CN112303854B - Control method of suction air conditioner - Google Patents

Control method of suction air conditioner Download PDF

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Publication number
CN112303854B
CN112303854B CN202011196801.1A CN202011196801A CN112303854B CN 112303854 B CN112303854 B CN 112303854B CN 202011196801 A CN202011196801 A CN 202011196801A CN 112303854 B CN112303854 B CN 112303854B
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temperature
heat dissipation
frequency
indoor fan
electric cabinet
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CN112303854A (en
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熊长友
安超
刘守宇
孙超
曹志高
刘德帅
杨坤
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Priority to CN202011196801.1A priority Critical patent/CN112303854B/en
Publication of CN112303854A publication Critical patent/CN112303854A/en
Priority to PCT/CN2021/099543 priority patent/WO2021233463A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • 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
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • 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)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention belongs to the technical field of air conditioners, and particularly relates to a control method of an air suction type air conditioner. The invention aims to solve the problem that an electric control module of the existing air suction type air conditioner is easy to generate short circuit due to condensation under the refrigerating working condition. Therefore, the air suction type air conditioner comprises an indoor unit and an outdoor unit, wherein the indoor unit comprises an indoor heat exchanger and an indoor fan which are sequentially arranged along the air outlet direction, and an electric cabinet which is arranged at one side close to the indoor fan, a heat dissipation component is arranged on the electric cabinet, the outdoor unit comprises a variable frequency compressor, and the control method comprises the following steps: under the condition that the air conditioner operates under a refrigeration working condition, acquiring the temperature of a radiating component and the internal temperature of an electric cabinet; according to the temperature of the heat dissipation component and the internal temperature of the electric cabinet, the rotating speed of the indoor fan and/or the frequency of the variable frequency compressor are/is selectively adjusted, so that the problem that the electric control module is broken down or even burnt out due to condensation easily occurring on the heat dissipation component is avoided to the greatest extent, and the stable operation of the air conditioner is further ensured.

Description

吸风式空调器的控制方法Control method of suction air conditioner

技术领域technical field

本发明属于空调技术领域，具体涉及一种吸风式空调器的控制方法。The invention belongs to the technical field of air conditioning, and in particular relates to a control method of a suction air conditioner.

背景技术Background technique

现有吸风式空调器大多都设置有用于安装和保护各种电控模块的电控箱，由于受到其室内机的内部结构限制，现有吸风式空调器的电控箱都设置在靠近室内风机的一侧，因而导致电控箱不断与换热后的空气接触。同时，又由于电控箱中的各个电控模块在工作过程中均会不断产生热量，因而现有电控箱通常都设置有散热构件以更好地将箱体内部的热量传导至箱体外部。当吸风式空调器运行制冷模式时，这些散热构件不仅能将箱体内部的热量传导出去，而且还能够吸收室内换热器产生的冷量。如果散热构件从外部吸收的冷量大于其正在传导的热量就会导致散热构件的温度降低，而当散热构件的温度不断降低时，散热构件暴露在箱体内部的部分就很容易出现凝露，凝露的不断聚集将会导致箱体内部的湿度不断提升，甚至还会在箱体内部聚集出水；在这种高湿环境下，设置在电控箱中的电控模块工作时很容易出现故障，甚至还会直接导致短路烧毁的问题。Most of the existing suction air conditioners are equipped with electric control boxes for installing and protecting various electronic control modules. Due to the limitation of the internal structure of the indoor unit, the electric control boxes of the existing suction air conditioners are all installed near the One side of the indoor fan, thus causing the electric control box to be in constant contact with the air after heat exchange. At the same time, since each electric control module in the electric control box will continuously generate heat during the working process, the existing electric control boxes are usually equipped with heat dissipation components to better conduct the heat inside the box to the outside of the box. . When the suction air conditioner operates in the cooling mode, these heat dissipation components can not only conduct the heat inside the box, but also absorb the cold generated by the indoor heat exchanger. If the cooling absorbed by the heat dissipation component from the outside is greater than the heat it is conducting, the temperature of the heat dissipation component will drop, and when the temperature of the heat dissipation component continues to decrease, condensation will easily appear on the part of the heat dissipation component exposed inside the box. The continuous accumulation of condensation will lead to the continuous increase of the humidity inside the box, and even the accumulation of water inside the box; in this high-humidity environment, the electronic control module set in the electric control box is prone to failure when working , and even directly lead to the problem of short circuit burning.

相应地，本领域需要一种新的吸风式空调器的控制方法来解决上述问题。Correspondingly, there is a need in the art for a new control method for a suction air conditioner to solve the above problems.

