CN110617604A - Control method, device and equipment for preventing cold air of air conditioner, air conditioner and storage medium - Google Patents
Control method, device and equipment for preventing cold air of air conditioner, air conditioner and storage medium Download PDFInfo
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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
- F24F11/48—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring prior to normal operation, e.g. pre-heating or pre-cooling
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Abstract
The invention relates to a method, a device, equipment, an air conditioner and a storage medium for controlling cold air prevention of the air conditioner, wherein the method comprises the following steps: when an indoor unit of the air conditioner is normally started and is in a cold air prevention mode, the running information of the air conditioner, such as the average temperature of an inlet and an outlet of a heat exchanger when a fan of the indoor unit is not started, the running time of the indoor unit in the cold air prevention mode, the opening and closing state of a high-voltage regulating switch in the air conditioner, and the like, is obtained; and when the average temperature of the inlet and the outlet is greater than or equal to the current exit temperature, and/or the duration is greater than or equal to the preset duration, and/or the on-off state of the high-voltage regulating switch is in an off state, the air conditioner is controlled to exit the cold air prevention mode, so that the air conditioner can still exit the cold air prevention mode under the conditions that a pressure sensor is not arranged and a temperature sensing bulb is not arranged in the heat exchanger. By adopting the technical scheme of the invention, the control of cold air prevention of the air conditioner can be realized under the condition of reducing the cost of the air conditioner.
Description
Technical Field
The invention relates to the technical field of harmonic processing, in particular to a method, a device, equipment, an air conditioner and a storage medium for controlling cold air prevention of the air conditioner.
Background
At present, in a multi-split system, when an indoor unit is started, a cold air prevention mode is generally entered, namely, an internal fan stops rotating when the indoor unit is started, and the indoor unit is started after the high voltage of the system reaches a certain value, so that the situation that the air outlet temperature is low and the comfort is influenced is prevented.
At present, aiming at when to exit the cold air prevention mode, a method which is often adopted is to add a pressure sensor and directly control an inner machine to exit the cold air prevention mode by measuring the pressure of a condensation side; or, a temperature sensing bulb is arranged in the middle of the heat exchanger of the indoor unit, and the high-pressure value of the system is simulated through the temperature measured by the temperature sensing bulb, so that the indoor unit is controlled to exit the cold air prevention mode.
However, in order to reduce the cost of the air conditioner, the air conditioner is not provided with a pressure sensor and a temperature sensing bulb is not arranged in the heat exchanger, and in this case, the air conditioner cannot exit the cold air prevention mode according to the prior art method.
Therefore, how to control the air conditioner to prevent cold air under the condition of reducing the air conditioner cost is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a method, an apparatus, a device, an air conditioner and a storage medium for controlling air conditioning to prevent cold wind, so as to achieve the control of air conditioning to prevent cold wind under the condition of reducing the cost of the air conditioner.
In order to achieve the above object, the present invention provides a method for controlling an air conditioner to prevent cold wind, comprising:
when an indoor unit of an air conditioner is normally started and is in a cold air prevention mode, acquiring running information of the air conditioner;
judging whether the operation information meets a preset cold air exit prevention condition or not;
if the running information meets the cold wind prevention exit condition, controlling the air conditioner to exit the cold wind prevention mode;
the running information comprises the average temperature of an inlet and an outlet of a heat exchanger when the fan of the indoor unit is not started, the running time of the indoor unit in the cold air prevention mode and the on-off state of a high-voltage adjusting switch in the air conditioner;
correspondingly, the cold air exit prevention condition comprises that the average temperature of the inlet and the outlet is greater than or equal to the current exit temperature, and/or the duration is greater than or equal to the preset duration, and/or the on-off state of the high-voltage regulating switch is an off state.
