CN117190395A - Method and device for detecting refrigerant leakage, electronic equipment and storage medium - Google Patents

Abstract

The application relates to the technical field of air conditioners, and discloses a method for detecting refrigerant leakage, which comprises the following steps: a first compressor frequency of the air conditioner in a first mode of operation and a first coil temperature in the first mode of operation are obtained. And converting the operation mode of the air conditioner into a preset second operation mode so as to adjust the coil temperature of the inner coil. And obtaining a second compressor frequency of the compressor under the condition that the second coil temperature is equal to the preset target coil temperature. And after the operation mode of the air conditioner is converted into a preset second operation mode, the temperature of the inner coil is the coil temperature of the inner coil. The target coil temperature and the center temperature of the first coil temperature are the coil temperatures of the inner coil in the case where the air conditioner is stably operated. And determining whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency. Thus, the accuracy of refrigerant leakage detection is improved. The application also discloses a device for detecting the refrigerant leakage, electronic equipment and a storage medium.

Description

Method and device for detecting refrigerant leakage, electronic equipment and storage medium

Technical Field

The present application relates to the technical field of air conditioners, and for example, to a method and apparatus for detecting refrigerant leakage, an electronic device, and a storage medium.

Background

Currently, air conditioners have become a necessity for people's daily life. The air conditioner changes the indoor temperature by performing heat conduction using a refrigerant cycle. Therefore, if the refrigerant leaks during the use of the air conditioner, the air conditioner is entirely deficient, which affects the adjustment of the indoor temperature of the air conditioner and may even cause the air conditioner to fail to operate. In the prior art, whether the temperature of the coil pipe of the inner coil pipe is in a normal range is directly used for judging the leakage condition of the refrigerant of the air conditioner. However, if the indoor environment temperature and the coil temperature of the inner coil differ greatly, the coil temperature of the inner coil will change drastically even if the refrigerant does not leak. Resulting in the coil temperature of the inner coil not being in the normal range. Thus, erroneous judgment of refrigerant leakage is easily caused.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: whether leakage occurs is determined directly through the coil temperature of the inner coil, misjudgment is easy to be carried out under the condition that the indoor environment temperature and the coil temperature of the inner coil are large in difference, and the accuracy is low.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a method and a device for detecting refrigerant leakage, electronic equipment and a storage medium, so as to improve the accuracy of refrigerant leakage detection.

In some embodiments, the method for detecting refrigerant leakage includes: a first compressor frequency of the air conditioner in a first mode of operation and a first coil temperature in the first mode of operation are obtained. And converting the operation mode of the air conditioner into a preset second operation mode so as to adjust the coil temperature of the inner coil. And obtaining a second compressor frequency of the compressor under the condition that the second coil temperature is equal to the preset target coil temperature. And after the operation mode of the air conditioner is converted into a preset second operation mode, the temperature of the inner coil is the coil temperature of the inner coil. The center temperature of the target coil temperature and the first coil temperature is a preset third coil temperature. The third coil temperature is the coil temperature of the inner coil in the case of stable operation of the air conditioner. And determining whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency.

In some embodiments, in a case that the control air conditioner is in a preset first operation mode, the method further includes: and controlling the fan of the internal machine to be in a closed state.

In some embodiments, the acquiring the first compressor frequency in the first mode of operation and the first coil temperature in the first mode of operation comprises: and controlling the air conditioner to be in a preset first operation mode. And after a preset first interval duration, acquiring the third compressor frequency of the compressor and the fourth coil temperature of the inner coil. A third compressor frequency of the compressor is determined as the first compressor frequency in the first mode of operation. A fourth coil temperature of the inner coil is determined as the first coil temperature in the first mode of operation.

In some embodiments, the converting the operation mode of the air conditioner to the preset second operation mode includes: and under the condition that the compressor is a variable frequency compressor, maintaining the input current of the compressor unchanged, and controlling the air conditioner to switch from a preset first operation mode to a preset second operation mode.

In some embodiments, the determining whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency includes: and under the condition that the first compressor frequency is greater than or equal to the second compressor frequency, determining that the refrigerant is not leaked. And/or determining refrigerant leakage in the case that the second compressor frequency is less than the first compressor frequency.

In some embodiments, after determining whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency, the method further includes: and under the condition of refrigerant leakage, controlling the air conditioner to enter an alarm mode.

In some embodiments, after the controlling the air conditioner enters the alarm mode, the method further includes: and controlling the air conditioner to stop running.

In some embodiments, the apparatus for detecting refrigerant leakage includes a processor and a memory storing program instructions, where the processor is configured to execute the method for detecting refrigerant leakage described above when the program instructions are executed.

In some embodiments, the electronic device includes the above device for detecting refrigerant leakage.

In some embodiments, the storage medium stores program instructions that, when executed, perform the method for detecting refrigerant leakage described above.

