CN108692433B - Heating control method and device for variable frequency air conditioner and variable frequency air conditioner - Google Patents
Heating control method and device for variable frequency air conditioner and variable frequency air conditioner Download PDFInfo
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- CN108692433B CN108692433B CN201810785259.XA CN201810785259A CN108692433B CN 108692433 B CN108692433 B CN 108692433B CN 201810785259 A CN201810785259 A CN 201810785259A CN 108692433 B CN108692433 B CN 108692433B
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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
- F24F11/67—Switching between heating and cooling modes
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Abstract
The invention provides a heating control method and device of an inverter air conditioner and the inverter air conditioner. The heating control method of the variable frequency air conditioner comprises the following steps: when a heating mode is started and the detected variable frequency air conditioner is in a high-temperature working condition, acquiring the operation data of the variable frequency air conditioner and the temperature of a mainboard module according to a preset time period; and controlling the working state of the outer fan according to the collected operation data and the temperature of the main board module so as to realize high-temperature protection. The scheme reduces the system pressure by adjusting the working state of the outer fan, replaces the down-regulated air conditioning frequency, and can ensure the use effect of the variable frequency air conditioner while ensuring the reliability of the compressor. And the working state of the outer fan is controlled by the temperature of the main board module of the variable frequency air conditioner, so that the phenomenon that the temperature of the main board module is overhigh due to the change of the working state of the outer fan can be avoided, and the variable frequency air conditioner is damaged.
Description
Technical Field
The invention relates to the technical field of variable frequency air conditioners, in particular to a heating control method and device of a variable frequency air conditioner and the variable frequency air conditioner.
Background
In order to meet the diversified requirements of users, the air conditioner usually needs to work in a special working condition and a special mode. However, often, operating a particular mode under particular operating conditions can cause damage to the air conditioner itself. For example, when the air conditioner is heated under a high-temperature working condition, the pressure of the air conditioning system is ultrahigh due to high indoor and outdoor temperatures, the exhaust temperature and the temperature of a compressor winding are correspondingly high, and the service life of the compressor is influenced.
In order to solve the above problems, in the inverter air conditioner in the related art, the pressure of the air conditioning system is reduced by a method of reducing the frequency, but when the pressure is still ultrahigh after the frequency is reduced to the lowest operating frequency, the air conditioner can only be stopped, and the use effect of the air conditioner and the reliability of the compressor cannot be considered at the same time.
Disclosure of Invention
In view of this, the present invention is directed to a heating control method for an inverter air conditioner, so that the inverter air conditioner can heat under a high temperature condition while taking both the use effect and the reliability of the compressor into consideration.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a heating control method of a variable frequency air conditioner is applied to the variable frequency air conditioner and comprises the following steps: when a heating mode is started and the detected variable frequency air conditioner is in a high-temperature working condition, acquiring the operation data of the variable frequency air conditioner and the temperature of a mainboard module according to a preset time period; and controlling the working state of the outer fan according to the collected operation data and the temperature of the main board module so as to realize high-temperature protection.
Further, the operation data includes an outer ring temperature, an outer disk temperature and an inner disk temperature, and the step of controlling the working state of the outer fan according to the collected operation data and the temperature of the main board module includes: and when the outer ring temperature is not lower than a preset first temperature threshold, the outer disc temperature is not lower than a preset second temperature threshold, the inner disc temperature is not lower than a preset third temperature threshold, and the temperature of the main board module is not higher than a preset fourth temperature threshold, controlling the outer fan to stop working.
Further, the operation data includes an outer ring temperature, an outer disc temperature, an inner disc temperature and a compressor operation frequency, and the step of controlling the working state of the outer fan according to the collected operation data and the temperature of the main board module includes: and when the outer ring temperature is not lower than a preset first temperature threshold, the outer disc temperature is not lower than a preset second temperature threshold, the inner disc temperature is not lower than a preset third temperature threshold, the compressor running frequency belongs to the lowest frequency of the compressor, and the temperature of the main board module is not higher than a preset fourth temperature threshold, controlling the outer fan to stop working.
