CN111397087B - Control method and device of air conditioner, electronic equipment and storage medium - Google Patents
Control method and device of air conditioner, electronic equipment and storage medium Download PDFInfo
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- CN111397087B CN111397087B CN202010220149.6A CN202010220149A CN111397087B CN 111397087 B CN111397087 B CN 111397087B CN 202010220149 A CN202010220149 A CN 202010220149A CN 111397087 B CN111397087 B CN 111397087B
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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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00978—Control systems or circuits characterised by failure of detection or safety means; Diagnostic methods
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Abstract
The invention discloses a control method and a control device of an air conditioner, the air conditioner, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring a first refrigerant concentration of an air inlet of an indoor unit in an air conditioner; determining that the first refrigerant concentration is greater than a first threshold value, controlling an outdoor unit of the air conditioner to stop and a fan in the indoor unit to reversely rotate, and acquiring a second refrigerant concentration of the air inlet after the fan reversely rotates for a preset time; and determining a refrigerant leakage position according to the first refrigerant concentration and the second refrigerant concentration. The invention can determine whether the refrigerant of the air conditioner leaks or not through the magnitude relation between the first refrigerant concentration and the first threshold value, and can determine the refrigerant leakage position through detecting the first refrigerant concentration and the second refrigerant concentration when the refrigerant leaks, so that a user or a maintenance worker can find out the component with the refrigerant leakage in time, the component is convenient to replace or maintain pertinently, and the air conditioner can be widely applied to the technical field of air conditioners.
Description
Technical Field
The present invention relates to the field of air conditioners, and in particular, to a method and an apparatus for controlling an air conditioner, an electronic device, and a storage medium.
Background
At present, the air conditioner becomes an indispensable household appliance in human life. Generally, the air conditioner is filled with refrigerant before leaving the factory, and then the indoor unit and the outdoor unit are connected by using a refrigerant pipe.
However, the existing indoor or vehicle-mounted air conditioner is installed in a closed environment, and when a refrigerant leaks, the content of oxygen in the environment is easily insufficient, so that people sleeping in the room or the vehicle are easily suffocated, and potential safety hazards exist. At present, whether the refrigerant of the air conditioner leaks or not can be judged by detecting the concentration of the refrigerant, but the specific position condition of the leakage cannot be detected, and the timely and targeted measures cannot be taken.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a control method and device of an air conditioner, the air conditioner, electronic equipment and a storage medium, which can detect the leakage position of a refrigerant, thereby timely maintaining the air conditioner.
A control method of an air conditioner according to an embodiment of a first aspect of the present invention includes the steps of:
acquiring a first refrigerant concentration of an air inlet of an indoor unit in an air conditioner;
determining that the first refrigerant concentration is greater than a first threshold value, controlling an outdoor unit of the air conditioner to stop and a fan in the indoor unit to reversely rotate, and acquiring a second refrigerant concentration of the air inlet after the fan reversely rotates for a preset time;
and determining a refrigerant leakage position according to the first refrigerant concentration and the second refrigerant concentration.
The control method of the air conditioner provided by the embodiment of the invention at least has the following beneficial effects: whether the refrigerant of air conditioner reveals is confirmed through the big or small relation between first refrigerant concentration and the first threshold value, can be through detecting first refrigerant concentration and second refrigerant concentration when the refrigerant reveals moreover to confirm the refrigerant and reveal the position, make user or maintenance personal can in time discover to take place the part that the refrigerant revealed, conveniently carry out the pertinence change or maintenance to it.
According to some embodiments of the present invention, the determining a refrigerant leakage position according to the first refrigerant concentration and the second refrigerant concentration specifically includes:
if the second refrigerant concentration is greater than the first refrigerant concentration, the refrigerant leakage position is inside the indoor unit;
and if the second refrigerant concentration is less than or equal to the first refrigerant concentration, the refrigerant leakage position is a refrigerant pipe between the indoor unit and the outdoor unit.
According to the embodiment of the invention, the refrigerant leakage position is simply and quickly determined through the magnitude relation between the first refrigerant concentration and the second refrigerant concentration, and the maintenance processing is convenient for users and maintenance personnel.
