner is started. That is to say, when the air conditioner is started, the temperature detection device starts to detect the temperature in real time, and sends a plurality of outer ring temperature values detected within the first preset time to the controller, and the controller can The first outer ring temperature value can be obtained by obtaining the average value of the multiple outer ring temperature values.

Since the outdoor unit of the air conditioner generates more heat during operation, the temperature of the external environment where the outer unit of the air conditioner is located changes. Therefore, by detecting the first outer ring temperature value, it can be judged based on the first outer ring temperature value when the air conditioner outdoor unit hardly changes the temperature of the external environment, the temperature of the environment where the air conditioner outdoor unit is located.

Optionally, the value of the first preset time may be 5s-10s, in other words, the value of the first preset time may be 5s, 6s, 7s, 8s, 9s or 10s and so on. Setting the value of the first preset time to 5s-10s can prevent the temperature of the external environment from being changed due to the long running time of the external unit of the air conditioner, resulting in inaccurate detection of the first outer ring temperature value; at the same time, it can also prevent An error occurs when the first preset time is too short.

In addition, it is worth noting that before step S1, it is also necessary to determine whether the time between the last shutdown of the air conditioner and the current startup of the air conditioner exceeds a specified length of time. Wherein, if the difference between the time when the air conditioner is turned on this time and the time when it was turned off last time is relatively short, the heat in the external environment where the air conditioner is located has not had time to dissipate, and the detected first outer ring temperature value is affected by the air conditioner. Effect of heat generated by one run. Optionally, the value of the specified time length may be 30min-60min.

It is worth noting that if the air conditioner judges that the time between the last shutdown and the current startup is less than a specified period of time, the air conditioner control method can be executed based on the first outer ring temperature value during the last operation of the air conditioner. That is to say, the temperature value of the first outer ring at this time does not need to be detected by the temperature detection device, but can be obtained directly by the controller.

S2. After the second preset time from the start of the air conditioner, receive the second outer ring temperature value in real time.

Wherein, the second outer ring temperature value represents the temperature of the external environment where the air conditioner outdoor unit is located. That is to say, the external temperature is detected in real time by the temperature detection device, and the temperature is sent to the controller in real time.

Optionally, the value of the second preset time may be 10s-30s, in other words, the value of the second preset time may be 10s, 11s, 12s, 13s, 14s, 15s, 16s, 17s, 18s, 19s, 20s, 21s, 22s, 23s, 24s, 25s, 26s, 27s, 28s, 29s or 30s etc. Wherein, preferably, the second preset time is 10s. In the case where the first preset time value is 10s, it means that when the controller obtains the first outer ring temperature value, it starts to acquire the second outer ring temperature value immediately.

S3. Obtain the current operating frequency and the current target frequency of the air conditioner in real time.

Wherein, the controller can directly acquire the running state of the air conditioner, that is, can acquire the current operating frequency and the current target frequency of the air conditioner. It should be noted that the current target frequency refers to the highest allowed operating frequency of the air conditioner in the current situation; in other words, when the current operating frequency of the air conditioner reaches the current target frequency, the air conditioner will not continue to increase frequency.

S4. Determine one or more of target frequency, frequency increase rate, operating frequency, and external fan speed according to the difference between the first outer ring temperature value and the second outer ring temperature value, the current operating frequency, and the current target frequency.

It is worth noting that the difference between the first outer ring temperature value and the second outer ring temperature value can be used to judge the degree of temperature increase of the external environment where the air conditioner is located, and then judge the degree of temperature increase of the external environment. Whether the heat dissipation of the external unit of the air conditioner is good, that is, if the difference is large, it means that the heat dissipation effect of the external environment is poor; on the contrary, if the difference is small, it means that the heat dissipation effect of the external environment is good. When the heat dissipation of the environment where the external unit of the air conditioner is located, one or more of the air conditioner’s target operating frequency, operating frequency, frequency increase rate, and external fan speed can be determined based on the heat dissipation of the external unit of the air conditioner. One, to prevent the target operating frequency of the air conditioner from being adjusted too quickly with the external temperature, so that the operating frequency of the air conditioner cannot be adjusted in time, so as to avoid the problem that the air conditioner is prone to trigger protection or malfunction due to the excessive temperature rise of the external environment. In order to improve the problem in the prior art that the poor installation environment causes the reliability of the air conditioner to decrease.

