CN115789890A

CN115789890A - Air conditioner control method and device and air conditioner

Info

Publication number: CN115789890A
Application number: CN202211552484.1A
Authority: CN
Inventors: 郝明; 张稳; 刘合心; 陈体宁
Original assignee: Ningbo Aux Electric Co Ltd
Current assignee: Ningbo Aux Electric Co Ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-03-14
Anticipated expiration: 2042-12-05
Also published as: CN115789890B

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 and device and air conditioner

Technical Field

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

Background

With the social development, air conditioners are widely used and the use scenes are more complex. In some severe scenes, the outdoor unit is installed in a narrow environment, for example, a short distance from a wall surface; or the air outlet is blocked and the return air is not smooth, for example, the air outlet is blocked, and a building grid is arranged; after the air conditioner is started in a refrigerating operation mode, because the unit transfers heat from the inner side, the heat dissipation is poor, the air flow is poor, the heat exchange with the large environment is less, the ambient temperature of the air conditioner external unit can quickly rise, and a heat island is formed. In the installation environment, the heat dissipation is poor, the load is high, and in order to improve the effect, the high operating frequency needs to be kept, and the reliability problem is easy to trigger.

Although partial control exists at present, the outer ring interval can be subdivided, and corresponding different target frequencies are set according to the outer ring detected by the unit in real time, for example, the higher the outer ring is, the lower the highest operable frequency is, so that the reliability is ensured. However, there still remains a problem of adjustment lag, that is, since the heat dissipation is poor and the unit itself transfers heat from the inside in a bad installation scene, the outer ring temperature rises rapidly, the action of temperature detection and the action based on temperature detection have lag to the adjustment action, and it is easy to trigger protection or malfunction.

Disclosure of Invention

The invention solves the problem of how to improve the problem of 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, wherein the first outer ring temperature value represents an average value of the outer environment temperature of the air conditioner within a first preset time from the start-up;

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

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

determining one or more of a target operation frequency, an increasing frequency rate, an operation frequency and an outer fan rotating speed according to the difference value of the first outer ring temperature value and the second outer ring temperature value, 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.

Compared with the prior art, the air conditioner control method provided by the invention has the beneficial effects that:

the first outer ring temperature value represents an average temperature value of an external environment within first preset time when the air conditioner is started, the second outer ring temperature value represents an external environment temperature value of the air conditioner after the air conditioner is started for second preset time, the temperature rise degree of the external environment where the air conditioner is located can be judged according to the difference value of the first outer ring temperature value and the second outer ring temperature value, whether the heat dissipation condition of an outer unit of the air conditioner is good or not is judged according to the temperature rise degree of the external environment, and then under the condition that the heat dissipation condition of the environment where the outer unit of the air conditioner is located is obtained, the target operation frequency, the frequency rise rate and the rotating speed of the outer unit of the air conditioner can be determined according to the heat dissipation condition of the outer unit of the air conditioner, so that the target operation frequency of the air conditioner cannot be adjusted timely due to the fact that the adjustment speed of the external temperature is too fast, and the problem that the outer unit of the air conditioner is prone to trigger protection or failure due to the fact that the temperature of the outer unit is too fast is avoided. The problem that the reliability of the air conditioner is reduced due to poor installation environment in the prior art is solved.

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 first preset temperature value and less than a 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 increasing rate of the air conditioner as the frequency increasing rate;

and maintaining the current rotating speed of the outer fan of the air conditioner as the rotating speed of the outer 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;

taking the product of the current frequency increasing rate of the air conditioner and a second preset value as the frequency increasing rate; wherein the second preset value is less than 1;

and taking the maximum allowable rotating speed of an outer fan of the air conditioner as the rotating speed of the outer 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;

and taking the maximum rotating speed of an outer fan of the air conditioner as the rotating speed of the outer fan.