According to some embodiments of the invention, further comprising:
and sending refrigerant leakage information for representing the refrigerant leakage position.
In the embodiment of the invention, the refrigerant leakage information is sent to the user, so that the user can know the refrigerant leakage condition of the air conditioner in time.
According to some embodiments of the invention, further comprising:
acquiring a third refrigerant concentration of the air inlet, and executing at least one of the following steps if the third refrigerant concentration is determined to be greater than a second threshold value:
controlling a fresh air system to be started;
controlling the window to open;
and controlling an alarm to give an alarm.
According to the embodiment of the invention, the concentration of the third refrigerant in the air inlet is detected, and when the concentration of the third refrigerant is too high, the fresh air system of the air conditioner is controlled to be started, the window is controlled to be opened and/or the alarm is controlled to give an alarm, so that the concentration of the refrigerant in the air can be effectively reduced, and the suffocation of people in the current environment can be avoided. In addition, the alarm can remind people in the current environment to evacuate in time, and safety is greatly improved.
According to some embodiments of the invention, further comprising:
acquiring the oxygen concentration or the carbon dioxide concentration or the formaldehyde concentration of the air inlet, and executing at least one of the following steps if the first condition is met:
controlling a fresh air system to be started;
controlling the window to open;
controlling the air purification system to be started;
controlling an alarm to alarm;
wherein the first condition comprises one of:
the oxygen concentration is less than a third threshold;
the carbon dioxide concentration is greater than a fourth threshold;
the formaldehyde concentration is greater than a fifth threshold.
According to the embodiment of the invention, the concentration of the carbon dioxide and the concentration of the formaldehyde in the air are effectively reduced by detecting the concentration of the oxygen or the concentration of the carbon dioxide or the concentration of the formaldehyde in the air inlet and controlling the opening of a fresh air system of the air conditioner, the opening of a window and the alarm of an air purification system and/or controlling the alarm to give an alarm when the concentration of the oxygen is too low or the concentration of the carbon dioxide is too high or the concentration of the formaldehyde is too high, so that the suffocation of people in the current environment can. In addition, the alarm can remind people in the current environment to evacuate in time, and safety is greatly improved.
According to some embodiments of the invention, further comprising:
acquiring the PM2.5 concentration of the air inlet, and if the PM2.5 concentration is determined to be greater than a sixth threshold, executing at least one of the following steps:
controlling a fresh air system to be started;
controlling the window to be closed;
the PM2.5 concentration is shown.
According to the embodiment of the invention, the PM2.5 concentration of the air inlet is detected, and when the PM2.5 concentration is too high, the fresh air system of the air conditioner is controlled to be opened, the window is controlled to be closed and/or the PM2.5 concentration is displayed, so that the PM2.5 concentration in the air can be effectively reduced, and the quality of the air inhaled by people in the current environment can be improved.
A control device of an air conditioner according to an embodiment of a second aspect of the present invention includes:
the first acquisition module is used for acquiring the first refrigerant concentration of an air inlet of an indoor unit in the air conditioner;
the second acquisition module is used for determining that the first refrigerant concentration is greater than a first threshold value, controlling an outdoor unit of the air conditioner to stop, controlling a fan in the indoor unit to reversely rotate, and acquiring a second refrigerant concentration of the air inlet after the fan reversely rotates for a preset time;
and the detection module is used for determining the refrigerant leakage position according to the first refrigerant concentration and the second refrigerant concentration.
The control device of the air conditioner provided by the embodiment of the invention at least has the following beneficial effects: whether the refrigerant of air conditioner reveals is confirmed through the big or small relation between first refrigerant concentration and the first threshold value, can be through detecting first refrigerant concentration and second refrigerant concentration when the refrigerant reveals moreover to confirm the refrigerant and reveal the position, make user or maintenance personal can in time discover to take place the part that the refrigerant revealed, conveniently carry out the pertinence change or maintenance to it.
