CN108759010B - Refrigerant supplement control method of air conditioner, air conditioner and storage medium - Google Patents
Refrigerant supplement control method of air conditioner, air conditioner and storage medium Download PDFInfo
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- CN108759010B CN108759010B CN201810634492.8A CN201810634492A CN108759010B CN 108759010 B CN108759010 B CN 108759010B CN 201810634492 A CN201810634492 A CN 201810634492A CN 108759010 B CN108759010 B CN 108759010B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The invention discloses a control method for air conditioner refrigerant supplement, which comprises the following steps: acquiring a reference temperature of the air conditioner, wherein the reference temperature comprises at least one of an indoor heat exchanger temperature, an outdoor heat exchanger outlet temperature and an exhaust temperature; acquiring a difference value between the reference temperature and a preset calibration temperature; and when the difference value is larger than a preset threshold value, controlling the air conditioner to perform refrigerant supplement operation. The invention also discloses an air conditioner and a storage medium. The method and the device obtain the difference value between the reference temperature and the preset calibration temperature, judge that the air conditioner is lack of refrigerant when the difference value is larger than the preset threshold value, and control the air conditioner to perform refrigerant supplement operation at the moment, so that the refrigerant lack of the air conditioner is automatically detected, and the error of manual detection is avoided.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a refrigerant supplement control method of an air conditioner, the air conditioner and a storage medium.
Background
In the life of people, the air conditioner is an indispensable household appliance, and the air conditioner can lack fluorine after long-term operation and needs to be supplemented with a refrigerant. In the prior art, low-pressure is detected through a pressure gauge firstly, calibration is carried out, refrigerants are added for an air conditioning system according to a deviation value until the pressure returns to a normal range, and errors exist in manual operation in the whole process.
Disclosure of Invention
The invention mainly aims to provide a refrigerant supplement control method of an air conditioner, and aims to solve the problem that an error exists when the air conditioner supplements refrigerants manually.
In order to achieve the above object, the present invention provides a refrigerant supplement control method for an air conditioner, the refrigerant supplement control method for an air conditioner comprising:
acquiring a reference temperature of the air conditioner, wherein the reference temperature comprises at least one of an indoor heat exchanger temperature, an outdoor heat exchanger outlet temperature and an exhaust temperature;
acquiring a difference value between the reference temperature and a preset calibration temperature;
and when the difference value is larger than a preset threshold value, controlling the air conditioner to perform refrigerant supplement operation.
Preferably, the method for controlling refrigerant replenishment of an air conditioner further includes:
when the air conditioner meets the refrigerant supplement condition, controlling the air conditioner to operate in a refrigeration mode for a preset time;
and after the preset time, executing the step of acquiring the reference temperature of the air conditioner.
Preferably, the step of obtaining the difference between the reference temperature and a preset calibration temperature includes:
acquiring the indoor environment temperature and the outdoor environment temperature of the environment where the air conditioner is located;
acquiring the calibration temperature according to the indoor environment temperature and the outdoor environment temperature, wherein the calibration temperature comprises at least one of an indoor heat exchanger calibration temperature, an outdoor heat exchanger outlet calibration temperature and an exhaust calibration temperature;
determining the difference value according to the reference temperature and the calibration temperature.
Preferably, the step of controlling the air conditioner to perform a refrigerant supplement operation when the difference is greater than a preset threshold includes:
when the difference is larger than a preset threshold value, obtaining an adjusting parameter corresponding to the difference, wherein the adjusting parameter comprises at least one of the opening degree and the opening duration of the electronic expansion valve;
and controlling the electronic expansion valve according to the adjusting parameter so as to supplement the refrigerant.
Preferably, the step of obtaining the adjustment parameter corresponding to the difference value includes:
acquiring the amount of the refrigerant corresponding to the difference value;
and acquiring the adjusting parameters according to the amount of the refrigerant.
Preferably, the step of acquiring the reference temperature of the air conditioner is performed periodically.
Further, to achieve the above object, the present invention also provides an air conditioner including: the air conditioner comprises a memory, a processor and a refrigerant supplement control program of the air conditioner, wherein the refrigerant supplement control program of the air conditioner is stored in the memory and can run on the processor, and the steps of the refrigerant supplement control method of the air conditioner are realized when the refrigerant supplement control program of the air conditioner is executed by the processor.
