CN114427731B - Fan rotating speed control method and device of air conditioner and air conditioner - Google Patents

Fan rotating speed control method and device of air conditioner and air conditioner Download PDF

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Publication number
CN114427731B
CN114427731B CN202210078004.6A CN202210078004A CN114427731B CN 114427731 B CN114427731 B CN 114427731B CN 202210078004 A CN202210078004 A CN 202210078004A CN 114427731 B CN114427731 B CN 114427731B
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rotating speed
fan
speed
adjusting
temperature
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CN114427731A (en
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秦宪
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
    • F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • 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)
  • Thermal Sciences (AREA)
  • Signal Processing (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a fan rotating speed control method and device of an air conditioner and the air conditioner, wherein the method comprises the following steps: acquiring indoor environment temperature, outdoor environment temperature, user set temperature and compressor exhaust temperature; according to a first difference value between the indoor environment temperature and the user set temperature, adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan; and adjusting the rotating speed of the outdoor fan according to a second difference value between the exhaust temperature of the compressor and the outdoor environment temperature. The embodiment of the invention can automatically adjust the wind speed of the fan, the adjusting process considers the influence on the comfort of a user and the running reliability of the air conditioner, and the comfort experience of the user and the running reliability level of the air conditioner are improved.

Description

Fan rotating speed control method and device of air conditioner and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a fan rotating speed control method and device of an air conditioner and the air conditioner.
Background
Along with the improvement of living standard and technological level, the comfort requirement of people on the air conditioner is also higher and higher. The conventional air conditioner is generally provided with a plurality of wind speed gears to enable a user to select automatically, so that an indoor fan of the air conditioner runs at a certain rotating speed constantly, the air quantity can be kept fixed, the actual cold and hot feeling of a human body on an indoor environment is neglected, and the user comfort experience is insufficient.
Disclosure of Invention
The invention solves the problem of insufficient user comfort experience in the conventional control mode of constant rotating speed of the indoor fan.
In order to solve the above problems, the present invention provides a fan rotation speed control method of an air conditioner, the method comprising: acquiring indoor environment temperature, outdoor environment temperature, user set temperature and compressor exhaust temperature; according to a first difference value between the indoor environment temperature and the user set temperature, adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan; the rotating speed of the indoor fan and the rotating speed of the outdoor fan are positively correlated with the first difference value; and adjusting the rotating speed of the outdoor fan according to a second difference value between the exhaust temperature of the compressor and the outdoor environment temperature, wherein the rotating speed of the outdoor fan is positively related to the second difference value.
According to the embodiment of the invention, the rotating speed of the indoor fan and the rotating speed of the outdoor fan can be adjusted according to the first difference value between the indoor environment temperature and the user set temperature, and the rotating speed of the outdoor fan is adjusted according to the second difference value between the exhaust temperature of the compressor and the outdoor environment temperature, so that the wind speed of the fan is automatically adjusted, the influence on the comfort of the user and the running reliability of the air conditioner is considered in the adjusting process, and the comfort experience of the user and the running reliability level of the air conditioner are improved.
Optionally, the adjusting the indoor fan rotation speed and the outdoor fan rotation speed according to the first difference between the indoor environment temperature and the user set temperature includes: if the first difference value is greater than or equal to a preset threshold value, the rotating speed of the indoor fan and the rotating speed of the outdoor fan are increased; and if the first difference value is smaller than the preset threshold value, reducing the rotating speed of the indoor fan and the rotating speed of the outdoor fan.
Based on the heat exchange principle, the embodiment of the invention can improve the heat exchange efficiency by improving the rotation speed of the indoor fan and the rotation speed of the outdoor fan, thereby improving the capacity of the air conditioner, and conversely, reducing the capacity of the air conditioner.
Optionally, the adjusting the indoor fan rotation speed and the outdoor fan rotation speed according to the first difference between the indoor environment temperature and the user set temperature includes: if the first difference value is greater than or equal to a first threshold value, regulating the rotation speed of the indoor fan and the rotation speed of the outdoor fan to be the maximum rotation speeds; if the first difference value is smaller than the first threshold value and larger than or equal to the second threshold value, continuously adjusting the indoor fan speed to be the first speed after continuously operating for a first time period at the maximum speed, and continuously adjusting the outdoor fan speed to be the second speed after continuously operating for a second time period at the maximum speed; the first rotating speed and the second rotating speed are both smaller than the maximum rotating speed; if the first difference value is smaller than the second threshold value and larger than or equal to a third threshold value, adjusting the rotating speed of the indoor fan to be a third rotating speed, and adjusting the rotating speed of the outdoor fan to be a fourth rotating speed; the third rotational speed is less than the first rotational speed, and the fourth rotational speed is less than the second rotational speed; if the first difference value is smaller than the third threshold value and larger than or equal to a fourth threshold value, adjusting the rotating speed of the indoor fan to be a fifth rotating speed, adjusting the rotating speed of the outdoor fan to be zero, and controlling the compressor to stop; the fifth rotational speed is less than the third rotational speed; and if the first difference value is smaller than the fourth threshold value, adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan to be zero, and controlling the compressor to stop.
