阅读说明：本技术 控制方法、控制装置、空调器和计算机可读存储介质 (Control method, control device, air conditioner, and computer-readable storage medium ) 是由 韦汉儒 于 2019-11-27 设计创作，主要内容包括：本发明提出了一种控制方法、控制装置、空调器和计算机可读存储介质,其中,控制方法包括：检测室内环境温度、空调器的室内机管温和空调器的整机功率；根据室内环境温度、室内机管温和整机功率,调整空调器的室外机风机的转速,和/或,调整空调器的电子膨胀阀的开合度,以对空调器进行节能控制。通过本发明的技术方案,能够在不同环境条件优化空调器的整机能效。(The invention provides a control method, a control device, an air conditioner and a computer readable storage medium, wherein the control method comprises the following steps: detecting the indoor environment temperature, the indoor unit temperature of the air conditioner and the overall power of the air conditioner; and adjusting the rotating speed of an outdoor unit fan of the air conditioner and/or adjusting the opening and closing degree of an electronic expansion valve of the air conditioner according to the indoor environment temperature, the indoor unit pipe temperature and the complete machine power so as to perform energy-saving control on the air conditioner. By the technical scheme of the invention, the overall energy efficiency of the air conditioner can be optimized under different environmental conditions.)

1. A method of controlling an air conditioner, comprising:

detecting the indoor environment temperature, the indoor unit temperature of the air conditioner and the overall power of the air conditioner;

and adjusting the rotating speed of an outdoor unit fan of the air conditioner and/or adjusting the opening degree of an electronic expansion valve of the air conditioner according to the indoor environment temperature, the indoor unit pipe temperature and the complete machine power so as to perform energy-saving control on the air conditioner.

2. The method according to claim 1, wherein the adjusting of the rotation speed of an outdoor unit fan of the air conditioner and/or the adjusting of the opening/closing degree of an electronic expansion valve of the air conditioner according to the indoor ambient temperature, the indoor unit temperature, and the overall power specifically comprises:

determining an absolute value of the temperature difference between the indoor environment temperature and the indoor unit pipe temperature, and determining a ratio between the absolute value of the temperature difference and the power of the whole unit, wherein the ratio is recorded as an energy efficiency adjustment reference value;

determining the energy efficiency adjustment reference value according to a preset time interval to determine whether the energy efficiency adjustment reference value is increased or decreased;

and adjusting the rotating speed of an outdoor unit fan of the air conditioner and/or adjusting the opening and closing degree of an electronic expansion valve of the air conditioner according to the change trend of the energy efficiency adjustment reference value.

3. The method according to claim 2, wherein the adjusting the rotation speed of an outdoor unit fan of the air conditioner according to the variation trend of the energy efficiency adjustment reference value specifically comprises:

adjusting the rotating speed of the outdoor unit fan according to the first offset;

determining that the energy efficiency adjustment reference value is increased, and adjusting the rotating speed of the outdoor unit fan according to the first offset;

determining that the energy efficiency adjustment reference value is reduced, adjusting the rotating speed of the outdoor unit fan according to the second offset,

and the numerical value of the first type offset and the numerical value of the second type offset are opposite in positive and negative.

4. The control method of an air conditioner according to claim 3, further comprising:

determining that the energy efficiency adjustment reference value corresponding to a first time interval is increased, determining that the energy efficiency adjustment reference value corresponding to a second time interval is decreased, and determining the maximum value in the energy efficiency adjustment reference values of the historical records;

determining the rotating speed corresponding to the maximum value in the energy efficiency adjustment reference values, adjusting the rotating speed to be the rotating speed of the outdoor unit fan,

wherein the ending time of the first time interval is the starting time of the second time interval.