Further, the operation data includes an outer ring temperature, an outer disc temperature, an inner disc temperature, a compressor operation frequency and a first duration of the outer fan in the operation state, and the step of controlling the working state of the outer fan according to the collected operation data and the temperature of the main board module includes: and when the outer ring temperature is not lower than a preset first temperature threshold, the outer disc temperature is not lower than a preset second temperature threshold, the inner disc temperature is not lower than a preset third temperature threshold, the compressor running frequency belongs to the lowest frequency of the compressor, the first duration exceeds a preset first time threshold, and the temperature of the main board module does not exceed a preset fourth temperature threshold, controlling the outer fan to stop working.
Further, the step of controlling the working state of the outer fan according to the collected operation data and the temperature of the main board module further comprises: after the external fan enters a stop working state, judging whether the collected running data or the temperature of the main board module meets a high-temperature protection exit condition; and if the high-temperature protection exit condition is met, controlling the external fan to restart to operate.
Further, after the external fan enters the stop working state, the acquired operation data further includes a second duration of the external fan being in the stop state, and the high-temperature protection exit condition includes any one of the following conditions: the second duration is not less than a preset second time threshold; the temperature of the inner disc does not exceed a preset fifth temperature threshold; the temperature of the outer disc does not exceed a preset sixth temperature threshold; or the temperature of the mainboard module exceeds a preset seventh temperature threshold; wherein the fifth temperature threshold is less than the third temperature threshold, the sixth temperature threshold is less than the second temperature threshold, and the seventh temperature threshold is greater than the fourth temperature threshold.
Compared with the prior art, the heating control method of the variable frequency air conditioner has the following advantages:
according to the heating control method of the variable frequency air conditioner, when the heating mode is started and the detected variable frequency air conditioner is in a high-temperature working condition, the operation data of the variable frequency air conditioner and the temperature of the mainboard module are continuously collected. And controlling the working state of the outer fan according to the collected running data and the temperature of the main board module so as to realize high-temperature protection. Namely, the pressure of the system is reduced by adjusting the working state of the outer fan, the frequency of the air conditioner is adjusted downward instead, the reliability of the compressor is ensured, and the using effect of the variable frequency air conditioner can be guaranteed. And the working state of the outer fan is controlled through the running data of the variable frequency air conditioner and the temperature of the mainboard module, so that the phenomenon that the temperature of the mainboard module is too high due to the change of the working state of the outer fan can be avoided, and further the variable frequency air conditioner is damaged.
Another objective of the present invention is to provide a heating control device of an inverter air conditioner to improve the above problem.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides an inverter air conditioner heating control device, is applied to inverter air conditioner, inverter air conditioner heating control device includes: the acquisition module is used for acquiring the operation data of the variable frequency air conditioner and the temperature of the main board module according to a preset time period when the heating mode is started and the detected variable frequency air conditioner is in a high-temperature working condition; and the control module is used for controlling the working state of the outer fan according to the collected running data and the temperature of the mainboard module so as to realize high-temperature protection.
Further, the operation data includes an outer ring temperature, an outer disc temperature and an inner disc temperature, and the control module is specifically configured to: and when the outer ring temperature is not lower than a preset first temperature threshold, the outer disc temperature is not lower than a preset second temperature threshold, the inner disc temperature is not lower than a preset third temperature threshold, and the temperature of the main board module is not higher than a preset fourth temperature threshold, controlling the outer fan to stop working.
Further, the control module is specifically configured to: after the external fan enters a stop working state, judging whether the collected running data or the temperature of the main board module meets a high-temperature protection exit condition; and if the high-temperature protection exit condition is met, controlling the external fan to restart to operate.
Compared with the prior art, the heating control device of the variable frequency air conditioner has the following advantages:
compared with the prior art, the heating control device of the inverter air conditioner and the heating control method of the inverter air conditioner have the same advantages, and are not repeated herein.
Another objective of the present invention is to provide an inverter air conditioner to improve the above problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an inverter air conditioner, the inverter air conditioner still includes: one or more controllers; the memory is used for storing one or more programs, and when the one or more programs are executed by the one or more controllers, the one or more controllers are enabled to realize the heating control method of the inverter air conditioner.