In the embodiment of the invention, in order to improve the accuracy of adjusting the rotating speed based on the first difference value, the first difference value can be divided into a plurality of temperature intervals, and different adjusting logics are adopted in each temperature interval, so that the user comfort experience is improved.
Optionally, the method further comprises: if the change value of the first difference value is larger than a preset change threshold value due to the change of the user set temperature, the step of adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan is immediately executed; and if the change value of the first difference value caused by the change of the user set temperature is smaller than or equal to the preset change threshold value, controlling the rotating speed of the indoor fan to continue to operate for a second period of time at the current rotating speed, and then executing the step of adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan.
In the embodiment of the invention, if the change value is larger, the user wish is urgent, and the adjustment logic needs to be executed immediately by a new first difference value; if the change value is small, the user is not urgent although desiring to do so, the user can continue to operate for a certain time at the current rotating speed and then execute the adjustment logic with a new first difference value, so that the condition that the user feels suddenly and suddenly due to the sudden temperature change is avoided.
Optionally, the adjusting the outdoor fan speed according to the second difference between the compressor discharge temperature and the outdoor ambient temperature includes: if the second difference value is greater than or equal to a fifth threshold value and the compressor discharge temperature is greater than or equal to a sixth threshold value, regulating the rotation speed of the outdoor fan to be the maximum rotation speed; and if the second difference value is greater than or equal to the fifth threshold value and the exhaust temperature of the compressor is greater than or equal to the sixth threshold value after the third duration, regulating the rotating speed of the outdoor fan to be zero and controlling the compressor to stop.
In the embodiment of the invention, in order to improve the reliability of adjusting the rotation speed based on the second difference value, the second difference value can be divided into a plurality of temperature intervals, and different adjusting logics are adopted in each temperature interval, so that the operation reliability of the air conditioner is improved.
Optionally, the adjusting the outdoor fan speed according to the second difference between the compressor discharge temperature and the outdoor ambient temperature includes: if the second difference value is smaller than the fifth threshold value and the compressor discharge temperature is smaller than the sixth threshold value, adjusting the rotating speed of the outdoor fan to be a sixth rotating speed; the sixth rotational speed is less than the maximum rotational speed.
In the embodiment of the invention, in order to improve the reliability of adjusting the rotation speed based on the second difference value, the second difference value can be divided into a plurality of temperature intervals, and different adjusting logics are adopted in each temperature interval, so that the operation reliability of the air conditioner is improved.
Optionally, the value range of the preset change threshold is [2,3] °c.
Optionally, the value range of the fifth threshold is [65, 75] DEG C, or the value range of the sixth threshold is [105, 115] DEG C.
The embodiment of the invention provides a specific value orientation of each threshold value, and the fan rotating speed is controlled based on the specific value orientation, so that the user comfort and the operation reliability of the air conditioner can be improved.
The invention provides a fan rotating speed control device of an air conditioner, which comprises: the temperature acquisition module is used for acquiring indoor environment temperature, outdoor environment temperature, user set temperature and compressor exhaust temperature; the indoor fan adjusting module is used for adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan according to the first difference value between the indoor environment temperature and the user set temperature; the rotating speed of the indoor fan and the rotating speed of the outdoor fan are positively correlated with the first difference value; and the outdoor fan adjusting module is used for adjusting the rotating speed of the outdoor fan according to a second difference value between the exhaust temperature of the compressor and the outdoor environment temperature, and the rotating speed of the outdoor fan is positively related to the second difference value.
The embodiment of the invention provides an air conditioner, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium stores a computer program, and the computer program realizes the method when being read and run by the processor.
Embodiments of the present invention provide a computer readable storage medium storing a computer program which, when read and executed by a processor, implements the above-described method.
The fan rotating speed control device of the air conditioner, the air conditioner and the computer readable storage medium can achieve the same technical effect as the fan rotating speed control method of the air conditioner.
Drawings
FIG. 1 is a schematic flow chart of a fan speed control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a fan rotation speed control device of an air conditioner according to an embodiment of the present invention.
Reference numerals illustrate:
201-a temperature acquisition module; 202-an indoor fan adjusting module; 203-an outdoor fan adjustment module.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
The air conditioner in the embodiment of the invention is at least provided with 3 temperature sensing devices for respectively detecting the indoor environment temperature, the outdoor environment temperature and the exhaust temperature of the compressor.
