CN115540196A - Control method and device for air conditioner overheating protection and air conditioner - Google Patents
Control method and device for air conditioner overheating protection and air conditioner Download PDFInfo
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- CN115540196A CN115540196A CN202210916926.XA CN202210916926A CN115540196A CN 115540196 A CN115540196 A CN 115540196A CN 202210916926 A CN202210916926 A CN 202210916926A CN 115540196 A CN115540196 A CN 115540196A
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- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000013021 overheating Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 49
- 238000007664 blowing Methods 0.000 claims description 40
- 238000004590 computer program Methods 0.000 claims description 18
- 230000000694 effects Effects 0.000 abstract description 16
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 15
- 239000000243 solution Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000000071 blow moulding Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- 239000013589 supplement Substances 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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
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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
-
- 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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Human Computer Interaction (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application provides a control method and device for air conditioner overheating protection and an air conditioner, relates to the air conditioning technology, and comprises the following steps: acquiring a first temperature of an evaporator in an indoor unit of an air conditioner, a first mode of an air deflector and a first rotating speed of a fan; if the first temperature is determined to be greater than or equal to the preset threshold, adjusting the mode of the air deflector and the rotating speed of the fan according to the first mode and the first rotating speed, and acquiring a second temperature of the evaporator; and if the second temperature is determined to be greater than or equal to the preset threshold value, starting a preset overheat protection mechanism. The scheme provides an overheating protection control method capable of improving the thermal effect of the air modulation to a certain extent. After the temperature of the evaporator reaches the set temperature, the hot air blown out by the air conditioner and the indoor cold air can be better subjected to heat exchange by adjusting the rotating speed of the fan and the mode of the air guide plate. Then, the temperature of the evaporator is collected, and when the temperature reaches the set temperature, the overheating protection mechanism is started.
Description
Technical Field
The embodiment of the application belongs to the technical field of air conditioners, and particularly relates to a control method and device for air conditioner overheating protection and an air conditioner.
Background
At present, the use of air conditioners is becoming more and more popular in people's daily life. In the air conditioner heating process, because hot air can rise automatically, the condition that the hot air is gathered at the upper part of a room can appear, and a hang-up air conditioner is generally hung at a higher position, so that the hot air can be circulated at the upper part of the room all the time, the air inlet temperature of the air conditioner is high, and the air outlet temperature is higher. The normal use of the air conditioner is affected by the overhigh temperature of the indoor unit of the air conditioner.
In the prior art, when the temperature of an evaporator in an indoor unit is detected to reach a set temperature, the frequency of a compressor can be reduced, so that the normal use of an air conditioner cannot be influenced by overhigh temperature of the indoor unit.
However, in the above-described system, when the temperature of the evaporator reaches the set temperature, the hot air circulates only in the upper part of the room, and the whole room cannot achieve the required heating effect, which causes a problem of poor heating effect.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problem in the prior art that when the temperature of the evaporator reaches the set temperature, hot air circulates only at the upper part of the room, and the whole room cannot achieve the required heating effect, so that the heating effect is not good, the embodiments of the present application provide a control method and device for air conditioner overheat protection, and an air conditioner.
In a first aspect, an embodiment of the present application provides a control method for overheat protection of an air conditioner, including:
acquiring a first temperature of an evaporator in an indoor unit of the air conditioner, a first mode of an air deflector in the indoor unit and a first rotating speed of a fan in the indoor unit;
if the first temperature is determined to be greater than or equal to a preset threshold value, adjusting the mode of the air deflector and the rotating speed of the fan according to the first mode and the first rotating speed, and acquiring a second temperature of the evaporator;
and if the second temperature is determined to be greater than or equal to a preset threshold value, starting a preset overheat protection mechanism.
In a preferred technical solution of the control method for overheat protection of an air conditioner, the adjusting the mode of the air deflector and the rotation speed of the fan according to the first mode and the first rotation speed and obtaining the second temperature of the evaporator includes:
if the first rotating speed is determined to be lower than the preset highest rotating speed of the fan, adjusting the rotating speed of the fan to the preset highest rotating speed;
obtaining a third temperature of the evaporator after the first time;
if the third temperature is determined to be lower than the preset threshold value, adjusting the rotating speed of the fan to the first rotating speed;
or,
if the third temperature is determined to be greater than or equal to the preset threshold value and the first mode is determined not to be the down-blowing mode, adjusting the mode of the air deflector to be the down-blowing mode;
after a second time, obtaining a fourth temperature of the evaporator;
the method further comprises the following steps: if the fourth temperature is smaller than the preset threshold value, the mode of the air deflector is restored to the first mode.
