CN113834179B - Control method and device of fixed-frequency air conditioner, storage medium and air conditioner - Google Patents
Control method and device of fixed-frequency air conditioner, storage medium and air conditioner Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention provides a control method and a control device of a fixed-frequency air conditioner, a storage medium and an air conditioner, wherein the control method of the fixed-frequency air conditioner comprises the following detection steps: s1: when the fixed-frequency air conditioner is started for heating, the temperature T of the indoor coil pipe is detected and obtained S (ii) a S2: judging whether the room load is overlarge or not according to the temperature rising rate of the indoor coil pipe and the wind level information; s3: if the load of the room is too large, reducing the high-temperature-resistant parameter value for high-temperature-resistant protection; otherwise, performing high-temperature-resistant protection according to preset high-temperature-resistant parameters. According to the control method and device of the fixed-frequency air conditioner, the storage medium and the air conditioner, the action of reducing the high-temperature-resistant parameter is added by monitoring the temperature rise rate of the inner coil pipe when the load of a room is overlarge, the starting and stopping of the outer fan are effectively controlled through the high-temperature-resistant protection by selecting the set rotating speed and the high-temperature-resistant protection parameter of the fan in the air conditioner, the shutdown of the after-sale fixed-frequency air conditioner caused by overlarge load of a heating start-up machine is avoided, the after-sale data are improved, and the product competitiveness is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and device of a fixed-frequency air conditioner, a storage medium and the air conditioner.
Background
At present, the price of a fixed-frequency air conditioner is moderate compared with that of a variable-frequency air conditioner in the market, and the price of the product is high due to the influence of national energy-saving subsidies, so that the fixed-frequency air conditioner has good attention among consumers. The fixed-frequency air conditioner has simpler relative functions, and if the air conditioner is purchased to only meet the daily refrigerating and heating requirements, the fixed-frequency air conditioner becomes the first choice due to the simple design and the economical selling price. In addition, with the development and application of fixed-frequency air conditioner manufacturers on various technologies in recent years, the products are generally more humanized, the use is more diversified, and the personalized requirements of more consumers can be met.
However, when the indoor and outdoor working conditions of the fixed-frequency air conditioner in the air conditioner market are slightly high, the fixed-frequency air conditioner is started up in a heating operation mode, the temperature of the inner coil pipe rises very quickly due to excessive heat absorption of the condenser of the outer unit, although the inner unit of the air conditioner has high-temperature protection, a high-temperature protection value is set, and when the temperature of the inner coil reaches the high-temperature protection value, the outer fan is stopped, the temperature of the inner coil is reduced, so that the frequent shutdown condition of the inner coil protection is avoided, and the system is stable and reliable in operation.
But the temperature of the tube can not be prevented from continuously rising during the period of starting up, and finally, the shutdown phenomenon occurs, so that the use perception and the comfort of a user are influenced.
Disclosure of Invention
In view of the above, the present invention is directed to a method and an apparatus for controlling a fixed-frequency air conditioner, a storage medium, and an air conditioner, so as to solve the technical problem in the prior art that when the inside and outside temperatures are high, the inner coil is triggered to prevent high temperature protection, but the inner coil cannot be prevented from continuously rising to cause shutdown.
In order to solve the above problems, a first object of the present invention is to provide a method for controlling a constant frequency air conditioner, comprising the steps of:
s1: when the fixed-frequency air conditioner is started for heating, the temperature T of the indoor coil pipe is detected and obtained S ；
S2: judging whether the room is overloaded according to the temperature rising rate of the indoor coil pipe and the wind gear information;
s3: if the load of the room is too large, the high temperature prevention parameter value is lowered to perform high temperature prevention protection; otherwise, performing high-temperature prevention protection according to preset high-temperature prevention parameters.
This application is through monitoring interior coil pipe intensification rate, select fan setting rotational speed in the air conditioner and prevent high temperature protection parameter, effectively open and stop through preventing that the outer fan of high temperature protection control is opened, ensure that the air conditioner internal unit can not be because after the start, outer machine heat absorption is too much, the unable heat dissipation in time of internal unit, lead to the inner disc temperature extremely fast rising overshoot to stop, prevent the action of high temperature parameter through the increase reduction, when the room load is too big, prevent the high temperature protection parameter value through reducing, let the air conditioner get into in advance and prevent high temperature protection, effectively promote the reliability of the start operation that heats.