Optionally, the indoor environment temperature sensing device is installed at the air inlet of the indoor unit, negative pressure is generated when the indoor unit fan rotates, indoor air is sucked into the air conditioner air duct immediately, and when the indoor air flows into the air conditioner air duct, the indoor air flows through the temperature sensing device, so that the actual temperature is detected; similarly, the outdoor temperature sensing device should be installed at the air inlet of the outdoor unit; the outdoor unit exhaust temperature sensing device is installed on the exhaust pipe of the air conditioner and needs to be as close to the exhaust port of the compressor as possible to detect the most realistic exhaust temperature.
According to the embodiment of the invention, through the detected indoor environment temperature and the self-set running temperature of the air conditioner, the rotating speed of the indoor fan and the rotating speed of the outdoor fan of the air conditioner meeting the comfort level of a user are adjusted in real time; and calculating the difference between the outdoor exhaust temperature and the outdoor ambient temperature by detecting the outdoor ambient temperature and the outdoor unit exhaust temperature, deducing the running load state of the air conditioner, and then adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan which meet the comfort level of the air conditioner in real time according to the load state. The method can improve the use comfort of the air conditioner, improve the operation reliability of the air conditioner and improve the use satisfaction of customers.
Fig. 1 is a schematic flow chart of a fan speed control method of an air conditioner according to an embodiment of the present invention, the method includes the following steps:
s102, acquiring indoor environment temperature, outdoor environment temperature, user set temperature and compressor exhaust temperature.
The temperature acquiring time is the same, so that the current indoor thermal environment condition and the load state of the air conditioner can be accurately determined.
S104, adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan according to the first difference value between the indoor environment temperature and the user set temperature.
Wherein, indoor fan rotational speed and outdoor fan rotational speed are all with first difference positive correlation. The larger the difference between the indoor environment temperature and the user set temperature is, the more the current indoor temperature is far from the user demand, and the capability of the air conditioner needs to be improved so as to meet the user demand as soon as possible. Based on the heat exchange principle, the heat exchange efficiency can be improved by improving the rotation speed of the indoor fan and the rotation speed of the outdoor fan, so that the capacity of the air conditioner is improved, and conversely, the capacity of the air conditioner is reduced.
Optionally, if the first difference is greater than or equal to a preset threshold, increasing the rotation speed of the indoor fan and the rotation speed of the outdoor fan; and if the first difference value is smaller than the preset threshold value, reducing the rotating speed of the indoor fan and the rotating speed of the outdoor fan.
When the difference between the user set temperature and the indoor environment temperature is large, the running rotating speed of the indoor fan is increased to increase the indoor air quantity, and the running rotating speed of the outdoor fan is increased to increase the outdoor air quantity. When the difference between the user set temperature and the indoor environment temperature is small, the running rotating speed of the indoor fan is reduced so as to reduce the air quantity on the indoor side, and the running rotating speed of the outdoor fan is reduced so as to reduce the air quantity on the outdoor side.
Taking refrigeration operation as an example, if the indoor environment temperature is higher than the user set temperature and the difference value of the indoor environment temperature and the user set temperature is greater than a preset threshold value, then larger refrigeration capacity needs to be output, and the rotation speed of the indoor fan and the rotation speed of the outdoor fan need to be correspondingly improved; taking heating operation as an example, if the indoor environment temperature is lower than the user set temperature and the difference value of the indoor environment temperature and the user set temperature is greater than the preset threshold value, then larger heating amount needs to be output, and accordingly the indoor fan rotating speed and the outdoor fan rotating speed also need to be improved. Conversely, if the difference value of the two is smaller than the preset threshold value, the current indoor environment temperature is indicated to be close to the user demand, and at the moment, the indoor fan rotating speed and the outdoor fan rotating speed are properly reduced, so that the indoor environment is prevented from being supercooled and overheated, and the use comfort of a user is improved.
And S106, adjusting the rotating speed of the outdoor fan according to a second difference value between the exhaust temperature of the compressor and the outdoor environment temperature.
The second difference value between the exhaust temperature of the compressor and the outdoor environment temperature can be used for deducing the running load state of the air conditioner, if the outdoor environment temperature is too high or the outdoor unit is not smooth in air inlet and other severe working conditions exist, the heat exchange of the outdoor unit is poor, so that the service life of the compressor can be damaged due to too high pressure of the air conditioner, and the reliability of the air conditioner is poor. In the above-mentioned case, there is a reliability hidden danger in long-time operation, and the exhaust temperature needs to be reduced, and the operation speed of the outdoor fan needs to be increased at this time, based on this, in this embodiment, reliability control is also provided on the basis of the comfort adjustment control in S104. Specifically, the rotating speed of the outdoor fan can be adjusted according to the load state, so that the comfort requirement of the air conditioner is met, and the running reliability of the air conditioner is improved.
The rotation speed of the outdoor fan is positively correlated with a second difference value, and the larger the second difference value is, the larger the rotation speed of the outdoor fan is regulated.