5. The method according to claim 3, wherein determining that the energy efficiency adjustment reference value is increased and adjusting the rotation speed of the outdoor unit fan according to the first offset includes:

determining that the energy efficiency adjustment reference value corresponding to a first time interval is increased, and adjusting the rotating speed of the outdoor unit fan according to the first rotating speed offset;

determining that the energy efficiency adjustment reference value corresponding to a second time interval is increased, adjusting the rotating speed of the outdoor unit fan according to the second rotating speed offset,

the ending time of the first time interval is the starting time of the second time interval, the first type of offset comprises the first rotating speed offset and the second rotating speed offset, and the value of the first rotating speed offset is greater than or equal to the value of the second rotating speed offset.

6. The method for controlling an air conditioner according to claim 2, wherein adjusting the opening degree of an electronic expansion valve of the air conditioner according to the trend of the change in the energy efficiency adjustment reference value specifically comprises:

adjusting the opening degree of the electronic expansion valve according to the third offset;

determining that the energy efficiency adjustment reference value is increased, and adjusting the opening degree of the electronic expansion valve according to the third offset;

determining that the energy efficiency adjustment reference value is reduced, adjusting the opening degree of the electronic expansion valve according to a fourth offset,

and the numerical value of the third type offset and the numerical value of the fourth type offset are opposite in positive and negative.

7. The control method of an air conditioner according to claim 6, further comprising:

determining that the energy efficiency adjustment reference value corresponding to a first time interval is increased, determining that the energy efficiency adjustment reference value corresponding to a second time interval is decreased, and determining the maximum value in the energy efficiency adjustment reference values of the historical records;

determining the opening corresponding to the maximum value in the energy efficiency adjustment reference values, and adjusting the opening to the opening of the electronic expansion valve,

wherein the ending time of the first time interval is the starting time of the second time interval.

8. The method according to claim 6, wherein determining that the energy efficiency adjustment reference value increases and adjusting the opening degree of the electronic expansion valve according to the third offset amount specifically includes:

determining that the energy efficiency adjustment reference value corresponding to the first time interval is increased, and adjusting the opening of the electronic expansion valve according to the first opening offset;

determining that the energy efficiency adjustment reference value corresponding to the second time interval is increased, adjusting the opening of the electronic expansion valve according to the second opening offset,

the end time of the first time interval is the start time of the second time interval, the third type offset comprises the first opening offset and the second opening offset, and the value of the first opening offset is greater than or equal to the value of the second opening offset.

9. The control method of an air conditioner according to any one of claims 1 to 8, further comprising:

and when the air conditioner is detected to enter a shutdown state, an oil return state or a defrosting state, stopping energy-saving control of the air conditioner.

10. A control apparatus of an air conditioner including a memory, a processor, and a computer program stored on the memory and executable on the processor,

the processor, when executing the computer program, implements the control method of the air conditioner according to any one of claims 1 to 9.

11. An air conditioner, comprising:

the control device of claim 10;

the outdoor unit is provided with an outdoor unit fan, an electronic expansion valve is arranged between the indoor unit and the outdoor unit, the outdoor unit fan is connected to the control device, the electronic expansion valve is connected to the control device, and the control device executes the following steps:

detecting the indoor environment temperature, the indoor unit temperature of the air conditioner and the overall power of the air conditioner;

and adjusting the rotating speed of the outdoor unit fan and/or adjusting the opening degree of the electronic expansion valve according to the indoor environment temperature, the indoor unit pipe temperature and the complete unit power so as to perform energy-saving control on the air conditioner.

12. A computer-readable storage medium having stored thereon a computer program, characterized in that,

the computer program, when executed by a processor, implements the control method of the air conditioner according to any one of claims 1 to 9.

Technical Field

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

Background

The control method of the outdoor unit fan and the electronic expansion valve of the household variable frequency air conditioner is as follows:

first, the rotational speed of the outdoor unit fan is controlled according to the outdoor ambient temperature, and second, the opening degree of the electronic expansion valve is controlled according to the target exhaust temperature.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

In view of the above, an object of the present invention is to provide a control method.

Another object of the present invention is to provide a control device.

It is still another object of the present invention to provide an air conditioner.

It is yet another object of the present invention to provide a computer-readable storage medium.