Compared with the prior art, the inverter air conditioner and the inverter air conditioner heating control method have the same advantages, and are not described again.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a block diagram of a circuit structure of an inverter air conditioner according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating steps of a heating control method of an inverter air conditioner according to an embodiment of the present invention;
fig. 3 is an application example diagram of a heating control method of an inverter air conditioner according to an embodiment of the invention;
fig. 4 is a schematic diagram of functional modules of a heating control device of an inverter air conditioner according to an embodiment of the present invention.
Description of reference numerals:
the system comprises a variable frequency air conditioner 1, a storage 2, a controller 3, an acquisition unit 4, an external fan 5, a variable frequency air conditioner heating control device 6, an acquisition module 7 and a control module 8.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Air conditioners in the related art heat under a high-temperature working condition, and in order to avoid the problem that the stability of a compressor is influenced due to overhigh pressure of an air conditioning system, a control strategy is adopted to reduce the pressure of the air conditioning system. For example, for a fixed-frequency air conditioner, the intermittent operation of an outer fan is generally adopted to reduce the heat absorption capacity of an outdoor heat exchanger, so that the pressure of an air conditioning system is reduced, a compressor is operated in a normal range, and the reliability of the compressor is ensured. For the inverter air conditioner, because the inverter controller of the inverter air conditioner also needs heat dissipation in the operation process, the scheme of intermittent operation of the external fan cannot be adopted, and the method of reducing the frequency is adopted to reduce the pressure of the air conditioning system. However, if the pressure is still too high after the minimum operating frequency is reduced, the air conditioner can only be stopped, which results in that the use effect and the reliability of the compressor cannot be simultaneously achieved.
In order to solve the above problem, embodiments of the present invention provide a heating control method and apparatus for an inverter air conditioner, and an inverter air conditioner.
In addition, the operation data mentioned in the embodiment of the present invention refers to data that may change with the operation of the inverter air conditioner or an environmental parameter in which the inverter air conditioner operates, and may represent or affect the operation condition of the inverter air conditioner. Preferably, the operation data may include an outer ring temperature, an outer disc temperature, an inner disc temperature, a compressor operation frequency, a first duration in which the outer fan is in an operation state, and a second duration in which the outer fan is in a shutdown state. The high temperature condition mentioned in the embodiments of the present invention refers to a working condition in which the ambient temperature exceeds a predetermined high temperature threshold. In the embodiment of the invention, the temperature of the main board module refers to the temperature of the outer surface of the variable frequency controller in the variable frequency air conditioner.
Further, the invention provides the variable frequency air conditioner 1, which can give consideration to both the use effect and the reliability of the compressor when heating is carried out under the high-temperature working condition. Fig. 1 is a block diagram of a circuit structure of an inverter air conditioner 1 according to an embodiment of the present invention.
This inverter air conditioner 1 includes: the system comprises a memory 2, a controller 3, a collection unit 4, an external fan 5 and a variable frequency air conditioner heating control device 6. The controller 3 is electrically connected with the memory 2, the acquisition unit 4 and the outer fan 5. The inverter air conditioner heating control device 6 comprises at least one of a software or firmware (firmware) stored in the memory 2.
The memory 2 may be configured to store software programs and units, such as program instruction units corresponding to the inverter air conditioner heating control apparatus 6 and the inverter air conditioner heating control method in the embodiment of the present invention, and the controller 3 executes various functional applications and data processing by operating the software programs and units of the inverter air conditioner heating control apparatus 6 and the inverter air conditioner heating control method stored in the memory 2, such as the inverter air conditioner heating control method provided in the embodiment of the present invention. The Memory 2 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an erasable Read-Only Memory (EPROM), an electrically erasable Read-Only Memory (EEPROM), and the like.