Further, in the above method for controlling an air conditioner to prevent cold wind, before determining whether the operation information satisfies a preset cold wind exit prevention condition, the method further includes:
acquiring the current outdoor environment temperature;
respectively comparing the current outdoor environment temperature with a first preset outdoor temperature and a second preset outdoor temperature to obtain a comparison result; wherein the first preset outdoor temperature is less than the second preset outdoor temperature;
if the comparison result shows that the current outdoor environment temperature is less than or equal to the first preset outdoor temperature, taking the sum of the original exit temperature and a preset first correction parameter as the current exit temperature;
if the comparison result shows that the current outdoor environment temperature is greater than the first preset outdoor temperature and the current outdoor environment temperature is less than the second preset outdoor temperature, taking the original exit temperature as the current exit temperature;
and if the comparison result shows that the current outdoor environment temperature is greater than or equal to the second preset outdoor temperature, taking the difference value between the original exit temperature and a preset first correction parameter as the current exit temperature.
Further, in the above control method for preventing cold wind of an air conditioner, the operation information further includes an inlet temperature of a heat exchanger of the indoor unit and an inlet-outlet temperature of the heat exchanger;
the judging whether the operation information meets the preset cold air exit prevention condition or not comprises the following steps:
and if the inlet temperature and the outlet temperature are detected to be within a preset effective temperature range value, judging whether the operation information meets a preset cold air exit prevention condition.
Further, in the above method for controlling an air conditioner to prevent cold wind, the air conditioner is a multi-split air conditioner, and the method further includes:
detecting whether the indoor unit is the first started indoor unit in the multi-split air conditioner;
if the indoor unit is the first started indoor unit in the multi-split air conditioner, taking the difference value between the original exit temperature and a preset second correction parameter as the current exit temperature;
and if the indoor unit is not the first started indoor unit in the multi-split system, taking the original exit temperature as the current exit temperature.
Furthermore, the control method for preventing cold wind of the air conditioner is applied to the air conditioner without a pressure sensor and a heat exchanger temperature detection device.
The present invention also provides a cold air prevention control device for an air conditioner, comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the running information of the air conditioner when an indoor unit of the air conditioner is normally started and is in a cold air prevention mode;
the judging module is used for judging whether the running information meets a preset cold air exit prevention condition;
the control module is used for controlling the air conditioner to exit the cold air prevention mode if the operation information meets the cold air prevention exit condition;
the running information comprises the average temperature of an inlet and an outlet of a heat exchanger when the fan of the indoor unit is not started, the running time of the indoor unit in the cold air prevention mode and the on-off state of a high-voltage adjusting switch in the air conditioner;
correspondingly, the cold air exit prevention condition comprises that the average temperature of the inlet and the outlet is greater than or equal to the current exit temperature, and/or the duration is greater than or equal to the preset duration, and/or the on-off state of the high-voltage regulating switch is an off state.
Further, in the above control device for preventing cold air of an air conditioner, the obtaining module is further configured to obtain a current outdoor environment temperature;
the judging module is further configured to:
respectively comparing the current outdoor environment temperature with a first preset outdoor temperature and a second preset outdoor temperature to obtain a comparison result; wherein the first preset outdoor temperature is less than the second preset outdoor temperature;
if the comparison result shows that the current outdoor environment temperature is less than or equal to the first preset outdoor temperature, taking the sum of the original exit temperature and a preset first correction parameter as the current exit temperature;
if the comparison result shows that the current outdoor environment temperature is greater than the first preset outdoor temperature and the current outdoor environment temperature is less than the second preset outdoor temperature, taking the original exit temperature as the current exit temperature;
and if the comparison result shows that the current outdoor environment temperature is greater than or equal to the second preset outdoor temperature, taking the difference value between the original exit temperature and a preset first correction parameter as the current exit temperature.
Further, in the above control device for preventing cold wind of an air conditioner, the operation information further includes an inlet temperature of a heat exchanger of the indoor unit and an inlet-outlet temperature of the heat exchanger;
the judging module is further configured to:
and if the inlet temperature and the outlet temperature are detected to be within a preset effective temperature range value, judging whether the operation information meets a preset cold air exit prevention condition.
