CN109323367B - Air conditioner and defrosting method and device thereof - Google Patents
Air conditioner and defrosting method and device thereof Download PDFInfo
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- CN109323367B CN109323367B CN201811124422.4A CN201811124422A CN109323367B CN 109323367 B CN109323367 B CN 109323367B CN 201811124422 A CN201811124422 A CN 201811124422A CN 109323367 B CN109323367 B CN 109323367B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
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Abstract
The application discloses air conditioner and defrosting method and device thereof, wherein the defrosting method comprises the following steps: acquiring current first output power and first output current of an indoor and outdoor motor of the air conditioner according to a preset first time interval; acquiring the current outdoor air outlet static pressure value of the air conditioner according to the first output power and the first output current; acquiring the current rotating speed of an outdoor motor in the air conditioner; acquiring a standard outdoor outlet air static pressure value matched with the current rotating speed; and judging whether the air conditioner needs to be defrosted or not according to the outdoor air outlet static pressure value and the standard outdoor air outlet static pressure value, and controlling the air conditioner to enter a defrosting mode when the air conditioner needs to be defrosted. According to the defrosting method, whether the outdoor unit frosts can be accurately judged, and accurate defrosting is carried out according to the judgment result, so that stable operation of the system can be guaranteed, energy can be saved, and the user experience is improved.
Description
Technical Field
The application relates to the technical field of frosting detection of heat exchangers, in particular to a frosting detection device of a heat exchanger, an air conditioning system and a frosting detection method of the heat exchanger.
Background
When an air conditioning system heats, the outdoor environment of the air conditioning system is frosted due to low temperature and high humidity of the external environment, and once the outdoor unit is frosted, the heat exchange capacity of the outdoor unit is rapidly reduced, so that the operation of the whole system is influenced.
In the related technology, whether the heat exchanger frosts or not can be judged according to the temperature of the coil pipe of the outdoor unit, and then the outdoor unit is defrosted, so that the system can stably operate. However, this method cannot accurately determine whether the outdoor unit is frosted, and cannot accurately defrost. If the outdoor unit is defrosted under the condition of no frosting, energy waste is easily caused, and if the defrosting mode is exited under the condition that the frost layer on the outdoor unit is not completely removed, the stable operation of the system is influenced, so that the experience degree of a user is greatly influenced.
Disclosure of Invention
The embodiment of the application provides an air conditioner and a defrosting method and device thereof, solves the problem that in the prior art, defrosting of an outdoor unit cannot be accurately performed, can accurately judge whether the outdoor unit frosts when the air conditioner is in heating operation, and performs accurate defrosting according to a judgment result, so that stable operation of a system can be ensured, energy can be saved, and user experience is improved.
In order to achieve the above object, an embodiment of a first aspect of the present application provides a defrosting method for an air conditioner, the method including the following steps: acquiring current first output power and first output current of an indoor and outdoor motor of the air conditioner according to a preset first time interval; acquiring the current outdoor air outlet static pressure value of the air conditioner according to the first output power and the first output current; acquiring the current rotating speed of an outdoor motor in the air conditioner; acquiring a standard outdoor outlet air static pressure value matched with the current rotating speed; and judging whether the air conditioner needs to be defrosted or not according to the outdoor air outlet static pressure value and the standard outdoor air outlet static pressure value, and controlling the air conditioner to enter a defrosting mode when the air conditioner needs to be defrosted.
In addition, the defrosting method of the air conditioner according to the above embodiment of the present application may further have the following additional technical features:
according to an embodiment of the present application, before obtaining the current outdoor output static pressure value of the air conditioner according to the preset first time interval, the method further includes: when the air conditioner is used for the first time, controlling the air conditioner to operate in the refrigeration mode; controlling an indoor and outdoor motor of the air conditioner to work at different rotating speeds; acquiring second output power and second output current of the outdoor motor at each rotating speed, and acquiring a standard outdoor air outlet static pressure value of the air conditioner at the rotating speed according to the second output power and the second output current; and establishing an incidence relation between different rotating speeds and corresponding standard outdoor outlet air static pressure values.
According to an embodiment of the present application, after the establishing the association relationship between the different rotation speeds and the corresponding standard outdoor outlet static pressure values, the method further includes: sending the incidence relation and the model information of the air conditioner to a server for storage; the acquiring of the standard outdoor air-out static pressure value matched with the current rotating speed comprises the following steps: obtaining the model information of the air conditioner, and sending the model information and the current rotating speed to the server; and receiving the standard outdoor air outlet static pressure value fed back by the server.
