WO2020073363A1 - Boîte de commande électrique et unité extérieure de climatiseur comportant ladite boîte - Google Patents

Boîte de commande électrique et unité extérieure de climatiseur comportant ladite boîte Download PDF

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Publication number
WO2020073363A1
WO2020073363A1 PCT/CN2018/112155 CN2018112155W WO2020073363A1 WO 2020073363 A1 WO2020073363 A1 WO 2020073363A1 CN 2018112155 W CN2018112155 W CN 2018112155W WO 2020073363 A1 WO2020073363 A1 WO 2020073363A1
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WO
WIPO (PCT)
Prior art keywords
electric control
control box
spoiler
spoilers
box according
Prior art date
Application number
PCT/CN2018/112155
Other languages
English (en)
Chinese (zh)
Inventor
高文栋
Original Assignee
广东美的制冷设备有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201821651562.2U external-priority patent/CN209181133U/zh
Priority claimed from CN201811184846.XA external-priority patent/CN109210641A/zh
Application filed by 广东美的制冷设备有限公司, 美的集团股份有限公司 filed Critical 广东美的制冷设备有限公司
Publication of WO2020073363A1 publication Critical patent/WO2020073363A1/fr

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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/24—Cooling of electric components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers

Definitions

  • the present application relates to the technical field of air conditioner manufacturing, in particular to an electric control box and an air conditioner outdoor unit having the same.
  • inverter air conditioners are becoming more common.
  • the electronic control components are integrated into the electric control box, and the integrated electric control box is installed on the outdoor unit of the air conditioner.
  • the environment of the outdoor unit of the air conditioner is relatively harsh. In a high-temperature environment, a higher temperature can easily damage the electronic control components or cause the compressor to limit the frequency, which makes the compressor unable to operate normally, thereby affecting the cooling effect of the air conditioner. Reduce user experience.
  • the heat dissipation of the electronic control components adopts a plurality of metal heat sinks arranged in parallel to dissipate heat through air heat exchange, however, the parallel air duct formed between the plurality of metal heat sinks matches the air duct in the electric control box The performance is poor, and the fluid passing through the air duct of the electric control box enters the parallel channel defined by the multiple metal fins in a laminar flow state, resulting in a poor heat exchange effect in a high-temperature environment.
  • an object of the present application is to propose an electric control box with high heat exchange efficiency.
  • Another object of the present application is to propose an air conditioner outdoor unit having the above-mentioned electric control box.
  • An electric control box includes: an electric control box base, the electric control box base is provided with electronic control components; a radiator, the radiator is provided in the electric control box On the base, the heat sink includes a plurality of fins arranged at intervals; a spoiler, a plurality of the spoilers are arranged on the base of the electric control box at intervals, and a plurality of the spoilers are located Between the heat sink and the electronically controlled component, and the central axis of each spoiler along the length of the heat sink is located between two adjacent heat sinks.
  • the heat exchange efficiency is improved, so that the temperature of the electric control components on the electric control box can be more effectively reduced.
  • the radiator When the radiator is applied to the outdoor unit of the air conditioner, it can dissipate the heat of the electronic control components in the electric control box well, so that the damage of the electronic control components or the compressor frequency limit is not easy to cause the compressor to run normally and affect the air conditioner.
  • the problem of the cooling effect of the device improves the user experience.
  • each of the spoilers is formed as an elongated structure or a sheet-like structure.
  • each of the spoilers when each of the spoilers is formed into an elongated structure, each of the spoilers extends in a vertical direction.
  • the thickness of each spoiler is less than the distance between two adjacent fins.
  • the thickness of each spoiler is t, where t satisfies: 1 mm ⁇ t ⁇ 3 mm.
  • the height of each spoiler is h
  • the height of each heat sink is H
  • h and H satisfy: 0 ⁇ h / H ⁇ 1/2.
  • the distance between two adjacent spoilers is equal to the distance between two adjacent fins.
  • the number of the spoiler is one less than the number of the heat sink.
  • each of the spoilers is parallel to each of the heat sinks.
  • the angle between the spoiler and the heat sink is ⁇ , where ⁇ satisfies: 0 ° ⁇ ⁇ ⁇ 30 °.
  • each of the spoilers is a piece of flame retardant material.
  • each of the spoilers is a metal part, a plastic part or a glass part.
  • the outdoor unit for an air conditioner includes the electric control box according to the embodiment of the above-mentioned first aspect of the present application.
  • FIG. 1 is a schematic diagram of an electric control box base according to an embodiment of the present application.
