JP2011058695A - Floor type air conditioner - Google Patents

Floor type air conditioner Download PDF

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JP2011058695A
JP2011058695A JP2009207656A JP2009207656A JP2011058695A JP 2011058695 A JP2011058695 A JP 2011058695A JP 2009207656 A JP2009207656 A JP 2009207656A JP 2009207656 A JP2009207656 A JP 2009207656A JP 2011058695 A JP2011058695 A JP 2011058695A
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heat exchanger
main
air conditioner
indoor unit
indoor
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Yukio Ota
幸夫 太田
Satoshi Fujino
聡 藤野
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Hitachi Appliances Inc
日立アプライアンス株式会社
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor type air conditioner having a compact structure with improved efficiency of energy consumption. <P>SOLUTION: The floor type air conditioner comprises a body having a suction grille and a blow-off part, a heat exchanger arranged inside the body, and an indoor fan for blowing indoor air which has heat-exchanged with the heat exchanger from the blow-off part. The heat exchanger is arranged so that an upper part of the heat exchanger is inclined to the front-surface side of the body and so that a lower part of the heat exchanger is inclined to the back surface side of the body. The inclination angle of the heat exchanger is set to be 51-80 degrees with respect to the horizontal surface. The present invention can provide the floor type air conditioner having a compact structure with improved efficiency of energy consumption. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は床置式空気調和機の室内機に係り、特に室内機に搭載される熱交換器の構成に関する。   The present invention relates to an indoor unit of a floor-mounted air conditioner, and more particularly to a configuration of a heat exchanger mounted on the indoor unit.
従来の床置式空気調和機の室内機として、垂直に配置した熱交換器とその熱交換器の背面側に配置される室内ファンとの組み合わせにより構成されるものがある(例えば、特許文献1(第1図)参照)。特許文献1に記載のように熱交換器を垂直に配置すると、熱交換器上部近傍に配置されるファンによる空気の流動に対して、熱交換器下部近傍の空気の流動の追従性が悪く、熱交換効率低下の原因となる。   As an indoor unit of a conventional floor-mounted air conditioner, there is one configured by a combination of a vertically disposed heat exchanger and an indoor fan disposed on the back side of the heat exchanger (for example, Patent Document 1 ( See FIG. 1). When the heat exchanger is arranged vertically as described in Patent Document 1, the air flow in the vicinity of the lower part of the heat exchanger is poor with respect to the air flow by the fan arranged in the vicinity of the upper part of the heat exchanger, It causes a decrease in heat exchange efficiency.
これらを改善する方策として、ファンの有効外径を大きくすることやファンモータの回転数を増加させることで熱交換器に対する風速を増大させることが可能であるが、これらの方策は、室内機の外径寸法を大きくする必要が生じるとともに、消費エネルギーの増大という問題がある。   As measures to improve these, it is possible to increase the wind speed for the heat exchanger by increasing the effective outer diameter of the fan or increasing the number of rotations of the fan motor. There is a need to increase the outer diameter, and there is a problem of increased energy consumption.
他の従来技術として、傾斜配置した熱交換器とその熱交換器の背面側に配置される室内ファンとの組み合わせにより空気調和機を構成することにより、吸込面積を増大させるものがある(例えば、特許文献2(第1図)参照)。   As another prior art, there is one that increases the suction area by configuring an air conditioner by combining a heat exchanger arranged in an inclined manner and an indoor fan arranged on the back side of the heat exchanger (for example, (See Patent Document 2 (FIG. 1)).
しかしながら、特許文献2に示すように傾斜配置した熱交換器の構成であっても、空気流動の追従性が完全には改良されていない。また、熱交換器と送風機が上下方向に配置されることにより、室内機が大型化してしまう。   However, even if it is the structure of the heat exchanger inclinedly arrange | positioned as shown to patent document 2, the followability of an air flow is not improved completely. Moreover, an indoor unit will enlarge because a heat exchanger and an air blower are arrange | positioned at an up-down direction.
特開2005−106417号公報JP 2005-106417 A 特開2007−71513号公報JP 2007-71513 A
本発明の課題は、コンパクトな構造であって、消費エネルギーをさらに改善した床置式空気調和機を提供することにある。   An object of the present invention is to provide a floor-mounted air conditioner having a compact structure and further improved energy consumption.