In a preferred technical solution of the control method for overheat protection of an air conditioner, if it is determined that the first temperature is greater than or equal to the preset threshold, it is determined that the first rotation speed is equal to the preset maximum rotation speed, and it is determined that the first mode is not the down-blowing mode, the mode of the air deflector is adjusted to the down-blowing mode;
obtaining a fifth temperature of the evaporator after the second time;
if the fifth temperature is determined to be smaller than the preset threshold value, the mode of the air deflector is restored to the first mode;
or,
and if the fifth temperature is determined to be greater than or equal to a preset threshold value, starting the preset overheat protection mechanism.
In a preferred technical solution of the control method for overheat protection of an air conditioner, if it is determined that the first temperature is greater than or equal to a preset threshold, and it is determined that the first rotation speed is equal to the preset maximum rotation speed, and it is determined that the first mode is a down-blowing mode, the preset overheat protection mechanism is started.
In a preferred technical solution of the control method for overheat protection of an air conditioner, the adjusting the mode of the air deflector and the rotation speed of the fan according to the first mode and the first rotation speed, and obtaining the second temperature of the evaporator further includes:
if the first mode is determined not to be the down-blowing mode, adjusting the mode of the air deflector to be the down-blowing mode;
after a third time, obtaining a sixth temperature of the evaporator;
if the sixth temperature is smaller than the preset threshold value, the mode of the air deflector is restored to the first mode;
or,
if the sixth temperature is determined to be greater than or equal to the preset threshold value and the first rotating speed is determined to be less than the preset maximum rotating speed of the fan, adjusting the rotating speed of the fan to the preset maximum rotating speed;
after a fourth time, obtaining a seventh temperature of the evaporator;
the method further comprises the following steps: if the seventh temperature is determined to be smaller than the preset threshold value, the mode of the air deflector is restored to the first mode.
In a preferred technical solution of the control method for overheat protection of an air conditioner, if it is determined that the first temperature is greater than or equal to the preset threshold, and it is determined that the first rotation speed is less than the preset maximum rotation speed, and it is determined that the first mode is a down-blowing mode, the rotation speed of the fan is adjusted to the preset maximum rotation speed;
acquiring an eighth temperature of the evaporator after the fourth time; and if the eighth temperature is determined to be greater than or equal to the preset threshold value, starting the preset overheat protection mechanism.
In a preferred technical solution of the control method for overheat protection of an air conditioner, if it is determined that the first temperature is greater than or equal to the preset threshold, and it is determined that the first rotation speed is equal to the preset maximum rotation speed, and it is determined that the first mode is a down-blowing mode, the preset overheat protection mechanism is started.
In a preferred technical solution of the control method for overheat protection of an air conditioner, the preset overheat protection mechanism includes one or a combination of the following: reducing the frequency of a compressor in an outdoor unit of the air conditioner; and controlling the opening of a throttling device in the outdoor unit.
In a second aspect, an embodiment of the present application provides a control device for overheat protection of an air conditioner, including:
the air conditioner comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring a first temperature of an evaporator in an indoor unit of the air conditioner, a first mode of an air deflector in the indoor unit and a first rotating speed of a fan in the indoor unit;
the adjusting unit is used for adjusting the mode of the air deflector and the rotating speed of the fan according to the first mode and the first rotating speed and acquiring a second temperature of the evaporator if the first temperature is determined to be greater than or equal to a preset threshold value;
and the starting unit is used for starting a preset overheat protection mechanism if the second temperature is determined to be greater than or equal to a preset threshold value.
In a third aspect, an embodiment of the present application provides an air conditioner, including: a processor, a memory and computer program instructions stored on the memory and executable on the processor for implementing the first aspect and the methods provided by the possible designs in the first aspect when the processor executes the computer program instructions.
In a fourth aspect, embodiments of the present application may provide a computer-readable storage medium having stored therein computer-executable instructions for implementing the first aspect and the methods provided in the possible designs of the first aspect when executed by a processor.
In a fifth aspect, embodiments of the present application provide a computer program product comprising a computer program that, when executed by a processor, is configured to implement the first aspect and the methods provided in the first aspect.
The method comprises the steps of obtaining a first temperature of an evaporator in an indoor unit of the air conditioner, a first mode of an air deflector in the indoor unit, and a first rotating speed of a fan in the indoor unit; if the first temperature is determined to be greater than or equal to the preset threshold, adjusting the mode of the air deflector and the rotating speed of the fan according to the first mode and the first rotating speed, and acquiring a second temperature of the evaporator; and if the second temperature is determined to be greater than or equal to the preset threshold value, starting a preset overheat protection mechanism. The application provides an overheating protection control method capable of improving the thermal modulation effect to a certain extent. After the temperature of the evaporator is detected to reach the set temperature, the heat exchange between the hot air blown out by the air conditioner and the indoor cold air is better realized by adjusting the rotating speed of the fan and the mode of the air deflector, and the heating effect of the air conditioner can be improved to a certain extent. Then, the temperature of the evaporator is collected, and when the temperature reaches the set temperature, the overheating protection mechanism is started.
