CN113944983A - Control method of air conditioner and air conditioner - Google Patents
Control method of air conditioner and air conditioner Download PDFInfo
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- CN113944983A CN113944983A CN202111420235.2A CN202111420235A CN113944983A CN 113944983 A CN113944983 A CN 113944983A CN 202111420235 A CN202111420235 A CN 202111420235A CN 113944983 A CN113944983 A CN 113944983A
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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
- F24F11/50—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
- F24F11/70—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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—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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- 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
- F24F2110/12—Temperature of the outside air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Conditioning Control Device (AREA)
Abstract
The embodiment of the invention provides an air conditioner and a control method thereof. The control method of the air conditioner comprises the following steps: acquiring an outdoor environment temperature and an indoor environment temperature; controlling the air conditioner to operate automatically under the condition that the outdoor environment temperature and the indoor environment temperature meet a first preset condition; after the air conditioner automatically cleans and operates for a first preset time, controlling the operation parameters of the air conditioner according to the exhaust pressure of the compressor; wherein the operating parameters include at least one or a combination of: angle of air guide door, rotating speed of indoor fan, rotating speed of outdoor fan and running frequency of compressor. The invention solves the technical problem of poor air conditioning cooling capacity in a high-temperature state.
Description
Technical Field
The invention relates to the technical field of air conditioner control, in particular to a control method of an air conditioner and the air conditioner.
Background
With the development of science and technology and the increasing improvement of the living standard of people, the air conditioner becomes an indispensable household appliance in the life of people. With the technology becoming mature and the competition becoming fierce, the quality requirements of the air conditioner for consumers are higher and higher.
However, in hot summer, as the outdoor environment temperature rises, the external heat dissipation capacity of the condenser is reduced, so that the refrigeration capacity of the air conditioner is attenuated in a high-temperature state, the refrigeration effect of the air conditioner is poor, and the user experience effect is affected.
Disclosure of Invention
In order to solve the problem of poor air conditioning capacity in a high-temperature state, the invention provides a control method of an air conditioner, which comprises the following steps: acquiring an outdoor environment temperature and an indoor environment temperature; controlling the air conditioner to operate automatically under the condition that the outdoor environment temperature and the indoor environment temperature meet a first preset condition; after the air conditioner automatically cleans and operates for a first preset time, controlling the operation parameters of the air conditioner according to the exhaust pressure of the compressor; wherein the operating parameters include at least one or a combination of: angle of air guide door, rotating speed of indoor fan, rotating speed of outdoor fan and running frequency of compressor.
The technical effect achieved after the technical scheme is adopted is as follows: the operating condition and the refrigerating effect of the air conditioner can be accurately judged by acquiring the outdoor environment temperature and the indoor environment temperature; when the air conditioner is in a high-temperature working condition and has poor refrigerating capacity, the state of the air conditioner can be detected by controlling the air conditioner to operate automatically and acquiring the exhaust pressure of the compressor, abnormal reasons are detected and checked, and the operation parameters such as the angle of the air guide door, the rotating speed of the indoor fan, the rotating speed of the outdoor fan, the operating frequency of the compressor and the like are adjusted in time according to the abnormal reasons, so that the refrigerating capacity of the air conditioner is improved, the air conditioner can be ensured to operate continuously and efficiently in a refrigerating mode, and the comfort requirement of a user is met to the maximum extent on the premise that the air conditioner operates safely.
In this embodiment, the first preset condition includes: the outdoor environment temperature is larger than or equal to the outdoor environment temperature threshold value and lasts for a second preset time length, and the difference value between the indoor environment temperature and the set temperature is larger than or equal to the first temperature difference threshold value.