The present invention also provides a control apparatus for preventing cold wind of an air conditioner, comprising: a processor and a memory;
the processor is connected with the memory:
the processor is used for calling and executing the program stored in the memory;
the memory is used for storing the program, and the program is at least used for executing the control method for preventing the cold air of the air conditioner.
The invention also provides an air conditioner which is provided with the cold air prevention control equipment for the air conditioner.
Further, in the air conditioner, the air conditioner is a multi-split air conditioner.
The present invention also provides a storage medium, characterized in that a computer program is stored thereon, which when executed by a processor, implements the respective steps of the air-conditioning cold-air-protection control method as set forth in any one of the above.
According to the control method, the device, the equipment, the air conditioner and the storage medium for preventing cold wind of the air conditioner, when an indoor unit of the air conditioner is normally started and is in the cold wind prevention mode, the running information of the air conditioner, such as the average temperature of an inlet and an outlet of a heat exchanger when a fan of the indoor unit is not started, the running time of the indoor unit in the cold wind prevention mode, the opening and closing state of a high-voltage regulating switch in the air conditioner, and the like, is obtained; and when the average temperature of the inlet and the outlet is greater than or equal to the current exit temperature, and/or the duration is greater than or equal to the preset duration, and/or the on-off state of the high-voltage regulating switch is in an off state, the air conditioner is controlled to exit the cold air prevention mode, so that the air conditioner can still exit the cold air prevention mode under the conditions that a pressure sensor is not arranged and a temperature sensing bulb is not arranged in the heat exchanger. By adopting the technical scheme of the invention, the control of cold air prevention of the air conditioner can be realized under the condition of reducing the cost of the air conditioner.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for controlling an air conditioner to prevent cold air according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a filtering apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural view of the air conditioner cold air prevention control apparatus of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Fig. 1 is a flowchart of an embodiment of a method for controlling an air conditioner to prevent cold air, and as shown in fig. 1, the method for controlling an air conditioner to prevent cold air may specifically include the following steps:
100. when an indoor unit of the air conditioner is normally started and is in a cold air prevention mode, acquiring running information of the air conditioner;
in practical application, after receiving a heating instruction, the air conditioner starts to heat the refrigerant of the indoor unit, but the heat exchanger can be heated only after the refrigerant is heated for a certain time, so that in order to prevent the air conditioner from blowing out cold air, the air conditioner needs to enter a cold air prevention mode so that the heat exchanger is heated and exits the cold air prevention mode to blow air, and therefore the air blown out by the air conditioner is hot air.
However, in order to reduce the production cost of the air conditioner, an air conditioner manufacturer often does not set a pressure sensor in the air conditioner and does not arrange a temperature sensing bulb in the heat exchanger, and other ways are needed to enable the air conditioner to exit the cold air prevention mode. The temperature sensing bulbs are arranged at the inlet and the outlet of the heat exchanger, at the moment, when the fan is not started, condensing media in the heat exchanger do not exchange heat with outside air, the inlet temperature of the heat exchanger and the outlet temperature of the heat exchanger can represent the temperature of condensing liquid in the heat exchanger, the temperature of the condensing liquid is related to the high pressure of the air conditioner, and the temperature of the condensing liquid can be obtained according to the inlet temperature of the heat exchanger and the outlet temperature of the heat exchanger. In addition, a time length for exiting the cold air prevention mode can be set for each air conditioner according to actual experience as a preset time length, and at the moment, the air conditioner can exit the cold air prevention mode only when the running time length of the indoor unit in the cold air prevention mode reaches the preset time length. And thirdly, whether the air conditioner exits the cold air prevention mode can be determined according to the opening and closing state of a high-voltage adjusting switch of an outdoor unit of the air conditioner.