发明内容Contents of the invention

为了解决现有技术中的上述问题，即为了解决现有吸风式空调器的电控模块容易在制冷工况下因凝露而出现短路的问题，本发明提供了一种吸风式空调器的控制方法，所述吸风式空调器包括相连的室内机和室外机，其中，所述室内机包括沿出风方向依次设置的室内换热器和室内风机以及设置在靠近所述室内风机一侧的电控箱，所述电控箱上设置有散热构件，所述室外机包括变频压缩机，所述控制方法包括：在所述空调器运行制冷工况的情形下，获取所述散热构件的温度和所述电控箱的内部温度；根据所述散热构件的温度和所述电控箱的内部温度，选择性地调节所述室内风机的转速和/或所述变频压缩机的频率。In order to solve the above problems in the prior art, that is, to solve the problem that the electric control module of the existing suction air conditioner is prone to short circuit due to condensation under cooling conditions, the present invention provides a suction air conditioner According to the control method, the suction-type air conditioner includes a connected indoor unit and an outdoor unit, wherein the indoor unit includes an indoor heat exchanger and an indoor fan arranged in sequence along the air outlet direction, and an indoor fan arranged near the indoor fan The electric control box on the side, the electric control box is provided with heat dissipation components, the outdoor unit includes an inverter compressor, and the control method includes: when the air conditioner is running in cooling mode, obtaining the heat dissipation component and the internal temperature of the electric control box; according to the temperature of the heat dissipation member and the internal temperature of the electric control box, selectively adjust the rotational speed of the indoor fan and/or the frequency of the variable frequency compressor.

在上述控制方法的优选技术方案中，“根据所述散热构件的温度和所述电控箱的内部温度，选择性地调节所述室内风机的转速和/或所述变频压缩机的频率”的步骤具体包括：计算所述散热构件的温度与所述电控箱的内部温度的差值；将所述散热构件的温度与所述电控箱的内部温度的差值和预设差值进行比较；如果所述散热构件的温度与所述电控箱的内部温度的差值小于或等于所述预设差值，则选择性地调节所述室内风机的转速和/或所述变频压缩机的频率。In the preferred technical solution of the above control method, "selectively adjust the rotation speed of the indoor fan and/or the frequency of the variable frequency compressor according to the temperature of the heat dissipation component and the internal temperature of the electric control box" The steps specifically include: calculating the difference between the temperature of the heat dissipation member and the internal temperature of the electric control box; comparing the difference between the temperature of the heat dissipation member and the internal temperature of the electric control box with a preset difference ; if the difference between the temperature of the heat dissipation member and the internal temperature of the electric control box is less than or equal to the preset difference, then selectively adjust the speed of the indoor fan and/or the speed of the variable frequency compressor frequency.

在上述控制方法的优选技术方案中，“如果所述散热构件的温度与所述电控箱的内部温度的差值小于或等于所述预设差值，则选择性地调节所述室内风机的转速和/或所述变频压缩机的频率”的步骤具体包括：如果所述散热构件的温度与所述电控箱的内部温度的差值小于所述预设差值，则增大所述室内风机的转速且降低所述变频压缩机的频率。In the preferred technical solution of the above control method, "if the difference between the temperature of the heat dissipation member and the internal temperature of the electric control box is less than or equal to the preset difference, then selectively adjust the temperature of the indoor fan The step of rotating speed and/or the frequency of the variable frequency compressor" specifically includes: if the difference between the temperature of the heat dissipation member and the internal temperature of the electric control box is less than the preset difference, increasing the indoor increase the speed of the fan and reduce the frequency of the inverter compressor.

在上述控制方法的优选技术方案中，“增大所述室内风机的转速且降低所述变频压缩机的频率”的步骤具体包括：使所述室内风机的转速增大预设转速且使所述变频压缩机的频率降低预设频率。In the preferred technical solution of the above control method, the step of "increasing the speed of the indoor fan and reducing the frequency of the inverter compressor" specifically includes: increasing the speed of the indoor fan to a preset speed and making the The frequency of the inverter compressor is reduced by the preset frequency.

在上述控制方法的优选技术方案中，所述预设频率为10Hz。In a preferred technical solution of the above control method, the preset frequency is 10 Hz.

在上述控制方法的优选技术方案中，“如果所述散热构件的温度与所述电控箱的内部温度的差值小于或等于所述预设差值，则选择性地调节所述室内风机的转速和/或所述变频压缩机的频率”的步骤还包括：如果所述散热构件的温度与所述电控箱的内部温度的差值等于所述预设差值，则增大所述室内风机的转速且控制所述变频压缩机的频率不得增大。In the preferred technical solution of the above control method, "if the difference between the temperature of the heat dissipation member and the internal temperature of the electric control box is less than or equal to the preset difference, then selectively adjust the temperature of the indoor fan speed and/or the frequency of the variable frequency compressor" further includes: if the difference between the temperature of the heat dissipation member and the internal temperature of the electric control box is equal to the preset difference, increasing the indoor The speed of the fan and the frequency of the inverter compressor must not be increased.

在上述控制方法的优选技术方案中，所述控制方法还包括：如果所述散热构件的温度与所述电控箱的内部温度的差值大于所述预设差值，则不根据所述散热构件的温度和所述电控箱的内部温度调节所述室内风机的转速和所述变频压缩机的频率。In the preferred technical solution of the above control method, the control method further includes: if the difference between the temperature of the heat dissipation member and the internal temperature of the electric control box is greater than the preset difference, not according to the heat dissipation The temperature of the components and the internal temperature of the electric control box adjust the rotation speed of the indoor fan and the frequency of the variable frequency compressor.

在上述控制方法的优选技术方案中，所述预设差值为零。In a preferred technical solution of the above control method, the preset difference is zero.