Optionally, if the difference between the first outer ring temperature value and the second outer ring temperature value is smaller 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 a current rate of frequency boost of the air conditioner as the rate of frequency boost;

An air conditioning control device, comprising:

the first receiving module is used for receiving a first external environment temperature value, wherein the first external environment temperature value represents an average value of external environment temperatures of the air conditioner within a first preset time from the start;

the second receiving module is used for receiving a second outer ring temperature value in real time after a second preset time of the air conditioner from the start, wherein the second outer ring temperature value represents a temperature value of an external environment;

the acquisition module is used for acquiring the current operating frequency and the current target frequency of the air conditioner in real time;

the first control module is used for determining one or more of target operation frequency, frequency increasing rate, operation frequency and outer fan rotating speed according to the difference value of the first outer ring temperature value and the second outer ring temperature value, the current operation frequency and the current target frequency;

and the second control module is used for 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.

An air conditioner comprises a controller, wherein the controller is used for executing the air conditioner control method.

The air conditioner control device and the air conditioner provided by the invention can execute the air conditioner control method, and the beneficial effects of the air conditioner control device and the air conditioner relative to the prior art are the same as the beneficial effects of the air conditioner control method relative to the prior art, and are not repeated herein.

Drawings

Fig. 1 is a flowchart of an air conditioner control method provided in an embodiment of the present application;

fig. 2 is a flowchart of step S4 in the air conditioner control method provided in the embodiment of the present application;

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

fig. 4 is another flowchart of step S411 in the air conditioner control method provided in the embodiment of the present application;

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

fig. 6 is another flowchart of step S4 in the air conditioner control method provided in the embodiment of the present application;

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

fig. 8 is another flowchart of step S421 in the air conditioner control method provided in the embodiment of the present application;

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

fig. 10 is a flowchart of a step S4 in the air conditioner control method provided in the embodiment of the present application;

fig. 11 is another flowchart of step S4 in the air conditioner control method provided in the embodiment of the present application;

fig. 12 is a schematic functional block diagram of an air conditioner control device according to an embodiment of the present application.

Description of reference numerals:

10-a first receiving module; 20-a second receiving module; 30-an acquisition module; 40-a first control module; 50-a second control module.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

The embodiment of the application provides an air conditioner. The air conditioner comprises an air conditioner inner unit and an air conditioner outer unit, wherein the air conditioner inner unit is installed in a designated area, and the air conditioner outer unit is installed in an environment outside the designated area. The air conditioner internal unit is connected with the air conditioner external unit to form a refrigeration cycle system. In the case where the air conditioner external unit is operated, the refrigerant may be circulated in the refrigeration cycle system to provide an air conditioning effect to a designated area through the air conditioner internal unit. Optionally, the air conditioning effect includes, but is not limited to, a temperature conditioning effect, a humidity conditioning effect, a fresh air effect, or a sterilization and dust removal effect, etc.

In the case that the air conditioner operates in a cooling mode or a dehumidifying mode, a high temperature condition is exhibited in the outdoor unit, that is, the outdoor unit needs to exchange heat with the external environment to ensure that the indoor unit of the air conditioner can provide effective cooling or dehumidifying function to a designated area.

In the prior art, some air conditioner external units are installed in a scene with a severe heat dissipation environment. For example, the air conditioner external unit is close to the wall surface, which causes the installation environment of the air conditioner external unit to be narrow; for example, the air outlet of the air conditioner outdoor unit is blocked or a building grille is installed, so that the air outlet of the air conditioner outdoor unit is blocked and the air return is not smooth. Under the above circumstances, under the condition that the air conditioner operates in a refrigeration mode or a dehumidification mode, the heat is transferred from the inner side by the air conditioner external unit, and the poor environment causes poor heat dissipation effect and poor air flow of the air conditioner external unit, so that the heat exchange between the small environment where the air conditioner external unit is located and the external large environment is less, the local temperature of the environment where the air conditioner external unit is located is increased quickly, and a heat island surrounding the air conditioner external unit is formed.

