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CN110044024B - Air conditioner fan control method, system and air conditioner - Google Patents

Air conditioner fan control method, system and air conditioner Download PDF

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Publication number
CN110044024B
CN110044024B CN201910354943.7A CN201910354943A CN110044024B CN 110044024 B CN110044024 B CN 110044024B CN 201910354943 A CN201910354943 A CN 201910354943A CN 110044024 B CN110044024 B CN 110044024B
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refrigerant
air conditioner
fan
concentration
air
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CN110044024A (en
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齐虹杰
李廷勋
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Sun Yat Sen University
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

本申请提出一种空调的风机控制方法、系统及空调。其中，空调的风机控制方法，包括以下步骤：检测当前时刻下预定采样点的冷媒浓度；根据所述冷媒浓度确定截止到所述当前时刻的冷媒泄漏总量；根据所述冷媒泄漏总量控制室内风机的运行状态。本申请的空调的风机控制方法，在空调的冷媒发生泄漏时，可以有效地使泄漏的冷媒在空气中充分扩散，避免局部冷媒浓度过高导致的危害，还可以避免风机的反复启停，提升空调使用寿命的同时，降低泄漏的冷媒带来的安全隐患。

Figure 201910354943

The present application provides a fan control method, system and air conditioner for an air conditioner. The method for controlling a fan of an air conditioner includes the following steps: detecting the refrigerant concentration at a predetermined sampling point at the current moment; determining the total amount of refrigerant leakage up to the current moment according to the refrigerant concentration; The operating status of the fan. The fan control method of the air conditioner of the present application can effectively make the leaked refrigerant fully diffuse in the air when the refrigerant of the air conditioner leaks, avoid the harm caused by the high concentration of the local refrigerant, and also avoid the repeated start and stop of the fan, and improve the At the same time of the service life of the air conditioner, the safety hazard caused by the leaked refrigerant is reduced.

Figure 201910354943

Description

Fan control method and system of air conditioner and air conditioner
Technical Field
The application relates to the technical field of household appliances, in particular to a fan control method and system of an air conditioner and the air conditioner.
Background
The refrigerant of the air conditioner leaks, which not only affects the refrigeration and heating water level of the air conditioner, but also has potential safety hazards, such as: in the case of flammable refrigerants, when there is excessive leakage, fire may occur, and there is a safety risk, and therefore, it is necessary to detect whether the refrigerant leaks. In the related art, whether leakage occurs may be determined by detecting the concentration of leaked refrigerant, for example: when the detected concentration reaches a specific threshold value, leakage is determined to occur, meanwhile, the fan is controlled according to the limit value to accelerate the diffusion of leaked refrigerant, and potential safety hazards caused by overhigh local concentration are avoided, for example: and controlling the fan to operate when the concentration is higher than the limit value, and suspending the fan to operate when the concentration is lower than the limit value. Whether the refrigerant leaks is judged through detecting whether refrigerant concentration rises in addition, simultaneously, after concentration variation trend rises, the control fan accelerates the refrigerant diffusion of leaking, avoids local concentration too high to bring the potential safety hazard, for example: and controlling the fan to operate when the concentration variation trend rises, and suspending the fan to operate when the concentration variation trend does not rise.
The following technical problems exist:
when the refrigerant leakage speed is low or the leakage time is long, the concentration of the refrigerant is reduced after the fan operates, the fan stops operating after the fan stop condition is reached, but the refrigerant may still leak at the moment, the fan reaches the start condition again after a period of time, the fan is controlled to operate again, when the fan is frequently started and stopped, the service life of the fan is reduced and the operation is wasted, when the fan stops operating, the refrigerant leakage safety risk of a user is easily misled, and therefore certain potential safety hazards are generated.
Content of application
The present application is directed to solving at least one of the above problems.
To this end, an object of the present application is to provide a fan control method of an air conditioner. When the refrigerant of the air conditioner leaks, the method can effectively fully diffuse the leaked refrigerant in the air, avoids the harm caused by overhigh concentration of the local refrigerant, can also avoid the repeated start and stop of the fan, prolongs the service life of the air conditioner, and reduces the potential safety hazard caused by the leaked refrigerant.
A second object of the present application is to provide a fan control system of an air conditioner.
A third object of the present application is to provide an air conditioner.
A fourth object of the present application is to propose a non-transitory computer-readable storage medium.
