CN117663422A - Control method and device of air conditioning equipment, air conditioning equipment and storage medium - Google Patents
Control method and device of air conditioning equipment, air conditioning equipment and storage medium Download PDFInfo
- Publication number
- CN117663422A CN117663422A CN202211091808.6A CN202211091808A CN117663422A CN 117663422 A CN117663422 A CN 117663422A CN 202211091808 A CN202211091808 A CN 202211091808A CN 117663422 A CN117663422 A CN 117663422A
- Authority
- CN
- China
- Prior art keywords
- air conditioning
- coil temperature
- determining
- conditioning equipment
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 153
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 238000010257 thawing Methods 0.000 claims description 24
- 239000003507 refrigerant Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 238000004891 communication Methods 0.000 description 7
- 238000004590 computer program Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000002068 genetic effect Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Abstract
The embodiment of the application discloses control method of air conditioning equipment, the air conditioning equipment includes m indoor heat exchangers and P first ooff valves, m indoor heat exchangers are parallelly connected to be set up, P first ooff valves respectively with P indoor heat exchangers establish ties, m is greater than or equal to 2 integer, P is greater than or equal to 1, and P is less than m integer, the method includes: acquiring the current coil temperature of an outdoor heat exchanger of the air conditioning equipment at the current moment under the condition that the air conditioning equipment is in a heating mode; determining a lowest coil temperature corresponding to the history of the outdoor heat exchanger; determining a target adjustment operation for the air conditioning apparatus based on the current coil temperature and the minimum coil temperature; wherein the target adjustment operation is for varying a coil temperature of the outdoor heat exchanger; and executing the target adjustment operation. The embodiment of the application also discloses a control device of the air conditioning equipment, the air conditioning equipment and a storage medium.
Description
Technical Field
The present disclosure relates to the field of air conditioning technologies, and in particular, to a control method and apparatus for an air conditioning device, and a storage medium.
Background
With the rapid development of scientific production technology, the functions of air conditioning equipment are more and more perfect, and the application is more and more common. In order to ensure the use experience effect of users, manufacturers design multi-temperature output air conditioning equipment, namely one indoor heat exchanger originally in an indoor unit of the air conditioning equipment is designed into a plurality of indoor heat exchangers, part of the indoor heat exchangers are connected with a switch valve, and air flows with various temperatures are simultaneously output by controlling the switch state of the switch valve. When the air conditioning equipment is used in a heating mode, particularly when the air conditioning equipment is applied to the heating mode, the outdoor heat exchanger in the outdoor unit of the air conditioning equipment can generate frosting phenomenon, and as the duration of the heating process of the air conditioning equipment is increased, the frosting layer on the outdoor heat exchanger is continuously accumulated, so that the frosting of the outdoor heat exchanger is increased. At present, when the air conditioning equipment detects that the outdoor heat exchanger frosts to a certain extent, a defrosting mode is started so as to eliminate the frost layer on the outdoor heat exchanger and ensure the service efficiency of the outdoor heat exchanger.
However, at present, no method for suppressing frost of an outdoor heat exchanger of air conditioning equipment exists, so that defrosting can be directly performed only by adopting a shutdown mode when the frost of the outdoor heat exchanger reaches a certain degree.
Content of the application
In order to solve the technical problems, the embodiment of the application expects to provide a control method, a device, an air conditioner and a storage medium of the air conditioner, solves the problem that no effective defrosting method is available for an outdoor heat exchanger of the air conditioner at present, and directly adopts a shutdown mode to defrost the air conditioner when frosting reaches a certain degree.
The technical scheme of the application is realized as follows:
in a first aspect, a control method of an air conditioning apparatus, the air conditioning apparatus including m indoor heat exchangers and P first switching valves, the m indoor heat exchangers being arranged in parallel, the P first switching valves being respectively connected in series with the P indoor heat exchangers, m being an integer greater than or equal to 2, P being an integer greater than or equal to 1, and P being an integer less than m, the method comprising:
acquiring the current coil temperature of an outdoor heat exchanger of the air conditioning equipment at the current moment under the condition that the air conditioning equipment is in a heating mode;
determining a lowest coil temperature corresponding to the history of the outdoor heat exchanger;
determining a target adjustment operation for the air conditioning apparatus based on the current coil temperature and the minimum coil temperature; wherein the target adjustment operation is for varying a coil temperature of the outdoor heat exchanger;
and executing the target adjustment operation.
