CN114623564A - Air conditioner and refrigeration method - Google Patents

Air conditioner and refrigeration method Download PDF

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Publication number
CN114623564A
CN114623564A CN202210428320.1A CN202210428320A CN114623564A CN 114623564 A CN114623564 A CN 114623564A CN 202210428320 A CN202210428320 A CN 202210428320A CN 114623564 A CN114623564 A CN 114623564A
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China
Prior art keywords
operation mode
temperature value
controlling
fan
air conditioner
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Pending
Application number
CN202210428320.1A
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Chinese (zh)
Inventor
寇永春
符龙
钟浩
邓婷
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Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
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Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
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Priority to CN202210428320.1A priority Critical patent/CN114623564A/en
Publication of CN114623564A publication Critical patent/CN114623564A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/003—Ventilation in combination with air cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides an air conditioner and a refrigeration method. The air conditioner includes: the shell is provided with an air inlet, an air outlet and a fresh air inlet; the heat exchanger is arranged in the shell and used for exchanging heat with air flow entering the shell through the air inlet; the first fan is arranged in the shell and is opposite to the air inlet; the second fan is arranged in the shell and is opposite to the fresh air inlet; the air conditioning device has a first operation mode and a second operation mode, and when the indoor temperature value is greater than or equal to the outdoor temperature value, the first fan is controlled to stop operating, and the second fan is controlled to operate, so that the air conditioning device is in the first operation mode; and when the indoor temperature value is smaller than the outdoor temperature value, controlling the first fan to operate and the second fan to stop operating so as to enable the air conditioning device to be in a second operation mode. The invention effectively solves the problem that the air conditioner in the base station has larger power consumption in the prior art.

Description

Air conditioner and refrigeration method
Technical Field
The invention relates to the technical field of air conditioning devices, in particular to an air conditioning device and a refrigeration method.
Background
At present, an air conditioner is generally used for cooling and cooling equipment located inside a base station. Specifically, the air conditioner is controlled to be in a cooling mode, and the indoor air is cooled by a heat exchanger of the air conditioner and then discharged into the room again so as to cool and cool the equipment located indoors (inside the base station).
However, in the long-term use of the air conditioner, the compressor needs to be frequently started to cool the indoor air, which results in high electric energy consumption of the base station. Meanwhile, in the long-term use process of the base station, because the indoor environment is closed, the indoor air cleanliness is poor, and equipment in the base station and a heat exchanger of an air conditioning device are easy to store dirt and dirty, so that the service life is influenced.
Disclosure of Invention
The invention mainly aims to provide an air conditioner and a refrigeration method, and aims to solve the problem that the power consumption of the air conditioner in a base station is large in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided an air conditioning device including: a casing having an air inlet, an air outlet and a fresh air inlet; the heat exchanger is arranged in the shell and used for exchanging heat with air flow entering the shell through the air inlet; the first fan is arranged in the shell and is opposite to the air inlet; the second fan is arranged in the shell and is opposite to the fresh air inlet; the air conditioning device has a first operation mode and a second operation mode, and when the indoor temperature value is greater than or equal to the outdoor temperature value, the first fan is controlled to stop operating, and the second fan is controlled to operate, so that the air conditioning device is in the first operation mode; and when the indoor temperature value is smaller than the outdoor temperature value, controlling the first fan to operate and the second fan to stop operating so as to enable the air conditioning device to be in a second operation mode.
Furthermore, the number of the first fan is one; or the first fans are arranged at intervals along the height direction of the shell.
Further, the air conditioning apparatus further includes: the indoor temperature detection device is arranged in a room where the air conditioning device is located and used for detecting an indoor temperature value; the outdoor temperature detection device is arranged outdoors and used for detecting an outdoor temperature value; when the indoor temperature value is greater than or equal to the outdoor temperature value and the indoor temperature value is greater than a first preset temperature value, the air conditioning device is controlled to be in a first operation mode.