  • FIG. 2 is a perspective view of an electric control box according to an embodiment of the present application.
  • FIG 3 is another perspective view of the electric control box according to an embodiment of the present application.
  • FIG. 4 is an enlarged view of part A circled in FIG. 3;
  • FIG. 5 is another perspective view of an electric control box according to an embodiment of the present application, in which a heat sink is not shown;
  • FIG. 6 is a schematic diagram of the electric control box shown in FIG. 5;
  • FIG. 7 is a schematic diagram of an electric control box according to another embodiment of the present application.
  • FIG. 8 is a schematic diagram of an outdoor unit of an air conditioner according to an embodiment of the present application.
  • the electronic control box 100 according to an embodiment of the present application will be described below with reference to FIGS. 1-8.
  • the electric control box 100 can be applied to an outdoor air conditioner 200 such as an inverter outdoor air conditioner to control the operating frequency of the compressor.
  • the electronic control box 100 is applied to an inverter air conditioner outdoor unit as an example for description.
  • the electric control box 100 can also be applied to a fixed frequency air conditioner outdoor unit.
  • the electric control box 100 includes an electric control box base 1, a heat sink 2 and a spoiler 3.
  • the electric control box base 1 is provided with electric control components 10.
  • the heat sink 2 is provided on the base 1 of the electric control box.
  • the heat sink 2 includes a plurality of heat dissipation fins 21 arranged at intervals. For example, in the examples of FIGS. 2 to 4, the plurality of fins 21 of the heat sink 2 are sequentially spaced along the thickness direction of the fins 21, and an air passage is defined between every two adjacent fins 21.
  • the heat sink 21 is used to dissipate the core electronic control components 10 in the electric control box 100 to ensure its stable operation under high temperature conditions.
  • the heat sink 2 may be in contact with the surface of the electronic control component 10 such as a high-power heating component.
  • the electronic control component 10 When the electronic control component 10 is working, the electronic control component 10 will generate a large amount of heat, which will be transferred to the plurality of fins 21 of the radiator 2, and the airflow passing through the plurality of fins 21 can dissipate the heat
  • the heat on the sheet 21 is taken away to achieve the purpose of reducing the temperature of the electronically controlled component 10.
  • the heat sink 2 may be arranged at the end of the base 1 of the electric control box and fixed on the base 1 of the electric control box by screws or the like.
  • a plurality of spoilers 3 are arranged at intervals on the base 1 of the electric control box, and the plurality of spoilers 3 are located between the heat sink 2 and the electronic control components 10, and each spoiler 3 is located along the heat sink 21
  • the central axis in the length direction is between two adjacent fins 21.
  • a plurality of spoilers 3 are sequentially spaced in the thickness direction of the fin 21
  • a plurality of spoilers 3 and a radiator 2 are sequentially arranged in the flow direction of the airflow
  • a plurality of spoilers 3 Located upstream of the radiator 2 the center axis of each spoiler 3 is located between two adjacent fins 21 in the length direction of the fins 21.
  • upstream can be understood as upstream in the direction of flow of the airflow.
  • Airflow such as air
  • the temperature is along the normal direction of the surface of the radiator 2 (i.e. The direction of the airflow direction is vertical, and the temperature does not change outside the thermal boundary layer (that is, a certain distance away from the surface of the radiator 2); in the velocity boundary layer, the velocity is along the normal direction of the surface of the radiator 2 (that is, the direction perpendicular to the airflow direction) Direction), the velocity basically does not change outside the velocity boundary layer (ie, a certain distance away from the surface of the radiator 2).
  • the turbulent convection heat transfer layer is mainly the laminar bottom layer.
  • the bottom layer is extremely thin, the temperature gradient is large, and the turbulent heat transfer The intensity is stronger than laminar flow.
  • air such as air
  • the airflow is caused by the spoiler 3 to enter the surface of the heat sink 21
  • the fluid state is in a turbulent state, which can significantly improve the heat exchange efficiency and improve the heat exchange effect, so that the electronic control components 10 in the electronic control box 100 can be well radiated and the temperature of the electronic control components 10 can be reduced.
  • the heat exchange efficiency is improved, so that the temperature of the electric control components 10 on the electric control box 100 can be more effectively reduced.
  • the radiator 2 is applied to an air conditioner outdoor unit 200 such as an inverter air conditioner outdoor unit
  • the electronic control components 10 in the electric control box 100 can be well dissipated, so that the electronic control components 10 are not damaged or the compressor frequency limit