In a second aspect, a control device for an air conditioning apparatus, the device comprising: the device comprises an acquisition unit, a first determination unit, a second determination unit and an execution unit; wherein:
the acquisition unit is used for acquiring the current coil temperature of the outdoor heat exchanger of the air conditioning equipment at the current moment under the condition that the air conditioning equipment is in a heating mode;
the first determining unit is used for determining the lowest coil temperature corresponding to the history of the outdoor heat exchanger;
the second determining unit is used for determining a target adjustment operation for the air conditioning equipment based on the current coil temperature and the lowest coil temperature; wherein the target adjustment operation is for varying a coil temperature of the outdoor heat exchanger;
the execution unit is used for executing the target adjustment operation.
In a third aspect, an air conditioning apparatus, the apparatus comprising: an indoor unit including m indoor heat exchangers, an outdoor unit including an outdoor heat exchanger, and a control device of an air conditioner according to any one of the above.
In a fourth aspect, a storage medium has stored thereon a control program of an air conditioner, which when executed by a processor, implements the steps of the control method of an air conditioner as set forth in any one of the preceding claims.
In the embodiment of the application, after the current coil temperature of the outdoor heat exchanger of the air conditioning equipment at the current moment is obtained, the lowest coil temperature corresponding to the history of the outdoor heat exchanger is determined, and the target adjustment operation for the air conditioning equipment is determined based on the current coil temperature and the lowest coil temperature so as to execute the target adjustment parameters. In this way, under the condition that the air conditioning equipment is in a heating mode, the current coil temperature of the indoor heat exchanger and the lowest coil temperature corresponding to the history are analyzed, the target adjustment operation capable of changing the coil temperature of the outdoor heat exchanger is determined, the target adjustment operation is executed, the problem that no effective defrosting method for the outdoor heat exchanger of the air conditioning equipment exists at present is solved, and the defrosting of the air conditioning equipment is directly carried out by adopting a shutdown mode when frosting reaches a certain degree is solved.
Drawings
Fig. 1 is a schematic flow chart of a control method of an air conditioning apparatus according to an embodiment of the present application;
fig. 2 is a flow chart diagram II of a control method of an air conditioning apparatus according to an embodiment of the present application;
fig. 3 is an application schematic diagram of an air conditioning apparatus according to an embodiment of the present application;
fig. 4 is a schematic implementation flow chart of an application embodiment of a control method of an air conditioning apparatus according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a control device of an air conditioning apparatus according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an air conditioning apparatus according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
An embodiment of the present application provides a control method of an air conditioning apparatus, referring to fig. 1, where the method is applied to the air conditioning apparatus, the air conditioning apparatus includes m indoor heat exchangers and P first switching valves, the m indoor heat exchangers are arranged in parallel, the P first switching valves are respectively connected in series with the P indoor heat exchangers, m is an integer greater than or equal to 2, P is an integer greater than or equal to 1, and P is an integer less than m, and the method includes the following steps:
and 101, under the condition that the air conditioning equipment is in a heating mode, acquiring the current coil temperature of the outdoor heat exchanger of the air conditioning equipment at the current moment.
In this embodiment of the application, air conditioning equipment is multi-temperature output air conditioning equipment, and air conditioning equipment includes m indoor heat exchangers promptly, when air conditioning equipment is in the heating mode at present, through the on-off state of the ooff valve of controlling different indoor heat exchanger connections, can realize that air conditioning equipment exports the wind of multiple temperature simultaneously, can effectively guarantee user's use experience effect. Among the m indoor heat exchangers included in the air conditioning equipment, p indoor heat exchangers are respectively connected with the corresponding first switch valves, so that the flow of the refrigerant passing through the corresponding indoor heat exchangers can be controlled through the first switch valves, and the air conditioning equipment can output wind with various temperatures at the same time. And p is smaller than m to ensure that the refrigerant can still pass through the indoor heat exchanger in the indoor unit of the air conditioning equipment when the p first switch valves are in the closed state, so that the indoor unit can still normally regulate the indoor environment temperature, and the use experience effect of a user is ensured.
The current coil temperature of the outdoor heat exchanger of the air conditioning equipment at the current moment can be detected by a temperature detection device arranged on a coil of the outdoor heat exchanger, and the communication mode between the temperature detection device and the air conditioning equipment can be a wired communication mode or a wireless communication mode, wherein the wireless communication mode at least comprises Bluetooth communication, infrared communication, ultraviolet (ZigBee) communication and the like. The temperature detecting means provided on the outdoor heat exchanger may be a temperature sensor.
