CN111023407B - Control method and control system for improving heating comfort of air conditioner and air conditioner - Google Patents

Control method and control system for improving heating comfort of air conditioner and air conditioner Download PDF

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Publication number
CN111023407B
CN111023407B CN201911121069.9A CN201911121069A CN111023407B CN 111023407 B CN111023407 B CN 111023407B CN 201911121069 A CN201911121069 A CN 201911121069A CN 111023407 B CN111023407 B CN 111023407B
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Prior art keywords
air conditioner
temperature
windshield
preset
rotating speed
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CN111023407A (en
Inventor
岳阳
曾友坚
***
罗安发
强兵罗
钱益
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • 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
    • 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
    • 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
    • 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
    • F24F11/873—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling refrigerant heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/40—Damper positions, e.g. open or closed
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a control method, a control system and an air conditioner for improving the heating comfort of the air conditioner. The control system comprises a detection unit and a control unit which are connected with each other. The air conditioner includes a control system. The control method, the control system and the air conditioner provided by the invention have the advantages that the operating parameters of the air conditioner are adjusted by comprehensively considering the temperatures of the operating windshield and the indoor coil, the heating efficiency of the air conditioner can be fully utilized, the experience of body feeling and sound sensation is improved, and the heating comfort of the air conditioner is improved.

Description

Control method and control system for improving heating comfort of air conditioner and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and a control system for improving the heating comfort of an air conditioner and the air conditioner.
Background
When the air conditioner is in heating operation, along with the reduction of the outdoor environment temperature, the heat absorbed and transferred from the outdoor to the indoor is reduced, and the corresponding indoor air outlet temperature is reduced. In order to improve the heating effect of the air conditioner, an electric auxiliary heating device is usually added to the indoor unit. When the air conditioner heats and operates, the electric auxiliary heating is controlled to be started and stopped only according to the temperature of the indoor coil pipe in the prior art, so that the air outlet temperature is changed, the method cannot accurately adjust the indoor heating comfort, and the experience of a human body on the heating comfort is influenced.
Therefore, it is necessary to provide a control method, a control system and an air conditioner, which can precisely adjust the outlet air temperature, so as to improve the heating comfort of the air conditioner.
Disclosure of Invention
The invention aims to provide a control method and a control system for improving the heating comfort of an air conditioner and the air conditioner, and aims to solve the technical problems that the air outlet temperature is not accurately regulated during the heating operation of the air conditioner, and the heating comfort of the air conditioner is poor.
In order to achieve the purpose, the invention adopts the following technical scheme,
a control method for improving heating comfort of an air conditioner comprises the following steps:
after the air conditioner runs stably at a preset internal machine rotating speed and a preset compressor frequency, acquiring the current running windshield and the indoor coil temperature of the air conditioner, and comparing the indoor coil temperature with a first preset temperature;
if the temperature of the indoor coil pipe is lower than a first preset temperature, adjusting the rotating speed of the indoor unit and the frequency of the compressor according to the running windshield, and starting electric auxiliary heating;
the air conditioner operates for a preset time at the regulated internal machine rotating speed and the regulated compressor frequency, then the temperature of the indoor coil is obtained again, and the obtained temperature of the indoor coil is compared with a second preset temperature;
if the temperature of the indoor coil pipe obtained again is not lower than the second preset temperature, the electric auxiliary heat is turned off;
wherein the first preset temperature is lower than the second preset temperature.
According to the control method for improving the heating comfort of the air conditioner, after the air conditioner runs stably at the preset internal machine rotating speed and the preset compressor frequency, the temperature of an indoor coil cannot reach the first preset temperature due to the fact that the outdoor temperature is too low, the heating efficiency of the air conditioner can be improved by adjusting the internal machine rotating speed and the compressor frequency and starting electric auxiliary heat, the indoor temperature is improved, the running windshield is considered comprehensively, the internal machine rotating speed is adjusted reasonably, and the body feeling experience is improved; after the air conditioner runs for the preset time with the adjusted rotating speed of the inner machine and the adjusted frequency of the compressor, the indoor temperature is increased, if the temperature of the indoor coil pipe obtained again is not lower than the second preset temperature, the electric auxiliary heating is turned off, the heating efficiency of the air conditioner can be fully utilized, the overhigh indoor temperature is avoided, and the heating comfort of the air conditioner is improved.