  • each spoiler 3 is formed into an elongated structure. Therefore, by providing the spoiler 3 with a long strip structure, the spoiler 3 has a smaller volume while ensuring a good disturbance to the airflow passing therethrough, thereby reducing the size of the electric control box 100 take up space.
  • each spoiler 3 may also be formed in a sheet-like structure, for example, each spoiler 3 may be substantially parallel to the heat sink 21 and extend in the left-right direction shown in FIG. 2. Thus, it can also play a role in disturbing the airflow.
  • each spoiler 3 when each spoiler 3 is formed into an elongated structure, each spoiler 3 extends in a vertical direction, as shown in FIG. 2.
  • the elongated spoiler 3 extends vertically upward.
  • the space occupied by the electric control box 100 can be further reduced.
  • each spoiler 3 is smaller than the distance between two adjacent heat sinks 21. Therefore, by setting the thickness of each spoiler 3 to be smaller than the distance between two adjacent fins 21, the airflow after passing through the spoiler 3 can smoothly enter the area defined by the plurality of fins 21 Inside the air duct without affecting heat dissipation.
  • the thickness of each spoiler 3 is t, where t satisfies: 1 mm ⁇ t ⁇ 3 mm, as shown in FIGS. 6 and 7.
  • the thickness t of the spoiler 3 is set to be less than 1 mm, the thickness of the spoiler 3 is relatively small, and it may happen that the air state on the surface of the flow channel radiator 2 is not changed to a turbulent state, thereby The heat dissipation effect is relatively poor; if the thickness t of the spoiler 3 is set to be greater than 3 mm, the thickness of the spoiler 3 is relatively large, and airflow may not smoothly pass through the radiator 2, which may affect the heat dissipation effect.
  • t 2mm.
  • each spoiler 3 is h
  • the height of each heat sink 21 is H
  • h and H satisfy: 0 ⁇ h / H ⁇ 1/2. Therefore, when h and H satisfy h / H> 1/2, theoretically, the airflow state entering the radiator 2 can be well guaranteed to be a turbulent state, but it is not easy to process the above disturbance during actual processing ⁇ ⁇ 3.
  • the distance between two adjacent spoilers 3 is equal to the distance between two adjacent heat sinks 21.
  • each spoiler 3 may be located in the center of two adjacent heat sinks 21. At this time, each spoiler 3 is adjacent to two adjacent The distance between the fins 21 is equal; of course, the central axis of each spoiler 3 in the forward airflow direction can also deviate from the center plane between two adjacent fins 21.
  • the number of spoilers 3 is one less than the number of fins 21, as shown in FIG. At this time, in the direction of the airflow, there is a spoiler 3 between every two adjacent fins 21. Thereby, the heat exchange efficiency can be further improved.
  • each spoiler 3 is parallel to each heat sink 21.
  • the structure of the entire electronic control box 100 is simple and easy to process.
  • the angle between the spoiler 3 and the heat sink 21 is ⁇ , where ⁇ satisfies: 0 ° ⁇ ⁇ ⁇ 30 °. Therefore, by setting the angle ⁇ between the spoiler 3 and the fins 21 to satisfy 0 ° ⁇ ⁇ ⁇ 30 °, while ensuring the improvement of the heat exchange efficiency, the spoiler 3 and the fins 21 are reduced. Processing difficulty, thereby reducing costs.
  • the angle ⁇ 0 ° between the spoiler 3 and the heat sink 21.
  • the present application is not limited to this.
  • each spoiler 3 is disposed obliquely with respect to the heat sink 21, and at this time, the angle ⁇ ⁇ between each spoiler 3 and the heat sink 21 0 °.
  • each spoiler 3 is a piece of flame retardant material. Therefore, by using a flame retardant material as the spoiler 3, the safety of the electric control box 100 is improved while ensuring the heat dissipation effect.
  • each spoiler 3 is a metal piece, a plastic piece, a glass piece, or the like. But it is not limited to this.
  • a protective plate 11 is provided on the base 1 of the electric control box, and the protective plate 11 can be fixed on the base 1 of the electric control box by screws or the like, and the protective plate 11 is used to protect the electric control
  • the components in the box 100 are, for example, electronically controlled components 10 and the like.
  • a plurality of spoilers 3 are located between the shield 11 and the radiator 2.
  • the guard plate 11 is a sheet metal part or the like.
  • the electric control box 100 of the embodiment of the present application by providing a plurality of spoilers 3 between the air passage of the electric control box 100 and the air passage of the radiator 2, when air flows from the compressor side to the air passage of the electric control box 100 to In the case of the heat sink 2, turbulent flow is added to the flow field on the surface of the heat sink 2, the heat exchange efficiency is higher, and the temperature of the electronic control component 10 can be lowered more effectively.
  • the outdoor unit 200 for an air conditioner includes the electric control box 100 according to the embodiment of the first aspect of the present application.
  • the electric control box 100 may be installed on the top of the outdoor air-conditioning unit 200, such as an inverter outdoor unit.
  • the overall performance of the air conditioner outdoor unit 200 is improved by adopting the above-mentioned electric control box 100.