Step 102, determining the lowest coil temperature corresponding to the history of the outdoor heat exchanger.
In the embodiment of the application, the lowest coil temperature corresponding to the history of the outdoor heat exchanger may be the minimum coil temperature reached by the detected outdoor heat exchanger in the heating mode in the history use process of the air conditioning equipment; the temperature of the coil of the outdoor heat exchanger detected before the current moment can be the minimum coil temperature reached in the use process of the air conditioning equipment in the heating mode.
Step 103, determining a target adjustment operation for the air conditioning apparatus based on the current coil temperature and the minimum coil temperature.
Wherein the target tuning operation is for varying the coil temperature of the outdoor heat exchanger.
In the embodiment of the application, the air conditioning equipment comprehensively analyzes the current coil temperature and the lowest coil temperature, and determines target adjustment operation for the air conditioning equipment so as to change the coil temperature of the outdoor heat exchanger.
Step 104, executing a target adjustment operation.
In the embodiment of the application, the determined target adjustment operation is performed to change the temperature of the coil of the outdoor heat exchanger, and the corresponding target adjustment operation may be an operation for slowing down the frosting speed of the outdoor heat exchanger or an operation for eliminating the frost on the coil of the outdoor heat exchanger.
In the embodiment of the application, after the current coil temperature of the outdoor heat exchanger of the air conditioning equipment at the current moment is obtained, the lowest coil temperature corresponding to the history of the outdoor heat exchanger is determined, and the target adjustment operation for the air conditioning equipment is determined based on the current coil temperature and the lowest coil temperature so as to execute the target adjustment parameters. In this way, under the condition that the air conditioning equipment is in a heating mode, the current coil temperature of the indoor heat exchanger and the lowest coil temperature corresponding to the history are analyzed, the target adjustment operation capable of changing the coil temperature of the outdoor heat exchanger is determined, the target adjustment operation is executed, the problem that no effective defrosting method for the outdoor heat exchanger of the air conditioning equipment exists at present is solved, and the defrosting of the air conditioning equipment is directly carried out by adopting a shutdown mode when frosting reaches a certain degree is solved.
Based on the foregoing embodiments, an embodiment of the present application provides a control method of an air conditioning apparatus, where the method is applied to the air conditioning apparatus, the air conditioning apparatus includes m indoor heat exchangers and P first switching valves, the m indoor heat exchangers are arranged in parallel, the P first switching valves are respectively connected in series with the P indoor heat exchangers, m is an integer greater than or equal to 2, P is an integer greater than or equal to 1, and P is an integer less than m, referring to fig. 2, the method includes the following steps:
step 201, acquiring the current coil temperature of the outdoor heat exchanger of the air conditioner at the current moment when the air conditioner is in a heating mode.
In the embodiment of the application, assuming that the value of m is 5 and the value of p is 4, namely the air conditioning equipment is provided with 5 indoor heat exchangers A1, A2, A3, A4 and A5, wherein the indoor heat exchangers A1, A2, A3 and A4 are respectively connected with 1 switching valve for controlling the flow of the refrigerant, and the A5 is not connected with the switching valve for controlling the flow of the refrigerant, so that when all the switching valves are in a closed state, the indoor unit of the air conditioning equipment still has the refrigerant to pass through, and the conditioning of the air conditioning equipment to the indoor environment is ensured. When the air conditioning equipment is in a heating multi-temperature mode currently, the state of the indoor heat exchanger in the indoor unit is that 3 switching valves respectively connected with the indoor heat exchangers A1, A2 and A3 are in a closed state currently, 2 indoor heat exchangers A4 and A5 correspondingly pass through refrigerants, at the moment, the air conditioning equipment is in a heating multi-temperature output mode, and in the process, a temperature detection device arranged on an outdoor heat exchanger coil in the outdoor unit of the air conditioning equipment continuously collects the temperature of the outdoor heat exchanger coil according to a preset sampling period to obtain the current coil temperature at the current moment. The air conditioning equipment records and stores the temperature acquired by the temperature detection device.
When the indoor heat exchangers in the n indoor heat exchangers through which the refrigerant flows are connected with the switch valve, the opening degree of the switch valve is more than 0 and less than or equal to the maximum allowable opening degree, so that the refrigerants with different flow rates respectively pass through different indoor heat exchangers, and the indoor units can simultaneously output airflows with different temperatures.
Step 202, after the air conditioning equipment is switched to a heating mode for a first preset time period, obtaining the coil temperature of the inner and outer heat exchangers in a preset time period, and obtaining n reference temperatures.
