JPWO2017145253A1 - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
JPWO2017145253A1
JPWO2017145253A1 JP2018501440A JP2018501440A JPWO2017145253A1 JP WO2017145253 A1 JPWO2017145253 A1 JP WO2017145253A1 JP 2018501440 A JP2018501440 A JP 2018501440A JP 2018501440 A JP2018501440 A JP 2018501440A JP WO2017145253 A1 JPWO2017145253 A1 JP WO2017145253A1
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Prior art keywords
outdoor unit
heat exchanger
air
sheet metal
unit housing
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Japanese (ja)
Inventor
友博 永野
友博 永野
和彦 河合
和彦 河合
裕右 小山
裕右 小山
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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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
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • F24F1/18—Heat exchangers specially adapted for separate outdoor units characterised by their shape
    • 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
    • F24F1/46—Component arrangements in separate outdoor units
    • 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
    • F24F1/46—Component arrangements in separate outdoor units
    • F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
    • F24F1/50—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow with outlet air in upward direction

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

空気調和装置は、下部に吸込口が設けられ、上部に吹出口が設けられている室外機筐体を有する室外機を備え、前記室外機筐体の内部に、傾斜配置されている熱交換器と、前記熱交換器の下部に取り付けられ、空気が通過する穴が形成されている板金と、を有するものである。The air conditioner includes an outdoor unit having an outdoor unit housing provided with a suction port at a lower portion and a blower outlet at an upper portion, and the heat exchanger is disposed in an inclined manner inside the outdoor unit housing. And a sheet metal attached to the lower part of the heat exchanger and having a hole through which air passes.

Description

本発明は、空気を下側から吸い込み、上側から吹き出す室外機を備えた空気調和装置に関するものである。   The present invention relates to an air conditioner including an outdoor unit that sucks air from below and blows it out from above.

従来、室外機と室内機とを連絡配管で接続し、連絡配管を通して室外機と室内機との間で冷媒を循環させるようにした空気調和装置が知られている。このような空気調和装置の室外機では、搭載されている室外熱交換器に供給する空気を下側から吸い込み、室外熱交換器を介して熱交換された空気を上側から吹き出す、いわゆる下吸上吹タイプの構造が知られている。また、このような空気調和装置の室外機では、熱交換器を立てて配置するために、熱交換器の下側に位置するフィンの高さのバラツキを抑えるために熱交換器の下側に板金が設けられている（例えば、特許文献１参照）。   2. Description of the Related Art Conventionally, an air conditioner is known in which an outdoor unit and an indoor unit are connected by a communication pipe, and a refrigerant is circulated between the outdoor unit and the indoor unit through the communication pipe. In such an outdoor unit of an air conditioner, air that is supplied to the installed outdoor heat exchanger is sucked in from the lower side, and air that has been heat-exchanged through the outdoor heat exchanger is blown out from the upper side, so-called lower wicking A blow type structure is known. Further, in such an outdoor unit of an air conditioner, in order to arrange the heat exchanger in an upright position, it is provided on the lower side of the heat exchanger in order to suppress variations in the height of fins located on the lower side of the heat exchanger. A sheet metal is provided (see, for example, Patent Document 1).

特開２０１４−１６３５３０号公報JP 2014-163530 A

特許文献１に示されているような空気調和装置の下吸上吹タイプの室外機は、省スペース及び高性能の両立を図るために熱交換器を立てて配置していた。しかしながら、熱交換器の下側に設置される板金は、板状の部材であり、熱交換器の前面を塞いでいる。熱交換器の前面とは、下吸上吹タイプの室外機において立てて配置されている熱交換器の下部に位置する面のことをいう。   The bottom suction type outdoor unit of the air conditioning apparatus as shown in Patent Document 1 has been arranged with a heat exchanger in order to achieve both space saving and high performance. However, the sheet metal installed on the lower side of the heat exchanger is a plate-like member and closes the front surface of the heat exchanger. The front surface of the heat exchanger refers to a surface located at the lower part of the heat exchanger that is arranged upright in the lower suction blow type outdoor unit.