Further, step S2 includes the steps of:
s21: judging whether | T S+M -T S I/M is less than or equal to A; if not, entering S22, if so, performing high-temperature prevention protection according to preset high-temperature prevention protection parameters;
s22: judging whether the rotating speed V of the inner fan is more than or equal to V High wind shield (ii) a If so, reducing the high-temperature protection parameter value for high-temperature protection; if not, entering S23;
s23: adjusting the rotating speed of the inner fan to a high wind gear, and judging whether the absolute value of T is greater than or equal to S+C+N -T S+C I/N is less than or equal to A; if not, adjusting the high temperature prevention parameter value to perform high temperature prevention protection; if so, performing high-temperature prevention protection according to preset high-temperature prevention parameters;
wherein, T S The temperature of the inner coil after S seconds for the compressor start-up; t is S+M For the temperature of the inner coil, T, after S + M seconds of compressor start-up S+C For the temperature of the inner coil, T, after S + C seconds of compressor start-up S+C+N For the internal coil temperature after S + C + N seconds of compressor startup, A, C, M, N is a preset empirical parameter.
The setting discloses a logic program for judging whether the room is overloaded, the logic program is simple and efficient, the load of the room is judged through the heating rate of the inner disc, so that high-temperature-resistant parameters and the rotating speed of the inner fan are flexibly controlled, the logic can stop the shutdown of the after-sale fixed-frequency air conditioner due to the fact that the heating starting is carried out due to the overload, the after-sale data can be improved, and the product competitiveness can be improved.
Further, step S3 includes the steps of:
s31, reducing the high-temperature-resistant parameter, wherein the high-temperature-resistant parameter F = B-D, protecting the inner machine high-temperature-resistant parameter according to the adjusted high-temperature-resistant parameter, and stopping the outer fan;
s32: the high-temperature-resistant parameter F = B, the inner machine high-temperature-resistant parameter is protected according to the set high-temperature-resistant parameter, and the outer fan stops rotating;
wherein, B is a high temperature protection parameter preset by the internal machine, and D is a preset experience parameter.
This setting is through increasing the action that reduces to prevent the high temperature parameter, effectively stops through preventing that high temperature protects the outer fan of control and open.
Further, in step S21, M =1; in step S23, N =1.
This setting has improved the accurate nature of control inner room inner disc temperature variation, guarantees to prevent the reliability that high temperature protection controlled is prevented to the high temperature parameter through reducing.
Further, in step S23, the rotation speed of the inner fan is adjusted to a high wind gear, the temperature rise rate of the inner disc is detected within E seconds continuously, and | T is confirmed for E times S+C+1 -T S+C If the I/1 is less than or equal to A, performing high-temperature prevention protection according to preset internal machine high-temperature prevention parameters.
Furthermore, the value of E is any positive integer between 5 and 20; the value range of the reference value A of the temperature rise rate of the inner disc is 1-2; the value range of the high temperature protection parameter B preset by the internal machine is 40-50 ℃; the fixed constant D is set according to the configuration of the air conditioner, and the value range of the fixed constant D is 5-10 ℃.
The setting discloses the value range of the empirical parameter A, B, D of the control method applied to the fixed-frequency air conditioner, the starting and stopping of the outer fan can be accurately and reliably controlled through high-temperature prevention protection, the air conditioner can also be heated and operated even under the condition that the inside and outside temperatures are high, and the comfort level of a user is guaranteed.