Drawings
The control method and device for the air conditioner overheating protection and the air conditioner are described below with reference to the accompanying drawings, wherein:
fig. 1 is a schematic view of a scene of an air conditioner in a heating mode according to an embodiment of the present application;
fig. 2 is a schematic flowchart of a first control method for overheat protection of an air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic flowchart of a second control method for overheat protection of an air conditioner according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a first control device for overheat protection of an air conditioner according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a second control device for overheat protection of an air conditioner according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an air conditioner according to an embodiment of the present application.
Detailed Description
First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present application, and are not intended to limit the scope of the present application. And can be adjusted as needed by those skilled in the art to suit particular applications.
Next, it should be noted that in the description of the embodiments of the present application, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, it should be noted that, in the description of the embodiments of the present application, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. Specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art according to specific situations.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Before introducing the embodiments of the present application, an application context of the embodiments of the present application is explained first:
in daily life, the use of air conditioners is becoming more and more popular. In the air conditioner heating process, because the hot air can rise automatically, the situation that the hot air is gathered at the upper part of a room can occur in the automatic up-and-down swinging process of an air conditioner air deflector, and a hang-up air conditioner is generally hung at a higher position, so that the hot air can circulate at the upper part of the room all the time, the air inlet temperature of the air conditioner is high, and the air outlet temperature is higher. Such circulation may cause the hot air to circulate in the upper part of the room as shown in fig. 1, and the user may not experience the heating effect. Moreover, the normal use of the air conditioner is affected by the over-high temperature of the indoor unit of the air conditioner.
In the prior art, when the temperature of an evaporator in an indoor unit is detected to reach a set temperature, the frequency of a compressor can be reduced, so that the normal use of an air conditioner cannot be influenced by overhigh temperature of the indoor unit.
However, in this way, the heating effect is further affected.
In view of the above problems, the inventive concept of the present application is as follows: after the temperature of the evaporator is detected to reach the set temperature, the rotating speed of the fan and the mode of the air guide plate are adjusted, so that hot air blown out of the air conditioner and indoor cold air can exchange heat better, and the heating effect of the air conditioner can be improved to a certain extent. Then, the temperature of the evaporator is collected, and when the temperature reaches the set temperature, the overheating protection mechanism is started. The application provides an overheating protection control method capable of improving the thermal effect of air modulation to a certain extent.
Hereinafter, the technical means of the present application will be described in detail by specific examples.
It should be noted that the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.
Fig. 2 is a schematic flowchart of a first embodiment of a control method for overheat protection of an air conditioner according to an embodiment of the present application. As shown in fig. 2, the control method of the air conditioner overheating protection may include the steps of:
The method provided by the application can be executed by an air conditioner. The air conditioner can be an air conditioner hanging machine or a vertical air conditioner with a transverse air deflector. The air conditioner can obtain a first temperature of a current evaporator in an indoor unit, a first mode of a current air deflector in the indoor unit and a first rotating speed of a current fan in the indoor unit.
Specifically, an average value of the surface temperature of the evaporator may be collected by a temperature sensor in the evaporator, and the average value may be used as the first temperature of the evaporator.
One or two strip-shaped injection molding parts are arranged at the air outlet of the indoor unit of the air conditioner and are air deflectors. The air deflector can be used for controlling the air outlet angle and setting high-low air sweeping. There are generally five modes of wind deflectors, including: the upper blow mode (controlling wind to blow upwards), the lower blow mode (controlling wind to blow downwards), the middle mode (controlling wind to blow towards the middle), the upper middle mode (controlling wind to blow towards the obliquely upper direction) and the lower middle mode (controlling wind to blow towards the obliquely lower direction).
Specifically, in the air-conditioning heating mode, hot air around the evaporator can be blown to the indoor through a fan in the indoor unit, so that forced convection is carried out, the indoor temperature is raised, and the purpose of adjusting the indoor air temperature is achieved. Wherein, the faster the rotational speed of fan, the more the amount of wind that produces just is big, and under the same condition, indoor temperature just also is fast that rises just more.
The preset threshold is a temperature value preset according to actual conditions, and may be set to 58 degrees celsius, for example.