A fifth object of the present application is to provide an air conditioning apparatus.
In order to achieve the above object, an embodiment of a first aspect of the present application discloses a fan control method for an air conditioner, including the following steps: detecting the concentration of a refrigerant at a preset sampling point at the current moment; obtaining the total refrigerant leakage amount up to the current moment according to the refrigerant concentration; and controlling the running state of the indoor fan according to the total refrigerant leakage amount.
According to the fan control method of the air conditioner, when the refrigerant of the air conditioner leaks, the leaked refrigerant can be effectively and fully diffused in the air through the operation of the fan, the damage caused by overhigh concentration of the local refrigerant is avoided, in addition, whether the refrigerant in the air conditioner is basically leaked and completed or not can be known according to the leakage total amount of the refrigerant, the fan is controlled to be shut down after the leakage is determined to be sufficient, the repeated starting and stopping of the fan when the refrigerant leaks are avoided, the service life of the air conditioner is prolonged, and meanwhile, the potential safety hazard caused by the leaked refrigerant is reduced.
In some examples, the determining the total refrigerant leakage amount up to the current time according to the refrigerant concentration includes: acquiring fan operation parameters and air conditioner operation space parameters; and obtaining the total refrigerant leakage amount according to the refrigerant concentration, the fan operation parameter and the air conditioner operation space parameter.
In some examples, the fan operation parameters include an air volume generated by an indoor fan operation at a current time and a start time of the indoor fan operation, and the air-conditioning operation space parameters include a refrigerant density of an air-conditioning operation space and a volume of the air-conditioning operation space.
In some examples, the total refrigerant leakage amount is obtained by the following formula:
Figure GDA0002605480780000031
wherein, M istFor stopping the total refrigerant leakage amount at the current moment, QtThe air quantity generated by the indoor fan at the current moment
Figure GDA0002605480780000032
The concentration of the refrigerant at the air outlet of the air conditioner at the current moment
Figure GDA0002605480780000033
And the p is the refrigerant density of the air conditioner air outlet, and t is the current time.
In some examples, the controlling the operation state of the indoor fan according to the total refrigerant leakage amount includes: determining the total amount of residual refrigerants in the air conditioner according to the total refrigerant leakage amount; and when the total amount of the residual refrigerants is smaller than a preset value, controlling the indoor fan to shut down, otherwise, controlling the indoor fan to continue to operate.
In some examples, further comprising: if the concentration of the refrigerant at the preset sampling point at the current moment reaches a first preset concentration, judging that the refrigerant leaks, and alarming; and when the concentration of the refrigerant reaches a second preset concentration, controlling the indoor fan to start to operate, wherein the second preset concentration is greater than or equal to the first preset concentration.
An embodiment of a second aspect of the present application discloses a fan control system of an air conditioner, including: the detection module is used for detecting the refrigerant concentration of a preset sampling point at the current moment; the refrigerant leakage total amount calculation module is used for determining the refrigerant leakage total amount ending to the current moment according to the refrigerant concentration; and the fan control module is used for controlling the running state of the indoor fan according to the total refrigerant leakage amount.
According to the fan control system of air conditioner of this application, when the refrigerant of air conditioner takes place to leak, the operation through the fan can make the refrigerant of leaking fully diffuse in the air effectively, avoid the harm that local refrigerant concentration too high leads to, in addition, can learn whether the refrigerant in the air conditioner leaks basically to accomplish according to the refrigerant leakage total amount, and after confirming that the leakage is more abundant, control fan shuts down, the repeated start-stop of fan when avoiding the refrigerant to leak, when promoting air conditioner life, reduce the potential safety hazard that the refrigerant of leaking brought.
In some examples, the total refrigerant leakage amount calculation module is configured to obtain a fan operation parameter and an air conditioner operation space parameter, and obtain the total refrigerant leakage amount according to the refrigerant concentration, the fan operation parameter, and the air conditioner operation space parameter.
In some examples, the fan operation parameters include an air volume generated by an indoor fan operation at a current time and a start time of the indoor fan operation, and the air-conditioning operation space parameters include a refrigerant density of an air-conditioning operation space and a volume of the air-conditioning operation space.