The method and device for detecting refrigerant leakage, the electronic equipment and the storage medium provided by the embodiment of the disclosure can realize the following technical effects: the method comprises the steps of obtaining a first compressor frequency of an air conditioner in a first operation mode and a first coil temperature of the air conditioner in the first operation mode, and then converting the operation mode of the air conditioner into a preset second operation mode. And under the condition that the second coil temperature after the operation mode of the air conditioner is converted into the preset second operation mode is equal to the preset target coil temperature, acquiring the second compressor frequency of the compressor, wherein the center temperature of the target coil temperature and the first coil temperature is a preset third coil temperature, and the third coil temperature is the coil temperature of the inner coil under the condition that the air conditioner stably operates. And then determining whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency. In this way, compared with the situation that whether the temperature of the coil is in the normal range or not is directly used for judging the leakage condition of the refrigerant of the air conditioner, the first compressor frequency of the air conditioner in the first operation mode and the first coil temperature of the air conditioner in the first operation mode are obtained, then the target coil temperature is determined according to the corresponding first coil temperature and the third coil temperature which are in stable operation in the first operation mode, so that the second compressor frequency of the compressor is obtained under the condition that the operation mode of the air conditioner is in the preset second operation mode and the second coil temperature is equal to the preset target coil temperature, and whether the refrigerant leaks is determined according to the first compressor frequency and the second compressor frequency. The influence of indoor environment temperature is reduced, and the accuracy of refrigerant leakage detection is improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

FIG. 1 is a schematic diagram of a method for detecting refrigerant leakage according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of another method for detecting refrigerant leakage provided by an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a method for controlling an air conditioner provided by an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of an apparatus for detecting refrigerant leakage according to an embodiment of the present disclosure;

fig. 6 is a schematic diagram of an electronic device provided by an embodiment of the present disclosure.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

The term "corresponding" may refer to an association or binding relationship, and the correspondence between a and B refers to an association or binding relationship between a and B.

The method for controlling the air conditioner is applied to electronic equipment. The electronic device obtains a first compressor frequency of the air conditioner in a first operation mode and a first coil temperature in the first operation mode. And converting the operation mode of the air conditioner into a preset second operation mode so as to adjust the coil temperature of the inner coil. And obtaining a second compressor frequency of the compressor under the condition that the coil temperature of the inner coil is equal to the preset target coil temperature. The center temperature of the preset target coil temperature and the first coil temperature is a preset third coil temperature. The preset third coil temperature is the coil temperature of the inner coil under the condition that the air conditioner stably operates. And then determining whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency. In this way, compared with the situation that whether the temperature of the coil is in the normal range or not is directly used for judging the leakage condition of the refrigerant of the air conditioner, the first compressor frequency of the air conditioner in the first operation mode and the first coil temperature of the air conditioner in the first operation mode are obtained, then the target coil temperature is determined according to the corresponding first coil temperature and the third coil temperature which are in stable operation in the first operation mode, so that the second compressor frequency of the compressor is obtained under the condition that the operation mode of the air conditioner is in the preset second operation mode and the second coil temperature is equal to the preset target coil temperature, and whether the refrigerant leaks is determined according to the first compressor frequency and the second compressor frequency. The influence of indoor environment temperature is reduced, and the accuracy of refrigerant leakage detection is improved.

The inner coil of the air conditioner is arranged in an inner machine of the air conditioner.

The air conditioner is also provided with a first temperature sensor, a second temperature sensor and a third temperature sensor. The first temperature sensor is used for detecting the indoor temperature to obtain the indoor temperature. The second temperature sensor is used for continuously detecting the coil temperature of the inner coil. The third temperature sensor is used for detecting the outdoor temperature to obtain the outdoor temperature.

Referring to fig. 1, an embodiment of the disclosure provides a method for detecting refrigerant leakage, including:

in step S101, the electronic device obtains a first compressor frequency of the air conditioner in a first operation mode and a first coil temperature in the first operation mode.

Step S102, the electronic equipment converts the operation mode of the air conditioner into a preset second operation mode so as to adjust the coil temperature of the inner coil.

Step S103, the electronic device obtains a second compressor frequency of the compressor in a case where the second coil temperature is equal to a preset target coil temperature. And after the operation mode of the air conditioner is converted into a preset second operation mode, the temperature of the inner coil is the coil temperature of the inner coil. The center temperature of the target coil temperature and the first coil temperature is a preset third coil temperature. The third coil temperature is the coil temperature of the inner coil in the case of stable operation of the air conditioner.

Step S104, the electronic equipment determines whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency.

By adopting the method for detecting refrigerant leakage provided by the embodiment of the disclosure, the first compressor frequency of the air conditioner in the first operation mode and the first coil temperature in the first operation mode are obtained, and then the operation mode of the air conditioner is converted into the preset second operation mode. And under the condition that the second coil temperature after the operation mode of the air conditioner is converted into the preset second operation mode is equal to the preset target coil temperature, acquiring the second compressor frequency of the compressor, wherein the center temperature of the target coil temperature and the first coil temperature is a preset third coil temperature, and the third coil temperature is the coil temperature of the inner coil under the condition that the air conditioner stably operates. And then determining whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency. In this way, compared with the situation that whether the temperature of the coil is in the normal range or not is directly used for judging the leakage condition of the refrigerant of the air conditioner, the first compressor frequency of the air conditioner in the first operation mode and the first coil temperature of the air conditioner in the first operation mode are obtained, then the target coil temperature is determined according to the corresponding first coil temperature and the third coil temperature which are in stable operation in the first operation mode, so that the second compressor frequency of the compressor is obtained under the condition that the operation mode of the air conditioner is in the preset second operation mode and the second coil temperature is equal to the preset target coil temperature, and whether the refrigerant leaks is determined according to the first compressor frequency and the second compressor frequency. The influence of indoor environment temperature is reduced, and the accuracy of refrigerant leakage detection is improved.