Further, if the temperature of the indoor coil acquired again is lower than the second preset temperature and equal to or higher than the first preset temperature, the air conditioner is controlled to operate at the preset indoor unit rotating speed and the preset compressor frequency.
According to the control method of the embodiment, if the temperature of the indoor coil acquired again is lower than the second preset temperature and is equal to or higher than the first preset temperature, the air conditioner is controlled to operate at the preset inner machine rotating speed and the preset compressor frequency in order to keep the indoor temperature in the appropriate interval, meanwhile, in order to avoid the situation that the air conditioner cannot meet the indoor heating requirement when operating at the preset parameters, the electric auxiliary heating starting state is kept unchanged, and the indoor heating effect is guaranteed while the stable operation of the air conditioner is guaranteed.
Further, the method for adjusting the rotation speed of the internal machine and the frequency of the compressor according to the running windshield comprises the following steps:
regulating the rotation speed R of the internal machine to Rn+ΔrnAdjusting the frequency H of the compressor to Hn+E；
Wherein R isnPresetting the internal machine rotation speed, delta r, for the nth windshieldnThe corrected value of the rotating speed of the internal machine corresponding to the nth windshield is obtained; hnAnd presetting the compressor frequency for the nth windshield, wherein E is a corrected value of the compressor frequency.
According to the control method of the embodiment, the rotating speed of the internal machine and the frequency of the compressor are adjusted according to the running windshield, the heating effect can be improved, the phenomenon that the sound quality auditory sensation is influenced due to overlarge rotating speed adjustment amplitude of the internal machine is avoided, and the indoor comfort of the air conditioner during heating is comprehensively improved.
Further, the air conditioner running windshield comprises a first windshield, a second windshield, a third windshield and a fourth windshield, and the preset rotating speed of the internal machine meets the requirement of R1<R2<R3<R4；Δr1The value range of (A) is 50-80r/min, delta r2The value range of (1) is 30-50r/min, delta r3And Δ r4Preferably 0; the value range of E is 4-7 Hz.
According to the control method of the embodiment, the rotating speed correction value of the inner machine and the frequency correction value of the compressor under different running windshields of the air conditioner are selected through experiments, the condition that the sound quality auditory sensation is influenced due to overlarge rotating speed adjustment amplitude of the inner machine is avoided while the indoor heating requirement is met is guaranteed, and the indoor comfort of the air conditioner during heating is comprehensively improved.
Further, the first preset temperature is in a range of 35-39 ℃.
According to the control method of the embodiment, the temperature is 35-39 ℃ which is suitable for sensing the body temperature, the first preset temperature is 35-39 ℃, and the operation parameters of the air conditioner can be adjusted in time, so that discomfort of a human body caused by too low indoor temperature is avoided.
The invention also provides a control system for improving the heating comfort of the air conditioner, which comprises the following components:
the detection unit is used for acquiring the current running windshield and indoor coil temperature of the air conditioner after the air conditioner runs stably at the preset internal machine rotating speed and the preset compressor frequency;
the control unit is connected with the detection unit and used for comparing the temperature of the indoor coil pipe with a first preset temperature, adjusting the rotating speed of the indoor unit and the frequency of the compressor according to the running windshield if the temperature of the indoor coil pipe is lower than the first preset temperature, and starting electric auxiliary heating;
the detection unit is also used for obtaining the temperature of the indoor coil again after the air conditioner runs for the preset time at the regulated rotating speed of the internal machine and the regulated frequency of the compressor;
the control unit is also used for comparing the acquired indoor coil temperature with a second preset temperature, and if the acquired indoor coil temperature is not lower than the second preset temperature, the electric auxiliary heat is turned off;
wherein the first preset temperature is lower than the second preset temperature.
The control system for improving the heating comfort of the air conditioner comprises a detection unit and a control unit, wherein the detection unit detects the temperatures of an operation windshield and an indoor coil pipe after the air conditioner operates stably, and when the control unit judges that the temperature of the indoor coil pipe is lower than a first preset temperature, the control unit adjusts the rotating speed and the frequency of a compressor of the indoor unit according to the operation windshield and starts electric auxiliary heat, so that the heating efficiency of the air conditioner is improved, the indoor temperature is improved, the operation windshield is comprehensively considered, the rotating speed of the indoor unit can be reasonably adjusted, and the body feeling experience is improved; the detection unit detects the temperature of the indoor coil pipe again after the air conditioner runs for a preset time at the rotating speed of the adjusted indoor unit and the frequency of the compressor, and the controller turns off the electric auxiliary heat when judging that the temperature of the indoor coil pipe obtained again is not lower than the second preset temperature, so that the heating efficiency of the air conditioner can be fully utilized, the overhigh indoor temperature is avoided, and the heating comfort of the air conditioner is improved.