Therefore, in this embodiment, when the air conditioner operates in the cold air prevention mode, the operation information of the air conditioner may be acquired, so as to determine when to exit the cold air prevention mode according to the operation information of the air conditioner. The operation information of the air conditioner may include, but is not limited to, an average temperature of an inlet and an outlet of the heat exchanger when the fan is not started in the indoor unit of the air conditioner, a time length of the indoor unit operating in the cold air prevention mode, and an on-off state of a high-voltage adjusting switch in the air conditioner. When the air conditioner is a multi-split air conditioner, the average temperature of the inlet and the outlet of the heat exchanger is the average temperature of the inlet and the outlet of the heat exchanger of a plurality of indoor units.
In a concrete implementation process, because when the air conditioning unit is in the mode of heating, the indoor set belongs to the condensation side, and the off-premises station belongs to the evaporation side, and higher as outdoor temperature, evaporation pressure is also higher, and the condensation pressure that corresponds is also higher and the rising speed is also faster, and there is hysteresis quality when the thermal bulb measures the pipe temperature, and when outdoor ambient temperature is higher, the condensation temperature rises faster, so need the earlier cold wind mode of preventing that withdraws from of indoor set, prevent that the system condensation temperature is higher and even appear high-pressure protection. When the outdoor environment temperature is low, the condensation temperature rises slowly, so the indoor unit needs to exit the cold air prevention mode for a long time to ensure that hot air is blown out.
Therefore, in this embodiment, the current outdoor environment temperature of the position where the air conditioner is located may be obtained, and the current outdoor environment temperature is respectively compared with the first preset outdoor temperature and the second preset outdoor temperature to obtain a comparison result; the first preset outdoor temperature is lower than the second preset outdoor temperature; if the obtained comparison result shows that the current outdoor environment temperature is less than or equal to a first preset outdoor temperature, taking the sum of the original exit temperature and a preset first correction parameter as the current exit temperature; if the comparison result shows that the current outdoor environment temperature is greater than the first preset outdoor temperature and the current outdoor environment temperature is less than the second preset outdoor temperature, taking the original exit temperature as the current exit temperature; and if the comparison result shows that the current outdoor environment temperature is greater than or equal to a second preset outdoor temperature, taking the difference value between the original exit temperature and a preset first correction parameter as the current exit temperature. For example, the first preset outdoor temperature is preferably-10 ℃, the second preset outdoor temperature is preferably 10 ℃, the range of the first correction coefficient is preferably 0 to 3, and in the present embodiment, the first correction coefficient is preferably 1.
101. Judging whether the running information of the air conditioner meets a preset cold air exit prevention condition or not;
specifically, the preset cold air exit prevention condition in this embodiment includes that the average temperature of the inlet and the outlet is greater than or equal to the current exit temperature, and/or the operation time of the indoor unit in the cold air prevention mode is greater than or equal to the preset time, and/or the on-off state of the high-voltage adjusting switch is an off state. Therefore, when the operation information of the air conditioner is acquired, whether the operation information of the air conditioner meets the preset cold air exit prevention condition can be judged according to the cold air exit prevention condition.
It should be noted that, in this embodiment, before step 101 is executed, it is required to detect whether both the inlet temperature of the heat exchanger and the outlet temperature of the heat exchanger are within the preset effective temperature range value. In this embodiment, if it is detected that both the inlet temperature of the heat exchanger and the outlet temperature of the heat exchanger are within the preset effective temperature range value, step 101 "determining whether the operation information meets the preset cold wind exit prevention condition" may be performed.
102. And if the running information of the air conditioner meets the cold wind prevention exit condition, controlling the air conditioner to exit the cold wind prevention mode.
In this embodiment, if it is determined that the operation information of the air conditioner satisfies the cold air exit prevention condition, the air conditioner may be controlled to exit the cold air exit prevention mode, so that the fan of the indoor unit is started and blows air in a preset manner. For example, the fan may be operated at a lower wind speed for a certain time and then operated at a set wind speed.
