CN114383253A - Air conditioner, control method and device thereof, and computer readable storage medium - Google Patents
Air conditioner, control method and device thereof, and computer readable storage medium Download PDFInfo
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- CN114383253A CN114383253A CN202011120915.8A CN202011120915A CN114383253A CN 114383253 A CN114383253 A CN 114383253A CN 202011120915 A CN202011120915 A CN 202011120915A CN 114383253 A CN114383253 A CN 114383253A
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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
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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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
- F24F11/88—Electrical aspects, e.g. circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner, a control method and a control device thereof, and a computer readable storage medium, wherein the control method of the air conditioner comprises the following steps: after the air conditioner recovers through abnormal power failure, if a door opening and closing reset control signal is received, whether the electric auxiliary heat of the air conditioner is in a working state before the power failure is determined; when the electric auxiliary heat is in a working state before the air conditioner is powered down, acquiring the power down time from the power down of the air conditioner to the time when a door opening and closing reset control signal is received; and when the power-off duration is less than the first preset duration, performing delayed door closing control on the opening and closing door of the air conditioner. The invention improves the stability and safety of the air conditioner.
Description
Technical Field
The present invention relates to the field of air conditioners, and in particular, to an air conditioner, a method and an apparatus for controlling the same, and a computer readable storage medium.
Background
With the development of the air conditioning industry, people have higher and higher performance requirements on the aspects of energy conservation and comfort of the air conditioner, the heating capacity of the air conditioner is sometimes insufficient, and in order to adapt to high-power heating operation or improve the heating performance of the air conditioner, electric auxiliary heat is additionally arranged in some indoor air conditioning devices, and the electric auxiliary heat and a heat exchanger are used for heating indoor air together.
In the process of air conditioner work, the unusual power failure can appear, if close the switch door of air conditioner immediately, the electric heat of assistance surface temperature still is very high this moment, leads to the temperature in the air conditioner to improve rapidly easily, probably causes the deformation of inside working of plastics, takes off, perhaps the unusual circumstances such as electric heat of assistance protector action.
Disclosure of Invention
The invention mainly aims to provide an air conditioner, a control method and a control device of the air conditioner and a computer readable storage medium, and aims to improve the stability and the safety of the air conditioner.
In order to achieve the above object, the present invention provides a method for controlling an air conditioner, comprising the steps of:
after the air conditioner recovers through abnormal power failure, if a door opening and closing reset control signal is received, whether the electric auxiliary heat of the air conditioner is in a working state before the power failure is determined;
when the electric auxiliary heat is in a working state before the air conditioner is powered down, acquiring the power-down time from the power-down of the air conditioner to the receiving of the door opening and closing reset control signal; and the number of the first and second groups,
and when the power failure duration is less than a first preset duration, performing delayed door closing control on the opening and closing of the door of the air conditioner.
Optionally, the control method of the air conditioner further includes the steps of:
and when the air conditioner is determined not to be in the working state before the power failure, directly closing the switch door of the air conditioner.
Optionally, the control method of the air conditioner further includes the steps of:
and when the power failure duration is greater than or equal to the first preset duration, directly closing a switch door of the air conditioner.
Optionally, after the step of obtaining a power-down time period from power-down to receiving of the door opening and closing reset control signal of the air conditioner when it is determined that the air conditioner is in the operating state of the electric auxiliary heat before the power-down, the control method of the air conditioner further includes:
and when the power failure duration is less than a first preset duration, the fan of the air conditioner is also controlled to dissipate the electric auxiliary heat.
Optionally, the air conditioner includes an energy storage element, and the step of obtaining a power-down duration from power-down to receiving the switch door reset control signal of the air conditioner when it is determined that the electric auxiliary heater is in a working state before power-down specifically includes:
when a switch gate reset control signal is received, detecting the voltage value of the energy storage element after discharging;
and calculating the power-down time from power-down to receiving of the switch door reset control signal according to the voltage value of the energy storage element after discharging.
The invention also provides a control device of an air conditioner, which comprises a processor, a memory and a control program of the air conditioner, wherein the control program of the air conditioner is stored on the memory and can run on the processor, and the steps of the control method of the air conditioner are realized when the control program of the air conditioner is executed by the processor.
Optionally, the control device of the air conditioner further comprises an integrated chip, a charge and discharge circuit, and an energy storage element; the output end of the integrated chip is connected with the charging and discharging circuit; wherein the content of the first and second substances,
the integrated chip is used for controlling the charging and discharging circuit to charge the energy storage element when the air conditioner is powered on and works, and controlling the charging and discharging circuit to discharge the energy storage element when the air conditioner is powered off.
Optionally, the charging and discharging circuit includes a unidirectional conductive element and a discharging resistor, an input end of the unidirectional conductive element is connected to an output end of the integrated chip, an output end of the unidirectional conductive element is connected to the energy storage element, and the discharging resistor is connected to the unidirectional conductive element in parallel.
Optionally, the control device of the air conditioner further includes a voltage detection circuit, a detection end of the voltage detection circuit is connected to the energy storage element, and an output end of the voltage detection circuit is connected to a voltage feedback end of the integrated chip; wherein the content of the first and second substances,
the voltage detection circuit is used for detecting the voltage value of the energy storage element after discharging; and the number of the first and second groups,
and the integrated chip is also used for calculating the time from power failure to the time of receiving the door opening and closing reset control signal according to the voltage value of the energy storage element after discharging when the door opening and closing reset control signal is received.