Further, the air conditioning apparatus further includes: the control valve is arranged at the fresh air inlet and used for controlling the on-off state between the fresh air inlet and the inner cavity of the shell; or, the air conditioner is used for controlling the on-off state of the fresh air inlet and the outdoor; wherein, when the air conditioner is in the first operation mode, the control valve is in an open state; when the air conditioner is in the second operation mode, the control valve is in a closed state.
According to another aspect of the present invention, there is provided a refrigeration method applied to the above air conditioner, the refrigeration method including: judging the relation between the indoor temperature value and the outdoor temperature value; and controlling the air conditioning device to be in a first operation mode or a second operation mode according to the relation between the indoor temperature value and the outdoor temperature value.
Further, the method for controlling the air conditioner to be in the first operation mode or the second operation mode according to the relationship between the indoor temperature value and the outdoor temperature value includes: when the indoor temperature value is greater than a first preset temperature value and the indoor temperature value is greater than or equal to the outdoor temperature value, controlling the air conditioning device to be in a first operation mode; or when the indoor temperature value is greater than the first preset temperature value and the temperature difference value between the indoor temperature value and the outdoor temperature value is a preset temperature difference value, controlling the air conditioning device to be in a first operation mode; when the indoor temperature value is greater than or equal to a second preset temperature value and the indoor temperature value is less than the outdoor temperature value, controlling the air conditioning device to be in a second operation mode; the second preset temperature value is greater than the first preset temperature value.
Further, when the air conditioner is in the first operation mode, the refrigeration method further comprises the following steps: and controlling the fresh air inlet quantity of the air conditioning device according to the preset temperature difference value.
Further, the method for controlling the fresh air intake amount of the air conditioner includes: and adjusting the rotating speed r of a second fan of the air conditioning device.
Further, the method for controlling the fresh air inlet amount of the air conditioning device according to the preset temperature difference value comprises the following steps: when the preset temperature difference value is less than or equal to the first temperature difference value T1While controlling the second fan to rotate at the first speed r1Running; when the preset temperature difference value is larger than the first temperature difference value T1And is less than or equal to the second temperature difference value T2While controlling the second fan to rotate at a second rotating speed r2Running; when the preset temperature difference value is larger than the second temperature difference value T2And less than or equal to a third temperature difference value T3While controlling the second fan to rotate at a third speed r3Running; when the preset temperature difference value is larger than the third temperature difference value T3And less than or equal to a fourth temperature difference value T4While controlling the second fan to rotate at a fourth speed r4Running; when the preset temperature difference value is larger than the fourth temperature difference value T4And is less than or equal to the fifth temperature difference value T5While controlling the second fan to rotate at a fifth rotating speed r5Running; wherein, satisfy the relation: t is1＜T2＜T3＜T4＜T5，r1＜r2＜r3＜r4＜r5。
Further, when the air conditioner is in the second operation mode, the refrigeration method further comprises the following steps: judging the relation between the time length of the air conditioner in the second operation mode and a first preset time length; and controlling the air conditioning device to be switched from the second operation mode to the first operation mode according to the relation between the time length of the air conditioning device in the second operation mode and the first preset time length.
Further, the method for controlling the air conditioner to switch from the second operation mode to the first operation mode according to the relationship between the time length of the air conditioner in the second operation mode and the first preset time length comprises the following steps: step S1: when the time length of the air conditioner in the second operation mode reaches a first preset time length, controlling the air conditioner to be switched from the second operation mode to the first operation mode and starting timing; step S2: and when the time length of the air conditioner in the first operation mode reaches a second preset time length, controlling the air conditioner to switch from the first operation mode to the second operation mode and starting timing, and repeating the step S1.
By applying the technical scheme of the invention, the air conditioner is automatically controlled to be in the first operation mode or the second operation mode according to the magnitude relation between the indoor temperature value and the outdoor temperature value in the operation process of the base station. When the air conditioner is in the first operation mode, the first fan stops operating and the second fan operates, the compressor of the air conditioner does not need to operate at the moment, fresh air located outdoors enters the shell through the fresh air inlet under the suction effect of the second fan, and is discharged indoors through the air outlet, and the outdoor temperature is lower than the indoor temperature, so that the indoor temperature can be reduced.