In some examples, the total refrigerant leakage amount calculation module obtains the total refrigerant leakage amount through the following formula:
Figure GDA0002605480780000041
wherein, M istFor stopping the total refrigerant leakage amount at the current moment, QtThe air quantity generated by the indoor fan at the current moment
Figure GDA0002605480780000042
The concentration of the refrigerant at the air outlet of the air conditioner at the current moment
Figure GDA0002605480780000043
And the p is the refrigerant density of the air conditioner air outlet, and t is the current time.
In some examples, the blower control module is configured to determine a total amount of remaining refrigerants in the air conditioner according to the total refrigerant leakage amount, and control the indoor blower to shut down when the total amount of remaining refrigerants is smaller than a preset value, or control the indoor blower to continue to operate otherwise.
An embodiment of a third aspect of the present application discloses an air conditioner, comprising: the fan control system of the air conditioner according to the second aspect. When the refrigerant of this air conditioner takes place to leak, the operation through the fan can make the refrigerant of leaking fully diffuse in the air effectively, avoids the harm that local refrigerant concentration too high leads to, in addition, can learn whether basically to leak the completion of the refrigerant in the air conditioner according to the refrigerant leakage total amount to in the definite more abundant back of leaking, the control fan is shut down, stops repeatedly opening of fan when avoiding the refrigerant to leak, when promoting air conditioner life, reduces the potential safety hazard that the refrigerant of leaking brought.
Embodiments of a fourth aspect of the present application disclose a non-transitory computer-readable storage medium on which a fan control program of an air conditioner is stored, the fan control program of the air conditioner, when executed by a processor, implementing the fan control method of the air conditioner as described in the first aspect above.
An embodiment of a fifth aspect of the present application discloses an air conditioning device, which includes a memory, a processor, and a fan control program of an air conditioner that is stored in the memory and is executable on the processor, and the fan control method of the air conditioner according to the first aspect is implemented when the processor executes the fan control program of the air conditioner. This air conditioning equipment, when the refrigerant takes place to leak, the operation through the fan can make the refrigerant of leaking fully diffuse in the air effectively, avoids the harm that local refrigerant concentration too high leads to, in addition, can learn whether basically the leakage of refrigerant in the air conditioner is accomplished according to the refrigerant leakage total amount, and in the more abundant back of definite leakage, the control fan shuts down, stops repeatedly opening of fan when avoiding the refrigerant to leak, when promoting air conditioner life, reduces the potential safety hazard that the refrigerant of leaking brought.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application 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 of a fan control method of an air conditioner according to an embodiment of the present application;
fig. 2 is a block diagram of a fan control system of an air conditioner according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, 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 drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The following describes a fan control method and system of an air conditioner and the air conditioner according to an embodiment of the application with reference to the accompanying drawings.
Fig. 1 is a flowchart of a fan control method of an air conditioner according to an embodiment of the present application. As shown in fig. 1, a fan control method of an air conditioner according to an embodiment of the present application includes the steps of:
s101: and detecting the concentration of the refrigerant at the preset sampling point at the current moment.
Wherein the refrigerant concentration is the refrigerant concentration of the leaked refrigerant at or near the leak location in a small region. In a specific example, the refrigerant concentration (i.e., refrigerant concentration) may be detected by a corresponding refrigerant sensor.
The predetermined sampling points refer to a certain position outside the refrigerant circulation pipeline of the refrigerant, such as: the sensor is disposed at a pipe connection portion where refrigerant leakage is relatively likely to occur on the refrigerant circulation pipe, so that when the refrigerant leakage occurs, the concentration of the leaked refrigerant can be effectively detected.
S102: and determining the total refrigerant leakage amount up to the current moment according to the refrigerant concentration.
In a specific example, the fan operation parameter and the air conditioner operation space parameter may be obtained first, and the total refrigerant leakage amount may be obtained according to the refrigerant concentration, the fan operation parameter, and the air conditioner operation space parameter.
The fan operation parameters comprise the air volume generated by the indoor fan operation at the current moment and the starting moment of the indoor fan operation, and the air conditioner operation space parameters comprise the refrigerant density of the air conditioner operation space and the volume of the air conditioner operation space. For simplicity of description, the indoor fan may also be referred to as a fan.