Further, the preset first operation mode is a heating module or a cooling mode. The preset second operation mode is a refrigeration mode or a heating mode. The preset first operation mode is different from the preset second operation mode.

In some embodiments, in the case where the preset first operation mode is a heating module, the preset second operation mode is a cooling mode. In the case where the air conditioner is switched from the heating mode to the cooling mode, the coil temperature of the inner coil is lowered. In the case that the preset first operation mode is the cooling mode, the preset second operation mode is the heating mode. In the case where the air conditioner is switched from the cooling mode to the heating mode, the coil temperature of the inner coil increases.

Further, the second coil temperature is obtained by: the electronic device continuously detects the coil temperature of the inner coil by using a second temperature sensor to obtain a second coil temperature.

In some embodiments, the electronics detect the coil temperature of the inner coil with a second temperature sensor at predetermined second interval durations to obtain a second coil temperature. The continuous detection of the coil temperature of the inner coil is realized.

In some embodiments, the electronics detect the coil temperature of the inner coil with a second temperature sensor at predetermined second interval durations to obtain a second coil temperature. And then obtaining a second compressor frequency of the compressor in the event that the newly obtained second coil temperature is equal to the preset target coil temperature.

Further, the third coil temperature is obtained by the following method: under the condition that the air conditioner is started, the electronic equipment acquires the indoor temperature detected by the first temperature sensor. The electronic equipment controls the frequency of the compressor according to the indoor temperature and the preset target temperature so as to adjust the indoor temperature. And under the condition that the indoor temperature is equal to the target temperature, the electronic equipment determines that the air conditioner stably operates. And the electronic equipment acquires the temperature of the third coil pipe under the condition of determining that the air conditioner stably operates. The third coil temperature is the coil temperature of the inner coil detected by the second temperature sensor in the case of determining that the air conditioner is stably operated. The target temperature is a demand temperature set by the user.

Therefore, under the condition that the indoor temperature is equal to the demand temperature set by a user, the air conditioner does not need to adjust the indoor temperature, so that the energy of gas-liquid conversion of the refrigerant in the air conditioner is minimized. So as to obtain a third coil temperature and determine a target coil temperature from the third coil temperature. And under the condition that the temperature of the second coil pipe is equal to the preset target coil pipe temperature, acquiring the second compressor frequency of the compressor, and determining whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency. Thereby improving the accuracy of refrigerant leakage detection.

Further, the electronic device controls the frequency of the compressor according to the indoor temperature and a preset target temperature, and the electronic device comprises: the electronic equipment obtains a first temperature difference value between the indoor temperature and a preset target temperature. The electronic device determines a temperature difference range in which the first temperature difference is located. And the electronic equipment performs table lookup operation on the temperature difference range by using a preset press frequency database to obtain the target compressor frequency corresponding to the temperature difference range. The preset press frequency database stores the corresponding relation between the temperature difference range and the target compressor frequency. The electronic device sets the frequency of the compressor to the target compressor frequency.

Further, the air conditioner is also provided with a throttle valve. The throttle valve is used for controlling the flow of the refrigerant in the inner coil. After the electronic device sets the frequency of the compressor to the target compressor frequency, the electronic device further includes: the electronic device obtains the outdoor temperature detected by the third temperature sensor. The electronic equipment performs table lookup operation on the outdoor temperature, the target temperature and the indoor temperature by using a preset coil temperature database, and obtains coil temperature ranges corresponding to the outdoor temperature, the target temperature and the indoor temperature. The corresponding relation between the outdoor temperature, the target temperature and the indoor temperature and the coil temperature range is stored in a preset coil temperature database. The electronics acquire a fifth coil temperature. The fifth coil temperature is the coil temperature of the inner coil detected by the second temperature sensor after the compressor frequency is set to the target compressor frequency. In the event that the fifth coil temperature is not within the coil temperature range, the electronics adjust the throttle valve to bring the sixth coil temperature within the coil temperature range. And the sixth coil temperature is the coil temperature of the inner coil detected by the second temperature sensor after the electronic equipment adjusts the throttle valve. In some embodiments, the operating condition of the inner coil is characterized as normal when the coil temperature of the inner coil is within the coil temperature range.