そのため、特許文献１に記載されているような空気調和装置では、熱交換器の下側に設置される板金による風路圧損が大きくなってしまい、風路圧損による性能低下という問題点があった。加えて、熱交換器を立てて配置しているため、熱交換器の前面の面積が減少することになっている。そのため、熱交換器の前面の面積減少による性能低下等の問題点があった。なお、この板金は強度部材ではないので、その他の機能はない。   Therefore, in the air conditioner described in Patent Document 1, the air path pressure loss due to the sheet metal installed on the lower side of the heat exchanger is increased, and there is a problem that the performance is deteriorated due to the air path pressure loss. . In addition, since the heat exchangers are arranged upright, the area of the front surface of the heat exchanger is to be reduced. For this reason, there are problems such as a decrease in performance due to a decrease in the area of the front surface of the heat exchanger. Since this sheet metal is not a strength member, it has no other function.

本発明は、上記のような課題を解決するためになされたもので、筐体内における風路圧損を抑え、熱交換器の前面の面積を拡大することで、省スペースと高性能の２つを両立させることのできる空気調和装置を提供することを目的としている。   The present invention has been made to solve the above-described problems, and suppresses air path pressure loss in the housing and expands the area of the front surface of the heat exchanger, thereby reducing both space saving and high performance. It aims at providing the air conditioning apparatus which can be made to make compatible.

本発明に係る空気調和装置は、下部に吸込口が設けられ、上部に吹出口が設けられている室外機筐体を有する室外機を備えた空気調和装置であって、前記室外機筐体の内部に、傾斜配置されている熱交換器と、前記熱交換器の下部に取り付けられ、空気が通過する穴が形成されている板金と、を有するものである。   An air conditioner according to the present invention is an air conditioner including an outdoor unit having an outdoor unit housing provided with a suction port at a lower portion and a blower outlet at an upper portion. A heat exchanger that is inclined and a sheet metal that is attached to a lower portion of the heat exchanger and has a hole through which air passes is formed.

本発明に係る空気調和装置によれば、熱交換器の下部に、空気が通過する穴が形成されている板金が取り付けられているので、風路圧損を抑えかつ熱交換器の前面面積を広くとることができ、省スペースと高性能の２つを両立させることができる。   According to the air conditioner of the present invention, a sheet metal having a hole through which air passes is attached to the lower part of the heat exchanger, so that air path pressure loss is suppressed and the front area of the heat exchanger is widened. Therefore, both space saving and high performance can be achieved.

本発明の実施の形態１に係る空気調和装置の室外機の概略構成例を示す斜視図である。It is a perspective view which shows the schematic structural example of the outdoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る空気調和装置の室外機を一側面から見た状態を示す概略側面図である。It is a schematic side view which shows the state which looked at the outdoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention from one side. 本発明の実施の形態１に係る空気調和装置の室外機を下側から見た状態の一例を示す概略下面図である。It is a schematic bottom view which shows an example of the state which looked at the outdoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention from the lower side. 本発明の実施の形態１に係る空気調和装置の室外機を下側から見た状態の他の一例を示す概略下面図である。It is a schematic bottom view which shows another example of the state which looked at the outdoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention from the lower side. 本発明の実施の形態１に係る空気調和装置の室外機を下側から見た状態の更に他の一例を示す概略下面図である。It is a schematic bottom view which shows another example of the state which looked at the outdoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention from the lower side. 本発明の実施の形態２に係る空気調和装置の室外機を一側面から見た状態を示す概略側面図である。It is a schematic side view which shows the state which looked at the outdoor unit of the air conditioning apparatus which concerns on Embodiment 2 of this invention from one side. 本発明の実施の形態２に係る空気調和装置の室外機を下側から見た状態の一例を示す概略下面図である。It is a schematic bottom view which shows an example of the state which looked at the outdoor unit of the air conditioning apparatus which concerns on Embodiment 2 of this invention from the lower side.

以下、図面を適宜参照しながら本発明の実施の形態について説明する。なお、図１を含め、以下の図面では各構成部材の大きさの関係が実際のものとは異なる場合がある。また、図１を含め、以下の図面において、同一の符号を付したものは、同一又はこれに相当するものであり、このことは明細書の全文において共通することとする。さらに、明細書全文に表わされている構成要素の形態は、あくまでも例示であって、これらの記載に限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings as appropriate. In addition, in the following drawings including FIG. 1, the relationship of the size of each component may be different from the actual one. Further, in the following drawings including FIG. 1, the same reference numerals denote the same or equivalent parts, and this is common throughout the entire specification. Furthermore, the forms of the constituent elements shown in the entire specification are merely examples, and are not limited to these descriptions.