For example: if the current time is t, the total refrigerant leakage amount from the time when the fan starts to operate (i.e. the starting time of the fan operation) to the current time t can be estimated according to the refrigerant concentration detected at the current time t, wherein the total refrigerant leakage amount is Mt。
In a specific application, the total refrigerant leakage amount may be obtained by, but is not limited to, the following formula:
Figure GDA0002605480780000071
wherein M istTo stop the total amount of refrigerant leakage at the present time t, QtThe air quantity generated by the operation of the fan at the current time t,
Figure GDA0002605480780000072
the concentration of the refrigerant at the air outlet of the air conditioner at the current moment t,
Figure GDA0002605480780000073
and p is the refrigerant density of the air conditioner air outlet, wherein t is the refrigerant concentration of the air conditioner air inlet at the current moment t. In addition, the starting time of the fan operation is recorded as 0 time, in this example, MtHas units of g, QtHas the unit of m3/h，
Figure GDA0002605480780000074
And
Figure GDA0002605480780000075
in ppm and rho in kg/m3And t is in seconds.
It can be seen that the total amount of refrigerant leakage MtThe calculation needs to be carried out by means of the refrigerant concentration and the density rho of the air inlet and the air outlet of the air conditioner, and the refrigerant concentration and the density rho of the air inlet and the air outlet of the air conditioner can be obtained in the following modes:
rho is the density of a refrigerant in an air-conditioning operation space (such as a room where an air conditioner is located) under temperature and atmospheric pressure;
Figure GDA0002605480780000081
the refrigerant concentration of the detected preset sampling point is taken, and because the refrigerant needs time for diffusion in the air-conditioning operation space, the refrigerant concentration at the air inlet of the air conditioner is not more than the average concentration of the refrigerant in the air-conditioning operation space, then the method comprises the following steps:
Figure GDA0002605480780000082
where V denotes a space size of an air-conditioning operation space (e.g., a room where an air conditioner is located), that is: volume, unit is taken as m3Therefore, the total refrigerant leakage amount M can be obtained by the current time ttThe following relationship is satisfied:
Figure GDA0002605480780000083
wherein M istWhen the minimum value is taken, the total refrigerant leakage quantity is Mt。
In the above description, the air-conditioning operation space is, for example, a room in which an air conditioner is located.
S103: and controlling the running state of the fan according to the total leakage amount of the refrigerant.
For example: the amount of the residual refrigerant in the air conditioner can be determined according to the refrigerant leakage total amount, when the residual refrigerant total amount is less, the fact that more refrigerants are leaked is described, along with the continuous operation of the fan, the leaked refrigerants are fully diffused into the air, at the moment, the phenomenon that the concentration of local refrigerants is too high is not easy to occur, therefore, the fan can be controlled to stop operating, on the contrary, although the fan is still operating, because the residual refrigerants in the air conditioner are more and are continuously leaked, it can be known that along with the continuous leakage, the leaked refrigerants are not fully diffused into the air, therefore, the fan needs to be continuously controlled to operate, the diffusion of the refrigerants is accelerated, and the harm caused by the too high concentration of the local refrigerants is avoided, for example: when the refrigerant is a flammable refrigerant, if the local refrigerant concentration is too high, fire may be caused.
Of course, when the fan is controlled to operate, the rotation speed of the fan may also be adjusted according to the refrigerant concentration, for example: if the fan operates for a period of time, the concentration of the refrigerant is still high, the rotating speed of the fan can be increased, otherwise, the rotating speed of the fan can be properly reduced, so that the waste of energy consumption in the operation process of the fan is avoided, and the refrigerant can be effectively diffused into the air.
In a specific example, the controlling the operation state of the fan according to the total refrigerant leakage amount includes: and determining the total amount of the residual refrigerant in the air conditioner according to the total amount of the refrigerant leakage, and controlling the fan to be shut down when the total amount of the residual refrigerant is smaller than a preset value, otherwise, controlling the fan to continue to operate.
For example: the refrigerant charging amount is known in advance, so that the total amount of residual refrigerants in the air conditioner can be determined according to the refrigerant leakage total amount and the refrigerant charging amount, when the total amount of the residual refrigerants is larger than a preset value, the fact that the total amount of the residual refrigerants in the air conditioner is relatively more is indicated, the residual refrigerants are continuously leaked, at the moment, the fan is controlled to continuously operate, the continuously leaked refrigerants are diffused into the air, and damage, such as fire, caused by overhigh concentration of local refrigerants is avoided. When the total amount of the residual refrigerant is smaller than the preset value, the fact that the total amount of the residual refrigerant in the air conditioner is small and basically leaks is indicated, at the moment, the leaked refrigerant is fully diffused into the air due to the operation of the fan, therefore, the fan can be controlled to stop, and the phenomenon that the concentration of the local refrigerant is too high can be avoided.