The technical effect achieved after the technical scheme is adopted is as follows: if the outdoor environment temperature is greater than or equal to the outdoor environment temperature threshold value for the second preset time, the current outdoor environment temperature is higher than the outdoor environment temperature threshold value accepted by the air conditioner and lasts for a period of time, and therefore the refrigeration capacity attenuation area of the current air conditioner under the high-temperature working condition can be judged. If the difference value between the indoor environment temperature and the set temperature is larger than or equal to the first temperature difference threshold value, the difference value between the indoor environment temperature and the set temperature is larger, namely the current indoor environment temperature is higher, the refrigerating effect of the air conditioner is poorer, and therefore the abnormal conditions of heat exchanger fin filth blockage or refrigerant insufficiency and the like of the air conditioner can be judged.
In this embodiment, the controlling the air conditioner operation parameter according to the compressor discharge pressure includes: and if the exhaust pressure of the compressor meets a second preset condition, performing fluorine-lacking alarm and increasing the operation parameter.
The technical effect achieved after the technical scheme is adopted is as follows: if the discharge pressure of the compressor meets the second preset condition, the current discharge pressure of the compressor is abnormal, namely the current refrigerant of the air conditioner is insufficient, so that a fluorine deficiency alarm is performed to remind a user of supplementing the refrigerant in time. Meanwhile, the air conditioner is controlled to increase the operation parameters so as to improve the refrigerating capacity of the air conditioner and ensure the indoor refrigerating effect.
In this embodiment, the second preset condition includes: and the difference value between the standard compressor discharge pressure and the compressor discharge pressure is greater than or equal to the difference threshold value.
The technical effect achieved after the technical scheme is adopted is as follows: if the difference between the standard compressor discharge pressure and the compressor discharge pressure is greater than or equal to the difference threshold, it is indicated that the current compressor discharge pressure is far lower than the standard compressor discharge pressure, that is, the current refrigerant flow is lower than the refrigerant flow required by the normal operation of the air conditioner, so that it can be determined that the refrigerant of the current air conditioner is insufficient.
In this embodiment, the increasing the operation parameter includes: the increasing the operating parameter includes: adjusting the angle of the air guide door to a target angle; wherein the target angle is an upper limit value of the air guide door angle.
The technical effect achieved after the technical scheme is adopted is as follows: when the air conditioner has the problem of insufficient refrigerant, the angle of the air guide door can be adjusted to a target angle, namely, the air guide door is adjusted to a place which is approximately parallel to the air outlet, and the air outlet resistance of the indoor unit is reduced to the minimum, so that the air outlet area and the air outlet quantity of the indoor unit are quickly improved, the refrigerating capacity of the air conditioner is quickly improved, and the satisfaction degree of users is improved.
In this embodiment, the increasing the operation parameter includes: adjusting the rotating speed of the indoor fan to be a target rotating speed of the indoor fan; and the target indoor fan rotating speed is the upper limit value of the indoor fan rotating speed.
The technical effect achieved after the technical scheme is adopted is as follows: when the problem that the refrigerant is insufficient occurs in the air conditioner, the rotating speed of the indoor fan can be adjusted to the upper limit value of the rotating speed of the indoor fan through the adjustment of the rotating speed of the indoor fan, and the maximum rotating speed of the indoor fan is output, so that the air output of the indoor fan is increased rapidly, the refrigerating capacity of the air conditioner is increased rapidly, and the satisfaction of a user is improved.
In this embodiment, the increasing the operation parameter includes: adjusting the rotating speed of the outdoor fan to a target rotating speed of the outdoor fan; and the target rotating speed of the outdoor fan is the upper limit value of the rotating speed of the outdoor fan.
The technical effect achieved after the technical scheme is adopted is as follows: when the air conditioner has the problem of insufficient refrigerant, the maximum rotating speed of the outdoor fan can be output by adjusting the rotating speed of the outdoor fan to the upper limit value of the rotating speed of the outdoor fan, so that the air output of the outdoor fan is increased quickly, the external heat dissipation capacity of the air conditioner is increased, the refrigerating capacity of the air conditioner is increased quickly, and the satisfaction degree of users is increased.
In this embodiment, the increasing the operation parameter includes: adjusting the compressor operating frequency to a target compressor operating frequency when the compressor discharge temperature is less than or equal to a compressor discharge temperature threshold; wherein the target compressor operating frequency is an upper limit value of the compressor operating frequency.