Under the condition that the air conditioner external unit forms a heat island, the temperature of an outer ring rises rapidly due to poor heat dissipation and heat transfer of the unit from the inner side in a severe installation scene, and the execution of the temperature detection action to the execution of the adjustment action has hysteresis, so that protection or failure is easily triggered. For example, the outer loop temperature at 35 ℃ and 40 ℃ corresponds to refrigeration operating maximum frequencies of 90HZ and 80HZ, respectively. When the current outer ring temperature is detected to be 35 ℃ at the time of starting up, the running frequency is 90HZ; when the outer ring is quickly raised to 40 ℃, the load of the unit is quickly raised, and the frequency is in the process of reducing the frequency of 90HZ to 80HZ at the time, and the unit has no time to reduce the frequency and has triggered protection. Resulting in a decrease in reliability of the air conditioner.

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

The air conditioner comprises a controller, and the controller can execute the air conditioner control method so as to solve the problem that the reliability of the air conditioner is reduced due to poor installation environment of an air conditioner external unit in the prior art and achieve the purpose of improving the reliability of the air conditioner. Alternatively, the controller may be an integrated circuit chip having signal processing capabilities. The controller may be a general-purpose processor, and may include a Central Processing Unit (CPU), a single chip Microcomputer (MCU), a Micro Controller Unit (MCU), a Complex Programmable Logic Device (CPLD), a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an embedded ARM, and other chips, where the controller may implement or execute the methods, steps, and Logic blocks disclosed in the embodiments of the present invention.

In a possible implementation manner, the air conditioner may further include a memory for storing program instructions executable by the controller, for example, an embodiment of the present application provides an air conditioning control device, and the air conditioning control device provided by the embodiment of the present application includes at least one program that may be stored in the memory in the form of software or firmware. The Memory may be a stand-alone external Memory including, but not limited to, random Access Memory (RAM), read Only Memory (ROM), programmable Read-Only Memory (PROM), erasable Read-Only Memory (EPROM), electrically Erasable Read-Only Memory (EEPROM). The memory may also be integrated with the controller, for example the memory may be integrated with the controller on the same chip.

In addition, the air conditioner can further comprise a temperature detection device, and the temperature detection device is installed on the air conditioner outdoor unit and used for detecting the temperature of the environment where the air conditioner outdoor unit is located, namely the temperature value of the outer ring. Wherein the temperature detection means may be a temperature sensor. The temperature detection device is electrically connected with the controller so as 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, referring to fig. 1, the air conditioner control method includes:

s1, receiving a first outer ring temperature value.

The first outer ring temperature value represents an average value of the outer ring temperature of the air conditioner within a first preset time from the start-up. That is to say, when the air conditioner starts, the temperature detection device starts to perform temperature detection in real time, and sends the plurality of outer ring temperature values detected within the first preset time to the controller, and the controller can obtain the average value of the plurality of outer ring temperature values according to the plurality of outer ring temperature values, so as to obtain the first outer ring temperature value.

The outdoor unit of the air conditioner generates more heat in the operation process, so that the temperature of the external environment where the outdoor unit of the air conditioner is located changes. Therefore, by detecting the first outer ring temperature value, the temperature condition of the environment where the air-conditioning outdoor unit is located can be judged on the basis of the first outer ring temperature value under the condition that the air-conditioning outdoor unit hardly changes the temperature of the external environment.

Optionally, the value of the first preset time may be 5s to 10s, in other words, the value of the first preset time may be 5s, 6s, 7s, 8s, 9s, or 10s, and the like. The value of the first preset time is set to be 5s-10s, so that the situation that the temperature of the external environment is changed due to the fact that the running time of the air conditioner external unit is too long, and the detected first outer ring temperature value is inaccurate can be prevented; meanwhile, the situation that the first preset time is too short and errors occur can be prevented.

It should be noted that, before step S1, it is also necessary to determine whether the last time the air conditioner is turned off and the time when the air conditioner is turned on exceeds a specified time length. If the difference between the time when the air conditioner is started for the next time and the time when the air conditioner is shut down for the last time is short, heat in the external environment where the air conditioner is located is not dissipated, and the detected first external ring temperature value is influenced by heat generated by the last operation of the air conditioner. Optionally, the value of the specified time length may be 30min to 60min.