An air conditioner according to a third aspect of the present invention includes an indoor unit and an outdoor unit, the indoor unit being connected to the outdoor unit, and the indoor unit including the control device of the air conditioner according to the second aspect of the present invention.
The air conditioner provided by the embodiment of the invention has at least the following beneficial effects: the controlling means of the air conditioner of air conditioner confirms whether the refrigerant of air conditioner reveals through the big or small relation between first refrigerant concentration and the first threshold value, can be through detecting first refrigerant concentration and second refrigerant concentration when the refrigerant reveals moreover to determine the refrigerant and reveal the position, make user or maintenance personal can in time discover the part that takes place the refrigerant and reveal, conveniently carry out the change or the maintenance of pertinence to it.
An electronic device according to a fourth aspect embodiment of the present invention includes a memory and a processor;
wherein the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory, for implementing the control method of the air conditioner as described above.
According to the electronic equipment provided by the embodiment of the invention, at least the following beneficial effects are achieved: the electronic equipment's treater confirms whether the refrigerant of air conditioner reveals through the big or small relation between first refrigerant concentration and the first threshold value, can be through detecting first refrigerant concentration and second refrigerant concentration when the refrigerant reveals moreover to determine the refrigerant and reveal the position, make user or maintenance personal can in time discover to take place the part that the refrigerant revealed, conveniently carry out the change of pertinence or maintenance to it.
A computer-readable storage medium according to an embodiment of a fifth aspect of the present invention, having stored thereon a detection program, which when executed by a processor, implements the steps of the control method of an air conditioner.
The computer-readable storage medium according to the embodiment of the invention has at least the following advantages: through carrying out the detection procedure, can confirm whether the refrigerant of air conditioner reveals through the big or small relation between first refrigerant concentration and the first threshold value, can be through detecting first refrigerant concentration and second refrigerant concentration when the refrigerant reveals moreover to determine the refrigerant and reveal the position, make user or maintenance personal can in time discover to take place the part that the refrigerant revealed, conveniently carry out targeted change or maintenance to it.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic view of the wind direction of the indoor unit fan in the embodiment of the present invention when rotating forward;
FIG. 3 is a schematic view of the wind direction of the indoor unit when the fan rotates reversely according to the embodiment of the present invention;
FIG. 4 is a flow chart illustrating an embodiment of a method for controlling an air conditioner according to the present invention;
FIG. 5 is a flowchart illustrating an exemplary application of the control method of the air conditioner according to the present invention;
FIG. 6 is a block diagram of a control device of an air conditioner according to an embodiment of the present invention;
FIG. 7 is a block diagram of an air conditioner according to an embodiment of the present invention;
fig. 8 is a block diagram of an electronic device according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
An embodiment of the present invention provides an embodiment of a control method of an air conditioner, and referring to fig. 1, fig. 1 is a schematic flowchart of the embodiment of the control method of the air conditioner of the present invention.
In this embodiment, referring to fig. 2, the air conditioner in this embodiment may include an indoor unit and an outdoor unit, the indoor unit mainly includes an evaporator 21, an air duct 22, a fan 23, an air inlet 24 and an air outlet 25, and a refrigerant pipe is connected between the outdoor unit and the indoor unit. Because of the installation mode of the air conditioner, the outdoor unit is communicated with the outdoor atmosphere, even if the refrigerant of the outdoor unit of the air conditioner leaks, the danger coefficient is lower, and the refrigerant leakage can influence the energy efficiency of the air conditioner; the danger coefficient caused by indoor refrigerant leakage of the indoor unit or the refrigerant pipe is high, when the concentration of the refrigerant in the air conditioner reaches a certain value and is diffused into indoor air, the problem of insufficient ambient oxygen content is caused, and if the indoor unit or the refrigerant pipe is located in a small closed space, such as a space in a vehicle or a narrow room, people sleeping in the indoor unit or the refrigerant pipe are easy to suffocate. In the present embodiment, the air conditioner may be a vehicle-mounted air conditioner or a home air conditioner.