Wherein n is an integer greater than or equal to 1.
In this embodiment of the present application, the first preset duration may be an empirical value obtained according to a large number of experiments, and in some application scenarios, may also be an empirical value set by a user or an air conditioner developer according to actual experience, for example, the first preset duration is 10 minutes. And acquiring the coil temperature of the outdoor heat exchanger acquired in a preset time period after the air conditioning equipment is switched to the heating mode for a first preset time period, and obtaining n reference temperatures. Illustratively, the coil temperature of the outdoor heat exchanger acquired within 15 minutes after the air conditioning apparatus was switched to the heating mode for 10 minutes is acquired, and n reference temperatures are obtained.
And 203, determining the minimum temperature from the n reference temperatures to obtain the minimum coil temperature.
In the embodiment of the application, the n reference temperatures are compared in size, the minimum temperature with the minimum temperature value is determined and obtained, and the minimum temperature is determined to be the lowest coil temperature.
Step 204, determining a target adjustment operation for the air conditioning apparatus based on the current coil temperature and the minimum coil temperature.
Wherein the target tuning operation is for varying the coil temperature of the outdoor heat exchanger.
In an embodiment of the present application, a difference between a current coil temperature and a lowest coil temperature is determined, and a target adjustment operation for the air conditioning apparatus is determined based on the difference.
Step 205, performing a target adjustment operation.
Based on the foregoing embodiments, in other embodiments of the present application, step 204 may be implemented by steps 204 a-204 b:
step 204a, determining a target difference between the lowest coil temperature and the current coil temperature.
In the embodiment of the application, the formula of target difference=lowest coil temperature-current coil temperature is used to calculate the target difference between the lowest coil temperature and the current arbiter temperature.
Step 204b, determining a target adjustment operation based on the target difference.
In the embodiment of the application, the target difference value is analyzed, and the target adjustment operation corresponding to the target difference value is determined.
Based on the foregoing embodiments, in other embodiments of the present application, step 204b may be implemented by steps a11 to a 13:
and a step a11 of determining the switching states of the p first switching valves if the target difference value is larger than a preset temperature threshold value.
In the embodiment of the application, the preset temperature threshold is an empirical temperature threshold value obtained according to a large number of experiments, and in some application scenarios, the preset temperature threshold value can be obtained by setting according to actual application scenarios or actual requirements. And determining the switching states of all the first switching valves, namely p first switching valves, included in the indoor unit of the air conditioning equipment under the condition that the target difference value is larger than the preset temperature threshold value.
And a12, if the switching states of q second switching valves in the p first switching valves are in the on state, determining a preset number of switching valves from the q second switching valves to obtain the target switching valve.
Wherein q is greater than or equal to 1 and less than or equal to p.
In this embodiment of the present application, the preset number may be an empirical value obtained by a large number of experiments, or may be an empirical value obtained by setting according to actual requirements, for example, the value may be 1. And determining the switching valve with the switching state of on from the p first switching valves to obtain q second switching valves, and selecting a preset number of switching valves from the q second switching valves as target switching valves. When a preset number of switch valves are selected from the q second switch valves to serve as target switch valves, the selected rule may be: the q second switching valves are selected according to the naming sequence or the installation sequence in the indoor unit of the air conditioner.
Step a13, determining that the target adjustment operation is to switch the on-off state of the target switching valve to the off state.
In the embodiment of the application, the target adjustment operation is determined to be that the on-off state of the target on-off valve is switched to the off state, so that the target on-off valve is closed, the passage of the refrigerant in the indoor heat exchanger is reduced, the temperature of the coil pipe of the indoor heat exchanger is increased to increase the condensation temperature, the evaporation temperature is further increased to increase the temperature of the coil pipe of the outdoor heat exchanger, the inhibition of the frosting process of the outdoor heat exchanger is realized, and the frosting speed of the outdoor heat exchanger is effectively delayed.
Based on the foregoing embodiments, in other embodiments of the present application, after the air conditioning apparatus performs steps 201 to 203, step 204a, steps a11 to a13, and step 205, the air conditioning apparatus is further configured to perform step 206:
and 206, after the target adjustment parameter is executed for a second preset time period, repeating the step of acquiring the current coil temperature of the outdoor heat exchanger of the air conditioning equipment at the current moment.