在上述控制方法的优选技术方案中，在执行“增大所述室内风机的转速且降低所述变频压缩机的频率”的步骤之后，所述控制方法还包括：经过预设时间后，再次获取所述散热构件的温度和所述电控箱的内部温度；根据再次获取到的所述散热构件的温度和所述电控箱的内部温度，选择性地调节所述室内风机的转速和/或所述变频压缩机的频率。In the preferred technical solution of the above control method, after the step of "increasing the speed of the indoor fan and reducing the frequency of the variable frequency compressor", the control method further includes: after a preset time, obtain The temperature of the heat dissipation component and the internal temperature of the electric control box; according to the obtained temperature of the heat dissipation component and the internal temperature of the electric control box, selectively adjust the speed of the indoor fan and/or The frequency of the inverter compressor.

在上述控制方法的优选技术方案中，所述预设时间为5分钟。In a preferred technical solution of the above control method, the preset time is 5 minutes.

本领域技术人员能够理解的是，在本发明的技术方案中，本发明的吸风式空调器包括相连的室内机和室外机，其中，所述室内机包括沿出风方向依次设置的室内换热器和室内风机以及设置在靠近所述室内风机一侧的电控箱，所述电控箱上设置有散热构件，所述室外机包括变频压缩机，该控制方法包括：在所述空调器运行制冷工况的情形下，获取所述散热构件的温度和所述电控箱的内部温度；根据所述散热构件的温度和所述电控箱的内部温度，选择性地调节所述室内风机的转速和/或所述变频压缩机的频率。本发明的控制方法在制冷工况下根据所述散热构件的温度和所述电控箱的内部温度及时预判所述散热构件上是否容易出现凝露，以便在必要时及时通过调节所述室内风机的转速和/或所述变频压缩机的频率来控制所述散热构件的温度，从而最大程度地避免所述散热构件上容易出现凝露而导致电控模块故障甚至短路烧毁的问题，进而保证吸风式空调器能够稳定运行。Those skilled in the art can understand that, in the technical solution of the present invention, the suction air conditioner of the present invention includes connected indoor units and outdoor units, wherein the indoor units include indoor air conditioners arranged sequentially along the air outlet direction. A heater, an indoor fan, and an electric control box arranged on a side close to the indoor fan, the electric control box is provided with heat dissipation components, the outdoor unit includes a variable frequency compressor, and the control method includes: in the air conditioner In the case of cooling operation, obtain the temperature of the heat dissipation component and the internal temperature of the electric control box; selectively adjust the indoor fan according to the temperature of the heat dissipation component and the internal temperature of the electric control box the rotational speed and/or the frequency of the inverter compressor. The control method of the present invention predicts in time whether condensation is likely to occur on the heat dissipation component according to the temperature of the heat dissipation component and the internal temperature of the electric control box under cooling conditions, so as to timely The speed of the fan and/or the frequency of the variable frequency compressor are used to control the temperature of the heat dissipation component, so as to avoid the problem that the condensation on the heat dissipation component is prone to occur and cause the electronic control module to fail or even be burned by a short circuit to the greatest extent, thereby ensuring The suction air conditioner can run stably.

附图说明Description of drawings

图1是本发明的室内机的内部结构示意图；Fig. 1 is a schematic diagram of the internal structure of the indoor unit of the present invention;

图2是本发明的控制方法的主要步骤流程图；Fig. 2 is the flow chart of main steps of the control method of the present invention;

图3是本发明的控制方法的优选实施例的步骤流程图；Fig. 3 is a flow chart of steps of a preferred embodiment of the control method of the present invention;

附图标记：11、室内换热器；12、室内风机；13、电控箱；131、散热构件。Reference signs: 11, indoor heat exchanger; 12, indoor fan; 13, electric control box; 131, heat dissipation component.

具体实施方式Detailed ways

下面参照附图来描述本发明的优选实施方式。本领域技术人员应当理解的是，这些实施方式仅用于解释本发明的技术原理，并非旨在限制本发明的保护范围。本领域技术人员可以根据需要对其作出调整，以便适应具体的应用场合。此外，在本发明的描述中，尽管本申请中按照特定顺序描述了本发明的控制方法的各个步骤，但是这些顺序并不是限制性的，在不偏离本发明的基本原理的前提下，本领域技术人员可以按照不同的顺序来执行所述步骤。Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention. Those skilled in the art can make adjustments as needed so as to adapt to specific applications. In addition, in the description of the present invention, although the various steps of the control method of the present invention are described in a specific order in the application, these orders are not limiting. A skilled artisan may perform the steps in a different order.

需要说明的是，在本发明的优选实施方式的描述中，术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。It should be noted that, in the description of the preferred embodiments of the present invention, terms such as "upper", "lower", "left", "right", "inner", "outer" and other indicated directions or positional relationships are Based on the orientation or positional relationship shown in the drawings, this is only for convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present invention .