In the above examples, the preset value may be determined experimentally in advance, or empirically. Usually the preset values are set relatively small, for example: when the total charge amount is 10, the preset value may be set to 3 or less. In addition, the fan is generally referred to as an indoor fan, that is: the operation of the indoor fan can accelerate the circulation of the leaked refrigerant and reduce the local concentration of the leaked refrigerant.
According to the fan control method of the air conditioner, when the refrigerant of the air conditioner leaks, the leaked refrigerant can be effectively and fully diffused in the air through the operation of the fan, the damage caused by overhigh concentration of the local refrigerant is avoided, in addition, whether the refrigerant in the air conditioner is basically leaked and completed or not can be known according to the leakage total amount of the refrigerant, the fan is controlled to be shut down after the leakage is determined to be sufficient, the repeated starting and stopping of the fan when the refrigerant leaks are avoided, the service life of the air conditioner is prolonged, and meanwhile, the potential safety hazard caused by the leaked refrigerant is reduced.
In an embodiment of the present application, a fan control method of an air conditioner further includes: if the concentration of the refrigerant at the preset sampling point at the current moment reaches a first preset concentration, judging that the refrigerant leaks, and alarming; and when the concentration of the refrigerant reaches a second preset concentration, controlling the fan to start to operate, wherein the second preset concentration is greater than or equal to the first preset concentration. That is to say, when the refrigerant begins to leak, the local concentration of the leaked refrigerant is continuously increased, and at the moment, when the detected concentration reaches a certain amount (namely, the first preset concentration), a leakage alarm is performed, so that a user timely finds that when the concentration is continuously increased after further leakage, the concentration is excessively high (for example, the concentration is higher than the second preset concentration) to cause potential safety hazard, and therefore, the fan is controlled to start to operate to diffuse the refrigerant into the air, and the potential safety hazard caused by the local concentration is avoided.
It will be appreciated that the first predetermined concentration and the second predetermined concentration may be determined empirically or obtained experimentally.
Fig. 2 is a block diagram of a fan control system of an air conditioner according to an embodiment of the present application. As shown in fig. 2, a blower control system 200 of an air conditioner according to an embodiment of the present application includes: the detection module 210, the total refrigerant leakage amount calculation module 220, and the blower control module 230.
The detecting module 210 is configured to detect a refrigerant concentration at a predetermined sampling point at a current time. The total refrigerant leakage amount calculating module 220 is configured to determine the total refrigerant leakage amount up to the current time according to the refrigerant concentration. The fan control module 230 is configured to control an operation state of the indoor fan according to the total refrigerant leakage amount.
In the following description, the indoor fan may also be referred to as a fan for simplicity of description.
In an embodiment of the present application, the total refrigerant leakage amount calculating module 220 is configured to obtain a fan operation parameter and an air conditioner operation space parameter, and obtain the total refrigerant leakage amount according to the refrigerant concentration, the fan operation parameter, and the air conditioner operation space parameter.
In an embodiment of the present application, the fan operation parameters include an air volume generated by the fan operation at the current time and a starting time of the fan operation, and the air-conditioning operation space parameters include a refrigerant density of an air-conditioning operation space and a volume of the air-conditioning operation space.
In an embodiment of the present application, the total refrigerant leakage amount calculating module 220 obtains the total refrigerant leakage amount according to the following formula:
Figure GDA0002605480780000111
wherein, M istFor stopping the total refrigerant leakage amount at the current moment, QtThe air quantity generated by the operation of the fan at the current moment
Figure GDA0002605480780000112
The concentration of the refrigerant at the air outlet of the air conditioner at the current moment
Figure GDA0002605480780000113
And the p is the refrigerant density of the air conditioner air outlet, and t is the current time.
In an embodiment of the present application, the fan control module 230 is configured to determine a total amount of remaining refrigerants in the air conditioner according to the total refrigerant leakage amount, and control the fan to shut down when the total amount of the remaining refrigerants is smaller than a preset value, otherwise, control the fan to continue to operate.