The second objective of the present invention is to provide a control device for a fixed-frequency air conditioner, which determines whether the room load is excessive by detecting the temperature rise rate of the indoor coil and the wind level information, and when the room load is excessive, the air conditioner enters the high temperature protection in advance by reducing the high temperature protection parameter value, thereby effectively improving the reliability of the heating startup operation.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a control device of a fixed frequency air conditioner includes:
a detection unit capable of detecting the indoor coil temperature T according to the control instruction S And the rotating speed V of the fan;
the judging unit can judge whether the temperature rising rate of the inner disc is smaller than A and whether the rotating speed V of the fan is in a high windshield or not according to the control instruction;
and the control unit can send a detection control instruction to the detection unit and feed detection information back to the judgment unit for judgment, when the temperature rise rate of the inner disc is greater than A and the rotating speed of the fan is in a high windshield, the high-temperature-resistant parameter is reduced, the high-temperature-resistant parameter of the inner machine is protected according to the adjusted high-temperature-resistant parameter, and the outer fan stops rotating.
The control device of the fixed-frequency air conditioner is used for implementing the control method of the fixed-frequency air conditioner, so that the air conditioner can be heated and operated under the condition that the inside and outside temperatures are high, and the comfort level of a user is ensured.
A third object of the present invention is to provide a storage medium storing computer-readable program instructions which, when executed by a processor, implement the steps of the air conditioner control method provided as described above.
The invention also discloses an air conditioner, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium is used for storing a computer program, and when the computer program is read and run by the processor, the processor can execute the control method of the fixed-frequency air conditioner.
Compared with the prior art, the air conditioner, the storage medium and the control method of the fixed-frequency air conditioner have the same advantages, and are not repeated herein.
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 schematic view of an air conditioner operation flow of a control method of a fixed-frequency air conditioner according to an embodiment of the present invention.
Detailed Description
In order to make the technical means, objectives and functions of the present invention easy to understand, embodiments of the present invention will be described in detail with reference to the specific drawings.
Example 1
As shown in fig. 1, the invention discloses a control method of a fixed-frequency air conditioner, which comprises the following detection steps:
s1: when the fixed-frequency air conditioner is started up in a heating mode, the temperature T of the indoor coil is detected and acquired S ；
S2: judging whether the room is overloaded according to the temperature rising rate of the indoor coil pipe and the wind gear information;
s3: if the load of the room is too large, the high temperature prevention parameter value is lowered to perform high temperature prevention protection; otherwise, performing high-temperature prevention protection according to preset high-temperature prevention parameters.
The application discloses a control method of a fixed-frequency air conditioner, the temperature of an inner disc is detected through an inner disc temperature sensing bulb, the temperature rising rate of the inner disc is used as a reference basis of room load, when the temperature rising rate of the inner disc is smaller than a preset value, the room load is considered to be smaller, and no action is required to be adjusted; when the rising rate of the inner coil pipe is higher than the preset value, the room load is considered to be large, at the moment, if the indoor air conditioner is the highest windshield, the room load is considered to be extremely high, the air conditioner is stopped as long as the air conditioner is started, so that the high-temperature protection is directly carried out according to the reduced high-temperature protection parameter value, the air conditioner is enabled to enter the high-temperature protection in advance, and the air conditioner is ensured not to be stopped.
This application is through coil pipe rate of rising temperature in the control, and the fan sets for the rotational speed in the selection air conditioner and prevents the high temperature protection parameter, and effective outer fan of preventing high temperature protection control is opened and is stopped, guarantees that the air conditioner inner unit can not because after the start, outer machine heat absorption is too much, and the unable heat dissipation in time of inner unit leads to inner disc temperature extremely fast rising to overshoot to stop the machine.
As a preferred example of the present invention, the step S2 includes the steps of:
s21: judging whether | T S+M -T S I/M is less than or equal to A; if not, entering S22, if so, performing high-temperature prevention protection according to preset high-temperature prevention protection parameters;
s22: judging whether the rotating speed V of the inner fan is more than or equal to V High wind shield (ii) a If so, reducing the high-temperature protection parameter value for high-temperature protection; if not, entering S23;
s23: adjusting the rotating speed of the inner fan to a high wind gear, and judging whether the absolute value of T is greater than or equal to S+C+N -T S+C I/N is less than or equal to A; if not, adjusting the high temperature prevention parameter value to perform high temperature prevention protection; if so, performing high-temperature prevention protection according to preset high-temperature prevention parameters;
wherein, T S The temperature of the inner coil pipe is S seconds after the compressor is started; t is S+M For the temperature of the inner coil, T, after S + M seconds of compressor start-up S+C For the temperature of the inner coil, T, after S + C seconds of compressor start-up S+C+N For the internal coil temperature after S + C + N seconds of compressor start-up, A, C, M, N is a preset empirical parameter.