In this embodiment of the present application, the second preset duration is an empirical duration that enables the air conditioning apparatus to stably operate after the target switch valve is closed, and typically, the second preset duration may take 3 minutes according to a duration empirical value obtained by a large number of experiments. After the air conditioning equipment switches the on-off state of the target switch valve to the off state for a second preset time period, the step 201 is repeatedly executed, and the circulation is performed in such a way, so that defrosting inhibition operation is performed on the outdoor coil temperature of the air conditioning equipment, normal operation of the air conditioning equipment is ensured, and the use experience effect of a user is improved.
Based on the foregoing embodiment, in other embodiments of the present application, after the air conditioning apparatus performs step a11, step a14 may be optionally performed:
and a14, if the switching states of the P first switching valves are all in the closed state, determining that the target adjustment operation is to switch the switching states of the P first switching valves to the on state, and then switching the working mode of the air conditioning equipment to the defrosting mode.
In this embodiment of the present application, when all the on-off states of the p first on-off valves in the indoor unit of the air conditioner are off states on the premise that the target difference value is greater than the preset temperature threshold value, the defrosting operation needs to be performed on the outdoor heat exchanger of the air conditioner, at this time, the on-off states of the p first on-off valves in the off states need to be switched to the on state, and then the working mode of the air conditioner is switched to the defrosting mode, where the defrosting mode of the air conditioner is implemented by the defrosting function of the air conditioner itself, for example, defrosting may be implemented by a shutdown mode, or a mode in which defrosting is not stopped, that is, a part of high-temperature and high-pressure refrigerant discharged from the compressor flows into the outdoor heat exchanger through the bypass electromagnetic valve in the heating state of the air conditioner, so as to complete defrosting and the like.
Based on the foregoing embodiments, the embodiments of the present application provide an air conditioning apparatus, where a flow direction of a refrigerant in a heating mode of the air conditioning apparatus may be shown with reference to fig. 3, where an indoor unit of the air conditioning apparatus includes n+1 indoor heat exchangers, n indoor heat exchangers are respectively connected with electromagnetic valves, the electromagnetic valves correspond to the switch valves, and an outdoor unit includes at least four-way valves, a throttling device, an outdoor heat exchanger, a compressor, a stop valve, and other components, a pipe temperature sensor (not shown in fig. 3) is disposed on a coil of the outdoor heat exchanger, and is used to detect a coil temperature of the outdoor heat exchanger, and an arrow direction in fig. 3 is a flow direction of the refrigerant in the heating mode.
When the air conditioning apparatus shown in fig. 3 is currently in a heating multi-temperature mode, for example, a heating dual-temperature mode, the implementation process of a control method of an air conditioning apparatus may refer to fig. 4, which includes the following steps:
step 301, the air conditioning equipment enters a heating dual-temperature wind mode.
And 302, closing the paths of the indoor heat exchangers according to the requirements by the air conditioning equipment.
When the air conditioning equipment enters a heating multi-temperature air mode, the air conditioning equipment can control corresponding switching valves connected with the indoor heat exchangers in a certain number of paths to be in a closed state. The number of paths is determined by the set temperature requirement corresponding to the heating multi-temperature wind mode set by the user.
Step 303, the compressor of the air conditioning equipment operates according to a certain rule.
The certain rule may be, for example, a genetic algorithm (Genetic Algorithm, GA) to calculate and analyze the operation mode, the set temperature and the indoor temperature of the air conditioning equipment, so as to obtain the operation frequency of the compressor of the air conditioning equipment when in operation.
And 304, the air conditioning equipment counts the minimum coil temperature Tmin of the heat exchanger outside the inner chamber within the time range from t1 to t2 after the air conditioning equipment is switched to the heating mode.
The time range from t1 to t2 after the air conditioning equipment is switched to the heating mode refers to the time range from t1 to t2 after the air conditioning equipment is started to the heating mode or after defrosting operation is finished and restarted to the heating mode. By way of example, it may be a minimum coil temperature between 10 minutes and 20 minutes after switching the air conditioning apparatus to heating mode.
Step 305, the air conditioning equipment determines the coil temperature T of the outdoor heat exchanger at the current moment.
Wherein, the current time is after the time t 2.
Step 306, the air conditioning equipment determines whether Tmin-T is greater than Δt, if Tmin-T is greater than Δt, step 307 is executed, and if Tmin-T is less than or equal to Δt, step 305 is executed.
Wherein Δt corresponds to the preset temperature threshold.
Step 307, the air conditioning equipment judges whether all electromagnetic valves connected with the indoor heat exchanger in the indoor unit of the air conditioning equipment are in a closed state, if yes, step 308 is executed, otherwise, step 309 is executed.