In some embodiments, the target coil temperature and the center temperature of the first coil temperature are a preset third coil temperature. That is, the absolute value of the first difference between the third coil temperature and the first coil temperature is equal to the absolute value of the second difference between the target coil temperature and the third coil temperature. For example: in the case where the first operation mode is the heating mode and the second operation mode is the cooling mode, the absolute value of the first difference between the third coil temperature and the first coil temperature is the third difference between the first coil temperature and the third coil temperature. The absolute value of the second difference between the target coil temperature and the third coil temperature is a fourth difference between the third coil temperature and the target coil temperature. That is, the third difference between the first coil temperature and the third coil temperature is equal to the fourth difference between the third coil temperature and the target coil temperature. Also for example: in the case where the first operation mode is the cooling mode and the second operation mode is the heating mode, an absolute value of the first difference between the third coil temperature and the first coil temperature is a fifth difference between the third coil temperature and the first coil temperature. The absolute value of the second difference between the target coil temperature and the third coil temperature is a sixth difference between the target coil temperature and the third coil temperature. That is, the fifth difference between the third coil temperature and the first coil temperature is equal to the sixth difference between the third coil temperature and the target coil temperature and the third coil temperature.

Further, under the condition that the electronic device controls the air conditioner to be in a preset first operation mode, the electronic device further comprises: and controlling the fan of the internal machine to be in a closed state. Thus, the temperature of the coil of the inner coil is reduced as the fan is turned on to cause the inner coil to exchange energy with the air. The fan of the inner machine is closed, the influence of air on the temperature of the coil pipe of the inner coil pipe can be reduced, and therefore the accuracy of refrigerant leakage detection is improved.

Further, the electronic device obtains a first compressor frequency in a first operating mode and a first coil temperature in the first operating mode, including: after a preset first interval duration, the electronic device obtains a third compressor frequency of the compressor and a fourth coil temperature of the inner coil. The electronic device determines a third compressor frequency of the compressor as the first compressor frequency in the first mode of operation. The electronics determine a fourth coil temperature of the inner coil as the first coil temperature in the first mode of operation. For example: the first interval is 3 minutes to 5 minutes long. Therefore, the air conditioner can be operated for a certain period of time in the first operation mode, and the energy of gas-liquid conversion of the refrigerant of the air conditioner in the first operation mode is stable. Therefore, the fluctuation of the first compressor frequency and the first coil temperature after the first interval duration is preset is smaller, and the energy of the gas-liquid conversion of the refrigerant of the air conditioner in the first operation mode can be more accurately reflected. Thereby facilitating determination of a target coil temperature from the first coil temperature. And under the condition that the temperature of the second coil pipe is equal to the preset target coil pipe temperature, acquiring the second compressor frequency of the compressor, and determining whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency. Thereby improving the accuracy of refrigerant leakage detection.

Optionally, the electronic device converts the operation mode of the air conditioner into a preset second operation mode, including: and under the condition that the compressor is a variable frequency compressor, the electronic equipment controls the air conditioner to be switched from a preset first operation mode to a preset second operation mode.

Optionally, the electronic device converts the operation mode of the air conditioner into a preset second operation mode, including: and under the condition that the compressor is a variable frequency compressor, the electronic equipment maintains the input current of the compressor unchanged and controls the air conditioner to be switched from a preset first operation mode to a preset second operation mode. In this way, the energy input to the compressor is unchanged, as the input current remains unchanged. Therefore, the energy of the gas-liquid conversion of the refrigerant in the first operation mode of the air conditioner is the same as the energy of the gas-liquid conversion of the refrigerant in the second operation mode. Therefore, the influence of the energy of refrigerant gas-liquid conversion on the temperature of the coil pipe and the frequency of the compressor is reduced, and the accuracy of refrigerant leakage detection is improved.

In some embodiments, when the compressor is a fixed-frequency compressor, the start and stop of compression are realized by controlling the start and stop of the fixed-frequency compressor, that is, the input current of the fixed-frequency compressor is fixed when the fixed-frequency compressor is started. The input current of the fixed-frequency compressor can be regarded as fixed in a refrigerating mode or a heating mode. Under the condition that the compressor is a variable frequency compressor, the current of the variable frequency compressor is controlled by an instruction of a main control board. Therefore, in the case that the compressor is a variable frequency compressor, the command of the main control board for controlling the compressor current cannot be changed, so that the input current of the compressor is maintained unchanged, and the air conditioner is controlled to be converted from a preset first operation mode to a preset second operation mode.

Further, the electronic device determines whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency, including: and under the condition that the first compressor frequency is greater than or equal to the second compressor frequency, the electronic equipment determines that the refrigerant is not leaked. And/or, the electronic device determines that the refrigerant leaks when the second compressor frequency is less than the first compressor frequency. In this way, in the case that the first compressor frequency is greater than or equal to the second compressor frequency, it is determined that the refrigerant is not leaked. And determining refrigerant leakage under the condition that the second compressor frequency is smaller than the first compressor frequency. In this way, whether the refrigerant leaks or not can be accurately determined by the magnitude relation between the first compressor frequency and the second compressor frequency. The accuracy of refrigerant leakage detection is improved.

