CN105371433A - Control method and device for air conditioner and air conditioner - Google Patents

Control method and device for air conditioner and air conditioner Download PDF

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Publication number
CN105371433A
CN105371433A CN201510844856.1A CN201510844856A CN105371433A CN 105371433 A CN105371433 A CN 105371433A CN 201510844856 A CN201510844856 A CN 201510844856A CN 105371433 A CN105371433 A CN 105371433A
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China
Prior art keywords
conditioner
air
condenser
temperature
condition
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CN201510844856.1A
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Chinese (zh)
Inventor
陈华伟
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea Refrigeration Equipment Co Ltd
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Application filed by Midea Group Co Ltd, Guangdong Midea Refrigeration Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201510844856.1A priority Critical patent/CN105371433A/en
Publication of CN105371433A publication Critical patent/CN105371433A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a control method and a control device for an air conditioner and the air conditioner. The method comprises the following steps: detecting a medium temperature of a condenser by virtue of a first temperature sensor, and detecting an outlet temperature of the condenser by virtue of a second temperature sensor; and controlling a compressor of the air conditioner according to the medium temperature of the condenser and the outlet temperature of the condenser. According to the control method for the air conditioner of the embodiment of the invention, the control precision and reliability on the air conditioner can be improved.

Description

The control method of air-conditioner, device and air-conditioner
Technical field
The present invention relates to household electrical appliance technical field, particularly a kind of control method of air-conditioner, device and air-conditioner.
Background technology
Along with people improve day by day for the pursuit of living standard, air-conditioner becomes more common household electrical appliance gradually.
At present, in some air-conditioners, can control according to the running status of the temperature of condenser to air-conditioner, such as, control the compressor frequency etc. of air-conditioner.The high temperature protection etc. to air-conditioner can be realized thus, normally run to make air-conditioner.But the current temperature according to condenser is to the control of air-conditioner, control accuracy is high not enough, and when occurring abnormal to the detection of condenser temperature, relevant control procedure cannot complete, therefore the reliability controlled is also poor, have impact on the performance of air-conditioner.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the object of the invention is to the control method proposing a kind of air-conditioner, the accuracy and reliability of the control to air-conditioner can be improved.
Second object of the present invention is the control device proposing a kind of air-conditioner.
3rd object of the present invention is to propose a kind of air-conditioner.
The control method of the air-conditioner of embodiment according to a first aspect of the present invention, comprises the following steps: the medium temperature being detected condenser by the first temperature sensor, and the outlet temperature being detected condenser by the second temperature sensor; And control according to the medium temperature of described condenser and the compressor of outlet temperature to described air-conditioner of described condenser.
According to the control method of the air-conditioner of the embodiment of the present invention, detect medium temperature and the outlet temperature of condenser respectively by the first temperature sensor and the second temperature sensor, and according to the medium temperature of condenser and the outlet temperature of condenser, air-conditioner is controlled.Thus, design con-trol process can be carried out by the temperature at condenser two positions, thus the accuracy of control can be improved further, simultaneously, when temperature detection at one of them position of condenser is failed, also can control air-conditioner according to the temperature at another position of condenser, thus the reliability of control can be improved.
In addition, the control method of air-conditioner according to the above embodiment of the present invention can also have following additional technical characteristic:
According to one embodiment of present invention, when the medium temperature of described condenser is more than or equal to the first default medium temperature and is less than the second default medium temperature, determine that described air-conditioner meets first frequency conservation condition; When the medium temperature of described condenser is more than or equal to the second default medium temperature and is less than the 3rd default medium temperature, determine that described air-conditioner meets first frequency and reduces condition; And when the medium temperature of described condenser is more than or equal to the 3rd default medium temperature, determine that described air-conditioner meets the first halt condition; When the outlet temperature of described condenser is more than or equal to the first default outlet temperature and is less than the second default outlet temperature, determine that described air-conditioner meets second frequency conservation condition; When the outlet temperature of described condenser is more than or equal to the second default outlet temperature and is less than the 3rd default outlet temperature, determine that described air-conditioner meets second frequency and reduces condition; And when the outlet temperature of described condenser is more than or equal to the 3rd default outlet temperature; determine that described air-conditioner meets the second halt condition; wherein; described second presets medium temperature is greater than the described first default medium temperature; and be less than the described 3rd default medium temperature; described second presets outlet temperature is greater than the described first default outlet temperature, and is less than the described 3rd default outlet temperature.
Further, the compressor of outlet temperature to described air-conditioner of the described medium temperature according to described condenser and described condenser controls specifically to comprise: if described air-conditioner meets described first halt condition and/or described second halt condition, then control the compressor shutdown of described air-conditioner; If described air-conditioner meets described first frequency reduce condition and/or described second frequency reduction condition, then reduce the compressor frequency of described air-conditioner; And if described air-conditioner meets described first frequency conservation condition and/or described second frequency conservation condition, then keep the compressor frequency of described air-conditioner constant.
According to one embodiment of present invention, described method also comprises: the resistance value detecting described first temperature sensor and the second temperature sensor; And judge whether described first temperature sensor and/or the second temperature sensor break down according to the resistance value of described first temperature sensor and/or the second temperature sensor.
Further, if described first temperature sensor breaks down, then the compressor of outlet temperature to described air-conditioner of the described medium temperature according to described condenser and described condenser controls specifically to comprise: when described air-conditioner meets the second halt condition, control the compressor shutdown of described air-conditioner, when described air-conditioner meets second frequency reduction condition, reduce the compressor frequency of described air-conditioner, when described air-conditioner meets second frequency conservation condition, keep the compressor frequency of described air-conditioner constant, when the second halt condition of described air-conditioner, when second frequency reduction condition and second frequency conservation condition all do not meet, control described air-conditioner normally to run, if described second temperature sensor breaks down, then the compressor of outlet temperature to described air-conditioner of the described medium temperature according to described condenser and described condenser controls specifically to comprise: when described air-conditioner meets the first halt condition, control the compressor shutdown of described air-conditioner, when described air-conditioner meets first frequency reduction condition, reduce the compressor frequency of described air-conditioner, when described air-conditioner meets first frequency conservation condition, keep the compressor frequency of described air-conditioner constant, when the first halt condition of described air-conditioner, when first frequency reduction condition and first frequency conservation condition all do not meet, control described air-conditioner normally to run.
According to one embodiment of present invention, described method also comprises: the opening and closing controlling the defrosting function of described air-conditioner according to the medium temperature of described condenser and the outlet temperature of described condenser.
According to one embodiment of present invention, the opening and closing that the outlet temperature of the described medium temperature according to described condenser and described condenser controls the defrosting function of described air-conditioner specifically comprise: if the medium temperature of described condenser meets first condition, and/or the outlet temperature of described condenser meets second condition, then control described air-conditioner and open defrosting function; If the medium temperature of described condenser meets Article 3 part, and/or the outlet temperature of described condenser meets Article 4 part, then control described air-conditioner and close defrosting function.