According to an embodiment of the present application, the determining whether defrosting of the air conditioner is required according to the outdoor outlet static pressure value and the standard outdoor outlet static pressure value includes: comparing the outdoor outlet static pressure value with the standard outdoor outlet static pressure value, and determining that defrosting needs to be carried out on the air conditioner if the outdoor outlet static pressure value is larger than the standard outdoor outlet static pressure value; and if the outdoor outlet static pressure value is smaller than the standard outdoor outlet static pressure value, continuously controlling the air conditioner to update the outdoor outlet static pressure value according to the first time interval.
According to an embodiment of the present application, after controlling the air conditioner to enter the defrosting operation mode, the method further includes: continuously acquiring an outdoor air outlet static pressure value of the air conditioner according to a preset second time interval; and continuously comparing the outdoor air outlet static pressure value with the standard outdoor air outlet static pressure value, and when the outdoor air outlet static pressure value is smaller than the standard outdoor air outlet static pressure value, exiting the defrosting mode and entering the heating mode again for operation.
In order to achieve the above object, an embodiment of a second aspect of the present application provides a defrosting apparatus of an air conditioner, the air conditioner operating in a heating mode, the apparatus including: the first acquisition module is used for acquiring the current first output power and the current first output current of the indoor and outdoor motors of the air conditioner according to a preset first time interval; the second acquisition module is used for acquiring the current outdoor air outlet static pressure value of the air conditioner according to the first output power and the first output current; the third acquisition module is used for acquiring the current rotating speed of the outdoor motor in the air conditioner; the fourth acquisition module is used for acquiring a standard outdoor air outlet static pressure value control module matched with the current rotating speed; the control module is used for judging whether the air conditioner needs to be defrosted or not according to the outdoor air outlet static pressure value and the standard outdoor air outlet static pressure value, and controlling the air conditioner to enter a defrosting mode when the air conditioner needs to be defrosted.
In addition, the defrosting device of the air conditioner according to the above embodiment of the present application may further have the following additional technical features:
according to an embodiment of the application, the first obtaining module is further configured to, before obtaining the current outdoor outlet static pressure value of the air conditioner according to a preset first time interval, control the air conditioner to operate in the cooling mode when the air conditioner is used for the first time, control a motor in an inner chamber of the air conditioner to operate at different rotation speeds, obtain, for each rotation speed, second output power and second output current of the outdoor motor at the rotation speed, obtain, according to the second output power and the second output current, a standard outdoor outlet static pressure value of the air conditioner at the rotation speed, and establish an association relationship between the different rotation speeds and the corresponding standard outdoor outlet static pressure value.
According to one embodiment of the application, after the first obtaining module establishes the incidence relation between different rotating speeds and corresponding standard outdoor outlet static pressure values, the first obtaining module is further used for sending the incidence relation and the type information of the air conditioner to a server for storage; the fourth obtaining module obtains a standard outdoor air-out static pressure value matched with the current rotating speed, wherein the fourth obtaining module obtains model information of the air conditioner, sends the model information and the current rotating speed to the server, and receives the standard outdoor air-out static pressure value fed back by the server.
According to an embodiment of the application, the control module determines whether defrosting of the air conditioner is needed according to the outdoor outlet static pressure value and the standard outdoor outlet static pressure value, wherein the control module compares the outdoor outlet static pressure value with the standard outdoor outlet static pressure value, determines that defrosting of the air conditioner is needed when the outdoor outlet static pressure value is larger than the standard outdoor outlet static pressure value, and continuously controls the air conditioner to update the outdoor outlet static pressure value according to the first time interval when the outdoor outlet static pressure value is smaller than the standard outdoor outlet static pressure value.
According to an embodiment of the application, after the control module controls the air conditioner to enter the defrosting operation mode, the control module is further configured to continue to obtain an outdoor outlet static pressure value of the air conditioner according to a preset second time interval, continue to compare the outdoor outlet static pressure value with the standard outdoor outlet static pressure value, exit the defrosting mode when the outdoor outlet static pressure value is smaller than the standard outdoor outlet static pressure value, and enter the heating mode again to operate.
In order to achieve the above object, an embodiment of the present application provides an air conditioner, including the above defrosting device of the air conditioner.
To achieve the above object, an embodiment of the present application provides an electronic device, including: the defrosting method of the air conditioner comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the program to realize the defrosting method of the air conditioner.