Specifically, if it is determined that the first temperature of the currently-collected evaporator is greater than or equal to the preset threshold, the mode of the air deflector and the rotating speed of the fan can be adjusted through the first mode of the currently-collected air deflector and the first rotating speed of the currently-collected fan, so that the purpose of strengthening indoor air circulation is achieved, hot air circulates on the upper portion of a room, the whole room meets the heating requirement as much as possible, and the heating effect of the air conditioner is improved.
Specifically, because the hot air can automatically rise upwards, the air can be blown downwards through the lower blow molding mode of the air deflector, so that the indoor air circulation is enhanced; the rotating speed of the fan can be increased to provide heat circulation supplement air, and further indoor air circulation is enhanced.
Specifically, the mode of the air deflector is adjusted, and the second temperature of the evaporator can be acquired after the rotating speed of the fan is adjusted for a period of time.
In step 203, if it is determined that the second temperature is greater than or equal to the preset threshold, a preset overheat protection mechanism is started.
The preset overheat protection mechanism is a preset overheat protection mechanism for the indoor unit of the air conditioner. The preset overheat protection mechanism is to ensure that the normal use of the air conditioner is not influenced by the overhigh temperature of the indoor unit through some mechanisms. For example, the mechanism may be to reduce the frequency of the compressor in the air conditioner, and specifically, the preset overheat protection mechanism is not limited in this embodiment. Specifically, the frequency of the compressor is reduced, so that the temperature of the evaporator can be reduced, and the normal use of the air conditioner cannot be influenced by overhigh temperature of the indoor unit.
Specifically, after the mode of the air deflector and the rotating speed of the fan are adjusted for a period of time, the acquired second temperature of the evaporator can be compared with a preset threshold, and if the second temperature is determined to be greater than or equal to the preset threshold, a preset overheat protection mechanism is started.
Further, if it is determined that the second temperature is less than the preset threshold, the preset overheat protection mechanism is not started, and step 201 is continuously executed.
The application provides a control method for air conditioner overheat protection, which comprises the following steps: the method comprises the steps of obtaining a first temperature of an evaporator in an indoor unit of the air conditioner, a first mode of an air deflector in the indoor unit and a first rotating speed of a fan in the indoor unit; if the first temperature is determined to be greater than or equal to the preset threshold, adjusting the mode of the air deflector and the rotating speed of the fan according to the first mode and the first rotating speed, and acquiring a second temperature of the evaporator; and if the second temperature is determined to be greater than or equal to the preset threshold value, starting a preset overheat protection mechanism. According to the method provided by the scheme, after the temperature of the evaporator is detected to reach the set temperature, the rotating speed of the fan and the mode of the air guide plate are adjusted, so that hot air blown out by the air conditioner and indoor cold air can be better subjected to heat exchange, and the heating effect of the air conditioner can be improved to a certain extent. Then, the temperature of the evaporator is collected, and when the temperature reaches the set temperature, the overheat protection mechanism is started. The scheme provides an overheating protection control method capable of improving the thermal effect of the air modulation to a certain extent.
Fig. 3 is a flowchart illustrating a second control method for overheat protection of an air conditioner according to an embodiment of the present application. As shown in fig. 3, the control method of the air conditioner overheating protection may include the steps of:
Specifically, the principle and implementation of step 301 are similar to those of step 201, and are not described again.
Specifically, after step 301, step 302A may be executed, and step 302B may also be executed.
The preset maximum rotating speed is the maximum rotating speed of the fan preset according to actual conditions.
The first time is a time length value preset according to actual conditions.
Specifically, if it is determined that the first temperature is greater than or equal to the preset threshold and the first rotating speed is less than the preset maximum rotating speed of the fan, the rotating speed of the fan may be adjusted first, and the current first rotating speed of the fan is adjusted to the preset maximum rotating speed, so as to increase the air volume and strengthen the indoor air circulation. And acquiring a third temperature of the evaporator after the first time.
The second time is a time length value preset according to actual conditions.
Specifically, the third temperature of the evaporator is compared with a preset threshold, and if the third temperature is determined to be lower than the preset threshold, the rotating speed of the fan is adjusted from the preset maximum rotating speed to the original first rotating speed. Then, step 301 is continued.
Or if the third temperature is determined to be greater than or equal to the preset threshold value and the first mode is determined not to be the down-blowing mode, then adjusting the mode of the air deflector, and adjusting the mode of the air deflector from the current first mode to the down-blowing mode; thereby blowing the wind downward to enhance the indoor air circulation. And acquiring a fourth temperature of the evaporator after the second time elapses.