According to the fan rotating speed control method of the air conditioner, the rotating speed of the indoor fan and the rotating speed of the outdoor fan can be adjusted according to the first difference value between the indoor environment temperature and the user set temperature, and the rotating speed of the outdoor fan is adjusted according to the second difference value between the exhaust temperature of the compressor and the outdoor environment temperature, so that the wind speed of the fan is automatically adjusted, influences on user comfort and operation reliability of the air conditioner are considered in the adjusting process, and user comfort experience and operation reliability level of the air conditioner are improved.
In order to improve the accuracy of adjusting the rotation speed based on the first difference, the first difference may be divided into a plurality of temperature intervals, and each temperature interval adopts different adjusting logic. The specific control logic is as follows:
(1) And if the first difference value is greater than or equal to the first threshold value, regulating the rotation speed of the indoor fan and the rotation speed of the outdoor fan to be the maximum rotation speeds. In this case, the air conditioner needs to operate with high power, so that the operation speeds of the indoor fan and the outdoor fan are maximized, and the indoor air quantity and the outdoor air quantity are maximized.
(2) If the first difference value is smaller than the first threshold value and larger than or equal to the second threshold value, the rotation speed of the indoor fan is adjusted to be the maximum rotation speed for a first duration, then the rotation speed of the indoor fan is continuously adjusted to be the first rotation speed, and the rotation speed of the outdoor fan is adjusted to be the maximum rotation speed for a second duration, then the rotation speed of the outdoor fan is continuously adjusted to be the second rotation speed.
Wherein, the first rotating speed and the second rotating speed are smaller than the maximum rotating speed. The temperature interval from the second threshold value to the first threshold value may be further subdivided into a plurality of temperature sub-intervals, where the first duration, the first rotation speed, the second duration, and the second rotation speed corresponding to each temperature sub-interval are different. For example, the temperature sub-interval corresponds to a larger temperature value, and one or more of the corresponding first duration, first rotation speed, second duration, or second rotation speed is larger than the above-mentioned parameter of the temperature sub-interval with a smaller temperature value.
By dividing the adjustment process into two phases: the maximum rotating speed operation stage and the rotating speed reduction operation stage can heat or refrigerate as quickly as possible under the premise of ensuring the strong operation of the air conditioner, so that the temperature reaches a certain comfort level as soon as possible, and then heats or refrigerates at a relatively slow speed, so that the temperature changes steadily until the requirement of a user, the abrupt change of the temperature can be avoided, and the use comfort of the user is improved.
(3) And if the first difference value is smaller than the second threshold value and larger than or equal to the third threshold value, adjusting the rotating speed of the indoor fan to be the third rotating speed, and adjusting the rotating speed of the outdoor fan to be the fourth rotating speed. The third rotating speed is smaller than the first rotating speed, and the fourth rotating speed is smaller than the second rotating speed.
(4) And if the first difference value is smaller than the third threshold value and larger than or equal to the fourth threshold value, regulating the rotating speed of the indoor fan to be the fifth rotating speed, regulating the rotating speed of the outdoor fan to be zero, and controlling the compressor to stop. Wherein the fifth rotational speed is less than the third rotational speed. And in the temperature interval from the third threshold value to the second threshold value and the temperature interval from the fourth threshold value to the third threshold value, the rotating speed of the outdoor fan is lower until the rotating speed of the outdoor fan is reduced to zero, and the rotating speed of the indoor fan is kept at a lower rotating speed, so that the indoor slight air-out is ensured, and the slight air-feeling is continuously provided for a user.
(5) And if the first difference value is smaller than the fourth threshold value, regulating the rotating speed of the indoor fan and the rotating speed of the outdoor fan to be zero, and controlling the compressor to stop. In the temperature range, the operation needs to be stopped in time when the user needs to be exceeded, so that the indoor environment is prevented from being overheated or overcooled.
Considering that the user may adjust the user-set temperature while the air conditioner is in operation, resulting in a change in the first difference, the user's urgency for changing the output capacity of the air conditioner may be determined based on the magnitude of the change. If the change value is large, the user wish is urgent, and the adjustment logic needs to be immediately executed with a new first difference value; if the change value is small, the user is not urgent although desiring to do so, the user can continue to operate for a certain time at the current rotating speed and then execute the adjustment logic with a new first difference value, so that the condition that the user feels suddenly and suddenly due to the sudden temperature change is avoided. Specifically, the method can be performed according to the following steps:
if the change value of the first difference value is larger than a preset change threshold value due to the change of the user set temperature, immediately executing the step of adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan;
if the change value of the first difference value is smaller than or equal to a preset change threshold value due to the change of the user set temperature, the rotating speed of the indoor fan is controlled to continue to operate for a second period of time at the current rotating speed, and then the step of adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan is executed.
Optionally, the value range of the preset change threshold is [2,3] °c.