It should be noted that, if the air conditioner determines that the last time the air conditioner is turned off is shorter than the specified time duration, the air conditioner control method may be executed based on the first outer-loop temperature value in the last operation process of the air conditioner. That is, the first outer ring temperature value at this time does not need to be detected by the temperature detection device, and can be directly obtained by the controller.

And S2, receiving a second outer ring temperature value in real time after second preset time of the air conditioner from the start.

Wherein the second outer-loop temperature value represents a temperature of an external environment in which the outdoor unit of the air conditioner is located. That is, the temperature of the outside is detected in real time by the temperature detecting means, and the temperature is transmitted to the controller in real time.

Optionally, the value of the second preset time may be 10s to 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, 30s, or the like. Wherein, preferably, the second preset time is 10s. When the first preset time value is 10s, it means that the controller immediately starts to acquire the second outer-ring temperature value when acquiring the first outer-ring temperature value.

And S3, acquiring the current running frequency and the current target frequency of the air conditioner in real time.

The controller can directly acquire the running state of the air conditioner, namely the current running frequency and the current target frequency of the air conditioner. It should be noted that, the current target frequency refers to the highest operation frequency allowed for 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 does not continue to increase the frequency.

And S4, determining one or more of the target frequency, the frequency raising rate, the operating frequency and the rotating speed of the outer fan according to the difference value of 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 to be noted that the difference value between the first outer ring temperature value and the second outer ring temperature value can be used for judging the temperature rise degree of the external environment where the air conditioner is located, and further judging whether the heat dissipation condition of the external unit of the air conditioner is good or not according to the temperature rise degree of the external environment, namely, the heat dissipation effect of the external environment is poor under the condition of a large difference value; on the contrary, when the difference is small, the heat dissipation effect of the external environment is good. Under the condition that the heat dissipation condition of the environment where the air conditioner external unit is located is obtained, one or more of the target operation frequency, the frequency-increasing rate and the rotating speed of the external fan of the air conditioner can be determined based on the heat dissipation condition of the air conditioner external unit, so that the situation that the operation frequency of the air conditioner cannot be adjusted due to the fact that the target operation frequency of the air conditioner is adjusted at an excessively high speed along with the external temperature is avoided, and the problem that the air conditioner is prone to triggering protection or failure due to the fact that the temperature of the external environment is increased excessively fast is avoided. The problem that the reliability of the air conditioner is reduced due to poor installation environment in the prior art is solved.

Optionally, in this embodiment, the manner of determining the heat dissipation condition of the external environment according to the difference value between the first outer ring temperature value and the second outer ring temperature value is to determine whether the heat dissipation condition of the external environment is good according to a range of the difference value between the first outer ring temperature value and the second outer ring temperature value.

In an embodiment of the present application, if a difference between the first outer-ring temperature value and the second outer-ring temperature value is greater than or equal to a first preset temperature value and less than a second preset temperature value. Optionally, the first preset temperature value is 1 ℃ to 3 ℃, that is, the first preset temperature value may be 1 ℃, 2 ℃ or 3 ℃ or the like; the value of the second preset temperature value can be 3-5 ℃; that is, the second predetermined temperature value may be 3 ℃, 4 ℃ or 5 ℃. It is worth noting that the second preset temperature value should be larger than the first preset temperature value.

In a case that a difference between the first outer ring temperature value and the second outer ring temperature value is greater than or equal to a first preset temperature value and less than a second preset temperature value, it indicates that the temperature of the external environment is increased but not severe at this time, and based on this, referring to fig. 2, step S4 may include:

s411, re-determining the target operation frequency and the operation frequency according to the current operation frequency and the current target frequency.

And S412, maintaining the current frequency increasing rate of the air conditioner as the frequency increasing rate.

And S413, maintaining the current rotating speed of the outer fan of the air conditioner as the rotating speed of the outer fan.

In order to prevent the reliability of the air conditioner from being affected, the operating frequency and the target operating frequency of the air conditioner are re-determined based on the current operating frequency and the current target frequency of the air conditioner, so that the situation that the target frequency of the air conditioner is lowered and the air conditioner is not lowered in time and protection is triggered can be prevented. If the current operating frequency is close to the current target frequency, the influence of the heat dissipation of the external unit on the environment temperature is small after the subsequent frequency is increased; otherwise, the frequency is increased, the heat dissipation effect of the external unit is large, and the target frequency needs to be reduced. Therefore, the operating frequency and the target operating frequency of the air conditioner are adjusted according to the current operating frequency and the current target frequency, and the continuous deterioration of the external environment can be prevented.