Further, if described first temperature sensor breaks down, the opening and closing that then outlet temperature of the described medium temperature according to described condenser and described condenser controls the defrosting function of described air-conditioner specifically comprise: when the outlet temperature of described condenser meets second condition, control described air-conditioner and open defrosting function, when the outlet temperature of described condenser meets Article 4 part, control described air-conditioner and close defrosting function;
If described second temperature sensor breaks down, the opening and closing that then outlet temperature of the described medium temperature according to described condenser and described condenser controls the defrosting function of described air-conditioner specifically comprise: when the medium temperature of described condenser meets first condition, control described air-conditioner and open defrosting function, when the medium temperature of described condenser meets Article 3 part, control described air-conditioner and close defrosting function.
The control device of the air-conditioner of embodiment according to a second aspect of the present invention, comprising: the first temperature sensor, for detecting the medium temperature of condenser; Second temperature sensor, for detecting the outlet temperature of condenser; Controller, for controlling according to the medium temperature of described condenser and the compressor of outlet temperature to described air-conditioner of described condenser.
According to the control device of the air-conditioner of the embodiment of the present invention, detect medium temperature and the outlet temperature of condenser respectively by the first temperature sensor and the second temperature sensor, and according to the medium temperature of condenser and the outlet temperature of condenser, air-conditioner is controlled.Thus, design con-trol process can be carried out by the temperature at condenser two positions, thus the accuracy of control can be improved further, simultaneously, when temperature detection at one of them position of condenser is failed, also can control air-conditioner according to the temperature at another position of condenser, thus the reliability of control can be improved.
In addition, the control device of air-conditioner according to the above embodiment of the present invention can also have following additional technical characteristic:
According to one embodiment of present invention, described controller comprises: determine submodule, during for being more than or equal to the first default medium temperature in the medium temperature of described condenser and being less than the second default medium temperature, determine that described air-conditioner meets first frequency conservation condition; When the medium temperature of described condenser is more than or equal to the second default medium temperature and is less than the 3rd default medium temperature, determine that described air-conditioner meets first frequency and reduces condition; When the medium temperature of described condenser is more than or equal to the 3rd default medium temperature, determine that described air-conditioner meets the first halt condition; When the outlet temperature of described condenser is more than or equal to the first default outlet temperature and is less than the second default outlet temperature, determine that described air-conditioner meets second frequency conservation condition; When the outlet temperature of described condenser is more than or equal to the second default outlet temperature and is less than the 3rd default outlet temperature, determine that described air-conditioner meets second frequency and reduces condition; When the outlet temperature of described condenser is more than or equal to the 3rd default outlet temperature; determine that described air-conditioner meets the second halt condition; wherein; described second presets medium temperature is greater than the described first default medium temperature; and be less than the described 3rd default medium temperature; described second presets outlet temperature is greater than the described first default outlet temperature, and is less than the described 3rd default outlet temperature.
Further, described controller specifically for: described air-conditioner meet the first halt condition and/or the second halt condition time, control the compressor shutdown of described air-conditioner; When described air-conditioner meets first frequency reduction condition and/or second frequency reduces condition, reduce the compressor frequency of described air-conditioner; When described air-conditioner meets first frequency conservation condition and/or second frequency conservation condition, keep the compressor frequency of described air-conditioner constant.
According to one embodiment of present invention, described device also comprises: detection module, for detecting the resistance value of described first temperature sensor and the second temperature sensor; According to the resistance value of described first temperature sensor and/or the second temperature sensor, judge module, for judging whether described first temperature sensor and/or the second temperature sensor break down.
Further, described controller concrete also for: if described first temperature sensor breaks down, when described air-conditioner meets the second halt condition, control the compressor shutdown of described air-conditioner, when described air-conditioner meets second frequency reduction condition, reduce the compressor frequency of described air-conditioner, when described air-conditioner meets second frequency conservation condition, keep the compressor frequency of described air-conditioner constant, when the second halt condition of described air-conditioner, when second frequency reduction condition and second frequency conservation condition all do not meet, control described air-conditioner normally to run, if described second temperature sensor breaks down, when described air-conditioner meets the first halt condition, control the compressor shutdown of described air-conditioner, when described air-conditioner meets first frequency reduction condition, reduce the compressor frequency of described air-conditioner, when described air-conditioner meets first frequency conservation condition, keep the compressor frequency of described air-conditioner constant, when the first halt condition of described air-conditioner, first frequency reduce condition and first frequency conservation condition does not all meet, control described air-conditioner and normally run.
According to one embodiment of present invention, described controller is also for the opening and closing that control the defrosting function of described air-conditioner according to the medium temperature of described condenser and the outlet temperature of described condenser.
According to one embodiment of present invention, described controller concrete also for: if the medium temperature of described condenser meets first condition, and/or the outlet temperature of described condenser meets second condition, then control described air-conditioner and open defrosting function; If the medium temperature of described condenser meets Article 3 part, and/or the outlet temperature of described condenser meets Article 4 part, then control described air-conditioner and close defrosting function.
Further, described controller concrete also for: if described first temperature sensor breaks down, when the outlet temperature of described condenser meets second condition, control described air-conditioner and open defrosting function, when the outlet temperature of described condenser meets Article 4 part, control described air-conditioner and close defrosting function; If described second temperature sensor breaks down, when the medium temperature of described condenser meets first condition, control described air-conditioner and open defrosting function, when the medium temperature of described condenser meets Article 3 part, control described air-conditioner and close defrosting function.
The air-conditioner of embodiment according to a third aspect of the present invention, comprises the control device of the air-conditioner of embodiment according to a second aspect of the present invention.
According to the air-conditioner of the embodiment of the present invention, detect medium temperature and the outlet temperature of condenser respectively by the first temperature sensor and the second temperature sensor, and according to the medium temperature of condenser and the outlet temperature of condenser, air-conditioner is controlled.Thus, design con-trol process can be carried out by the temperature at condenser two positions, thus the accuracy of control can be improved further, simultaneously, when temperature detection at one of them position of condenser is failed, also can control air-conditioner according to the temperature at another position of condenser, thus the reliability of control can be improved.
Accompanying drawing explanation
Fig. 1 is the flow chart of the control method of air-conditioner according to an embodiment of the invention;
Fig. 2 is the structured flowchart of the control device of air-conditioner according to an embodiment of the invention;
Fig. 3 is the structured flowchart of the control device of air-conditioner in accordance with another embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below for transducer air conditioning, the control method of the air-conditioner of the embodiment of the present invention, device and air-conditioner are described.
Fig. 1 is the flow chart of the control method of air-conditioner according to an embodiment of the invention.
As shown in Figure 1, the control method of the air-conditioner of the embodiment of the present invention, comprises the following steps:
S101, detects the medium temperature of condenser by the first temperature sensor, and detects the outlet temperature of condenser by the second temperature sensor.
Wherein, the medium temperature of condenser and outlet temperature refer to the temperature of condenser middle part and the temperature at condensator outlet position respectively.Should be appreciated that the middle part of condenser comprises the position of the geometric center of condenser and the geometric center near condenser.
S102, according to the medium temperature of condenser and the outlet temperature of condenser, the compressor to air-conditioner controls.
In one embodiment of the invention, the compressor frequency of air-conditioner can be controlled according to the outlet temperature of the medium temperature of condenser and condenser.