Specifically, the fourth temperature of the evaporator is compared with a preset threshold, and if the fourth temperature is determined to be lower than the preset threshold, the mode of the air deflector is restored from the lower blow-molding mode to the original first mode. At this time, the rotation speed of the fan is still kept at the preset maximum rotation speed. Then, step 301 is continued.
Specifically, if it is determined that the fourth temperature is greater than or equal to the preset threshold, a preset overheat protection mechanism is started.
In one implementation, the preset overheat protection mechanism includes one or more of the following combinations: reducing the frequency of a compressor in an outdoor unit of an air conditioner; and controlling the opening of a throttling device in the outdoor unit.
Specifically, the exhaust temperature can be reduced by opening the throttle device, so that the temperature of the evaporator can be reduced, and the normal use of the air conditioner cannot be influenced by the fact that the temperature of the indoor unit is too high.
In one implementation, if it is determined that the first temperature is greater than or equal to the preset threshold, and it is determined that the first rotation speed is equal to the preset maximum rotation speed, and it is determined that the first mode is not the down-blowing mode, the mode of the air deflector is adjusted to the down-blowing mode; after the second time, a fifth temperature of the evaporator is obtained.
Specifically, if the first temperature is determined to be greater than or equal to a preset threshold value, the first rotating speed is determined to be equal to a preset maximum rotating speed, and the first mode is determined not to be the down-blowing mode, the mode of the air deflector is adjusted, and the mode of the air deflector is adjusted from the first mode to the down-blowing mode; and after a second time, acquiring a fifth temperature of the evaporator.
If the fifth temperature is smaller than the preset threshold value, the mode of the air deflector is restored to the first mode; or if the fifth temperature is determined to be greater than or equal to the preset threshold, starting a preset overheat protection mechanism.
Then, the fifth temperature may be compared with a preset threshold, and if it is determined that the fifth temperature is less than the preset threshold, the mode of the air deflector is restored from the lower blow-molding mode to the first mode, and step 301 is continuously performed; or if the fourth temperature is determined to be greater than or equal to the preset threshold, starting a preset overheat protection mechanism.
In one implementation, if it is determined that the first temperature is greater than or equal to the preset threshold, and it is determined that the first rotation speed is equal to the preset maximum rotation speed, and it is determined that the first mode is the blow-down mode, a preset overheat protection mechanism is activated.
Specifically, if it is determined that the first temperature is greater than or equal to the preset threshold, the first rotation speed is equal to the preset maximum rotation speed, and the first mode is the down-blowing mode, the mode of the air deflector and the rotation speed of the fan do not need to be adjusted, and the preset overheat protection mechanism is directly started.
The third time is a time length value preset according to actual conditions.
Specifically, if it is determined that the first temperature is greater than or equal to the preset threshold and the first mode is not the bottom blowing mode, the mode of the air deflector may be adjusted first, the current first mode of the air deflector is adjusted to the bottom blowing mode, and then the air is blown downward to enhance the indoor air circulation. And acquiring a sixth collected temperature of the evaporator after the third time.
And the fourth time is a time length value preset according to the actual situation.
Specifically, the sixth temperature of the evaporator is compared with a preset threshold, and if the sixth temperature is determined to be less than the preset threshold, the mode of the air deflector is restored from the lower blow-molding mode to the original first mode. Then, step 301 is continued.
Or if the sixth temperature is determined to be greater than or equal to the preset threshold value and the first rotating speed is determined to be less than the preset highest rotating speed of the fan, then adjusting the rotating speed of the fan, and adjusting the rotating speed of the fan from the current first rotating speed to the preset highest rotating speed; and acquiring a seventh temperature of the evaporator after the fourth time elapses.
Specifically, the seventh temperature of the evaporator is compared with a preset threshold, and if the seventh temperature is smaller than the preset threshold, the mode of the air deflector is restored to the original first mode from the lower blow-molding mode; and proceeds to step 301.
Or, if the seventh temperature is determined to be greater than or equal to the preset threshold, a preset overheat protection mechanism is started.
In an implementation manner, if it is determined that the first temperature is greater than or equal to the preset threshold, and it is determined that the first rotation speed is less than the preset maximum rotation speed, and it is determined that the first mode is the down-blowing mode, the rotation speed of the fan is adjusted to the preset maximum rotation speed.
Specifically, if the first temperature is determined to be greater than or equal to the preset threshold, the first rotating speed is determined to be less than the preset maximum rotating speed, and the first mode is determined to be the down-blowing mode, the rotating speed of the fan is adjusted, and the rotating speed of the fan is adjusted from the first rotating speed to the preset maximum rotating speed.
Then, after a fourth time, obtaining an eighth temperature of the evaporator; and if the eighth temperature is determined to be greater than or equal to the preset threshold value, starting a preset overheat protection mechanism.