According to the control method for preventing the cold air of the air conditioner, when the indoor unit of the air conditioner is normally started and is in the cold air prevention mode, the operation information of the air conditioner, such as the average temperature of the inlet and the outlet of the heat exchanger when the fan of the indoor unit is not started, the running time of the indoor unit in the cold air prevention mode, the opening and closing state of a high-voltage adjusting switch in the air conditioner, and the like, is obtained; and when the average temperature of the inlet and the outlet is greater than or equal to the current exit temperature, and/or the duration is greater than or equal to the preset duration, and/or the on-off state of the high-voltage regulating switch is in an off state, the air conditioner is controlled to exit the cold air prevention mode, so that the air conditioner can still exit the cold air prevention mode under the conditions that a pressure sensor is not arranged and a temperature sensing bulb is not arranged in the heat exchanger. By adopting the technical scheme of the invention, the control of cold air prevention of the air conditioner can be realized under the condition of reducing the cost of the air conditioner.
In practical application, the air conditioner still blows out cold air when exiting the cold air prevention mode in advance, or the air conditioner still blows out cold air when exiting the cold air prevention mode in time, so that high-voltage protection can be caused.
In a specific implementation process, before step 103, a first difference between an average temperature of an inlet and an outlet of the heat exchanger and a current exit temperature, and a second difference between a time length for which the indoor unit really operates in the cold air prevention mode and a preset time length may also be determined. Thus, when step 103 is executed, if it is determined that the running time of the indoor unit in the cold air prevention mode is longer than or equal to the preset time, and the first difference between the average temperature of the inlet and the outlet of the heat exchanger and the current exit temperature is within the first preset range, it indicates that the heat exchanger has been heated to the temperature of the hot air, and at this time, the air conditioner is allowed to exit the cold air prevention mode. Otherwise, the temperature of the heat exchanger is not increased to the temperature of the hot air, and at the moment, the air conditioner is allowed to exit the cold air prevention mode after continuously waiting for a certain time.
Similarly, in this embodiment, if it is determined that the average temperature of the inlet and the outlet of the heat exchanger is greater than or equal to the current exit temperature, and a second difference between the time length of the indoor unit operating in the cold air prevention mode and the preset time length is within a second preset range, which indicates that the temperature of the heat exchanger is raised to the temperature of the hot air blowing, at this time, the air conditioner is allowed to exit the cold air prevention mode. Otherwise, the temperature of the heat exchanger is not increased to the temperature of the hot air, and at the moment, the air conditioner is allowed to exit the cold air prevention mode after continuously waiting for a certain time.
In one implementation, the air conditioner of the present embodiment is preferably a multi-split air conditioner. Therefore, the use of the indoor unit cold air prevention control method in the multi-split air conditioner in the prior art cannot be influenced, and other developed indoor units can be matched, so that the indoor unit can be accurately controlled to exit from the cold air prevention mode on the premise of not influencing the wildcard property of the multi-split air conditioner, and the comfort of a user is not influenced.
In practical application, when the indoor unit is started for the first time, the temperature of an inlet pipe and an outlet pipe of the indoor unit is lower and theoretically equal to the indoor environment temperature, the temperature rises from the relatively lower temperature to the exit temperature when the indoor unit is started, the required time is long, and the temperature measured by the temperature sensing bulb has hysteresis, so that the indoor unit needs to exit the cold air prevention mode as early as possible. If the system does not start the indoor unit for the first time, but starts the system, the existing indoor unit in the system is in heating operation, and the temperature of the inlet and outlet pipe of the newly started indoor unit is influenced by the refrigerant on the exhaust side and can be higher than the indoor environment temperature, even higher than the exit temperature, so the system does not need to exit the cold air prevention mode as early as possible. Therefore, in this embodiment, it is necessary to detect whether the indoor unit is the first powered-on indoor unit in the multi-split air conditioner; if the indoor unit is the first started indoor unit in the multi-split air conditioner, taking the difference value between the original exit temperature and a preset second correction parameter as the current exit temperature so as to exit the cold air prevention mode as soon as possible; and if the indoor unit is not the first started indoor unit in the multi-split system, taking the original exit temperature as the current exit temperature. The second correction parameter in the present embodiment is preferably the same as the first correction parameter.