Abstract

L'invention concerne une boîte de commande électrique (100) et une unité extérieure (200) de climatiseur comportant ladite boîte. La boîte de commande électrique (100) comprend une base de boîte de commande électrique (1), un radiateur (2) et des turbulateurs (3). La base de boîte de commande électrique (1) est pourvue d'un composant de commande électrique (10). Le radiateur (2) est disposé sur la base de boîte de commande électrique (1). Le radiateur (2) comprend de multiples ailettes de refroidissement (21) disposées à des intervalles. De multiples turbulateurs (3) sont disposés sur la base de boîte de commande électrique (1) à des intervalles, et les multiples turbulateurs (3) se trouvent tous entre le radiateur (2) et le composant de commande électrique. L'axe central de chaque turbulateur (3) dans le sens de la longueur des ailettes de refroidissement (21) se trouve entre deux ailettes de refroidissement (21) adjacentes. La boîte de commande électrique (100) améliore l'efficacité d'échange de chaleur, et lorsque le radiateur (2) est appliqué à une unité extérieure de climatiseur, le problème d'impact sur l'effet de réfrigération d'un climatiseur dû à l'endommagement du composant de commande électronique ou à la limitation de fréquence d'un compresseur est moins susceptible de se produire.
PCT/CN2018/112155 2018-10-11 2018-10-26 Boîte de commande électrique et unité extérieure de climatiseur comportant ladite boîte WO2020073363A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201821651562.2U CN209181133U (zh) 2018-10-11 2018-10-11 电控盒和具有其的空调室外机
CN201821651562.2 2018-10-11
CN201811184846.X 2018-10-11
CN201811184846.XA CN109210641A (zh) 2018-10-11 2018-10-11 电控盒和具有其的空调室外机

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Publication Number Publication Date
WO2020073363A1 true WO2020073363A1 (fr) 2020-04-16

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PCT/CN2018/112155 WO2020073363A1 (fr) 2018-10-11 2018-10-26 Boîte de commande électrique et unité extérieure de climatiseur comportant ladite boîte

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WO (1) WO2020073363A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104213971A (zh) * 2013-05-30 2014-12-17 常州市长江冷冲机械配件有限公司 柴油机中冷器
CN104697077A (zh) * 2015-03-26 2015-06-10 广东美的制冷设备有限公司 电路模块的散热结构和变频空调室外机
JP2016161206A (ja) * 2015-02-27 2016-09-05 ダイキン工業株式会社 冷凍装置の熱源ユニット
CN205595424U (zh) * 2016-05-09 2016-09-21 深圳市赛尔盈电子有限公司 一种ptc加热器及动力电池加热与冷却装置
CN207081120U (zh) * 2017-04-05 2018-03-09 广东美的制冷设备有限公司 空调器室外机
CN207113061U (zh) * 2017-08-02 2018-03-16 广东美的暖通设备有限公司 空调器室外机及其电控箱组件
CN207146713U (zh) * 2017-09-11 2018-03-27 广东美的暖通设备有限公司 电控盒及空调室外机
CN108024477A (zh) * 2017-11-13 2018-05-11 中国航空工业集团公司西安航空计算技术研究所 一种自震荡的强化换热装置及方法
CN207705568U (zh) * 2018-01-30 2018-08-07 万硕(成都)航空科技有限公司 一种用于小型激光冷却机箱的蒸发腔散热器

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104213971A (zh) * 2013-05-30 2014-12-17 常州市长江冷冲机械配件有限公司 柴油机中冷器
JP2016161206A (ja) * 2015-02-27 2016-09-05 ダイキン工業株式会社 冷凍装置の熱源ユニット
CN104697077A (zh) * 2015-03-26 2015-06-10 广东美的制冷设备有限公司 电路模块的散热结构和变频空调室外机
CN205595424U (zh) * 2016-05-09 2016-09-21 深圳市赛尔盈电子有限公司 一种ptc加热器及动力电池加热与冷却装置
CN207081120U (zh) * 2017-04-05 2018-03-09 广东美的制冷设备有限公司 空调器室外机
CN207113061U (zh) * 2017-08-02 2018-03-16 广东美的暖通设备有限公司 空调器室外机及其电控箱组件
CN207146713U (zh) * 2017-09-11 2018-03-27 广东美的暖通设备有限公司 电控盒及空调室外机
CN108024477A (zh) * 2017-11-13 2018-05-11 中国航空工业集团公司西安航空计算技术研究所 一种自震荡的强化换热装置及方法
CN207705568U (zh) * 2018-01-30 2018-08-07 万硕(成都)航空科技有限公司 一种用于小型激光冷却机箱的蒸发腔散热器

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