In order to achieve the above object, the present invention further provides a computer readable storage medium, where a refrigerant supplement control program of an air conditioner is stored, and when the refrigerant supplement control program of the air conditioner is executed by a processor, the steps of the refrigerant supplement control method of the air conditioner are implemented.
According to the refrigerant supplement control method of the air conditioner, the air conditioner and the storage medium, the difference value between the reference temperature and the preset calibration temperature is obtained, the refrigerant deficiency of the air conditioner is judged when the difference value is larger than the preset threshold value, and the air conditioner is controlled to carry out refrigerant supplement operation, so that the refrigerant deficiency of the air conditioner is automatically detected, and the phenomena of errors and complex operation caused by manual detection are avoided.
Drawings
Fig. 1 is a schematic view of a terminal structure of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a refrigerant charge control method of an air conditioner according to a first embodiment of the present invention;
FIG. 3 is a flowchart illustrating a refrigerant charge control method of an air conditioner according to a second embodiment of the present invention;
FIG. 4 is a flowchart illustrating a refrigerant charge control method of an air conditioner according to a third embodiment of the present invention;
fig. 5 is a flowchart illustrating a refrigerant charge control method of an air conditioner according to a fourth embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: acquiring a reference temperature of the air conditioner, wherein the reference temperature comprises at least one of an indoor heat exchanger temperature, an outdoor heat exchanger outlet temperature and an exhaust temperature; acquiring a difference value between the reference temperature and a preset calibration temperature; and when the difference value is larger than a preset threshold value, controlling the air conditioner to perform refrigerant supplement operation.
Due to the prior art, when the air conditioner is manually detected to add the refrigerant, the operation parameters of the air conditioner are complex, so that the phenomenon of inaccurate detection is easily caused when the refrigerant is determined, and the manual operation process is complicated.
As shown in fig. 1, fig. 1 is a schematic diagram of a terminal structure of an air conditioner according to an embodiment of the present invention.
The terminal of the embodiment of the invention is an air conditioner.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a memory 1002, a communication bus 1003, and a temperature sensor 1004. The communication bus 1003 is used to implement connection communication among these components.
The memory 1002 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). As shown in fig. 1, the memory 1003 as a computer storage medium may include a control program for refrigerant supplement of the air conditioner; the processor 1001 may be configured to call a control program for refrigerant replenishment of the air conditioner stored in the memory 1002, and perform the following operations:
acquiring a reference temperature of the air conditioner, wherein the reference temperature comprises at least one of an indoor heat exchanger temperature, an outdoor heat exchanger outlet temperature and an exhaust temperature;
acquiring a difference value between the reference temperature and a preset calibration temperature;
and when the difference value is larger than a preset threshold value, controlling the air conditioner to perform refrigerant supplement operation.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1002, and also perform the following operations:
when the air conditioner meets the refrigerant supplement condition, controlling the air conditioner to operate in a refrigeration mode for a preset time;
and after the preset time, executing the step of acquiring the reference temperature of the air conditioner.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1002, and also perform the following operations:
acquiring the indoor environment temperature and the outdoor environment temperature of the environment where the air conditioner is located;
acquiring the calibration temperature according to the indoor environment temperature and the outdoor environment temperature, wherein the calibration temperature comprises at least one of an indoor heat exchanger calibration temperature, an outdoor heat exchanger outlet calibration temperature and an exhaust calibration temperature;
determining the difference value according to the reference temperature and the calibration temperature.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1002, and also perform the following operations:
when the difference is larger than a preset threshold value, obtaining an adjusting parameter corresponding to the difference, wherein the adjusting parameter comprises at least one of the opening degree and the opening duration of the electronic expansion valve;
and controlling the electronic expansion valve according to the adjusting parameter so as to supplement the refrigerant.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1002, and also perform the following operations:
acquiring the amount of the refrigerant corresponding to the difference value;
and acquiring the adjusting parameters according to the amount of the refrigerant.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1002, and also perform the following operations:
and executing the step of acquiring the reference temperature of the air conditioner.