To achieve the above object, an embodiment of the present application provides a non-transitory computer readable storage medium having a computer program stored thereon, where the computer program is executed by a processor to implement the defrosting method of an air conditioner.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
1. according to the method and the device, when the air conditioner is in heating operation, whether the outdoor unit frosts can be accurately judged by comparing the current outdoor air-out static pressure value of the air conditioner with the standard outdoor air-out static pressure value matched with the current rotating speed, and frosting can be accurately performed according to the judgment result, so that stable operation of the system can be guaranteed, energy can be saved, and the user experience is improved.
2. In one embodiment of the application, when the air conditioner is in heating operation, whether the outdoor unit frosts or not is accurately judged according to the change situation of the outdoor air outlet static pressure value, so that accurate defrosting of the air conditioner is realized.
3. In another embodiment of the application, in the defrosting process of the air conditioner, the outdoor air-out static pressure value of the air conditioner is continuously acquired at intervals, and whether defrosting is finished or not is judged by comparing the continuously acquired outdoor air-out static pressure value with the standard outdoor air-out static pressure value matched with the current rotating speed, so that defrosting can be accurately performed, and energy can be saved.
Drawings
Fig. 1 is a flowchart of a defrosting method of an air conditioner according to an embodiment of the present application;
FIG. 2 is a flowchart of a defrosting method of an air conditioner according to an embodiment of the present application;
fig. 3 is a block schematic diagram of a defrosting apparatus of an air conditioner according to an embodiment of the present application.
Detailed Description
According to the method and the device, whether the outdoor unit frosts can be accurately judged by comparing the obtained current outdoor air-out static pressure value of the air conditioner with the standard outdoor air-out static pressure value matched with the current rotating speed, and the frosting can be accurately changed according to the judgment result, so that the stable operation of the system can be ensured, the energy can be saved, and the user experience is improved.
For a better understanding of the above technical solutions, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
A defrosting method of an air conditioner, a defrosting apparatus of an air conditioner, an electronic device, and a temporary computer-readable storage medium proposed according to embodiments of the present application are described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a defrosting method of an air conditioner according to an embodiment of the present application. As shown in fig. 1, a defrosting method of an air conditioner according to an embodiment of the present application may include the steps of:
and S1, acquiring the current first output power and first output current of the motor outside the indoor chamber of the air conditioner according to the preset first time interval.
Specifically, when the air conditioner is operated in the heating mode, at a first time interval (e.g., n minutes), the current first output power P1 of the motor outside the air conditioner indoor is obtained through a power detection device (e.g., a power sensor) built in the air conditioner, and the current first output current I1 of the motor outside the air conditioner indoor is obtained through a current detection device (e.g., a current sensor) built in the air conditioner. The first time interval may be calibrated according to actual conditions, for example, the first time interval may be N minutes.
And S2, acquiring the current outdoor outlet static pressure value of the air conditioner according to the first output power and the first output current.
The output power Pn and the output current In of the outdoor motor In the air conditioner have a certain relationship with the outdoor outlet static pressure value SPn of the air conditioner, namely SPn is f (Pn, In), so that the current first output power P1 and the current first output current I1 of the motor outside the air conditioner are obtained, and the current outdoor outlet static pressure value SP1 of the air conditioner can be calculated through the relationship.
And S3, acquiring the current rotating speed of the outdoor motor in the air conditioner.
The current rotating speed of the outdoor motor in the air conditioner can be obtained through a rotating speed detection device (such as a rotating speed sensor) arranged in the air conditioner.
And S4, acquiring a standard outdoor air outlet static pressure value matched with the current rotating speed.
And the standard outdoor outlet static pressure value is matched with the current rotating speed, namely the corresponding outdoor outlet static pressure value under the condition that the outdoor unit is not frosted when the outdoor motor in the air conditioner runs at the current rotating speed in the heating running process of the air conditioner.
And S5, judging whether the air conditioner needs defrosting according to the outdoor air outlet static pressure value and the standard outdoor air outlet static pressure value, and controlling the air conditioner to enter a defrosting mode when the air conditioner needs defrosting.
According to an embodiment of the application, according to outdoor air-out static pressure value and standard outdoor air-out static pressure value, judge whether need to change the frost to the air conditioner, include: comparing the outdoor outlet static pressure value with a standard outdoor outlet static pressure value, and determining that the air conditioner needs to be defrosted if the outdoor outlet static pressure value is greater than the standard outdoor outlet static pressure value; and if the outdoor outlet static pressure value is smaller than the standard outdoor outlet static pressure value, continuously controlling the air conditioner to update the outdoor outlet static pressure value according to the first time interval.