実施の形態１．
図１は、本発明の実施の形態１に係る空気調和装置の室外機１００の概略構成例を示す斜視図である。図２は、室外機１００を一側面から見た状態を示す概略側面図である。図３は、室外機１００を下側から見た状態の一例を示す概略下面図である。図４は、室外機１００を下側から見た状態の他の一例を示す概略下面図である。図５は、室外機１００を下側から見た状態の更に他の一例を示す概略下面図である。図１〜図５に基づいて、室外機１００について説明する。Embodiment 1 FIG.
FIG. 1 is a perspective view illustrating a schematic configuration example of an outdoor unit 100 for an air-conditioning apparatus according to Embodiment 1 of the present invention. FIG. 2 is a schematic side view showing the outdoor unit 100 as viewed from one side. FIG. 3 is a schematic bottom view showing an example of the outdoor unit 100 as viewed from below. FIG. 4 is a schematic bottom view showing another example of the outdoor unit 100 as viewed from below. FIG. 5 is a schematic bottom view showing still another example of the outdoor unit 100 as viewed from below. The outdoor unit 100 will be described with reference to FIGS.

図１に示すように、室外機１００は、下吸上吹タイプの室外機である。室外機１００は、外郭を構成する室外機筐体１を有している。室外機筐体１の内部には、３つの熱交換器５が傾斜した状態で立てて配置されている。つまり、熱交換器５は、室外機筐体１を側面視した状態においてＮ字状に配置されている。なお、熱交換器５は、上端部及び下端部が熱交換器支持部材により支持された状態で、室外機筐体１に取り付けられるようになっている。また、熱交換器５の中間分岐配管を熱交換器支持部材で支持してもよい。熱交換器支持部材は、室外機筐体１の内部に固定されて熱交換器５を支持するものであり、室外機筐体１内に梁のように設置される。   As shown in FIG. 1, the outdoor unit 100 is a lower suction blow type outdoor unit. The outdoor unit 100 has an outdoor unit housing 1 that forms an outer shell. Inside the outdoor unit housing 1, three heat exchangers 5 are arranged in an inclined state. That is, the heat exchanger 5 is arranged in an N shape when the outdoor unit housing 1 is viewed from the side. The heat exchanger 5 is attached to the outdoor unit housing 1 with its upper end and lower end supported by a heat exchanger support member. Moreover, you may support the intermediate branch piping of the heat exchanger 5 with a heat exchanger support member. The heat exchanger support member is fixed to the inside of the outdoor unit housing 1 and supports the heat exchanger 5, and is installed in the outdoor unit housing 1 like a beam.

また、室外機筐体１の内部には、ファン４が熱交換器５の上方に位置するように配置されている。ここでは、ファン４が２つ配置されている状態を例に示しているが、ファン４の個数を特に限定するものではない。   Further, the fan 4 is disposed inside the outdoor unit housing 1 so as to be positioned above the heat exchanger 5. Here, a state in which two fans 4 are arranged is shown as an example, but the number of fans 4 is not particularly limited.

図２に示すように、室外機筐体１の下部には空気の流入口となる吸込口２が設けられ、室外機筐体１の上部には空気の流出口となる吹出口３が設けられている。つまり、室外機筐体１の内部は、吸込口２から吹出口３に向かって流れる空気の風路となっている。室外機筐体１の風路の一部に、ファン４及び熱交換器５が設置されている。熱交換器５がファン４よりも上流側に設置されている。各熱交換器５の下部には、板金１０が取り付けられている。この板金１０は、熱交換器５の下側に位置するフィンのバラツキを抑えるために取り付けられている。   As shown in FIG. 2, a suction port 2 serving as an air inlet is provided at the lower part of the outdoor unit housing 1, and an outlet 3 serving as an air outlet is provided at the upper part of the outdoor unit housing 1. ing. That is, the inside of the outdoor unit housing 1 is an air passage for air flowing from the suction port 2 toward the blowout port 3. A fan 4 and a heat exchanger 5 are installed in a part of the air path of the outdoor unit housing 1. A heat exchanger 5 is installed upstream of the fan 4. A sheet metal 10 is attached to the lower part of each heat exchanger 5. The sheet metal 10 is attached to suppress variations in fins located on the lower side of the heat exchanger 5.