Further, the control unit is further configured to control the air conditioner to operate at a preset internal machine rotation speed and a preset compressor frequency if the re-acquired temperature of the indoor coil is lower than a second preset temperature and equal to or higher than a first preset temperature.
According to the control system of this embodiment, if the indoor coil pipe temperature that reacquires is less than the second and predetermines the temperature and be equal to or be higher than first predetermined temperature again, for keeping indoor temperature in this suitable interval, control air conditioner is with predetermineeing the internal machine rotational speed and predetermine the compressor frequency operation, can't satisfy the indoor demand of heating when avoiding the air conditioner to move with predetermined parameter simultaneously, keep the electricity to assist the heat state of opening unchangeably, when guaranteeing air conditioner steady operation, guarantee the indoor effect of heating.
Further, the control unit adjusts the internal machine rotation speed and the compressor frequency according to the running windshield, and comprises:
regulating the rotation speed R of the internal machine to Rn+ΔrnAdjusting the frequency H of the compressor to Hn+E；
Wherein R isnPresetting the internal machine rotation speed, delta r, for the nth windshieldnThe corrected value of the rotating speed of the internal machine corresponding to the nth windshield is obtained; hnAnd presetting the compressor frequency for the nth windshield, wherein E is a corrected value of the compressor frequency.
According to the control system of the embodiment, the control unit adjusts the inner machine rotating speed and the compressor frequency according to the operation windshield, the phenomenon that the sound quality auditory sensation is influenced due to the fact that the adjusting range of the inner machine rotating speed is too large when the heating effect is improved can be avoided, and the indoor comfort of the air conditioner during heating is comprehensively improved.
Further, the air conditioner running windshield comprises a first windshield, a second windshield, a third windshield and a fourth windshield, and the preset rotating speed of the internal machine meets the requirement of R1<R2<R3<R4；Δr1The value range of (A) is 50-80r/min, delta r2The value range of (1) is 30-50r/min, delta r3And Δ r4Preferably 0; the value range of E is 4-7 Hz.
According to the control system of this embodiment, select indoor quick-witted rotational speed corrected value and compressor frequency corrected value under the different operation windshields of air conditioner through the experiment, guarantee to avoid the too big influence tone quality audibility of indoor quick-witted rotational speed control range when satisfying indoor heating demand, indoor travelling comfort when synthesizing the promotion air conditioner heating.
Further, the first preset temperature is in a range of 35-39 ℃.
According to the control system of the embodiment, the temperature is 35-39 ℃ which is suitable for sensing the body temperature, the first preset temperature is 35-39 ℃, and the operation parameters of the air conditioner can be adjusted in time, so that discomfort of a human body caused by too low indoor temperature is avoided.
The invention also provides an air conditioner, which comprises the control system for improving the heating comfort of the air conditioner.
The air conditioner of the invention has the same technical effects as any one of the control systems for improving the heating comfort of the air conditioner.
Drawings
FIG. 1 is a flow chart of a control method for improving the heating comfort of an air conditioner;
fig. 2 is a schematic structural diagram of a control system for improving the heating comfort of an air conditioner.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Example one
Fig. 1 is a flowchart of a control method for improving the heating comfort of an air conditioner according to a preferred embodiment of the present invention. The embodiment provides a control method for improving the heating comfort of an air conditioner, which comprises the following steps:
after the air conditioner runs stably at a preset internal machine rotating speed and a preset compressor frequency, acquiring the current running windshield and the indoor coil temperature of the air conditioner, and comparing the indoor coil temperature with a first preset temperature;
if the temperature of the indoor coil pipe is lower than a first preset temperature, adjusting the rotating speed of the indoor unit and the frequency of the compressor according to the running windshield, and starting electric auxiliary heating;
after the air conditioner runs for a preset time at the adjusted internal machine rotating speed and the adjusted compressor frequency, the temperature of the indoor coil of the air conditioner is obtained again, and the obtained temperature of the indoor coil is compared with a second preset temperature;
if the temperature of the indoor coil pipe obtained again is not lower than the second preset temperature, the electric auxiliary heat is turned off;
wherein the first preset temperature is lower than the second preset temperature.