Optionally, in this embodiment, the way to judge the heat dissipation of the external environment according to the difference between the first outer ring temperature value and the second outer ring temperature value is to judge the heat dissipation of the external environment according to the first outer ring temperature value and the second outer ring temperature value. The range of the difference of the ring temperature value can be used to judge whether the heat dissipation of the external environment is good.

In an embodiment of the present application, if the difference between the first outer ring temperature value and the second outer ring temperature value is greater than or equal to the first preset temperature value and smaller than the second preset temperature value. Optionally, the value of the first preset temperature value is 1°C-3°C, that is to say, the value of the first preset temperature value can be 1°C, 2°C or 3°C, etc.; the second preset temperature The value may be 3°C-5°C; that is, the second preset temperature value may be 3°C, 4°C or 5°C. It should be noted that the second preset temperature value should be greater than the first preset temperature value.

In the case where the difference between the first outer ring temperature value and the second outer ring temperature value is greater than or equal to the first preset temperature value and smaller than the second preset temperature value, it means that the temperature of the external environment is rising but not Not bad, based on this, please refer to Figure 2, step S4 may include:

S411. Re-determine the target operating frequency and the operating frequency according to the current operating frequency and the current target frequency.

S412. Maintain the current frequency increase rate of the air conditioner as the frequency increase rate.

S413. Maintain the current rotation speed of the external fan of the air conditioner as the rotation speed of the external fan.

Wherein, due to the temperature rise of the external environment, at this time, it will affect the target frequency of the outdoor unit of the air conditioner, so that the above-mentioned problems in the prior art may occur. Based on this, in order to prevent the reliability of the air conditioner from being affected, based on The current operating frequency and the current target frequency of the air conditioner are used to re-determine the operating frequency and target operating frequency of the air conditioner, thereby preventing the protection from being triggered when the target frequency of the air conditioner decreases but the air conditioner has not yet decreased in time. Moreover, if the current operating frequency is close to the current target frequency, the heat dissipation of the external unit will have less impact on the ambient temperature after the subsequent frequency increase; otherwise, the heat dissipation of the external unit will have a greater impact when the frequency increases, and the target frequency needs to be reduced. Therefore, adjusting the operating frequency and the target operating frequency of the air conditioner according to the current operating frequency and the current target frequency can prevent the external environment from continuously deteriorating.

In addition, although the heat dissipation of the external environment will affect the operation reliability of the air conditioner, its impact on the operation of the air conditioner is relatively small. constant.

It should be noted that step S411 , step S412 and step S413 do not refer to their execution sequence, and the above three steps can be executed simultaneously or in batches.

Optionally, referring to FIG. 3, the manner of determining the target operating frequency in step S411 is as follows:

S11. Determine whether the current operating frequency is less than the product of the current target frequency and a first preset value.

Wherein, the first preset value is less than 1. Optionally, the value of the first preset value may be 0.6-0.8, that is to say, the value of the first preset value may be 0.6, 0.61, 0.62, 0.63, 0.64, 0.65, 0.66, 0.67, 0.68, 0.69, 0.7, 0.71, 0.72, 0.73, 0.74, 0.75, 0.76, 0.77, 0.78, 0.79 or 0.8, etc., wherein the first preset value is preferably 0.7. That is to say, whether the current operating frequency is close to the current target frequency can be judged by the product of the current operating frequency, the current target frequency, and the first preset value. If the current operating frequency is greater than or equal to the above product, it means that the current operating frequency is close to the current target frequency; if the current operating frequency is less than the above product, it means that the current operating frequency is far from the current target frequency.

S12. If yes, use the product of the current target frequency and the first preset value as the target operating frequency.