In addition, although the heat dissipation condition of the external environment can affect the operation reliability of the air conditioner, the influence on the operation of the air conditioner is relatively small, and based on the influence, the rotating speed of the external fan of the air conditioner external unit and the frequency rising rate of the air conditioner can be kept unchanged.

It should be noted that step S411, step S412, and step S413 do not refer to their execution order, and the above three steps may be executed simultaneously or in multiple times.

Alternatively, referring to fig. 3, the target operating frequency is determined in step S411 as follows:

s11, judging whether the current running frequency is smaller than the product of the current target frequency and the first preset value.

Wherein the first preset value is less than 1. Optionally, the first preset value may be 0.6 to 0.8, that is, 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, 0.8, or the like, where the first preset value is preferably 0.7. That is, whether the current operating frequency and the current target frequency are close to each other may be determined by multiplying the current operating frequency and the current target frequency by the first preset value. If the current operating frequency is greater than or equal to the product, the current operating frequency is close to the current target frequency; if the current operating frequency is less than the product, the difference between the current operating frequency and the current target frequency is larger.

And S12, if so, taking the product of the current target frequency and the first preset value as the target operating frequency.

At this time, the difference between the current target operating frequency and the current target frequency is large, and therefore if the current operating frequency continues to increase, the temperature increase speed of the external environment increases, and the external heat dissipation situation is deteriorated.

And S13, if not, maintaining the current target frequency as the target running frequency.

At this time, the current target operating frequency is close to the current target frequency, and thus, the operating frequency of the air conditioner does not excessively increase, and thus, the current target frequency of the air conditioner may not be adjusted.

Referring to fig. 4, in step S411, the operation frequency of the air conditioner is determined again as follows:

and S14, forming a first frequency operation platform according to the current target frequency, the first preset value and the current operation frequency.

And S15, acquiring the operating frequency through the first frequency operating platform.

It should be noted that, while the target operation frequency of the air conditioner is adjusted, the operation frequency of the air conditioner is determined again through the first frequency operation platform, so as to determine the operation frequency of the air conditioner in a stable state, thereby preventing the situation that the operation frequency of the air conditioner is increased to trigger protection.

Optionally, in the first frequency operation platform, the operation frequency is equal to half of the sum of the current target frequency and the sum of the current operation frequency and the product of the first preset value. In other words, the operating frequency may be determined to be 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 product of the first preset value and the current target frequency. At the moment, the running frequency is increased relative to the current target frequency, so that the air conditioner can meet the comfort level required by a user; and if the operating frequency is less than the product of the first preset value and the current target frequency, the operation frequency determined again does not exceed the target operation frequency determined again, and further the air conditioner is not triggered and protected. Therefore, the comfort of the user can be ensured not to be influenced, the air conditioner can not be triggered and protected, and the running stability of the air conditioner can be ensured.

Of course, referring to fig. 5, in the present embodiment, after the operation frequency and the target operation frequency are re-determined, the air conditioner controls the operation of the air conditioner at the re-determined operation frequency. And, the air conditioner control method further includes:

and S16, judging whether the time for controlling the air conditioner to operate at the operating frequency reaches a third preset time.

And S17, if so, controlling the air conditioner to perform frequency-up operation at the determined frequency-up rate and the redetermined target operation frequency.

In other words, after the air conditioner reaches the third preset time at the redetermined operation frequency, the air conditioner reaches a stable state, and thus, the above-mentioned first frequency operation platform may be exited, so that the air conditioner returns to a normal frequency-increasing state to continue the operation, that is, to control the operation of the air conditioner by the frequency-increasing rate determined in step S412 and the target operation frequency redetermined 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, and the like. Wherein the third preset time is preferably 180s.