In one embodiment of the invention, with regard to the medium temperature of condenser, when the medium temperature of condenser is more than or equal to the first default medium temperature and is less than the second default medium temperature, determine that air-conditioner meets first frequency conservation condition; When the medium temperature of condenser is more than or equal to the second default medium temperature and is less than the 3rd default medium temperature, determine that air-conditioner meets first frequency and reduces condition; And when the medium temperature of condenser is more than or equal to the 3rd default medium temperature, determine that air-conditioner meets the first halt condition.With regard to the outlet temperature of condenser, when the outlet temperature of condenser is more than or equal to the first default outlet temperature and is less than the second default outlet temperature, determine that air-conditioner meets second frequency conservation condition; When the outlet temperature of condenser is more than or equal to the second default outlet temperature and is less than the 3rd default outlet temperature, determine that air-conditioner meets second frequency and reduces condition; And when the outlet temperature of condenser is more than or equal to the 3rd default outlet temperature; determine that air-conditioner meets the second halt condition; wherein; second presets medium temperature is greater than the first default medium temperature; and be less than the 3rd default medium temperature; second presets outlet temperature is greater than the first default outlet temperature, and is less than the 3rd default outlet temperature.
Particularly, if air-conditioner meets the first halt condition and/or the second halt condition, then the compressor shutdown of air-conditioner is controlled; If air-conditioner meets first frequency reduce condition and/or second frequency reduction condition, then reduce the compressor frequency of air-conditioner; And if air-conditioner meets first frequency conservation condition and/or second frequency conservation condition, then keep the compressor frequency of air-conditioner constant.
In one embodiment of the invention, first presets medium temperature can be 52 DEG C, and second presets medium temperature can be 55 DEG C, and the 3rd presets medium temperature can be 60 DEG C; First presets outlet temperature can be 55 DEG C, and second presets outlet temperature can be 58 DEG C, and the 3rd presets outlet temperature can be 63 DEG C.
Should be appreciated that the medium temperature of condenser and outlet temperature all can be used as the standard of the temperature weighing condenser.When the temperature of condenser is slightly higher; can temporarily keep the frequency of compressor constant; when the temperature of condenser continues to be increased to certain value; the compressor frequency of air-conditioner can be reduced; when the temperature of condenser is increased to too high temperature value again, the compressor shutdown of air-conditioner can be controlled to protect.
In one embodiment of the invention, first can judge whether air-conditioner meets the first halt condition or the second halt condition.Particularly, if the medium temperature of condenser is more than or equal to 60 DEG C, or the outlet temperature of condenser is more than or equal to 63 degrees Celsius, and maintains more than 5 minutes, then can control the compressor shutdown of air-conditioner.
When air-conditioner neither meets the first halt condition, when also not meeting the second halt condition, can judge whether air-conditioner meets first frequency and reduce conditioned disjunction second frequency reduction condition further.Particularly, when the medium temperature of condenser is less than 60 DEG C, and when the outlet temperature of condenser is less than 63 DEG C, if the medium temperature of condenser is more than or equal to 55 DEG C, or the outlet temperature of condenser is more than or equal to 58 DEG C, then can reduce the compressor frequency of air-conditioner.In one embodiment of the invention, compressor frequency can reduction per minute once, each reduction presets size.
When air-conditioner neither meets the first halt condition and the second halt condition, when also not meeting first frequency reduction condition and second frequency reduction condition, can judge whether air-conditioner meets first frequency conservation condition or second frequency conservation condition further.Particularly, when the medium temperature of condenser is less than 55 DEG C, and when the outlet temperature of condenser is less than 58 DEG C, if the medium temperature of condenser is more than or equal to 52 DEG C, or the outlet temperature of condenser is more than or equal to 55 DEG C, then the compressor frequency of air-conditioner can be kept constant.
In one embodiment of the invention, when the medium temperature of condenser is less than 52 DEG C, and when the outlet temperature of condenser is less than 55 DEG C, can control air-conditioner and normally run, namely compressor runs with specified parameter.
Be to be understood that, no matter the medium temperature of condenser and outlet temperature are increased to meet first frequency conservation condition or second frequency conservation condition, still be reduced to and meet first frequency conservation condition or second frequency conservation condition, the compressor frequency that air-conditioner all can be kept current is constant.For example, when the medium temperature because of condenser is greater than 55 DEG C and reduces compressor frequency, along with the reduction of compressor frequency, the medium temperature of condenser also constantly reduces, when the medium temperature of condenser starts to be reduced to below 55 DEG C, stop the frequency reducing compressor, and keep the frequency of current compressor to run; When air-conditioner is when normally running, the medium temperature of condenser raises gradually, and when starting to be increased to more than 52 DEG C, still keeps the frequency of current compressor to run.
Thus, by above-mentioned control procedure, the accuracy that compressor frequency is controlled can be ensured.
In addition, the control method of the air-conditioner of the embodiment of the present invention, also can comprise: the resistance value detecting the first temperature sensor and the second temperature sensor; And judge whether the first temperature sensor and/or the second temperature sensor break down according to the resistance value of the first temperature sensor and/or the second temperature sensor.
When the resistance value of the first temperature sensor and/or the second temperature sensor be 0 or infinitely great time, then can judge that the first temperature sensor and/or the second temperature sensor are short-circuited or open circuit, therefore, it is possible to judge whether the first temperature sensor and/or the second temperature sensor break down.
In one embodiment of the invention, when any one in the first temperature sensor or the second temperature sensor breaks down, the temperature that can record according to another temperature sensor controls the frequency of compressor.
Particularly, if the first temperature sensor breaks down, then step S102 specifically comprises: when air-conditioner meets the second halt condition, control the compressor shutdown of air-conditioner; When air-conditioner meets second frequency reduction condition, reduce the compressor frequency of air-conditioner; When air-conditioner meets second frequency conservation condition, keep the compressor frequency of air-conditioner constant; When the second halt condition of air-conditioner, second frequency reduce condition and second frequency conservation condition does not all meet, control air-conditioner and normally run.If the second temperature sensor breaks down, then step S102 specifically comprises: when air-conditioner meets the first halt condition, control the compressor shutdown of air-conditioner; When air-conditioner meets first frequency reduction condition, reduce the compressor frequency of air-conditioner; When air-conditioner meets first frequency conservation condition, keep the compressor frequency of air-conditioner constant; When the first halt condition of air-conditioner, first frequency reduce condition and first frequency conservation condition does not all meet, control air-conditioner and normally run.
In one embodiment of the invention, the opening and closing of the defrosting function of air-conditioner also can be controlled according to the outlet temperature of the medium temperature of condenser and condenser.
Particularly, if the medium temperature of condenser meets first condition, and/or the outlet temperature of condenser meets second condition, then control air-conditioner and open defrosting function; If the medium temperature of condenser meets Article 3 part, and/or the outlet temperature of condenser meets Article 4 part, then control air-conditioner and close defrosting function.