According to the scheme, whether the air conditioner needs to be supplemented with the refrigerant is judged by referring to the difference value between the temperature and the preset calibration temperature, so that the air conditioner is controlled to be subjected to refrigerant supplementing operation, whether the air conditioner is missing with refrigerant is automatically detected, and the phenomena of error and complex operation in manual detection are avoided.
Based on the hardware architecture, the embodiment of the refrigerant supplement control method of the air conditioner is provided.
Referring to fig. 2, a flow chart of a refrigerant supplement control method of an air conditioner according to a first embodiment of the present invention is schematically illustrated, and the refrigerant supplement control method of the air conditioner includes:
step S10, obtaining a reference temperature of the air conditioner, wherein the reference temperature comprises at least one of an indoor heat exchanger temperature, an outdoor heat exchanger outlet temperature and an exhaust temperature;
in the invention, the temperature sensors are arranged at the positions of the outlets of the indoor heat exchanger and the outdoor heat exchanger of the air conditioner and the position of the exhaust port of the compressor, so that the reference temperature of the air conditioner is obtained when the air conditioner normally operates, wherein the reference temperature comprises at least one of the temperature of the indoor heat exchanger, the temperature of the outdoor heat exchanger and the exhaust temperature. In this embodiment, the reference temperature may include an indoor heat exchanger temperature, an outdoor heat exchanger temperature, and a discharge air temperature. It should be noted that the temperature of the indoor heat exchanger may be the temperature of the middle portion of the indoor heat exchanger.
Step S20, acquiring a difference value between the reference temperature and a preset calibration temperature;
the method comprises the steps of acquiring a reference temperature and a preset calibration temperature when the air conditioner normally operates, wherein the calibration temperature corresponds to the reference temperature, the calibration temperature comprises at least one of an indoor heat exchanger calibration temperature, an outdoor heat exchanger outlet calibration temperature and an exhaust gas calibration temperature, calculating a difference value between the reference temperature and the calibration temperature, for example, calculating a difference value between the indoor heat exchanger temperature and the indoor heat exchanger calibration temperature, calculating a difference value between the outdoor heat exchanger outlet temperature and the outdoor heat exchanger outlet calibration temperature, and calculating a difference value between the exhaust gas temperature and the exhaust gas calibration temperature, wherein the calibration temperature is acquired by the air conditioner according to an ambient temperature corresponding to the reference temperature.
And step 30, controlling the air conditioner to perform refrigerant supplement operation when the difference value is larger than a preset threshold value.
The air conditioner judges whether the difference is larger than a preset threshold value or not according to at least one difference value of the difference value between the temperature of the indoor heat exchanger and the calibration temperature of the indoor heat exchanger, the difference value between the outlet temperature of the outdoor heat exchanger and the calibration temperature of the outlet of the outdoor heat exchanger and the difference value between the exhaust temperature and the calibration temperature of the exhaust gas, wherein the preset threshold value is preset by the air conditioner, for example, the preset threshold value is 1 or 2. And judging whether the air conditioner needs to supplement the refrigerant or not according to the relation between the difference value and the preset threshold value. When at least one of the difference between the temperature of the indoor heat exchanger and the calibration temperature of the indoor heat exchanger, the difference between the outlet temperature of the outdoor heat exchanger and the calibration temperature of the outlet of the outdoor heat exchanger, or the difference between the exhaust temperature and the exhaust calibration temperature is greater than a preset threshold value, the air conditioner needs to supplement a refrigerant, so that the air conditioner is controlled to perform the operation of refrigerant supplement; when the difference value is smaller than the preset threshold value, the air conditioner does not need to supplement the refrigerant. For example, when the preset threshold is 2, and the difference is greater than 2, the air conditioner is controlled to perform the operation of refrigerant supplement. And after the refrigerant is supplemented, detecting the reference temperature again, and judging whether the difference value is greater than the preset threshold value according to the obtained reference temperature so as to determine whether the operation of refrigerant supplementation is required until the difference value is less than the preset threshold value.