此外，还需要说明的是，在本发明的描述中，除非另有明确的规定和限定，术语“相连”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域技术人员而言，可根据具体情况理解上述术语在本发明中的具体含义。In addition, it should be noted that, in the description of the present invention, unless otherwise specified and limited, the term "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection ; It can be directly connected, or indirectly connected through an intermediary, and can be internally connected between two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

首先参阅图1，该图是本发明的室内机的内部结构示意图。本发明的吸风式空调器包括通过冷媒管路相连的室内机和室外机(图中未示出)，其中，所述室内机中设置有室内换热器11，所述室外机中设置有室外换热器、变频压缩机和节流构件，室内换热器11、室外换热器、变频压缩机和节流构件通过冷媒管路相连，以使冷媒能够循环流动而实现换热。需要说明的是，本发明不对所述室内机和所述室外机的具体结构作任何限制，技术人员可以根据实际使用需求自行设定，只要所述空调器的类型为吸风式空调器即可。如图1所示，所述室内机中还设置有室内风机12和电控箱13，室内换热器11和室内风机12沿出风方向(箭头所指的方向)依次设置，电控箱13设置在靠近室内风机12的一侧，具体设置在图中的左下侧；当然，这并不是限制的设置位置，技术人员也可以根据实际使用需求自行调整电控箱13的具体设置位置。进一步地，电控箱13中设置有各种电控模块，并且电控箱13上还设置有散热构件131，在本优选实施例中，散热构件131为金属散热片结构，其设置在电控箱13的上侧，用以充当电控箱13的上盖，以便有效提升散热效果。此外，还需要说明的是，本发明不对散热构件131的具体结构和设置位置作任何限制，技术人员可以根据实际使用需求自行设定，只要散热构件131设置在电控箱13上且能辅助电控箱13散热即可。Referring to Fig. 1 first, this figure is a schematic diagram of the internal structure of the indoor unit of the present invention. The suction air conditioner of the present invention includes an indoor unit and an outdoor unit (not shown) connected through refrigerant pipelines, wherein an indoor heat exchanger 11 is arranged in the indoor unit, and an indoor heat exchanger 11 is arranged in the outdoor unit. The outdoor heat exchanger, variable frequency compressor, and throttling component, and the indoor heat exchanger 11, outdoor heat exchanger, variable frequency compressor, and throttling component are connected through refrigerant pipelines, so that the refrigerant can circulate to realize heat exchange. It should be noted that the present invention does not impose any restrictions on the specific structures of the indoor unit and the outdoor unit, and technicians can set them by themselves according to actual use requirements, as long as the type of the air conditioner is a suction air conditioner . As shown in Figure 1, the indoor unit is also provided with an indoor fan 12 and an electric control box 13, the indoor heat exchanger 11 and the indoor fan 12 are sequentially arranged along the air outlet direction (the direction indicated by the arrow), and the electric control box 13 It is set on the side close to the indoor fan 12, specifically on the lower left side in the figure; of course, this is not a limited setting position, and technicians can also adjust the specific setting position of the electric control box 13 according to actual use requirements. Further, the electric control box 13 is provided with various electric control modules, and the electric control box 13 is also provided with a heat dissipation member 131. In this preferred embodiment, the heat dissipation member 131 is a metal heat sink structure, which is arranged on the electric control box The upper side of the box 13 is used as the upper cover of the electric control box 13, so as to effectively improve the cooling effect. In addition, it should be noted that the present invention does not impose any restrictions on the specific structure and installation position of the heat dissipation member 131, and technicians can set it by themselves according to actual use needs, as long as the heat dissipation member 131 is arranged on the electric control box 13 and can assist the electric control box 13. The heat dissipation of the control box 13 gets final product.

进一步地，本发明的吸风式空调器还包括散热温度传感器、箱体温度传感器和控制器，其中，所述散热温度传感器设置在散热构件131上，用以检测散热构件131的温度；所述箱体温度传感器设置在电控箱13中，用以检测电控箱13的内部温度；所述控制器能够获取所述散热温度传感器和所述箱体温度传感器的检测结果。需要说明的是，本发明不对所述散热温度传感器和所述箱体温度传感器的具体类型和设置位置作任何限制，技术人员可以根据实际使用需求自行设定，只要所述散热温度传感器能够检测散热构件131的温度且所述箱体温度传感器能够检测电控箱13的内部温度即可。此外，本领域技术人员能够理解的是，本发明不对所述控制器的具体结构和型号作任何限制，并且所述控制器可以是吸风式空调器原有的控制器，也可以是为执行本发明的控制方法而单独设置的控制器，技术人员可以根据实际使用需求自行设定所述控制器的具体结构和型号。Further, the suction air conditioner of the present invention also includes a heat dissipation temperature sensor, a box temperature sensor and a controller, wherein the heat dissipation temperature sensor is arranged on the heat dissipation member 131 to detect the temperature of the heat dissipation member 131; The box temperature sensor is arranged in the electric control box 13 to detect the internal temperature of the electric control box 13; the controller can obtain the detection results of the heat dissipation temperature sensor and the box temperature sensor. It should be noted that the present invention does not impose any restrictions on the specific types and installation positions of the heat dissipation temperature sensor and the box temperature sensor. The temperature of the component 131 and the box temperature sensor can detect the internal temperature of the electric control box 13 . In addition, those skilled in the art can understand that the present invention does not impose any restrictions on the specific structure and model of the controller, and the controller can be the original controller of the suction air conditioner, or it can be a For the controller provided separately by the control method of the present invention, technicians can set the specific structure and model of the controller according to the actual use requirements.