Compared with the continuous operation of the compressor in the prior art, the air conditioner adjusts the operation mode of the air conditioner according to the relation between the indoor temperature value and the outdoor temperature value, so that the operation time of the compressor is prolonged, the problem that the power consumption of the air conditioner in the base station is large in the prior art is solved, and the power consumption of the base station is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a cross-sectional view of an embodiment of an air conditioning device according to the invention;
fig. 2 shows a front view of the air conditioning device of fig. 1;
fig. 3 shows a flow chart of an embodiment of the refrigeration method according to the invention.
Wherein the figures include the following reference numerals:
10. a housing; 11. an air outlet; 12. a fresh air inlet; 20. a heat exchanger; 30. a first fan; 40. a second fan; 50. a control valve; 60. and (4) a filtering device.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present invention, unless stated to the contrary, the use of directional terms such as "up" and "down" are generally with respect to the orientation shown in the drawings, or to the vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; "inner and outer" refer to the inner and outer relative to the profile of the respective member itself, but the above directional terms are not intended to limit the present invention.
In order to solve the problem that the power consumption of an air conditioner in a base station is large in the prior art, the application provides the air conditioner and a refrigeration method.
As shown in fig. 1 and 2, the air conditioner includes a cabinet 10, a heat exchanger 20, a first fan 30, and a second fan 40. The casing 10 has an air inlet, an air outlet 11 and a fresh air inlet 12. A heat exchanger 20 is disposed within the enclosure 10 for exchanging heat with the airflow entering the enclosure 10 via the air intake. The first fan 30 is disposed in the casing 10 and opposite to the air inlet. The second fan 40 is disposed in the casing 10 and opposite to the fresh air inlet 12. The air conditioner has a first operation mode and a second operation mode, and when the indoor temperature value is greater than or equal to the outdoor temperature value, the first fan 30 is controlled to stop operating, and the second fan 40 is controlled to operate, so that the air conditioner is in the first operation mode. And when the indoor temperature value is less than the outdoor temperature value, controlling the first fan 30 to operate and the second fan 40 to stop operating so as to enable the air conditioner to be in a second operation mode.
By applying the technical scheme of the embodiment, in the operation process of the base station, the air conditioner is automatically controlled to be in the first operation mode or the second operation mode according to the magnitude relation between the indoor temperature value and the outdoor temperature value. Wherein, when air conditioner is in first mode of operation, first fan 30 stall and the operation of second fan 40, and air conditioner's compressor need not the operation this moment, and under the suction effect of second fan 40, be located in outdoor new trend gets into in the casing 10 via entering fresh air inlet 12 to discharge indoor through air outlet 11, because outdoor temperature is less than indoor temperature, and then can cool down indoor.
Compared with the prior art that the compressor needs to operate continuously, the air conditioner adjusts the operation mode of the air conditioner according to the relation between the indoor temperature value and the outdoor temperature value so as to reduce the operation time of the compressor, further solve the problem that the power consumption of the air conditioner in the base station is large in the prior art, and reduce the power consumption of the base station.
In this embodiment, when air conditioning equipment was in first mode of operation, not only can be through outdoor new trend to indoor cooling, also can improve the room air quality through the mode of introducing the new trend.
Optionally, there is one first fan 30; alternatively, there are a plurality of first fans 30, and the plurality of first fans 30 are disposed at intervals along the height direction of the cabinet 10. Like this, above-mentioned setting makes the number of first fan 30 select more nimble to satisfy different user demand and operating mode, also promoted staff's processing flexibility.
In this embodiment, the number of the first fans 30 is two, the two first fans 30 are arranged at intervals along the height direction of the casing 10, and the two first fans 30 are both arranged opposite to the heat exchanger 20, so as to ensure that the air entering the casing 10 from the air inlet can be cooled by the heat exchanger 20 and then discharged into the room through the air outlet 11.
It should be noted that the number of the first fans 30 is not limited to this, and may be adjusted according to the working condition and the use requirement. Optionally, the first fan 30 is three, or four, or five, or more.