In order to improve the reliability of adjusting the rotation speed based on the second difference, the second difference may be divided into a plurality of temperature intervals, and each temperature interval adopts different adjusting logic. The specific control logic is as follows:
(1) If the second difference value is greater than or equal to the fifth threshold value and the exhaust temperature of the compressor is greater than or equal to the sixth threshold value, the rotating speed of the outdoor fan is regulated to be the maximum rotating speed;
and if the second difference value is greater than or equal to the fifth threshold value and the exhaust temperature of the compressor is greater than or equal to the sixth threshold value after the third duration, regulating the rotating speed of the outdoor fan to be zero and controlling the compressor to stop.
After the third time period, the second difference still meets the conditions that the exhaust temperature of the compressor is greater than or equal to a fifth threshold value and the exhaust temperature of the compressor is greater than or equal to a sixth threshold value, which indicates that the outdoor unit of the air conditioner has heat exchange faults currently, and the outdoor fan and the compressor need to be controlled to stop so as to avoid damage to devices such as the compressor.
(2) And if the second difference value is smaller than the fifth threshold value and the discharge temperature of the compressor is smaller than the sixth threshold value, adjusting the rotating speed of the outdoor fan to be the sixth rotating speed. Wherein the sixth rotational speed is less than the maximum rotational speed. In this case, the rotation speed of the outdoor fan is further controlled by adjusting the rotation speed of the indoor fan and the rotation speed of the outdoor fan based on the first difference value.
Optionally, the fifth threshold has a value of [65, 75] deg.c, or the sixth threshold has a value of [105, 115] deg.c.
Illustratively, the user-set air conditioner operating temperature is noted as T; reading the temperature value of the indoor environment temperature sensing device, and marking the temperature value as a T inner ring; reading the temperature value of an outdoor environment temperature sensing device, and recording the temperature value as a T outer ring; and reading the temperature value of the outdoor unit exhaust temperature sensing device, and recording the temperature value as T exhaust. Comfort control logic and reliability control logic are described separately below.
(1) Fan control logic 1 (comfort control logic) as follows:
(1) t inner ring-T is more than or equal to 5
The rotating speed of the indoor unit runs according to the super-strong gear, such as a 1.5P air conditioner, and is about 1300r/min; the rotation speed of the outdoor unit runs according to super-strong gear, such as a 1.5P air conditioner, and is about 1000r/min;
(2) 5 > T inner ring-T is greater than or equal to 4
The rotating speed of the indoor unit is firstly operated for 30 minutes according to the super-strong gear operation, so that after the room temperature is reduced to a certain comfort level, the rotating speed of the indoor fan is adjusted: the indoor rotating speed is adjusted to be 95% of the super-strong gear; the rotating speed of the outdoor unit is firstly operated for 30 minutes according to the super-strong gear operation, so that after the room temperature is reduced to a certain comfort level, the rotating speed of the outdoor fan is adjusted: the outdoor rotating speed is adjusted to be 95% of the super-strong gear;
(3) 4 > T inner ring-T is more than or equal to 3
The rotating speed of the indoor unit is firstly operated for 20 minutes according to the super-strong gear operation, so that after the room temperature is reduced to a certain comfort level, the rotating speed of the indoor fan is adjusted: the indoor rotating speed is adjusted to 90% of the super-strong gear; the rotating speed of the outdoor unit is firstly operated for 20 minutes according to the super-strong gear operation, so that after the room temperature is reduced to a certain comfort level, the rotating speed of the outdoor fan is adjusted: the outdoor rotating speed is adjusted to 90% of the super-strong gear;
(4) 3 > T inner ring-T is more than or equal to 2
The rotating speed of the indoor unit is firstly operated for 10 minutes according to the super-strong gear operation, so that after the room temperature is reduced to a certain comfort level, the rotating speed of the indoor fan is adjusted: the indoor rotating speed is adjusted to 80% of the super-strong gear; the rotation speed of the outdoor unit is firstly operated for 10 minutes according to the super-strong gear operation, so that after the room temperature is reduced to a certain comfort level, the rotation speed of the outdoor fan is adjusted: the outdoor rotating speed is adjusted to 80% of the super-strong gear;
(5) 2 > T inner ring-T is more than or equal to 1
The indoor rotating speed is adjusted to 70% of the super-strong gear; the outdoor rotating speed is adjusted to 70% of the super-strong gear;
(6) 1 > T inner ring-T is more than or equal to 0
The indoor rotating speed is adjusted to 60% of the super-strong gear; the outdoor rotating speed is adjusted to 60% of the super-strong gear;
(7) 0 & gtT inner ring-T is more than or equal to-1
The indoor rotating speed is regulated to be 30% of the super-strong gear, the compressor stops running, and the outdoor rotating speed is regulated to be zero. At this time, the refrigerating effect of the air conditioner well meets the demands of users, the operation of the compressor is stopped at this time, the indoor rotating speed is adjusted to be 30% of the super-strong speed (slightly blowing air for the users and keeping slightly cool), and the outdoor fan stops operating.