In the present embodiment, the evaporator may be a cooling liquid coolant evaporator or a cooling air evaporator, and the like. The air duct is a closed space formed in the indoor unit for ventilation.
The control method of the air conditioner comprises the following steps:
s100, obtaining a first refrigerant concentration of an air inlet of an indoor unit in the air conditioner.
It should be understood that, in the embodiment of the present application, the first refrigerant concentration may be obtained by installing a refrigerant concentration sensor in the air inlet, or by installing a gas concentration sensor in the air inlet to collect the concentration of gas in the air, and according to the concentration of gas in the air and a calculation formula in the related art, the first refrigerant concentration is calculated.
S101, determining that the concentration of the first refrigerant is greater than a first threshold value, controlling an outdoor unit of the air conditioner to stop, controlling a fan in the indoor unit to reversely rotate, and acquiring a second refrigerant concentration of the air inlet after the fan reversely rotates for a preset time.
It is understood that, in this embodiment, the first threshold may be preset, and the first threshold may be 0%, may also be a minimum value that can be detected by the refrigerant concentration sensor, or may also be another set value. After the first refrigerant concentration is obtained, the magnitude relation between the first refrigerant concentration and a first threshold value can be determined, if the first refrigerant concentration is not greater than the first threshold value, it is indicated that refrigerant leakage does not occur, and subsequent further leakage detection is not needed. If the first refrigerant concentration is greater than the first threshold, it indicates that refrigerant leakage occurs, and at this time, it is necessary to further determine the refrigerant leakage position, so that it is necessary to control the outdoor unit of the air conditioner to stop and control the fan 23 in the indoor unit to reverse, so that the wind direction of the air duct 22 in the indoor unit is reversed as shown in fig. 3.
Wherein, the preset time can be set according to the actual condition of the air conditioner. For example, the preset time may be 5s in this embodiment, and the preset time is calculated from the reverse rotation of the blower 23.
And S102, determining a refrigerant leakage position according to the first refrigerant concentration and the second refrigerant concentration.
According to an embodiment of the present application, as shown in fig. 4, the determining the refrigerant leakage position according to the first refrigerant concentration and the second refrigerant concentration specifically includes:
and S1021, if the concentration of the second refrigerant is greater than that of the first refrigerant, the refrigerant leakage position is the inside of the indoor unit.
And S1022, if the second refrigerant concentration is less than or equal to the first refrigerant concentration, the refrigerant leakage position is a refrigerant pipe between the indoor unit and the outdoor unit.
It can be understood that, in the embodiment, a mapping relationship between the magnitude of the second refrigerant concentration and the first refrigerant concentration and the refrigerant leakage position may be preset. In this embodiment, the second refrigerant concentration is obtained after the fan is turned over, and therefore, if the second refrigerant concentration is greater than the first refrigerant concentration, it is described that the fan blows gas with a higher refrigerant concentration inside the indoor unit to the vicinity of the air inlet after being turned over, which indicates that the refrigerant leakage position is inside the indoor unit; if the second refrigerant concentration is less than or equal to the first refrigerant concentration, it is indicated that the indoor unit does not have gas with a higher refrigerant concentration, and the refrigerant leakage position is outside the indoor unit, so the refrigerant leakage position is a refrigerant pipe between the indoor unit and the outdoor unit.
In some embodiments, further comprising: and sending refrigerant leakage information for representing the refrigerant leakage position.
It can be understood that the intelligent device of the user and the air conditioner can be bound in advance, and after the refrigerant leakage of the air conditioner is determined, the refrigerant leakage information representing the refrigerant leakage position can be sent out by the embodiment of the application, for example, the refrigerant leakage information is sent to the intelligent device of the user; or the refrigerant leakage information can be sent to a display module of the air conditioner, and the display module displays refrigerant leakage faults according to the refrigerant leakage information; or the refrigerant leakage fault is displayed while the refrigerant leakage information is sent to the user, so that the user can obtain the leakage information in time, safety measures are made in advance, the safety of the user is greatly guaranteed, the satisfaction degree of the user is improved while the risk is reduced, and the panic psychology of the user is reduced.