The invention also provides an air conditioner, which comprises the control device of the air conditioner;
alternatively, the steps of the control method of the air conditioner as described above are used.
Optionally, the electric auxiliary heater of the air conditioner is arranged at an air outlet of the air conditioner.
The present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a control program of an air conditioner, and the control program of the air conditioner, when executed by a processor, implements the steps of the control method of the air conditioner as described above.
The control method of the air conditioner determines whether the electric auxiliary heat of the air conditioner is in a working state before power failure if the door opening and closing reset control signal is received after the air conditioner recovers through abnormal power failure, and obtains the power failure time length from the power failure of the air conditioner to the time when the door opening and closing reset control signal is received when the electric auxiliary heat of the air conditioner is in the working state before the power failure, so that the door opening and closing of the air conditioner is controlled in a delayed mode when the power failure time length is smaller than the first preset time length, and the complete heat dissipation of the electric auxiliary heat is ensured. The invention solves the problems that when the air conditioner is powered off again after abnormal power failure occurs, the short-time power failure occurs, the opening and closing door of the air conditioner is automatically closed, and the electric auxiliary heat with very high surface temperature is closed in a sealed environment, so that the temperature in the sealed space is rapidly increased, internal plastic parts are deformed and loosened, or the electric auxiliary heat protector acts and other abnormal conditions, so that the air conditioner cannot stably run and is damaged seriously.
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 structures shown in the drawings without creative efforts.
FIG. 1 is a flow chart illustrating an embodiment of a method for controlling an air conditioner according to the present invention;
FIG. 2 is a flow chart illustrating a control method of an air conditioner according to another embodiment of the present invention;
FIG. 3 is a flow chart illustrating a control method of an air conditioner according to another embodiment of the present invention;
FIG. 4 is a flow chart illustrating a control method of an air conditioner according to still another embodiment of the present invention;
FIG. 5 is a schematic view of a detailed process of step S200 in FIG. 1;
FIG. 6 is a functional block diagram of an embodiment of a control device of an air conditioner according to the present invention;
FIG. 7 is a schematic circuit diagram of an embodiment of a control device of an air conditioner
Fig. 8 is a schematic terminal structure diagram of an operating environment of a control device of an air conditioner according to an embodiment of the present invention.
The reference numbers illustrate:
reference numerals | Name (R) | Reference numerals | Name (R) |
10 | Integrated chip | D1 | One- |
20 | Charging and discharging circuit | R1 | Discharge resistor |
C1 | Energy storage element |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a control method of an air conditioner, which is applied to an indoor unit of the air conditioner (such as a wall-mounted unit), wherein the air conditioner can be a split floor type air conditioner, a split wall-mounted air conditioner, a ceiling type air conditioner, a movable air conditioner and a window type air conditioner. When the air conditioner is a split floor type air conditioner, a split wall type air conditioner or a ceiling type air conditioner, the air conditioner comprises an air conditioner outdoor unit and an air conditioner indoor unit. When the air conditioner is a split floor type air conditioner, the cross section of the air conditioning indoor unit 100 of the air conditioner may be circular, rectangular, or the like.
Some indoor air conditioning devices are additionally provided with electric auxiliary heat, and the electric auxiliary heat and a heat exchanger are used for heating indoor air together. In the air conditioner provided with the automatic door opening and closing and with the electric auxiliary heating, in the working process of the air conditioner, the conditions of accidental power failure such as unstable voltage, loose plug or forced power failure of a user can occur, then the air conditioner is powered on in a short time (the electric control board is reset after power failure in the time period of power failure), and the door opening and closing of the air conditioner can be automatically reset (closed). Under the mode of heating of air conditioner work to still open and have the electricity to assist the heat and carry out the heating, also under the mode of heating, when controlling the electricity simultaneously and assist the heat work, if the condition of unexpected outage appears in the air conditioner this moment, then come the electricity in the short time again (electric control board has lost power and resets in the time quantum of having a power failure), the switch door of air conditioner can automatic re-setting (close). If the time is short (such as within several seconds), the electric auxiliary heating surface temperature is still very high at the time, and the switch door of the air conditioner is automatically closed after being powered on, so that the inside of the air conditioner is isolated from the outside air, the electric auxiliary heating with very high surface temperature is closed in a closed environment, the temperature inside the closed space is easily and rapidly increased, and abnormal conditions such as deformation and loosening of internal plastic parts or action of an electric auxiliary heating protector can be caused.
In order to solve the above problem, referring to fig. 1, in an embodiment of the present invention, a control method of an air conditioner includes the following steps:
s100, after the air conditioner recovers from abnormal power failure, if a door opening and closing reset control signal is received, determining whether the air conditioner is in a working state before power failure;
it can be understood that, in the operation process of the air conditioner, the situations that a user forgets to turn off the air conditioner before going out, directly turns off a power supply main brake, directly pulls out an air conditioner plug and the like may exist, and the situations all affect the normal use of the air conditioner, for example, the user habit setting and the important operation data stored in the air conditioner are set, and if the data is not stored in the memory, the user habit setting cannot be accurately known when the air conditioner is turned on next time. Moreover, when the MCU of the air conditioner, for example, the power supply voltage of the single chip microcomputer is in an unstable state or is lower than a predefined operating voltage range (the power supply voltage of the single chip microcomputer is too low due to many reasons, such as voltage bounce, overload, insufficient energy of the energy storage element, etc.), the single chip microcomputer may be in an abnormal operating state or even be in a dead halt. Therefore, a power failure detection function and a low voltage reset function are usually provided to change the values of the registers in the single chip microcomputer to initial values, i.e., reset, when the air conditioner is powered down. When the power failure is detected, reading the air conditioner operation parameters set by a user before the power failure of the air conditioner; and writing the read air conditioner operation parameters into a nonvolatile memory for use when the air conditioner is powered on next time.