Step 308, the air conditioner controls all electromagnetic valves connected with the indoor heat exchanger to be in a conducting state, and controls the air conditioner to execute defrosting operation.
Step 309, the air conditioning equipment determines at least one electromagnetic valve with a switch state being in a conducting state from electromagnetic valves connected with the indoor heat exchanger, switches one electromagnetic valve i of the at least one electromagnetic valve to a closing state, and after switching the electromagnetic valve i to the closing state for X minutes, executes step 305.
It should be noted that, in this embodiment, the descriptions of the same steps and the same content as those in other embodiments may refer to the descriptions in other embodiments, and are not repeated here.
In the embodiment of the application, after the current coil temperature of the outdoor heat exchanger of the air conditioning equipment at the current moment is obtained, the lowest coil temperature corresponding to the history of the outdoor heat exchanger is determined, and the target adjustment operation for the air conditioning equipment is determined based on the current coil temperature and the lowest coil temperature so as to execute the target adjustment parameters. In this way, under the condition that the air conditioning equipment is in a heating mode, the current coil temperature of the indoor heat exchanger and the lowest coil temperature corresponding to the history are analyzed, the target adjustment operation capable of changing the coil temperature of the outdoor heat exchanger is determined, the target adjustment operation is executed, the problem that no effective defrosting method for the outdoor heat exchanger of the air conditioning equipment exists at present is solved, and the defrosting of the air conditioning equipment is directly carried out by adopting a shutdown mode when frosting reaches a certain degree is solved.
Based on the foregoing embodiments, an embodiment of the present application provides a control device for an air conditioner, where the air conditioner includes m indoor heat exchangers and P first switching valves, the m indoor heat exchangers are arranged in parallel, the P first switching valves are respectively connected in series with the P indoor heat exchangers, m is an integer greater than or equal to 2, P is an integer greater than or equal to 1, and P is an integer less than m, referring to fig. 5, the control device 4 for an air conditioner may include: an acquisition unit 41, a first determination unit 42, a second determination unit 43, and an execution unit 44; wherein:
an obtaining unit 41, configured to obtain, when the air conditioning apparatus is in a heating mode, a current coil temperature of an outdoor heat exchanger of the air conditioning apparatus at a current time;
a first determining unit 42 for determining a lowest coil temperature corresponding to the history of the outdoor heat exchanger;
a second determining unit 43 for determining a target adjustment operation for the air conditioning apparatus based on the current coil temperature and the lowest coil temperature; wherein the target adjustment operation is for changing the coil temperature of the outdoor heat exchanger;
and an execution unit 44 for executing the target adjustment operation.
In other embodiments of the present application, the first determining unit includes: the device comprises an acquisition module and a first determination module; wherein:
the acquisition module is used for acquiring the coil temperature of the inner chamber outer heat exchanger in a preset time period after the air conditioning equipment is switched to the heating mode for a first preset time period, so as to obtain n reference temperatures; wherein n is an integer greater than or equal to 1;
and the first determining module is used for determining the minimum temperature from the n reference temperatures to obtain the minimum coil temperature.
In other embodiments of the present application, the second determining unit includes: a second determination module and a third determination module; wherein:
a second determining module for determining a target difference between the lowest coil temperature and the current coil temperature;
and a third determining module for determining a target adjustment operation based on the target difference.
In other embodiments of the present application, the third determining module is specifically configured to implement the following steps:
if the target difference value is greater than a preset temperature threshold value, determining the switching states of p first switching valves;
if the switching states of q second switching valves in the p first switching valves are in a conducting state, determining a preset number of switching valves from the q second switching valves to obtain a target switching valve;
the target adjustment operation is determined to switch the on-off state of the target switching valve to the off state.
In other embodiments of the present application, after the execution unit executes the step to execute the target adjustment operation, the execution unit is further configured to execute the following steps:
and after the target adjustment parameter is executed for a second preset time period, the step of 'obtaining the current coil temperature of the outdoor heat exchanger of the air conditioner at the current moment' is repeatedly executed.
In other embodiments of the present application, the third determining module is further configured to perform the following steps:
if the switching states of the P first switching valves are all the closing states, determining that the target adjustment operation is to switch the switching states of the P first switching valves to the conducting state, and then switching the working mode of the air conditioning equipment to the defrosting mode.
It should be noted that, in the specific implementation process of information interaction between the units and the modules in this embodiment, reference may be made to the implementation process in the control method of the air conditioning apparatus provided in the embodiment corresponding to fig. 1 to 2, which is not described herein again.