In some embodiments, further comprising:
acquiring a third refrigerant concentration of the air inlet, and executing at least one of the following steps if the third refrigerant concentration is determined to be greater than a second threshold value:
controlling a fresh air system to be started;
controlling the window to open;
and controlling an alarm to give an alarm.
It can be understood that the second threshold in this embodiment is a threshold indicating that the refrigerant concentration is too high, and when it is detected in real time that the third refrigerant concentration is greater than the second threshold, that is, the third refrigerant concentration is too high, the fresh air system of the air conditioner is controlled to be opened and/or the window is controlled to be opened, and the fresh air system is opened or the window is controlled to be opened, so that the refrigerant concentration in the air can be effectively reduced, and therefore people in the current environment can be prevented from suffocating; in addition, the alarm can remind people in the current environment to evacuate in time, and safety is greatly improved. Wherein, the window can be a car window or a smart window.
In some embodiments, further comprising:
acquiring the oxygen concentration or the carbon dioxide concentration or the formaldehyde concentration of the air inlet, and executing at least one of the following steps if the first condition is met:
controlling a fresh air system to be started;
controlling the window to open;
controlling the air purification system to be started;
controlling an alarm to alarm;
wherein the first condition comprises one of:
the oxygen concentration is less than a third threshold;
the carbon dioxide concentration is greater than a fourth threshold;
the formaldehyde concentration is greater than a fifth threshold.
It can be understood that, in this embodiment, the oxygen concentration or the carbon dioxide concentration or the formaldehyde concentration may be obtained by installing an oxygen sensor, a carbon dioxide sensor or a formaldehyde sensor in the air inlet, or by installing a gas concentration sensor in the air inlet to collect the concentration of the gas in the air, and according to the concentration of the gas in the air and a calculation formula in the related art, the oxygen concentration or the carbon dioxide concentration or the formaldehyde concentration is calculated. The third threshold value is a threshold value which indicates that the oxygen concentration is too low, the fourth threshold value is a threshold value which indicates that the carbon dioxide concentration is too high, the fifth threshold value is a threshold value which indicates that the formaldehyde concentration is too high, and when the oxygen concentration is detected to be smaller than the third threshold value in real time, namely the oxygen concentration is too low, or the carbon dioxide concentration is detected to be larger than the fourth threshold value in real time, namely the carbon dioxide concentration is too high, or the formaldehyde concentration is detected to be larger than the fifth threshold value in real time, namely the formaldehyde concentration is too high, the fresh air system of the air conditioner is controlled to be started, the window is controlled to be opened, the air purification system is controlled to be. Through the operation, the concentration of carbon dioxide or formaldehyde in the air is effectively reduced, the concentration of oxygen is improved, and people in the current environment are reminded to evacuate in time, so that the people in the current environment can be prevented from suffocating, and the safety is greatly improved. Wherein, the window can be a car window or a smart window.
In some embodiments, further comprising:
acquiring the PM2.5 concentration of the air inlet, and executing at least one of the following steps if the PM2.5 concentration is determined to be greater than a sixth threshold value:
controlling a fresh air system to be started;
controlling the window to be closed;
PM2.5 concentration is shown.
It can be understood that in the present embodiment, the PM2.5 concentration may be obtained by installing a PM2.5 sensor in the air inlet to obtain the PM2.5 concentration, or installing a gas concentration sensor in the air inlet to collect the concentration of the gas in the air, and calculating the PM2.5 concentration according to the concentration of the gas in the air and a calculation formula in the related art. The sixth threshold is a threshold indicating that the concentration of PM2.5 in the air is too high, and when the fact that the concentration of PM2.5 is greater than the sixth threshold is detected in real time, namely the concentration of PM2.5 is too high, the fresh air system of the air conditioner is controlled to be opened, the window is controlled to be closed and/or the concentration of PM2.5 is displayed, the concentration of PM2.5 in the air can be effectively reduced, and therefore the quality of air inhaled by people in the current environment can be improved. Wherein, the window can be a car window or a smart window.