The logic program for judging whether the room is overloaded is simple and efficient, and the load of the room is judged according to the temperature rise rate of the inner disc, so that the high-temperature-resistant parameters and the rotating speed of the inner fan are flexibly controlled, the shutdown of the after-sale fixed-frequency air conditioner due to the fact that the heating starting is carried out due to the overload can be avoided through the logic, the after-sale data can be improved, and the product competitiveness can be improved.
As a preferred example of the present invention, step S3 includes the steps of:
s31: adjusting down the high temperature prevention parameter, wherein the high temperature prevention parameter F = B-D, the inner machine high temperature prevention parameter is protected according to the adjusted high temperature prevention parameter, and the outer fan stops rotating;
s32: the high-temperature-resistant parameter F = B, the inner machine high-temperature-resistant parameter is protected according to the set high-temperature-resistant parameter, and the outer fan stops rotating;
wherein, B is a high temperature protection parameter preset by the internal machine, and D is a preset experience parameter.
Compare with prior art only adjust the windscreen, under the all very high circumstances of inside and outside temperature, interior coil pipe has triggered and has prevented high temperature protection, nevertheless still can not prevent interior coil pipe and continue to rise and lead to shutting down, and this application reduces the action of preventing high temperature parameter through increasing, and when the room load was too big, through reducing and prevent high temperature protection parameter value, lets the air conditioner get into in advance and prevent high temperature protection, effectively promotes the reliability of the operation of the start-up of heating.
Specifically, the invention discloses a control method of a fixed-frequency air conditioner, which comprises the following detection steps:
s1: when the fixed-frequency air conditioner is started up in a heating mode, the temperature T of the indoor coil is detected and acquired S ；
S21: judging whether | T S+M -T S I/M is less than or equal to A; if not, the process goes to S22, and if yes, the process goes to S32;
s22: judging whether the rotating speed V of the inner fan is more than or equal to V High wind shield (ii) a If yes, entering S31; if not, entering S23;
s23: adjusting the rotating speed of the inner fan to a high wind gear, and judging whether the absolute value of T is greater than or equal to S+C+N -T S+C I/N is less than or equal to A; if not, entering S31; if yes, entering S32;
s31, reducing the high-temperature-resistant parameter, wherein the high-temperature-resistant parameter F = B-D, protecting the inner machine high-temperature-resistant parameter according to the adjusted high-temperature-resistant parameter, and stopping the outer fan;
s32: the high-temperature-resistant parameter F = B, the inner machine high-temperature-resistant parameter is protected according to the set high-temperature-resistant parameter, and the outer fan stops rotating;
in the step S1, the method for controlling the fixed-frequency air conditioner firstly determines that the air conditioner is in a heating starting state, determines that the user demand is heating, and detects the temperature T of the indoor coil pipe of the U pipe in which the U pipe is positioned by the inner-disc temperature sensing bulb when the heating starting signal of the air conditioner is acquired S . In step S2, the temperature T of the inner coil pipe is detected S seconds after the compressor is started s If | T S+M -T S If | M is less than or equal to A, the load of the inner and outer rings where the air conditioner is located is considered to be in a controllable rangeIn the enclosure, the high-temperature-resistant parameters of the internal machine are protected according to set parameters, namely, if T is obtained after the compressor is started for s seconds S+M -T S If I/M is less than or equal to A, executing S6, and performing protection operation on the internal machine high-temperature-prevention parameter in the high-temperature-prevention protection mode according to the set parameter, otherwise, indicating that the temperature rising rate of the internal disc is too high, and the load of the internal ring and the external ring of the air conditioner is large. At this time, step S3 is executed, the rotating speed of the inner fan is firstly calibrated, whether the heat is not dissipated because the rotating speed of the inner fan is set to be lower or not is judged, namely if the rotating speed V of the inner fan is larger than or equal to V High wind shield If the inner fan is the highest windshield, the load of the room is considered to be extremely high at the moment, and the air conditioner is stopped as long