In some embodiments, since the target coil temperature and the center temperature of the first coil temperature are the preset third coil temperature, i.e., the temperature difference between the third coil temperature in the case of steady operation and the first coil temperature of the first mode of operation and the temperature difference between the third coil temperature in the case of steady operation and the target coil temperature are equal. Therefore, it is determined that the refrigerant inside the air conditioner does not exchange energy with the air outside the air conditioner. The refrigerant exchanges energy only between the outer machine condenser and the inner machine evaporator through the compressor. Meanwhile, the input current of the compressor is not changed, and the energy of the gas-liquid conversion of the refrigerant in the first operation mode of the air conditioner is the same as the energy of the gas-liquid conversion of the refrigerant in the second operation mode. If the refrigerant leaks, the weight of the refrigerant of the air conditioner in the second operation mode is lower than that of the refrigerant of the air conditioner in the first operation mode. According to the law of conservation of energy, the compressor needs to perform work by frequency boosting, so that the energy of gas-liquid conversion of the refrigerant in the second operation mode of the air conditioner is the same as the energy of gas-liquid conversion of the refrigerant in the first operation mode. Therefore, if the refrigerant leaks, the frequency of the compressor increases. By comparing the first compressor frequency and the second compressor frequency, it can be determined whether the refrigerant leaks.

Referring to fig. 2, another method for detecting refrigerant leakage according to an embodiment of the present disclosure includes:

step S201, the electronic device controls the air conditioner to be in a preset first operation mode, and controls the internal machine fan to be in a closed state.

Step S202, after a preset first interval duration, the electronic equipment acquires a third compressor frequency of the compressor and a fourth coil temperature of the inner coil.

Step S203, the electronic device determines a third compressor frequency of the compressor as a first compressor frequency in the first operation mode; the fourth coil temperature of the inner coil is determined as the second coil temperature in the first mode of operation.

In step S204, the electronic device maintains the input current of the compressor unchanged and controls the air conditioner to switch from the preset first operation mode to the preset second operation mode when the compressor is a variable frequency compressor.

Step S205, the electronic equipment acquires a second compressor frequency of the compressor under the condition that the second coil temperature is equal to a preset target coil temperature; the second coil temperature is the coil temperature of the inner coil after the operation mode of the air conditioner is converted into a preset second operation mode; the center temperature of the target coil temperature and the first coil temperature is a preset third coil temperature; the third coil temperature is the coil temperature of the inner coil in the case of stable operation of the air conditioner.

Step S206, the electronic equipment determines that the refrigerant is not leaked under the condition that the frequency of the first compressor is greater than or equal to the frequency of the second compressor; and/or determining refrigerant leakage in the case that the second compressor frequency is less than the first compressor frequency.

By adopting the method for detecting refrigerant leakage provided by the embodiment of the disclosure, the air conditioner is controlled to be in the preset first operation mode, and the fan of the internal machine is controlled to be in the closed state. After the first interval period, a third compressor frequency and a fourth coil temperature of the compressor, i.e., a first compressor frequency and a first coil temperature of the air conditioner in a first mode of operation, are obtained. And then controlling the air conditioner to switch from the preset first operation mode to the preset second operation mode under the condition that the input current of the compressor is kept unchanged. And obtaining a second compressor frequency of the compressor if the coil temperature of the inner coil is equal to the preset target coil temperature. The center temperature of the target coil temperature and the first coil temperature is a preset third coil temperature; the third coil temperature is the coil temperature of the inner coil in the case of stable operation of the air conditioner. Under the condition that the frequency of the first compressor is greater than or equal to that of the second compressor, determining that the refrigerant is not leaked; and/or determining refrigerant leakage in the case that the second compressor frequency is less than the first compressor frequency. In this way, compared with the situation that whether the temperature of the coil is in the normal range or not is directly used for judging the leakage condition of the refrigerant of the air conditioner, the first compressor frequency and the first coil temperature of the air conditioner in the first operation mode and the internal machine fan in the closed state are obtained, then the target coil temperature is determined according to the first coil temperature and the third coil temperature which stably operates, so that the second compressor frequency of the compressor is obtained under the condition that the operation mode of the air conditioner is in the preset second operation mode and the second coil temperature is equal to the preset target coil temperature, and whether the refrigerant leaks is determined according to the first compressor frequency and the second compressor frequency. The influence of the outer air conditioner of the air conditioner on the inner coil pipe is reduced, the influence of the indoor environment temperature is also reduced, and the accuracy of refrigerant leakage detection is improved.

Further, after the electronic device determines whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency, the electronic device further includes: under the condition of refrigerant leakage, the electronic equipment controls the air conditioner to enter an alarm mode. In this way, the alarm can be given under the condition of refrigerant leakage, so that a user can maintain the air conditioner.

Further, the air conditioner is provided with a voice module. The electronic equipment controls the air conditioner to enter an alarm mode, and the electronic equipment comprises: the electronic equipment controls the air conditioner to send out preset alarm voice by utilizing the voice module so as to remind a user of refrigerant leakage of the air conditioner. And/or the air conditioner sends preset alarm information to a preset user terminal so as to trigger the user terminal to remind the user of refrigerant leakage of the air conditioner. In some embodiments, the user terminal comprises a mobile phone, tablet, smart watch, computer, or the like capable of interacting with the user.