板金１０は、熱交換器５の下部に位置するフィンに接触するように取り付けられている。板金１０の全体の大きさは、３つの熱交換器５を室外機筐体１に配置する場合、０．３５ｍ２程度となっている。
板金１０には、空気が通過する穴１１が形成されている。穴１１は、板金１０の全体の大きさの５０％以下の開口率となっている。図３に示すように、穴１１は、長円形状に構成されている。
なお、板金１０の下部には、熱交換器５の自重を支えるための支柱があり、支柱がある部分には穴１１を開口形成しない。The sheet metal 10 is attached so as to come into contact with fins located at the lower part of the heat exchanger 5. The total size of the sheet metal 10 is about 0.35 m 2 when the three heat exchangers 5 are arranged in the outdoor unit housing 1.
Holes 11 through which air passes are formed in the sheet metal 10. The hole 11 has an opening ratio of 50% or less of the entire size of the sheet metal 10. As shown in FIG. 3, the hole 11 is configured in an oval shape.
In addition, in the lower part of the sheet metal 10, there is a support for supporting the weight of the heat exchanger 5, and the hole 11 is not formed in the portion where the support is present.

板金１０に形成する穴１１の形状としては、図４に示すように、風路一次側に向かって切欠きのある長方形形状としてもよい。風路一次側とは、熱交換器５の空気の流れる側である。
また、板金１０に形成する穴１１は、図５に示すように、図３及び図４の穴１１の個数よりも増加させた個数としてもよい。
なお、図３〜図５に示す穴１１を適宜組み合わせてもよい。つまり、それぞれの穴１１の個数、形状及び大きさの設計を特に限定するものではない。ただし、図３又は図４に示すような長方形の方が、長円状より加工費は抑制される。As shown in FIG. 4, the shape of the hole 11 formed in the sheet metal 10 may be a rectangular shape with a notch toward the primary side of the air path. The air path primary side is the air flowing side of the heat exchanger 5.
Further, as shown in FIG. 5, the number of holes 11 formed in the sheet metal 10 may be increased from the number of holes 11 shown in FIGS.
In addition, you may combine the hole 11 shown in FIGS. 3-5 suitably. That is, the design of the number, shape, and size of each hole 11 is not particularly limited. However, the rectangular shape as shown in FIG. 3 or FIG. 4 is less costly than the oval shape.

次に、室外機１００の作用について説明する。
このように構成された室外機１００では、ファン４が駆動することで空気が室外機筐体１の内部に流入することになる。室外機筐体１の吸込口２から室外機筐体１の内部に吸い込まれた空気は、室外機筐体１の内部に配置されている板金１０及び熱交換器５を通過する。この空気は、熱交換器５を通過する際に、熱交換器５を流れている冷媒と熱交換する。熱交換した空気は、ファン４を通過し、吹出口３を介して室外機筐体１の外部へと吹き出される。Next, the operation of the outdoor unit 100 will be described.
In the outdoor unit 100 configured as described above, air flows into the outdoor unit housing 1 by driving the fan 4. The air sucked into the interior of the outdoor unit housing 1 from the suction port 2 of the outdoor unit housing 1 passes through the sheet metal 10 and the heat exchanger 5 disposed inside the outdoor unit housing 1. The air exchanges heat with the refrigerant flowing through the heat exchanger 5 when passing through the heat exchanger 5. The heat-exchanged air passes through the fan 4 and is blown out of the outdoor unit housing 1 through the blowout port 3.