The technical effect achieved after the technical scheme is adopted is as follows: when the air conditioner has the problem of insufficient refrigerant, the operation frequency of the compressor can be adjusted to the upper limit value of the operation frequency of the compressor on the basis of meeting the condition that the exhaust temperature of the compressor is less than or equal to the exhaust temperature threshold of the compressor, so that the refrigerating capacity of the air conditioner is improved to the maximum extent on the premise of ensuring the reliable system pressure, the maximum refrigerating capacity is output, and the satisfaction degree of users is improved.
In this embodiment, the method for controlling an air conditioner further includes: continuing to operate the air conditioner for a third preset time according to the adjusted operating parameters of the air conditioner; acquiring a second indoor environment temperature; and adjusting the operation parameter according to the difference value between the second indoor environment temperature and the set temperature.
The technical effect achieved after the technical scheme is adopted is as follows: after the angle of the air guide door is adjusted to the most proper position of the air guide door, the rotating speed of the indoor fan is adjusted to the maximum rotating speed of the indoor fan, the rotating speed of the outdoor fan is adjusted to the maximum rotating speed of the outdoor fan, and the operating frequency of the compressor is adjusted to the maximum operating frequency of the compressor which ensures reliable operation of the system, the air conditioner is controlled to continue to operate for a third preset time by the adjusted most proper position of the air guide door, the maximum rotating speed of the indoor fan, the maximum rotating speed of the outdoor fan and the maximum operating frequency of the compressor. And then, acquiring a second indoor environment temperature, and determining the refrigeration effect of the air conditioner through the difference value between the second indoor environment temperature and the set temperature, so that the running state of the air conditioner can be further adjusted according to the refrigeration effect of the air conditioner.
In this embodiment, the adjusting the operation parameter according to the difference between the second indoor ambient temperature and the set temperature includes: if the difference value between the second indoor environment temperature and the set temperature is larger than or equal to the first temperature difference threshold value, the operation parameters of the air conditioner are increased again; if the difference value between the second indoor environment temperature and the set temperature is smaller than or equal to a second temperature difference threshold value, controlling the air conditioner to normally perform refrigeration operation; and if the difference value between the second indoor environment temperature and the set temperature is smaller than the first temperature difference threshold value and larger than the second temperature difference threshold value, the running frequency of the compressor after adjustment is reduced.
The technical effect achieved after the technical scheme is adopted is as follows: if the difference value between the second indoor environment temperature and the set temperature is greater than or equal to the first temperature difference threshold value, the second indoor environment temperature is higher than the set temperature more, namely the refrigeration effect of the current air conditioner is poor, so that the operation parameters of the air conditioner are increased again, and the maximum refrigeration capacity is continuously output; if the difference value between the second indoor environment temperature and the set temperature is smaller than or equal to a second temperature difference threshold value, the second indoor environment temperature is close to the set temperature, the current refrigeration effect is good, and therefore the air conditioner can be controlled to normally refrigerate; if the difference between the second indoor ambient temperature and the set temperature is smaller than the first temperature difference threshold and larger than the second temperature difference threshold, it indicates that the second indoor ambient temperature is higher than the set temperature but not particularly high, and it is not necessary to adjust the operating frequency of the compressor to the maximum, so that the adjusted operating frequency of the compressor can be appropriately reduced.
An embodiment of the present invention provides an air conditioner, including: the acquisition module is used for acquiring the outdoor environment temperature and the indoor environment temperature; the first control module is used for controlling the air conditioner to operate in a self-cleaning mode under the condition that the outdoor environment temperature and the indoor environment temperature meet a first preset condition; the second control module is used for controlling the operation parameters of the air conditioner according to the exhaust pressure of the compressor after the air conditioner automatically cleans for a first preset time; wherein the operating parameters include at least one or a combination of: angle of air guide door, rotating speed of indoor fan, rotating speed of outdoor fan and running frequency of compressor.