The above-mentioned acquisition unit 4 may comprise a plurality of temperature sensors. Among the plurality of temperature sensors, a temperature sensor arranged on the outer shell of the outdoor unit of the inverter air conditioner 1 is used for collecting the outer ring temperature corresponding to the inverter air conditioner 1; the temperature sensor is arranged on the outer side of a coil pipe of an evaporator of an outdoor unit of the variable frequency air conditioner 1 and is used for collecting the temperature of an outer coil corresponding to the variable frequency air conditioner 1; the temperature sensor is arranged on the outer side of a coil pipe of a condenser of an indoor unit of the variable frequency air conditioner 1 and is used for collecting the temperature of an inner coil corresponding to the variable frequency air conditioner 1; and the temperature sensor is arranged close to the controller 3 of the variable frequency air conditioner 1 and is used for collecting the temperature of the mainboard module corresponding to the variable frequency air conditioner 1.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
First embodiment
Referring to fig. 2, an embodiment of the invention provides a heating control method for an inverter air conditioner. The heating control method of the inverter air conditioner can be applied to the inverter air conditioner 1. As shown in fig. 2, the heating control method of the inverter air conditioner may include the following steps:
step S101, when a heating mode is started and the inverter air conditioner 1 is detected to be in a high-temperature working condition, collecting operation data of the inverter air conditioner 1 and the temperature of a mainboard module according to a preset time period.
In the embodiment of the invention, when the inverter air conditioner 1 starts the indoor heating mode, the detected working condition of the inverter air conditioner 1 is detected. Alternatively, the detected working condition of the inverter air conditioner 1 may be that the controller 3 obtains the ambient temperature information through a temperature sensor disposed on the outdoor unit housing, and determines whether the ambient temperature information exceeds a preset high temperature threshold. And when the environmental temperature information exceeds a preset high-temperature threshold value, judging that the working condition of the variable-frequency air conditioner 1 is a high-temperature working condition. When the variable frequency air conditioner 1 starts an indoor heating mode and detects that the working condition is a high-temperature working condition, the variable frequency air conditioner 1 is started to collect operation data and the temperature of the mainboard module according to a preset time period.
Alternatively, the controller 3 may obtain the outer ring temperature, the outer disk temperature, the inner disk temperature, and the main board module temperature through the acquisition unit 4 in each time period. Specifically, a temperature sensor arranged on an outer shell of an outdoor unit of the inverter air conditioner 1 acquires an outer ring temperature corresponding to the inverter air conditioner 1 in a current time period, and feeds the outer ring temperature back to the controller 3; a temperature sensor arranged on the outer side of a coil pipe of an evaporator of an outdoor unit of the variable frequency air conditioner 1 acquires the current temperature of an outer coil of the variable frequency air conditioner 1 and feeds the current temperature back to the controller 3; a temperature sensor arranged on the outer side of a coil pipe of a condenser of an indoor unit of the variable frequency air conditioner 1 acquires the current inner plate temperature of the variable frequency air conditioner 1 and feeds the current inner plate temperature back to the controller 3; the temperature sensor arranged adjacent to the variable frequency controller 3 of the variable frequency air conditioner 1 collects the temperature of the mainboard module corresponding to the current time period of the variable frequency air conditioner 1 and feeds the temperature back to the controller 3.
Further, the controller 3 may also obtain the current compressor operating frequency from the compressor, and the controller 3 may also obtain a first duration of its current duration in the operating state or a second duration of its current duration in the shutdown state from the outer fan 5.
And S102, controlling the working state of the outer fan 5 according to the collected running data and the temperature of the mainboard module so as to realize high-temperature protection.
In the embodiment of the present invention, whether the system pressure of the inverter air conditioner 1 can be reduced by turning off the external fan 5 in the current time period can be determined according to the collected operation data and the temperature of the main board module, so as to ensure the reliability of the compressor. The mode of controlling the outer fan 5 is adopted to replace the mode of reducing the pressure only by adjusting the frequency of the compressor in the prior art, so that the use effect of the variable frequency air conditioner 1 is not affected.
As an embodiment, the operation data according to the above may include an outer ring temperature, an outer disc temperature, and an inner disc temperature. That is, according to the collected operation data and the temperature of the main board module, the operating state of the outer fan 5 may be controlled such that the outer fan 5 is controlled to stop operating when the outer ring temperature is not lower than a preset first temperature threshold, the outer disc temperature is not lower than a preset second temperature threshold, the inner disc temperature is not lower than a preset third temperature threshold, and the temperature of the main board module is not higher than a preset fourth temperature threshold. Preferably, the first temperature threshold may be 12 ℃, the second temperature threshold may be 5 ℃, the third temperature threshold may be 55 ℃, and the fourth temperature threshold may be 65 ℃.