The air conditioner is provided with a memory, and the memory can store the operation parameters of the air conditioner in the operation process; the power supply voltage can be detected through the voltage detection circuit, and whether the air conditioner in operation is powered down or not is determined according to whether the power supply voltage is larger than a power-down voltage threshold or not; when the air conditioner is powered off, the MCU of the air conditioner is reset, and whether the power-off air conditioner is powered on again or not is detected; and after the air conditioner is powered up again, namely after the air conditioner is recovered through abnormal power failure, reading the operating parameters of the air conditioner during the power failure, and determining the operating state of the air conditioner during the power failure according to the operating parameters, thereby determining the working modes of the air conditioner, such as a refrigeration mode, a heating mode, a defrosting mode, a dehumidification mode, a dust removal mode, a sterilization mode and the like. And determining whether the opening and closing door needs to be reset (closed) or not when the air conditioner is powered on again according to the running state of the air conditioner when the air conditioner is powered off. And after the abnormal power failure recovery, the MCU of the air conditioner can carry out power-on reset and generate a power failure recovery signal. Therefore, when a switch door reset control signal is received, namely the switch door is in an open state, whether the electric auxiliary heater is in a working state or not in the power failure is determined, and specifically, the electric auxiliary heater can be determined by reading operation parameters in the power failure or reading historical data of the air conditioner so as to determine whether the electric auxiliary heater works or not, working time and the like.
S200, when the air conditioner is determined to be in a working state of electric auxiliary heat before power failure, acquiring the power failure time from power failure to receiving of the door opening and closing reset control signal of the air conditioner;
in this embodiment, the power-down duration of the air conditioner may be determined by an energy storage element, where the energy storage element may be a power supply element for supplying power to an MCU in the air conditioner during power-down, or may be a timer set in the air conditioner. Or a certain power supply circuit on an electric control board of the air conditioner or a filter capacitor on a signal transmission circuit, for example, a power supply circuit for controlling the electric auxiliary heating operation.
The power supply element may be a battery, or may be a device having a function of storing electric energy, such as a capacitor. The energy storage elements in the above applications have two states of starting to store electric energy when the air conditioner is powered on and consuming the stored electric energy when the air conditioner is powered off.
For example, when the energy storage element is a power supply element for supplying power to an MCU in an air conditioner, and in the operation process of the air conditioner, if it is detected that the power supply signal is switched from mains power supply to energy storage element power supply, the time when the power supply signal is switched is recorded as the power-down time; if the power supply signal is detected to be restored to the mains power supply from the energy storage element, recording the time of restoring the power supply signal as the power-on time; and according to the time interval between the power-down time and the power-on time, the power-down time from the power-down of the air conditioner to the receiving of the door opening and closing reset control signal can be confirmed.
Similarly, when the energy storage element is used for supplying power to the filter capacitor in the auxiliary heat power supply circuit, the air conditioner operates in the heating mode, and the working condition of the auxiliary heat is started, when the auxiliary heat is started, the power supply circuit starts to supply power to the auxiliary heat, the filter capacitor starts to be charged until the filter capacitor is fully charged, and when the power failure occurs, the electric quantity of the filter capacitor starts to be reduced, and when the power failure occurs again, the filter capacitor starts to be charged again. If the fact that the electric energy of the filter capacitor begins to fall is detected, recording the moment when the filter capacitor begins to fall as a power-down moment; if the situation that the electric energy of the filter capacitor starts to change from descending to ascending is detected, recording the moment when the electric energy changes from descending to ascending to recover as the electrifying moment; and according to the time interval between the power-down time and the power-on time, the power-down time from the power-down of the air conditioner to the receiving of the door opening and closing reset control signal can be confirmed.
And S300, when the power failure duration is less than the first preset duration, performing delayed door closing control on a door of the air conditioner.