An embodiment of the present invention provides an air conditioner, including: a computer-readable storage medium storing a computer program that when read and executed by a packaged IC, implements a control method of an air conditioner as described in any one of the preceding embodiments, and the packaged IC.
In summary, the above embodiments of the present application may have one or more of the following advantages or benefits:
(1) the operating condition and the refrigerating effect of the air conditioner can be accurately judged by acquiring the outdoor environment temperature and the indoor environment temperature; when the air conditioner is in a high-temperature working condition and has poor refrigerating capacity, the state of the air conditioner can be detected by controlling the self-cleaning operation of the air conditioner and obtaining the exhaust pressure of the compressor, abnormal reasons are detected and checked, and the operation parameters such as the angle of the air guide door, the rotating speed of the indoor fan, the rotating speed of the outdoor fan, the operating frequency of the compressor and the like are adjusted in time according to the abnormal reasons, so that the refrigerating capacity of the air conditioner under the high-temperature working condition is improved, and the use satisfaction degree of users is improved.
(2) If the outdoor environment temperature is greater than or equal to the outdoor environment temperature threshold value for the second preset time, the current outdoor environment temperature is higher than the outdoor environment temperature threshold value accepted by the air conditioner and lasts for a period of time, and therefore the refrigeration capacity attenuation area of the current air conditioner under the high-temperature working condition can be judged. If the difference value between the indoor environment temperature and the set temperature is larger than or equal to the first temperature difference threshold value, the difference value between the indoor environment temperature and the set temperature is larger, namely the current indoor environment temperature is higher, the refrigerating effect of the air conditioner is poorer, and therefore the abnormal conditions of heat exchanger fin filth blockage or refrigerant insufficiency and the like of the air conditioner can be judged.
(3) After the angle of the air guide door is adjusted to the most proper position of the air guide door, the rotating speed of the indoor fan is adjusted to the maximum rotating speed of the indoor fan, the rotating speed of the outdoor fan is adjusted to the maximum rotating speed of the outdoor fan, and the operating frequency of the compressor is adjusted to the maximum operating frequency of the compressor which ensures reliable operation of the system, the air conditioner is controlled to continue to operate for a third preset time by the adjusted most proper position of the air guide door, the maximum rotating speed of the indoor fan, the maximum rotating speed of the outdoor fan and the maximum operating frequency of the compressor. And then, acquiring a second indoor environment temperature, and determining the refrigeration effect of the air conditioner through the difference value between the second indoor environment temperature and the set temperature, so that the running state of the air conditioner can be further adjusted according to the refrigeration effect of the air conditioner.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart illustrating a control method of an air conditioner according to a first embodiment of the present invention.
Fig. 2 is a detailed flowchart illustrating a control method of the air conditioner of fig. 1.
Fig. 3 is a schematic block diagram of an air conditioner according to a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, it is a schematic flow chart of a control method of an air conditioner according to the present invention. Referring to fig. 1 and 2, the control method of the air conditioner includes, for example, the steps of: acquiring an outdoor environment temperature and an indoor environment temperature; controlling the air conditioner to operate automatically under the condition that the outdoor environment temperature and the indoor environment temperature meet a first preset condition; the method comprises the steps that after the air conditioner runs for a first preset time period in a self-cleaning mode, the exhaust pressure of a compressor is obtained; controlling the operation parameters of the air conditioner according to the exhaust pressure of the compressor; wherein the operating parameters include at least one or a combination of: angle of air guide door, rotating speed of indoor fan, rotating speed of outdoor fan and running frequency of compressor. Specifically, the preferred value of the first preset time period is 20 minutes.
In one embodiment, the operation condition and the refrigeration effect of the air conditioner can be accurately judged by acquiring the outdoor environment temperature and the indoor environment temperature; when the air conditioner is in a high-temperature working condition and has poor refrigerating capacity, the state of the air conditioner can be detected by controlling the self-cleaning operation of the air conditioner and obtaining the exhaust pressure of the compressor, abnormal reasons are detected and checked, and the operation parameters such as the angle of the air guide door, the rotating speed of the indoor fan, the rotating speed of the outdoor fan, the operating frequency of the compressor and the like are adjusted in time according to the abnormal reasons, so that the refrigerating capacity of the air conditioner under the high-temperature working condition is improved, and the use satisfaction degree of users is improved.