In order to be more comprehensive, the application also provides a control device for preventing cold wind of the air conditioner, which corresponds to the control method for preventing cold wind of the air conditioner provided by the embodiment of the invention. Fig. 2 is a schematic structural diagram of an embodiment of a filter device according to the present invention, and as shown in fig. 2, the control device for preventing cold wind of an air conditioner of the present embodiment includes an obtaining module 10, a determining module 11, and a control module 12.
The system comprises an acquisition module 10, a control module and a control module, wherein the acquisition module is used for acquiring the running information of the air conditioner when an indoor unit of the air conditioner is normally started and is in a cold air prevention mode;
the running information comprises the average temperature of an inlet and an outlet of the heat exchanger when the fan of the indoor unit is not started, the running time of the indoor unit in the cold air prevention mode and the opening and closing state of a high-voltage adjusting switch in the air conditioner.
The judging module 11 is used for judging whether the operation information of the air conditioner meets a preset cold air exit prevention condition;
the cold air exit prevention condition comprises that the average temperature of an inlet and an outlet of the heat exchanger is greater than or equal to the current exit temperature, and/or the running time of the indoor unit in the cold air prevention mode is greater than or equal to the preset time, and/or the on-off state of the high-voltage regulating switch is an off state.
And the control module 12 is used for controlling the air conditioner to exit the cold air prevention mode if the operation information of the air conditioner meets the cold air prevention exit condition.
According to the control device for preventing cold wind of the air conditioner, when the indoor unit of the air conditioner is normally started and is in the cold wind prevention mode, the operation information of the air conditioner, such as the average temperature of the inlet and the outlet of the heat exchanger when the fan of the indoor unit is not started, the running time of the indoor unit in the cold wind prevention mode, the opening and closing state of a high-voltage adjusting switch in the air conditioner, and the like, is obtained; and when the average temperature of the inlet and the outlet is greater than or equal to the current exit temperature, and/or the duration is greater than or equal to the preset duration, and/or the on-off state of the high-voltage regulating switch is in an off state, the air conditioner is controlled to exit the cold air prevention mode, so that the air conditioner can still exit the cold air prevention mode under the conditions that a pressure sensor is not arranged and a temperature sensing bulb is not arranged in the heat exchanger. By adopting the technical scheme of the invention, the control of cold air prevention of the air conditioner can be realized under the condition of reducing the cost of the air conditioner.
In a specific implementation process, the obtaining module 10 is further configured to obtain a current outdoor environment temperature;
the judging module 11 is further configured to:
respectively comparing the current outdoor environment temperature with a first preset outdoor temperature and a second preset outdoor temperature to obtain a comparison result; the first preset outdoor temperature is lower than the second preset outdoor temperature;
if the comparison result shows that the current outdoor environment temperature is less than or equal to a first preset outdoor temperature, taking the sum of the original exit temperature and a preset first correction parameter as the current exit temperature;
if the comparison result shows that the current outdoor environment temperature is greater than the first preset outdoor temperature and the current outdoor environment temperature is less than the second preset outdoor temperature, taking the original exit temperature as the current exit temperature;
and if the comparison result shows that the current outdoor environment temperature is greater than or equal to a second preset outdoor temperature, taking the difference value between the original exit temperature and a preset first correction parameter as the current exit temperature.
Further, in the above embodiment, the operation information of the air conditioner further includes an inlet temperature of a heat exchanger of the indoor unit and an inlet-outlet temperature of the heat exchanger;
the judging module 11 is further configured to judge whether the operation information of the air conditioner meets a preset cold air exit prevention condition if it is detected that the inlet temperature of the heat exchanger and the inlet and outlet temperature of the heat exchanger are both within a preset effective temperature range value.
In a specific implementation process, the air conditioner of this embodiment is preferably a multi-split air conditioner, and the determining module 11 is further configured to:
detecting whether the indoor unit is the first started indoor unit in the multi-split air conditioner;
if the indoor unit is the first started indoor unit in the multi-split air conditioner, taking the difference value between the original exit temperature and a preset second correction parameter as the current exit temperature;
and if the indoor unit is not the first started indoor unit in the multi-split system, taking the original exit temperature as the current exit temperature.