接着参阅图2，该图是本发明的控制方法的主要步骤流程图。如图2所示，基于上述优选实施例中所述的吸风式空调器，本发明的控制方法主要包括下列步骤：Referring next to Fig. 2, this figure is a flow chart of the main steps of the control method of the present invention. As shown in Figure 2, based on the suction air conditioner described in the above-mentioned preferred embodiment, the control method of the present invention mainly includes the following steps:

S1：在空调器运行制冷工况的情形下，获取散热构件的温度和电控箱的内部温度；S1: When the air conditioner is running in cooling mode, obtain the temperature of the heat dissipation component and the internal temperature of the electric control box;

S2：根据散热构件的温度和电控箱的内部温度，选择性地调节室内风机的转速和/或变频压缩机的频率。S2: Selectively adjust the rotational speed of the indoor fan and/or the frequency of the variable frequency compressor according to the temperature of the heat dissipation component and the internal temperature of the electric control box.

在步骤S1中，在所述吸风式空调器运行制冷工况的情形下，所述控制器能够通过所述散热温度传感器获取散热构件131的温度且通过所述箱体温度传感器获取电控箱13的内部温度。需要说明的是，本发明中所述的制冷工况不仅局限于所述吸风式空调器执行制冷模式的情形，还可以包括所述吸风式空调器执行室外除霜模式的情形等，即只要室内换热器11用作蒸发器的模式均属于本发明中所述的制冷工况。In step S1, when the suction air conditioner is in cooling mode, the controller can obtain the temperature of the heat dissipation member 131 through the heat dissipation temperature sensor and obtain the temperature of the electric control box through the box body temperature sensor. 13 internal temperature. It should be noted that the cooling working conditions mentioned in the present invention are not limited to the situation in which the suction air conditioner is in the cooling mode, but also include the situation in which the suction air conditioner is in the outdoor defrosting mode, that is, As long as the mode in which the indoor heat exchanger 11 is used as an evaporator belongs to the refrigeration working condition described in the present invention.

在步骤S2中，所述控制器能够根据散热构件131的温度和电控箱13的内部温度选择性地调节室内风机12的转速和/或所述变频压缩机的频率。具体地，所述控制器既可以根据散热构件131的温度和电控箱13的内部温度是否处于预设温度范围内来选择性地调节室内风机12的转速和/或所述变频压缩机的频率，也可以根据散热构件131的温度和电控箱13的内部温度的比值或差值与预设值的比较结果来选择性地调节室内风机12的转速和/或所述变频压缩机的频率，这都不是限制性的，技术人员可以根据实际使用需求自行设定，只要判断条件中涉及的基础参数是散热构件131的温度和电控箱13的内部温度就属于本发明的保护范围。这些改变均不偏离本发明的基本原理，属于本发明的保护范围。In step S2, the controller can selectively adjust the rotation speed of the indoor fan 12 and/or the frequency of the inverter compressor according to the temperature of the heat dissipation component 131 and the internal temperature of the electric control box 13 . Specifically, the controller can selectively adjust the speed of the indoor fan 12 and/or the frequency of the variable frequency compressor according to whether the temperature of the heat dissipation member 131 and the internal temperature of the electric control box 13 are within a preset temperature range. It is also possible to selectively adjust the rotational speed of the indoor fan 12 and/or the frequency of the variable frequency compressor according to the ratio or difference between the temperature of the heat dissipation member 131 and the internal temperature of the electric control box 13 and the preset value, This is not restrictive, and technicians can set it by themselves according to actual use requirements, as long as the basic parameters involved in the judgment conditions are the temperature of the heat dissipation member 131 and the internal temperature of the electric control box 13, it belongs to the protection scope of the present invention. These changes all do not deviate from the basic principle of the present invention, and belong to the protection scope of the present invention.

下面参阅图3，该图是本发明的控制方法的优选实施例的步骤流程图。如图3所示，基于上述优选实施例中所述的吸风式空调器，本发明的控制方法的优选实施例具体包括下列步骤：Referring to Fig. 3 below, this figure is a flowchart of steps of a preferred embodiment of the control method of the present invention. As shown in Figure 3, based on the suction air conditioner described in the above-mentioned preferred embodiment, the preferred embodiment of the control method of the present invention specifically includes the following steps:

S101：在空调器运行制冷工况的情形下，获取散热构件的温度和电控箱的内部温度；S101: Acquire the temperature of the heat dissipation component and the internal temperature of the electric control box when the air conditioner is running in cooling mode;

S102：计算散热构件的温度与电控箱的内部温度的差值；S102: Calculate the difference between the temperature of the heat dissipation component and the internal temperature of the electric control box;

S103：判断差值是否大于预设差值；如果是，执行步骤S104；如果否，执行步骤S105；S103: Determine whether the difference is greater than the preset difference; if yes, execute step S104; if not, execute step S105;

S104：不根据散热构件的温度和电控箱的内部温度调节室内风机的转速和变频压缩机的频率；S104: Do not adjust the speed of the indoor fan and the frequency of the variable frequency compressor according to the temperature of the cooling components and the internal temperature of the electric control box;

S105：判断差值是否等于预设差值；如果是，执行步骤S106；如果否，执行步骤S107；S105: Determine whether the difference is equal to the preset difference; if yes, execute step S106; if not, execute step S107;

S106：增大室内风机的转速且控制变频压缩机的频率不得增大；S106: Increase the speed of the indoor fan and control the frequency of the inverter compressor to not increase;

S107：增大室内风机的转速且降低变频压缩机的频率；S107: increase the speed of the indoor fan and reduce the frequency of the inverter compressor;

S108：经过预设时间后，再次获取散热构件的温度和电控箱的内部温度。S108: After the preset time elapses, acquire the temperature of the heat dissipation component and the internal temperature of the electric control box again.