According to the control method for improving the heating comfort of the air conditioner, after the air conditioner runs stably at the preset inner machine rotating speed and the preset compressor frequency, the temperature of an indoor coil cannot reach the first preset temperature due to the fact that the outdoor temperature is too low, the heating efficiency of the air conditioner can be improved by adjusting the inner machine rotating speed and the compressor frequency and turning on electric auxiliary heat, the indoor temperature is improved, the running windshield is considered comprehensively, the inner machine rotating speed can be adjusted reasonably, and the body feeling experience is improved; after the air conditioner runs for the preset time with the adjusted rotating speed of the inner machine and the adjusted frequency of the compressor, the indoor temperature is increased, if the temperature of the indoor coil pipe obtained again is not lower than the second preset temperature, the electric auxiliary heating is turned off, the heating efficiency of the air conditioner can be fully utilized, the overhigh indoor temperature is avoided, and the heating comfort of the air conditioner is improved.
In this embodiment, if the temperature of the indoor coil acquired again is lower than the second preset temperature and equal to or higher than the first preset temperature, the air conditioner is controlled to operate at the preset indoor unit rotation speed and the preset compressor frequency.
According to the control method of the embodiment, if the temperature of the indoor coil acquired again is lower than the second preset temperature and is equal to or higher than the first preset temperature, the air conditioner is controlled to operate at the preset inner machine rotating speed and the preset compressor frequency in order to keep the indoor temperature in the appropriate interval, meanwhile, in order to avoid the situation that the air conditioner cannot meet the indoor heating requirement when operating at the preset parameters, the electric auxiliary heating starting state is kept unchanged, and the indoor heating effect is guaranteed while the stable operation of the air conditioner is guaranteed.
In this embodiment, adjust internal machine rotational speed and compressor frequency according to the operation windshield includes:
regulating the rotation speed R of the internal machine to Rn+ΔrnAdjusting the frequency H of the compressor to Hn+E；
Wherein R isnPresetting the internal machine rotation speed, delta r, for the nth windshieldnThe corrected value of the rotating speed of the internal machine corresponding to the nth windshield is obtained; hnAnd presetting the compressor frequency for the nth windshield, wherein E is a corrected value of the compressor frequency.
According to the control method of the embodiment, the rotating speed of the internal machine and the frequency of the compressor are adjusted according to the running windshield, the heating effect can be improved, the phenomenon that the sound quality auditory sensation is influenced due to overlarge rotating speed adjustment amplitude of the internal machine is avoided, and the indoor comfort of the air conditioner during heating is comprehensively improved.
As shown in fig. 1, the control method for improving heating comfort of an air conditioner according to this embodiment relates to air conditioner operation parameters including an indoor coil temperature T, an indoor unit rotation speed R, a compressor frequency H, a first preset temperature D, and a preset time T. In this embodiment, the air-conditioning operation damper includes a first damper, a second damper,A third windshield and a fourth windshield, and the preset internal machine rotating speed meets R1<R2<R3<R4. The execution conditions in the control method of the present embodiment include:
condition 1: a first damper and T < D;
condition 2: a second windshield and T < D;
condition 3: a third windshield and T < D;
condition 4: a fourth windshield and T is less than D;
condition 5: regulating the rotation speed R of the internal machine to R1+Δr1Adjusting the frequency H of the compressor to H1+E；
Condition 6: regulating the rotation speed R of the internal machine to R2+Δr2Adjusting the frequency H of the compressor to H2+E；
Condition 7: adjusting compressor frequency H ═ H3+E；
Condition 8: adjusting compressor frequency H ═ H4+E；
Condition 9: turning off the electric auxiliary heater;
condition 10: turning on the electric auxiliary heater;
condition 11: and (5) normally running.
As shown in fig. 1, in the control method for improving the heating comfort of the air conditioner in this embodiment, after the air conditioner operates for 15min at the preset internal machine rotation speed and the preset compressor frequency, the current operating windshield and the indoor coil temperature T of the air conditioner are obtained, and the indoor coil temperature T is compared with a first preset temperature D;
if T is larger than or equal to D, no matter the air conditioner runs on any windshield, executing the condition 11: and (5) normally running. The normal operation specifically means that the air conditioner still operates at the preset internal machine rotating speed and the preset compressor frequency without adjusting the air conditioner parameters.