It can be understood that, in the time interval from power down to receiving switch door reset control signal, because the switch door is in the open mode, for example can be full open, or half open, for example when being the angle setting with between the air inlet panel, the air conditioner stop the operation, also stop heating, outside air can get into in the casing this moment, the electricity is assisted hot can release the heat outside the casing, the temperature of electricity is assisted hot can begin to descend from the temperature of during operation, the time of power down is longer, then the residual temperature of electricity is assisted hot then is lower, and according to the difference of indoor ambient temperature, the radiating speed of electricity is assisted hot also can be different thereupon. If the time interval from power failure to power-up is too short and the ambient temperature is high, the temperature of the electric auxiliary heater is still too high. If the time interval from power down to power up is long and the ambient temperature is low, the temperature of the electric auxiliary heater may be restored to be equal to the ambient temperature or the temperature in the housing. The first preset duration can be the time required for the electric auxiliary heat to be radiated from power failure to the temperature of the electric auxiliary heat to be reduced to the temperature which cannot cause deformation of devices made of plastics in the air conditioner. The setting of the first preset time length can also be determined according to the indoor environment temperature, the power during the electric auxiliary heating work, the working time length, the set temperature of the air conditioner during the power failure, the opening degree of the switch door and the like, and different first preset time length time lengths are set according to the change of the parameters. After the power-down duration is obtained, the power-down duration is compared with a first preset duration, if the power-down duration is smaller than the first preset duration, it can be determined that the temperature of the electric auxiliary heater is still kept high, the switch door is not closed easily, the current state of the switch door is controlled to be maintained, namely the door is closed in a delayed mode, and in other embodiments, if the switch door is in an incomplete opening state, the switch door can be controlled to be opened completely, so that the contact area of the outside air and the electric auxiliary heater is increased, and the heat dissipation efficiency of the electric auxiliary heater is improved. The delay time may be set to a first preset time duration, that is, the first preset time duration is delayed after the power-down time duration is determined to be smaller than the first preset time duration. For example, the power-down time of the air conditioner is 1min, the time required for executing the above steps of confirming and judging is 1s (when a software algorithm is adopted for implementation, the time can be ignored), the first preset time is 5min, the first preset time is delayed for 5min when the door is opened and closed in a delayed manner, the total heat dissipation time of the electric auxiliary heat is 6min +1s at the moment, and is greater than the heat dissipation time required by the electric auxiliary heat by 5min, so that the temperature of the electric auxiliary heat can be reduced to the safe temperature. The delay time may also be determined according to a difference between the first preset time and the power-down time, for example, if the first preset time is 5min, and the power-down time of the air conditioner is 1min, the delay time may be set to 4 min. The delay time is specifically set according to the type of the air conditioner, the operating parameters, and the like, and is not limited herein.
The control method of the air conditioner determines whether the electric auxiliary heat of the air conditioner is in a working state before power failure if the door opening and closing reset control signal is received after the air conditioner recovers through abnormal power failure, and obtains the power failure time length from the power failure of the air conditioner to the time when the door opening and closing reset control signal is received when the electric auxiliary heat of the air conditioner is in the working state before the power failure, so that the door opening and closing of the air conditioner is controlled in a delayed mode when the power failure time length is smaller than the first preset time length, and the complete heat dissipation of the electric auxiliary heat is ensured. The invention solves the problems that when the air conditioner with the electric auxiliary heating function is in a heating mode and the electric auxiliary heating is in a working mode, the air conditioner is powered off abnormally and then powered on again, the short-time power failure occurs, the opening and closing door of the air conditioner is automatically closed, and the electric auxiliary heating with very high surface temperature is sealed in a sealed environment, so that the temperature in the sealed space is rapidly increased, the plastic parts in the sealed space are deformed and loosened, or the electric auxiliary heating protector acts and other abnormal conditions, so that the air conditioner cannot stably run, and the air conditioner is easily damaged in serious cases. The invention is beneficial to improving the stability and the safety of the air conditioner.
Referring to fig. 2, in an embodiment, the method for controlling an air conditioner further includes the steps of:
and step S400, directly closing a switch door of the air conditioner when the air conditioner is determined to be in a working state before power failure.
In this embodiment, the condition that the electric auxiliary heat is not in the working state may be that the air conditioner operates in a non-heating mode, for example, a cooling mode, a dehumidification mode, and the like, and the electric auxiliary heat is completely out of operation in the cooling mode, the dehumidification mode, and the like. Or when the user feels that the air is too hot or the temperature in the room is raised to the comfortable temperature, the electric auxiliary heat does not need to be started, or after the electric auxiliary heat is started, the temperature in the room is raised to the comfortable temperature, the electric auxiliary heat is manually turned off by the user, so that the heat is only heated through the heat exchanger when the power failure occurs. Above-mentioned condition all need not to assist the heat to the electricity and dispels the heat, can directly close the switch door of falling the air conditioner to block during dangers such as external cold air, dust, rainwater, mosquito get into the air conditioner, the safe operation of guarantee air conditioner, also can avoid the user such as child to stretch into the casing of air conditioner with the hand and damage the spare part of air conditioner simultaneously, perhaps avoid the spare part damage user's health of air conditioner, improve air conditioner and user's security. In some embodiments, the historical working condition of the electric auxiliary heater can be determined according to the historical data stored in the memory, and whether the switch door is closed in time is determined according to the historical working condition of the electric auxiliary heater, for example, the switch door can be directly closed within 1h before power failure or longer, if the electric auxiliary heater is in a working state within 2min before power failure (within any time of a time period when the electric auxiliary heater does not completely dissipate heat), the switch door can be controlled to be closed in a delayed manner, so that the electric auxiliary heater can be ensured to completely dissipate heat.
Referring to fig. 3, in an embodiment, the method for controlling an air conditioner further includes the steps of:
and S500, when the power failure time length is greater than or equal to the first preset time length, directly closing a switch door of the air conditioner.
In this embodiment, after obtaining the time length of falling the electricity, will fall the electricity and time length and first predetermineeing for a long time and compare, if fall the electricity for a long time and be greater than or first predetermineeing for a long time, then can confirm, the temperature of electricity auxiliary heating is lower this moment, has reduced to safe temperature range, closes the switch door this moment and also can not lead to the temperature rising in the air conditioner casing, perhaps the temperature amplitude that risees is little, when can not influence other parts of air conditioner, then can control the switch door and directly close the door. For example, the power-down time of the air conditioner is 10min, the time required for executing the confirmation and judgment steps is 1s (when a software algorithm is adopted for implementation, the time can be ignored), and is far longer than 5min required by the first preset time, so that the opening and closing door can be immediately closed, heat dissipation of electric auxiliary heat is not needed, the opening and closing door of the air conditioner can be directly closed, external cold air, dust, rainwater, mosquitoes and other hazards are prevented from entering the air conditioner, the safe operation of the air conditioner is guaranteed, meanwhile, a user such as a child can be prevented from stretching a hand into a shell of the air conditioner to damage parts of the air conditioner, or the parts of the air conditioner are prevented from damaging the body of the user, and the safety of the air conditioner and the user is improved.