At this time, the current target operating frequency differs greatly from the current target frequency. Based on this, if the current operating frequency continues to increase, the temperature of the external environment will increase, which will lead to the deterioration of the external heat dissipation. Based on this, the above product can be used As the target operating frequency, prevent the operating frequency of the air conditioner from increasing too much to prevent the deterioration of the external environment.

S13. If not, maintain the current target frequency as the target operating frequency.

At this time, the current target operating frequency is close to the current target frequency, therefore, the operating frequency of the air conditioner will not increase too much, thus, the current target frequency of the air conditioner does not need to be adjusted.

In addition, referring to FIG. 4, in step S411, the way to re-determine the operating frequency of the air conditioner is as follows:

S14. Form a first frequency operating platform according to the current target frequency, the first preset value, and the current operating frequency.

S15. Obtain the running frequency through the first frequency running platform.

It should be noted that while adjusting the target operating frequency of the air conditioner, the operating frequency of the air conditioner is re-determined through the first frequency operating platform to determine the operating frequency of the air conditioner in a stable state, thereby preventing the air conditioner from An increase in the operating frequency of the motor leads to the triggering of the protection.

Optionally, in the first frequency operating platform, the operating frequency is equal to half of the sum of the product of the current target frequency and the first preset value and the current operating frequency. In other words, the operating frequency can be determined as a value between the current operating frequency and the first preset value and the current target frequency, that is, the re-determined operating frequency is greater than the current operating frequency and less than the first preset value and the current target frequency The product of frequencies. At this time, relative to the current target frequency, the operating frequency is increased, so that the air conditioner can meet the comfort required by the user; if the operating frequency is less than the product of the first preset value and the current target frequency, it means that the re-determined operating frequency will not Exceeding the re-determined target operating frequency will not cause the air conditioner to trigger protection. Therefore, not only can it be ensured that the comfort of the user is not affected, but at the same time, the protection of the air conditioner will not be triggered, and the stability of the operation of the air conditioner can be ensured.

Certainly, referring to FIG. 5 , in this embodiment, after the operating frequency and the target operating frequency are re-determined, the air conditioner controls the operation of the air conditioner at the re-determined operating frequency. In addition, the air conditioning control method further includes:

S16. Determine whether the time for controlling the air conditioner to run at the operating frequency reaches a third preset time.

S17. If yes, control the air conditioner to increase the frequency at the determined frequency increase rate and the re-determined target operating frequency.

In other words, after the air conditioner reaches the third preset time at the re-determined operating frequency, the air conditioner reaches a stable state, thus, the above-mentioned first frequency operating platform can be exited, so that the air conditioner returns to the normal up-frequency state to continue To run, that is, to control the air conditioner to run at the frequency increase rate determined in step S412 and the target operating frequency re-determined in step S411.

Optionally, the value of the third preset time may be 120s-300s, in other words, the value of the third preset time may be 120s, 125s, 130s, 135s, 140s, 145s, 150s, 155s, 160s, 165s, 170s, 175s, 180s, 185s, 190s, 195s, 200s, 205s, 210s, 215s, 220s, 225s, 230s, 235s, 240s, 245s, 250s, 255s, 260s, 265s, 270s, 275s, 280s, 285s, 290s, 295s or 300s etc. Wherein, the third preset time is preferably 180s.

In another embodiment of the present application, if the difference between the first outer ring temperature value and the second outer ring temperature value is greater than or equal to the second preset temperature value and smaller than the third preset temperature value. At this time, it means that the external environment has risen more, and it is necessary to increase the heat exchange capacity of the external unit of the air conditioner to prevent the operation of the air conditioner from being affected and the user's comfort from being affected. Optionally, the value of the third preset temperature value may be 6°C-9°C, in other words, the value of the third preset temperature value may be 6°C, 7°C, 8°C or 9°C, etc.; wherein, the first The values of the three preset temperature values are preferably 8°C.

At this point, referring to Fig. 6, step S4 includes:

S421. Re-determine the target operating frequency and the operating frequency according to the current operating frequency and the current target frequency.