ここで、３１０ｍ３／ｍｉｎの風量が室外機筐体１の内部を通過するものとし、元々の板金１０の面積が０．３５ｍ２であり、穴１１の全部の面積が０．０６８ｍ２とした場合を検討する。従来の板金は、熱交換器の下部の全部を塞いでいたが、板金１０には穴１１が形成されているため、熱交換器５の前面の面積が１．１％増えたことになる。具体的な例にすると、熱交換器５の前面面積を「積長１．６５ｍ×段幅１．２６ｍ×３枚＝６．２４ｍ２」とした場合、穴１１の面積０．０６８ｍ２がその１．１％になるということである。Here, it is assumed that air volume of 310m 3 / min is passed through the inside of the outdoor unit casing 1, the area of the original sheet metal 10 is 0.35 m 2, the whole of the area of the hole 11 has a 0.068M 2 Consider the case. Although the conventional sheet metal has closed the whole lower part of the heat exchanger, since the hole 11 was formed in the sheet metal 10, the area of the front surface of the heat exchanger 5 increased by 1.1%. As a specific example, when the front area of the heat exchanger 5 is “stack length 1.65 m × step width 1.26 m × 3 sheets = 6.24 m 2 ”, the area of the hole 11 is 0.068 m 2. That is 1.1%.

このことにより熱交換器５の前面の風速が１．１％減ることになり、風路圧損が１．５％低下し、ファン４の入力が２．３％低下できる。さらに、板金１０の風下で風があたっていなかったフィンと伝熱管にも風があたるようになり、熱交換効率が約５％程度向上することを試験にて確認している。   As a result, the wind speed on the front surface of the heat exchanger 5 is reduced by 1.1%, the air path pressure loss is reduced by 1.5%, and the input of the fan 4 can be reduced by 2.3%. Further, it has been confirmed by tests that the fins and the heat transfer tubes that have not been blown by the lee of the sheet metal 10 are also blown and the heat exchange efficiency is improved by about 5%.

実施の形態２．
図６は、本発明の実施の形態２に係る空気調和装置の室外機１００Ａを一側面から見た状態を示す概略側面図である。図７は、室外機１００Ａを下側から見た状態の一例を示す概略下面図である。図６及び図７に基づいて、室外機１００Ａについて説明する。なお、実施の形態２では実施の形態１との相違点を中心に説明し、実施の形態１と同一部分には、同一符号を付して説明を省略するものとする。Embodiment 2. FIG.
FIG. 6 is a schematic side view showing a state in which the outdoor unit 100A of the air-conditioning apparatus according to Embodiment 2 of the present invention is viewed from one side. FIG. 7 is a schematic bottom view showing an example of a state in which the outdoor unit 100A is viewed from the lower side. The outdoor unit 100A will be described based on FIG. 6 and FIG. In the second embodiment, differences from the first embodiment will be mainly described, and the same parts as those in the first embodiment will be denoted by the same reference numerals and description thereof will be omitted.

実施の形態１では、下吸上吹タイプの室外機１００に３つの熱交換器５を立てて配置した場合を例に説明したが、実施の形態２では、下吸上吹タイプの室外機１００Ａに１つの熱交換器５Ａを立てて配置した場合を例に説明する。   In the first embodiment, the case where the three heat exchangers 5 are arranged upright in the lower suction air blowing type outdoor unit 100 has been described as an example, but in the second embodiment, the lower suction air blowing type outdoor unit 100A. An example in which one heat exchanger 5A is arranged upright will be described.

図６に示すように、室外機１００Ａは、下吸上吹タイプの室外機である。室外機１００Ａは、外郭を構成する室外機筐体１Ａを有している。室外機筐体１Ａの内部には、１つの熱交換器５Ａが傾斜した状態で立てて配置されている。また、室外機筐体１Ａの内部には、ファン４Ａが熱交換器５Ａの上方に位置するように配置されている。なお、ファン４Ａの個数を特に限定するものではない。   As shown in FIG. 6, the outdoor unit 100 </ b> A is a lower suction blow type outdoor unit. The outdoor unit 100A has an outdoor unit housing 1A that constitutes an outer shell. Inside the outdoor unit housing 1A, one heat exchanger 5A is arranged in an inclined state. In addition, a fan 4A is disposed inside the outdoor unit housing 1A so as to be positioned above the heat exchanger 5A. The number of fans 4A is not particularly limited.