It is understood that, in the above embodiment, step S100 and step S200 may be executed simultaneously, or step S100 may be executed before step S200, or step S200 may be executed before step S100. That is, the operation state of the air conditioner may be obtained first and then the power-down duration of the air conditioner may be obtained, or the power-down duration of the air conditioner may be obtained first and then the operation state of the air conditioner may be obtained, or the operation state and the power-down duration of the air conditioner may be obtained at the same time. For example, when the operation state is a refrigeration state, the opening and closing door of the air conditioner can be directly closed, and when the power failure duration is longer than a first preset duration, the opening and closing door of the air conditioner can also be directly closed. Specifically, the time duration of each power failure can be confirmed according to the environment temperature and the power failure frequency, for example, in the case of a current indoor environment temperature which is higher (summer), the air conditioner generally operates in a refrigeration mode, at the moment, the operating state of the operating mode and the electric auxiliary heating can be firstly obtained, once the operating state of the air conditioner is confirmed to be refrigeration, the electric auxiliary heating cannot be started, the switch door can be directly closed, the operating state of the electric auxiliary heating does not need to be confirmed, and the time duration of the power failure of the air conditioner does not need to be obtained. Or, the air conditioner is habitually powered off due to unstable power utilization environment, the power failure time is long, the power failure time duration can be obtained first, once the power failure time duration reaches a first preset time duration, the door can be directly closed, and the working state of electric auxiliary heating does not need to be confirmed.
Referring to fig. 4, in an embodiment, after the step of obtaining a power-down duration from power-down to receiving of the door opening and closing reset control signal when the air conditioner is determined to be in the operating state of the electric auxiliary heater before power-down, the control method of the air conditioner further includes:
and S600, when the power failure duration is less than a first preset duration, controlling a fan of the air conditioner to dissipate the electric auxiliary heat.
In order to further accelerate the heat dissipation efficiency of the electric auxiliary heat, the cooling of the electric auxiliary heat can be accelerated by the fan arranged in the air conditioner, and the fan controlling the air conditioner can be arranged at the fan at the air inlet, the fan at the air outlet or the fan at the air outlet at the air inlet when the electric auxiliary heat dissipates heat. The number of the fans and the rotating speed of the fans can be set according to power-down time, for example, when the power-down time of the air conditioner is determined to be short, and the temperature of the electric auxiliary heat is still high, two fans can be simultaneously started, the rotating speed of the fans is large, the power-down time of the air conditioner is determined to be long, the temperature of the electric auxiliary heat is reduced, at the moment, one fan can be simultaneously started, the rotating speed of the fan is slow, the power-down time or the heat dissipation time is close to a first preset time, the fans can be controlled to stop working, electric energy is saved, and energy conservation and environmental protection are achieved.
It can be understood that the control method of the air conditioner may also be applicable to a normal power-down working condition of the air conditioner, for example, when a shutdown signal triggered by a user is received, determining whether the operation mode of the air conditioner and the electric auxiliary heater work, and controlling the switch door to be closed in a delayed manner in the heating mode and when the electric auxiliary heater is in a working state.
Referring to fig. 5, in an embodiment, the air conditioner includes an energy storage element, and the step S200 of obtaining a power-down duration from power-down to receiving of the switch door reset control signal of the air conditioner when it is determined that the electric auxiliary heater is in a working state before the power-down specifically includes:
step S210, detecting the voltage value of the discharged energy storage element of the air conditioner when a door opening and closing reset control signal is received;
and S220, calculating the power-down time from power-down to receiving of the switch door reset control signal according to the voltage value of the energy storage element after discharging.
In this embodiment, it can be understood that the energy storage element is full of electric energy in a short time when the air conditioner operates normally, and once the air conditioner is powered off, the energy storage element starts to discharge electricity, and when the air conditioner is powered on again, the discharge is stopped. And the voltage value of the energy storage element after being discharged and the discharge time are set in inverse proportion, namely, the larger the voltage value of the energy storage element after being discharged is, the shorter the discharge time is, and further the shorter the power-down time of the air conditioner is, on the contrary, the smaller the voltage value of the energy storage element after being discharged is, the longer the discharge time is, and further the longer the power-down time of the air conditioner is, so that the voltage value of the energy storage element when being powered down, namely the difference value between the voltage value when being fully charged and the voltage value after being discharged can be calculated, and the difference value is the discharge voltage value, so that the power-down time can be determined according to the functional relation between the discharge voltage value and the power-down time.
The invention also provides a control device of an air conditioner, which comprises a processor, a memory and a control program of the air conditioner, wherein the control program of the air conditioner is stored on the memory and can run on the processor, and the steps of the control method of the air conditioner are realized when the control program of the air conditioner is executed by the processor.
Referring to fig. 6 and 7, in an embodiment, the control device of the air conditioner further includes an integrated chip 10, a charging and discharging circuit 20, and an energy storage element C1; the output end of the integrated chip 10 is connected with the charge and discharge circuit 20; wherein the content of the first and second substances,
the integrated chip 10 is configured to control the charging and discharging circuit 20 to charge the energy storage element C1 when the integrated chip is electrically assisted and heated to operate; and when the air conditioner is powered off, controlling the charging and discharging circuit 20 to discharge the energy storage element C1.