上記課題を解決するために本発明に係る床置式空気調和機は、吸込グリル及び吹出部を有する本体と、本体内に配置された熱交換器と、熱交換器と熱交換した室内空気を吹出部より送風する室内ファンと、を備え、熱交換器の上部を本体の前面側,熱交換器の下部を本体の背面側に傾斜するように熱交換器を配置し、熱交換器の傾斜角度を水平面に対して51度から80度とする。   In order to solve the above-described problems, a floor-mounted air conditioner according to the present invention blows out a main body having a suction grille and a blow-out portion, a heat exchanger disposed in the main body, and indoor air heat-exchanged with the heat exchanger. An indoor fan that blows air from the section, and the heat exchanger is arranged so that the upper part of the heat exchanger is inclined to the front side of the main body and the lower part of the heat exchanger is inclined to the rear side of the main body, and the inclination angle of the heat exchanger Is set to 51 to 80 degrees with respect to the horizontal plane.
本発明によれば、コンパクトな構造であって消費エネルギーをさらに改善した床置式空気調和機を提供することができる。   According to the present invention, it is possible to provide a floor-mounted air conditioner having a compact structure and further improving energy consumption.
室内機の断面図。Sectional drawing of an indoor unit. 室内機の断面図。Sectional drawing of an indoor unit. 従来技術の室内機の断面図。Sectional drawing of the indoor unit of a prior art.
以下本発明に係る第1の実施例を図1及び図3に基づいて説明する。図1は本実施例の室内機の断面図であり、図3は従来技術の室内機の断面図である。   A first embodiment according to the present invention will be described below with reference to FIGS. FIG. 1 is a cross-sectional view of an indoor unit of the present embodiment, and FIG. 3 is a cross-sectional view of a conventional indoor unit.
本実施例の床置式空気調和機は、図1に示す室内機と図示しない室外機とから構成される。図1に示すように、室内機は、主として、室内機の前面側下部に配置された吸込グリル12(空気吸込口),室内機の上部に配置された吹出部7(空気吹出口),風向を指定の角度で調整可能とする導風板8,吸込グリル12から吸い込まれた室内空気を熱交換する熱交換器2,熱交換器の風上側に配置された吸込側のフィルター6,熱交換器2よりも室内機背面側で且つ風下側に位置し熱交換器2により熱交換された室内空気を吹出部7から送風する室内ファン3,冷房運転時に熱交換器2にて発生した凝縮水を導き排出するための凝縮水受皿5及び凝縮水受皿の排水口5a、並びに本体の剛性を確保する背面シャーシ1を備え、これら室内機の構成要素は、意匠面を構成する前面カバーを含めた筐体(室内熱交換器本体)に内包される。ここで、熱交換器2は、上部が室内機前面側に、下部が室内機背面側に傾斜して配置される。尚、4は室内ファン回転中心であり、θは熱交換器と水平基準線10との鋭角方向角度である。また、吸込グリル12の開口面積に対応して熱交換器への風速が変動し、吹出部7は風路において静圧の回収を行い風量の大小に関与する。   The floor-mounted air conditioner of this embodiment is composed of an indoor unit shown in FIG. 1 and an outdoor unit (not shown). As shown in FIG. 1, the indoor unit mainly includes a suction grill 12 (air intake port) disposed at the lower front side of the indoor unit, an air outlet 7 (air outlet) disposed at the upper part of the indoor unit, and the wind direction. Can be adjusted at a specified angle, heat exchanger 2 for exchanging heat from indoor air sucked from the suction grill 12, filter 6 on the suction side disposed on the windward side of the heat exchanger 6, and heat exchange The indoor fan located on the rear side of the indoor unit and the leeward side of the heat exchanger 2 and blows indoor air heat-exchanged by the heat exchanger 2 from the blow-out unit 7, condensed water generated in the heat exchanger 2 during cooling operation The condensate tray 5 for guiding and discharging the water, the drain outlet 5a of the condensate tray, and the rear chassis 1 for ensuring the rigidity of the main body, and the constituent elements of these indoor units include a front cover that constitutes a design surface Enclosed in a housing (indoor heat exchanger body). Here, the heat exchanger 2 is disposed such that the upper part is inclined toward the front side of the indoor unit and the lower part is inclined toward the rear side of the indoor unit. In addition, 4 is an indoor fan rotation center, (theta) is an acute angle direction angle of a heat exchanger and the horizontal reference line 10. FIG. Further, the wind speed to the heat exchanger fluctuates corresponding to the opening area of the suction grille 12, and the blowout part 7 collects static pressure in the air passage and participates in the magnitude of the air volume.