Specifically, after the fourth time elapses, an eighth temperature of the evaporator is acquired; and comparing the eighth temperature with a preset temperature, and if the eighth temperature is determined to be greater than or equal to a preset threshold, starting a preset overheat protection mechanism. Further, if it is determined that the eighth temperature is smaller than the preset threshold, the step 301 is continuously executed.
In one implementation, if it is determined that the first temperature is greater than or equal to the preset threshold, the first rotation speed is determined to be equal to the preset maximum rotation speed, and the first mode is determined to be the blow-down mode, a preset overheat protection mechanism is started.
Specifically, if it is determined that the first temperature is greater than or equal to the preset threshold, the first rotation speed is equal to the preset maximum rotation speed, and the first mode is the down-blowing mode, the mode of the air deflector and the rotation speed of the fan do not need to be adjusted, and the preset overheat protection mechanism is directly started.
Fig. 4 is a schematic structural diagram of a first control device for overheat protection of an air conditioner according to an embodiment of the present application. As shown in fig. 4, the control device 400 for overheat protection of an air conditioner includes:
the obtaining unit 410 is configured to obtain a first temperature of an evaporator in an indoor unit of an air conditioner, a first mode of an air deflector in the indoor unit, and a first rotation speed of a fan in the indoor unit;
the adjusting unit 420 is configured to adjust the mode of the air deflector and the rotation speed of the fan according to the first mode and the first rotation speed if it is determined that the first temperature is greater than or equal to the preset threshold, and obtain a second temperature of the evaporator;
the starting unit 430 is configured to start a preset overheat protection mechanism if it is determined that the second temperature is greater than or equal to the preset threshold.
Fig. 5 is a schematic structural diagram of a second control device for overheat protection of an air conditioner according to an embodiment of the present application. As shown in fig. 5, in the control device 500 for overheat protection of an air conditioner based on the above embodiment, the adjusting unit 420 further includes:
the first adjusting module 421 is configured to adjust the rotation speed of the fan to a preset maximum rotation speed if it is determined that the first rotation speed is less than the preset maximum rotation speed of the fan;
after the first time, acquiring a third temperature of the evaporator; if the third temperature is determined to be smaller than the preset threshold value, adjusting the rotating speed of the fan to be the first rotating speed;
or if the third temperature is determined to be greater than or equal to the preset threshold value and the first mode is determined not to be the downward blowing mode, adjusting the mode of the air deflector to be the downward blowing mode;
after the second time, acquiring a fourth temperature of the evaporator;
and if the fourth temperature is smaller than the preset threshold value, the mode of the air deflector is recovered to the first mode.
The first adjusting module 421 is further configured to adjust the mode of the air deflector to the down-blowing mode if it is determined that the first temperature is greater than or equal to the preset threshold, it is determined that the first rotation speed is equal to the preset maximum rotation speed, and it is determined that the first mode is not the down-blowing mode;
after the second time, acquiring a fifth temperature of the evaporator; if the fifth temperature is smaller than the preset threshold value, the mode of the air deflector is restored to the first mode;
or if the fifth temperature is determined to be greater than or equal to the preset threshold, starting a preset overheat protection mechanism.
The first adjusting module 421 is further configured to start a preset overheat protection mechanism if it is determined that the first temperature is greater than or equal to the preset threshold, the first rotation speed is equal to the preset maximum rotation speed, and the first mode is the down-blowing mode.
The adjusting unit 420 further includes:
a second adjusting module 422, configured to adjust the mode of the air deflector to the down-blowing mode if it is determined that the first mode is not the down-blowing mode;
after the third time, acquiring a sixth temperature of the evaporator; if the sixth temperature is smaller than the preset threshold value, the mode of the air deflector is restored to the first mode;
or if the sixth temperature is determined to be greater than or equal to the preset threshold value and the first rotating speed is determined to be less than the preset maximum rotating speed of the fan, adjusting the rotating speed of the fan to the preset maximum rotating speed;
after the fourth time, acquiring a seventh temperature;
and if the seventh temperature is determined to be smaller than the preset threshold value, the mode of the air deflector is restored to the first mode.
The second adjusting module 422 is further configured to adjust the rotation speed of the fan to a preset maximum rotation speed if it is determined that the first temperature is greater than or equal to the preset threshold, the first rotation speed is less than the preset maximum rotation speed, and the first mode is determined to be the down-blowing mode;
after the fourth time, acquiring an eighth temperature of the evaporator; and if the eighth temperature is determined to be greater than or equal to the preset threshold value, starting a preset overheat protection mechanism.