在步骤S101中，在所述吸风式空调器运行制冷工况的情形下，所述控制器能够通过所述散热温度传感器获取散热构件131的温度且通过所述箱体温度传感器获取电控箱13的内部温度。需要说明的是，本发明中所述的散热构件131的温度既可以是散热构件131上某点的温度，也可以是多点温度的平均值；同理，电控箱13的内部温度既可以是电控箱13内某点的温度，也可以是多点温度的平均值，技术人员可以根据实际使用需求自行设定。In step S101, when the suction air conditioner is in cooling mode, the controller can obtain the temperature of the heat dissipation member 131 through the heat dissipation temperature sensor and obtain the temperature of the electric control box through the box body temperature sensor. 13 internal temperature. It should be noted that the temperature of the radiating member 131 described in the present invention can be the temperature of a certain point on the radiating member 131, or the average temperature of multiple points; similarly, the internal temperature of the electric control box 13 can be It is the temperature of a certain point in the electric control box 13, and it can also be the average value of the temperatures of multiple points, which can be set by technicians according to actual usage requirements.

接着，在步骤S102中，所述控制器能够计算散热构件131的温度与电控箱13的内部温度的差值，以便据此来判断散热构件131上出现凝露的概率。可以理解的是，这个计算工作既可以由所述控制器自行完成，也可以由单独的计算模块完成后再由所述控制器获取得到，这并不是限制性的；并且，虽然本优选实施例中使用的判断条件是将散热构件131的温度与电控箱13的内部温度的差值与预设差值进行比较，但这并不是限制性的，技术人员也可以将散热构件131的温度和电控箱13的内部温度分别与预设值进行比较，或者将散热构件131的温度与电控箱13的内部温度的比值与预设比值进行比较。这些具体判断条件的调整均不偏离本发明的基本原理，属于本发明的保护范围。此外，还需要说明的是，本发明不对所述预设差值的具体值作任何限制，技术人员可以根据实际使用需求自行设定；优选地，所述预设差值为零，以便有效均衡防凝露效果和制冷效果。Next, in step S102 , the controller can calculate the difference between the temperature of the heat dissipation member 131 and the internal temperature of the electric control box 13 , so as to judge the probability of condensation on the heat dissipation member 131 accordingly. It can be understood that this calculation work can be completed by the controller itself, or can be obtained by the controller after being completed by a separate calculation module, which is not limiting; and, although the present preferred embodiment The judgment condition used in is to compare the difference between the temperature of the heat dissipation member 131 and the internal temperature of the electric control box 13 with the preset difference, but this is not restrictive. The technician can also compare the temperature of the heat dissipation member 131 with the The internal temperature of the electric control box 13 is compared with the preset value, or the ratio of the temperature of the heat dissipation member 131 to the internal temperature of the electric control box 13 is compared with the preset ratio. The adjustment of these specific judgment conditions does not deviate from the basic principle of the present invention, and belongs to the protection scope of the present invention. In addition, it should be noted that the present invention does not impose any restrictions on the specific value of the preset difference, and technicians can set it according to actual use requirements; preferably, the preset difference is zero, so as to effectively balance Anti-condensation effect and cooling effect.

基于步骤S103的判断结果，如果所述控制器判断出散热构件131的温度与电控箱13的内部温度的差值大于所述预设差值，即散热构件131的温度大于电控箱13的内部温度，在此情形下，散热构件131以将电控箱13内部的热量传导至外部的换热过程为主，其从外部吸收的冷量小于其正在传导的热量，散热构件131没有产生凝露的风险；相应执行步骤S104，即所述控制器不根据散热构件131的温度和电控箱13的内部温度调节室内风机12的转速和所述变频压缩机的频率。换言之，所述控制器可以根据其他控制逻辑的控制结果自由调节室内风机12的转速和所述变频压缩机的频率，以便有效保证所述吸风式空调器的制冷效果，进而有效提升用户体验；当然，本发明不对其他控制逻辑的控制方式作任何限制。Based on the judgment result of step S103, if the controller judges that the difference between the temperature of the heat dissipation member 131 and the internal temperature of the electric control box 13 is greater than the preset difference, that is, the temperature of the heat dissipation member 131 is greater than that of the electric control box 13. In this case, the heat dissipation member 131 mainly conducts the heat exchange process from the inside of the electric control box 13 to the outside. risk of exposure; correspondingly execute step S104, that is, the controller does not adjust the speed of the indoor fan 12 and the frequency of the variable frequency compressor according to the temperature of the heat dissipation member 131 and the internal temperature of the electric control box 13. In other words, the controller can freely adjust the rotational speed of the indoor fan 12 and the frequency of the variable frequency compressor according to the control results of other control logics, so as to effectively ensure the cooling effect of the suction air conditioner, thereby effectively improving user experience; Of course, the present invention does not impose any limitation on other control logic control methods.