If condition 1 is satisfied: the air conditioner is currently operated with a first windshield and T<D, execution condition 5: regulating the rotation speed R of the internal machine to R1+Δr1Adjusting the frequency H of the compressor to H1+ E; and the condition 10 is executed: turning on the electric auxiliary heater;
after the air conditioner runs for the preset time T at the regulated internal machine rotating speed and the regulated compressor frequency, the temperature T 'of the indoor coil pipe of the air conditioner is obtained again, and the temperature T' is measuredThe indoor coil temperature T' and the second preset temperature D obtained again1Comparing;
if the temperature T' of the indoor coil pipe acquired again is more than or equal to D1Execution condition 9: turning off the electric auxiliary heater;
if the acquired indoor coil temperature T' meets the condition that D is less than or equal to T ″ < D1Execution condition 11: normal operation is carried out; at the moment, the electric auxiliary heat is kept on, and the air conditioner is started at the preset internal machine rotating speed R1And preset compressor frequency H1And (5) operating.
If condition 2 is satisfied: the air conditioner is currently operated with the second windshield and T<D, execution condition 6: regulating the rotation speed R of the internal machine to R2+Δr2Adjusting the frequency H of the compressor to H2+ E; and the condition 10 is executed: turning on the electric auxiliary heater;
the air conditioner obtains the indoor coil temperature T 'of the air conditioner again after running for the preset time T at the regulated internal machine rotating speed and the regulated compressor frequency, and obtains the indoor coil temperature T' and the second preset temperature D again2Comparing;
if the temperature T' of the indoor coil pipe acquired again is more than or equal to D2Execution condition 9: turning off the electric auxiliary heater;
if the acquired indoor coil temperature T' meets the condition that D is less than or equal to T ″ < D2Execution condition 11: normal operation, keeping the electric auxiliary heating on at the moment, and enabling the air conditioner to rotate at a preset internal machine rotating speed R2And preset compressor frequency H2And (5) operating.
If condition 3 is satisfied: the air conditioner is currently operated with the third windshield and T<D, execution condition 7: adjusting compressor frequency H ═ H3+ E; and the condition 10 is executed: turning on the electric auxiliary heater;
the air conditioner operates for a preset time T at the adjusted compressor frequency, then the indoor coil temperature T 'of the air conditioner is obtained again, and the obtained indoor coil temperature T' and a second preset temperature D are obtained again3Comparing;
if the temperature T' of the indoor coil pipe acquired again is more than or equal to D3Execution condition 9: turning off the electric auxiliary heater;
if the acquired indoor coil temperature T' meets the condition that D is less than or equal to T ″ < D3Execution condition 11: normal transportWhen the electric auxiliary heat is kept on, the air conditioner is started at the preset internal machine rotating speed R3And preset compressor frequency H3And (5) operating.
If condition 4 is satisfied: the air conditioner is currently operated with a first windshield and T<D, execution condition 5: adjusting compressor frequency H ═ H4+ E; and the condition 10 is executed: turning on the electric auxiliary heater;
the air conditioner obtains the indoor coil temperature T 'of the air conditioner again after running for the preset time T at the regulated internal machine rotating speed and the regulated compressor frequency, and obtains the indoor coil temperature T' and the second preset temperature D again4Comparing;
if the temperature T' of the indoor coil pipe acquired again is more than or equal to D4Execution condition 9: turning off the electric auxiliary heater;
if the acquired indoor coil temperature T' meets the condition that D is less than or equal to T ″ < D4Execution condition 11: normal operation, keeping the electric auxiliary heating on at the moment, and enabling the air conditioner to rotate at a preset internal machine rotating speed R4And preset compressor frequency H4And (5) operating.
In this embodiment, the first preset temperature D ranges from 35 to 39 ℃. Further preferably, the first preset temperature D is 37 ℃. The temperature of 37 ℃ is the temperature suitable for body temperature sensing, the first preset temperature D is 37 ℃, the air conditioner operation parameters can be adjusted in time, and discomfort of a human body caused by too low indoor temperature is avoided.
In this embodiment, the second preset temperature D corresponding to the first damper is set in consideration of the heat resistance and reliability of the air conditioner component2Preferably 48 ℃, and a second preset temperature D corresponding to the second windshield2Preferably 50 ℃, and a second preset temperature D corresponding to a third windshield2Preferably 52 deg.c, and a second preset temperature D corresponding to the fourth damper2Preferably 54 deg.c.