室外機筐体１Ａの下部には空気の流入口となる吸込口２Ａが設けられ、室外機筐体１Ａの上部には空気の流出口となる吹出口３Ａが設けられている。つまり、室外機筐体１Ａの内部は、吸込口２Ａから吹出口３Ａに向かって流れる空気の風路となっている。熱交換器５Ａがファン４Ａよりも上流側に設置されている。熱交換器５Ａの下部には、板金１０Ａが取り付けられている。この板金１０Ａは、熱交換器５Ａの下側に位置するフィンのバラツキを抑えるために取り付けられている。   A suction port 2A serving as an air inlet is provided in the lower part of the outdoor unit housing 1A, and a blower outlet 3A serving as an air outlet is provided in the upper part of the outdoor unit housing 1A. That is, the inside of the outdoor unit housing 1A is an air passage for air flowing from the suction port 2A toward the air outlet 3A. The heat exchanger 5A is installed on the upstream side of the fan 4A. A sheet metal 10A is attached to the lower part of the heat exchanger 5A. This sheet metal 10A is attached in order to suppress variations in fins located below the heat exchanger 5A.

また、室外機筐体１の下部には、レシーバ６が配置されている。レシーバ６は、実施の形態２に係る空気調和装置が有する冷媒回路に設置され、冷媒を一時的に貯留するものである。実施の形態２に係る空気調和装置が有する冷媒回路は、圧縮機、熱源側熱交換器（熱交換器５Ａ）、減圧装置、利用側熱交換器を冷媒が流れる冷媒配管で接続して構成される。   A receiver 6 is disposed at the lower part of the outdoor unit housing 1. The receiver 6 is installed in a refrigerant circuit included in the air-conditioning apparatus according to Embodiment 2, and temporarily stores the refrigerant. The refrigerant circuit included in the air-conditioning apparatus according to Embodiment 2 is configured by connecting a compressor, a heat source side heat exchanger (heat exchanger 5A), a decompression device, and a use side heat exchanger with refrigerant piping through which refrigerant flows. The

板金１０Ａは、熱交換器５Ａの下部に位置するフィンに接触するように取り付けられている。板金１０Ａの全体の大きさは、１つの熱交換器５を室外機筐体１に配置する場合、０．１２ｍ２程度となっている。
板金１０Ａには、空気が通過する穴１１Ａが形成されている。穴１１Ａは、板金１０Ａの全体の大きさの５０％以下の開口率となっている。図７に示すように、穴１１は、長円形状に構成されている。
なお、板金１０Ａの下部には、熱交換器５Ａの自重を支えるための支柱があり、支柱がある部分には穴１１Ａを開口形成しない。The sheet metal 10A is attached so as to come into contact with fins located at the lower part of the heat exchanger 5A. The overall size of the sheet metal 10 </ b> A is about 0.12 m 2 when one heat exchanger 5 is arranged in the outdoor unit housing 1.
A hole 11A through which air passes is formed in the sheet metal 10A. The hole 11A has an opening ratio of 50% or less of the entire size of the sheet metal 10A. As shown in FIG. 7, the hole 11 is configured in an oval shape.
In addition, in the lower part of the sheet metal 10A, there is a support for supporting the weight of the heat exchanger 5A, and the hole 11A is not formed in the portion where the support is provided.

板金１０Ａに形成する穴１１Ａの形状としては、実施の形態１で説明した図４に示すように、風路一次側に向かって切欠きのある長方形形状としてもよい。
また、板金１０Ａに形成する穴１１Ａは、実施の形態１で説明した図５に示すように、図７の穴１１Ａの個数よりも増加させた個数としてもよい。
なお、図３、図４、図７に示す穴１１Ａを適宜組み合わせてもよい。つまり、それぞれの穴１１Ａの個数、形状及び大きさ特に限定するものではない。ただし、図３又は図４に示すような長方形の方が、長円状より加工費は抑制される。As shown in FIG. 4 described in the first embodiment, the shape of the hole 11A formed in the sheet metal 10A may be a rectangular shape having a notch toward the air path primary side.
Further, the number of holes 11A formed in the sheet metal 10A may be increased from the number of holes 11A in FIG. 7, as shown in FIG. 5 described in the first embodiment.
In addition, you may combine suitably the hole 11A shown in FIG.3, FIG.4, FIG.7. That is, the number, shape, and size of each hole 11A are not particularly limited. However, the rectangular shape as shown in FIG. 3 or FIG. 4 is less costly than the oval shape.