For example, if the outdoor environment temperature and the indoor environment temperature satisfy a first preset condition, it indicates that the air conditioner is currently in a high-temperature working condition and has poor refrigerating capacity, and therefore, the air conditioner is controlled to perform self-cleaning operation to clean the indoor unit heat exchanger fins and the outdoor unit heat exchanger fins so as to remove dust and foreign matters attached to the surfaces of the indoor unit heat exchanger fins and the outdoor unit heat exchanger fins, thereby improving the refrigerating capacity of the air conditioner. And after the air conditioner automatically cleans for a first preset time, acquiring the exhaust pressure of the compressor. If the exhaust pressure of the compressor is abnormal, the reason that the refrigerating capacity of the air conditioner is poor is not that fins of the heat exchanger are dirty and blocked, so that the refrigerating capacity of the air conditioner is improved by adjusting the operating parameters such as the angle of the air guide door, the rotating speed of the indoor fan, the rotating speed of the outdoor fan, the operating frequency of the compressor and the like. If the exhaust pressure of the compressor is recovered to be normal, the refrigerating capacity of the air conditioner is poor due to the fact that fins of the heat exchanger are dirty and blocked, and therefore the air conditioner can operate according to a normal refrigerating mode without adjusting the operating parameters of the air conditioner.
Further, the first preset condition includes: the outdoor environment temperature is larger than or equal to the outdoor environment temperature threshold value and lasts for a second preset time length, and the difference value between the indoor environment temperature and the set temperature is larger than or equal to the first temperature difference threshold value. Wherein the value range of the outdoor environment temperature threshold is [32 ℃, 37 ℃, and the optimal value is 35 ℃; the preferred value of the second preset duration is 20 minutes; a preferred value of the first temperature difference threshold is 3 deg.c.
For example, if the outdoor ambient temperature is greater than or equal to the outdoor ambient temperature threshold for the second preset duration, it indicates that the current outdoor ambient temperature is higher than the outdoor ambient temperature threshold acceptable by the air conditioner and lasts for a duration, so that it can be determined that the current air conditioner is in the cooling capacity attenuation region under the high-temperature working condition. If the difference value between the indoor environment temperature and the set temperature is larger than or equal to the first temperature difference threshold value, the difference value between the indoor environment temperature and the set temperature is larger, namely the current indoor environment temperature is higher, the refrigerating effect of the air conditioner is poorer, and therefore the abnormal conditions of heat exchanger fin filth blockage or refrigerant insufficiency and the like of the air conditioner can be judged.
In one embodiment, when the outdoor ambient temperature is too high, the external heat dissipation capability of the outdoor heat exchanger of the air conditioner is reduced, which causes the reduction of the refrigeration capability under the high-temperature working condition, thereby reducing the refrigeration effect of the air conditioner to a certain extent. However, under normal conditions, i.e., when the air conditioner is in good condition, the attenuation of the cooling capacity does not affect the normal cooling process in the room; unless the air conditioner is also subjected to abnormal conditions such as dirty fins of a heat exchanger or insufficient refrigerant, the refrigerating capacity of the air conditioner is particularly poor, and the normal indoor refrigerating process is affected.
Further, the controlling the air conditioner operation parameter according to the compressor discharge pressure includes: and if the exhaust pressure of the compressor meets a second preset condition, performing fluorine-lacking alarm and increasing the operation parameter.
In an embodiment, if the compressor discharge pressure meets the second preset condition, it indicates that the current compressor discharge pressure is abnormal, that is, the current air conditioner has insufficient refrigerant, so a fluorine deficiency alarm is performed to remind the user to replenish the refrigerant in time. Meanwhile, the air conditioner is controlled to increase the operation parameters so as to improve the refrigerating capacity of the air conditioner and ensure the indoor refrigerating effect.