It should be noted that the air conditioner executes step S10 periodically, that is, obtains the reference temperature of the air conditioner. The step S10 is executed regularly, namely, after the air conditioner is supplemented with the refrigerant from the outside, the step of obtaining the reference temperature of the air conditioner is executed until the difference is smaller than the preset threshold, so that the refrigerant in the air conditioner meets the use requirement of normal operation.
In the technical scheme provided by this embodiment, the air conditioner obtains the difference between the reference temperature and the preset calibration temperature, determines that the air conditioner refrigerant is missing when the difference is greater than the preset threshold value, and controls the air conditioner to perform refrigerant supplement operation at the moment, so that refrigerant missing of the air conditioner is automatically detected, and the phenomena of errors and complex operation caused by manual detection are avoided.
Referring to fig. 3, fig. 3 is a second embodiment of a refrigerant supplement control method of an air conditioner according to the present invention, and based on the first embodiment, the control method of the air conditioner includes:
step S40, when the air conditioner meets the refrigerant supplement condition, controlling the air conditioner to run in a refrigeration mode for a preset time;
the air conditioner satisfying the refrigerant supplement condition may be that the air conditioner considers that the air conditioner satisfies the refrigerant supplement adjustment when the air conditioner receives the refrigerant supplement instruction, or that the air conditioner satisfies the refrigerant supplement condition when an accumulated operation duration of the air conditioner exceeds a preset duration, where the accumulated operation duration may be one year. When the air conditioner meets the refrigerant supplement condition, the air conditioner is controlled to operate in a refrigeration mode for a preset time, the preset time can be 20 minutes or 30 minutes, the pressure at the low-pressure valve in the air conditioner is reduced, an external refrigerant is communicated with the low-pressure valve through a connecting pipe, and the on-off and flow of the external refrigerant and the low-pressure valve are controlled by an electronic expansion valve. After the air conditioner runs for a preset time in a refrigeration mode, the flowing pressure of the refrigerant at the low-pressure valve is reduced, and the external refrigerant can be conveniently supplemented to the refrigerant through the electronic expansion valve.
It should be noted that, when the air conditioner receives the refrigerant supplement instruction, the air conditioner operates the refrigeration mode, then obtains the reference temperature and determines a difference between the reference temperature and the calibration temperature, and determines whether the air conditioner needs to supplement the refrigerant according to whether the difference is greater than a preset threshold. The refrigerant supplement instruction can be sent by a user or the air conditioner detects that the difference value between the reference temperature and the calibration value is greater than a preset threshold value, so that the refrigerant supplement instruction is sent to the air conditioner.
After the preset time period of operation, step S10 is executed, i.e. the reference temperature of the air conditioner is obtained.
In the technical scheme provided by this embodiment, when the air conditioner meets the refrigerant supplement condition, the air conditioner is controlled to operate in the refrigeration mode for a preset time, so as to reduce the refrigerant flow pressure at the low-pressure valve of the air conditioner, and then the operation of obtaining the reference temperature of the air conditioner and performing refrigerant supplement is performed, so that an external refrigerant can supplement the refrigerant to the air conditioner through the electronic expansion valve, and the difficulty of supplementing the refrigerant to the air conditioner is reduced.
Referring to fig. 4, fig. 4 is a third embodiment of the control method of the air conditioner according to the present invention, and based on the first and second embodiments, the step S20 includes:
step S21, obtaining the indoor environment temperature and the outdoor environment temperature of the environment where the air conditioner is located;
the air conditioner obtains the indoor environment temperature and the outdoor environment temperature corresponding to the reference temperature when obtaining the reference temperature by arranging the temperature sensors on the indoor unit and the outdoor unit.