Wherein, first condition is: when compressor operating first Preset Time of air-conditioner, the medium temperature of condenser is less than the first default low temperature and the difference of the minimum of the medium temperature of the medium temperature of condenser and condenser does not preset the temperature difference higher than first, or, when compressor operating second Preset Time of air-conditioner, the medium temperature of condenser is less than the second default low temperature and the difference of the minimum of the medium temperature of the medium temperature of condenser and condenser does not preset the temperature difference higher than second, or, when compressor operating the 3rd Preset Time of air-conditioner, the medium temperature of condenser is less than time remaining first preset duration that the 3rd presets low temperature, or, when compressor operating the 4th Preset Time of air-conditioner, the medium temperature of condenser is less than the 4th and presets low temperature.Second condition is: when compressor operating first Preset Time of air-conditioner, the outlet temperature of condenser is less than the 5th default low temperature and the difference of the minimum of the outlet temperature of the outlet temperature of condenser and condenser does not preset the temperature difference higher than first, or, when compressor operating second Preset Time of air-conditioner, the outlet temperature of condenser is less than the 6th default low temperature and the difference of the minimum of the outlet temperature of the outlet temperature of condenser and condenser does not preset the temperature difference higher than second, or, when compressor operating the 3rd Preset Time of air-conditioner, the outlet temperature of condenser is less than time remaining first preset duration that the 7th presets low temperature, or, when compressor operating the 4th Preset Time of air-conditioner, the outlet temperature of condenser is less than the 8th and presets low temperature.Article 3 part is: the medium temperature of condenser is greater than first and presets high temperature, or the outlet temperature of condenser is greater than the second default high temperature; Article 4 part is: the medium temperature of condenser is greater than time remaining second preset duration that the 3rd presets high temperature, or the outlet temperature of condenser is greater than time remaining second preset duration that the 4th presets high temperature.
In one embodiment of the invention, both can control the opening and closing of the defrosting function of air-conditioner according to the medium temperature of condenser, also can control the opening and closing of the defrosting function of air-conditioner according to the outlet temperature of condenser.
Should be appreciated that when the temperature of condenser is lower, air-conditioner can be controlled and open defrosting function to carry out defrost.
Particularly, can within the compressor start time period of 7 minutes to 13 minutes, the record minimum of medium temperature of condenser and the minimum of the outlet temperature of condenser.In one embodiment of the invention, timing can be started when the compressor start of air-conditioner, when the compressor of air-conditioner adds up operation 30 minutes, if the medium temperature of condenser is less than-7 DEG C, and the difference of the minimum of the medium temperature of condenser and the medium temperature of condenser is not higher than 2 DEG C, then can controls air-conditioner and open defrosting function; When the compressor of air-conditioner adds up operation 40 minutes, if the medium temperature of condenser is less than-5 DEG C, and the difference of the minimum of the medium temperature of condenser and the medium temperature of condenser is not higher than 3 DEG C, then can control air-conditioner and open defrosting function; When the compressor of air-conditioner adds up operation 50 minutes, if the medium temperature of condenser is less than-20 DEG C, and continue for 3 minutes, then can control air-conditioner and open defrosting function; When the compressor of air-conditioner adds up operation 100 minutes, if the medium temperature of condenser is less than-15 DEG C, then can controls air-conditioner and open defrosting function.
When the compressor of air-conditioner adds up operation 30 minutes, if the outlet temperature of condenser is less than-9 DEG C, and the difference of the minimum of the outlet temperature of condenser and the outlet temperature of condenser is not higher than 2 DEG C, then can control air-conditioner and open defrosting function; When the compressor of air-conditioner adds up operation 40 minutes, if the outlet temperature of condenser is less than-9 DEG C, and the difference of the minimum of the outlet temperature of condenser and the outlet temperature of condenser is not higher than 3 DEG C, then can control air-conditioner and open defrosting function; When the compressor of air-conditioner adds up operation 50 minutes, if the outlet temperature of condenser is less than-22 DEG C, and continue for 3 minutes, then can control air-conditioner and open defrosting function; When the compressor of air-conditioner adds up operation 100 minutes, if the outlet temperature of condenser is less than-20 DEG C, then can controls air-conditioner and open defrosting function.
When the temperature of condenser is higher, air-conditioner can be controlled and close defrosting function to stop defrost.
Particularly, when the medium temperature of condenser is greater than 16 DEG C, or when the medium temperature of condenser is greater than 18 DEG C, air-conditioner can be controlled and close defrosting function; When the time remaining 1.5 minutes that the medium temperature of condenser is greater than 8 DEG C, or when the outlet temperature of condenser is greater than the time remaining 1.5 minutes of 10 DEG C, air-conditioner can be controlled and close defrosting function.
Thus, by above-mentioned control procedure, the accuracy that air-conditioner defrosting function is controlled can be ensured.
In one embodiment of the invention, when any one in the first temperature sensor or the second temperature sensor breaks down, the temperature that can record according to another temperature sensor controls the opening and closing of the defrosting function of air-conditioner.
Particularly, if the first temperature sensor breaks down, then when the outlet temperature of condenser meets second condition, control air-conditioner and open defrosting function, when the outlet temperature of condenser meets Article 4 part, control air-conditioner and close defrosting function.If the second temperature sensor breaks down, then when the medium temperature of condenser meets first condition, control air-conditioner and open defrosting function, when the medium temperature of condenser meets Article 3 part, control air-conditioner and close defrosting function.
In one embodiment of the invention, if defrosting function opened by air-conditioner reach the 3rd preset duration, then control air-conditioner and close defrosting function.Particularly, when air-conditioner unlatching defrosting function reaches 8 minutes, then can control air-conditioner and close defrosting function.
According to the control method of the air-conditioner of the embodiment of the present invention, detect medium temperature and the outlet temperature of condenser respectively by the first temperature sensor and the second temperature sensor, and according to the medium temperature of condenser and the outlet temperature of condenser, air-conditioner is controlled.Thus, design con-trol process can be carried out by the temperature at condenser two positions, thus the accuracy of control can be improved further, simultaneously, when temperature detection at one of them position of condenser is failed, also can control air-conditioner according to the temperature at another position of condenser, thus the reliability of control can be improved.
For realizing the control method of the air-conditioner of above-described embodiment, the present invention also proposes a kind of control device of air-conditioner.
Fig. 2 is the structured flowchart of the control device of air-conditioner according to an embodiment of the invention.
As shown in Figure 2, the control device of the air-conditioner of the embodiment of the present invention, comprising: the first temperature sensor 10, second temperature sensor 20 and controller 30.
Wherein, first temperature sensor 10 is for detecting the medium temperature of condenser, second temperature sensor 20 is for detecting the outlet temperature of condenser, and controller 30 is for according to the medium temperature of condenser and the outlet temperature of condenser, the compressor to air-conditioner controls.
In one embodiment of the invention, controller 30 can control the compressor frequency of air-conditioner according to the outlet temperature of the medium temperature of condenser and condenser.