次に、室外機１００Ａの作用について説明する。
このように構成された室外機１００Ａでは、ファン４Ａが駆動することで空気が室外機筐体１Ａの内部に流入することになる。室外機筐体１Ａの吸込口２Ａから室外機筐体１の内部に吸い込まれた空気は、室外機筐体１Ａの内部に配置されている板金１０Ａ及び熱交換器５Ａを通過する。この空気は、熱交換器５Ａを通過する際に、熱交換器５Ａを流れている冷媒と熱交換する。熱交換した空気は、ファン４Ａを通過し、吹出口３Ａを介して室外機筐体１Ａの外部へと吹き出される。Next, the operation of the outdoor unit 100A will be described.
In the outdoor unit 100A configured as described above, the air flows into the outdoor unit housing 1A by driving the fan 4A. The air sucked into the interior of the outdoor unit housing 1 from the suction port 2A of the outdoor unit housing 1A passes through the sheet metal 10A and the heat exchanger 5A disposed inside the outdoor unit housing 1A. This air exchanges heat with the refrigerant flowing through the heat exchanger 5A when passing through the heat exchanger 5A. The heat-exchanged air passes through the fan 4A and is blown out to the outside of the outdoor unit housing 1A through the blowout port 3A.

ここで、１００ｍ３／ｍｉｎの風量が室外機筐体１Ａの内部を通過するものとし、元々の熱交換器５Ａの前面の面積が０．１２ｍ２であり、穴１１Ａの全部の面積が０．０２３ｍ２とした場合を検討する。従来の板金は、熱交換器の下部の全部を塞いでいたが、板金１０Ａには穴１１Ａが形成されているため、熱交換器５Ａの前面の面積が１．１％増えたことになる。Here, it is assumed that an air volume of 100 m 3 / min passes through the interior of the outdoor unit housing 1A, the area of the front surface of the original heat exchanger 5A is 0.12 m 2 , and the total area of the hole 11A is 0.1. Consider the case of 023 m 2 . Although the conventional sheet metal has closed the whole lower part of the heat exchanger, since the hole 11A is formed in the sheet metal 10A, the area of the front surface of the heat exchanger 5A is increased by 1.1%.

このことにより熱交換器５Ａの前面の風速が１．１％減ることになり、風路圧損が１．５％低下し、ファン４Ａの入力が２．３％低下できる。さらに、板金１０Ａの風下で風があたっていなかったフィンと伝熱管にも風があたるようになり、熱交換効率が約５％程度向上すると考えられる。
また、熱交換効率を向上できるため、室外機筐体１Ａの内部スペース、詳しくは熱交換器５Ａの下部スペースにレシーバ６を配置することも可能になる。
なお、ここでは、レシーバ６を例に説明しているが、冷媒を循環させる圧縮機、ポンプ等もレシーバ６と同様に、室外機筐体１Ａの内部スペースに配置することも可能になる。As a result, the wind speed on the front surface of the heat exchanger 5A is reduced by 1.1%, the air path pressure loss is reduced by 1.5%, and the input of the fan 4A can be reduced by 2.3%. Further, it is considered that the fins and the heat transfer tubes that were not blown by the lee of the sheet metal 10A are also blown, and the heat exchange efficiency is improved by about 5%.
In addition, since the heat exchange efficiency can be improved, the receiver 6 can be arranged in the internal space of the outdoor unit housing 1A, specifically in the lower space of the heat exchanger 5A.
Here, the receiver 6 is described as an example, but a compressor, a pump, and the like that circulate the refrigerant can also be disposed in the internal space of the outdoor unit housing 1 </ b> A in the same manner as the receiver 6.

実施の形態１では熱交換器５が３つの場合を説明し、実施の形態２では熱交換器５Ａが１つの場合を説明したが、熱交換器の個数を特に限定するものではない。   In the first embodiment, the case where there are three heat exchangers 5 has been described, and in the second embodiment, the case where there is one heat exchanger 5A has been described. However, the number of heat exchangers is not particularly limited.