In one specific implementation, the control module 12 is further configured to:
determining a first difference value between the average temperature of an inlet and an outlet of the heat exchanger and the current exit temperature, and a second difference value between the running time length of the indoor unit in the cold air prevention mode and the preset time length;
if the running time of the indoor unit in the cold air prevention mode is longer than or equal to the preset time and the first difference value is within the second preset range, controlling the air conditioner to exit the cold air prevention mode; or
And if the average temperature of the inlet and the outlet is greater than or equal to the current exit temperature and the second difference value is within a second preset range, controlling the air conditioner to exit the cold air prevention mode.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
In order to be more comprehensive, the application also provides a control device for preventing cold wind of the air conditioner, which corresponds to the control method for preventing cold wind of the air conditioner provided by the embodiment of the invention. Fig. 3 is a schematic structural diagram of the control apparatus for preventing cold wind of an air conditioner according to the present invention, and as shown in fig. 3, the filter apparatus of the present embodiment may include a processor 20 and a memory 21;
the processor 20 is connected to a memory 21:
wherein, the processor 20 is configured to call and execute the program stored in the memory 21;
the memory 21 is configured to store the program, and the program is at least configured to execute the method for controlling the air conditioner to prevent cold wind shown in the above embodiment.
In order to be more comprehensive, the application also provides an air conditioner corresponding to the control method for preventing cold air of the air conditioner provided by the embodiment of the invention. The air conditioner of the present embodiment is provided with the control apparatus for preventing cold wind of the air conditioner as shown in the above embodiments. Wherein the air conditioner is preferably a multi-split air conditioner.
In order to be more comprehensive, the present application also provides a storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the control method of the air conditioner according to the above embodiments, corresponding to the control method of the air conditioner against cold wind provided by the embodiments of the present invention.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (12)
1. A method for controlling cold air prevention of an air conditioner is characterized by comprising the following steps:
when an indoor unit of an air conditioner is normally started and is in a cold air prevention mode, acquiring running information of the air conditioner;
judging whether the operation information meets a preset cold air exit prevention condition or not;
if the running information meets the cold wind prevention exit condition, controlling the air conditioner to exit the cold wind prevention mode;
the running information comprises the average temperature of an inlet and an outlet of a heat exchanger when the fan of the indoor unit is not started, the running time of the indoor unit in the cold air prevention mode and the on-off state of a high-voltage adjusting switch in the air conditioner;
correspondingly, the cold air exit prevention condition comprises that the average temperature of the inlet and the outlet is greater than or equal to the current exit temperature, and/or the duration is greater than or equal to the preset duration, and/or the on-off state of the high-voltage regulating switch is an off state.
2. The method for controlling an air conditioner to prevent cold wind according to claim 1, wherein before the step of determining whether the operation information satisfies a preset cold wind exit prevention condition, the method further comprises:
acquiring the current outdoor environment temperature;
respectively comparing the current outdoor environment temperature with a first preset outdoor temperature and a second preset outdoor temperature to obtain a comparison result; wherein the first preset outdoor temperature is less than the second preset outdoor temperature;
if the comparison result shows that the current outdoor environment temperature is less than or equal to the first preset outdoor temperature, taking the sum of the original exit temperature and a preset first correction parameter as the current exit temperature;
if the comparison result shows that the current outdoor environment temperature is greater than the first preset outdoor temperature and the current outdoor environment temperature is less than the second preset outdoor temperature, taking the original exit temperature as the current exit temperature;
and if the comparison result shows that the current outdoor environment temperature is greater than or equal to the second preset outdoor temperature, taking the difference value between the original exit temperature and a preset first correction parameter as the current exit temperature.