In one embodiment of the invention, controller 30 can comprise determines submodule 31, during for being more than or equal to the first default medium temperature in the medium temperature of condenser and being less than the second default medium temperature, determines that air-conditioner meets first frequency conservation condition; When the medium temperature of condenser is more than or equal to the second default medium temperature and is less than the 3rd default medium temperature, determine that air-conditioner meets first frequency and reduces condition; When the medium temperature of condenser is more than or equal to the 3rd default medium temperature, determine that air-conditioner meets the first halt condition; When the outlet temperature of condenser is more than or equal to the first default outlet temperature and is less than the second default outlet temperature, determine that air-conditioner meets second frequency conservation condition; When the outlet temperature of condenser is more than or equal to the second default outlet temperature and is less than the 3rd default outlet temperature, determine that air-conditioner meets second frequency and reduces condition; When the outlet temperature of condenser is more than or equal to the 3rd default outlet temperature; determine that air-conditioner meets the second halt condition; wherein; second presets medium temperature is greater than the first default medium temperature; and be less than the 3rd default medium temperature; second presets outlet temperature is greater than the first default outlet temperature, and is less than the 3rd default outlet temperature.
Controller 30 can be specifically for: when described air-conditioner meets the first halt condition and/or the second halt condition, control the compressor shutdown of described air-conditioner; When described air-conditioner meets first frequency reduction condition and/or second frequency reduces condition, reduce the compressor frequency of described air-conditioner; When described air-conditioner meets first frequency conservation condition and/or second frequency conservation condition, keep the compressor frequency of described air-conditioner constant.
In one embodiment of the invention, first presets medium temperature can be 52 DEG C, and second presets medium temperature can be 55 DEG C, and the 3rd presets medium temperature can be 60 DEG C; First presets outlet temperature can be 55 DEG C, and second presets outlet temperature can be 58 DEG C, and the 3rd presets outlet temperature can be 63 DEG C.
Should be appreciated that the medium temperature of condenser and outlet temperature all can be used as the standard of the temperature weighing condenser.When the temperature of condenser is slightly higher; controller 30 can temporarily keep the frequency of compressor constant; when the temperature of condenser continues to be increased to certain value; controller 30 can reduce the compressor frequency of air-conditioner; when the temperature of condenser is increased to too high temperature value again, controller 30 can control the compressor shutdown of air-conditioner to protect.
In one embodiment of the invention, controller 30 first can judge whether air-conditioner meets the first halt condition or the second halt condition.Particularly, if the medium temperature of condenser is more than or equal to 60 DEG C, or the outlet temperature of condenser is more than or equal to 63 degrees Celsius, and maintains more than 5 minutes, then controller 30 can control the compressor shutdown of air-conditioner.
When air-conditioner neither meets the first halt condition, when also not meeting the second halt condition, controller 30 can judge whether air-conditioner meets first frequency and reduce conditioned disjunction second frequency reduction condition further.Particularly, when the medium temperature of condenser is less than 60 DEG C, and when the outlet temperature of condenser is less than 63 DEG C, if the medium temperature of condenser is more than or equal to 55 DEG C, or the outlet temperature of condenser is more than or equal to 58 DEG C, then controller 30 can reduce the compressor frequency of air-conditioner.In one embodiment of the invention, compressor frequency can reduction per minute once, each reduction presets size.
When air-conditioner neither meets the first halt condition and the second halt condition, when also not meeting first frequency reduction condition and second frequency reduction condition, controller 30 can judge whether air-conditioner meets first frequency conservation condition or second frequency conservation condition further.Particularly, when the medium temperature of condenser is less than 55 DEG C, and when the outlet temperature of condenser is less than 58 DEG C, if the medium temperature of condenser is more than or equal to 52 DEG C, or the outlet temperature of condenser is more than or equal to 55 DEG C, then controller 30 can keep the compressor frequency of air-conditioner constant.
In one embodiment of the invention, when the medium temperature of condenser is less than 52 DEG C, and when the outlet temperature of condenser is less than 55 DEG C, controller 30 can control air-conditioner and normally run, and namely compressor runs with specified parameter.
Be to be understood that, no matter the medium temperature of condenser and outlet temperature are increased to meet first frequency conservation condition or second frequency conservation condition, still be reduced to and meet first frequency conservation condition or second frequency conservation condition, the compressor frequency that controller 30 all can keep air-conditioner current is constant.For example, when the medium temperature because of condenser is greater than 55 DEG C and reduces compressor frequency, along with the reduction of compressor frequency, the medium temperature of condenser also constantly reduces, when the medium temperature of condenser starts to be reduced to below 55 DEG C, stop the frequency reducing compressor, and keep the frequency of current compressor to run; When air-conditioner is when normally running, the medium temperature of condenser raises gradually, and when starting to be increased to more than 52 DEG C, still keeps the frequency of current compressor to run.
Thus, by above-mentioned control procedure, the accuracy that compressor frequency is controlled can be ensured.
In addition, as shown in Figure 3, the control device of the air-conditioner of the embodiment of the present invention, also can comprise: detection module 40 and judge module 50.
Wherein, detection module 40 is for detecting the resistance value of the first temperature sensor and the second temperature sensor, according to the resistance value of the first temperature sensor and/or the second temperature sensor, judge module 50 is for judging whether the first temperature sensor and/or the second temperature sensor break down.
When the resistance value of the first temperature sensor and/or the second temperature sensor be 0 or infinitely great time, then judge module 50 can judge that the first temperature sensor and/or the second temperature sensor are short-circuited or open circuit, therefore, it is possible to judge whether the first temperature sensor and/or the second temperature sensor break down.
In one embodiment of the invention, when any one in the first temperature sensor or the second temperature sensor breaks down, the temperature that controller 30 can record according to another temperature sensor controls the frequency of compressor.
Therefore, in one embodiment of the invention, controller 30 specifically also can be used for: if the first temperature sensor breaks down, and when air-conditioner meets the second halt condition, controls the compressor shutdown of air-conditioner; When air-conditioner meets second frequency reduction condition, reduce the compressor frequency of air-conditioner; When air-conditioner meets second frequency conservation condition, keep the compressor frequency of air-conditioner constant; When the second halt condition of air-conditioner, second frequency reduce condition and second frequency conservation condition does not all meet, control air-conditioner and normally run.If the second temperature sensor breaks down, when air-conditioner meets the first halt condition, control the compressor shutdown of air-conditioner; When air-conditioner meets first frequency reduction condition, reduce the compressor frequency of air-conditioner; When air-conditioner meets first frequency conservation condition, keep the compressor frequency of air-conditioner constant; When the first halt condition of air-conditioner, first frequency reduce condition and first frequency conservation condition does not all meet, control air-conditioner and normally run.
In one embodiment of the invention, controller 30 also can be used for the opening and closing controlling the defrosting function of air-conditioner according to the medium temperature of condenser and the outlet temperature of condenser.
In one embodiment of the invention, controller 30 specifically also can be used for: if the medium temperature of described condenser meets first condition, and/or the outlet temperature of described condenser meets second condition, then control described air-conditioner and open defrosting function; If the medium temperature of described condenser meets Article 3 part, and/or the outlet temperature of described condenser meets Article 4 part, then control described air-conditioner and close defrosting function.