According to fan control system of air conditioner according to this application embodiment, when the refrigerant of air conditioner takes place to leak, the operation through the fan can make the refrigerant of leaking fully diffuse in the air effectively, avoid the harm that local refrigerant concentration too high leads to, in addition, can learn whether basically leak the completion of the refrigerant in the air conditioner according to the refrigerant leakage total amount, and after confirming that leaks more fully, control fan shuts down, the repeated opening of fan stops when avoiding the refrigerant to leak, when promoting air conditioner life, reduce the potential safety hazard that the refrigerant of leaking brought.
It should be noted that a specific implementation manner of the fan control system of the air conditioner in the embodiment of the present application is similar to a specific implementation manner of the fan control method of the air conditioner in the embodiment of the present application, and please refer to the description of the method portion specifically, which is not described herein again.
Further, an embodiment of the present application discloses an air conditioner, including: the fan control system of the air conditioner according to any one of the above embodiments. This air conditioner is when the refrigerant takes place to leak, can make the refrigerant of leaking fully diffuse in the air effectively through the operation of fan, avoids the harm that local refrigerant concentration too high leads to, in addition, can learn whether basically leaks the completion of the refrigerant in the air conditioner according to the refrigerant leakage total amount to in the definite more abundant back of leaking, control fan shuts down, stops repeatedly opening of fan when avoiding the refrigerant to leak, when promoting air conditioner life, reduces the potential safety hazard that the refrigerant of leaking brought.
Further, an embodiment of the present application discloses a non-transitory computer-readable storage medium having a computer program stored thereon, the computer program, when executed by a processor, implementing the fan control method of an air conditioner according to any one of the above embodiments.
Further, an embodiment of the present application discloses an air conditioning apparatus having a computer program stored thereon, which when executed by a processor, implements the fan control method of an air conditioner according to any one of the above embodiments.
According to the air conditioning equipment of this application embodiment, when the refrigerant takes place to leak, the operation through the fan can make the refrigerant of leaking fully diffuse in the air effectively, avoid the harm that local refrigerant concentration too high leads to, in addition, can learn whether the refrigerant in the air conditioner leaks basically to accomplish according to the refrigerant leakage total amount, and after confirming that it is more abundant to leak, the control fan shuts down, the repeated opening of fan stops when avoiding the refrigerant to leak, when promoting air conditioner life, reduce the potential safety hazard that the refrigerant of leaking brought.
In one embodiment of the present application, the air conditioning device is, for example, an air conditioner.
In addition, other configurations and functions of the air conditioning apparatus according to the embodiment of the present application are known to those skilled in the art, and are not described herein in detail in order to reduce redundancy.
The non-transitory computer readable storage medium described above may take any combination of one or more computer readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM), a flash Memory, an optical fiber, a portable compact disc Read Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of Network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (12)