The second adjusting module 422 is further configured to start a preset overheat protection mechanism if it is determined that the first temperature is greater than or equal to the preset threshold, the first rotation speed is determined to be equal to the preset maximum rotation speed, and the first mode is determined to be the down-blowing mode.
In one implementation, the preset overheat protection mechanism includes one or more of the following combinations: reducing the frequency of a compressor in an outdoor unit of an air conditioner; and controlling the opening of a throttling device in the outdoor unit.
The control device for air conditioner overheating protection provided in the embodiment of the present application can be used to execute the control method for air conditioner overheating protection in any embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
It should be noted that the division of each unit of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these units can be implemented entirely in software, invoked by a processing element; or may be implemented entirely in hardware; and part of the units can be realized in the form of calling software by the processing element, and part of the units can be realized in the form of hardware. In addition, all or part of the units can be integrated together or can be independently realized. The processing element here may be an integrated circuit with signal processing capabilities. In implementation, the steps of the method or the units above may be implemented by hardware integrated logic circuits in a processor element or instructions in software.
Fig. 6 is a schematic structural diagram of an air conditioner according to an embodiment of the present application. As shown in fig. 6, the air conditioner may include: the processor 61, the memory 62 and computer program instructions stored on the memory 62 and operable on the processor 61, when the processor 61 executes the computer program instructions, the control method for overheat protection of the air conditioner provided by any one of the foregoing embodiments is implemented.
Optionally, the air conditioner may further include an interface for interacting with other devices.
Optionally, the above devices of the air conditioner may be connected by a system bus.
The memory 62 may be a separate memory unit or a memory unit integrated into the processor. The number of processors is one or more.
It should be understood that the Processor 61 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present application may be embodied directly in a hardware processor, or in a combination of the hardware and software modules in the processor.
The system bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The system bus may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus. The memory may include a Random Access Memory (RAM) and may also include a non-volatile memory (NVM), such as at least one disk memory.
All or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The aforementioned program may be stored in a readable memory. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned memory (storage medium) includes: read-only memory (ROM), RAM, flash memory, hard disk, solid state disk, magnetic tape (magnetic tape), floppy disk (optical disk), and any combination thereof.
The air conditioner provided by the embodiment of the application can be used for executing the control method for the air conditioner overheating protection provided by any method embodiment, the implementation principle and the technical effect are similar, and the description is omitted here.
The embodiment of the application provides a computer-readable storage medium, wherein computer instructions are stored in the computer-readable storage medium, and when the computer instructions are run on a computer, the computer is enabled to execute the control method for the air conditioner overheating protection.
The computer-readable storage medium may be any type of volatile or non-volatile storage device or combination thereof, such as static random access memory, electrically erasable programmable read only memory, magnetic memory, flash memory, magnetic or optical disk. A readable storage medium may be any available medium that can be accessed by a general purpose or special purpose computer.
Alternatively, a readable storage medium may be coupled to the processor such that the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the readable storage medium may also reside as discrete components in the apparatus.
The embodiment of the application also provides a computer program product, the computer program product comprises a computer program, the computer program is stored in a computer readable storage medium, the computer program can be read from the computer readable storage medium by at least one processor, and the control method of the air conditioner overheating protection can be realized when the computer program is executed by the at least one processor.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.
Claims (12)
1. A control method for air conditioner overheating protection is characterized by comprising the following steps:
acquiring a first temperature of an evaporator in an indoor unit of the air conditioner, a first mode of an air deflector in the indoor unit and a first rotating speed of a fan in the indoor unit;
if the first temperature is determined to be greater than or equal to a preset threshold value, adjusting the mode of the air deflector and the rotating speed of the fan according to the first mode and the first rotating speed, and acquiring a second temperature of the evaporator;
and if the second temperature is determined to be greater than or equal to the preset threshold value, starting a preset overheat protection mechanism.
2. The method of claim 1, wherein adjusting the mode of the air deflector and the speed of the fan and obtaining the second temperature of the evaporator based on the first mode and the first speed comprises:
if the first rotating speed is determined to be smaller than the preset highest rotating speed of the fan, adjusting the rotating speed of the fan to the preset highest rotating speed;
obtaining a third temperature of the evaporator after the first time;
if the third temperature is determined to be lower than the preset threshold value, adjusting the rotating speed of the fan to the first rotating speed;
or,
if the third temperature is determined to be greater than or equal to the preset threshold value and the first mode is determined not to be the downward blowing mode, adjusting the mode of the air deflector to be the downward blowing mode;
after a second time, acquiring a fourth temperature of the evaporator;
the method further comprises the following steps: if the fourth temperature is smaller than the preset threshold value, the mode of the air deflector is restored to the first mode.