In another embodiment of the present application, if a 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. At this moment, the rising of the external environment is more, and the heat exchange capacity of the air conditioner external unit needs to be improved so as to prevent the operation of the air conditioner from being influenced and prevent the comfort level of a user from being influenced. Optionally, the value of the third preset temperature value may be 6 ℃ to 9 ℃, in other words, the value of the third preset temperature value may be 6 ℃, 7 ℃, 8 ℃ or 9 ℃ or the like; wherein, the value of the third preset temperature value is preferably 8 ℃.

At this time, referring to fig. 6, step S4 includes:

and S421, re-determining the target operation frequency and the operation frequency according to the current operation frequency and the current target frequency.

And S422, taking the product of the current frequency increasing rate of the air conditioner and the second preset value as the frequency increasing rate.

Wherein the second preset value is less than 1. Optionally, the value of the second preset value may be 0.4 to 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, the up-conversion rate of the air conditioner needs to be reduced.

And S423, taking the maximum allowable rotating speed of the outer fan of the air conditioner as the rotating speed of the outer fan.

That is, 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 less than the third preset temperature value, it indicates that the temperature rise of the external environment is high, and the frequency-rising rate needs to be reduced, so as to avoid forming a large amount of heat in a short time; meanwhile, the rotating speed of the outer fan is increased, so that the blowing distance is increased, and the heat exchange capacity of the outer unit and the environment is enhanced.

Please refer to fig. 7, in step S421, the method for re-determining the target operating frequency is as follows:

and S21, judging whether the current running frequency is smaller 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 to 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, 0.9, or the like; 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, whether the current operating frequency is close to the current target frequency can be judged.

And S22, if so, taking the product of the current target frequency and the third preset value as the target operating frequency.

And S23, if not, maintaining the current target frequency as the target running 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 indicates that the current operating frequency is close to the current target frequency, and at this time, even if the air conditioner continues to increase the frequency, the operating frequency of the air conditioner will not be increased too much, so that the influence on the heat generated by the air conditioner is small, and therefore, the current target frequency of the air conditioner can be maintained as the target operating frequency. When the current operating frequency is smaller than the product of the current target frequency and the third preset value, the difference between the current operating frequency and the current target frequency is large, and at the moment, the air conditioner continuously increases the frequency at the current target frequency to cause the operating frequency of the air conditioner to be increased too much to cause the heat to be generated too much, so that the external environment is continuously deteriorated; therefore, the target operating frequency needs to be determined again, and then the product of the third preset value and the current target frequency is used as the target operating frequency.

Referring to fig. 8, in step S421, the operation frequency is determined again as follows:

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

And S25, acquiring the operating frequency through the second frequency operating platform.

Optionally, in the second frequency operation platform, the operation frequency is equal to half of the sum of the current target frequency and the sum of the current operation frequency and a third preset value. In other words, the operating frequency may be determined to be a value between the current operating frequency and the third preset value and the current target frequency, that is, the newly determined operating frequency is greater than the current operating frequency and less than the product of the third preset value and the current target frequency. At the moment, the running frequency is increased relative to the current target frequency, so that the air conditioner can meet the comfort level required by a user; and if the operating frequency is less than the product of the third preset value and the current target frequency, the operation frequency determined again does not exceed the target operation frequency determined again, and further the air conditioner cannot be triggered and protected. Therefore, the comfort of the user can be ensured not to be influenced, the air conditioner can not be triggered and protected, and the running stability of the air conditioner can be ensured.

Of course, in the present embodiment, after the operation frequency and the target operation frequency are re-determined, the air conditioner controls the air conditioner to operate at the re-determined operation frequency. In addition, referring to fig. 9, the air conditioner control method further includes:

and S26, judging whether the time for controlling the air conditioner to operate at the operating frequency reaches a fourth preset time.

And S27, if so, controlling the air conditioner to perform frequency-up operation at the re-determined frequency-up rate and the target operation frequency.