In a further embodiment, the control device of the air conditioner further comprises a voltage detection circuit, a detection end of the voltage detection circuit is connected with the energy storage element C1, and an output end of the voltage detection circuit is connected with a voltage feedback end of the integrated chip 10; wherein the content of the first and second substances,
the voltage detection circuit is used for detecting the voltage value of the energy storage element C1 after discharging; and the number of the first and second groups,
the integrated chip 10 is further configured to calculate, when receiving a gate-on/off reset control signal, a power-down time from power-down to receiving of the gate-on/off reset control signal according to a voltage value of the energy storage element C1 after discharging.
In this embodiment, the integrated chip 10 may be an MCU inside the air conditioner, or a processor in a control device of the air conditioner, or may be a memory for storing operation data of the air conditioner, and in the integrated chip 10, an erasable memory module for storing operation parameters of the air conditioner when power failure occurs is integrated. The voltage detection circuit is integrated in the integrated chip 10, for example, the voltage detection circuit may be an AD sampling circuit for collecting the energy storage element C1, but in other embodiments, the voltage detection circuit may also be a circuit formed by elements such as resistors, etc. to detect the voltage across the energy storage element C1 in real time and output the voltage to the integrated chip 10. The energy storage element C1 may be an electrolytic capacitor or a chip capacitor, and the capacitance of the energy storage element C1 may be set as required, specifically set to ensure that the energy storage element C1 can complete charging quickly when the power supply works, and can complete resetting of the integrated chip 10, storing the operation data of the air conditioner and entering a sleep state when discharging.
When the integrated chip 10 is connected to the voltage source VDD for operation, the integrated chip 10 outputs the connected voltage source VDD to the energy storage element C1 through the charging and discharging circuit 20 to supply power to the energy storage element C1, or a power supply switch is disposed in the charging and discharging circuit 20, the integrated chip 10 can control the power supply switch to be closed, and the charging and discharging circuit 20 outputs the voltage source VDD to the energy storage element C1 to supply power to the energy storage element C1. When the air conditioner is powered off, the energy storage element C1 and the charging and discharging circuit 20 form a discharging loop and supply power to the integrated chip 10, so that the integrated chip 10 stores the operation parameters; when the integrated chip 10 is an MCU inside the air conditioner, the integrated chip 10 performs power down reset under the power supply of the energy storage element C1. At this time, the integrated chip 10 may enter a low power consumption mode, that is, a sleep mode, so that the current consumed by the integrated chip 10 is rapidly reduced, and the discharge time of the energy storage element C1 can be ensured to be prolonged. When the air conditioner is powered up again, the energy storage element C1 stops supplying power, the integrated chip 10 switches to the normal mode again, and power-up and reset are performed, and the energy storage element C1 is charged again, and the process is repeated. In this process, the integrated chip 10 may collect, in real time, the voltage consumed by the energy storage element C1 in the process of powering on again after the energy storage capacitor is dropped, and may calculate the difference value, which is the discharge voltage value, according to the voltage consumed by the energy storage element C1, that is, the difference value between the voltage value of the energy storage element C1 when the power is off and the voltage value after discharging, so that the power-off duration of the air conditioner may be determined according to the functional relationship between the discharge voltage value and the power-off duration. So, when falling the electric heat of assisting is in operating condition, and falls the electric time and be less than first predetermined time length, carry out the control of closing the door of postponing to the switch door of air conditioner, ensure that the electric heat of assisting dispels the heat completely. The invention solves the problems that when the air conditioner is powered off again after abnormal power failure occurs, the short-time power failure occurs, the opening and closing door of the air conditioner is automatically closed, and the electric auxiliary heat with very high surface temperature is closed in a sealed environment, so that the temperature in the sealed space is rapidly increased, internal plastic parts are deformed and loosened, or the electric auxiliary heat protector acts and other abnormal conditions, so that the air conditioner cannot stably run and is damaged seriously.
Referring to fig. 6 and 7, in an embodiment, the charging and discharging circuit 20 includes a unidirectional conductive element D1 and a discharging resistor R1, an input terminal of the unidirectional conductive element D1 is connected to an output terminal of the integrated chip 10, an output terminal of the unidirectional conductive element D1 is connected to the energy storage element C1, and the discharging resistor R1 is connected in parallel to the unidirectional conductive element D1.
In this embodiment, the one-way conducting element D1 may be a diode, the conducting voltage drop of the diode is usually 0.7V, the voltage drop of the discharging resistor R1 during charging is greater than 0.7V, the diode is connected in parallel with the discharging resistor R1, and the integrated chip 10 is connected in series with a parallel circuit of the diode and the discharging resistor R1. When the integrated chip 10 is powered on, i.e., when the integrated chip is operating with the power supply VDD, the resistance of the diode is much smaller than that of the discharge resistor R1, and at this time, the discharge resistor R1 is bypassed, and the current charges the energy storage element C1 through the diode. When the air conditioner is powered off, the energy storage element C1 starts to discharge, and the electric energy of the energy storage element C1 is cut off in the reverse direction due to the unidirectional conduction function of the diode, and at this time, the current output by the energy storage element C1 flows to the chip through the discharge resistor R1 to discharge so as to supply power to the integrated chip 10. The discharge resistor R1 may also perform a current limiting function, so as to protect the chip and prevent the chip from being damaged by an excessive current output to the integrated chip 10. In the embodiment, after the air conditioner is started, the energy storage element C1 is charged through the integrated chip 10 and the charging diode, when the power failure occurs, the integrated chip 10 records the current working mode of the air conditioner, when the power failure resumes, the residual voltage value of the energy storage element C1 is detected, the voltage value is high, the auxiliary electric heater is started before the power failure occurs, and the fan is electrified to supply the auxiliary electric heater and cool down, and then the reset program is started; the voltage value is high, the electric auxiliary heat is not started before the power failure, and the reset program is directly started; and when the voltage value is low, the reset program is directly started, namely the switch door is closed.