S422. Use the product of the current frequency increase rate of the air conditioner and the second preset value as the frequency increase rate.

Wherein, the second preset value is less than 1. Optionally, the value of the second preset value may be 0.4-0.6, that is, the value of the second preset value may be 0.4, 0.5 or 0.6, and the second preset value is preferably 0.5. That is to say, the frequency increase rate of the air conditioner needs to be reduced.

S423. Use the maximum allowable rotational speed of the external fan of the air conditioner as the rotational speed of the external fan.

That is to say, when the difference between the first outer ring temperature value and the second outer ring temperature value is greater than or equal to the second preset temperature value and smaller than the third preset temperature value, it means that the temperature rise of the external environment is relatively high , it is necessary to reduce the frequency increase rate to avoid a large amount of heat in a short period of time; at the same time, the speed of the external fan is increased to increase the blowing distance and enhance the heat exchange capacity between the external machine and the environment.

It is worth noting that, referring to FIG. 7, in step S421, the way to re-determine the target operating frequency is as follows:

S21. Determine whether the current operating frequency is less than the product of the third preset value and the current target frequency.

Wherein, the third preset value is less than 1. Optionally, the value of the third preset value may be 0.8-0.9, in other words, the value of the third preset value may be 0.8, 0.81, 0.82, 0.83, 0.84, 0.85, 0.86, 0.87, 0.88, 0.89 or 0.9, etc.; wherein, the third preset value is preferably 0.9. By judging whether the current operating frequency is less than the product of the third preset value and the current target frequency, it can be determined whether the current operating frequency is close to the current target frequency.

S22. If yes, use the product of the current target frequency and the third preset value as the target operating frequency.

S23. If not, maintain the current target frequency as the target operating frequency.

In other words, when the current operating frequency is greater than or equal to the product of the third preset value and the current target frequency, it means that the current operating frequency is close to the current target frequency. At this time, even if the air conditioner continues to increase the frequency, it will not cause the air conditioner to run If the frequency is increased too much, the heat generated by the air conditioner will be less affected. Therefore, the current target frequency of the air conditioner can be maintained as the target operating frequency. However, if the current operating frequency is less than the product of the current target frequency and the third preset value, it means that the current operating frequency is far from the current target frequency. Excessive increase in the operating frequency results in excessive heat generation, resulting in continuous deterioration of the external environment; therefore, it is necessary to re-determine the target operating frequency, and then use the product of the third preset value and the current target frequency as the target operating frequency.

In addition, referring to FIG. 8, in step S421, the way to re-determine the operating frequency is as follows:

S24. Form a second frequency operating platform according to the current target frequency, the third preset value, and the current operating frequency.

S25. Obtain the operating frequency through the second frequency operating platform.

Optionally, in the second frequency operating platform, the operating frequency is equal to half of the sum of the product of the current target frequency and the third preset value and the current operating frequency. In other words, the operating frequency can be determined as a value between the current operating frequency and the third preset value and the current target frequency, that is, the re-determined operating frequency is greater than the current operating frequency and less than the third preset value and the current target frequency The product of frequencies. At this time, relative to the current target frequency, the operating frequency is increased, so that the air conditioner can meet the comfort required by the user; if the operating frequency is less than the product of the third preset value and the current target frequency, it means that the re-determined operating frequency will not Exceeding the re-determined target operating frequency will not cause the air conditioner to trigger protection. Therefore, not only can it be ensured that the comfort of the user is not affected, but at the same time, the protection of the air conditioner will not be triggered, and the stability of the operation of the air conditioner can be ensured.

Of course, in this embodiment, after the operating frequency and the target operating frequency are re-determined, the air conditioner controls the operation of the air conditioner at the re-determined operating frequency. And, please refer to Figure 9, the air conditioner control method also includes:

S26. Determine whether the time for controlling the air conditioner to run at the operating frequency reaches a fourth preset time.

S27. If yes, control the air conditioner to operate at an increased frequency at the re-determined frequency increase rate and target operating frequency.