As another embodiment, the operation data according to the above may include an outer ring temperature, an outer disc temperature, an inner disc temperature, and a compressor operation frequency. That is, according to the collected operation data and the temperature of the main board module, the operating state of the outer fan 5 may be controlled in such a manner that the outer fan 5 is controlled to stop operating when the outer ring temperature is not lower than a preset first temperature threshold, the outer disk temperature is not lower than a preset second temperature threshold, the inner disk temperature is not lower than a preset third temperature threshold, the operating frequency of the compressor belongs to the lowest frequency of the compressor, and the temperature of the main board module is not higher than a preset fourth temperature threshold.
As another embodiment, the operation data according to the above may include an outer ring temperature, an outer disc temperature, an inner disc temperature, a compressor operation frequency, and a first duration of the operation state of the outer fan 5. That is, according to the collected operation data and the temperature of the main board module, the operating state of the outer fan 5 may be controlled in such a manner that the outer fan 5 is controlled to stop operating when the outer ring temperature is not lower than a preset first temperature threshold, the outer disk temperature is not lower than a preset second temperature threshold, the inner disk temperature is not lower than a preset third temperature threshold, the operating frequency of the compressor belongs to the lowest frequency of the compressor, the first duration exceeds a preset first time threshold, and the temperature of the main board module does not exceed a preset fourth temperature threshold. Preferably, the first time threshold may be 2 min.
Further, after the outer fan 5 enters the stop working state, according to the collected operating data and the temperature of the main board module, controlling the working state of the outer fan 5 may further include: and judging whether the collected operation data or the temperature of the mainboard module meets a high-temperature protection exit condition. And if the high-temperature protection exit condition is met, controlling the outer fan 5 to restart to operate. It should be noted that, after the external air blower 5 enters the stop working state, the operation data acquired in each time period includes the second duration of the external air blower 5 being in the stop state, whereas, when the external air blower 5 is in normal use, the operation data acquired in each time period includes the first duration of the external air blower 5 being in the operation state.
Optionally, the high-temperature protection exit condition includes any one of:
1. the second duration is not less than a preset second time threshold.
2. The temperature of the inner disc does not exceed a preset fifth temperature threshold value.
3. And the temperature of the outer disc does not exceed a preset sixth temperature threshold value.
4. And the temperature of the mainboard module exceeds a preset seventh temperature threshold value.
Wherein the fifth temperature threshold is less than the third temperature threshold, the sixth temperature threshold is less than the second temperature threshold, and the seventh temperature threshold is greater than the fourth temperature threshold. Preferably, the second time threshold is 3 min. The fifth temperature threshold is 48 ℃, the sixth temperature threshold is-1 ℃, and the seventh temperature threshold is 70 ℃.
To further explain the embodiment of the present invention, the heating control method of the inverter air conditioner is described in detail by using an application example shown in fig. 3, specifically:
and S1, heating is started under the high-temperature working condition.
S2, the outer fan 5 maintains a normal operation state.
And S3, acquiring the outer ring temperature, the outer disc temperature, the inner disc temperature, the main board module temperature, the compressor running frequency, the first duration and the second duration.
S4, judging the outer ring temperature (T) in each time periodOuter ring) Is it not lower than 12 ℃? If so, the flow advances to step S5; if not, the flow advances to step S2.
S5, judging the temperature of the outer disk (T)Outer plate) Is it not lower than 5 ℃? If so, the flow advances to step S6; if not, the flow advances to step S2.
S6, judging the inner disc temperature (T)Inner disc) Is not lower than 55 ℃? If so, the flow advances to step S7; if not, the flow advances to step S2.
S7, judging the temperature (T) of the mainboard moduleModule) Is it not more than 65 ℃? If so, the flow advances to step S8; if not, the flow advances to step S2.
S8, judging the first duration (t)1) Is not less than 2 min? If so, the flow advances to step S9; if not, the flow advances to step S2.
S9, determine whether the compressor operating frequency belongs to the lowest frequency of the compressor? If so, the flow advances to step S10; if not, the flow advances to step S2.
And S10, controlling the external fan 5 to stop running.
S11, second duration (t)2) Is not less than 3 min? If so, the flow advances to step S2; if not, the flow advances to step S12.
S12, judging TInner discIs it not more than 48 ℃? If so, the flow advances to step S2; if not, the flow advances to step S13.