Step S22, acquiring the calibration temperature according to the indoor environment temperature and the outdoor environment temperature, wherein the calibration temperature comprises at least one of an indoor heat exchanger calibration temperature, an outdoor heat exchanger outlet calibration temperature and an exhaust calibration temperature;
the air conditioner obtains a calibration temperature according to the obtained mapping relation between the indoor environment temperature and the outdoor environment temperature and the calibration temperature, wherein the calibration temperature comprises an indoor heat exchanger calibration temperature, an outdoor heat exchanger outlet calibration temperature and an exhaust calibration temperature. It is understood that the air conditioner may also obtain the calibration temperature corresponding to the temperature interval according to the temperature interval in which the indoor ambient temperature is located and the temperature interval in which the outdoor ambient temperature is located. For example, when the indoor ambient temperature is detected to be 18.5 ℃ and the outdoor ambient temperature is detected to be 22.5 ℃, the indoor ambient temperature is considered to be in a temperature range of 18 ℃ to 19 ℃ and the outdoor ambient temperature is considered to be in a temperature range of 22 ℃ to 23 ℃, and then the calibration value is obtained according to the mapping relationship between the temperature range of 18 ℃ to 19 ℃ and the temperature range of 22 ℃ to 23 ℃ and the calibration temperature.
Step S23, determining the difference value according to the reference temperature and the calibration temperature.
In this embodiment, the air conditioner obtains the reference temperature and simultaneously obtains the indoor ambient temperature and the outdoor ambient temperature corresponding to the reference temperature, obtains the corresponding calibration temperature according to the mapping relationship between the indoor ambient temperature and the outdoor ambient temperature and the calibration temperature, and calculates the difference between the indoor heat exchanger temperature and the indoor heat exchanger calibration temperature and/or calculates the difference between the outdoor heat exchanger outlet temperature and the outdoor heat exchanger outlet calibration temperature and/or calculates the difference between the exhaust gas temperature and the exhaust gas calibration temperature. And acquiring the calibration temperature mapped by the indoor environment temperature and the outdoor environment temperature according to the indoor environment temperature and the outdoor environment temperature corresponding to the reference temperature, wherein the obtained difference is more accurate, so that the actual judgment on the refrigerant of the air conditioner is more accurate.
Referring to fig. 5, fig. 5 is a fourth embodiment of a control method of an air conditioner, and the step S30 includes:
step S31, judging whether the difference value is larger than a preset threshold value;
step S32, when the difference is larger than a preset threshold value, obtaining an adjusting parameter corresponding to the difference, wherein the adjusting parameter comprises at least one of the opening degree and the opening duration of the electronic expansion valve;
when the difference value between the reference temperature and the calibration temperature is obtained, the air conditioner compares the difference value with a preset threshold value, the preset threshold value can be 1 or 2, when the difference value is larger than the preset threshold value, adjusting parameters corresponding to the difference value are obtained, the adjusting parameters comprise the opening degree of the electronic expansion valve and/or the opening duration of the electronic expansion valve, and the air conditioner adjusts and controls the opening degree and the opening duration of the electronic expansion valve according to the adjusting parameters. Specifically, the air conditioner determines how much external refrigerant the air conditioner needs to supplement under the current difference according to the mapping relationship between the difference and the refrigerant quantity, the speed of supplementing the refrigerant can be controlled by different specified opening degrees of the electronic expansion valve, and the opening degree of the electronic expansion valve and/or the opening time of the electronic expansion valve is determined according to the refrigerant quantity. For example, when the air conditioner needs to supplement the refrigerant from the outside, after the refrigerant with the corresponding amount is determined according to the difference value, the opening degree of the electronic expansion valve is determined according to the preset default opening time of the electronic expansion valve; or determining the opening time of the electronic expansion valve according to the preset default opening length of the electronic expansion valve; or directly determining the opening degree and the opening duration of the electronic expansion valve according to the amount of the refrigerant to be supplemented.
And step S33, controlling the electronic expansion valve according to the adjusting parameter to supplement the refrigerant.
The air conditioner controls the opening/closing of the electronic expansion valve, the opening degree of the electronic expansion valve and/or the opening duration of the electronic expansion valve by adjusting parameters, so that external refrigerants supplement the refrigerants to the low-pressure valve of the air conditioner through the connecting pipe. .
In this embodiment, when the difference is greater than the preset threshold, the amount of the refrigerant to be supplemented is determined according to a mapping relationship between the difference and the amount of the refrigerant to be supplemented, then an adjustment parameter of the electronic expansion valve is determined according to the amount of the refrigerant, the adjustment parameter includes at least one of an opening degree and an opening duration of the electronic expansion valve, and the air conditioner opens the electronic expansion valve to a specified opening degree and a specified opening duration according to the adjustment parameter. The external refrigerant is connected with the low-pressure valve through the connecting pipe, the connecting pipe is controlled to be on-off and flow through the electronic expansion valve, and the air conditioner controls the electronic expansion valve through adjusting parameters, so that the refrigerant is automatically supplemented, the trouble of supplementing the refrigerant by manual detection is avoided, and the user experience of the air conditioner is improved.