In other words, after the air conditioner reaches the fourth preset time at the redetermined operation frequency, the air conditioner reaches a stable state, and thus, the above-mentioned second frequency operation platform may be exited, so that the air conditioner returns to a normal frequency increasing state to continue the operation, that is, to control the operation of the air conditioner through the frequency increasing rate redetermined in step S422 and the target operation frequency redetermined in step S421.

Optionally, 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, 230s, 240s, 250s, 260s, 270s, 280s, 290s, 300s, 310s, 320s, 330s, 340s, 350s, 360s, 370s, 380s, 390s, 400s, 410s, 420s, 430s, 440s, 450s, 460s, 470s, 480s, 490s, 500s, 510s, 520s, 530s, 540s, 550s, 560s, 570s, 580s, 590s, or 600s, and so on. Among them, the fourth preset time is preferably 540s.

In some further embodiments of the present application, if a difference between the first outer-ring temperature value and the second outer-ring temperature value is greater than or equal to a third preset time, it indicates that an external environment is relatively severe, and a local heat island is formed. In order to avoid the shutdown risk, referring to fig. 10, step S4 includes:

and S431, taking the current operation frequency as the target operation frequency.

And S432, taking the maximum rotating speed of the outer fan of the air conditioner as the rotating speed of the outer fan.

And taking the current operating frequency as the target operating frequency, namely adjusting the frequency increasing rate to be 0, prohibiting the air conditioner from continuously increasing the frequency, and maintaining the current operating frequency to continuously operate by the air conditioner. Of course, it can be regarded that the current operation frequency is maintained as the operation frequency of the air conditioner. In addition, the rotating speed of the outer fan is adjusted to the maximum so as to enhance the local heat exchange capacity and avoid overhigh local temperature field. Therefore, the air conditioner can be prevented from stopping, and the comfort of a user can be ensured not to be greatly influenced.

In still other embodiments of the present application, if a difference between the first outer-ring temperature value and the second outer-ring temperature value is smaller than a first preset temperature value, it indicates that an installation environment of the outdoor unit of the air conditioner is more conventional and has a good heat dissipation condition, based on this, referring to fig. 11, step S4 may include:

s441, maintaining the current running frequency as the running frequency;

s442, maintaining the current target frequency as a target operation frequency;

s443, maintaining the current frequency increasing rate of the air conditioner as the frequency increasing rate;

and S444, maintaining the current rotating speed of the outer fan of the air conditioner to be the rotating speed of the outer fan.

That is, it can be considered that the current operation state of the air conditioner is maintained and the operation parameters of the air conditioner are not adjusted.

After the operating frequency, the target operating frequency, the up-conversion rate, the outer fan rotational speed, and the like are determined based on step S4.

Referring to fig. 1, the air conditioning control method further includes:

and S5, 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.

Based on this, can prevent the condition that the air conditioner easily triggers the protection under the condition that ensures that the air conditioner can satisfy user's travelling comfort demand to improve the stability of air conditioner operation.

As described above, the air conditioner may execute the air conditioner control method, and determine the temperature increase degree of the external environment where the air conditioner is located according to the difference between the first outer-loop temperature value and the second outer-loop temperature value, and then determine whether the heat dissipation condition of the external unit of the air conditioner is good or not according to the temperature increase degree of the external environment, and further determine the target operation frequency, the frequency increase rate, and the rotating speed of the external air conditioner based on the heat dissipation condition of the external unit of the air conditioner under the condition that the heat dissipation condition of the external unit of the air conditioner is obtained, so as to prevent the operation frequency of the air conditioner from being too adjusted due to too fast adjustment speed of the target operation frequency of the air conditioner along with the external temperature, thereby avoiding the problem that the air conditioner is easy to trigger protection or malfunction due to too fast temperature increase of the external environment. The problem that the reliability of the air conditioner is reduced due to poor installation environment in the prior art is solved.

Referring to fig. 12, in order to execute possible steps of the air conditioning control method provided in each of the above embodiments, fig. 12 is a schematic diagram illustrating 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 by the embodiment of the application is used for executing the air conditioner control method. It should be noted that the basic principle and the technical effects of the air conditioning control device provided in the present embodiment are substantially the same as those of the above embodiments, and for the sake of brief description, no part of the present embodiment is mentioned, and reference may be made to the corresponding contents in the above embodiments.