In the embodiment of the application, after the current coil temperature of the outdoor heat exchanger of the air conditioning equipment at the current moment is obtained, the lowest coil temperature corresponding to the history of the outdoor heat exchanger is determined, and the target adjustment operation for the air conditioning equipment is determined based on the current coil temperature and the lowest coil temperature so as to execute the target adjustment parameters. In this way, under the condition that the air conditioning equipment is in a heating mode, the current coil temperature of the indoor heat exchanger and the lowest coil temperature corresponding to the history are analyzed, the target adjustment operation capable of changing the coil temperature of the outdoor heat exchanger is determined, the target adjustment operation is executed, the problem that no effective defrosting method for the outdoor heat exchanger of the air conditioning equipment exists at present is solved, and the defrosting of the air conditioning equipment is directly carried out by adopting a shutdown mode when frosting reaches a certain degree is solved.
Based on the foregoing embodiments, embodiments of the present application provide an air conditioning apparatus, referring to fig. 6, the air conditioning apparatus 5 may include: an indoor unit 51, an outdoor unit 52, and a control device 53; wherein:
the indoor unit 51 includes m indoor heat exchangers;
the outdoor unit 52 includes an outdoor heat exchanger;
the specific implementation process of the control device of the air conditioning apparatus may refer to the implementation process of the method shown in fig. 1 to 2, which is not described in detail herein. The control device 53 is the same as the control device 4 of the air conditioner.
Based on the foregoing embodiments, the embodiments of the present application provide a computer readable storage medium, simply referred to as a storage medium, where one or more programs are stored, and the one or more programs may be executed by one or more processors, so as to implement a control method implementation procedure of an air conditioning apparatus provided in the corresponding embodiments of fig. 1 to 2, which is not described herein again.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application.
Claims (10)
1. A control method of an air conditioning apparatus, wherein the air conditioning apparatus includes m indoor heat exchangers and P first switching valves, the m indoor heat exchangers are arranged in parallel, the P first switching valves are respectively connected in series with the P indoor heat exchangers, m is an integer greater than or equal to 2, P is an integer greater than or equal to 1, and P is an integer less than m, the method comprising:
acquiring the current coil temperature of an outdoor heat exchanger of the air conditioning equipment at the current moment under the condition that the air conditioning equipment is in a heating mode;
determining a lowest coil temperature corresponding to the history of the outdoor heat exchanger;
determining a target adjustment operation for the air conditioning apparatus based on the current coil temperature and the minimum coil temperature; wherein the target adjustment operation is for varying a coil temperature of the outdoor heat exchanger;
and executing the target adjustment operation.
2. The method of claim 1, wherein the determining the lowest coil temperature for the outdoor heat exchanger history comprises:
after the air conditioning equipment is switched to a heating mode for a first preset time period, acquiring the coil temperature of an inner chamber outer heat exchanger in a preset time period, and acquiring n reference temperatures; wherein n is an integer greater than or equal to 1;
determining a minimum temperature from the n reference temperatures, and obtaining the minimum coil temperature.
3. The method of claim 1 or 2, wherein the determining a target adjustment operation for the air conditioning apparatus based on the current coil temperature and the minimum coil temperature comprises:
determining a target difference between the lowest coil temperature and the current coil temperature;
and determining the target adjustment operation based on the target difference value.
4. A method according to claim 3, wherein said determining said target adjustment operation based on said target difference value comprises:
if the target difference value is larger than a preset temperature threshold value, determining the switching states of p first switching valves;
if the switching states of q second switching valves in the p first switching valves are in a conducting state, determining a preset number of switching valves from the q second switching valves to obtain a target switching valve; wherein q is greater than or equal to 1 and less than or equal to p;
and determining that the target adjustment operation is to switch the switching state of the target switching valve to the closing state.
5. The method of claim 4, wherein after the performing the target adjustment operation, the method further comprises:
and after the target adjustment parameter is executed for a second preset time period, the step of 'obtaining the current coil temperature of the outdoor heat exchanger of the air conditioning equipment at the current moment' is repeatedly executed.
6. The method according to claim 4, wherein the method further comprises:
and if the switching states of the P first switching valves are all the closing states, determining that the target adjustment operation is to switch the switching states of the P first switching valves to the conducting state, and then switching the working mode of the air conditioning equipment to the defrosting mode.