It can be understood that when the outdoor unit is not frosted, the wind resistance is small, and the output power and the output current of the outdoor motor are small, so that the outdoor outlet static pressure value is small, i.e. the outdoor outlet static pressure value is smaller than the standard outdoor outlet static pressure value, and when the outdoor unit is frosted, the wind resistance is large, and the output power and the output current of the outdoor motor are large, so that the outdoor outlet static pressure value is large and the outdoor outlet static pressure value is larger than the standard outdoor outlet static pressure value, therefore, whether the outdoor unit is frosted or not can be judged by comparing the outdoor outlet static pressure value with the standard outdoor outlet static pressure value matched with the current rotating speed, so as to judge whether the air conditioner needs to be defrosted or not. In practical application, in order to ensure timeliness and accuracy of frost judgment, after the outdoor air-out static pressure value is judged to be smaller than the standard outdoor air-out static pressure value, the outdoor air-out static pressure value is updated at intervals of a first time interval, and the updated outdoor air-out static pressure value is compared with the standard outdoor air-out static pressure value to judge whether defrosting of the air conditioner is needed.
Therefore, in the embodiment of the application, according to a preset first time interval, a current outdoor air outlet static pressure value of the air conditioner and a standard outdoor air outlet static pressure value matched with the current rotating speed are obtained, the obtained outdoor air outlet static pressure value is compared with the standard outdoor air outlet static pressure value, whether defrosting of the air conditioner is needed or not is judged, and the air conditioner is controlled to enter a defrosting mode when defrosting is judged to be needed. Therefore, whether the outdoor unit frosts can be accurately judged, and accurate defrosting is carried out according to the judgment result, so that stable operation of the system can be ensured, energy can be saved, and the user experience is improved.
According to an embodiment of the present application, before obtaining the current outdoor outlet static pressure value of the air conditioner according to the preset first time interval, the method further includes: when the air conditioner is used for the first time, the air conditioner is controlled to operate in a refrigeration mode; controlling an indoor motor and an outdoor motor of the air conditioner to work at different rotating speeds; acquiring second output power and second output current of the outdoor motor at each rotating speed, and acquiring a standard outdoor air outlet static pressure value of the air conditioner at the rotating speed according to the second output power and the second output current; and establishing an incidence relation between different rotating speeds and corresponding standard outdoor outlet air static pressure values.
In practical application, in the process that the air conditioner operates in the heating mode, the current outdoor outlet static pressure value of the air conditioner can be compared with the standard outdoor outlet static pressure value matched with the current rotating speed to judge whether the outdoor unit frosts, so that before the current outdoor outlet static pressure value of the air conditioner is obtained, the standard static pressure values corresponding to different rotating speeds of the outdoor motor need to be obtained and stored in the system, and the standard static pressure values are called when the outdoor unit frosts is judged.
Specifically, the air conditioner may be activated for the first time when the air conditioner is first used. During the first activation of the air conditioner, the air conditioner can be controlled to operate in a cooling mode, and at the moment, the outdoor motor is controlled to work at different rotating speeds in sequence, wherein the rotating speed is gradually reduced from high to low. For example, the rotating speed of the outdoor motor is n1, n2, … and nx in sequence, and n1 is more than n2 is more than … is more than nx.
Further, in the process of controlling the outdoor motor to work at different rotating speeds, second output power and second output current of the outdoor motor corresponding to the different rotating speeds can be sequentially obtained, and according to the second output power and the second output current, the standard outdoor outlet static pressure value of the air conditioner at the different rotating speeds is calculated by combining the output power, the output current and the relation between the outdoor outlet static pressure value, for example, when the current rotating speed of the outdoor motor is n1, the second output power of the outdoor motor at the current rotating speed is P2, the second output current is I2, and thus the standard outdoor outlet static pressure value of the air conditioner at the current rotating speed is SP 2; when the current rotating speed of the outdoor motor is n2, acquiring that the second output power of the outdoor motor is P3 and the second output current is I3 at the current rotating speed, and calculating the standard outdoor outlet static pressure value of the air conditioner at the current rotating speed to be SP 3; …, respectively; and when the current rotating speed of the outdoor motor is nx, acquiring that the second output power of the outdoor motor is Px +1 and the second output current is Ix +1 at the current rotating speed, so as to calculate that the standard outdoor outlet static pressure value of the air conditioner at the current rotating speed is SPx + 1.
And further, the rotating speed of the outdoor motor can be associated with the standard outdoor air outlet static pressure value of the air conditioner calculated at the current rotating speed, and a corresponding association relation is established. For example, the rotation speed n1 of the outdoor motor is associated with the corresponding standard outdoor outlet static pressure value SP2, the rotation speed n2 of the outdoor motor is associated with the corresponding standard outdoor outlet static pressure value SP3, …, the rotation speed nx of the outdoor motor is associated with the corresponding standard outdoor outlet static pressure value SPx +1, and the association is stored in the system.