In this embodiment, the preset time is preferably 10 min.
In this embodiment, the value range of the compressor frequency correction value E is 4 to 7 Hz. Preferably, the compressor frequency correction value E is 5 Hz.
Internal machine rotating speed correction value delta r corresponding to first windshield1Preferably 50-80 r/min. Through experimental simulation, the air conditioner of the embodiment is arranged at the firstThe windshield is operated, the frequency correction value E of the compressor is selected to be 5Hz, and the rotating speed correction value delta r of the internal machine is1At 50r/min, the heating air supply distance can be increased by 0.5m, and at 80r/min, the sound quality and auditory sensation are deteriorated, so that the rotation speed correction value delta r of the selected machine is1Is 50-80 r/min.
The corresponding internal machine rotating speed correction value delta r of the second windshield2Preferably 30-50 r/min. Through experimental simulation, the air conditioner of the embodiment runs on the second windshield, the frequency correction value E of the compressor is 5Hz, and the rotating speed correction value delta r of the internal machine2At 30r/min, the heating air supply distance can be increased by 0.5m, and at 50r/min, the sound quality and auditory sensation are deteriorated, so that the rotation speed correction value delta r of the selected machine is2Is 30-50 r/min.
Corresponding internal machine rotating speed correction value delta r of third windshield and fourth windshield3And Δ r4Preferably 0, when the air conditioner runs by using the third windshield and the fourth windshield, the rotating speed of the internal machine is higher, and the rotating speed of the internal machine is not adjusted in order to avoid overlarge running noise of the internal machine.
Example two
Fig. 2 is a schematic structural diagram of a control system for improving the heating comfort of an air conditioner according to a preferred embodiment of the present invention. The embodiment provides a control system for promoting air conditioner heating comfort, includes:
the detection unit is used for acquiring the current running windshield and indoor coil temperature of the air conditioner after the air conditioner runs stably at the preset internal machine rotating speed and the preset compressor frequency;
the control unit is connected with the detection unit and used for comparing the temperature of the indoor coil pipe with a first preset temperature, adjusting the rotating speed of the indoor unit and the frequency of the compressor according to the running windshield if the temperature of the indoor coil pipe is lower than the first preset temperature, and starting electric auxiliary heating;
the detection unit is also used for obtaining the temperature of the indoor coil pipe of the air conditioner again after the air conditioner runs for the preset time at the regulated rotating speed of the internal machine and the regulated frequency of the compressor;
the control unit is also used for comparing the acquired indoor coil temperature with a second preset temperature, and if the acquired indoor coil temperature is not lower than the second preset temperature, the electric auxiliary heat is turned off;
wherein the first preset temperature is lower than the second preset temperature.
The control system for improving the heating comfort of the air conditioner comprises a detection unit and a control unit, wherein the detection unit detects the temperature of an indoor coil pipe after the air conditioner operates stably, and when the control unit judges that the temperature of the indoor coil pipe is lower than a first preset temperature, the control unit adjusts the rotating speed and the compressor frequency of the indoor unit and starts electric auxiliary heat, so that the heating efficiency of the air conditioner is increased, the indoor temperature is improved, an operation windshield is comprehensively considered, the rotating speed of the indoor unit can be reasonably adjusted, and the somatosensory sound experience is improved; the detection unit detects the temperature of the indoor coil pipe again after the air conditioner runs for a preset time at the rotating speed of the adjusted indoor unit and the frequency of the compressor, and the controller turns off the electric auxiliary heat when judging that the temperature of the indoor coil pipe obtained again is not lower than the second preset temperature, so that the heating efficiency of the air conditioner can be fully utilized, the overhigh indoor temperature is avoided, and the heating comfort of the air conditioner is improved.
In this embodiment, the control unit is further configured to control the air conditioner to operate at a preset internal machine rotation speed and a preset compressor frequency if the re-acquired temperature of the indoor coil is lower than the second preset temperature and equal to or higher than the first preset temperature.
According to the control system of this embodiment, if the indoor coil pipe temperature that reacquires is less than the second and predetermines the temperature and be equal to or be higher than first predetermined temperature again, for keeping indoor temperature in this suitable interval, control air conditioner is with predetermineeing the internal machine rotational speed and predetermine the compressor frequency operation, can't satisfy the indoor demand of heating when avoiding the air conditioner to move with predetermined parameter simultaneously, keep the electricity to assist the heat state of opening unchangeably, when guaranteeing air conditioner steady operation, guarantee the indoor effect of heating.