Wherein, first condition is: when compressor operating first Preset Time of air-conditioner, the medium temperature of condenser is less than the first default low temperature and the difference of the minimum of the medium temperature of the medium temperature of condenser and condenser does not preset the temperature difference higher than first, or, when compressor operating second Preset Time of air-conditioner, the medium temperature of condenser is less than the second default low temperature and the difference of the minimum of the medium temperature of the medium temperature of condenser and condenser does not preset the temperature difference higher than second, or, when compressor operating the 3rd Preset Time of air-conditioner, the medium temperature of condenser is less than time remaining first preset duration that the 3rd presets low temperature, or, when compressor operating the 4th Preset Time of air-conditioner, the medium temperature of condenser is less than the 4th and presets low temperature.Second condition is: when compressor operating first Preset Time of air-conditioner, the outlet temperature of condenser is less than the 5th default low temperature and the difference of the minimum of the outlet temperature of the outlet temperature of condenser and condenser does not preset the temperature difference higher than first, or, when compressor operating second Preset Time of air-conditioner, the outlet temperature of condenser is less than the 6th default low temperature and the difference of the minimum of the outlet temperature of the outlet temperature of condenser and condenser does not preset the temperature difference higher than second, or, when compressor operating the 3rd Preset Time of air-conditioner, the outlet temperature of condenser is less than time remaining first preset duration that the 7th presets low temperature, or, when compressor operating the 4th Preset Time of air-conditioner, the outlet temperature of condenser is less than the 8th and presets low temperature.Article 3 part is: the medium temperature of condenser is greater than first and presets high temperature, or the medium temperature of condenser is greater than time remaining second preset duration that second presets high temperature.Article 4 part is: the outlet temperature of condenser is greater than the 3rd and presets high temperature, or the outlet temperature of condenser is greater than time remaining second preset duration that the 4th presets high temperature.
In one embodiment of the invention, controller 30 both can control the opening and closing of the defrosting function of air-conditioner according to the medium temperature of condenser, also can control the opening and closing of the defrosting function of air-conditioner according to the outlet temperature of condenser.
Should be appreciated that when the temperature of condenser is lower, controller 30 can control air-conditioner and open defrosting function to carry out defrost.
Particularly, can within the compressor start time period of 7 minutes to 13 minutes, the record minimum of medium temperature of condenser and the minimum of the outlet temperature of condenser.In one embodiment of the invention, timing can be started when the compressor start of air-conditioner, when the compressor of air-conditioner adds up operation 30 minutes, if the medium temperature of condenser is less than-7 DEG C, and the difference of the minimum of the medium temperature of condenser and the medium temperature of condenser is not higher than 2 DEG C, then controller 30 can control air-conditioner and open defrosting function; When the compressor of air-conditioner adds up operation 40 minutes, if the medium temperature of condenser is less than-5 DEG C, and the difference of the minimum of the medium temperature of condenser and the medium temperature of condenser is not higher than 3 DEG C, then controller 30 can control air-conditioner and open defrosting function; When the compressor of air-conditioner adds up operation 50 minutes, if the medium temperature of condenser is less than-20 DEG C, and continue for 3 minutes, then controller 30 can control air-conditioner and open defrosting function; When the compressor of air-conditioner adds up operation 100 minutes, if the medium temperature of condenser is less than-15 DEG C, then controller 30 can control air-conditioner and open defrosting function.
When the compressor of air-conditioner adds up operation 30 minutes, if the outlet temperature of condenser is less than-9 DEG C, and the difference of the minimum of the outlet temperature of condenser and the outlet temperature of condenser is not higher than 2 DEG C, then controller 30 can control air-conditioner and open defrosting function; When the compressor of air-conditioner adds up operation 40 minutes, if the outlet temperature of condenser is less than-9 DEG C, and the difference of the minimum of the outlet temperature of condenser and the outlet temperature of condenser is not higher than 3 DEG C, then controller 30 can control air-conditioner and open defrosting function; When the compressor of air-conditioner adds up operation 50 minutes, if the outlet temperature of condenser is less than-22 DEG C, and continue for 3 minutes, then controller 30 can control air-conditioner and open defrosting function; When the compressor of air-conditioner adds up operation 100 minutes, if the outlet temperature of condenser is less than-20 DEG C, then controller 30 can control air-conditioner and open defrosting function.
When the temperature of condenser is higher, controller 30 can control air-conditioner and cut out defrosting function to stop defrost.
Particularly, when the medium temperature of condenser is greater than 16 DEG C, or when the medium temperature of condenser is greater than 18 DEG C, controller 30 can control air-conditioner and cut out defrosting function; When the time remaining 1.5 minutes that the medium temperature of condenser is greater than 8 DEG C, or when the outlet temperature of condenser is greater than the time remaining 1.5 minutes of 10 DEG C, controller 30 can control air-conditioner and cut out defrosting function.
Thus, by above-mentioned control procedure, the accuracy that air-conditioner defrosting function is controlled can be ensured.
In one embodiment of the invention, when any one in the first temperature sensor or the second temperature sensor breaks down, the temperature that controller 30 can record according to another temperature sensor controls the opening and closing of the defrosting function of air-conditioner.
Therefore, controller 30 specifically also can be used for: if the first temperature sensor breaks down, when the outlet temperature of condenser meets second condition, controls air-conditioner and opens defrosting function, when the outlet temperature of condenser meets Article 4 part, control air-conditioner and close defrosting function; If the second temperature sensor breaks down, then when the medium temperature of condenser meets first condition, control air-conditioner and open defrosting function, when the medium temperature of condenser meets Article 3 part, control air-conditioner and close defrosting function.
In one embodiment of the invention, controller 30 also can be used for: if defrosting function opened by air-conditioner reach the 3rd preset duration, then control air-conditioner and close defrosting function.Particularly, when air-conditioner unlatching defrosting function reaches 8 minutes, then controller 30 can control air-conditioner and cut out defrosting function.
According to the control device of the air-conditioner of the embodiment of the present invention, detect medium temperature and the outlet temperature of condenser respectively by the first temperature sensor and the second temperature sensor, and according to the medium temperature of condenser and the outlet temperature of condenser, air-conditioner is controlled.Thus, design con-trol process can be carried out by the temperature at condenser two positions, thus the accuracy of control can be improved further, simultaneously, when temperature detection at one of them position of condenser is failed, also can control air-conditioner according to the temperature at another position of condenser, thus the reliability of control can be improved.
For realizing above-described embodiment, the invention allows for a kind of air-conditioner.
The air-conditioner of the embodiment of the present invention, comprises the control device of the air-conditioner described in second aspect present invention embodiment, and concrete embodiment can refer to above-described embodiment, does not repeat them here.
According to the air-conditioner of the embodiment of the present invention, detect medium temperature and the outlet temperature of condenser respectively by the first temperature sensor and the second temperature sensor, and according to the medium temperature of condenser and the outlet temperature of condenser, air-conditioner is controlled.Thus, design con-trol process can be carried out by the temperature at condenser two positions, thus the accuracy of control can be improved further, simultaneously, when temperature detection at one of them position of condenser is failed, also can control air-conditioner according to the temperature at another position of condenser, thus the reliability of control can be improved.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.

Claims (17)

1. a control method for air-conditioner, is characterized in that, comprises the following steps:
Detected the medium temperature of condenser by the first temperature sensor, and detect the outlet temperature of condenser by the second temperature sensor; And
Control according to the medium temperature of described condenser and the compressor of outlet temperature to described air-conditioner of described condenser.