It should be noted that, before the air conditioner leaves the factory, the air conditioner may be activated for the first time to obtain the association relationship between different rotation speeds and the corresponding standard outdoor outlet static pressure values, and the association relationship is stored in the system; or, when the user uses the air conditioner for the first time, the air conditioner can be activated for the first time to obtain the incidence relation between different rotating speeds and the corresponding standard outdoor air outlet static pressure value, and the incidence relation is stored in the system.
According to an embodiment of the present application, after the association relationship between the different rotation speeds and the corresponding standard outdoor outlet static pressure values is established, the method further includes: sending the incidence relation and the model information of the air conditioner to a server for storage; obtain the standard outdoor air-out static pressure value that matches with current rotational speed, include: acquiring the model information of the air conditioner, and sending the model information and the current rotating speed to a server; and receiving a standard outdoor air outlet static pressure value fed back by the server.
Specifically, after the association relationship between the different rotation speeds and the corresponding standard outdoor outlet static pressure values is obtained, the association relationship and the corresponding model information of the air conditioner (for example, information of the model and the type of the air conditioner) may be stored in the server so as to be called when the standard outdoor outlet static pressure values are obtained.
Therefore, in practical application, after the current rotating speed of the outdoor motor in the air conditioner is obtained, the model information of the air conditioner can be obtained, and the model information and the current rotating speed of the outdoor motor are sent to the server. At this time, the server can call out the corresponding association relationship according to the model information of the air conditioner, and find out the standard outdoor air-out static pressure value corresponding to the current rotating speed from the called association relationship according to the current rotating speed of the outdoor motor, so that the standard outdoor air-out static pressure value corresponding to the current rotating speed can be quickly and effectively obtained.
According to an embodiment of the application, after controlling the air conditioner to enter the defrosting operation mode, the method further comprises the following steps: continuously acquiring an outdoor air outlet static pressure value of the air conditioner according to a preset second time interval; and continuously comparing the outdoor outlet static pressure value with the standard outdoor outlet static pressure value, and when the outdoor outlet static pressure value is smaller than the standard outdoor outlet static pressure value, exiting the defrosting mode and entering the heating mode again for operation.
It can be understood that the outdoor outlet static pressure value has a certain relationship with the frosting degree, and the larger the outdoor outlet static pressure value is, the more serious the frosting degree is; the smaller the outdoor outlet static pressure value is, the lower the frosting degree is.
Therefore, in practical applications, after the air conditioner is controlled to enter the defrosting operation mode, that is, during defrosting, at every preset second time interval (for example, X seconds), the outdoor air-out static pressure value of the air conditioner needs to be continuously obtained, and the continuously obtained outdoor air-out static pressure value of the air conditioner is compared with the standard outdoor standard air-out static pressure value, so as to determine the current frosting degree of the outdoor unit, that is, determine the defrosting progress of the air conditioner. If the outdoor air outlet static pressure value is smaller than the standard outdoor air outlet static pressure value, the current frosting degree of the outdoor unit is low, the air conditioner completes defrosting, and at the moment, the air conditioner can be controlled to exit the defrosting mode and enter the heating mode again for operation. Therefore, the outdoor unit can be defrosted more accurately, and energy can be saved.
In order to make the present application more clear to those skilled in the art, the defrosting method of the air conditioner will be further described below with reference to specific examples of the present application.
Specifically, as shown in fig. 2, the defrosting method of the air conditioner may include the steps of:
s201, when the air conditioner is activated for the first time, controlling the air conditioner to operate in a refrigeration mode.
S202, controlling the indoor and outdoor motors of the air conditioner to work at different rotating speeds, obtaining second output power and second output current of the outdoor motor at the current rotating speed according to each rotating speed, obtaining a standard outdoor air outlet static pressure value of the air conditioner at the rotating speed according to the second output power and the second output current, and storing the standard outdoor air outlet static pressure value in the system. Wherein, the rotating speed of the outdoor motor is gradually reduced from high to low.
S203, when the air conditioner operates in the heating mode, acquiring the current first output power and first output current of the outdoor motor every N minutes, and calculating the current outdoor air outlet static pressure value of the air conditioner according to the first output power and the first output current.
And S204, acquiring the current rotating speed of an outdoor motor in the air conditioner, and acquiring a standard outdoor outlet static pressure value matched with the current rotating speed.