In other words, after the air conditioner reaches the fourth preset time at the re-determined operating frequency, the air conditioner reaches a stable state, thus, the above-mentioned second frequency operating platform can be exited, so that the air conditioner returns to the normal up-frequency state to continue To run, that is, to control the operation of the air conditioner at the frequency up rate re-determined in step S422 and the target operating frequency re-determined in step S421.

Optionally, the value of the fourth preset time may be 120s-600s, in other words, the value of the fourth preset time may be 120s, 130s, 140s, 150s, 160s, 170s, 180s, 190s, 200s, 210s, 220s . , 480s, 490s, 500s, 510s, 520s, 530s, 540s, 550s, 560s, 570s, 580s, 590s or 600s etc. Wherein, the fourth preset time is preferably 540s.

In some other embodiments of the present application, if the difference between the first outer ring temperature value and the second outer ring temperature value is greater than or equal to the third preset time, it indicates that the external environment is relatively harsh and a local heat island is formed. Based on this, in order to avoid the risk of downtime, please refer to Figure 10, step S4 includes:

S431. Use the current operating frequency as the target operating frequency.

S432. Use the maximum rotation speed of the external fan of the air conditioner as the rotation speed of the external fan.

Set the current operating frequency as the target operating frequency, that is, adjust the frequency increase rate to 0, prohibit the air conditioner from continuing to increase frequency, and continue to operate with the air conditioner maintaining the current operating frequency. Of course, at this time, it can also be regarded as maintaining the current operating frequency as the operating frequency of the air conditioner. In addition, the speed of the external fan is adjusted to the maximum at the same time to enhance the local heat exchange capacity and avoid the local temperature field from being too high. Based on this, it can not only prevent the air conditioner from shutting down, but also ensure that the comfort of the user is not greatly affected.

In some other embodiments of the present application, if the difference between the first outer ring temperature value and the second outer ring temperature value is less than the first preset temperature value, it means that the installation environment of the air conditioner outdoor unit is relatively conventional and has a good The heat dissipation situation, based on this, please refer to Figure 11, step S4 may include:

S441. Maintain the current operating frequency as the operating frequency;

S442. Maintain the current target frequency as the target operating frequency;

S443. Maintain the current frequency increase rate of the air conditioner as the frequency increase rate;

S444. Maintain the current rotational speed of the external fan of the air conditioner as the rotational speed of the external fan.

That is to say, maintaining the current operating state of the air conditioner can be regarded as not adjusting the operating parameters of the air conditioner.

After determining the operating frequency, the target operating frequency, the frequency increase rate, and the rotational speed of the external fan based on step S4.

Please continue to refer to Figure 1, the air conditioning control method also includes:

S5. Control the operation of the air conditioner according to the determined target operating frequency, frequency increase rate, operating frequency, and external fan speed.

Based on this, it is possible to prevent the air conditioner from easily triggering protection while ensuring that the air conditioner can meet the user's comfort requirements, thereby improving the stability of the operation of the air conditioner.

As mentioned above, the air conditioner can execute the above air conditioning control method to judge the temperature rise of the external environment where the air conditioner is located according to the difference between the first outer ring temperature value and the second outer ring temperature value, and then through the external The temperature rise of the environment can be used to judge whether the heat dissipation of the external unit of the air conditioner is good, and then after obtaining the heat dissipation of the environment where the external unit of the air conditioner is located, the heat dissipation of the air conditioner can be determined based on the heat dissipation of the external unit of the air conditioner. The target operating frequency, operating frequency, frequency increase rate and the speed of the external fan are used to prevent the target operating frequency of the air conditioner from being adjusted too quickly with the external temperature and the operating frequency of the air conditioner cannot be adjusted in time, thereby preventing the air conditioner from It is easy to trigger the problem of protection or failure. In order to improve the problem in the prior art that the poor installation environment causes the reliability of the air conditioner to decrease.