Taking a control method of a vehicle-mounted air conditioner for realizing the air conditioner of any one of the above embodiments as an example, fig. 5 is a flowchart of a specific application example of the control method of the air conditioner of the embodiment of the present invention, and the specific steps of the specific application example are as follows:
step S1: the air in the cab is detected, and if the refrigerant is detected, the following operations can be carried out:
and controlling the outdoor unit to stop, controlling the fan of the indoor unit to reversely rotate, judging whether the concentration of the refrigerant is enhanced again, and if so, proving that the refrigerant of the indoor unit leaks. If not, the refrigerant pipe leaks. And may be fed back to the user based on this information.
If the refrigerant concentration is detected to be too high, the safety of personnel in the cab can be endangered, the outdoor unit is controlled, if the fresh air system exists, the fresh air system is opened, if the fresh air system is connected with the main control system of the automobile, the windows of the automobile are controlled to be completely opened, and if the alarm exists, the alarm is used for giving an alarm to prompt the personnel in the cab to evacuate.
Step S2: detecting the oxygen concentration in the cab, and if the detected oxygen concentration is too low, performing the following operations:
if the fresh air system is available, the fresh air system is opened, and if the fresh air system is opened for a period of time, the oxygen concentration still does not rise; if the automobile master control is connected, the windows are controlled to be opened completely. If the measures are not adopted, an alarm can be used for carrying out audible and visual alarm to prompt people in the cab to evacuate.
Step S3: detecting the concentration of carbon dioxide in the cab, and if the concentration of carbon dioxide is detected to be too high, performing the following operations:
if the fresh air system is available, the fresh air system is opened, and if the fresh air system is opened for a period of time, the concentration of carbon dioxide still does not decrease. If the automobile master control is connected, the windows are controlled to be opened completely. If the measures are not adopted, an alarm can be used for carrying out audible and visual alarm to prompt people in the cab to evacuate.
Step S4: detecting the concentration of formaldehyde in the cab, and if the concentration of formaldehyde is detected to be too high, performing the following operations:
if the fresh air system is available, the fresh air system is opened, and if the fresh air system is opened for a period of time, the concentration of formaldehyde still does not decrease. And if the air purification system is available, starting the air purification system. If the measures are not adopted, if the automobile master control is connected, the windows are controlled to be opened completely. Or an alarm is used for carrying out audible and visual alarm to prompt people in the cab.
Step S5: the concentration of PM2.5 in the cab is detected, and if the concentration of PM2.5 is detected to be too high, the following operations can be carried out:
and starting an air purification system to purify the air. If the automobile master control is connected, the windows are controlled to be completely closed. The PM2.5 concentration is displayed in the display area.
Fig. 6 is a block diagram illustrating a control apparatus of an air conditioner according to an embodiment of the present invention, and as shown in fig. 6, the control apparatus 10 of the air conditioner includes a first obtaining module 100, a second obtaining module 200, and a detecting module 300.
The first obtaining module 100 is configured to obtain a first refrigerant concentration at an air inlet of an indoor unit in the air conditioner.
And the second obtaining module 200 is configured to determine that the first refrigerant concentration is greater than a first threshold, control an outdoor unit of the air conditioner to stop, control a fan in the indoor unit to reverse, and obtain a second refrigerant concentration of the air inlet after the fan reverses for a preset time.
The detection module 300 is configured to determine a refrigerant leakage position according to the first refrigerant concentration and the second refrigerant concentration.
In some embodiments, the detection module 300 is specifically configured to: if the concentration of the second refrigerant is greater than that of the first refrigerant, determining that the refrigerant leakage position is inside the indoor unit; and if the second refrigerant concentration is less than or equal to the first refrigerant concentration, determining the refrigerant leakage position as a refrigerant pipe between the indoor unit and the outdoor unit.
In some embodiments, the detection module 300 further comprises: and the information sending module is used for sending refrigerant leakage information used for representing the refrigerant leakage position.