And S205, judging whether the current outdoor outlet static pressure value of the air conditioner is larger than the standard outdoor outlet static pressure value matched with the current rotating speed. If yes, go to step S206; if not, step S203 is executed.
And S206, controlling the air conditioner to enter a defrosting mode.
And S207, continuously acquiring the outdoor air outlet static pressure value of the air conditioner every X seconds.
And S208, judging whether the continuously acquired outdoor outlet static pressure value of the air conditioner is larger than the standard outdoor outlet static pressure value matched with the current rotating speed. If yes, go to step S207; if not, step S209 is performed.
And S209, exiting the defrosting mode and re-entering the heating mode to operate.
In summary, according to the defrosting method of the air conditioner in the embodiment of the application, when the air conditioner operates in the heating mode, according to the preset first time interval, the current first output power and the current first output current of the motor outside and inside the air conditioner are obtained, the current outdoor air-out static pressure value of the air conditioner is obtained according to the first output power and the first output current, the current rotating speed of the motor outside and inside the air conditioner is obtained, the standard outdoor air-out static pressure value matched with the current rotating speed is obtained, whether the air conditioner needs to be defrosted is judged according to the outdoor air-out static pressure value and the standard outdoor air-out static pressure value, and when the air conditioner is judged to need to be defrosted, the air conditioner is controlled to enter the defrosting mode. Therefore, when the air conditioner is in heating operation, whether the outdoor unit frosts can be accurately judged, and accurate defrosting is carried out according to the judgment result, so that stable operation of the system can be ensured, energy can be saved, and the experience degree of a user is improved.
Fig. 3 is a block schematic diagram of a defrosting apparatus of an air conditioner according to an embodiment of the present application. Wherein the air conditioner operates in a heating mode. As shown in fig. 3, the defrosting apparatus of an air conditioner according to an embodiment of the present application may include a first obtaining module 100, a second obtaining module 200, a third obtaining module 300, a fourth obtaining module 400, and a control module 500.
The first obtaining module 100 is configured to obtain a current first output power and a current first output current of an outdoor motor in an indoor chamber of the air conditioner according to a preset first time interval; the second obtaining module 200 is configured to obtain a current outdoor outlet static pressure value of the air conditioner according to the first output power and the first output current; the third obtaining module 300 is configured to obtain a current rotation speed of an indoor and outdoor motor of the air conditioner; the fourth obtaining module 400 is configured to obtain a standard outdoor outlet static pressure value matched with the current rotation speed; the control module 500 is configured to determine whether the air conditioner needs to be defrosted according to the outdoor outlet static pressure value and the standard outdoor outlet static pressure value, and control the air conditioner to enter a defrosting mode when it is determined that defrosting is needed.
According to an embodiment of the application, the first obtaining module 100 is further configured to, before obtaining the current outdoor outlet static pressure value of the air conditioner according to a preset first time interval, control the air conditioner to operate in a cooling mode when the air conditioner is used for the first time, control an internal chamber motor of the air conditioner to operate at different rotation speeds, obtain, for each rotation speed, a second output power and a second output current of the external motor at the rotation speed, obtain, according to the second output power and the second output current, a standard outdoor outlet static pressure value of the air conditioner at the rotation speed, and establish an association relationship between the different rotation speeds and the corresponding standard outdoor outlet static pressure value.
According to an embodiment of the application, after the first obtaining module 100 establishes the association relationship between different rotating speeds and corresponding standard outdoor outlet static pressure values, the first obtaining module is further configured to send the association relationship and the model information of the air conditioner to the server for storage; the fourth obtaining module 400 obtains a standard outdoor outlet static pressure value matched with the current rotating speed, wherein the fourth obtaining module 400 obtains model information of the air conditioner, sends the model information and the current rotating speed to the server, and receives the standard outdoor outlet static pressure value fed back by the server.
According to an embodiment of the application, the control module 500 determines whether defrosting of the air conditioner is needed according to the outdoor outlet static pressure value and the standard outdoor outlet static pressure value, wherein the control module 500 compares the outdoor outlet static pressure value with the standard outdoor outlet static pressure value, determines that defrosting of the air conditioner is needed when the outdoor outlet static pressure value is greater than the standard outdoor outlet static pressure value, and continues to control the air conditioner to update the outdoor outlet static pressure value according to the first time interval when the outdoor outlet static pressure value is less than the standard outdoor outlet static pressure value.
According to an embodiment of the application, after the control module 500 controls the air conditioner to enter the defrosting operation mode, the control module is further configured to continue to obtain the outdoor outlet static pressure value of the air conditioner according to a preset second time interval, continue to compare the outdoor outlet static pressure value with the standard outdoor outlet static pressure value, exit the defrosting mode when the outdoor outlet static pressure value is smaller than the standard outdoor outlet static pressure value, and enter the heating mode again.