Further, the second preset condition includes: and the difference value between the standard compressor discharge pressure and the compressor discharge pressure is greater than or equal to the difference threshold value. Wherein the preferred value of the difference threshold is 1 MPa.
In one embodiment, if the difference between the standard discharge pressure of the compressor and the discharge pressure of the compressor is greater than or equal to the difference threshold, it indicates that the current discharge pressure of the compressor is much lower than the standard discharge pressure of the compressor, that is, the current refrigerant flow is lower than the refrigerant flow required by the normal operation of the air conditioner, and therefore it can be determined that the current refrigerant of the air conditioner is insufficient.
Further, the adjusting the operation parameter includes: and adjusting the angle of the air guide door to a target angle so as to reduce air outlet resistance.
In one embodiment, when the air conditioner has a problem of insufficient refrigerant, the air outlet resistance of the indoor unit is reduced to the minimum by adjusting the angle of the air guiding door to a target angle, that is, adjusting the air guiding door to a position approximately parallel to the air outlet, so as to quickly increase the air outlet area and the air outlet volume of the indoor unit, further quickly increase the refrigerating capacity of the air conditioner, and increase the satisfaction of users.
Further, the adjusting the operation parameter includes: adjusting the rotating speed of the indoor fan to be a target rotating speed of the indoor fan; and the target indoor fan rotating speed is the upper limit value of the indoor fan rotating speed.
In a specific embodiment, when the air conditioner has the problem of insufficient refrigerant, the maximum indoor fan rotating speed can be output by adjusting the indoor fan rotating speed to the upper limit value of the indoor fan rotating speed, so that the air output of the indoor fan is quickly increased, the refrigerating capacity of the air conditioner is quickly increased, and the satisfaction degree of a user is improved.
Further, the adjusting the operation parameter includes: adjusting the rotating speed of the outdoor fan to a target rotating speed of the outdoor fan; and the target rotating speed of the outdoor fan is the upper limit value of the rotating speed of the outdoor fan.
In a specific embodiment, when the air conditioner has a problem of insufficient refrigerant, the maximum rotating speed of the outdoor fan can be output by adjusting the rotating speed of the outdoor fan to the upper limit value of the rotating speed of the outdoor fan, so that the air output of the outdoor fan is increased rapidly, the external heat dissipation capacity of the air conditioner is increased, the refrigeration capacity of the air conditioner is increased rapidly, and the satisfaction degree of users is increased.
Further, the adjusting the operation parameter includes: adjusting the compressor operating frequency to a target compressor operating frequency when the compressor discharge temperature is less than or equal to a compressor discharge temperature threshold; wherein the target compressor operating frequency is an upper limit value of the compressor operating frequency. Specifically, the preferred value of the compressor discharge temperature threshold is 115 ℃.
In a specific embodiment, when the air conditioner has a problem of insufficient refrigerant, the operation frequency of the compressor can be adjusted to the upper limit value of the operation frequency of the compressor on the basis that the exhaust temperature of the compressor is less than or equal to the exhaust temperature threshold of the compressor, so that the refrigeration capacity of the air conditioner is increased to the maximum extent on the premise of ensuring the reliable system pressure, the maximum refrigeration capacity is output, and the satisfaction degree of a user is improved.
Further, the control method of the air conditioner further includes: continuing to operate the air conditioner for a third preset time according to the adjusted operating parameters of the air conditioner; acquiring a second indoor environment temperature; and adjusting the operation parameter according to the difference value between the second indoor environment temperature and the set temperature. Wherein the preferred value of the third preset time period is 60 minutes.