The invention also provides an air conditioner, which comprises a temperature sensor, a processor, a memory and a refrigerant supplement control program of the air conditioner, wherein the refrigerant supplement control program of the air conditioner is stored on the memory and can run on the processor, and the steps of the refrigerant supplement control method of the air conditioner in the embodiment are realized when the refrigerant supplement control program of the air conditioner is executed by the processor.
The present invention further provides a computer-readable storage medium, where a refrigerant supplement control program of an air conditioner is stored, and when the refrigerant supplement control program of the air conditioner is executed by a processor, the steps of the refrigerant supplement control method of the air conditioner according to the above embodiments are implemented.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. 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 (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. A refrigerant supplement control method of an air conditioner is characterized by comprising the following steps:
when the air conditioner meets the refrigerant supplement condition, controlling the air conditioner to operate in a refrigeration mode for a preset time;
acquiring a reference temperature of the air conditioner, wherein the reference temperature comprises at least one of an indoor heat exchanger temperature and an outdoor heat exchanger outlet temperature;
acquiring a difference value between the reference temperature and a corresponding preset calibration temperature, wherein the calibration temperature comprises an indoor heat exchanger calibration temperature and an outdoor heat exchanger outlet calibration temperature;
when at least one of the difference values is larger than a preset threshold value, controlling the air conditioner to perform refrigerant supplement operation;
the step of obtaining the difference between the reference temperature and a preset calibration temperature comprises:
acquiring the indoor environment temperature and the outdoor environment temperature of the environment where the air conditioner is located;
acquiring the calibration temperature according to the indoor environment temperature and the outdoor environment temperature;
determining the difference value according to the reference temperature and the calibration temperature;
the step of controlling the air conditioner to perform the refrigerant supplement operation comprises the following steps:
according to a preset mapping table between a preset difference value and the quantity of the refrigerant, obtaining the quantity of the refrigerant corresponding to the difference value, and determining corresponding adjusting parameters according to the quantity of the refrigerant, wherein the adjusting parameters comprise the opening degree and the opening duration of the electronic expansion valve;
and controlling the electronic expansion valve according to the adjusting parameter so as to supplement the refrigerant.
2. The refrigerant charge control method of an air conditioner according to claim 1, wherein the step of obtaining the reference temperature of the air conditioner is performed periodically.
3. An air conditioner, characterized in that the air conditioner comprises a processor, a memory and a refrigerant supplement control program of the air conditioner stored on the memory and capable of running on the processor, wherein the refrigerant supplement control program of the air conditioner realizes the steps of the refrigerant supplement control method of the air conditioner according to any one of claims 1-2 when being executed by the processor.
4. A storage medium storing a refrigerant supplement control program of an air conditioner, the refrigerant supplement control program of the air conditioner realizing the respective steps of the refrigerant supplement control method of the air conditioner according to any one of claims 1 to 2 when being executed by a processor.
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| CN110906506B (en) * | 2019-11-20 | 2021-04-13 | 珠海格力电器股份有限公司 | Refrigerant quantity detection method and device for air conditioner, storage medium and electronic equipment |
| CN111102680A (en) * | 2019-12-10 | 2020-05-05 | 宁波奥克斯电气股份有限公司 | Automatic refrigerant quantity calibration device and calibration method |
| CN111121224A (en) * | 2019-12-31 | 2020-05-08 | Tcl空调器(中山)有限公司 | Air conditioner control method, device, terminal and computer readable storage medium |
| CN113739348B (en) * | 2020-05-29 | 2023-05-26 | 广东美的制冷设备有限公司 | Refrigerant state detection method, air conditioner and storage medium |
| CN112611070B (en) * | 2020-12-28 | 2022-11-22 | 青岛海尔空调电子有限公司 | Air conditioner refrigerant cycle abnormity determining method and air conditioner |
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