S13, judging TOuter plateIs it not more than-1 ℃? If so, the flow advances to step S2; if not, the flow advances to step S14.
S14, judging TModuleIs it above 70 ℃? If so, the flow advances to step S2; if not, the flow advances to step S10.
Second embodiment
Referring to fig. 4, an embodiment of the present invention provides a heating control device 6 of an inverter air conditioner. The inverter air conditioner heating control device 6 is applied to the inverter air conditioner 1. As shown in fig. 4, the inverter air conditioner heating control device 6 may include: an acquisition module 7 and a control module 8.
And the acquisition module 7 is used for acquiring the operation data of the inverter air conditioner 1 and the temperature of the mainboard module according to a preset time period when the heating mode is started and the inverter air conditioner 1 is detected to be in a high-temperature working condition.
And the control module 8 is used for controlling the working state of the outer fan 5 according to the collected running data and the temperature of the mainboard module so as to realize high-temperature protection.
Preferably, the control module 8 is specifically configured to control the outer fan 5 to stop working when the outer ring temperature is not lower than a preset first temperature threshold, the outer disc temperature is not lower than a preset second temperature threshold, the inner disc temperature is not lower than a preset third temperature threshold, and the main board module temperature is not higher than a preset fourth temperature threshold.
Further, the control module 8 may be specifically configured to determine whether the collected operation data or the temperature of the main board module meets a high-temperature protection exit condition after the external air blower 5 enters a stop working state; and if the high-temperature protection exit condition is met, controlling the outer fan 5 to restart to operate.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the heating control device 6 of the inverter air conditioner described above may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
In summary, the embodiments of the present invention provide a heating control method and device for an inverter air conditioner, and an inverter air conditioner. The heating control method and device of the inverter air conditioner can be applied to the inverter air conditioner. The heating control method of the variable frequency air conditioner comprises the following steps: when a heating mode is started and the detected variable frequency air conditioner is in a high-temperature working condition, acquiring the operation data of the variable frequency air conditioner and the temperature of a mainboard module according to a preset time period; and controlling the working state of the outer fan according to the collected operation data and the temperature of the main board module so as to realize high-temperature protection. Namely, the pressure of the system is reduced by adjusting the working state of the outer fan, the frequency of the air conditioner is adjusted downward instead, the reliability of the compressor is ensured, and the using effect of the variable frequency air conditioner can be guaranteed. And the working state of the outer fan is controlled through the running data of the variable frequency air conditioner and the temperature of the mainboard module, so that the phenomenon that the temperature of the mainboard module is too high due to the change of the working state of the outer fan can be avoided, and further the variable frequency air conditioner is damaged.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The heating control method of the inverter air conditioner is applied to the inverter air conditioner (1), and is characterized by comprising the following steps:
when a heating mode is started and the detected variable frequency air conditioner (1) is in a high-temperature working condition, acquiring operation data of the variable frequency air conditioner (1) and the temperature of a main board module according to a preset time period; wherein the operation data comprises an outer ring temperature, an outer disc temperature and an inner disc temperature;
controlling the working state of the outer fan (5) according to the collected operation data and the temperature of the mainboard module so as to realize high-temperature protection; when the outer ring temperature is not lower than a preset first temperature threshold, the outer disc temperature is not lower than a preset second temperature threshold, the inner disc temperature is not lower than a preset third temperature threshold, and the temperature of the main board module is not higher than a preset fourth temperature threshold, the outer fan (5) is controlled to stop working.
2. The heating control method of the inverter air conditioner according to claim 1, wherein the operation data includes an outer ring temperature, an outer disc temperature, an inner disc temperature and a compressor operation frequency, and the step of controlling the working state of the outer fan (5) according to the collected operation data and the temperature of the main board module includes:
and when the outer ring temperature is not lower than a preset first temperature threshold, the outer disc temperature is not lower than a preset second temperature threshold, the inner disc temperature is not lower than a preset third temperature threshold, the compressor running frequency belongs to the lowest frequency of the compressor, and the temperature of the main board module is not higher than a preset fourth temperature threshold, controlling the outer fan (5) to stop working.