1.一种空调的风机控制方法，其特征在于，包括以下步骤：1. a fan control method of an air conditioner, is characterized in that, comprises the following steps: 检测当前时刻下预定采样点的冷媒浓度；Detect the refrigerant concentration at the predetermined sampling point at the current moment; 根据所述冷媒浓度确定截止到所述当前时刻的冷媒泄漏总量；Determine the total amount of refrigerant leakage up to the current moment according to the refrigerant concentration; 根据所述冷媒泄漏总量控制室内风机的运行状态；Control the running state of the indoor fan according to the total amount of refrigerant leakage; 其中，所述根据所述冷媒浓度确定截止到所述当前时刻的冷媒泄漏总量，包括：Wherein, determining the total amount of refrigerant leakage up to the current moment according to the refrigerant concentration includes: 获取风机运行参数以及空调运行空间参数；Obtain fan operating parameters and air conditioning operating space parameters; 根据所述冷媒浓度、所述风机运行参数以及空调运行空间参数得到所述冷媒泄漏总量；其中，确定当前时刻空调出风口的冷媒浓度和进风口的冷媒浓度之间的浓度差，对所述当前时刻的室内风机运行产生的风量、所述浓度差和空调出风口的冷媒密度的乘积进行积分，以得到所述冷媒泄漏总量。The total amount of refrigerant leakage is obtained according to the refrigerant concentration, the fan operating parameters and the air conditioner operating space parameters; wherein the concentration difference between the refrigerant concentration at the air outlet of the air conditioner and the refrigerant concentration at the air inlet at the current moment is determined, and the The product of the air volume generated by the operation of the indoor fan at the current moment, the concentration difference and the refrigerant density at the air outlet of the air conditioner is integrated to obtain the total amount of refrigerant leakage. 2.根据权利要求1所述的空调的风机控制方法，其特征在于，所述风机运行参数包括当前时刻的室内风机运行产生的风量以及室内风机运行的起始时刻，所述空调运行空间参数包括空调运行空间的冷媒密度以及所述空调运行空间的体积。2 . The fan control method of an air conditioner according to claim 1 , wherein the fan operation parameters include the air volume generated by the operation of the indoor fan at the current moment and the start time of the operation of the indoor fan, and the air conditioner operation space parameters include 2 . The refrigerant density of the air-conditioning operating space and the volume of the air-conditioning operating space. 3.根据权利要求2所述的空调的风机控制方法，其特征在于，所述冷媒泄漏总量通过如下公式得到，所述公式为：3. The fan control method of an air conditioner according to claim 2, wherein the total amount of refrigerant leakage is obtained by the following formula, and the formula is:
Figure FDA0002935832670000011
Figure FDA0002935832670000011
 其中，所述Mt为截止到所述当前时刻的冷媒泄漏总量，所述Qt为所述当前时刻的室内风机运行产生的风量，所述
Figure FDA0002935832670000012
为所述当前时刻空调出风口的冷媒浓度，所述
Figure FDA0002935832670000021
为所述当前时刻空调进风口的冷媒浓度，所述ρ为空调出风口的冷媒密度，所述t为所述当前时刻。Wherein, the M t is the total amount of refrigerant leakage up to the current moment, the Q t is the air volume generated by the operation of the indoor fan at the current moment, and the
Figure FDA0002935832670000012
is the refrigerant concentration at the air outlet of the air conditioner at the current moment, the
Figure FDA0002935832670000021
is the refrigerant concentration at the air inlet of the air conditioner at the current moment, the ρ is the refrigerant density at the air outlet of the air conditioner, and the t is the current moment. 4.根据权利要求1-3任一项所述的空调的风机控制方法，其特征在于，所述根据所述冷媒泄漏总量控制室内风机的运行状态，包括：4. The fan control method of an air conditioner according to any one of claims 1-3, wherein the controlling the operation state of the indoor fan according to the total amount of refrigerant leakage comprises: 根据所述冷媒泄漏总量确定所述空调中的剩余冷媒总量；Determine the total amount of remaining refrigerant in the air conditioner according to the total amount of refrigerant leakage; 当所述剩余冷媒总量小于预设值时，控制所述室内风机关机，否则，控制所述室内风机继续运行。When the total amount of the remaining refrigerant is less than a preset value, the indoor fan is controlled to be turned off, otherwise, the indoor fan is controlled to continue to run. 5.根据权利要求1所述的空调的风机控制方法，其特征在于，还包括：5. The fan control method of an air conditioner according to claim 1, characterized in that, further comprising: 如果当前时刻下预定采样点的冷媒浓度达到第一预定浓度时，判断所述冷媒发生泄漏，进行报警；If the refrigerant concentration at the predetermined sampling point at the current moment reaches the first predetermined concentration, it is judged that the refrigerant leaks, and an alarm is issued; 当所述冷媒浓度达到第二预定浓度时，控制所述室内风机开始运行，其中，所述第二预定浓度大于或等于所述第一预定浓度。When the refrigerant concentration reaches a second predetermined concentration, the indoor fan is controlled to start running, wherein the second predetermined concentration is greater than or equal to the first predetermined concentration. 6.