It should be noted that, details that are not disclosed in the defrosting apparatus of the air conditioner in the embodiment of the present application refer to details that are disclosed in the defrosting method of the air conditioner in the embodiment of the present application, and detailed descriptions thereof are omitted here.
According to the defrosting device of the air conditioner, when the air conditioner runs in a heating mode, the current first output power and the current first output current of the motor outside an inner chamber of the air conditioner are obtained through the first obtaining module according to the preset first time interval, the current outdoor air-out static pressure value of the air conditioner is obtained through the second obtaining module according to the first output power and the first output current, the current rotating speed of the motor outside the inner chamber of the air conditioner is obtained through the third obtaining module, the standard outdoor air-out static pressure value matched with the current rotating speed is obtained through the fourth obtaining module, whether the air conditioner needs to be defrosted or not is judged through the control module according to the outdoor air-out static pressure value and the standard outdoor air-out static pressure value, and when defrosting is judged to be needed, the air conditioner is controlled to enter a defrosting mode. Therefore, when the air conditioner is in heating operation, whether the outdoor unit frosts can be accurately judged, and accurate defrosting is carried out according to the judgment result, so that stable operation of the system can be ensured, energy can be saved, and the experience degree of a user is improved.
In addition, the embodiment of the application also provides an air conditioner, which comprises the defrosting device of the air conditioner.
According to the air conditioner, through the defrosting device of the air conditioner, when the air conditioner is used for heating, whether the outdoor unit frosts can be accurately judged, and whether the outdoor unit frosts can be accurately defrosted according to the judgment result, so that stable operation of the system can be ensured, energy can be saved, and the experience degree of a user is improved.
In addition, an embodiment of the present application also provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program for implementing the defrosting method of the air conditioner.
According to the electronic equipment provided by the embodiment of the application, by executing the defrosting method of the air conditioner, when the air conditioner is in heating operation, whether the outdoor unit is frosted can be accurately judged, and the defrosting is accurately carried out according to the judgment result, so that the stable operation of the system can be ensured, the energy can be saved, and the user experience is improved.
Furthermore, an embodiment of the present application also proposes a non-transitory computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements the defrosting method of an air conditioner as described above.
According to the non-transitory computer readable storage medium of the embodiment of the application, by executing the defrosting method of the air conditioner, when the air conditioner is in heating operation, whether the outdoor unit is frosted can be accurately judged, and accurate defrosting is performed according to the judgment result, so that stable operation of the system can be ensured, energy can be saved, and the user experience is improved.
As will be appreciated by one skilled in the art, 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 an entirely hardware embodiment, an entirely 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, disk storage, CD-ROM, 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 flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (11)
1. A defrosting method of an air conditioner, wherein the air conditioner operates in a heating mode, the method comprising the steps of:
acquiring current first output power and first output current of an indoor and outdoor motor of the air conditioner according to a preset first time interval;
acquiring the current outdoor air outlet static pressure value of the air conditioner according to the first output power and the first output current;
acquiring the current rotating speed of an outdoor motor in the air conditioner;
acquiring a standard outdoor outlet air static pressure value matched with the current rotating speed;
judging whether the air conditioner needs to be defrosted or not according to the outdoor air outlet static pressure value and the standard outdoor air outlet static pressure value, and controlling the air conditioner to enter a defrosting mode when the defrosting is judged to be needed;
before obtaining the current outdoor air-out static pressure value of the air conditioner according to the preset first time interval, the method further comprises the following steps:
when the air conditioner is used for the first time, controlling the air conditioner to operate in a refrigeration mode;
controlling an indoor and outdoor motor of the air conditioner to work at different rotating speeds;
acquiring second output power and second output current of the outdoor motor at each rotating speed, and acquiring a standard outdoor air outlet static pressure value of the air conditioner at the rotating speed according to the second output power and the second output current;
and establishing an incidence relation between different rotating speeds and corresponding standard outdoor outlet air static pressure values.
2. The method of claim 1, wherein after establishing the correlation between the different rotation speeds and the corresponding standard outdoor outlet static pressure values, the method further comprises:
sending the incidence relation and the model information of the air conditioner to a server for storage;
the acquiring of the standard outdoor air-out static pressure value matched with the current rotating speed comprises the following steps:
obtaining the model information of the air conditioner, and sending the model information and the current rotating speed to the server;
and receiving the standard outdoor air outlet static pressure value fed back by the server.