2. the control method of air-conditioner according to claim 1, is characterized in that,
When the medium temperature of described condenser is more than or equal to the first default medium temperature and is less than the second default medium temperature, determine that described air-conditioner meets first frequency conservation condition;
When the medium temperature of described condenser is more than or equal to the second default medium temperature and is less than the 3rd default medium temperature, determine that described air-conditioner meets first frequency and reduces condition;
When the medium temperature of described condenser is more than or equal to the 3rd default medium temperature, determine that described air-conditioner meets the first halt condition;
When the outlet temperature of described condenser is more than or equal to the first default outlet temperature and is less than the second default outlet temperature, determine that described air-conditioner meets second frequency conservation condition;
When the outlet temperature of described condenser is more than or equal to the second default outlet temperature and is less than the 3rd default outlet temperature, determine that described air-conditioner meets second frequency and reduces condition; And
When the outlet temperature of described condenser is more than or equal to the 3rd default outlet temperature; determine that described air-conditioner meets the second halt condition; wherein; described second presets medium temperature is greater than the described first default medium temperature; and be less than the described 3rd default medium temperature; described second presets outlet temperature is greater than the described first default outlet temperature, and is less than the described 3rd default outlet temperature.
3. the control method of air-conditioner according to claim 2, is characterized in that, the compressor of outlet temperature to described air-conditioner of the described medium temperature according to described condenser and described condenser controls specifically to comprise:
If described air-conditioner meets described first halt condition and/or described second halt condition, then control the compressor shutdown of described air-conditioner;
If described air-conditioner meets described first frequency reduce condition and/or described second frequency reduction condition, then reduce the compressor frequency of described air-conditioner; And
If described air-conditioner meets described first frequency conservation condition and/or described second frequency conservation condition, then keep the compressor frequency of described air-conditioner constant.
4. the control method of air-conditioner according to claim 1, is characterized in that, also comprises:
Detect the resistance value of described first temperature sensor and the second temperature sensor; And
Resistance value according to described first temperature sensor and/or the second temperature sensor judges whether described first temperature sensor and/or the second temperature sensor break down.
5. the control method of air-conditioner according to claim 4, it is characterized in that, if described first temperature sensor breaks down, then the compressor of outlet temperature to described air-conditioner of the described medium temperature according to described condenser and described condenser controls specifically to comprise: when described air-conditioner meets the second halt condition, control the compressor shutdown of described air-conditioner, when described air-conditioner meets second frequency reduction condition, reduce the compressor frequency of described air-conditioner, when described air-conditioner meets second frequency conservation condition, keep the compressor frequency of described air-conditioner constant, when the second halt condition of described air-conditioner, when second frequency reduction condition and second frequency conservation condition all do not meet, control described air-conditioner normally to run,
If described second temperature sensor breaks down, then the compressor of outlet temperature to described air-conditioner of the described medium temperature according to described condenser and described condenser controls specifically to comprise: when described air-conditioner meets the first halt condition, control the compressor shutdown of described air-conditioner, when described air-conditioner meets first frequency reduction condition, reduce the compressor frequency of described air-conditioner, when described air-conditioner meets first frequency conservation condition, keep the compressor frequency of described air-conditioner constant, when the first halt condition of described air-conditioner, when first frequency reduction condition and first frequency conservation condition all do not meet, control described air-conditioner normally to run.
6. the control method of air-conditioner according to claim 1, is characterized in that, also comprises:
The opening and closing of the defrosting function of described air-conditioner are controlled according to the medium temperature of described condenser and the outlet temperature of described condenser.
7. the control method of air-conditioner according to claim 6, is characterized in that, the opening and closing that the outlet temperature of the described medium temperature according to described condenser and described condenser controls the defrosting function of described air-conditioner specifically comprise:
If the medium temperature of described condenser meets first condition, and/or the outlet temperature of described condenser meets second condition, then control described air-conditioner and open defrosting function;
If the medium temperature of described condenser meets Article 3 part, and/or the outlet temperature of described condenser meets Article 4 part, then control described air-conditioner and close defrosting function.
8. the control method of the air-conditioner according to claim 4 or 7, it is characterized in that, if described first temperature sensor breaks down, then the opening and closing that the outlet temperature of the described medium temperature according to described condenser and described condenser controls the defrosting function of described air-conditioner specifically comprise:
When the outlet temperature of described condenser meets second condition, control described air-conditioner and open defrosting function, when the outlet temperature of described condenser meets Article 4 part, control described air-conditioner and close defrosting function;
If described second temperature sensor breaks down, then the opening and closing that the outlet temperature of the described medium temperature according to described condenser and described condenser controls the defrosting function of described air-conditioner specifically comprise:
When the medium temperature of described condenser meets first condition, control described air-conditioner and open defrosting function, when the medium temperature of described condenser meets Article 3 part, control described air-conditioner and close defrosting function.
9. a control device for air-conditioner, is characterized in that, comprising:
First temperature sensor, for detecting the medium temperature of condenser;
Second temperature sensor, for detecting the outlet temperature of condenser;
Controller, for controlling according to the medium temperature of described condenser and the compressor of outlet temperature to described air-conditioner of described condenser.
10. the control device of air-conditioner according to claim 9, is characterized in that, described controller comprises:
Determine submodule, during for being more than or equal to the first default medium temperature in the medium temperature of described condenser and being less than the second default medium temperature, determine that described air-conditioner meets first frequency conservation condition; When the medium temperature of described condenser is more than or equal to the second default medium temperature and is less than the 3rd default medium temperature, determine that described air-conditioner meets first frequency and reduces condition; When the medium temperature of described condenser is more than or equal to the 3rd default medium temperature, determine that described air-conditioner meets the first halt condition; When the outlet temperature of described condenser is more than or equal to the first default outlet temperature and is less than the second default outlet temperature, determine that described air-conditioner meets second frequency conservation condition; When the outlet temperature of described condenser is more than or equal to the second default outlet temperature and is less than the 3rd default outlet temperature, determine that described air-conditioner meets second frequency and reduces condition; When the outlet temperature of described condenser is more than or equal to the 3rd default outlet temperature; determine that described air-conditioner meets the second halt condition; wherein; described second presets medium temperature is greater than the described first default medium temperature; and be less than the described 3rd default medium temperature; described second presets outlet temperature is greater than the described first default outlet temperature, and is less than the described 3rd default outlet temperature.
The control device of 11. air-conditioners according to claim 10, is characterized in that, described controller specifically for:
When described air-conditioner meets the first halt condition and/or the second halt condition, control the compressor shutdown of described air-conditioner;
When described air-conditioner meets first frequency reduction condition and/or second frequency reduces condition, reduce the compressor frequency of described air-conditioner;
When described air-conditioner meets first frequency conservation condition and/or second frequency conservation condition, keep the compressor frequency of described air-conditioner constant.
The control device of 12. air-conditioners according to claim 9, is characterized in that, also comprise:
Detection module, for detecting the resistance value of described first temperature sensor and the second temperature sensor;
According to the resistance value of described first temperature sensor and/or the second temperature sensor, judge module, for judging whether described first temperature sensor and/or the second temperature sensor break down.