In order to execute possible steps of the air-conditioning control method provided in the foregoing embodiments, please refer to FIG. 12 , which shows a schematic diagram of functional modules of an air-conditioning control device provided in an embodiment of the present application. The air conditioner control device is applied to an air conditioner, and the air conditioner control device provided in the embodiment of the present application is used to implement the above air conditioner control method. It should be noted that the basic principles and technical effects of the air-conditioning control device provided in this embodiment are basically the same as those of the above-mentioned embodiments. corresponding content.

The air conditioner control device includes a first receiving module 10 , a second receiving module 20 , an acquisition module 30 , a first control module 40 and a second control module 50 .

The first receiving module 10 is used for receiving a first outer ring temperature value, which represents an average value of the outer ambient temperature within a first preset time period since the air conditioner is started.

Optionally, the first receiving module 10 is configured to execute step S1 in each of the above figures, so as to achieve corresponding technical effects.

The second receiving module 20 is used to receive the second outer ring temperature value in real time after the second preset time from the start of the air conditioner, and the second outer ring temperature value represents the temperature value of the external environment.

Optionally, the second receiving module 20 is configured to execute step S2 in each of the above figures, so as to achieve corresponding technical effects.

The acquisition module 30 is used to acquire the current operating frequency and the current target frequency of the air conditioner in real time.

Optionally, the acquisition module 30 is configured to execute step S3 in each of the above figures, so as to achieve corresponding technical effects.

The first control module 40 is used to determine the target operating frequency, frequency increase rate, operating frequency and external fan speed according to the difference between the first outer ring temperature value and the second outer ring temperature value, the current operating frequency and the current target frequency. one or more of .

Optionally, the first control module 40 is configured to execute step S4 and its sub-steps in each of the above figures, so as to achieve corresponding technical effects.

The second control module 50 is used to control the operation of the air conditioner according to the determined target operating frequency, frequency increase rate, operating frequency and external fan speed.

Optionally, the second control module 50 is configured to execute step S5 in each of the above figures to achieve corresponding technical effects.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may also be implemented in other ways. The device embodiments described above are only illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the architecture, functions and possible implementations of devices, methods and computer program products according to multiple embodiments of the present invention. operate. In this regard, each block in a flowchart or block diagram may represent a module, program segment, or part of code that includes one or more Executable instructions. It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. It should also be noted that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by a dedicated hardware-based system that performs the specified function or action , or may be implemented by a combination of dedicated hardware and computer instructions.

In addition, each functional module in each embodiment of the present invention can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

If the functions are realized in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes. .

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so the protection scope of the present invention should be based on the scope defined in the claims.

Claims (11)