3. The method of claim 2, wherein the mode of the air deflection panel is adjusted to the blow-down mode if it is determined that the first temperature is greater than or equal to the predetermined threshold, and it is determined that the first rotational speed is equal to the predetermined maximum rotational speed, and it is determined that the first mode is not the blow-down mode;
obtaining a fifth temperature of the evaporator after the second time;
if the fifth temperature is determined to be smaller than the preset threshold value, the mode of the air deflector is restored to the first mode;
or,
and if the fifth temperature is determined to be greater than or equal to a preset threshold value, starting the preset overheat protection mechanism.
4. The method of claim 2, wherein the predetermined over-temperature protection mechanism is initiated if the first temperature is determined to be greater than or equal to a predetermined threshold, the first rotational speed is determined to be equal to the predetermined maximum rotational speed, and the first mode is determined to be a blow-down mode.
5. The method of claim 1, wherein adjusting the mode of the air deflector and the speed of the fan and obtaining the second temperature of the evaporator based on the first mode and the first speed further comprises:
if the first mode is determined not to be the down-blowing mode, adjusting the mode of the air deflector to be the down-blowing mode;
after a third time, obtaining a sixth temperature of the evaporator;
if the sixth temperature is determined to be smaller than the preset threshold, the mode of the air deflector is restored to the first mode;
or,
if the sixth temperature is determined to be greater than or equal to the preset threshold value and the first rotating speed is determined to be less than the preset highest rotating speed of the fan, adjusting the rotating speed of the fan to the preset highest rotating speed;
after a fourth time, acquiring a seventh temperature of the evaporator;
the method further comprises the following steps: if the seventh temperature is determined to be smaller than the preset threshold value, the mode of the air deflector is restored to the first mode.
6. The method of claim 5, wherein if it is determined that the first temperature is greater than or equal to the preset threshold, and it is determined that the first rotational speed is less than the preset maximum rotational speed, and it is determined that the first mode is a down-blowing mode, adjusting the rotational speed of the fan to the preset maximum rotational speed;
acquiring an eighth temperature of the evaporator after the fourth time; and if the eighth temperature is determined to be greater than or equal to the preset threshold value, starting the preset overheat protection mechanism.
7. The method of claim 5, wherein the predetermined over-temperature protection mechanism is activated if the first temperature is determined to be greater than or equal to the predetermined threshold, the first rotational speed is determined to be equal to the predetermined maximum rotational speed, and the first mode is determined to be a blow-down mode.
8. The method according to any one of claims 1 to 7, wherein the predetermined overheat protection mechanism comprises one or more of the following combinations: reducing the frequency of a compressor in an outdoor unit of the air conditioner; and controlling the opening of a throttling device in the outdoor unit.
9. A control device for overheat protection of an air conditioner, comprising:
the air conditioner comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring a first temperature of an evaporator in an indoor unit of the air conditioner, a first mode of an air deflector in the indoor unit and a first rotating speed of a fan in the indoor unit;
the adjusting unit is used for adjusting the mode of the air deflector and the rotating speed of the fan according to the first mode and the first rotating speed and acquiring a second temperature of the evaporator if the first temperature is determined to be greater than or equal to a preset threshold value;
and the starting unit is used for starting a preset overheat protection mechanism if the second temperature is determined to be greater than or equal to a preset threshold value.
10. An air conditioner is characterized by comprising a memory and a processor; wherein,
the memory for storing a computer program;
the processor is configured to read the computer program stored in the memory and execute the method of any one of claims 1 to 8 according to the computer program in the memory.
11. A computer-readable storage medium having computer-executable instructions stored thereon which, when executed by a processor, perform the method of any one of claims 1-8.
12. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, carries out the method of any one of the preceding claims 1-8.
Priority Applications (2)
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CN202210916926.XA CN115540196B (en) | 2022-08-01 | 2022-08-01 | Control method and device for overheat protection of air conditioner and air conditioner |
PCT/CN2023/075947 WO2024027129A1 (en) | 2022-08-01 | 2023-02-14 | Control method and apparatus for air conditioner overheat protection, and air conditioner |
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CN202210916926.XA CN115540196B (en) | 2022-08-01 | 2022-08-01 | Control method and device for overheat protection of air conditioner and air conditioner |
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Cited By (1)
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WO2024027129A1 (en) * | 2022-08-01 | 2024-02-08 | 青岛海尔空调器有限总公司 | Control method and apparatus for air conditioner overheat protection, and air conditioner |
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CN115540196B (en) * | 2022-08-01 | 2023-12-15 | 青岛海尔空调器有限总公司 | Control method and device for overheat protection of air conditioner and air conditioner |
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