Further, after the electronic device controls the air conditioner to enter the alarm mode, the electronic device further comprises: the electronic equipment controls the air conditioner to stop running. Thus, the probability of damage to the compressor of the air conditioner caused by leakage of the refrigerant can be reduced. Thereby reducing the maintenance cost for the user.

As shown in connection with fig. 3, an embodiment of the present disclosure provides a method for controlling an air conditioner, including:

In step S301, the electronic device controls the air conditioner to be in a preset first operation mode, and then obtains a first compressor frequency in the first operation mode and a first coil temperature in the first operation mode.

In step S302, the electronic device switches the operation mode of the air conditioner to a preset second operation mode to adjust the coil temperature of the inner coil.

Step S303, the electronic equipment acquires a second compressor frequency of the compressor under the condition that the second coil temperature is equal to a preset target coil temperature; the second coil temperature is the coil temperature of the inner coil after the operation mode of the air conditioner is converted into a preset second operation mode; the center temperature of the target coil temperature and the first coil temperature is a preset third coil temperature; the third coil temperature is the coil temperature of the inner coil in the case of stable operation of the air conditioner.

In step S304, the electronic device determines whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency.

Step S305, the electronic device controls the air conditioner to enter an alarm mode under the condition of refrigerant leakage.

In step S306, the electronic device controls the air conditioner to stop running.

By adopting the method for detecting refrigerant leakage provided by the embodiment of the disclosure, the first compressor frequency of the air conditioner in the first operation mode and the first coil temperature in the first operation mode are obtained, and then the operation mode of the air conditioner is converted into the preset second operation mode. And under the condition that the second coil temperature after the operation mode of the air conditioner is converted into the preset second operation mode is equal to the preset target coil temperature, acquiring the second compressor frequency of the compressor, wherein the center temperature of the target coil temperature and the first coil temperature is a preset third coil temperature, and the third coil temperature is the coil temperature of the inner coil under the condition that the air conditioner stably operates. And determining whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency. And then under the condition of refrigerant leakage, controlling the air conditioner to enter an alarm mode, and controlling the air conditioner to stop running. In this way, compared with the situation that whether the temperature of the coil is in the normal range or not is directly used for judging the leakage condition of the refrigerant of the air conditioner, the first compressor frequency of the air conditioner in the first operation mode and the first coil temperature of the air conditioner in the first operation mode are obtained, then the target coil temperature is determined according to the corresponding first coil temperature and the third coil temperature which are in stable operation in the first operation mode, so that the second compressor frequency of the compressor is obtained under the condition that the operation mode of the air conditioner is in the preset second operation mode and the second coil temperature is equal to the preset target coil temperature, and whether the refrigerant leaks is determined according to the first compressor frequency and the second compressor frequency. The influence of indoor environment temperature is reduced, and the accuracy of refrigerant leakage detection is improved. Meanwhile, the air conditioner can be timely notified to the user and closed under the condition of refrigerant leakage, so that the user can maintain the air conditioner in time, the fault probability of the air conditioner for continuous operation under the condition of refrigerant leakage is reduced, and the maintenance cost of the user is reduced.

As shown in connection with fig. 4, an embodiment of the present disclosure provides another method for controlling an air conditioner, including:

in step S401, when the air conditioner is turned on, the electronic device acquires the indoor temperature detected by the first temperature sensor. Step S402 is then performed.

In step S402, the electronic device controls the frequency of the compressor according to the indoor temperature and the preset target temperature, so as to adjust the indoor temperature. Step S403 is then performed.

In step S403, the electronic device determines that the air conditioner is stably operated in the case that the indoor temperature is equal to the target temperature. Step S404 is then performed.

In step S404, the electronic device obtains the third coil temperature under the condition that it is determined that the air conditioner is stably operated. The third coil temperature is the coil temperature of the inner coil detected by the second temperature sensor in the case of determining that the air conditioner is stably operated. Step S405 is then performed.

Step S405, the electronic device controls the air conditioner to be in a preset heating mode, and controls the internal machine fan to be in a closed state. Step S406 is then performed.

In step S406, the electronic device obtains a first compressor frequency in the first operation mode and a first coil temperature in the first operation mode. Then step S407 is performed.

In step S407, when the compressor is a variable frequency compressor, the electronic device maintains the input current of the compressor unchanged and controls the air conditioner to switch from the heating mode to the cooling mode. Step S408 is then performed.

In step S408, the electronic device obtains a second compressor frequency of the compressor if the second coil temperature is equal to the preset target coil temperature. The second coil temperature is the coil temperature of the inner coil after the operation mode of the air conditioner is converted into a preset second operation mode. Then step S409 is performed.

In step S409, the electronic device determines whether the first compressor frequency is greater than or equal to the second compressor frequency. If yes, go to step S410; if not, go to step S411.

In step S410, the electronic device determines that the refrigerant is not leaked.

In step S411, the electronic device determines refrigerant leakage. Step S412 is then performed.

In step S412, the electronic device controls the air conditioner to enter the alarm mode under the condition of refrigerant leakage. Step S413 is then performed.