3. The method for controlling an air conditioner to prevent cold wind according to claim 2, wherein the operation information further includes an inlet temperature of a heat exchanger of the indoor unit and an inlet-outlet temperature of the heat exchanger;
the judging whether the operation information meets the preset cold air exit prevention condition or not comprises the following steps:
and if the inlet temperature and the outlet temperature are detected to be within a preset effective temperature range value, judging whether the operation information meets a preset cold air exit prevention condition.
4. The method for controlling an air conditioner to prevent cold wind according to claim 3, wherein the air conditioner is a multi-split air conditioner, and the method further comprises:
detecting whether the indoor unit is the first started indoor unit in the multi-split air conditioner;
if the indoor unit is the first started indoor unit in the multi-split air conditioner, taking the difference value between the original exit temperature and a preset second correction parameter as the current exit temperature;
and if the indoor unit is not the first started indoor unit in the multi-split system, taking the original exit temperature as the current exit temperature.
5. The method for controlling an air conditioner according to any one of claims 1 to 4, wherein the method is applied to an air conditioner not provided with a pressure sensor and a heat exchanger temperature detecting device.
6. A control device for preventing cold air of an air conditioner is characterized by comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the running information of the air conditioner when an indoor unit of the air conditioner is normally started and is in a cold air prevention mode;
the judging module is used for judging whether the running information meets a preset cold air exit prevention condition;
the control module is used for controlling the air conditioner to exit the cold air prevention mode if the operation information meets the cold air prevention exit condition;
the running information comprises the average temperature of an inlet and an outlet of a heat exchanger when the fan of the indoor unit is not started, the running time of the indoor unit in the cold air prevention mode and the on-off state of a high-voltage adjusting switch in the air conditioner;
correspondingly, the cold air exit prevention condition comprises that the average temperature of the inlet and the outlet is greater than or equal to the current exit temperature, and/or the duration is greater than or equal to the preset duration, and/or the on-off state of the high-voltage regulating switch is an off state.
7. The cold-proof control device of the air conditioner as claimed in claim 6, wherein the obtaining module is further configured to obtain a current outdoor ambient temperature;
the judging module is further configured to:
respectively comparing the current outdoor environment temperature with a first preset outdoor temperature and a second preset outdoor temperature to obtain a comparison result; wherein the first preset outdoor temperature is less than the second preset outdoor temperature;
if the comparison result shows that the current outdoor environment temperature is less than or equal to the first preset outdoor temperature, taking the sum of the original exit temperature and a preset first correction parameter as the current exit temperature;
if the comparison result shows that the current outdoor environment temperature is greater than the first preset outdoor temperature and the current outdoor environment temperature is less than the second preset outdoor temperature, taking the original exit temperature as the current exit temperature;
and if the comparison result shows that the current outdoor environment temperature is greater than or equal to the second preset outdoor temperature, taking the difference value between the original exit temperature and a preset first correction parameter as the current exit temperature.
8. The cold-air-protection control device of claim 7, wherein the operation information further includes an inlet temperature of a heat exchanger of the indoor unit and an inlet-outlet temperature of the heat exchanger;
the judging module is further configured to:
and if the inlet temperature and the outlet temperature are detected to be within a preset effective temperature range value, judging whether the operation information meets a preset cold air exit prevention condition.
9. A control apparatus of an air conditioner for preventing cold wind, comprising: a processor and a memory;
the processor is connected with the memory:
the processor is used for calling and executing the program stored in the memory;
the memory stores the program for executing at least the air conditioner cold-wind prevention control method according to any one of claims 1 to 5.
10. An air conditioner characterized in that the control apparatus of claim 9 is provided.
11. The air conditioner of claim 10, wherein the air conditioner is a multi-split air conditioner.
12. A storage medium having stored thereon a computer program which, when executed by a processor, implements the respective steps of the air-conditioning cold-wind prevention control method according to any one of claims 1 to 5.
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| CN201910887256.1A CN110617604B (en) | 2019-09-19 | 2019-09-19 | Control method, device and equipment for preventing cold air of air conditioner, air conditioner and storage medium |
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| CN110617604B (en) | 2020-09-22 |
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