このように、上部が室内機前面側に下部が室内機背面側に傾斜するように熱交換器2を配置させることで、図3の従来技術よりも優れた効果を得ることができる。   Thus, by arranging the heat exchanger 2 so that the upper part is inclined to the front side of the indoor unit and the lower part is inclined to the rear side of the indoor unit, an effect superior to that of the prior art of FIG. 3 can be obtained.
まず、上部が室内機前面側に下部が室内機背面側に傾斜するように熱交換器2を配置させることで、フィルター6に対する通風抵抗が低減される。従って、熱交換器に対する風速が増大し、省エネルギー性の向上が可能となる。さらに、上部が室内機前面側に下部が室内機背面側に傾斜するように熱交換器2を配置させることで、吸込グリル12の上部を本体の前面側に下部を本体の背面側に傾斜するように吸込グリル12を配置することができるので、吸込グリル12の総面積が増大し、さらなる風速増大が可能となる。   First, the ventilation resistance with respect to the filter 6 is reduced by arranging the heat exchanger 2 so that the upper part is inclined to the front side of the indoor unit and the lower part is inclined to the rear side of the indoor unit. Therefore, the wind speed with respect to the heat exchanger increases, and energy saving can be improved. Furthermore, by arranging the heat exchanger 2 so that the upper part is inclined to the front side of the indoor unit and the lower part is inclined to the rear side of the indoor unit, the upper part of the suction grill 12 is inclined to the front side of the main body and the lower part is inclined to the rear side of the main body. Since the suction grill 12 can be arranged in this manner, the total area of the suction grill 12 is increased, and the wind speed can be further increased.
また、上部が室内機前面側に下部が室内機背面側に傾斜するように熱交換器2を配置させ、且つ、室内空気を室内機下部から吸込み室内機上部から吹き出すことで、図3に示すような吸込空気の滞留箇所11が小さくなるので、さらなる省エネルギー性の向上が可能となる。   Further, the heat exchanger 2 is arranged so that the upper part is inclined to the front side of the indoor unit and the lower part is inclined to the rear side of the indoor unit, and indoor air is sucked from the lower part of the indoor unit and blown out from the upper part of the indoor unit, as shown in FIG. Since the intake air staying portion 11 is small, energy saving can be further improved.
さらに、上部が室内機前面側に下部が室内機背面側に傾斜するように熱交換器2を配置させることで、室内機前面側に傾斜することにより形成された熱交換器2上部の背面側(室内機背面側)の空間に室内ファンを配置することができるので、室内機全体としてコンパクトな構造となる。また、室内ファン3を下側に移動可能であるので、吹出部7の容積を大きくとることができる。これにより吹出部7による風路の形成が容易になるとともに、室内ファン3による静圧の回収も容易となり、風速の増大、結果として省エネルギー性の向上が可能となる。   Furthermore, by arranging the heat exchanger 2 so that the upper part is inclined to the front side of the indoor unit and the lower part is inclined to the rear side of the indoor unit, the rear side of the upper part of the heat exchanger 2 formed by being inclined to the front side of the indoor unit Since the indoor fan can be arranged in the space (on the back side of the indoor unit), the entire indoor unit has a compact structure. Moreover, since the indoor fan 3 can be moved downward, the volume of the blowing part 7 can be increased. This facilitates the formation of the air path by the blow-out unit 7 and facilitates the recovery of the static pressure by the indoor fan 3, thereby increasing the wind speed and consequently improving the energy saving.