Optionally, there is one second fan 40; alternatively, the number of the second fans 40 is plural, and the plural second fans 40 are disposed at intervals in the height direction of the cabinet 10. Like this, above-mentioned setting makes the number of second fan 40 select more nimble to satisfy different user demand and operating mode, also promoted staff's processing flexibility.
In this embodiment, the number of the second fans 40 is one, one second fan 40 is located below the two first fans 30, and the fresh air inlet 12 is located below the air inlet, so that the air conditioner is simpler in structure, easy to process and implement, and the processing cost of the air conditioner is reduced. Thus, the above arrangement ensures that the gas introduced into the casing 10 through the fresh air inlet can be discharged into the room through the air outlet 11.
It should be noted that the position relationship between the air inlet and the fresh air inlet 12 is not limited to this, and can be adjusted according to the working condition and the use requirement. In other embodiments not shown in the drawings, the air intake is located below the fresh air intake.
In this embodiment, the air conditioner further includes an indoor temperature detection device and an outdoor temperature detection device. The indoor temperature detection device is arranged in a room where the air conditioning device is located and used for detecting an indoor temperature value. The outdoor temperature detection device is arranged outdoors and used for detecting an outdoor temperature value. When the indoor temperature value is greater than or equal to the outdoor temperature value and the indoor temperature value is greater than a first preset temperature value, the air conditioning device is controlled to be in a first operation mode. Therefore, the arrangement makes the detection of the indoor temperature and the outdoor temperature easier and simpler, and reduces the detection difficulty. Meanwhile, the automatic detection of indoor and outdoor temperatures is realized, and the intelligent degree of the air conditioning device is improved.
Optionally, the indoor temperature detecting means is a temperature sensor.
Optionally, the outdoor temperature detecting means is a temperature sensor.
Optionally, the air conditioning apparatus further comprises a control valve 50. The control valve 50 is arranged at the fresh air inlet 12 and used for controlling the on-off state between the fresh air inlet 12 and the inner cavity of the machine shell 10; or the air inlet 12 is used for controlling the on-off state with the outside. Wherein, when the air conditioning apparatus is in the first operation mode, the control valve 50 is in an open state; when the air conditioning apparatus is in the second operating mode, the control valve 50 is in a closed state. Thus, when the indoor temperature value is smaller than the outdoor temperature value, the control valve 50 is in a closed state, thereby preventing outdoor hot air from entering the room to further increase the indoor temperature, and improving the sealing reliability of the fresh air inlet.
In this embodiment, the control valve 50 is disposed at the fresh air inlet 12 for controlling the on-off state between the fresh air inlet 12 and the inner cavity of the casing 10.
Optionally, the control valve 50 is a normally closed control valve.
As shown in fig. 1, the air conditioner further includes a filter device 60. Wherein, the filtering device 60 is arranged at the fresh air inlet 12 for filtering impurities in the fresh air.
As shown in fig. 3, the present application further provides a refrigeration method, which is suitable for the air conditioner, and the refrigeration method includes:
judging the relation between the indoor temperature value and the outdoor temperature value;
and controlling the air conditioning device to be in a first operation mode or a second operation mode according to the relation between the indoor temperature value and the outdoor temperature value.
Specifically, in the operation process of the base station, the air conditioner is automatically controlled to be in the first operation mode or the second operation mode according to the magnitude relation between the indoor temperature value and the outdoor temperature value. When the air conditioner is in the first operation mode, the compressor of the air conditioner does not need to operate, fresh air located outdoors enters the machine shell 10 through the fresh air inlet 12 and is discharged indoors through the air outlet 11, and the outdoor temperature is lower than the indoor temperature, so that the indoor temperature can be reduced. Compared with the prior art that the compressor needs to operate continuously, the air conditioner adjusts the operation mode of the air conditioner according to the relation between the indoor temperature value and the outdoor temperature value so as to reduce the operation time of the compressor, further solve the problem that the power consumption of the air conditioner in the base station is large in the prior art, and reduce the power consumption of the base station.