(8) -1 > T inner ring-T arrangement
The indoor and outdoor rotational speeds are adjusted to zero, and the outdoor rotational speed is adjusted to zero. At this time, the refrigerating effect of the air conditioner exceeds the requirement of a user, and the inner fan and the outer fan are required to stop running, so that the supercooling of the user is avoided.
Further, in the use process of the air conditioner, due to the fluctuation of the indoor environment temperature or the adjustment of the T-set by the user, the difference value of the 'T inner ring-T-set' can be caused to fluctuate, and in order to improve the comfort experience of the user, the air conditioner may further comprise the following logic:
(1) when the difference value of the T inner ring-T setting is larger and the variation value exceeds 2, the fact that the user needs more refrigerating capacity urgently is indicated, and the rotating speed of the air conditioner should be changed immediately; if the difference value is increased and the change value is not more than 2, the wind gear is changed after the wind gear is operated for 5 minutes at the current rotating speed in order to avoid the experience of sudden heating for the user;
(2) when the difference value of the T inner ring-T setting is smaller and the variation value exceeds 2, the fact that the user urgently needs smaller refrigerating capacity is indicated, and the rotating speed of the air conditioner is changed immediately; if the difference value is smaller and the change value is not more than 2, the wind gear is changed after the wind gear is operated for 5 minutes at the current rotating speed in order to avoid the experience of sudden heating for the user.
(2) Fan control logic 2 (reliability control logic) as follows:
before the air conditioner leaves the factory, the reliability test of the air conditioner can be carried out, and the reliability problem can not exist under the normal running state. When certain severe scenes occur (such as when an air conditioner is installed, an inlet of an outdoor unit is installed by being stuck to a wall, so that air inlet is not smooth, and the outdoor unit cannot exchange heat, so that the air conditioner is too high in pressure, and the service life of a compressor is damaged), the reliability can be poor. Therefore, the operational reliability of the air conditioner is also concerned while satisfying the user comfort. The logic for reliability control is as follows:
(1) the T exhaust-T outer ring is more than or equal to 70, and the T exhaust is more than or equal to 110 DEG C
The long-term running of the air conditioner has reliability hidden trouble. The rotating speed of the indoor fan is 30% of that of the super-strong gear, and the rotating speed of the outdoor unit is the super-strong gear, so that the exhaust temperature is reduced.
If the condition is still met after the operation is carried out for 1 hour, the operation of the compressor is stopped immediately, the rotation speed of the indoor fan is operated according to the comfort control logic, and the operation of the outdoor fan is stopped. This point runs a higher logic priority than a logic 1 air conditioner comfort control.
(2) The T exhaust-T outer ring is more than or equal to 60, and 110 is more than or equal to 90 DEG C
On the premise of meeting comfort control, the rotating speed of the outdoor unit runs according to 90% of the super-strong gear.
(3) The T exhaust-T outer ring is more than or equal to 50, and 90 is more than or equal to 80 DEG C
On the premise of meeting comfort control, the rotating speed of the outdoor unit runs according to 85% of the super-strong gear.
(4) 50 > T exhaust-T outer ring, and 80 > T exhaust is controlled according to logic meeting comfort
According to the embodiment of the invention, the running action of the air conditioner fan is automatically controlled according to the indoor environment temperature, the user set temperature, the outdoor environment temperature and the exhaust temperature of the outdoor unit, so that the use comfort and the running reliability of the air conditioner can be improved, and the use satisfaction of customers can be improved.
Fig. 2 is a schematic structural diagram of a fan rotation speed control device of an air conditioner according to an embodiment of the present invention, where the device includes:
a temperature acquisition module 201, configured to acquire an indoor environment temperature, an outdoor environment temperature, a user-set temperature, and a compressor discharge temperature;
an indoor fan adjusting module 202, configured to adjust an indoor fan rotation speed and an outdoor fan rotation speed according to a first difference between the indoor environment temperature and the user-set temperature; the rotating speed of the indoor fan and the rotating speed of the outdoor fan are positively correlated with the first difference value;
the outdoor fan adjusting module 203 is configured to adjust the outdoor fan rotation speed according to a second difference between the compressor discharge temperature and the outdoor environment temperature, where the outdoor fan rotation speed is positively related to the second difference.
According to the fan rotating speed control device of the air conditioner, the rotating speed of the indoor fan and the rotating speed of the outdoor fan can be adjusted according to the first difference value between the indoor environment temperature and the user set temperature, and the rotating speed of the outdoor fan is adjusted according to the second difference value between the exhaust temperature of the compressor and the outdoor environment temperature, so that the wind speed of the fan is automatically adjusted, influences on user comfort and operation reliability of the air conditioner are considered in the adjusting process, and user comfort experience and operation reliability level of the air conditioner are improved.
Optionally, the indoor fan adjustment module 202 is specifically configured to:
if the first difference value is greater than or equal to a preset threshold value, the rotating speed of the indoor fan and the rotating speed of the outdoor fan are increased; and if the first difference value is smaller than the preset threshold value, reducing the rotating speed of the indoor fan and the rotating speed of the outdoor fan.
Optionally, the indoor fan adjustment module 202 is specifically configured to:
if the first difference value is greater than or equal to a first threshold value, regulating the rotation speed of the indoor fan and the rotation speed of the outdoor fan to be the maximum rotation speeds;
if the first difference value is smaller than the first threshold value and larger than or equal to the second threshold value, continuously adjusting the indoor fan speed to be the first speed after continuously operating for a first time period at the maximum speed, and continuously adjusting the outdoor fan speed to be the second speed after continuously operating for a second time period at the maximum speed; the first rotating speed and the second rotating speed are both smaller than the maximum rotating speed;
if the first difference value is smaller than the second threshold value and larger than or equal to a third threshold value, adjusting the rotating speed of the indoor fan to be a third rotating speed, and adjusting the rotating speed of the outdoor fan to be a fourth rotating speed; the third rotational speed is less than the first rotational speed, and the fourth rotational speed is less than the second rotational speed;
if the first difference value is smaller than the third threshold value and larger than or equal to a fourth threshold value, adjusting the rotating speed of the indoor fan to be a fifth rotating speed, adjusting the rotating speed of the outdoor fan to be zero, and controlling the compressor to stop; the fifth rotational speed is less than the third rotational speed;
and if the first difference value is smaller than the fourth threshold value, adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan to be zero, and controlling the compressor to stop.
Optionally, the indoor fan adjustment module 202 is further configured to:
if the change value of the first difference value is larger than a preset change threshold value due to the change of the user set temperature, the step of adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan is immediately executed; and if the change value of the first difference value caused by the change of the user set temperature is smaller than or equal to the preset change threshold value, controlling the rotating speed of the indoor fan to continue to operate for a second period of time at the current rotating speed, and then executing the step of adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan.
Optionally, the outdoor fan adjusting module 203 is specifically configured to:
if the second difference value is greater than or equal to a fifth threshold value and the compressor discharge temperature is greater than or equal to a sixth threshold value, regulating the rotation speed of the outdoor fan to be the maximum rotation speed; and if the second difference value is greater than or equal to the fifth threshold value and the exhaust temperature of the compressor is greater than or equal to the sixth threshold value after the third duration, regulating the rotating speed of the outdoor fan to be zero and controlling the compressor to stop.
Optionally, the outdoor fan adjusting module 203 is specifically configured to:
if the second difference value is smaller than the fifth threshold value and the compressor discharge temperature is smaller than the sixth threshold value, adjusting the rotating speed of the outdoor fan to be a sixth rotating speed; the sixth rotational speed is less than the maximum rotational speed.
Optionally, the value range of the preset change threshold is [2,3] °c.
Optionally, the value range of the fifth threshold is [65, 75] DEG C, or the value range of the sixth threshold is [105, 115] DEG C.
The embodiment of the invention provides an air conditioner, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium stores a computer program, and the computer program realizes the method when being read and run by the processor.
The embodiment of the invention also provides a computer readable storage medium, which stores a computer program, and when the computer program is read and run by a processor, the method provided by the embodiment is realized, the same technical effect can be achieved, and the repetition is avoided, so that the description is omitted. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
Of course, it will be appreciated by those skilled in the art that implementing all or part of the above-described methods in the embodiments may be implemented by a computer level to instruct a control device, where the program may be stored in a computer readable storage medium, and the program may include the above-described methods in the embodiments when executed, where the storage medium may be a memory, a magnetic disk, an optical disk, or the like.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. The fan speed control device of the air conditioner and the air conditioner disclosed by the embodiments correspond to the fan speed control method of the air conditioner disclosed by the embodiments, so that the description is relatively simple, and relevant parts only refer to the description of the method.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims (9)

1. A fan rotational speed control method of an air conditioner, the method comprising:
acquiring indoor environment temperature, outdoor environment temperature, user set temperature and compressor exhaust temperature; according to a first difference value between the indoor environment temperature and the user set temperature, adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan; the rotating speed of the indoor fan and the rotating speed of the outdoor fan are positively correlated with the first difference value;
according to a second difference value between the exhaust temperature of the compressor and the outdoor environment temperature, adjusting the rotating speed of the outdoor fan, wherein the rotating speed of the outdoor fan is positively related to the second difference value;
and adjusting the rotational speed of the outdoor fan according to a second difference between the compressor discharge temperature and the outdoor ambient temperature, comprising:
if the second difference value is greater than or equal to a fifth threshold value and the compressor discharge temperature is greater than or equal to a sixth threshold value, regulating the rotation speed of the outdoor fan to be the maximum rotation speed;
if the second difference value is greater than or equal to the fifth threshold value and the exhaust temperature of the compressor is greater than or equal to the sixth threshold value after the third duration, adjusting the rotating speed of the outdoor fan to be zero and controlling the compressor to stop;
if the second difference value is smaller than the fifth threshold value and the compressor discharge temperature is smaller than the sixth threshold value, adjusting the rotating speed of the outdoor fan to be a sixth rotating speed; the sixth rotational speed is less than the maximum rotational speed.