In order to achieve the above object, a technical solution of a first aspect of the present invention provides a control method, including: detecting the indoor environment temperature, the indoor unit temperature of the air conditioner and the overall power of the air conditioner; and adjusting the rotating speed of an outdoor unit fan of the air conditioner and/or adjusting the opening and closing degree of an electronic expansion valve of the air conditioner according to the indoor environment temperature, the indoor unit pipe temperature and the complete machine power so as to perform energy-saving control on the air conditioner.

In the technical scheme, the air conditioner can automatically adjust the running state with the best energy efficiency under different running environments by acquiring the indoor environment temperature, the indoor machine pipe temperature and the whole machine power in the running process of the air conditioner, and in addition, the advantages of stepless speed regulation of the variable frequency motor and accurate opening degree of the electronic expansion valve are fully utilized, so that the output of the variable frequency motor and the output of the electronic expansion valve are fully matched with the air conditioner, and the purposes of energy conservation and consumption reduction are achieved.

The indoor environment temperature and the indoor unit pipe temperature can reflect the heat exchange pressure of the air conditioner, and the whole power can reflect the operation load of the air conditioner, so that the rotating speed of the outdoor unit fan and/or the opening degree of the electronic expansion valve are adjusted based on the real-time heat exchange pressure and the operation load, and the optimal energy efficiency of the air conditioner is favorably realized.

In the above technical solution, the control method further includes: according to indoor ambient temperature, indoor machine pipe temperature and complete machine power, the rotational speed of the outdoor unit fan of adjustment air conditioner, and/or, the degree of opening and shutting of the electronic expansion valve of adjustment air conditioner specifically includes: determining an absolute value of the temperature difference between the indoor environment temperature and the indoor unit pipe temperature, determining a ratio of the absolute value of the temperature difference to the power of the whole machine, and recording the ratio as an energy efficiency adjustment reference value; determining an energy efficiency adjustment reference value according to a preset time interval to determine whether the energy efficiency adjustment reference value is increased or decreased; and adjusting the rotating speed of an outdoor unit fan of the air conditioner and/or adjusting the opening degree of an electronic expansion valve of the air conditioner according to the change trend of the energy efficiency adjustment reference value.

In the technical scheme, the energy efficiency adjustment reference value is determined by determining the absolute value of the temperature difference and determining the ratio between the absolute value of the temperature difference and the power of the whole air conditioner, that is, in order to achieve the optimal energy efficiency of the air conditioner, after the rotating speed of an outdoor unit fan and/or the opening degree of an electronic expansion valve are/is adjusted, the energy efficiency adjustment reference value is used as a feedback value to determine whether the adjustment mode is correct.

In the above technical solution, according to a variation trend of the energy efficiency adjustment reference value, adjusting a rotation speed of an outdoor unit fan of the air conditioner specifically includes: adjusting the rotating speed of an outdoor unit fan according to the first offset; determining that the energy efficiency adjustment reference value is increased, and adjusting the rotating speed of an outdoor unit fan according to the first offset; and determining that the energy efficiency adjustment reference value is reduced, and adjusting the rotating speed of the outdoor unit fan according to the second type of offset, wherein the numerical value of the first type of offset and the numerical value of the second type of offset are opposite in positive and negative.

In the technical scheme, firstly, the rotating speed of the outdoor unit fan is adjusted according to the first type of offset, if the numerical value of the first type of offset is a positive number, the rotating speed of the outdoor unit fan is increased after being adjusted, and if the numerical value of the first type of offset is a negative number, the rotating speed of the outdoor unit fan is decreased after being adjusted.

Secondly, if the energy efficiency adjustment reference value is determined to be increased, the trend of adjusting the rotating speed of the outdoor unit fan is correct, so that the rotating speed of the outdoor unit fan can be continuously adjusted according to the first offset, and the energy efficiency of the air conditioner can achieve a better effect.

Correspondingly, if the energy efficiency adjustment reference value is determined to be reduced, the trend of adjusting the rotating speed of the outdoor unit fan is wrong, so that the rotating speed of the outdoor unit fan is adjusted according to the second offset, and the energy efficiency of the air conditioner can achieve a better effect.