In step S413, the electronic device controls the air conditioner to stop operating.

By adopting the method for detecting refrigerant leakage, which is provided by the embodiment of the disclosure, the indoor temperature detected by the first temperature sensor is obtained by controlling the air conditioner, and the frequency of the compressor is adjusted according to the indoor temperature and the preset target temperature so as to adjust the indoor temperature. And then determining that the air conditioner stably operates under the condition that the indoor temperature is equal to the target temperature, and acquiring the third coil temperature of the inner coil detected by the second temperature sensor under the condition that the air conditioner stably operates. And starting the air conditioner in a preset heating mode, and controlling the fan of the internal machine to be closed so as to acquire the first compressor frequency in the first running mode and the first coil temperature in the first running mode. And then, under the condition that the compressor is a variable frequency compressor, the input current of the compressor is maintained unchanged, and the air conditioner is controlled to be switched from a heating mode to a refrigerating mode. And after the operation mode of the air conditioner is converted into a preset second operation mode, acquiring a second compressor frequency of the compressor under the condition that the coil temperature of the inner coil is equal to a preset target coil temperature. The center temperature of the target coil temperature and the first coil temperature is a preset third coil temperature. And then determining that the refrigerant is not leaked under the condition that the first compressor frequency is greater than or equal to the second compressor frequency. Otherwise, determining the refrigerant leakage, and controlling the air conditioner to enter an alarm mode and stop running. Therefore, compared with the situation that whether the temperature of the coil pipe is in the normal range or not to judge the leakage condition of the refrigerant of the air conditioner, the air conditioner is controlled to stably operate, then the air conditioner is controlled to heat, and the first compressor frequency and the first coil pipe temperature in the first operation mode when the air conditioner heats are obtained. And controlling the air conditioner to refrigerate, and under the condition that the operation mode of the air conditioner is in a preset second operation mode and the temperature of the second coil pipe is equal to the preset target coil pipe temperature, acquiring the second compressor frequency of the compressor, and accurately determining whether the refrigerant leaks or not according to the magnitude relation between the first compressor frequency and the second compressor frequency. The accuracy of refrigerant leakage detection is improved. Meanwhile, the user is informed and the air conditioner is closed in time under the condition that the refrigerant leaks, so that the user can maintain the air conditioner in time, the fault probability of the air conditioner for continuous operation under the condition that the refrigerant leaks is reduced, and the maintenance cost of the user is reduced.

Referring to fig. 5, an embodiment of the present disclosure provides an apparatus 5 for detecting refrigerant leakage, including a processor (processor) 1 and a memory (memory) 2. Optionally, the apparatus may further comprise a communication interface (Communication Interface) 3 and a bus 4. The processor 1, the communication interface 3 and the memory 2 can communicate with each other through the bus 4. The communication interface 3 may be used for information transmission. The processor 1 may call the logic instructions in the memory 2 to execute the method for detecting refrigerant leakage of the above embodiment.

By adopting the device for detecting refrigerant leakage, which is provided by the embodiment of the disclosure, the operation mode of the air conditioner is converted into the preset second operation mode by acquiring the first compressor frequency of the air conditioner in the first operation mode and the first coil temperature in the first operation mode. And under the condition that the second coil temperature after the operation mode of the air conditioner is converted into the preset second operation mode is equal to the preset target coil temperature, acquiring the second compressor frequency of the compressor, wherein the center temperature of the target coil temperature and the first coil temperature is a preset third coil temperature, and the third coil temperature is the coil temperature of the inner coil under the condition that the air conditioner stably operates. And then determining whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency. In this way, compared with the situation that whether the temperature of the coil is in the normal range or not is directly used for judging the leakage condition of the refrigerant of the air conditioner, the first compressor frequency of the air conditioner in the first operation mode and the first coil temperature of the air conditioner in the first operation mode are obtained, then the target coil temperature is determined according to the corresponding first coil temperature and the third coil temperature which are in stable operation in the first operation mode, so that the second compressor frequency of the compressor is obtained under the condition that the operation mode of the air conditioner is in the preset second operation mode and the second coil temperature is equal to the preset target coil temperature, and whether the refrigerant leaks is determined according to the first compressor frequency and the second compressor frequency. The influence of indoor environment temperature is reduced, and the accuracy of refrigerant leakage detection is improved.

Further, the logic instructions in the memory 2 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.

The memory 2 serves as a computer readable storage medium for storing a software program, a computer executable program, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 1 executes the program instructions/modules stored in the memory 2 to perform functional applications and data processing, i.e., to implement the method for detecting refrigerant leakage in the above-described embodiments.

The memory 2 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for a function; the storage data area may store data created according to the use of the terminal device, etc. Further, the memory 2 may include a high-speed random access memory, and may also include a nonvolatile memory.

As shown in connection with fig. 6, an embodiment of the present disclosure provides an electronic device 6, comprising: an electronic device body, and the above-mentioned device 5 for detecting refrigerant leakage. The device 5 for detecting leakage of the refrigerant is mounted to the electronic device body. The mounting relationship described herein is not limited to being placed inside the electronic device, but also includes mounting connections with other components of the electronic device, including but not limited to physical connections, electrical connections, or signal transmission connections, etc. Those skilled in the art will appreciate that the device 5 for detecting refrigerant leakage may be adapted to a viable electronic device body, thereby implementing other viable embodiments.