基于步骤S105的判断结果，如果所述控制器判断出散热构件131的温度与电控箱13的内部温度的差值等于所述预设差值，即散热构件131的温度与电控箱13的内部温度相近甚至相同，在此情形下，散热构件131从外部吸收的冷量与其正在传导的热量相当，一旦散热构件131的温度继续下降，散热构件131就将面临表面产生凝露的风险；因而执行步骤S106，即所述控制器控制室内风机12的转速增大且控制所述变频压缩机的频率不得增大，以使散热构件131的温度得以小幅提升，进而有效降低凝露风险。具体而言，控制所述变频压缩机的频率不得增大的方式具体为：当其他控制逻辑需要控制所述变频压缩机的频率增大时，所述控制器不下达增大指令，以便有效控制所述变频压缩机的频率不再增大，当然，控制所述变频压缩机的频率减小的控制逻辑可以正常执行。此外，需要说明的是，本发明不对室内风机12的转速的增大量作具体限制，技术人员可以根据实际情况自行设定；作为一种优选的调节方式，对于有极调节的室内风机12，控制室内风机12的转速提升一个档位。Based on the judgment result of step S105, if the controller judges that the difference between the temperature of the heat dissipation member 131 and the internal temperature of the electric control box 13 is equal to the preset difference, that is, the temperature of the heat dissipation member 131 and the temperature of the electric control box 13 The internal temperature is similar or even the same. In this case, the cooling capacity absorbed by the heat dissipation member 131 from the outside is equivalent to the heat it is conducting. Once the temperature of the heat dissipation member 131 continues to drop, the heat dissipation member 131 will face the risk of condensation on the surface; thus Step S106 is executed, that is, the controller controls the speed of the indoor fan 12 to increase and controls the frequency of the variable frequency compressor not to increase, so that the temperature of the heat dissipation component 131 can be slightly increased, thereby effectively reducing the risk of condensation. Specifically, the method of controlling the frequency of the variable frequency compressor not to increase is as follows: when other control logics need to control the frequency of the variable frequency compressor to increase, the controller does not issue an increase command, so as to effectively control The frequency of the variable frequency compressor does not increase anymore, of course, the control logic for controlling the frequency of the variable frequency compressor to decrease can be executed normally. In addition, it should be noted that the present invention does not impose specific restrictions on the increase of the speed of the indoor fan 12, and technicians can set it according to the actual situation; as a preferred adjustment method, for the indoor fan 12 with pole adjustment, the control The speed of the indoor fan 12 is increased by one gear.

进一步地，如果步骤S103和步骤S105的判断结果均为否，则说明散热构件131的温度与电控箱13的内部温度的差值小于所述预设差值，即散热构件131的温度小于电控箱13的内部温度，在此情形下，散热构件131以吸收外部冷量的换热过程为主，其从外部吸收的冷量大于其正在传导的热量，散热构件131正在面临凝露风险，执行步骤S107，即所述控制器控制室内风机12的转速增大且控制所述变频压缩机的频率降低，以便快速提升散热构件131的温度，从而有效避免散热构件131的表面产生凝露，进而有效避免设置在电控箱13中的电控模块出现短路甚至烧毁的问题。需要说明的是，本发明不对步骤S103和步骤S105的执行顺序作任何限制，技术人员可以根据实际情况自行调整，例如，也可以先执行步骤S105对应的判断条件再执行步骤S103对应的判断条件。这种有关具体执行顺序的调整并不偏离本发明的基本原理，属于本发明的保护范围。Further, if the judgment results of step S103 and step S105 are both negative, it means that the difference between the temperature of the heat dissipation member 131 and the internal temperature of the electric control box 13 is less than the preset difference, that is, the temperature of the heat dissipation member 131 is less than the temperature of the electric control box 13. The internal temperature of the control box 13. In this case, the heat dissipation member 131 is mainly engaged in the heat exchange process of absorbing external cold, and the cold absorbed by it from the outside is greater than the heat it is conducting, and the heat dissipation member 131 is facing the risk of condensation. Execute step S107, that is, the controller controls the speed of the indoor fan 12 to increase and the frequency of the variable frequency compressor to decrease, so as to quickly increase the temperature of the heat dissipation member 131, thereby effectively avoiding condensation on the surface of the heat dissipation member 131, and then Effectively avoid the problem of short circuit or even burning of the electric control module arranged in the electric control box 13 . It should be noted that the present invention does not impose any restrictions on the execution sequence of steps S103 and S105, and technicians can adjust it according to the actual situation. For example, the judgment conditions corresponding to step S105 can also be executed first, and then the judgment conditions corresponding to step S103 can be executed. Such adjustments related to specific execution order do not deviate from the basic principle of the present invention, and belong to the protection scope of the present invention.

作为一种优选控制方式，所述控制器控制室内风机12的转速增大预设转速且控制所述变频压缩机的频率降低预设频率，对于有极调节的室内风机12，所述预设转速为控制室内风机12的档位提升一个档位时对应提升的转速，所述预设频率优选为10Hz；即，所述控制器控制室内风机12提升一个档位且控制所述变频压缩机的频率降低10Hz。当然，这仅是一种优选调节方式，但并不是限制性的，技术人员也可以根据实际使用需求自行调节。As a preferred control method, the controller controls the speed of the indoor fan 12 to increase the preset speed and controls the frequency of the variable frequency compressor to decrease the preset frequency. For the indoor fan 12 with pole adjustment, the preset speed In order to control the gear of the indoor fan 12 to increase the speed corresponding to the increase of a gear, the preset frequency is preferably 10Hz; that is, the controller controls the indoor fan 12 to increase a gear and controls the frequency of the variable frequency compressor Reduced by 10Hz. Of course, this is only an optimal adjustment method, but it is not restrictive, and technicians can also adjust it according to actual usage requirements.