In the above technical solution, the control method further includes: determining that the energy efficiency adjustment reference value corresponding to the first time interval is increased, determining that the energy efficiency adjustment reference value corresponding to the second time interval is decreased, and determining the maximum value in the energy efficiency adjustment reference values of the historical records; and determining the rotating speed corresponding to the maximum value in the energy efficiency adjustment reference values, and adjusting the rotating speed to the rotating speed of the outdoor unit fan, wherein the ending moment of the first time interval is the starting moment of the second time interval.

In the technical scheme, when it is determined that the energy efficiency adjustment reference value corresponding to the first time interval is increased, and the energy efficiency adjustment reference value corresponding to the next time interval, that is, the second time interval is decreased, the abnormal decrease of the energy efficiency can be reflected, so that the rotating speed corresponding to the maximum value of the energy efficiency adjustment reference value is adjusted to the rotating speed of the outdoor unit fan.

In the above technical solution, determining that the energy efficiency adjustment reference value increases, and adjusting the rotation speed of the outdoor unit fan according to the first offset specifically includes: determining that the energy efficiency adjustment reference value corresponding to the first time interval is increased, and adjusting the rotating speed of an outdoor unit fan according to the first rotating speed offset; and determining that the energy efficiency adjustment reference value corresponding to the second time interval is increased, and adjusting the rotating speed of the outdoor unit fan according to a second rotating speed offset, wherein the ending moment of the first time interval is the starting moment of the second time interval, the first type of offset comprises a first rotating speed offset and a second rotating speed offset, and the numerical value of the first rotating speed offset is greater than or equal to the numerical value of the second rotating speed offset.

In the technical scheme, the energy efficiency adjustment reference value is determined to be gradually increased according to the preset time interval, and in order to improve the operation reliability of the air conditioner and achieve optimal energy efficiency, the rotation speed offset can be controlled to be reduced along with time, namely the value of the first rotation speed offset is larger than or equal to the value of the second rotation speed offset.

Wherein, the value range of the first rotating speed offset and the value range of the second rotating speed offset are both 20 rpm-100 rpm.

In the above technical solution, adjusting the opening degree of the electronic expansion valve of the air conditioner according to the variation trend of the energy efficiency adjustment reference value specifically includes: adjusting the opening degree of the electronic expansion valve according to the third offset; determining that the energy efficiency adjustment reference value is increased, and adjusting the opening of the electronic expansion valve according to the third offset; and determining that the energy efficiency adjustment reference value is reduced, and adjusting the opening degree of the electronic expansion valve according to a fourth type of offset, wherein the numerical value of the third type of offset and the numerical value of the fourth type of offset are opposite in positive and negative.

In this embodiment, first, the opening degree of the electronic expansion valve is adjusted according to the third type offset amount, and if the value of the third type offset amount is a positive number, the opening degree of the electronic expansion valve is adjusted and then increased, and if the value of the third type offset amount is a negative number, the opening degree of the electronic expansion valve is adjusted and then decreased.

Secondly, if the energy efficiency adjustment reference value is determined to be increased, the trend of adjusting the opening degree of the electronic expansion valve is correct, so that the opening degree of the electronic expansion valve can be continuously adjusted according to the third offset, and the energy efficiency of the air conditioner can achieve a better effect.

Correspondingly, if the energy efficiency adjustment reference value is determined to be reduced, the trend of adjusting the opening degree of the electronic expansion valve is wrong, so that the adjustment of the opening degree of the electronic expansion valve according to the fourth offset is also beneficial to enabling the energy efficiency of the air conditioner to achieve a better effect.

Optionally, since the control accuracy of the electronic expansion valve is high and the time delay is small, after the rotation speed of the outdoor unit fan is stabilized, the energy efficiency is further adjusted by combining the opening degree of the electronic expansion valve, that is, the energy efficiency is finely adjusted.