as the air conditioner is started, so that the high-temperature-prevention parameter is executed in F = B-D by executing the step of reducing the high-temperature-prevention parameter in the step S5, the high-temperature-prevention parameter of the inner fan in the high-temperature-prevention protection mode is subjected to high-temperature-prevention protection according to the reduced parameter, the air conditioner enters the high-temperature-prevention protection in advance, the outer fan is stopped in advance, and the abnormal stop of the inner fan caused by the high load is prevented; if the rotating speed V of the inner fan is less than V in the step S3 High wind shield At the moment, the operation wind level of the inner fan is smaller than the high wind level, the wind level of the inner fan is increased to the high wind level, the temperature rising rate of the inner disc is reduced, and the temperature rising rate of the inner disc is detected within N seconds, such as T s+n -T S A/N is less than or equal to A, namely the wind gear is lifted to discharge a large amount of loads, the temperature rise rate of the inner disc is reduced, the high-temperature prevention parameter of the inner machine is protected against high temperature according to the set parameter F = B, otherwise, the load of the inner ring and the outer ring where the air conditioner is located is overlarge, and even if the rotating speed of the inner fan is lifted, the temperature rise rate cannot be reduced to the set value, the high-temperature prevention parameter is executed according to F = B-D, the air conditioner is enabled to enter the high-temperature prevention protection in advance, the outer fan is shut down in advance, and abnormal shut down of the inner machine caused by the fact that the load is too high is prevented.
In the prior art, a fixed high-temperature-resistant parameter is set, only a windshield is adjusted when the air conditioner operates in a high-temperature-resistant mode, and the inner coil pipe triggers high-temperature-resistant protection but cannot be prevented from continuously rising to cause shutdown under the condition that the temperatures of the inner side and the outer side are high. When the rising rate of the inner coil is higher than a preset value, the room load is considered to be large, at the moment, the rotating speed of the inner fan is firstly checked, whether the heat cannot be dissipated because the rotating speed of the inner fan is set to be low or not is judged, if the rotating speed is low, the wind speed is increased, then the rising rate of the inner coil is checked, and the room load is judged; if the air conditioner is the highest windshield, the load of the room is considered to be extremely high at the moment, and the air conditioner has the risk of stopping the air conditioner as long as the air conditioner is started, so that the air conditioner can enter high-temperature protection in advance by directly reducing the high-temperature protection parameter value, and the air conditioner is ensured not to stop the air conditioner.
According to the control method of the fixed-frequency air conditioner, the indoor and outdoor loads are calculated by monitoring the temperature change of the inner chamber inner disc, the operation wind shield of the inner fan and the parameters of high-temperature protection are adjusted in time, it is ensured that the inner fan of the air conditioner cannot be stopped by overshooting due to the fact that the outer unit absorbs too much heat and cannot radiate heat in time after the air conditioner is started, the temperature of the inner disc rises at the highest speed, and the outer fan is effectively controlled to be started and stopped by the high-temperature protection.
As a preferred example of the present invention, in step S21, M =1. That is, the judgment condition in S2 is | T S+1 -T S I/1 is less than or equal to A. The arrangement is such that the indoor coil temperature T of any one second is passed S And (4) judging whether the load of the inner ring and the outer ring where the air conditioner is positioned is in a controllable range or not according to the change rate, so that the reliability of protection by reducing the high-temperature-prevention parameter is achieved.
Similarly, as a preferred example of the present invention, in step S23, N =1. That is, the judgment condition in S4 is | T S+C+1 -T S+C |/1≤A。
As a preferred example of the present invention, in step S23, the rotation speed of the inner fan is adjusted to a high wind gear, the temperature rising rate of the inner disc is detected for E seconds continuously, and | T is confirmed for E times S+C+1 -T S+C All the I/1 is less than or equal to A, if yes, high temperature protection is carried out according to preset internal machine high temperature protection parameters, as an example of the invention, E can be any positive integer between 5 and 20, and preferably, E =10.