By adopting the electronic equipment provided by the embodiment of the disclosure, the operation mode of the air conditioner is converted into the preset second operation mode by acquiring the first compressor frequency of the air conditioner in the first operation mode and the first coil temperature in the first operation mode. And under the condition that the second coil temperature after the operation mode of the air conditioner is converted into the preset second operation mode is equal to the preset target coil temperature, acquiring the second compressor frequency of the compressor, wherein the center temperature of the target coil temperature and the first coil temperature is a preset third coil temperature, and the third coil temperature is the coil temperature of the inner coil under the condition that the air conditioner stably operates. And then determining whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency. In this way, compared with the situation that whether the temperature of the coil is in the normal range or not is directly used for judging the leakage condition of the refrigerant of the air conditioner, the first compressor frequency of the air conditioner in the first operation mode and the first coil temperature of the air conditioner in the first operation mode are obtained, then the target coil temperature is determined according to the corresponding first coil temperature and the third coil temperature which are in stable operation in the first operation mode, so that the second compressor frequency of the compressor is obtained under the condition that the operation mode of the air conditioner is in the preset second operation mode and the second coil temperature is equal to the preset target coil temperature, and whether the refrigerant leaks is determined according to the first compressor frequency and the second compressor frequency. The influence of indoor environment temperature is reduced, and the accuracy of refrigerant leakage detection is improved.

In some embodiments, the electronic device is an air conditioner or a server. In the case that the electronic device is a server, the electronic device acquires the frequency of each compressor, the outdoor temperature, the indoor temperature and the second temperature sensor through the air conditioner to detect the temperature of each coil.

Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for detecting refrigerant leakage.

The computer readable storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb (universal serial bus), a removable hard disk, a Read-only Memory (ROM), a random access Memory (RAM, randomAccess Memory), a magnetic disk, or an optical disk, or a transitory storage medium.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this disclosure is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in the present disclosure, the terms "comprises," "comprising," and/or variations thereof, mean that the recited features, integers, steps, operations, elements, and/or components are present, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.

Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. 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). 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. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. 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 which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims (10)

1. A method for detecting refrigerant leakage, comprising:

acquiring a first compressor frequency of an air conditioner in a first operation mode and a first coil temperature in the first operation mode;

converting the operation mode of the air conditioner into a preset second operation mode so as to adjust the coil temperature of the inner coil;

acquiring a second compressor frequency of the compressor under the condition that the second coil temperature is equal to a preset target coil temperature; the second coil temperature is the coil temperature of the inner coil after the operation mode of the air conditioner is converted into a preset second operation mode; the center temperature of the target coil temperature and the first coil temperature is a preset third coil temperature; the third coil temperature is the coil temperature of the inner coil under the condition that the air conditioner stably operates;

and determining whether the refrigerant leaks according to the first compressor frequency and the second compressor frequency.

2. The method of claim 1, wherein controlling the air conditioner in the preset first operation mode further comprises:

and controlling the fan of the internal machine to be in a closed state.

3. The method of claim 1, wherein acquiring the first compressor frequency in the first mode of operation and the first coil temperature in the first mode of operation comprises:

Controlling the air conditioner to be in a preset first operation mode;

after a preset first interval duration, acquiring a third compressor frequency of the compressor and a fourth coil temperature of the inner coil;

determining a third compressor frequency of the compressor as a first compressor frequency in the first mode of operation; a fourth coil temperature of the inner coil is determined as the first coil temperature in the first mode of operation.

4. The method of claim 1, wherein converting the operation mode of the air conditioner to the preset second operation mode comprises:

and under the condition that the compressor is a variable frequency compressor, maintaining the input current of the compressor unchanged, and controlling the air conditioner to switch from a preset first operation mode to a preset second operation mode.

5. The method of claim 1, wherein determining whether the refrigerant leaks based on the first compressor frequency and the second compressor frequency comprises:

under the condition that the frequency of the first compressor is greater than or equal to that of the second compressor, determining that the refrigerant is not leaked; and/or the number of the groups of groups,

and determining refrigerant leakage under the condition that the second compressor frequency is smaller than the first compressor frequency.

6. The method of any one of claims 1 to 5, wherein determining whether the refrigerant leaks based on the first compressor frequency and the second compressor frequency further comprises:

And under the condition of refrigerant leakage, controlling the air conditioner to enter an alarm mode.

7. The method of claim 6, wherein after controlling the air conditioner to enter the alert mode, further comprising:

and controlling the air conditioner to stop running.

8. An apparatus for detecting refrigerant leakage comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for detecting refrigerant leakage according to any one of claims 1 to 7 when the program instructions are run.

9. An electronic device comprising the apparatus for detecting refrigerant leakage according to claim 8.

10. A storage medium storing program instructions which, when executed, perform the method for detecting refrigerant leaks of any one of claims 1 to 7.