7. A control device of an air conditioning apparatus, wherein the air conditioning apparatus includes m indoor heat exchangers and P first switching valves, the m indoor heat exchangers are arranged in parallel, the P first switching valves are respectively connected in series with the P indoor heat exchangers, m is an integer greater than or equal to 2, P is an integer greater than or equal to 1, and P is an integer less than m, the device comprising: the device comprises an acquisition unit, a first determination unit, a second determination unit and an execution unit; wherein:
the acquisition unit is used for acquiring the current coil temperature of the outdoor heat exchanger of the air conditioning equipment at the current moment under the condition that the air conditioning equipment is in a heating mode;
the first determining unit is used for determining the lowest coil temperature corresponding to the history of the outdoor heat exchanger;
the second determining unit is used for determining a target adjustment operation for the air conditioning equipment based on the current coil temperature and the lowest coil temperature; wherein the target adjustment operation is for varying a coil temperature of the outdoor heat exchanger;
the execution unit is used for executing the target adjustment operation.
8. The apparatus of claim 7, wherein the first determining unit comprises: the device comprises an acquisition module and a first determination module; wherein:
the acquisition module is used for acquiring the coil temperature of the inner chamber outer heat exchanger in a preset time period after the air conditioning equipment is switched to a heating mode for a first preset time period, so as to obtain n reference temperatures; wherein n is an integer greater than or equal to 1;
and the first determining module is used for determining the minimum temperature from the n reference temperatures to obtain the minimum coil temperature.
9. An air conditioning apparatus, the apparatus comprising: an indoor unit comprising m indoor heat exchangers, an outdoor unit comprising an outdoor heat exchanger, and the control apparatus according to any one of claims 7 to 8.
10. A storage medium having stored thereon a control program of an air conditioning apparatus, which when executed by a processor, implements the steps of the control method of an air conditioning apparatus according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211091808.6A CN117663422A (en) | 2022-09-07 | 2022-09-07 | Control method and device of air conditioning equipment, air conditioning equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211091808.6A CN117663422A (en) | 2022-09-07 | 2022-09-07 | Control method and device of air conditioning equipment, air conditioning equipment and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117663422A true CN117663422A (en) | 2024-03-08 |
Family
ID=90077691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211091808.6A Pending CN117663422A (en) | 2022-09-07 | 2022-09-07 | Control method and device of air conditioning equipment, air conditioning equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117663422A (en) |
-
2022
- 2022-09-07 CN CN202211091808.6A patent/CN117663422A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2868282C (en) | Hvac control system and method | |
| CN109210696B (en) | Control method for anti-freezing protection of air conditioner | |
| CN109579213B (en) | Air conditioner temperature control method, storage device and air conditioner | |
| CN110186151B (en) | Operation control method, operation control device, air conditioner, and storage medium | |
| CN110779183B (en) | Operation control method and device, air conditioner and storage medium | |
| CN107560072B (en) | Multi-split air conditioner, control method thereof and storage medium | |
| WO2018042611A1 (en) | Refrigeration air conditioning system | |
| CN111426023B (en) | Operation control method, operation control device, multi-split air conditioning system and storage medium | |
| CN110779160B (en) | Operation control method and device, air conditioner and storage medium | |
| CN102997525A (en) | Air conditioner and defrosting method and device thereof | |
| CN108317665B (en) | Defrosting control method and control device for air conditioner | |
| CN114087740B (en) | Fresh air equipment, control method thereof and computer-readable storage medium | |
| CN108224846B (en) | Control method and system of double-valve heat pump system | |
| CN110542192B (en) | Operation control method, operation control device, air conditioner, and storage medium | |
| CN117663422A (en) | Control method and device of air conditioning equipment, air conditioning equipment and storage medium | |
| CN114413414B (en) | Defrosting exit judging method and air conditioning system | |
| CN110542191B (en) | Operation control method, operation control device, air conditioner, and storage medium | |
| CN108626853B (en) | Refrigeration apparatus, operation control method, and computer-readable storage medium | |
| CN117663387A (en) | Control method and device of air conditioning equipment, air conditioning equipment and storage medium | |
| CN111059700A (en) | Air conditioner defrosting control method and device and air conditioner | |
| CN114046594B (en) | Temperature control method, device and system | |
| CN117704603A (en) | Control method and device of air conditioning equipment, air conditioning equipment and storage medium | |
| WO2023173587A1 (en) | Air conditioner control method, air conditioner, and computer-readable storage medium | |
| CN115614922A (en) | Air conditioner defrosting control method, air conditioner and medium | |
| Jeong | Design of Membership Ranges for Robust Control of Variable Speed Drive Refrigeration Cycle Based on Fuzzy Logic |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |