CN115200152A - Control method and control device for air conditioner external fan and air conditioner - Google Patents
Control method and control device for air conditioner external fan and air conditioner Download PDFInfo
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- CN115200152A CN115200152A CN202210821093.9A CN202210821093A CN115200152A CN 115200152 A CN115200152 A CN 115200152A CN 202210821093 A CN202210821093 A CN 202210821093A CN 115200152 A CN115200152 A CN 115200152A
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- 238000000034 method Methods 0.000 title claims abstract description 54
- 230000003111 delayed effect Effects 0.000 abstract description 25
- 238000001514 detection method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method and a control device of an air conditioner external fan and an air conditioner. The control method of the air conditioner external fan comprises the following steps: responding to a shutdown instruction, and acquiring an outdoor environment temperature; judging whether the outdoor environment temperature is greater than or equal to a first preset temperature or not; if not, according to different temperature intervals of the outdoor environment temperature, executing a preset detection program corresponding to the temperature intervals, and controlling the shutdown time of the outer fan. The control method of the air conditioner external fan provided by the invention can effectively detect the internal pressure balance condition of the system, thereby adjusting the delayed operation time of the external fan and achieving the purposes of saving energy and prolonging the service life of the motor.
Description
Technical Field
The invention belongs to the field of air conditioners, and particularly relates to a control method and a control device for an air conditioner external fan and an air conditioner.
Background
After receiving the remote control stop command, the conventional air conditioner is set according to a program, and the external fan is usually stopped after continuously operating at a set maximum rotating speed for a preset time, wherein the preset time is generally fixed and unchangeable, in order to ensure the stability of an air conditioner operating system and meet the requirement of starting the air conditioner quickly again. In fact, the operation working conditions of the air conditioner and the use habits of customers are various, so that the internal pressure of the system can be completely balanced after the external fan is stopped and operates for a short time after the external fan is delayed under the condition that the operation load of the air conditioner is very low. Thus, existing external fan control methods are not effective in avoiding such waste.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide a control method and a control device for an air conditioner external fan and an air conditioner, which can effectively detect the internal pressure balance condition of a system, thereby adjusting the delayed operation time of the external fan, and achieving the purposes of saving energy and prolonging the service life of a motor.
In order to solve the technical problem, the invention provides a control method of an air conditioner external fan, which comprises the following steps:
responding to a shutdown instruction, and acquiring outdoor environment temperature;
judging whether the outdoor environment temperature is greater than or equal to a first preset temperature or not;
if not, according to different temperature intervals of the outdoor environment temperature, executing a preset detection program corresponding to the temperature intervals, and controlling the shutdown time of the outer fan.
Further optionally, according to different temperature intervals that outdoor ambient temperature is located, carry out the preset detection procedure that corresponds temperature interval, control outer fan machine and shut down the opportunity, include:
acquiring the tube temperature of an outdoor heat exchanger;
judging whether the outdoor environment temperature is greater than or equal to a second preset temperature or not; if so, the user can use the method,
judging whether the outdoor environment temperature and the outdoor heat exchanger tube temperature meet preset conditions or not; if so, the user can use the method,
and controlling the outer fan to stop.
Further optionally, the preset condition is that an absolute value of a difference between the outdoor heat exchanger tube temperature and the outdoor environment temperature is less than or equal to a preset threshold.
Further optionally, when it is determined that the outdoor ambient temperature and the outdoor heat exchanger temperature do not satisfy the preset condition, the control method further includes:
acquiring the operation time of the outer fan;
judging whether the operation time length is less than a first preset time length or not;
if so, acquiring the tube temperature of the outdoor heat exchanger again;
if not, the external fan is controlled to stop.
Further optionally, when the determination result of determining whether the outdoor environment temperature is greater than or equal to the second preset temperature is negative, the control method further includes:
judging whether the tube temperature of the outdoor heat exchanger is less than or equal to a third preset temperature or not;
if yes, the external fan is controlled to stop.
Further optionally, when the determination result of determining whether the outdoor heat exchanger tube temperature is less than or equal to the third preset temperature is no, the control method further includes:
acquiring the operation time of the outer fan;
judging whether the operation time length is less than a second preset time length or not;
if yes, acquiring the tube temperature of the outdoor heat exchanger again;
if not, the external fan is controlled to stop.
Further optionally, when the determination result of determining whether the outdoor environment temperature is greater than or equal to the first preset temperature is yes, the control method further includes:
and controlling the outer fan to stop when the running time of the outer fan reaches a third preset time.
Further optionally, the value range of the first preset time duration is greater than or equal to 60S and less than or equal to 90S;
the value range of the second preset time is greater than or equal to 60S and less than or equal to 90S;
the third preset time period ranges from greater than or equal to 60S to less than or equal to 90S.
Further optionally, the first preset time duration, the second preset time duration and the third preset time duration are all equal.
In a further alternative,
the value range of the first preset temperature is more than or equal to 40 ℃;
the value range of the second preset temperature is more than or equal to 23 ℃ and less than or equal to 27 ℃;
the third preset temperature is greater than or equal to 28 ℃ and less than or equal to 32 ℃.
The invention also provides a control device of an air conditioner external fan, which comprises one or more processors and a non-transitory computer readable storage medium storing program instructions, wherein when the one or more processors execute the program instructions, the one or more processors are used for realizing the method of any one of the technical schemes.
The invention also provides an air conditioner which adopts the control method in any one of the technical schemes or comprises the control device in the technical scheme.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
on the premise of meeting the requirement of balancing system pressure and maintaining system stability of the traditional control method, the operation method of the external fan is enriched, the aims of saving energy and electricity and prolonging the service life of the motor can be achieved, and the method can play a role in the field of energy conservation of air conditioners.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention to the proper form disclosed herein. It is obvious that the drawings in the following description are only some embodiments and that for a person skilled in the art, other drawings can also be derived from them without inventive effort. In the drawings:
fig. 1 is one of flow diagrams illustrating a method for controlling an external fan of an air conditioner according to an embodiment of the present invention.
Fig. 2 is a second flowchart illustrating a method for controlling an external blower of an air conditioner according to an embodiment of the present invention.
Fig. 3 is a third flowchart illustrating a method for controlling an external blower of an air conditioner according to an embodiment of the present invention.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In the description of the present invention, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a flowchart illustrating a method for controlling an external blower of an air conditioner according to an embodiment of the present invention. Referring to fig. 1, the control method includes steps S1 to S2, in which:
s1, responding to a shutdown instruction, and acquiring outdoor environment temperature;
s2, judging whether the outdoor environment temperature is greater than or equal to a first preset temperature or not; if not, executing S3;
when the air conditioner receives a remote control shutdown instruction, the outdoor environment temperature is detected by using the outdoor environment temperature sensing bulb. And judging whether the delay operation time of the outer fan is shortened or not according to the outdoor environment temperature. If the detected outdoor environment temperature is greater than or equal to the first preset temperature, the outer ring temperature is higher at the moment, in order to stably reduce the system pressure, the delayed operation time of the outer fan is selected not to be shortened at the moment, and the outer fan still operates to stop at the rotating speed and the delayed operation time set by the system.
And S3, executing a preset detection program corresponding to the temperature interval according to different temperature intervals of the outdoor environment temperature, and controlling the shutdown time of the outer fan.
Under the condition that the ambient temperature of the room temperature is lower than a first preset temperature, corresponding preset detection programs are executed according to the outer ring temperatures of different ranges where the ambient temperature of the room temperature is located, the internal pressure balance condition of the refrigerating system can be effectively detected, when the internal pressure of the refrigerating system reaches balance, the outer fan is controlled to stop, the outer fan does not need to operate within the delay time set by the system under the condition that the operating load is very low, the operating time of the outer fan can be shortened, the purposes of saving energy and electricity and prolonging the service life of the motor are achieved, and the air conditioner can play a role in the energy-saving field of the air conditioner.
The first preset temperature is in a range of 40 ℃ or higher, preferably 40 ℃.
Further optionally, with reference to the flowchart of fig. 2, step S3 includes steps S31 to S35:
s31, acquiring the tube temperature of the outdoor heat exchanger;
the temperature of the tube of the outdoor heat exchanger is detected by utilizing the middle temperature sensing bulb of the outdoor heat exchanger.
S32, judging whether the outdoor environment temperature is greater than or equal to a second preset temperature; if yes, executing S33;
s33, judging whether the outdoor environment temperature and the outdoor heat exchanger tube temperature meet preset conditions, if so, executing S34;
and S34, controlling the external fan to stop.
If the outdoor environment temperature is detected not to be larger than or equal to the first preset temperature, whether the outdoor environment temperature is larger than or equal to the second preset temperature is detected, and if the outdoor environment temperature is within the range, namely under the condition that the outer ring temperature is relatively low, whether the outdoor environment temperature and the outdoor heat exchanger tube temperature meet the preset conditions is continuously judged. The preset condition is used for judging the pressure balance condition in the system in the current outer ring temperature range. If the preset conditions are met, the outer fan is controlled to stop running, and the delayed running time of the outer fan is shortened, so that the effects of saving energy and prolonging the service life of the motor are achieved. And if the detected outdoor environment temperature and the outdoor heat exchanger tube temperature do not meet the preset conditions, the system is set to operate for a long time after the operation of the outer fan is delayed until the outer fan is stopped.
Further optionally, the preset condition is that an absolute value of a difference between the outdoor heat exchanger tube temperature and the outdoor environment temperature is less than or equal to a preset threshold.
The value range of the preset threshold is not limited, and a reasonable threshold can be set by those skilled in the art under the understanding of the meaning of the threshold, and in a specific embodiment of the present invention, the preset threshold is 3.
Further optionally, with reference to the flowchart of fig. 2, when it is determined that the outdoor environment temperature and the outdoor heat exchanger temperature do not satisfy the preset condition, the control method further includes steps S35 to S37, where:
s35, acquiring the operation duration of the outer fan;
s36, judging whether the running time is less than a first preset time; if yes, executing S37; if not, executing S34;
s37, acquiring the tube temperature of the outdoor heat exchanger again;
and S34, controlling the external fan to stop.
The first preset time is the time of the delayed operation of the external fan set by the system, the corresponding outer ring temperature interval is less than the first preset temperature and greater than or equal to the second preset temperature, and the value range is 60-90S. If some conditions exist, when the operation duration of the external fan is within a first preset duration set by the system and the absolute value of the difference between the outdoor environment temperature and the outdoor heat exchanger tube temperature is not detected to be less than or equal to a preset threshold (for example, 3 ℃), the outdoor heat exchanger tube temperature is obtained again, whether the outdoor heat exchanger tube temperature and the outdoor environment temperature meet preset conditions or not is judged again, and therefore circulation detection can be formed within the first preset duration. And once the pressure in the system reaches balance, controlling the external fan to stop. If the condition that the pressure in the system is balanced is not detected all the time, the external fan still runs to stop for the first preset time length set by the system, and the preheating and the dissipation of the system can be guaranteed at the time, so that the pressure of the system is balanced.
Further optionally, with reference to the flowchart of fig. 2, when the determination result of determining whether the outdoor environment temperature is greater than or equal to the second preset temperature is negative, the control method further includes step S38, where:
s38, judging whether the tube temperature of the outdoor heat exchanger is less than or equal to a third preset temperature; if yes, executing S34;
and S34, controlling the external fan to stop.
If the detected outdoor environment temperature does not meet the two sets of conditions, the outdoor environment temperature meets the condition that the outdoor environment temperature is lower than the second preset temperature, the condition that the outer ring temperature is relatively low is judged, whether the outdoor heat exchanger tube temperature meets the third preset temperature or not is judged, if yes, the outer fan is controlled to stop, the delayed running time of the outer fan is shortened, and therefore the effects of saving energy and prolonging the service life of the motor are achieved.
Further optionally, with reference to the schematic flow chart of fig. 2, when the determination result of determining whether the outdoor heat exchanger tube temperature is less than or equal to the third preset temperature is negative, the control method further includes steps S39 to S40, where:
s39, acquiring the operation time of the outer fan;
s40, judging whether the running time is less than a second preset time; if yes, executing S41; if not, executing S34;
s41, acquiring the tube temperature of the outdoor heat exchanger again;
and S34, controlling the external fan to stop.
The second preset time is the time for the external fan to operate after the delay, and the corresponding outer ring temperature interval is less than the second preset temperature, and the value range is 60S-90S. If some conditions exist, the outdoor heat exchanger pipe temperature T is not detected when the running time of the external fan is within the second preset time set by the system Pipe Satisfy T Pipe And if the temperature of the outdoor heat exchanger tube is less than or equal to the third preset temperature (for example, 30 ℃), acquiring the temperature of the outdoor heat exchanger tube again, and judging whether the temperature of the outdoor heat exchanger tube meets the third preset temperature or less again, so that the cycle detection can be formed in the second preset time. And once the pressure in the system reaches balance, controlling the external fan to stop. If the condition that the pressure in the system is balanced is not detected all the time, the external fan still operates to stop in the second preset time period set by the system, and the pressure of the system can be ensured to be stably reduced.
Further optionally, with reference to the flowchart of fig. 2, when the determination result of determining whether the outdoor environment temperature is greater than or equal to the first preset temperature is yes, the control method further includes step S5:
and S5, controlling the outer fan to stop when the running time of the outer fan reaches a third preset time.
The third preset time is the time of the delayed operation of the external fan set by the system, the corresponding outer ring temperature interval is greater than or equal to the first preset temperature, and the value range is 60S-90S. If the detected outdoor environment temperature is greater than or equal to the first preset temperature, the outer ring temperature is higher at the moment, in order to stably reduce the system pressure, the delayed operation time of the outer fan is not shortened, and the outer fan still operates to stop at a third preset time preset by the system.
Further optionally, the value range of the first preset time duration is greater than or equal to 60S and less than or equal to 90S;
the value range of the second preset time is greater than or equal to 60S and less than or equal to 90S;
the third preset time period ranges from greater than or equal to 60S to less than or equal to 90S.
Further optionally, the first preset time length, the second preset time length, and the third preset time length are equal, and preferably, the first preset time length, the second preset time length, and the third preset time length are all 60S.
Further optionally, the first preset temperature is greater than or equal to 40 ℃, and the preferred value is 40 ℃;
the second preset temperature is greater than or equal to 23 ℃ and less than or equal to 27 ℃, and the preferred value is 25 ℃;
the third preset temperature is greater than or equal to 28 ℃ and less than or equal to 32 ℃, and the preferable value is 30 ℃.
The control method of the air conditioner external fan according to the embodiment of the present invention will be further explained with reference to fig. 3.
T Pipe The temperature of the middle temperature sensing bulb of the outdoor heat exchanger;
T outer ring The temperature of an outdoor environment temperature sensing bulb detected when the system receives a shutdown instruction is detected;
Δ T is T Pipe And T Outer ring The difference between the two;
t outer fan The time from the system receiving the shutdown instruction to the shutdown of the external fan;
t is the delayed operation time of the external fan preset by the system, namely the first preset time, the second preset time and the third preset time are t, wherein t is more than or equal to 60S and less than or equal to 90S;
the first preset temperature is 40 ℃, the second preset temperature is 25 ℃, the third preset temperature is 30 ℃ and the preset threshold is 3 ℃.
The specific control method comprises the following steps:
1. detecting whether outdoor ambient temperature satisfies T Outer ring ≥40℃
And when the air conditioner receives a remote control shutdown instruction, recording the delay operation time of the external fan. As shown in fig. 3, if the detected outdoor ambient temperature satisfies T Outer ring Not less than 40 ℃, which indicates that the temperature of the outer ring is higher at the moment, in order to stably reduce the pressure of the system, the delayed running time of the outer fan is not shortened at the moment, and the outer fan is still in the same systemRunning to shutdown at preset speed and delayed running time, i.e. t Outer fan ＝t。
2. Detecting whether outdoor environment temperature meets T of more than or equal to 25 DEG C Outer ring ＜40℃
If the outdoor environment temperature is detected not to satisfy T Outer ring Not less than 40 ℃, detecting whether the outdoor environment temperature meets T not less than 25 DEG C Outer ring Is less than 40 ℃, if the outdoor loop temperature is in the range, the T is continuously detected Pipe And T Outer ring And calculates the difference at between the two.
(1) When the delay operation time of the external fan is within the preset delay operation time of the system and meets the condition that delta T = | T = Pipe -T Ring (C) When | < 3 ℃, the operation of the outer fan is stopped, namely the conditions are met simultaneously: t is t Outer fan < t and condition two: Δ T = | T Pipe -T Ring (C) When | < 3 ℃, the outer fan is stopped, and the delayed running time of the outer fan is shortened, thereby achieving the effects of saving energy and prolonging the service life of the motor.
(2) If some conditions exist, when the delayed running time of the external fan is within the preset delayed running time of the system, T is not detected Pipe And T Outer ring Satisfies Δ T = | T Pipe -T Ring (C) If the temperature is less than or equal to 3 ℃, the outer fan still runs to stop at the delayed running time preset by the system, namely t Outer fan T, the preheating of the system can be guaranteed to be dissipated, and the pressure of the system can be balanced.
3. Detecting outdoor ambient temperature satisfying T Outer ring ＜25℃
If the outdoor environment temperature is detected not to satisfy the two sets of conditions, the outdoor environment temperature satisfies T Outer ring At < 25 ℃ the detection of T is continued Pipe 。
(1) When the delay operation time of the external fan is within the preset delay operation time of the system and meets T Pipe When the temperature is less than or equal to 30 ℃, the operation of the outer fan is stopped, namely the conditions are met: t is t Outer fan < t and condition two: t is Pipe When the temperature is less than or equal to 30 ℃, the outdoor fan is stopped, and the delayed running time of the external fan is shortened, thereby saving energyAnd the service life of the motor is prolonged.
(2) If some conditions exist, T is not detected when the delayed running time of the external fan is within the preset delayed running time of the system Pipe Satisfy T Pipe At the temperature of less than or equal to 30 ℃, the outdoor fan still operates to stop at the delayed operation time preset by the system, namely t Outer fan And = t, the pressure of the system can be stably reduced at this time.
The control method of the air conditioner external fan provided by the embodiment of the invention can shorten the delayed operation time of the external fan under certain specific conditions, and solve the problem of waste of redundant operation of the air conditioner external fan. On the one hand, by detecting the outdoor ambient temperature T of the received shutdown instruction Outer ring Judging whether the delayed running time of the outer fan is shortened or not; on the other hand, when the external ring temperatures in different ranges are detected when the shutdown instruction is received, the intermediate temperature T of the outdoor heat exchanger is monitored Pipe And outdoor ambient temperature T Outer ring And the delayed running time of the outer fan is controlled, so that the aims of intelligent control, energy conservation and emission reduction are fulfilled.
The control method has simple operation logic, enriches the operation methods of the external fan on the premise of meeting the requirement of the traditional control method on balancing the system pressure and maintaining the stability of the system, can achieve the aims of saving energy and electricity and prolonging the service life of the motor, and can play a role in the energy-saving field of air conditioners.
The embodiment of the invention also provides a control device of an air conditioner external fan, which comprises one or more processors and a non-transitory computer readable storage medium storing program instructions, wherein when the one or more processors execute the program instructions, the one or more processors are used for realizing the control method in any one of the preceding paragraphs.
The embodiment of the invention also provides an air conditioner which adopts the control method in any one of the preceding paragraphs or comprises the control device in the preceding paragraph.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A control method of an air conditioner external fan is characterized by comprising the following steps:
responding to a shutdown instruction, and acquiring outdoor environment temperature;
judging whether the outdoor environment temperature is greater than or equal to a first preset temperature or not;
if not, according to different temperature intervals of the outdoor environment temperature, executing a preset detection program corresponding to the temperature intervals, and controlling the shutdown time of the outer fan.
2. The method for controlling the external fan of the air conditioner according to claim 1, wherein a preset detection program corresponding to a temperature range is executed according to different temperature ranges of the outdoor environment temperature, and the time for stopping the external fan is controlled, including:
acquiring the tube temperature of an outdoor heat exchanger;
judging whether the outdoor environment temperature is greater than or equal to a second preset temperature or not; if so, the user can use the method,
judging whether the outdoor environment temperature and the outdoor heat exchanger tube temperature meet preset conditions or not; if so,
and controlling the outer fan to stop.
3. The method for controlling an outdoor fan of an air conditioner according to claim 2, wherein the preset condition is that an absolute value of a difference between the outdoor heat exchanger tube temperature and the outdoor environment temperature is less than or equal to a preset threshold.
4. The control method of an air conditioner outdoor fan according to claim 2, when it is determined that the outdoor ambient temperature and the outdoor heat exchanger temperature do not satisfy the first preset condition, the control method further comprising:
acquiring the operation time of the outer fan;
judging whether the operation time length is less than a first preset time length or not;
if yes, acquiring the tube temperature of the outdoor heat exchanger again;
if not, the outer fan is controlled to stop.
5. The method for controlling the outdoor unit of the air conditioner according to any one of claims 2 to 4, wherein when the determination result of determining whether the outdoor environment temperature is greater than or equal to the second preset temperature is negative, the method further comprises:
judging whether the tube temperature of the outdoor heat exchanger is less than or equal to a third preset temperature or not;
and if so, controlling the outer fan to stop.
6. The control method of the air conditioner external fan according to claim 5, wherein when the determination result of determining whether the outdoor heat exchanger tube temperature is less than or equal to a third preset temperature is negative, the control method further comprises:
acquiring the operation time of the outer fan;
judging whether the operation time length is less than a second preset time length or not;
if yes, acquiring the tube temperature of the outdoor heat exchanger again;
if not, controlling the external fan to stop.
7. The method for controlling an outdoor unit of an air conditioner according to claim 6, wherein when the determination result of determining whether the outdoor ambient temperature is greater than or equal to the first preset temperature is yes, the method further comprises:
and controlling the outer fan to stop when the running time of the outer fan reaches a third preset time.
8. The control method of an air conditioner external fan according to claim 7,
the value range of the first preset time is greater than or equal to 60S and less than or equal to 90S;
the value range of the second preset time is greater than or equal to 60S and less than or equal to 90S;
the value range of the third preset time is greater than or equal to 60S and less than or equal to 90S.
9. A control apparatus for an air conditioner external fan, comprising one or more processors and a non-transitory computer-readable storage medium storing program instructions, the one or more processors being configured to implement the method according to any one of claims 1-8 when the program instructions are executed by the one or more processors.
10. An air conditioner characterized by employing the control method according to any one of claims 1 to 8 or comprising the control device according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210821093.9A CN115200152A (en) | 2022-07-12 | 2022-07-12 | Control method and control device for air conditioner external fan and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210821093.9A CN115200152A (en) | 2022-07-12 | 2022-07-12 | Control method and control device for air conditioner external fan and air conditioner |
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| US20160238301A1 (en) * | 2015-02-13 | 2016-08-18 | Trane International Inc. | Defrost Learning Algorithm Based on Time of Defrost State Operation |
| CN107631409A (en) * | 2017-10-19 | 2018-01-26 | 广东美的制冷设备有限公司 | Air conditioner and its control method, control device and computer-readable recording medium |
| CN110145837A (en) * | 2019-04-19 | 2019-08-20 | 青岛海尔空调器有限总公司 | Air conditioner and its control method |
| CN110542237A (en) * | 2019-09-12 | 2019-12-06 | 广东美的制冷设备有限公司 | Air conditioner, operation control method and device thereof and computer readable storage medium |
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| US20160238301A1 (en) * | 2015-02-13 | 2016-08-18 | Trane International Inc. | Defrost Learning Algorithm Based on Time of Defrost State Operation |
| CN107631409A (en) * | 2017-10-19 | 2018-01-26 | 广东美的制冷设备有限公司 | Air conditioner and its control method, control device and computer-readable recording medium |
| CN110145837A (en) * | 2019-04-19 | 2019-08-20 | 青岛海尔空调器有限总公司 | Air conditioner and its control method |
| CN110542237A (en) * | 2019-09-12 | 2019-12-06 | 广东美的制冷设备有限公司 | Air conditioner, operation control method and device thereof and computer readable storage medium |
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