In one embodiment, after the angle of the air guiding door is adjusted to the most clockwise position of the air guiding door, the rotating speed of the indoor fan is adjusted to the maximum rotating speed of the indoor fan, the rotating speed of the outdoor fan is adjusted to the maximum rotating speed of the outdoor fan, and the operating frequency of the compressor is adjusted to the maximum operating frequency of the compressor which ensures reliable operation of the system, the air conditioner is controlled to continue to operate for a third preset time period by the adjusted most clockwise position of the air guiding door, the maximum rotating speed of the indoor fan, the maximum rotating speed of the outdoor fan and the maximum operating frequency of the compressor. And then, acquiring a second indoor environment temperature, and determining the refrigeration effect of the air conditioner through the difference value between the second indoor environment temperature and the set temperature, so that the running state of the air conditioner can be further adjusted according to the refrigeration effect of the air conditioner.
Further, the adjusting the operation parameter according to the difference between the second indoor ambient temperature and the set temperature includes: if the difference value between the second indoor environment temperature and the set temperature is larger than or equal to the first temperature difference threshold value, the operation parameters of the air conditioner are increased again; if the difference value between the second indoor environment temperature and the set temperature is smaller than or equal to a second temperature difference threshold value, controlling the air conditioner to normally perform refrigeration operation, namely to perform operation according to an EE curve of the air conditioner; and if the difference value between the second indoor environment temperature and the set temperature is smaller than the first temperature difference threshold value and larger than the second temperature difference threshold value, the running frequency of the compressor after adjustment is reduced. Wherein the second temperature difference threshold is preferably 0 ℃; the preferred reduction in the operating frequency of the compressor after adjustment is 5 HZ.
In a specific embodiment, if the difference between the second indoor ambient temperature and the set temperature is greater than or equal to the first temperature difference threshold, it indicates that the second indoor ambient temperature is higher than the set temperature more, that is, the current air conditioner has a poor cooling effect, so that the operating parameters of the air conditioner are increased again, and the maximum cooling capacity is continuously output; if the difference value between the second indoor environment temperature and the set temperature is smaller than or equal to a second temperature difference threshold value, the second indoor environment temperature is close to the set temperature, the current refrigeration effect is good, and therefore the air conditioner can be controlled to normally refrigerate; if the difference between the second indoor ambient temperature and the set temperature is smaller than the first temperature difference threshold and larger than the second temperature difference threshold, it indicates that the second indoor ambient temperature is higher than the set temperature but not particularly high, and it is not necessary to adjust the operating frequency of the compressor to the maximum, so that the adjusted operating frequency of the compressor can be appropriately reduced.
[ second embodiment ]
Referring to fig. 3, a block diagram of an air conditioner 200 according to a second embodiment of the present invention is shown. The air conditioner 200 includes, for example: a first acquisition module 210, a first control module 220, a second acquisition module 230, and a second control module 240. The first obtaining module 210 is configured to obtain an outdoor ambient temperature and an indoor ambient temperature; the first control module 220 is configured to control the air conditioner to perform self-cleaning operation when the outdoor ambient temperature and the indoor ambient temperature satisfy a first preset condition; the second obtaining module 230 is configured to obtain a discharge pressure of the compressor after the air conditioner operates for a first preset time period in a self-cleaning manner; the second control module 240 is used for controlling the operation parameters of the air conditioner according to the discharge pressure of the compressor; specifically, the operating parameters include at least one or a combination of the following: angle of air guide door, rotating speed of indoor fan, rotating speed of outdoor fan and running frequency of compressor.
In a specific embodiment, the first obtaining module 210, the first control module 220, the second obtaining module 230 and the second control module 240 cooperate with each other to implement the control method of the air conditioner provided in the first embodiment of the present invention.
[ third embodiment ]
A third embodiment of the present invention provides an air conditioner, for example, including: a computer-readable storage medium storing a computer program that is read and executed by the packaged IC, and a packaged IC, the air conditioner implementing the method of controlling an air conditioner provided in the first embodiment of the present invention.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (12)
1. A method of controlling an air conditioner, comprising:
acquiring an outdoor environment temperature and an indoor environment temperature;
controlling the air conditioner to operate automatically under the condition that the outdoor environment temperature and the indoor environment temperature meet a first preset condition;
the method comprises the steps that after the air conditioner runs for a first preset time period in a self-cleaning mode, the exhaust pressure of a compressor is obtained;
controlling the operation parameters of the air conditioner according to the exhaust pressure of the compressor;
wherein the operating parameters include at least one or a combination of: angle of air guide door, rotating speed of indoor fan, rotating speed of outdoor fan and running frequency of compressor.