In some embodiments, the detection module 300 further comprises: the third obtaining module is configured to obtain a third refrigerant concentration of the air inlet, and if it is determined that the third refrigerant concentration is greater than a second threshold, at least one of the following steps is performed: controlling a fresh air system to be started; controlling the window to open; and controlling an alarm to give an alarm.
In some embodiments, the detection module 300 further comprises: the fourth obtaining module is used for obtaining the oxygen concentration or the carbon dioxide concentration or the formaldehyde concentration of the air inlet, and if the first condition is determined to be met, at least one of the following steps is executed: controlling a fresh air system to be started; controlling the window to open; controlling the air purification system to be started; and controlling an alarm to give an alarm.
Wherein the first condition comprises one of: the oxygen concentration is less than a third threshold; the carbon dioxide concentration is greater than a fourth threshold; the formaldehyde concentration is greater than a fifth threshold.
In some embodiments, the detection module 300 further comprises: a sixth obtaining module, configured to obtain the PM2.5 concentration of the air inlet, and if it is determined that the PM2.5 concentration is greater than a sixth threshold, perform at least one of the following steps: controlling a fresh air system to be started; controlling the window to be closed; PM2.5 concentration is shown.
It should be noted that the foregoing explanation of the embodiment of the control method of the air conditioner is also applicable to the control device of the air conditioner of this embodiment, and details are not repeated here.
According to the control device 10 of the air conditioner, the refrigerant leakage of the air conditioner can be judged according to the first refrigerant concentration, and the refrigerant leakage position can be detected and determined by combining the first refrigerant concentration and the second refrigerant concentration, so that a user or a maintenance worker can find out a failed component in time, and the component can be conveniently and specifically replaced or maintained.
As shown in fig. 7, the present application proposes an air conditioner 20, which includes an indoor unit 12 and an outdoor unit 11, wherein the indoor unit 12 is connected to the outdoor unit 11, and the indoor unit 12 includes the control device 10 of the air conditioner.
According to the air conditioner 20 provided by the embodiment of the invention, the refrigerant leakage of the air conditioner 20 can be judged according to the first refrigerant concentration, and the refrigerant leakage position can be detected and determined by combining the first refrigerant concentration and the second refrigerant concentration, so that a user or a maintenance worker can find out a failed component in time, and the component can be conveniently and pertinently replaced or maintained.
As shown in fig. 8, the present application proposes an electronic device 1000 comprising a memory 1100 and a processor 1200;
the processor 1200 reads the executable program code stored in the memory 1100 to run the program corresponding to the executable program code, so as to implement the control method of the air conditioner.
The invention provides a computer readable storage medium, wherein a detection program is stored on the computer readable storage medium, and the steps of the control method of the air conditioner are realized when the detection program is executed by a processor.
It will be understood that all or some of the steps, systems of methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (9)
1. A control method of an air conditioner is characterized by comprising the following steps:
acquiring a first refrigerant concentration of an air inlet of an indoor unit in an air conditioner;
determining that the first refrigerant concentration is greater than a first threshold value, controlling an outdoor unit of the air conditioner to stop and a fan in the indoor unit to reversely rotate, and acquiring a second refrigerant concentration of the air inlet after the fan reversely rotates for a preset time;
determining a refrigerant leakage position according to the first refrigerant concentration and the second refrigerant concentration;
the method comprises the following steps of determining a refrigerant leakage position according to the first refrigerant concentration and the second refrigerant concentration, wherein the step specifically comprises the following steps:
if the second refrigerant concentration is greater than the first refrigerant concentration, the refrigerant leakage position is inside the indoor unit;
and if the second refrigerant concentration is less than or equal to the first refrigerant concentration, the refrigerant leakage position is a refrigerant pipe between the indoor unit and the outdoor unit.
2. The control method of an air conditioner according to claim 1, wherein: further comprising:
and sending refrigerant leakage information for representing the refrigerant leakage position.
3. The control method of an air conditioner according to claim 1, wherein: further comprising:
acquiring a third refrigerant concentration of the air inlet, and executing at least one of the following steps if the third refrigerant concentration is determined to be greater than a second threshold value:
controlling a fresh air system to be started;
controlling the window to open;
and controlling an alarm to give an alarm.