在执行完步骤S107后，接着，在步骤S108中，经过所述预设时间后，所述控制器能够再次获取散热构件131的温度和电控箱13的内部温度，以便及时判断散热构件131的温度是否已经得到快速提升，从而最大程度地避免散热构件131的表面产生凝露的风险。在获取到散热构件131的温度和电控箱13的内部温度之后，再次执行S102，以便再一次对散热构件131产生凝露的风险进行全面分析，并根据分析结果执行相应步骤，进而有效保护电控模块的安全。需要说明的是，本发明不对所述预设时间的具体值作任何限制，技术人员可以根据实际使用需求自行设定；优选地，所述预设时间为5分钟，以便有效避免频繁操作所带来的能量损耗，进而在保护电控模块的同时，还能够有效兼顾所述吸风式空调器的换热效率。After step S107 is executed, then, in step S108, after the preset time, the controller can obtain the temperature of the heat dissipation member 131 and the internal temperature of the electric control box 13 again, so as to judge the temperature of the heat dissipation member 131 in time. Whether the temperature has been raised rapidly, so as to avoid the risk of condensation on the surface of the heat dissipation member 131 to the greatest extent. After obtaining the temperature of the heat dissipation member 131 and the internal temperature of the electric control box 13, execute S102 again, so as to conduct a comprehensive analysis on the risk of condensation on the heat dissipation member 131 again, and perform corresponding steps according to the analysis results, so as to effectively protect the electrical appliances. control module security. It should be noted that the present invention does not impose any restrictions on the specific value of the preset time, and technicians can set it by themselves according to actual use requirements; preferably, the preset time is 5 minutes, so as to effectively avoid frequent operations. The resulting energy loss, while protecting the electronic control module, can also effectively take into account the heat exchange efficiency of the suction air conditioner.

至此，已经结合附图所示的优选实施方式描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不仅局限于这些具体实施方式。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings, but those skilled in the art will easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims (7)

1. The control method of the air suction type air conditioner is characterized by comprising an indoor unit and an outdoor unit which are connected, wherein the indoor unit comprises an indoor heat exchanger and an indoor fan which are sequentially arranged along an air outlet direction, and an electric cabinet which is arranged at one side close to the indoor fan, a heat dissipation component is arranged on the electric cabinet, the outdoor unit comprises a variable frequency compressor, and the control method comprises the following steps:
under the condition that the air conditioner operates under a refrigeration working condition, acquiring the temperature of the heat dissipation component and the internal temperature of the electric cabinet;
selectively adjusting the rotating speed of the indoor fan and/or the frequency of the variable-frequency compressor according to the temperature of the heat dissipation component and the internal temperature of the electric cabinet;
the step of selectively adjusting the rotation speed of the indoor fan and/or the frequency of the inverter compressor according to the temperature of the heat dissipation member and the internal temperature of the electric cabinet specifically includes:
calculating a difference between the temperature of the heat dissipation member and the internal temperature of the electric cabinet;
comparing a difference between the temperature of the heat dissipation member and the internal temperature of the electric cabinet with a preset difference;
if the difference value between the temperature of the heat dissipation component and the internal temperature of the electric cabinet is smaller than or equal to the preset difference value, selectively adjusting the rotating speed of the indoor fan and/or the frequency of the variable frequency compressor;
the step of selectively adjusting the rotation speed of the indoor fan and/or the frequency of the inverter compressor if the difference between the temperature of the heat dissipation member and the internal temperature of the electric cabinet is less than or equal to the preset difference specifically includes:
if the difference between the temperature of the heat dissipation component and the internal temperature of the electric cabinet is smaller than the preset difference, increasing the rotating speed of the indoor fan and reducing the frequency of the variable frequency compressor;
and if the difference between the temperature of the heat dissipation component and the internal temperature of the electric cabinet is equal to the preset difference, increasing the rotating speed of the indoor fan and controlling the frequency of the variable frequency compressor not to be increased.
2. The control method according to claim 1, wherein the step of increasing the rotation speed of the indoor fan and decreasing the frequency of the inverter compressor specifically comprises:
and increasing the rotating speed of the indoor fan by a preset rotating speed and reducing the frequency of the variable frequency compressor by a preset frequency.
3. Control method according to claim 2, characterized in that the preset frequency is 10Hz.
4. The control method according to claim 1, characterized by further comprising:
if the difference between the temperature of the heat dissipation component and the internal temperature of the electric cabinet is larger than the preset difference, the rotating speed of the indoor fan and the frequency of the variable frequency compressor are not adjusted according to the temperature of the heat dissipation component and the internal temperature of the electric cabinet.
5. Control method according to any one of claims 1 to 4, characterized in that said preset difference is zero.
6. The control method according to any one of claims 1 to 4, wherein after the step of increasing the rotation speed of the indoor fan and decreasing the frequency of the inverter compressor is performed, the control method further comprises:
after a preset time, acquiring the temperature of the heat dissipation member and the internal temperature of the electric cabinet again;
and selectively adjusting the rotating speed of the indoor fan and/or the frequency of the variable-frequency compressor according to the obtained temperature of the heat dissipation component and the obtained internal temperature of the electric cabinet.
7. The control method according to claim 6, wherein the preset time is 5 minutes.
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