The invention also provides an air conditioner which comprises the control device of the air conditioner.
The detailed structure of the control device of the air conditioner can refer to the above embodiments, and is not described herein; it can be understood that, because the control device of the air conditioner is used in the air conditioner of the present invention, the embodiment of the air conditioner of the present invention includes all technical solutions of all embodiments of the control device of the air conditioner, and the achieved technical effects are also completely the same, and are not described herein again.
The control device of the air conditioner in the embodiment of the present invention may be a PC, or may be a control device of a mobile air conditioner having a display function, such as a smart phone, a tablet computer, an e-book reader, an MP4(Moving Picture Experts Group Audio Layer IV) player, a portable computer, and the like. As shown in fig. 8, the control device of the air conditioner may include a processor 1001 (e.g., CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used for realizing connection communication among the components; the user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard); the network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface); the memory 1005 may be a high-speed RAM memory, or may be a non-volatile memory (e.g., a magnetic disk memory), and optionally, the memory 1005 may be a storage device independent of the processor 1001.
It will be understood by those skilled in the art that the controller configuration of the air conditioner in the environment where the controller hardware of the air conditioner is shown in fig. 8 does not constitute a limitation of the controller configuration of the air conditioner of the present invention and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.
In the control apparatus of the air conditioner shown in fig. 8, the network interface 1004 is mainly used for connecting to a cloud server and performing data communication with the cloud server; the network interface 1004 is also used to connect to provide a cross-contamination prevention platform that includes generic function modules for providing various service functions. The user interface 1003 may be connected to a client (user side) and performs data communication with the client; and the processor 1001 may be used to call a control program of the air conditioner stored in the memory 1005, the respective steps of the control method of the air conditioner as described above.
In one embodiment, the air conditioner further includes:
the air conditioner comprises a shell, a fan and a controller, wherein an air inlet and an air outlet are formed in the shell;
the switch door is rotatably arranged at the air outlet to open and close the air outlet; and the number of the first and second groups,
and the electric auxiliary heater is arranged at the air outlet.
In the embodiment of the invention, the air conditioner comprises a shell, a fan and a heat exchanger, wherein a heat exchange air channel is formed in the shell, and the fan and the heat exchanger are arranged in the heat exchange air channel. The casing generally includes air inlet panel and air outlet panel, for example in circular cabinet air conditioner, air inlet panel and air outlet panel can enclose and form an annular casing, and be circular-arc with the air outlet panel. In this embodiment, the air inlet panel is connected with the air outlet panel, and preferably detachably connected, for example, by using a buckle or a screw, so as to open the housing of the air conditioner. The air inlet panel is provided with an air inlet, the air outlet panel is provided with an air outlet grille or an air guide plate and a switch door, the air guide plate can also be used as the switch door, and the switch door can be driven by a driving component, such as a motor and the like, and a driven part corresponding to the motor and the like to drive the switch door to move between a closing position for closing the air outlet and an opening position for opening the air outlet relative to the air outlet panel. When the air conditioner runs, the switch door can rotate to the position of opening the air outlet, the rotating angle of the switch door can be controlled according to needs, and air after exchanging heat with the heat exchanger in the shell can be blown to the indoor space through the air outlet channel in the switch door and the part, located between the switch door and the side wall of the air outlet, of the air outlet. Through the air-out passageway in the switch door, can strengthen the wind-guiding effect of switch door, for example when the switch door rotates to different angular position, the direction of setting for can the better direction of wind to this switch door. And, the switch door is when opening the air outlet, and the switch door, for example, the wind-guiding strip can be separated into a plurality of air-out districts with the air outlet for the air-out is softer.
The electric auxiliary heat of the air conditioner can adopt PTC electric auxiliary heat and electric heating pipes. PTC is a semiconductor heating ceramic, and when the external temperature is lowered, the resistance value of PTC is reduced, and the heating value is increased accordingly. According to the principle, the air conditioner adopting the PTC electric auxiliary heating technology can automatically change the heating quantity according to the change of the room temperature and the air quantity of the indoor unit, thereby properly adjusting the room temperature and achieving the purpose of quickly and powerfully heating. The electric heating tube adopts a method that an alloy resistance wire is put into a metal tubular element, and magnesium oxide powder with good heat resistance, insulativity and thermal conductivity is filled around the resistance wire. The power of the air conditioner is constant and does not change with the external environment, and the air conditioner is widely applied to auxiliary heating of the air conditioner.