As a preferred example of the present invention, the reference value A of the inner disc heating rate ranges from 1 to 2.
As a preferred example of the invention, the value range of the high-temperature-resistant protection parameter B preset by the internal machine is 40-50 ℃.
As a preferred example of the present invention, the fixed constant D is set according to the configuration of the air conditioner, and the value range thereof is 5 ℃ to 10 ℃.
The setting discloses the value range of the empirical parameter A, B, D of the control method applied to the fixed-frequency air conditioner, the starting and stopping of the outer fan can be accurately and reliably controlled through high-temperature prevention protection, the air conditioner can also be heated and operated even under the condition that the inside and outside temperatures are high, and the comfort level of a user is guaranteed.
Example 2
As a preferred example of the present invention, the present invention further discloses a control device for a fixed-frequency air conditioner, comprising:
a detection unit capable of detecting the indoor coil temperature T according to the control instruction S And the rotating speed V of the fan;
the judging unit can judge whether the temperature rising rate of the inner disc is smaller than A and whether the rotating speed V of the fan is in a high windshield or not according to the control instruction;
and the control unit can send a detection instruction to the detection unit and feed detection information back to the judgment unit for judgment, when the temperature rise rate of the inner disc is greater than A and the rotating speed of the fan is in a high windshield, the high-temperature-prevention parameter is reduced, the high-temperature-prevention parameter of the inner fan is protected according to the adjusted high-temperature-prevention parameter, and the outer fan stops rotating.
The control device of the fixed-frequency air conditioner is used for implementing the control method of the fixed-frequency air conditioner in the embodiment 1, so that the air conditioner can be heated and operated under the condition that the inside and outside temperatures are high, and the comfort level of a user is guaranteed.
Example 3
As a preferred example of the present invention, there is also provided a storage medium storing computer-readable program instructions that, when executed by a processor, implement the steps of the air conditioner control method as provided in embodiment 1.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Example 4
As a preferred example of the present invention, the present invention also provides an air conditioner comprising a computer-readable storage medium storing a computer program and a processor, wherein when the computer program is read and executed by the processor, the controller is capable of executing the control method of the fixed-frequency air conditioner described in embodiment 1.
The air conditioner in this embodiment includes a controller, a plurality of sensors with different functions, and a timer, the controller has at least one software function module which can be stored in the controller in the form of software or firmware or solidified in an Operating System (OS) of a server, and the control unit executes a control program according to data collected by the sensors.
The controller may be an integrated circuit chip having signal processing capabilities. The controller may be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor. The controller may also be any conventional processor or the like.
In this embodiment, the controller is configured to execute an executable module stored therein, where the executable module includes a control program for protecting the air conditioner from high temperature, and the control method of the fixed-frequency air conditioner provided in embodiment 1 can be implemented according to the control program.
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 (7)
1. A control method of a fixed-frequency air conditioner is characterized by comprising the following detection steps:
s1: when the fixed-frequency air conditioner is started for heating, the temperature T of the indoor coil pipe is detected and obtained S ；
S2: judging whether the room is overloaded according to the temperature rising rate of the indoor coil pipe and the wind gear information;
wherein, step S2 includes the following steps:
s21: judging whether | T S+M -T S I/M is less than or equal to A; if not, entering S22, if so, performing high-temperature prevention protection according to preset high-temperature prevention protection parameters;
s22: judging whether the rotating speed V of the inner fan is more than or equal to V High wind shield (ii) a If so, reducing the high-temperature protection parameter value for high-temperature protection; if not, entering S23;
s23: adjusting the rotating speed of the inner fan to a high wind gear, and judging whether the absolute value of T is greater than or equal to S+C+N -T S+C I/N is less than or equal to A; if not, reducing the high-temperature-resistant parameter value for high-temperature-resistant protection; if yes, performing high-temperature prevention protection according to preset high-temperature prevention parameters;
wherein, T S The temperature of the inner coil pipe is S seconds after the compressor is started; t is S+M For the temperature of the inner coil, T, after S + M seconds of compressor start-up S+C For the temperature of the inner coil, T, after S + C seconds of compressor start-up S+C+N For compressors starting S + C + N seconds laterThe temperature of the inner coil pipe is A, C, M, N which is a preset empirical parameter;
s3: if the load of the room is too large, the high temperature prevention parameter value is lowered to perform high temperature prevention protection; otherwise, performing high-temperature prevention protection according to preset high-temperature prevention parameters;
the step S3 includes the steps of:
s31, reducing the high-temperature-resistant parameter, wherein the high-temperature-resistant parameter F = B-D, protecting the inner machine high-temperature-resistant parameter according to the adjusted high-temperature-resistant parameter, and stopping the outer fan;
s32: the high-temperature-resistant parameter F = B, the inner machine high-temperature-resistant parameter is protected according to the set high-temperature-resistant parameter, and the outer fan stops rotating;
wherein, B is a high temperature protection parameter preset by the internal machine, and D is a preset experience parameter.