2. The control method of an air conditioner according to claim 1, wherein the first preset condition includes:
the outdoor environment temperature is larger than or equal to the outdoor environment temperature threshold value and lasts for a second preset time length, and the difference value between the indoor environment temperature and the set temperature is larger than or equal to the first temperature difference threshold value.
3. The method of claim 2, wherein said controlling an air conditioner operating parameter based on said compressor discharge pressure comprises:
and if the exhaust pressure of the compressor meets a second preset condition, performing fluorine-lacking alarm and increasing the operation parameter.
4. The control method of an air conditioner according to claim 3, wherein the second preset condition includes:
and the difference value between the standard compressor discharge pressure and the compressor discharge pressure is greater than or equal to the difference threshold value.
5. The control method of an air conditioner according to claim 3, wherein said adjusting up the operation parameter includes:
and adjusting the angle of the air guide door to a target angle so as to reduce air outlet resistance.
6. The control method of an air conditioner according to claim 3, wherein said adjusting up the operation parameter includes:
adjusting the rotating speed of the indoor fan to be a target rotating speed of the indoor fan;
and the target indoor fan rotating speed is the upper limit value of the indoor fan rotating speed.
7. The control method of an air conditioner according to claim 3, wherein said adjusting up the operation parameter includes:
adjusting the rotating speed of the outdoor fan to a target rotating speed of the outdoor fan;
and the target rotating speed of the outdoor fan is the upper limit value of the rotating speed of the outdoor fan.
8. The control method of an air conditioner according to claim 3, wherein said adjusting up the operation parameter includes:
in the case where the compressor discharge temperature is equal to or less than the compressor discharge temperature threshold,
adjusting the compressor operating frequency to a target compressor operating frequency;
wherein the target compressor operating frequency is an upper limit value of the compressor operating frequency.
9. The control method of an air conditioner according to claim 3, further comprising:
continuing to operate the air conditioner for a third preset time according to the adjusted operating parameters of the air conditioner;
acquiring a second indoor environment temperature;
and adjusting the operation parameter according to the difference value between the second indoor environment temperature and the set temperature.
10. The method of claim 9, wherein said adjusting the operating parameter according to the difference between the second indoor ambient temperature and a set temperature comprises:
if the difference value between the second indoor environment temperature and the set temperature is larger than or equal to the first temperature difference threshold value, the operation parameter is increased again;
if the difference value between the second indoor environment temperature and the set temperature is smaller than or equal to a second temperature difference threshold value, controlling the air conditioner to normally perform refrigeration operation;
and if the difference value between the second indoor environment temperature and the set temperature is smaller than the first temperature difference threshold value and larger than the second temperature difference threshold value, the running frequency of the compressor after adjustment is reduced.
11. An air conditioner, comprising:
the first acquisition module is used for acquiring the outdoor environment temperature and the indoor environment temperature;
the first control module is used for controlling the air conditioner to operate in a self-cleaning mode under the condition that the outdoor environment temperature and the indoor environment temperature meet a first preset condition;
the second acquisition module is used for acquiring the exhaust pressure of the compressor after the air conditioner automatically cleans and operates for a first preset time;
the second control module is used for controlling the operation parameters of the air conditioner according to the discharge pressure of the compressor;
wherein the operating parameters include at least one or a combination of: angle of air guide door, rotating speed of indoor fan, rotating speed of outdoor fan and running frequency of compressor.
12. An air conditioner, comprising: a computer-readable storage medium storing a computer program which is read and executed by a packaged IC, and a packaged IC, the air conditioner implementing the control method of the air conditioner according to any one of claims 1 to 10.
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