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

The first receiving module 10 is configured to receive a first external environment temperature value, where the first external environment temperature value represents an average value of external environment temperatures of the air conditioner within a first preset time from a start of the air conditioner.

Optionally, the first receiving module 10 is configured to execute step S1 in each of the above-mentioned figures to achieve a corresponding technical effect.

The second receiving module 20 is configured to receive a second outer ring temperature value in real time after a second preset time since the air conditioner starts, where the second outer ring temperature value represents a temperature value of an external environment.

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

The obtaining module 30 is used for obtaining the current operating frequency and the current target frequency of the air conditioner in real time.

Optionally, the obtaining module 30 is configured to execute step S3 in the above-mentioned figures to achieve a corresponding technical effect.

The first control module 40 is configured to determine one or more of a target operating frequency, an up-conversion rate, an operating frequency, and an external fan rotation speed according to a difference between the first external ring temperature value and the second external ring temperature value, the current operating frequency, and the current target frequency.

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

The second control module 50 is configured to control operation of the air conditioner at the determined target operating frequency, ramp rate, operating frequency, and the external fan speed.

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

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). 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 shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

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

The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An air conditioner control method, comprising:

receiving a first external environment temperature value, wherein the first external environment temperature value represents an average value of external environment temperatures of the air conditioner within a first preset time from the start;

2. The air conditioner 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 first preset temperature value and less than a second preset temperature value;

3. The air conditioner control method according to claim 2, wherein the step of re-determining the target operation frequency depending on the current operation frequency and the current target frequency comprises:

judging whether the current operating frequency is smaller than the product of the current target frequency and a first preset value; wherein the first preset value is less than 1;

if so, taking the product of the current target frequency and the first preset value as the target operating frequency; if not, maintaining the current target frequency as the target running frequency.

4. The air conditioner control method according to claim 3, wherein the step of re-determining the operation frequency depending on the current operation frequency and the current target frequency comprises:

forming a first frequency operation platform according to the current target frequency, the first preset value and the current operation frequency;

acquiring the operating frequency through the first frequency operating platform, wherein in the first frequency operating platform, the operating frequency is equal to half of the sum of the current target frequency, the product of the current target frequency and the first preset value and the current operating frequency;

after re-determining the operation frequency and controlling the air conditioner to operate at the operation frequency, the air conditioner control method further includes:

judging whether the time for controlling the air conditioner to operate at the operating frequency reaches a third preset time or not;

and if so, controlling the air conditioner to perform frequency-up operation according to the determined frequency-up rate and the redetermined target operation frequency.

5. The air conditioner 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 second preset temperature value and less than a third preset temperature value;

6. The air conditioner control method according to claim 5, wherein the step of re-determining the target operation frequency according to the current operation frequency and the current target frequency comprises:

judging whether the current operating frequency is smaller than the product of a third preset value and the current target frequency; wherein the third preset value is less than 1;

if so, taking the product of the current target frequency and the third preset value as the target operating frequency; if not, maintaining the current target frequency as the target running frequency.

7. The air conditioner control method according to claim 6, wherein the step of re-determining the operation frequency depending on the current operation frequency and the current target frequency comprises:

forming a second frequency operation platform according to the current target frequency, the third preset value and the current operation frequency;

acquiring the operating frequency through the second frequency operating platform, wherein in the second frequency operating platform, the operating frequency is equal to half of the sum of the current target frequency, the product of the current target frequency and the third preset value and the current operating frequency;

judging whether the time for controlling the air conditioner to operate at the operating frequency reaches a fourth preset time or not;

and if so, controlling the air conditioner to perform frequency-up operation at the re-determined frequency-up rate and the target operation frequency.

8. The air conditioner 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;

9. The air conditioner 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 a first preset temperature value;

maintaining the current operating frequency as the operating frequency;

maintaining the current target frequency as the target operating frequency;

10. An air conditioning control device characterized by comprising:

11. An air conditioner characterized by comprising a controller for executing the air conditioner control method according to any one of claims 1 to 9.