熱交換器2を傾斜配置することで構造設計的な自由度として熱交換器の高さを増加可能である。これは室内機本体に対して断面対角線方向に近く配置できるためである。   By arranging the heat exchanger 2 in an inclined manner, the height of the heat exchanger can be increased as a degree of freedom in structural design. This is because it can be arranged close to the cross section diagonal direction with respect to the indoor unit main body.
逆に性能に余裕があり熱交換器の高さを増加する必要がない場合は、熱交換器2を傾斜配置することで、凝縮水受皿の排水口5aの床面からの高さを増加することが可能である。これにより凝縮水排出の際に必要な排水角度を改善し、ヘドロや埃などによる凝縮水受皿の排水口5aのつまりなどに由来する故障の発生を低減することができる。   Conversely, when there is a margin in performance and it is not necessary to increase the height of the heat exchanger, the height from the floor surface of the drain port 5a of the condensate tray is increased by arranging the heat exchanger 2 at an angle. It is possible. As a result, the drainage angle required for draining the condensed water can be improved, and the occurrence of failure due to clogging of the drainage port 5a of the condensate tray due to sludge or dust can be reduced.
ここで、発明者による検討結果から、熱交換器2と水平基準線10との鋭角方向角度θは51度から80度が最適である。51度よりも小さい場合は親水性の熱交換フィンを使用したとしても凝縮水が熱交換器2の下部に配置される凝縮水受皿の排水口5aに滴下せずに、熱交換フィンを伝う過程で中途滴下してしまうおそれがある。80度よりも大きい場合は、吸込空気の滞留箇所11の容積が有意に減少しない。   Here, from the examination result by the inventors, the optimum acute angle θ between the heat exchanger 2 and the horizontal reference line 10 is 51 to 80 degrees. If it is less than 51 degrees, even if a hydrophilic heat exchange fin is used, the process of condensing water does not drip into the drain 5a of the condensate tray placed at the lower part of the heat exchanger 2 and travels through the heat exchange fin There is a risk of dripping. If it is greater than 80 degrees, the volume of the intake air staying portion 11 is not significantly reduced.
次に、本発明に係る第2の実施例を図2に基づいて説明する。図2は本実施例の室内機の断面図である。本実施例に係る空気調和機の基本的な構成は第1の実施例と同様であるため詳細な説明は省略し、相違点についてのみ説明する。   Next, a second embodiment according to the present invention will be described with reference to FIG. FIG. 2 is a cross-sectional view of the indoor unit of the present embodiment. Since the basic configuration of the air conditioner according to the present embodiment is the same as that of the first embodiment, detailed description thereof will be omitted, and only differences will be described.
吸込グリル12の開口面積が一定の場合、熱交換器に対する風速は吸込グリル12から室内ファン回転中心4までの距離に相関する。すなわち、回転中心4との距離が小さい吸込グリル12a,12bでの風速が大きく、回転中心4との距離が大きい吸込グリル12h,12iでの風速が小さくなる。そのため、熱交換器に対する風速分布が不均一となり、熱交換器の効率が面積増加率に対し比例しないという問題点がある。   When the opening area of the suction grill 12 is constant, the wind speed with respect to the heat exchanger correlates with the distance from the suction grill 12 to the indoor fan rotation center 4. That is, the wind speed at the suction grilles 12a and 12b with a small distance to the rotation center 4 is large, and the wind speed at the suction grilles 12h and 12i with a large distance to the rotation center 4 is small. Therefore, the wind speed distribution with respect to the heat exchanger becomes non-uniform, and there is a problem that the efficiency of the heat exchanger is not proportional to the area increase rate.
そこで本実施例においては、回転中心からの距離が近いほど吸込グリルのピッチを密にし、回転中心からの距離が遠いほど吸込グリルのピッチを疎にする(つまり、吸込グリルのピッチを回転中心からの距離に比例させる)。具体的には、図2に示すように、吸込グリル12a〜12eのピッチを密に、12h〜12iのピッチを疎として、吸込グリルの開口面積を変化させる。その結果、熱交換器に風速分布の不均一が緩和され、熱交換器効率の向上が可能となる。   Therefore, in this embodiment, the closer the distance from the rotation center, the closer the pitch of the suction grille, and the farther the distance from the rotation center, the narrower the suction grille pitch (that is, the suction grille pitch from the rotation center). Proportional to the distance). Specifically, as shown in FIG. 2, the suction grills 12a to 12e are made dense and the pitches 12h to 12i are made sparse so as to change the opening area of the suction grill. As a result, the nonuniformity of the wind speed distribution in the heat exchanger is alleviated, and the heat exchanger efficiency can be improved.