4. The control method of an air conditioner according to claim 1, wherein: further comprising:
acquiring the oxygen concentration or the carbon dioxide concentration or the formaldehyde concentration of the air inlet, and executing at least one of the following steps if the first condition is met:
controlling a fresh air system to be started;
controlling the window to open;
controlling the air purification system to be started;
controlling an alarm to alarm;
wherein the first condition comprises one of:
the oxygen concentration is less than a third threshold;
the carbon dioxide concentration is greater than a fourth threshold;
the formaldehyde concentration is greater than a fifth threshold.
5. The control method of an air conditioner according to claim 1, wherein: further comprising:
acquiring the PM2.5 concentration of the air inlet, and if the PM2.5 concentration is determined to be greater than a sixth threshold, executing at least one of the following steps:
controlling a fresh air system to be started;
controlling the window to be closed;
the PM2.5 concentration is shown.
6. A control apparatus of an air conditioner, comprising:
the first acquisition module is used for acquiring the first refrigerant concentration of an air inlet of an indoor unit in the air conditioner;
the second acquisition module is used for determining that the first refrigerant concentration is greater than a first threshold value, controlling an outdoor unit of the air conditioner to stop, controlling a fan in the indoor unit to reversely rotate, and acquiring a second refrigerant concentration of the air inlet after the fan reversely rotates for a preset time;
the detection module is used for determining a refrigerant leakage position according to the first refrigerant concentration and the second refrigerant concentration;
the determining the refrigerant leakage position according to the first refrigerant concentration and the second refrigerant concentration specifically comprises:
if the second refrigerant concentration is greater than the first refrigerant concentration, the refrigerant leakage position is inside the indoor unit;
and if the second refrigerant concentration is less than or equal to the first refrigerant concentration, the refrigerant leakage position is a refrigerant pipe between the indoor unit and the outdoor unit.
7. An air conditioner comprising an indoor unit and an outdoor unit, the indoor unit being connected to the outdoor unit, the indoor unit comprising the control device of the air conditioner according to claim 6.
8. An electronic device comprising a memory and a processor;
wherein the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory, for implementing the control method of the air conditioner according to any one of claims 1 to 5.
9. A computer-readable storage medium, wherein a detection program is stored thereon, and when executed by a processor, implements the control method of an air conditioner according to any one of claims 1 to 5.
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| US10514176B2 (en) | 2017-12-01 | 2019-12-24 | Johnson Controls Technology Company | Systems and methods for refrigerant leak management |
| CN114811844B (en) * | 2022-04-19 | 2023-07-18 | 美的集团武汉暖通设备有限公司 | Operation control method and device of air conditioner and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11230648A (en) * | 1998-02-13 | 1999-08-27 | Matsushita Electric Ind Co Ltd | Refrigerant leakage alarm for freezing apparatus using combustible refrigerant |
| JP3810960B2 (en) * | 1999-09-07 | 2006-08-16 | 松下電器産業株式会社 | Ventilation system |
| JP3523584B2 (en) * | 2000-10-12 | 2004-04-26 | 株式会社 日立インダストリイズ | Heat pump system |
| CN102269447B (en) * | 2011-07-14 | 2014-01-01 | 美的集团股份有限公司 | Air conditioner using combustible refrigerant, and control method of air conditioner |
| JP6017045B2 (en) * | 2013-08-01 | 2016-10-26 | 三菱電機株式会社 | Heat source unit |
| CN104006934B (en) * | 2014-06-05 | 2017-02-15 | 珠海格力电器股份有限公司 | Detection system, method and device and air conditioner |
| JP6137264B2 (en) * | 2015-09-30 | 2017-05-31 | ダイキン工業株式会社 | Refrigeration equipment |
| JP6958627B2 (en) * | 2017-10-18 | 2021-11-02 | 三菱電機株式会社 | Air conditioner |
| CN110173812A (en) * | 2019-05-29 | 2019-08-27 | 广东美的制冷设备有限公司 | The control method of air conditioner and air conditioner, device |
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