The control device of 13. air-conditioners according to claim 12, is characterized in that, described controller concrete also for:
If described first temperature sensor breaks down, when described air-conditioner meets the second halt condition, control the compressor shutdown of described air-conditioner, when described air-conditioner meets second frequency reduction condition, reduce the compressor frequency of described air-conditioner, when described air-conditioner meets second frequency conservation condition, keep the compressor frequency of described air-conditioner constant, when the second halt condition of described air-conditioner, second frequency reduce condition and second frequency conservation condition does not all meet, control described air-conditioner and normally run;
If described second temperature sensor breaks down; when described air-conditioner meets the first halt condition; control the compressor shutdown of described air-conditioner; when described air-conditioner meets first frequency reduction condition; reduce the compressor frequency of described air-conditioner; when described air-conditioner meets first frequency conservation condition; keep the compressor frequency of described air-conditioner constant; when the first halt condition of described air-conditioner, first frequency reduce condition and first frequency conservation condition does not all meet, control described air-conditioner and normally run.
The control device of 14. air-conditioners according to claim 9, is characterized in that, described controller also for:
The opening and closing of the defrosting function of described air-conditioner are controlled according to the medium temperature of described condenser and the outlet temperature of described condenser.
The control device of 15. air-conditioners according to claim 14, is characterized in that, described controller concrete also for:
If the medium temperature of described condenser meets first condition, and/or the outlet temperature of described condenser meets second condition, then control described air-conditioner and open defrosting function;
If the medium temperature of described condenser meets Article 3 part, and/or the outlet temperature of described condenser meets Article 4 part, then control described air-conditioner and close defrosting function.
The control device of 16. air-conditioners according to claim 12, is characterized in that, described controller concrete also for:
If described first temperature sensor breaks down, when the outlet temperature of described condenser meets second condition, control described air-conditioner and open defrosting function, when the outlet temperature of described condenser meets Article 4 part, control described air-conditioner and close defrosting function;
If described second temperature sensor breaks down, when the medium temperature of described condenser meets first condition, control described air-conditioner and open defrosting function, when the medium temperature of described condenser meets Article 3 part, control described air-conditioner and close defrosting function.
17. 1 kinds of air-conditioners, comprise the control device of the air-conditioner according to any one of claim 9-16.
CN201510844856.1A 2015-11-27 2015-11-27 Control method and device for air conditioner and air conditioner Pending CN105371433A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105972758A (en) * 2016-05-19 2016-09-28 合肥美的暖通设备有限公司 Defrosting control method and device for air conditioner and air conditioner
CN108332379A (en) * 2018-02-11 2018-07-27 广东美的制冷设备有限公司 Air conditioner and its control method and control device, storage medium
CN108361909A (en) * 2018-02-11 2018-08-03 广东美的制冷设备有限公司 Control method and control device, storage medium and mobile air-conditioner
CN108626935A (en) * 2018-05-18 2018-10-09 青岛海尔股份有限公司 Refrigerator and its compressor frequency control method
CN110039970A (en) * 2019-03-04 2019-07-23 青岛海尔空调器有限总公司 The control method of car air-conditioner
CN110470006A (en) * 2019-08-02 2019-11-19 青岛海尔空调器有限总公司 Control method and device, air-conditioning for air-conditioner defrosting
CN111412694A (en) * 2020-03-26 2020-07-14 宁波奥克斯电气股份有限公司 Condenser, air conditioner defrosting control method and air conditioner
CN111425987A (en) * 2020-04-07 2020-07-17 广东美的暖通设备有限公司 Indoor unit of air conditioner, control method, air conditioner and readable storage medium
CN111457544A (en) * 2020-04-20 2020-07-28 宁波奥克斯电气股份有限公司 Air conditioner operation method and air conditioner
CN113803957A (en) * 2021-09-27 2021-12-17 珠海格力电器股份有限公司 Control method and device of refrigeration equipment, controller and refrigeration equipment
CN114061108A (en) * 2020-08-03 2022-02-18 广东美的制冷设备有限公司 Air conditioner, method of controlling the same, and computer-readable storage medium
CN114061254A (en) * 2021-10-28 2022-02-18 青岛海尔生物医疗股份有限公司 Method and device for self-protection of refrigeration equipment, refrigeration equipment and storage medium
CN114110976A (en) * 2021-11-12 2022-03-01 广东美的制冷设备有限公司 Control method of air conditioner, controller, air conditioner and storage medium

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Cited By (18)

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Publication number Priority date Publication date Assignee Title
CN105972758B (en) * 2016-05-19 2019-02-12 合肥美的暖通设备有限公司 Defrosting control method, defrosting control device and the air conditioner of air conditioner
CN105972758A (en) * 2016-05-19 2016-09-28 合肥美的暖通设备有限公司 Defrosting control method and device for air conditioner and air conditioner
CN108332379B (en) * 2018-02-11 2020-10-02 广东美的制冷设备有限公司 Air conditioner, control method and control device thereof, and storage medium
CN108332379A (en) * 2018-02-11 2018-07-27 广东美的制冷设备有限公司 Air conditioner and its control method and control device, storage medium
CN108361909A (en) * 2018-02-11 2018-08-03 广东美的制冷设备有限公司 Control method and control device, storage medium and mobile air-conditioner
CN108626935A (en) * 2018-05-18 2018-10-09 青岛海尔股份有限公司 Refrigerator and its compressor frequency control method
CN108626935B (en) * 2018-05-18 2020-12-22 青岛海尔股份有限公司 Refrigerator and compressor frequency control method thereof
CN110039970A (en) * 2019-03-04 2019-07-23 青岛海尔空调器有限总公司 The control method of car air-conditioner
CN110470006A (en) * 2019-08-02 2019-11-19 青岛海尔空调器有限总公司 Control method and device, air-conditioning for air-conditioner defrosting
CN111412694A (en) * 2020-03-26 2020-07-14 宁波奥克斯电气股份有限公司 Condenser, air conditioner defrosting control method and air conditioner
CN111425987A (en) * 2020-04-07 2020-07-17 广东美的暖通设备有限公司 Indoor unit of air conditioner, control method, air conditioner and readable storage medium
CN111457544A (en) * 2020-04-20 2020-07-28 宁波奥克斯电气股份有限公司 Air conditioner operation method and air conditioner
CN111457544B (en) * 2020-04-20 2021-10-15 宁波奥克斯电气股份有限公司 Air conditioner operation method and air conditioner
CN114061108A (en) * 2020-08-03 2022-02-18 广东美的制冷设备有限公司 Air conditioner, method of controlling the same, and computer-readable storage medium
CN114061108B (en) * 2020-08-03 2023-04-14 广东美的制冷设备有限公司 Air conditioner, method of controlling the same, and computer-readable storage medium
CN113803957A (en) * 2021-09-27 2021-12-17 珠海格力电器股份有限公司 Control method and device of refrigeration equipment, controller and refrigeration equipment
CN114061254A (en) * 2021-10-28 2022-02-18 青岛海尔生物医疗股份有限公司 Method and device for self-protection of refrigeration equipment, refrigeration equipment and storage medium
CN114110976A (en) * 2021-11-12 2022-03-01 广东美的制冷设备有限公司 Control method of air conditioner, controller, air conditioner and storage medium

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