In the above technical solution, the control method further includes: determining that the energy efficiency adjustment reference value corresponding to the first time interval is increased, determining that the energy efficiency adjustment reference value corresponding to the second time interval is decreased, and determining the maximum value in the energy efficiency adjustment reference values of the historical records; and determining the opening corresponding to the maximum value in the energy efficiency adjustment reference values, and adjusting the opening to be the opening of the electronic expansion valve, wherein the ending time of the first time interval is the starting time of the second time interval.

In the technical scheme, when it is determined that the energy efficiency adjustment reference value corresponding to the first time interval is increased, and the energy efficiency adjustment reference value corresponding to the next time interval, that is, the second time interval is decreased, the abnormal decrease of the energy efficiency can be reflected, so that the opening corresponding to the maximum value of the energy efficiency adjustment reference value is adjusted to the opening of the electronic expansion valve.

In the above technical solution, determining that the energy efficiency adjustment reference value increases, and adjusting the opening degree of the electronic expansion valve according to the third offset specifically includes: determining that the energy efficiency adjustment reference value corresponding to the first time interval is increased, and adjusting the opening of the electronic expansion valve according to the first opening offset; and determining that the energy efficiency adjustment reference value corresponding to the second time interval is increased, and adjusting the opening of the electronic expansion valve according to a second opening offset, wherein the ending time of the first time interval is the starting time of the second time interval, the third type of offset comprises a first opening offset and a second opening offset, and the numerical value of the first opening offset is greater than or equal to the numerical value of the second opening offset.

In the technical scheme, the energy efficiency adjustment reference value is determined to be gradually increased according to the preset time interval, and in order to improve the operation reliability of the air conditioner and achieve optimal energy efficiency, the opening degree offset can be controlled to be reduced along with time, namely the value of the first opening degree offset is larger than or equal to the value of the second opening degree offset.

The value range of the first opening offset and the value range of the second opening offset are both 5 pls-20 pls.

In the above technical solution, the control method further includes: and stopping performing energy-saving control on the air conditioner when the air conditioner is detected to enter a shutdown state, an oil return state or a defrosting state.

In the technical scheme, in the energy-saving control process, the rotating speed of the outdoor unit fan and the opening of the electronic expansion valve are adjusted within a rated range, and the air conditioner is usually in a low-power-consumption running state and has small heat exchange pressure under the shutdown state, the oil return state or the defrosting state, so that the energy efficiency of the air conditioner is not required to be optimized.

A technical solution of a second aspect of the present invention provides a control apparatus, including: the control method comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the computer program, the control method defined by any one technical scheme is realized. Therefore, the technical effect of any technical solution in the first aspect is achieved, and details are not repeated herein.

A third aspect of the present invention provides an air conditioner, including: the above-mentioned control device; the outdoor unit is provided with an outdoor unit fan, an electronic expansion valve is arranged between the indoor unit and the outdoor unit, the outdoor unit fan is connected to the control device, the electronic expansion valve is connected to the control device, and the control device executes the following steps: detecting the indoor environment temperature, the indoor unit temperature of the air conditioner and the overall power of the air conditioner; and adjusting the rotating speed of the outdoor unit fan and/or adjusting the opening degree of the electronic expansion valve according to the indoor environment temperature, the indoor unit pipe temperature and the whole unit power so as to perform energy-saving control on the air conditioner.

A technical solution of a fourth aspect of the present invention is to provide a computer-readable storage medium, where a computer program is executed by a processor to implement the steps of the control method in any one of the above technical solutions, so that the technical effects of any one of the above technical solutions are achieved, and details are not repeated herein.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 shows a schematic flow diagram of a control method of one embodiment of the invention;

FIG. 2 shows a schematic flow chart of a control method of another embodiment of the present invention;

FIG. 3 shows a schematic block diagram of a control device of one embodiment of the present invention;

FIG. 4 shows a schematic block diagram of an air conditioner of an embodiment of the present invention;

FIG. 5 shows a schematic block diagram of a computer-readable storage medium of another embodiment of the present invention.

Detailed Description

So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Some embodiments according to the invention are described below with reference to fig. 1 to 5.