2. The control method of a fixed-frequency air conditioner according to claim 1, wherein in step S21, M =1; in step S23, N =1.
3. The method as claimed in claim 2, wherein the method comprises adjusting the rotation speed of the inner fan to a high wind level, detecting the temperature rising rate of the inner panel for E seconds, and determining the | T times S+C+1 -T S+C And if the value is less than or equal to 1 and A, performing high-temperature-resistant protection according to preset high-temperature-resistant parameters of the internal machine.
4. The method for controlling the fixed-frequency air conditioner according to claim 3, wherein the value of E is any positive integer between 5 and 20; the value range of the inner disc heating rate reference value A is 1~2; the value range of the high-temperature-resistant protection parameter B preset by the internal machine is 40-50 ℃; the fixed constant D is set according to the configuration of the air conditioner, and the value range of the fixed constant D is 5-10 ℃.
5. A control apparatus for a fixed-frequency air conditioner, characterized by performing the steps of implementing the control method for the fixed-frequency air conditioner according to any one of claims 1~4, comprising:
a detection unit capable of detecting the indoor coil according to the control commandTemperature T S And the rotating speed V of the fan;
the judging unit can judge whether the temperature rising rate of the inner disc is smaller than A and whether the rotating speed V of the fan is in a high windshield or not according to the control instruction;
and the control unit can send a detection control instruction to the detection unit and feed detection information back to the judgment unit for judgment, when the temperature rise rate of the inner disc is greater than A and the rotating speed of the fan is in a high windshield, the high-temperature-resistant parameter is reduced, the high-temperature-resistant parameter of the inner machine is protected according to the adjusted high-temperature-resistant parameter, and the outer fan stops rotating.
6. A storage medium storing computer-readable program instructions, which when executed by a processor, implement the steps of the method for controlling a fixed-frequency air conditioner according to any one of claims 1~4.
7. An air conditioner comprising a computer readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed by the processor, the processor being capable of executing the steps of the method for controlling a fixed frequency air conditioner according to any one of claims 1~4.
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| CN111878970A (en) * | 2020-06-29 | 2020-11-03 | 宁波奥克斯电气股份有限公司 | Air conditioner heating high-temperature-prevention control method and device, air conditioner and storage medium |
| CN111895590A (en) * | 2020-07-31 | 2020-11-06 | 宁波奥克斯电气股份有限公司 | Control method and device for improving reliability of fixed-frequency air conditioner and air conditioner |
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| CN110332649A (en) * | 2019-07-11 | 2019-10-15 | 宁波奥克斯电气股份有限公司 | A kind of heating antioverloading control method, device and the air conditioner of air conditioner |
| CN111878970A (en) * | 2020-06-29 | 2020-11-03 | 宁波奥克斯电气股份有限公司 | Air conditioner heating high-temperature-prevention control method and device, air conditioner and storage medium |
| CN111895590A (en) * | 2020-07-31 | 2020-11-06 | 宁波奥克斯电气股份有限公司 | Control method and device for improving reliability of fixed-frequency air conditioner and air conditioner |
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