The air conditioner is also internally provided with an electric auxiliary heating protector which can be an electric auxiliary heating temperature controller and a fuse on the electric auxiliary heating, and when the temperature of the electric auxiliary heating temperature controller and the fuse reaches a set temperature, the power supply of the electric auxiliary heating is switched off. Or when the fan system is abnormal or the fan is damaged, in order to prevent the electric auxiliary heating from being dried, the power supply of the electric auxiliary heating can be cut off when the temperature is increased to the set temperature; or when the filter is dirty and blocked, the air with small air volume flows out, so that the temperature in the air conditioner is increased, the temperature controller and the fuse of the electric auxiliary heating device act, the power supply is cut off, the electric auxiliary heating dry burning is prevented from shortening the service life of the electric auxiliary heating device, and even a fire disaster can be caused in serious conditions.
When the air conditioner is in a heating mode, when an air conditioner indoor unit provided with auxiliary electric heating and electrically assisted heat runs, a user can select to independently turn on or turn off the electric assisted heat. For example, in the heating mode, when a user feels that the outlet air temperature is insufficient or the room is cold, the auxiliary electric heating is manually turned on to increase the outlet air temperature and increase the temperature increase speed in the room; when the user feels that the air is too hot or the temperature in the room is raised to a comfortable temperature, the auxiliary electric heating is manually turned off, and heating is performed only through the heat exchanger. The air conditioner can perform door delay closing control on the opening and closing door of the air conditioner after the air conditioner recovers from abnormal power failure and when the air conditioner is determined to be in a working state before the power failure and the power failure time from the power failure to the time when the door opening and closing reset control signal is received by the air conditioner is less than the first preset time, so that the complete heat dissipation of the electric auxiliary heat is ensured, and the stability and the safety of the air conditioner are improved.
The present invention also proposes a computer-readable storage medium having stored thereon a control program of an air conditioner, which when executed by a processor implements the steps of the control method of the air conditioner as described above.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. A control method of an air conditioner is characterized by comprising the following steps:
after the air conditioner recovers through abnormal power failure, if a door opening and closing reset control signal is received, whether the electric auxiliary heat of the air conditioner is in a working state before the power failure is determined;
when the electric auxiliary heat is in a working state before the air conditioner is powered down, acquiring the power-down time from the power-down of the air conditioner to the receiving of the door opening and closing reset control signal; and the number of the first and second groups,
and when the power failure duration is less than a first preset duration, performing delayed door closing control on the opening and closing of the door of the air conditioner.
2. The control method of an air conditioner according to claim 1, further comprising the steps of:
and when the air conditioner is determined not to be in the working state before the power failure, directly closing the switch door of the air conditioner.
3. The control method of an air conditioner according to claim 1, further comprising the steps of:
and when the power failure duration is greater than or equal to the first preset duration, directly closing a switch door of the air conditioner.
4. The method for controlling an air conditioner according to claim 1, wherein after the step of obtaining a power-down period from power-down of the air conditioner to receipt of the door reset control signal when it is determined that the air conditioner is in an operating state of the electric auxiliary heater before power-down, the method for controlling an air conditioner further comprises:
and when the power failure duration is less than a first preset duration, the fan of the air conditioner is also controlled to dissipate the electric auxiliary heat.
5. The method according to any one of claims 1 to 4, wherein the air conditioner includes an energy storage element, and the step of obtaining a power-down period from power-down to receiving of the switch door reset control signal when it is determined that the electric auxiliary heater is in an operating state before power-down specifically includes:
when a switch gate reset control signal is received, detecting the voltage value of the energy storage element after discharging;
and calculating the power-down time from power-down to receiving of the switch door reset control signal according to the voltage value of the energy storage element after discharging.
6. A control apparatus of an air conditioner, comprising a processor, a memory, and a control program of the air conditioner stored on the memory and operable on the processor, wherein the control program of the air conditioner, when executed by the processor, implements the steps of the control method of the air conditioner according to any one of claims 1 to 5.
7. The control device of an air conditioner according to claim 6, further comprising an integrated chip, a charge and discharge circuit, and an energy storage element; the output end of the integrated chip is connected with the charging and discharging circuit; wherein the content of the first and second substances,
the integrated chip is used for controlling the charging and discharging circuit to charge the energy storage element when the air conditioner is powered on and works, and controlling the charging and discharging circuit to discharge the energy storage element when the air conditioner is powered off.
8. The apparatus as claimed in claim 7, wherein the charge and discharge circuit includes a unidirectional conductive element and a discharge resistor, an input terminal of the unidirectional conductive element is connected to an output terminal of the ic, an output terminal of the unidirectional conductive element is connected to the energy storage element, and the discharge resistor is connected in parallel to the unidirectional conductive element.
9. The control device of an air conditioner according to claim 7, further comprising a voltage detection circuit, wherein a detection terminal of the voltage detection circuit is connected to the energy storage element, and an output terminal of the voltage detection circuit is connected to a voltage feedback terminal of the integrated chip; wherein the content of the first and second substances,
the voltage detection circuit is used for detecting the voltage value of the energy storage element after discharging; and the number of the first and second groups,
and the integrated chip is also used for calculating the time from power failure to the time of receiving the door opening and closing reset control signal according to the voltage value of the energy storage element after discharging when the door opening and closing reset control signal is received.
10. An air conditioner characterized by comprising the control device of the air conditioner according to any one of claims 6 to 9;
alternatively, the steps of the control method of the air conditioner according to any one of claims 1 to 5 are used.
11. The air conditioner according to claim 10, wherein the electric auxiliary heater of the air conditioner is disposed at an outlet of the air conditioner.
12. A computer-readable storage medium, characterized in that a control program of an air conditioner is stored thereon, which when executed by a processor implements the steps of the control method of the air conditioner according to any one of claims 1 to 5.
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