In this embodiment, the method of controlling the air conditioner to be in the first operation mode or the second operation mode according to the relationship between the indoor temperature value and the outdoor temperature value includes:
when the indoor temperature value is greater than a first preset temperature value and the indoor temperature value is greater than or equal to the outdoor temperature value, controlling the air conditioning device to be in a first operation mode; alternatively, the first and second electrodes may be,
when the indoor temperature value is greater than a first preset temperature value and the temperature difference value between the indoor temperature value and the outdoor temperature value is a preset temperature difference value, controlling the air conditioning device to be in a first operation mode;
and when the indoor temperature value is greater than or equal to a second preset temperature value and the indoor temperature value is less than the outdoor temperature value, controlling the air conditioning device to be in a second operation mode. The second preset temperature value is greater than the first preset temperature value.
Optionally, the first preset temperature value is 23 ℃ and the second preset temperature value is 25 ℃. Specifically, when the indoor temperature value is greater than 23 ℃ and the indoor temperature value is greater than or equal to the outdoor temperature value; or when the indoor temperature value is greater than 23 ℃ and the temperature difference value between the indoor temperature value and the outdoor temperature value is a preset temperature difference value, the air conditioning device is controlled to be in the first operation mode, and at the moment, the control valve 50 is in an open state, so that outdoor low-temperature fresh air enters the room, cools the room and improves the quality of the indoor air. And when the indoor temperature value is greater than or equal to 25 ℃ and the indoor temperature value is less than the outdoor temperature value, controlling the air conditioning device to be in a second operation mode, and not introducing fresh air at the moment.
In this embodiment, when the air conditioner is in the first operation mode, the cooling method further includes: and controlling the fresh air inlet quantity of the air conditioning device according to the preset temperature difference value.
Specifically, when the preset temperature difference value is small, the fresh air inlet quantity of the air conditioning device is increased so as to realize rapid cooling; when the preset temperature difference value is large, the fresh air inlet amount of the air conditioning device is reduced to reduce the energy consumption of the second fan 40.
In this embodiment, a method of controlling an intake air volume of an air conditioner includes: the rotational speed r of the second fan 40 of the air conditioner is adjusted.
Specifically, the larger the rotation speed r of the second fan 40 is, the larger the fresh air inlet amount of the air conditioner is, and vice versa, so that the fresh air inlet amount of the air conditioner is easier and simpler to adjust, and the adjustment difficulty is reduced.
Optionally, the method for controlling the fresh air intake amount of the air conditioner according to the preset temperature difference value includes:
when the preset temperature difference value is less than or equal to the first temperature difference value T1While controlling the second fan 40 to rotate at the first speed r1Running;
when the preset temperature difference value is larger than the first temperature difference value T1And is less than or equal to the second temperature difference value T2While controlling the second fan 40 to rotate at the second rotation speed r2Running;
when the preset temperature difference value is larger than the second temperature difference value T2And less than or equal to a third temperature difference value T3While controlling the second fan 40 to rotate at the third rotation speed r3Running;
when the preset temperature difference value is larger than the third temperature difference value T3And less than or equal to a fourth temperature difference value T4While controlling the second fan 40 to rotate at the fourth rotation speed r4Running;
when the preset temperature difference value is larger than the fourth temperature difference value T4And is less than or equal to the fifth temperature difference value T5While controlling the second fan 40 to rotate at the fifth speed r5And (5) operating. Wherein, satisfy the relation: t is1＜T2＜T3＜T4＜T5，r1＜r2＜r3＜r4＜r5。
In the present embodiment, T1Is at 3 ℃ and T2At 5 ℃ and T3At a temperature of 8 ℃ and T4At 10 ℃ and T5It was 15 ℃. Different rotational speeds r of the second fan 40 correspond to different operating gears. Specifically, table 1 shows the operating ranges of the second fan 40 corresponding to different preset temperature difference values. And when the preset temperature difference value is less than or equal to 3 ℃, controlling the second fan 40 to operate at an ultra-strong gear. And when the preset temperature difference value is greater than 3 ℃ and less than or equal to the second temperature difference value of 5 ℃, controlling the second fan 40 to operate at a high wind gear. And when the preset temperature difference value is greater than 5 ℃ and less than or equal to 8 ℃, controlling the second fan 40 to operate at a medium wind gear. And when the preset temperature difference value is greater than 8 ℃ and less than or equal to 10 ℃, controlling the second fan 40 to operate at a low wind gear. And when the preset temperature difference value is greater than 10 ℃ and less than or equal to 15 ℃, controlling the second fan 40 to operate in a mute gear, and further realizing rapid cooling on the premise of reducing the energy consumption of the second fan 40.