１ 室外機筐体、１Ａ 室外機筐体、２ 吸込口、２Ａ 吸込口、３ 吹出口、３Ａ 吹出口、４ ファン、４Ａ ファン、５ 熱交換器、５Ａ 熱交換器、６ レシーバ、１０ 板金、１０Ａ 板金、１１ 穴、１１Ａ 穴、１００ 室外機、１００Ａ 室外機。   DESCRIPTION OF SYMBOLS 1 Outdoor unit housing | casing, 1A outdoor unit housing | casing, 2 suction inlet, 2A suction inlet, 3 blower outlet, 3A blower outlet, 4 fan, 4A fan, 5 heat exchanger, 5A heat exchanger, 6 receiver, 10 sheet metal, 10A sheet metal, 11 holes, 11A holes, 100 outdoor unit, 100A outdoor unit.

Claims (7)

下部に吸込口が設けられ、上部に吹出口が設けられている室外機筐体を有する室外機を備えた空気調和装置であって、
前記室外機筐体の内部に、傾斜配置されている熱交換器と、
前記熱交換器の下部に取り付けられ、空気が通過する穴が形成されている板金と、
を有する
空気調和装置。An air conditioner provided with an outdoor unit having an outdoor unit housing in which a suction port is provided in the lower part and an outlet is provided in the upper part,
Inside the outdoor unit housing, a heat exchanger that is inclined and arranged,
A sheet metal attached to the lower part of the heat exchanger and formed with a hole through which air passes;
Having an air conditioner. 前記熱交換器を３つ配置するものにおいて、
前記室外機筐体を側面視した状態において前記熱交換器はＮ字状に配置されている
請求項１に記載の空気調和装置。In what arranges three said heat exchangers,
The air conditioner according to claim 1, wherein the heat exchanger is arranged in an N shape when the outdoor unit housing is viewed from the side. 前記穴は、
前記板金の全体の大きさの５０％以下の開口率となっている
請求項１又は２に記載の空気調和装置。The hole is
The air conditioning apparatus according to claim 1 or 2, wherein the opening ratio is 50% or less of the entire size of the sheet metal. 前記穴の形状は、
長円又は長方形である
請求項１〜３のいずれか一項に記載の空気調和装置。The shape of the hole is
It is an ellipse or a rectangle. The air conditioning apparatus as described in any one of Claims 1-3. 前記穴は、
空気の流れる側に向かって切り欠かれた切欠きを有している
請求項４に記載の空気調和装置。The hole is
The air conditioner according to claim 4, comprising a notch cut out toward an air flow side. 前記室外機筐体の内部における前記熱交換器の下部スペースにレシーバを配置した
請求項１〜５のいずれか一項に記載の空気調和装置。The air conditioner according to any one of claims 1 to 5, wherein a receiver is disposed in a lower space of the heat exchanger inside the outdoor unit housing. 前記室外機筐体の内部における前記熱交換器の下部スペースにポンプを配置した
請求項１〜６のいずれか一項に記載の空気調和装置。The air conditioning apparatus according to any one of claims 1 to 6, wherein a pump is disposed in a lower space of the heat exchanger inside the outdoor unit casing.
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WO2024069869A1 (en) * 2022-09-29 2024-04-04 日本電気株式会社 Heat exchange device and refrigeration device

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JPS5241564U (en) * 1975-09-19 1977-03-24
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JP2008075974A (en) * 2006-09-21 2008-04-03 Daikin Ind Ltd Air conditioning unit, and outdoor unit for air conditioner
JP2010286157A (en) * 2009-06-10 2010-12-24 Mayekawa Mfg Co Ltd Water heater

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Publication number Priority date Publication date Assignee Title
JPS5241564U (en) * 1975-09-19 1977-03-24
JPH03255828A (en) * 1990-03-05 1991-11-14 Hitachi Ltd Fan apparatus for air conditioner
JP2008075974A (en) * 2006-09-21 2008-04-03 Daikin Ind Ltd Air conditioning unit, and outdoor unit for air conditioner
JP2010286157A (en) * 2009-06-10 2010-12-24 Mayekawa Mfg Co Ltd Water heater

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