1. An air-conditioning control method, characterized in that, comprising: receiving a first outer ring temperature value, said first outer ring temperature value representing the average value of the external ambient temperature within a first preset time since the air conditioner was started; Receive a second outer ring temperature value in real time after the second preset time from the start of the air conditioner, and the second outer ring temperature value represents the temperature value of the external environment; Obtaining the current operating frequency and the current target frequency of the air conditioner in real time; According to the difference between the first outer ring temperature value and the second outer ring temperature value, the current operating frequency and the current target frequency, determine the target operating frequency, frequency increase rate, operating frequency, and external fan speed one or more of; The operation of the air conditioner is controlled according to the determined target operating frequency, the frequency increase rate, the operating frequency and the rotational speed of the external fan. 2. The air conditioning control method according to claim 1, wherein if the difference between the first outer ring temperature value and the second outer ring temperature value is greater than or equal to the first preset temperature value and less than the first preset temperature value Two preset temperature values; re-determining the target operating frequency and the operating frequency according to the current operating frequency and the current target frequency; maintaining the current frequency increase rate of the air conditioner as the frequency increase rate; Maintaining the current rotational speed of the external fan of the air conditioner as the rotational speed of the external fan. 3. The air conditioning control method according to claim 2, wherein the step of re-determining the target operating frequency according to the current operating frequency and the current target frequency comprises: judging whether the current operating frequency is less than the product of the current target frequency and a first preset value; wherein the first preset value is less than 1; If yes, use the product of the current target frequency and the first preset value as the target operating frequency; if not, maintain the current target frequency as the target operating frequency. 4. The air conditioning control method according to claim 3, wherein the step of re-determining the operating frequency according to the current operating frequency and the current target frequency comprises: forming a first frequency operating platform according to the current target frequency, the first preset value, and the current operating frequency; The operating frequency is obtained through the first frequency operating platform, wherein, on the first frequency operating platform, the operating frequency is equal to the product of the current target frequency and the first preset value and the current half of the sum of operating frequencies; After re-determining the operating frequency and controlling the operation of the air conditioner at the operating frequency, the air conditioning control method further includes: judging whether the time for controlling the air conditioner to run at the operating frequency reaches a third preset time; If yes, then control the air conditioner to operate at an increased frequency at the determined frequency increase rate and the re-determined target operating frequency. 5. The air conditioning control method according to claim 1, wherein if the difference between the first outer ring temperature value and the second outer ring temperature value is greater than or equal to the second preset temperature value and less than the second preset temperature value Three preset temperature values; re-determining the target operating frequency and the operating frequency according to the current operating frequency and the current target frequency; The frequency increase rate is defined as the product of the current frequency increase rate of the air conditioner and a second preset value; wherein, the second preset value is less than 1; The maximum allowable rotational speed of the external fan of the air conditioner is the rotational speed of the external fan. 6. The air conditioning control method according to claim 5, wherein the step of re-determining the target operating frequency according to the current operating frequency and the current target frequency comprises: judging whether the current operating frequency is less than the product of a third preset value and the current target frequency; wherein the third preset value is less than 1; If yes, then use the product of the current target frequency and the third preset value as the target operating frequency; if not, maintain the current target frequency as the target operating frequency. 7. The air conditioning control method according to claim 6, wherein the step of re-determining the operating frequency according to the current operating frequency and the current target frequency comprises: forming a second frequency operating platform according to the current target frequency, the third preset value, and the current operating frequency; The operating frequency is obtained through the second frequency operating platform, wherein, on the second frequency operating platform, the operating frequency is equal to the product of the current target frequency and the third preset value and the current half of the sum of operating frequencies; After re-determining the operating frequency and controlling the operation of the air conditioner at the operating frequency, the air conditioning control method further includes: judging whether the time for controlling the air conditioner to run at the operating frequency reaches a fourth preset time; If yes, then control the air conditioner to operate at an increased frequency at the re-determined frequency increase rate and the target operating frequency. 8. The air conditioning control method according to claim 1, wherein if the difference between the first outer ring temperature value and the second outer ring temperature value is greater than or equal to a third preset temperature value; taking the current operating frequency as the target operating frequency; The maximum rotational speed of the external fan of the air conditioner is taken as the rotational speed of the external fan. 9. The air conditioning control method according to claim 1, wherein if the difference between the first outer ring temperature value and the second outer ring temperature value is smaller than the first preset temperature value; maintaining the current operating frequency as the operating frequency; maintaining the current target frequency as the target operating frequency; maintaining the current frequency increase rate of the air conditioner as the frequency increase rate; Maintaining the current rotational speed of the external fan of the air conditioner as the rotational speed of the external fan. 10. An air-conditioning control device, characterized in that the air-conditioning control device comprises: The first receiving module is configured to receive a first outer ring temperature value, the first outer ring temperature value representing the average value of the external ambient temperature within a first preset time since the air conditioner is started; The second receiving module is configured to receive a second outer ring temperature value in real time after the second preset time since the air conditioner is started, and the second outer ring temperature value represents the temperature value of the external environment; An acquisition module, configured to acquire the current operating frequency and the current target frequency of the air conditioner in real time; A first control module, configured to determine a target operating frequency, a frequency up rate, One or more of operating frequency and external fan speed; The second control module is configured to control the operation of the air conditioner based on the determined target operating frequency, the frequency increase rate, the operating frequency and the external fan speed. 11. An air conditioner, characterized by comprising a controller, the controller being configured to execute the air conditioner control method according to any one of claims 1-9.

Images