TABLE 1 running gear of the second fan corresponding to different preset temperature difference values
Figure BDA0003610737280000071
Note that T is1、T2、T3、T4And T5The value of (b) is not limited to this, and can be adjusted according to the working condition and the use requirement. Alternatively, T1At a temperature of 4 ℃ and T2At 6 ℃ and T3At a temperature of 9 ℃ and T4At a temperature of 11 ℃ and T5It was 16 ℃. Alternatively, T1At 2 ℃ and T2At a temperature of 4 ℃ and T3At 7 ℃ and T4At a temperature of 9 ℃ and T5It was 14 ℃.
In this embodiment, when the air conditioner is in the second operation mode, the cooling method further includes:
judging the relation between the time length of the air conditioning device in the second operation mode and a first preset time length;
and controlling the air conditioning device to be switched from the second operation mode to the first operation mode according to the relation between the time length of the air conditioning device in the second operation mode and the first preset time length.
Specifically, in the long-time operation process of the air conditioner, the air conditioner is controlled to enter fresh air according to the time length when the air conditioner is in the second operation mode, so that the air cleanliness inside the substrate is ensured.
In the present embodiment, the first preset time period is 120 h.
It should be noted that the value of the first preset time period is not limited to this, and may be adjusted according to the working condition and the use requirement. Optionally, the first preset time period is 80h, or 90h, or 100h, or 110h, or 130h, or 140h, or 150 h.
In the embodiment, the method for controlling the air conditioner to switch from the second operation mode to the first operation mode according to the relationship between the time length of the air conditioner in the second operation mode and the first preset time length comprises the following steps:
step S1: when the time length of the air conditioner in the second operation mode reaches a first preset time length, controlling the air conditioner to be switched from the second operation mode to the first operation mode and starting timing;
step S2: and when the time length of the air conditioner in the first operation mode reaches a second preset time length, controlling the air conditioner to switch from the first operation mode to the second operation mode and starting timing, and repeating the step S1.
In the present embodiment, the second preset time period is 1 h.
It should be noted that the value of the second preset time period is not limited to this, and may be adjusted according to the working condition and the use requirement. Optionally, the second preset time period is 1.5h, or 2h, or 2.5h, or 3h, or 3.5h, or 4h, or 5 h.
Specifically, when the second operation mode is operated for 120 hours in each cumulative operation, the air conditioning device enters the first operation mode, at this time, the control valve 50 is opened, the second fan 40 is started and then directly enters the middle wind gear, and the mode is maintained for 1 hour, and exits from the first operation mode after 1 hour.
In this embodiment, when the indoor temperature value is greater than or equal to the outdoor temperature value and the temperature difference between the indoor temperature value and the outdoor temperature value is 3 ℃, and the indoor temperature value is greater than 23 ℃, the air conditioning device enters the first operation mode, the compressor and the first fan 30 stop operating, the control valve 50 is opened, and the second fan 40 starts operating, so that the low-temperature air outside the base station is introduced to perform fresh air cooling, the energy consumption problem of low-temperature refrigeration of the air conditioner is effectively solved, and meanwhile, the hidden trouble of liquid impact of the compressor during low-temperature refrigeration is avoided. When the air conditioner is in the first operation mode, when the indoor temperature value is smaller than the outdoor temperature value and the temperature difference between the indoor temperature value and the outdoor temperature value is 3 ℃, the air conditioner is switched from the first operation mode to the second operation mode.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
and in the operation process of the base station, automatically controlling the air conditioner to be in a first operation mode or a second operation mode according to the magnitude relation between the indoor temperature value and the outdoor temperature value. When the air conditioner is in the first operation mode, the first fan stops operating and the second fan operates, the compressor of the air conditioner does not need to operate at the moment, fresh air located outdoors enters the shell through the fresh air inlet under the suction effect of the second fan, and is discharged indoors through the air outlet, and the outdoor temperature is lower than the indoor temperature, so that the indoor temperature can be reduced.