3. The heating control method of the inverter air conditioner according to claim 1, wherein the operation data includes an outer ring temperature, an outer disc temperature, an inner disc temperature, a compressor operation frequency and a first duration of the operation state of the outer fan (5), and the step of controlling the operation state of the outer fan (5) according to the collected operation data and the temperature of the main board module includes:
and when the outer ring temperature is not lower than a preset first temperature threshold, the outer disc temperature is not lower than a preset second temperature threshold, the inner disc temperature is not lower than a preset third temperature threshold, the compressor running frequency belongs to the lowest frequency of the compressor, the first duration exceeds a preset first time threshold, and the temperature of the main board module does not exceed a preset fourth temperature threshold, controlling the outer fan (5) to stop working.
4. The heating control method of the inverter air conditioner according to any one of claims 1-3, wherein the step of controlling the working state of the external fan (5) according to the collected operation data and the temperature of the main board module further comprises:
after the outer fan (5) enters a stop working state, judging whether the collected running data or the temperature of the mainboard module meets a high-temperature protection exit condition;
and if the high-temperature protection exit condition is met, controlling the outer fan (5) to restart to operate.
5. The heating control method of the inverter air conditioner according to claim 4, wherein after the external fan (5) enters the shutdown state, the collected operation data further includes a second duration of the shutdown state of the external fan (5), and the high temperature protection exit condition includes any one of:
the second duration is not less than a preset second time threshold;
the temperature of the inner disc does not exceed a preset fifth temperature threshold;
the temperature of the outer disc does not exceed a preset sixth temperature threshold; or
The temperature of the mainboard module exceeds a preset seventh temperature threshold; wherein the fifth temperature threshold is less than the third temperature threshold, the sixth temperature threshold is less than the second temperature threshold, and the seventh temperature threshold is greater than the fourth temperature threshold.
6. The utility model provides an inverter air conditioner heats controlling means, is applied to inverter air conditioner (1), its characterized in that, inverter air conditioner heats controlling means (6) and includes:
the acquisition module (7) is used for acquiring the operation data of the variable frequency air conditioner (1) and the temperature of the mainboard module according to a preset time period when the heating mode is started and the detected variable frequency air conditioner (1) is in a high-temperature working condition; wherein the operation data comprises an outer ring temperature, an outer disc temperature and an inner disc temperature;
the control module (8) is used for controlling the working state of the outer fan (5) according to the collected operation data and the temperature of the mainboard module so as to realize high-temperature protection;
the control module (8) is specifically configured to:
and when the outer ring temperature is not lower than a preset first temperature threshold, the outer disc temperature is not lower than a preset second temperature threshold, the inner disc temperature is not lower than a preset third temperature threshold, and the temperature of the main board module is not higher than a preset fourth temperature threshold, controlling the outer fan (5) to stop working.
7. The heating control device of an inverter air conditioner according to claim 6, wherein the control module (8) is specifically configured to:
after the outer fan (5) enters a stop working state, judging whether the collected running data or the temperature of the mainboard module meets a high-temperature protection exit condition;
and if the high-temperature protection exit condition is met, controlling the outer fan (5) to restart to operate.
8. The inverter air conditioner is characterized in that the inverter air conditioner (1) further comprises:
one or more controllers (3);
memory (2) for storing one or more programs which, when executed by the one or more controllers (3), cause the one or more controllers (3) to carry out the method according to any one of claims 1-5.
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| CN201810785259.XA CN108692433B (en) | 2018-07-17 | 2018-07-17 | Heating control method and device for variable frequency air conditioner and variable frequency air conditioner |
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| CN201810785259.XA CN108692433B (en) | 2018-07-17 | 2018-07-17 | Heating control method and device for variable frequency air conditioner and variable frequency air conditioner |
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| CN111442491B (en) * | 2020-04-10 | 2022-04-01 | 广东美的制冷设备有限公司 | Air conditioner, control method and control device thereof, and computer readable storage medium |
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| CN105299825B (en) * | 2015-06-30 | 2018-07-10 | 广东美的暖通设备有限公司 | The limit frequency guard method of air-conditioning |
| CN105402961A (en) * | 2015-12-21 | 2016-03-16 | 美的集团武汉制冷设备有限公司 | Air conditioner and control method thereof |
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