2. The method of claim 1, wherein adjusting the indoor fan speed and the outdoor fan speed based on the first difference between the indoor ambient temperature and the user-set temperature comprises:
if the first difference value is greater than or equal to a preset threshold value, the rotating speed of the indoor fan and the rotating speed of the outdoor fan are increased; and if the first difference value is smaller than the preset threshold value, reducing the rotating speed of the indoor fan and the rotating speed of the outdoor fan.
3. The method of claim 1, wherein adjusting the indoor fan speed and the outdoor fan speed based on the first difference between the indoor ambient temperature and the user-set temperature comprises:
if the first difference value is greater than or equal to a first threshold value, regulating the rotation speed of the indoor fan and the rotation speed of the outdoor fan to be the maximum rotation speeds;
if the first difference value is smaller than the first threshold value and larger than or equal to the second threshold value, continuously adjusting the indoor fan speed to be the first speed after continuously operating for a first time period at the maximum speed, and continuously adjusting the outdoor fan speed to be the second speed after continuously operating for a second time period at the maximum speed; the first rotating speed and the second rotating speed are both smaller than the maximum rotating speed;
if the first difference value is smaller than the second threshold value and larger than or equal to a third threshold value, adjusting the rotating speed of the indoor fan to be a third rotating speed, and adjusting the rotating speed of the outdoor fan to be a fourth rotating speed; the third rotational speed is less than the first rotational speed, and the fourth rotational speed is less than the second rotational speed;
if the first difference value is smaller than the third threshold value and larger than or equal to a fourth threshold value, adjusting the rotating speed of the indoor fan to be a fifth rotating speed, adjusting the rotating speed of the outdoor fan to be zero, and controlling the compressor to stop; the fifth rotational speed is less than the third rotational speed;
and if the first difference value is smaller than the fourth threshold value, adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan to be zero, and controlling the compressor to stop.
4. A method as claimed in claim 3, wherein the method further comprises:
if the change value of the first difference value is larger than a preset change threshold value due to the change of the user set temperature, the step of adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan is immediately executed;
and if the change value of the first difference value caused by the change of the user set temperature is smaller than or equal to the preset change threshold value, controlling the rotating speed of the indoor fan to continue to operate for a second period of time at the current rotating speed, and then executing the step of adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan.
5. The method of claim 4, wherein the predetermined change threshold has a value in the range of [2,3 ].
6. The method of claim 1, wherein the fifth threshold has a value in the range of [65, 75] c, or the sixth threshold has a value in the range of [105, 115] c.
7. A fan rotational speed control apparatus of an air conditioner, the apparatus comprising:
the temperature acquisition module is used for acquiring indoor environment temperature, outdoor environment temperature, user set temperature and compressor exhaust temperature;
the indoor fan adjusting module is used for adjusting the rotating speed of the indoor fan and the rotating speed of the outdoor fan according to the first difference value between the indoor environment temperature and the user set temperature; the rotating speed of the indoor fan and the rotating speed of the outdoor fan are positively correlated with the first difference value;
the outdoor fan adjusting module is used for adjusting the rotating speed of the outdoor fan according to a second difference value between the exhaust temperature of the compressor and the outdoor environment temperature, and the rotating speed of the outdoor fan is positively related to the second difference value;
the outdoor fan adjusting module is specifically used for: if the second difference value is greater than or equal to a fifth threshold value and the compressor discharge temperature is greater than or equal to a sixth threshold value, regulating the rotation speed of the outdoor fan to be the maximum rotation speed;
if the second difference value is greater than or equal to the fifth threshold value and the exhaust temperature of the compressor is greater than or equal to the sixth threshold value after the third duration, adjusting the rotating speed of the outdoor fan to be zero and controlling the compressor to stop;
if the second difference value is smaller than the fifth threshold value and the compressor discharge temperature is smaller than the sixth threshold value, adjusting the rotating speed of the outdoor fan to be a sixth rotating speed; the sixth rotational speed is less than the maximum rotational speed.
8. An air conditioner comprising a computer readable storage medium storing a computer program and a processor, the computer program implementing the method of any one of claims 1-6 when read and run by the processor.
9. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when read and run by a processor, implements the method according to any of claims 1-6.
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