Compared with the continuous operation of the compressor in the prior art, the air conditioner adjusts the operation mode of the air conditioner according to the relation between the indoor temperature value and the outdoor temperature value, so that the operation time of the compressor is prolonged, the problem that the power consumption of the air conditioner in the base station is large in the prior art is solved, and the power consumption of the base station is reduced.
It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. 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 invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (11)

1. An air conditioning apparatus, comprising:
a casing (10) having an air inlet, an air outlet (11) and a fresh air inlet (12);
a heat exchanger (20), the heat exchanger (20) being arranged within the enclosure (10) for exchanging heat with an air flow entering the enclosure (10) via the air intake;
the first fan (30) is arranged in the shell (10) and is opposite to the air inlet;
the second fan (40) is arranged in the shell (10) and is opposite to the fresh air inlet (12);
the air conditioner is provided with a first operation mode and a second operation mode, and when the indoor temperature value is greater than or equal to the outdoor temperature value, the first fan (30) is controlled to stop operating, and the second fan (40) is controlled to operate, so that the air conditioner is in the first operation mode; and when the indoor temperature value is smaller than the outdoor temperature value, controlling the first fan (30) to operate and the second fan (40) to stop operating, wherein the air conditioning device is in the second operation mode.
2. Air conditioning unit, according to claim 1, characterized in that said first fan (30) is one; or, the number of the first fans (30) is multiple, and the first fans (30) are arranged at intervals along the height direction of the machine shell (10).
3. An air conditioning apparatus as set forth in claim 1, further comprising:
the indoor temperature detection device is arranged in a room where the air conditioning device is located and used for detecting an indoor temperature value;
an outdoor temperature detection device disposed outdoors for detecting an outdoor temperature value;
and when the indoor temperature value is greater than or equal to the outdoor temperature value and the indoor temperature value is greater than a first preset temperature value, controlling the air conditioner to be in the first operation mode.
4. The air conditioning apparatus as claimed in claim 1, further comprising:
the control valve (50) is arranged at the fresh air inlet (12) and used for controlling the on-off state between the fresh air inlet (12) and the inner cavity of the machine shell (10); or the air conditioner is used for controlling the on-off state of the fresh air inlet (12) and the outdoor;
wherein the control valve (50) is in an open state when the air conditioning unit is in the first operating mode; when the air conditioning unit is in the second operating mode, the control valve (50) is in a closed state.
5. A refrigeration method, which is applied to the air conditioning device according to any one of claims 1 to 4, the refrigeration method comprising:
judging the relation between the indoor temperature value and the outdoor temperature value;
and controlling the air conditioning device to be in a first operation mode or a second operation mode according to the relation between the indoor temperature value and the outdoor temperature value.
6. A cooling method according to claim 5, wherein the method of controlling the air conditioner to be in the first operation mode or the second operation mode according to the relationship between the indoor temperature value and the outdoor temperature value comprises:
when the indoor temperature value is greater than a first preset temperature value and the indoor temperature value is greater than or equal to the outdoor temperature value, controlling the air conditioning device to be in the first operation mode; alternatively, the first and second electrodes may be,
when the indoor temperature value is greater than a first preset temperature value and the temperature difference value between the indoor temperature value and the outdoor temperature value is a preset temperature difference value, controlling the air conditioning device to be in the first operation mode;
when the indoor temperature value is greater than or equal to a second preset temperature value and the indoor temperature value is less than the outdoor temperature value, controlling the air conditioner to be in the second operation mode;
wherein the second preset temperature value is greater than the first preset temperature value.