In this embodiment, the control unit adjusts the internal machine rotation speed and the compressor frequency according to the operation windshield, and includes:
regulating the rotation speed R of the internal machine to Rn+ΔrnAdjusting the frequency H of the compressor to Hn+E；
Wherein R isnPresetting the internal machine rotation speed, delta r, for the nth windshieldnThe corrected value of the rotating speed of the internal machine corresponding to the nth windshield is obtained; hnAnd presetting the compressor frequency for the nth windshield, wherein E is a corrected value of the compressor frequency.
According to the control system of the embodiment, the control unit adjusts the inner machine rotating speed and the compressor frequency according to the operation windshield, the phenomenon that the sound quality auditory sensation is influenced due to the fact that the adjusting range of the inner machine rotating speed is too large when the heating effect is improved can be avoided, and the indoor comfort of the air conditioner during heating is comprehensively improved.
In this embodiment, the air conditioner operation windshield includes a first windshield, a second windshield, a third windshield and a fourth windshield, and the preset internal machine rotation speed satisfies R1<R2<R3<R4；Δr1Preferably 50-80r/min,. DELTA.r2Preferably 30-50r/min,. DELTA.r3And Δ r4Preferably 0; e is preferably 4 to 7Hz, and further, E is preferably 5 Hz.
According to the control system of this embodiment, select indoor quick-witted rotational speed corrected value and compressor frequency corrected value under the different operation windshields of air conditioner through the experiment, guarantee to avoid the too big influence tone quality audibility of indoor quick-witted rotational speed control range when satisfying indoor heating demand, indoor travelling comfort when synthesizing the promotion air conditioner heating.
In this embodiment, the preset time is preferably 10 min.
In this embodiment, the first preset temperature D ranges from 35 to 39 ℃. Preferably, the first preset temperature D is 37 ℃. The temperature of 37 ℃ is the temperature suitable for body temperature sensing, the first preset temperature D is 37 ℃, the air conditioner operation parameters can be adjusted in time, and discomfort of a human body caused by too low indoor temperature is avoided.
In this embodiment, the second preset temperature D corresponding to the first damper is set in consideration of the heat resistance and reliability of the air conditioner component2Preferably 48 ℃, and a second preset temperature D corresponding to the second windshield2Preferably 50 ℃, and a second preset temperature D corresponding to a third windshield2Preferably 52 deg.c, and a second preset temperature D corresponding to the fourth damper2Preferably 54 deg.c.
The first embodiment refers to a function implementation process of the control system for improving the heating comfort of the air conditioner, which is not described herein again.
EXAMPLE III
The embodiment provides an air conditioner, which comprises the control system for improving the heating comfort of the air conditioner. The specific structure of the control system for improving the heating comfort of the air conditioner is shown in the second embodiment, and the function implementation process of the control system for improving the heating comfort of the air conditioner is shown in the first embodiment, which is not described herein again.
The air conditioner comprises a control system for improving the heating comfort of the air conditioner, wherein the detection unit detects the temperature of an indoor coil pipe after the air conditioner operates stably, and when the control unit judges that the temperature of the indoor coil pipe is lower than a first preset temperature, the control unit adjusts the rotating speed and the frequency of a compressor of the indoor unit and starts electric auxiliary heating, so that the heating efficiency of the air conditioner is improved, the indoor temperature is improved, an operation windshield is considered comprehensively, the rotating speed of the indoor unit can be adjusted reasonably, and the body feeling and sound feeling experience are improved; the detection unit detects the temperature of the indoor coil pipe again after the air conditioner runs for a preset time at the rotating speed of the adjusted indoor unit and the frequency of the compressor, and the controller turns off the electric auxiliary heat when judging that the temperature of the indoor coil pipe obtained again is not lower than the second preset temperature, so that the heating efficiency of the air conditioner can be fully utilized, the overhigh indoor temperature is avoided, and the heating comfort of the air conditioner is improved.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (9)

1. A control method for improving heating comfort of an air conditioner is characterized by comprising the following steps:
after the air conditioner runs stably at a preset internal machine rotating speed and a preset compressor frequency, acquiring the current running windshield and the indoor coil temperature of the air conditioner, and comparing the indoor coil temperature with a first preset temperature;
if the temperature of the indoor coil pipe is lower than a first preset temperature, adjusting the rotating speed of the indoor unit and the frequency of the compressor according to the running windshield, and starting electric auxiliary heating;
the air conditioner operates for a preset time at the regulated internal machine rotating speed and the regulated compressor frequency, then the temperature of the indoor coil is obtained again, and the obtained temperature of the indoor coil is compared with a second preset temperature;
if the temperature of the indoor coil pipe obtained again is not lower than the second preset temperature, the electric auxiliary heat is turned off;
wherein the first preset temperature is lower than the second preset temperature;
wherein, adjust interior quick-witted rotational speed and compressor frequency according to the operation windshield, include:
regulating the rotation speed R of the internal machine to Rn+ΔrnAdjusting the frequency H of the compressor to Hn+ E; wherein R isnPresetting the internal machine rotation speed, delta r, for the nth windshieldnThe corrected value of the rotating speed of the internal machine corresponding to the nth windshield is obtained; hnAnd presetting the compressor frequency for the nth windshield, wherein E is a corrected value of the compressor frequency.