1 背面シャーシ
2 熱交換器
3 室内ファン
4 室内ファン回転中心
5 凝縮水受皿
5a 凝縮水受皿の排水口
6 フィルター
7 吹出部
8 導風板
9 前面カバー
10 水平基準線
11 吸込空気の滞留箇所
12 吸込グリル
θ 熱交換器と水平面との鋭角方向角度
DESCRIPTION OF SYMBOLS 1 Rear chassis 2 Heat exchanger 3 Indoor fan 4 Indoor fan rotation center 5 Condensate receiving tray 5a Condensate receiving tray drain 6 Filter 7 Blowing part 8 Air guide plate 9 Front cover 10 Horizontal reference line 11 Retention place 12 of intake air Grille θ Acute angle between heat exchanger and horizontal plane

Claims (3)

  1. 吸込グリル及び吹出部を有する本体と、前記本体内に配置された熱交換器と、前記熱交換器と熱交換した室内空気を前記吹出部より送風する室内ファンと、を備え、
    前記熱交換器の上部を前記本体の前面側,前記熱交換器の下部を前記本体の背面側に傾斜するように前記熱交換器を配置し、
    前記熱交換器の傾斜角度が水平面に対して51度から80度である床置式空気調和機。
    A main body having a suction grille and a blowing part, a heat exchanger arranged in the main body, and an indoor fan for blowing indoor air heat-exchanged with the heat exchanger from the blowing part,
    The heat exchanger is arranged so that the upper part of the heat exchanger is inclined to the front side of the main body and the lower part of the heat exchanger is inclined to the rear side of the main body,
    A floor-mounted air conditioner in which the inclination angle of the heat exchanger is 51 to 80 degrees with respect to a horizontal plane.
  2. 請求項1において、前記室内ファンの回転中心からの距離が近いほど前記吸込グリルのピッチを密にし、前記室内ファンの回転中心からの距離が遠いほど前記吸込グリルのピッチを疎にする床置式空気調和機。   2. The floor-type air according to claim 1, wherein the pitch of the suction grill is made closer as the distance from the rotation center of the indoor fan is closer, and the pitch of the suction grill is made smaller as the distance from the rotation center of the indoor fan is longer. Harmony machine.
  3. 請求項1又は2において、前記吸込グリルを前記本体の前面下部に、前記吹出部を前記本体の上部に配置し、
    前記吸込グリルの上部を前記本体の前面側,前記吸込グリルの下部を前記本体の背面側に傾斜するように前記吸込グリルを配置し、
    前記室内ファンを、前記本体の前面側に配置された前記熱交換器の上部と前記本体の背面側との間に配置する床置式空気調和機。
    In Claim 1 or 2, the suction grill is arranged at the front lower part of the main body, and the blowing part is arranged at the upper part of the main body.
    The suction grill is arranged so that the upper part of the suction grill is inclined to the front side of the main body and the lower part of the suction grill is inclined to the rear side of the main body,
    A floor-mounted air conditioner in which the indoor fan is disposed between an upper portion of the heat exchanger disposed on the front side of the main body and a rear side of the main body.
JP2009207656A 2009-09-09 2009-09-09 Floor type air conditioner Withdrawn JP2011058695A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013150568A1 (en) 2012-04-06 2013-10-10 三菱電機株式会社 Floor-mounted air conditioner
CN106247604A (en) * 2016-08-15 2016-12-21 安徽天祥空调科技有限公司 A kind of air-conditioning heat exchanger easy to assemble

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013150568A1 (en) 2012-04-06 2013-10-10 三菱電機株式会社 Floor-mounted air conditioner
US9581379B2 (en) 2012-04-06 2017-02-28 Mitsubishi Electric Corporation Floor-standing air-conditioning apparatus
CN106247604A (en) * 2016-08-15 2016-12-21 安徽天祥空调科技有限公司 A kind of air-conditioning heat exchanger easy to assemble

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