7. The refrigeration method of claim 6 wherein, when the air conditioning unit is in the first mode of operation, the refrigeration method further comprises:
and controlling the fresh air inlet quantity of the air conditioning device according to the preset temperature difference value.
8. A cooling method according to claim 7, wherein the method of controlling the amount of fresh air taken in the air conditioner includes:
and adjusting the rotating speed r of a second fan (40) of the air conditioning device.
9. A refrigerating method as recited in claim 8 wherein the method of controlling the amount of fresh air intake of the air conditioner according to the preset temperature difference value comprises:
when the preset temperature difference value is less than or equal to a first temperature difference value T1While controlling the firstThe two fans (40) rotate at a first speed r1Running;
when the preset temperature difference value is larger than the first temperature difference value T1And less than or equal to a second temperature difference value T2While controlling the second fan (40) to rotate at a second speed r2Running;
when the preset temperature difference value is larger than the second temperature difference value T2And is less than or equal to the third temperature difference value T3While controlling the second fan (40) to rotate at a third speed r3Running;
when the preset temperature difference value is larger than the third temperature difference value T3And less than or equal to a fourth temperature difference value T4While controlling the second fan (40) to rotate at a fourth speed r4Running;
when the preset temperature difference value is larger than the fourth temperature difference value T4And less than or equal to a fifth temperature difference value T5While controlling the second fan (40) to rotate at a fifth speed r5Running;
wherein, satisfy the relation: t is1＜T2＜T3＜T4＜T5，r1＜r2＜r3＜r4＜r5。
10. The refrigeration method as recited in claim 5 wherein when said air conditioning unit is in said second mode of operation, said refrigeration method further comprises:
judging the relation between the time length of the air conditioner in the second running mode and a first preset time length;
and controlling the air conditioning device to be switched from the second operation mode to the first operation mode according to the relation between the time length of the air conditioning device in the second operation mode and a first preset time length.
11. A refrigeration method according to claim 10, wherein the method of controlling the air conditioner to switch from the second operation mode to the first operation mode according to the relationship between the period of time the air conditioner is in the second operation mode and a first preset period of time includes:
step S1: when the time length of the air conditioner in the second operation mode reaches a first preset time length, controlling the air conditioner to be switched from the second operation mode to the first operation mode and starting timing;
step S2: and when the time length of the air conditioner in the first operation mode reaches a second preset time length, controlling the air conditioner to switch from the first operation mode to the second operation mode and start timing, and repeating the step S1.
CN202210428320.1A 2022-04-22 2022-04-22 Air conditioner and refrigeration method Pending CN114623564A (en)

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JPH05106906A (en) * 1991-10-17 1993-04-27 Hitachi Ltd Controller of air conditioner
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CN109357373A (en) * 2018-10-25 2019-02-19 青岛海尔空调器有限总公司 Air conditioner and its control method
CN109654655A (en) * 2018-12-11 2019-04-19 美的集团武汉制冷设备有限公司 Air conditioner and its control method, control device and readable storage medium storing program for executing
CN209459075U (en) * 2018-11-12 2019-10-01 青岛海尔空调器有限总公司 Air conditioner indoor unit
CN111426021A (en) * 2020-02-27 2020-07-17 青岛海尔空调电子有限公司 Air duct type air conditioner and operation control method and device thereof
CN114198860A (en) * 2021-12-17 2022-03-18 宁波奥克斯电气股份有限公司 Air conditioner control method and device and air conditioner

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05106906A (en) * 1991-10-17 1993-04-27 Hitachi Ltd Controller of air conditioner
CN105509161A (en) * 2016-01-27 2016-04-20 能节（北京）科技发展有限公司 Air source dual-operation split air conditioner and operation method thereof
CN109357373A (en) * 2018-10-25 2019-02-19 青岛海尔空调器有限总公司 Air conditioner and its control method
CN209459075U (en) * 2018-11-12 2019-10-01 青岛海尔空调器有限总公司 Air conditioner indoor unit
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Application publication date: 20220614