2. The control method for improving heating comfort of an air conditioner according to claim 1,
and if the temperature of the indoor coil pipe obtained again is lower than the second preset temperature and is equal to or higher than the first preset temperature, controlling the air conditioner to operate at the preset internal machine rotating speed and the preset compressor frequency.
3. The control method for improving heating comfort of an air conditioner according to claim 1,
the air conditioner running windshield comprises a first windshield, a second windshield, a third windshield and a fourth windshield, and the preset rotating speed of the internal machine meets R1<R2<R3<R4；
Δr1The value range of (A) is 50-80r/min, delta r2The value range of (1) is 30-50r/min, delta r3And Δ r4Is 0; the value range of E is 4-7 Hz.
4. The control method for improving the heating comfort of an air conditioner according to any one of claims 1 to 3,
the value range of the first preset temperature is 35-39 ℃.
5. A control system for improving heating comfort of an air conditioner is characterized by comprising:
the detection unit is used for acquiring the current running windshield and indoor coil temperature of the air conditioner after the air conditioner runs stably at the preset internal machine rotating speed and the preset compressor frequency;
the control unit is connected with the detection unit and used for comparing the temperature of the indoor coil pipe with a first preset temperature, adjusting the rotating speed of the indoor unit and the frequency of the compressor according to the running windshield if the temperature of the indoor coil pipe is lower than the first preset temperature, and starting electric auxiliary heating;
the detection unit is also used for acquiring the temperature of the indoor coil again after the air conditioner runs for a preset time at the adjusted rotating speed of the internal machine and the adjusted frequency of the compressor;
the control unit is further used for comparing the acquired indoor coil temperature with a second preset temperature, and if the acquired indoor coil temperature is not lower than the second preset temperature, the electric auxiliary heating is turned off;
wherein the first preset temperature is lower than the second preset temperature;
wherein, the control unit adjusts interior machine rotational speed and compressor frequency according to the operation windshield, includes: regulating the rotation speed R of the internal machine to Rn+ΔrnAdjusting the frequency H of the compressor to Hn+ E; wherein R isnPresetting the internal machine rotation speed, delta r, for the nth windshieldnThe corrected value of the rotating speed of the internal machine corresponding to the nth windshield is obtained; hnAnd presetting the compressor frequency for the nth windshield, wherein E is a corrected value of the compressor frequency.
6. The control system for improving heating comfort of an air conditioner according to claim 5,
the control unit is further used for controlling the air conditioner to operate at a preset internal machine rotating speed and a preset compressor frequency if the temperature of the indoor coil acquired again is lower than a second preset temperature and is equal to or higher than a first preset temperature.
7. The control system for improving heating comfort of an air conditioner according to claim 5,
the air conditioner running windshield comprises a first windshield, a second windshield, a third windshield and a fourth windshield, and the preset rotating speed of the internal machine meets R1<R2<R3<R4；
Δr1The value range of (A) is 50-80r/min, delta r2The value range of (1) is 30-50r/min, delta r3And Δ r4Is 0; the value range of E is 4-7 Hz.
8. The control system for improving heating comfort of an air conditioner according to any one of claims 5 to 7,
the value range of the first preset temperature is 35-39 ℃.
9. An air conditioner, characterized in that, comprising the control system for improving the heating comfort of the air conditioner of any one of claims 5 to 8.
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