一种空调的风机控制系统，其特征在于，包括：6. A fan control system of an air conditioner, characterized in that, comprising: 检测模块，用于检测当前时刻下预定采样点的冷媒浓度；The detection module is used to detect the refrigerant concentration at the predetermined sampling point at the current moment; 冷媒泄漏总量计算模块，用于根据所述冷媒浓度确定截止到所述当前时刻的冷媒泄漏总量；a total amount of refrigerant leakage calculation module, configured to determine the total amount of refrigerant leakage up to the current moment according to the refrigerant concentration; 风机控制模块，用于根据所述冷媒泄漏总量控制室内风机的运行状态；a fan control module, used for controlling the running state of the indoor fan according to the total amount of refrigerant leakage; 其中，所述冷媒泄漏总量计算模块用于获取风机运行参数以及空调运行空间参数，并根据所述冷媒浓度、所述风机运行参数以及空调运行空间参数得到所述冷媒泄漏总量；其中，确定当前时刻空调出风口的冷媒浓度和进风口的冷媒浓度之间的浓度差，对所述当前时刻的室内风机运行产生的风量、所述浓度差和空调出风口的冷媒密度的乘积进行积分，以得到所述冷媒泄漏总量。Wherein, the total amount of refrigerant leakage calculation module is used to obtain the fan operation parameter and the air conditioner operation space parameter, and obtain the total amount of refrigerant leakage according to the refrigerant concentration, the fan operation parameter and the air conditioner operation space parameter; wherein, determine The concentration difference between the refrigerant concentration at the air outlet of the air conditioner at the current moment and the refrigerant concentration at the air inlet is integrated with the product of the air volume generated by the operation of the indoor fan at the current moment, the concentration difference and the refrigerant density at the air outlet of the air conditioner, to obtain Obtain the total amount of refrigerant leakage. 7.根据权利要求6所述的空调的风机控制系统，其特征在于，所述风机运行参数包括当前时刻的室内风机运行产生的风量以及室内风机运行的起始时刻，所述空调运行空间参数包括空调运行空间的冷媒密度以及所述空调运行空间的体积。7 . The fan control system of an air conditioner according to claim 6 , wherein the fan operation parameters include the air volume generated by the operation of the indoor fan at the current moment and the start time of the operation of the indoor fan, and the air conditioner operation space parameters include: 8 . The refrigerant density of the air-conditioning operating space and the volume of the air-conditioning operating space. 8.根据权利要求7所述的空调的风机控制系统，其特征在于，所述冷媒泄漏总量计算模块通过如下公式得到所述冷媒泄漏总量，所述公式为：8 . The fan control system of an air conditioner according to claim 7 , wherein the total amount of refrigerant leakage is obtained by the calculation module of the total amount of refrigerant leakage through the following formula, and the formula is: 8 .
Figure FDA0002935832670000031
Figure FDA0002935832670000031
 其中，所述Mt为截止到所述当前时刻的冷媒泄漏总量，所述Qt为所述当前时刻的室内风机运行产生的风量，所述
Figure FDA0002935832670000032
为所述当前时刻空调出风口的冷媒浓度，所述
Figure FDA0002935832670000033
为所述当前时刻空调进风口的冷媒浓度，所述ρ为空调出风口的冷媒密度，所述t为所述当前时刻。Wherein, the M t is the total amount of refrigerant leakage up to the current moment, the Q t is the air volume generated by the operation of the indoor fan at the current moment, and the
Figure FDA0002935832670000032
is the refrigerant concentration at the air outlet of the air conditioner at the current moment, the
Figure FDA0002935832670000033
is the refrigerant concentration at the air inlet of the air conditioner at the current moment, the ρ is the refrigerant density at the air outlet of the air conditioner, and the t is the current moment. 9.根据权利要求6-8任一项所述的空调的风机控制系统，其特征在于，所述风机控制模块用于根据所述冷媒泄漏总量确定所述空调中的剩余冷媒总量，并当所述剩余冷媒总量小于预设值时时，控制所述室内风机关机，否则，控制所述室内风机继续运行。9. The fan control system of an air conditioner according to any one of claims 6-8, wherein the fan control module is configured to determine the total amount of remaining refrigerant in the air conditioner according to the total amount of refrigerant leakage, and When the total amount of the remaining refrigerant is less than a preset value, the indoor fan is controlled to be turned off, otherwise, the indoor fan is controlled to continue to run. 10.一种空调，其特征在于，包括：根据权利要求6-9任一项所述的空调的风机控制系统。10. An air conditioner, characterized by comprising: the fan control system of the air conditioner according to any one of claims 6-9. 11.一种非临时性计算机可读存储介质，其上存储有空调的风机控制程序，该风机控制程序被处理器执行时实现权利要求1-5任一所述的空调的风机控制方法。11. A non-transitory computer-readable storage medium storing a fan control program of an air conditioner, the fan control program implementing the fan control method of any one of claims 1-5 when the fan control program is executed by a processor. 12.一种空气调节设备，其特征在于，包括存储器、处理器及存储在存储器上并可在处理器上运行的空调的风机控制程序，所述处理器执行所述风机控制程序时实现权利要求1-5任一所述的空调的风机控制方法。12. An air conditioning device, characterized in that it comprises a memory, a processor, and a fan control program of an air conditioner stored in the memory and running on the processor, wherein the processor implements the claims when executing the fan control program The fan control method of any one of 1-5 air conditioners.
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