3. The method according to any one of claims 1-2, wherein the determining whether defrosting of the air conditioner is required according to the outdoor outlet static pressure value and the standard outdoor outlet static pressure value comprises:
comparing the outdoor outlet static pressure value with the standard outdoor outlet static pressure value, and determining that defrosting needs to be carried out on the air conditioner if the outdoor outlet static pressure value is larger than the standard outdoor outlet static pressure value; and if the outdoor outlet static pressure value is smaller than the standard outdoor outlet static pressure value, continuously controlling the air conditioner to update the outdoor outlet static pressure value according to the first time interval.
4. The method of claim 3, wherein after controlling the air conditioner to enter the defrosting mode, the method further comprises:
continuously acquiring an outdoor air outlet static pressure value of the air conditioner according to a preset second time interval;
and continuously comparing the outdoor air outlet static pressure value with the standard outdoor air outlet static pressure value, and when the outdoor air outlet static pressure value is smaller than the standard outdoor air outlet static pressure value, exiting the defrosting mode and entering the heating mode again for operation.
5. A defrosting apparatus of an air conditioner, wherein the air conditioner operates in a heating mode, the apparatus comprising:
the first acquisition module is used for acquiring the current first output power and the current first output current of the indoor and outdoor motors of the air conditioner according to a preset first time interval;
the second acquisition module is used for acquiring the current outdoor air outlet static pressure value of the air conditioner according to the first output power and the first output current;
the third acquisition module is used for acquiring the current rotating speed of the outdoor motor in the air conditioner;
the fourth acquisition module is used for acquiring a standard outdoor air outlet static pressure value matched with the current rotating speed;
the control module is used for judging whether the air conditioner needs to be defrosted or not according to the outdoor air outlet static pressure value and the standard outdoor air outlet static pressure value, and controlling the air conditioner to enter a defrosting mode when the air conditioner needs to be defrosted; the first obtaining module is used for controlling the air conditioner to operate in a cooling mode and controlling a motor in an inner chamber of the air conditioner to work at different rotating speeds before obtaining the current outdoor outlet static pressure value of the air conditioner according to a preset first time interval and when the air conditioner is used for the first time, obtaining second output power and second output current of the outdoor motor at the rotating speeds according to each rotating speed, obtaining a standard outdoor outlet static pressure value of the air conditioner at the rotating speeds according to the second output power and the second output current, and establishing an association relation between the different rotating speeds and the corresponding standard outdoor outlet static pressure value.
6. The device of claim 5, wherein the first obtaining module is further configured to send the association relationship and the model information of the air conditioner to a server for storage after establishing the association relationship between different rotation speeds and corresponding standard outdoor outlet static pressure values;
the fourth obtaining module obtains a standard outdoor air-out static pressure value matched with the current rotating speed, wherein the fourth obtaining module obtains model information of the air conditioner, sends the model information and the current rotating speed to the server, and receives the standard outdoor air-out static pressure value fed back by the server.
7. The device according to claim 5 or 6, wherein the control module determines whether defrosting of the air conditioner is required according to the outdoor outlet static pressure value and the standard outdoor outlet static pressure value, wherein the control module compares the outdoor outlet static pressure value with the standard outdoor outlet static pressure value, determines that defrosting of the air conditioner is required when the outdoor outlet static pressure value is greater than the standard outdoor outlet static pressure value, and continuously controls the air conditioner to update the outdoor outlet static pressure value according to the first time interval when the outdoor outlet static pressure value is less than the standard outdoor outlet static pressure value.
8. The device of claim 7, wherein after the control module controls the air conditioner to enter the defrosting mode, the control module is further configured to continue to obtain an outdoor outlet static pressure value of the air conditioner according to a preset second time interval, continue to compare the outdoor outlet static pressure value with the standard outdoor outlet static pressure value, exit the defrosting mode when the outdoor outlet static pressure value is smaller than the standard outdoor outlet static pressure value, and re-enter the heating mode to operate.
9. An air conditioner, comprising: the defrosting apparatus of an air conditioner according to any one of claims 5 to 8.
10. An electronic device, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the defrosting method of the air conditioner according to any one of claims 1 to 4.
11. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein the program is executed by a processor for implementing the defrosting method of the air conditioner according to any one of claims 1 to 4.
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| CN110030666A (en) * | 2019-04-22 | 2019-07-19 | 宁波奥克斯电气股份有限公司 | A kind of defrosting control method, device and air conditioner |
| CN113915731A (en) * | 2020-07-09 | 2022-01-11 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
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