JP4675799B2 - Air conditioner - Google Patents

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JP4675799B2
JP4675799B2 JP2006048756A JP2006048756A JP4675799B2 JP 4675799 B2 JP4675799 B2 JP 4675799B2 JP 2006048756 A JP2006048756 A JP 2006048756A JP 2006048756 A JP2006048756 A JP 2006048756A JP 4675799 B2 JP4675799 B2 JP 4675799B2
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heat exchanger
air
front upper
electrostatic precipitator
air conditioner
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宏樹 岡澤
敬英 田所
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Mitsubishi Electric Corp
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Description

本発明は、クロスフローファンを有する空気調和機に係り、特に、電気集塵装置のサイズを大きくすることなく集塵性能を向上させた空気調和機に関する。   The present invention relates to an air conditioner having a cross-flow fan, and more particularly to an air conditioner with improved dust collection performance without increasing the size of an electric dust collector.

従来の空気調和機は、クロスフローファン、熱交換器及び熱交換器の背面側の空気通路に設けられた電機集塵器を備え、熱交換器の背面側の空気通路を外部と連通させるための開口部を、集塵器より上方に設けている。この開口部に、空気調和運転中に閉じ、空気調和運転停止時に空気清浄運転を行うときに開く開閉弁を設けている（例えば、特許文献１参照）。   A conventional air conditioner includes a cross flow fan, a heat exchanger, and an electric dust collector provided in an air passage on the back side of the heat exchanger, so that the air passage on the back side of the heat exchanger communicates with the outside. Is provided above the dust collector. An opening / closing valve that is closed during air conditioning operation and opened when performing air cleaning operation when the air conditioning operation is stopped is provided in the opening (see, for example, Patent Document 1).

特開平１０−３３２１６６号公報（段落００２０、００２２、図１、図６）Japanese Patent Laid-Open No. 10-332166 (paragraphs 0020 and 0022, FIGS. 1 and 6)

従来の空気調和機は、電気集塵器を熱交換器の風上側に設置しており、電気集塵器の通過風量が小さいため十分な集塵性能を得ることができず、通過風量を大きくするには電気集塵器のサイズを大きくしなければならず、空気調和機のサイズも大きくなるという問題があった。
また、電気集塵器を熱交換器の風上側に設置した場合、熱交換器がクロスフローファンに近づくため、クロスフローファンの吸込み領域において、翼の入射角が大きくなるため、失速しやすくなり、ファン性能が低下するという問題があった。
また、電気集塵器を熱交換器の風上側に設置した場合、電気集塵器を取り外しにくいという問題があった。 In conventional air conditioners, an electric dust collector is installed on the windward side of the heat exchanger, and the amount of air passing through the electric dust collector is small, so that sufficient dust collection performance cannot be obtained. In order to achieve this, the size of the electric dust collector must be increased, and the size of the air conditioner also increases.
In addition, when the electrostatic precipitator is installed on the windward side of the heat exchanger, the heat exchanger approaches the cross flow fan, so the blade incident angle increases in the suction area of the cross flow fan, and it is easy to stall. There was a problem that the fan performance deteriorated.
In addition, when the electrostatic precipitator is installed on the windward side of the heat exchanger, there is a problem that it is difficult to remove the precipitator.

この発明は、上述のような課題を解決するためになされたもので、第１の目的は、電気集塵装置のサイズを大きくすることなく、集塵性能を向上した空気調和機を得るものである。
また、第２の目的は、電気集塵器を取り外しやすい空気調和機を得るものである。 The present invention has been made to solve the above-described problems, and a first object is to obtain an air conditioner having improved dust collection performance without increasing the size of the electric dust collector. is there.
Moreover, the 2nd objective is to obtain the air conditioner which is easy to remove an electric dust collector.

この発明に係る空気調和機は、前面及び上面に吸込み口、下面に吹出し口が設けられた室内ユニット本体と、前記吹出し口に対応して設けられたクロスフローファンと、前記前面吸込口に対向して配設され、前面上部熱交換器及び前面下部熱交換器からなる前面熱交換器と、この前面熱交換器の背面側に傾斜して設けられた背面熱交換器と、前記室内ユニット本体の前面に上部が丸み部を形成するように設けられた空気清浄フィルターと、前記前面上部熱交換器と前記背面熱交換器の上方に略水平に配置され、前記空気清浄フィルターに対向する面が前記丸み部に沿った形状である電気集塵装置と、を備え、前記前面上部熱交換器を略垂直配置したものである。 The air conditioner according to the present invention has an indoor unit main body provided with a suction port on the front surface and an upper surface and a blower port on the lower surface, a cross flow fan provided corresponding to the blower port, and the front suction port. A front heat exchanger comprising a front upper heat exchanger and a front lower heat exchanger, a rear heat exchanger inclined to the rear side of the front heat exchanger, and the indoor unit main body An air purifying filter provided so that the upper part forms a rounded part on the front surface of the front surface, and a surface that is disposed substantially horizontally above the front upper heat exchanger and the rear heat exchanger, and faces the air purifying filter. An electric dust collector having a shape along the rounded portion, and the front upper heat exchanger is arranged substantially vertically .

この発明によれば、前記前面上部熱交換器と前記背面熱交換器の上方に略水平に配置された電気集塵装置を備えたので、電気集塵装置のサイズを大きくすることなく、電気集塵装置の通過風量を大きくすることができるため集塵性能を向上することができる。   According to the present invention, since the electrostatic precipitator disposed substantially horizontally above the front upper heat exchanger and the rear heat exchanger is provided, the electric collector can be obtained without increasing the size of the electrostatic precipitator. Since the passing air volume of the dust device can be increased, the dust collection performance can be improved.

実施の形態１．
図１はこの発明の実施の形態１に係わる空気調和機の室内ユニットの断面図である。
図１において、空気調和機の室内ユニット９は、クロスフローファン１、前面の吸込み口８に対向して設けられた前面上部熱交換器２と前面下部熱交換器３、上縁部が前面上部熱交換器２の上縁部に接して上面の吸込み口８に対向する位置に、下縁部が前面上部熱交換器２から離れる方向に傾斜して配設された背面熱交換器４、空気清浄フィルター５、前面上部熱交換器２と背面熱交換器の上方に略水平に配置された前記電気集塵装置６、下面に設けられた吹出し口７及び上面に設けられた吸込み口８を備えている。
ここで、前面上部熱交換器２と前面下部熱交換器３は、前面熱交換器の段数のうち、上側半分を前面上部熱交換器２、下側半分を前面下部熱交換器３とする。 Embodiment 1 FIG.
1 is a cross-sectional view of an indoor unit of an air conditioner according to Embodiment 1 of the present invention.
In FIG. 1, an indoor unit 9 of an air conditioner includes a cross-flow fan 1, a front upper heat exchanger 2 and a front lower heat exchanger 3 that are provided to face a front suction port 8, and an upper edge is an upper front portion. Rear heat exchanger 4 in which the lower edge is inclined in a direction away from the front upper heat exchanger 2 at a position facing the upper edge of the heat exchanger 2 and facing the suction port 8 on the upper surface, air The cleaning filter 5, the front upper heat exchanger 2, the electric dust collector 6 disposed substantially horizontally above the rear heat exchanger, the blowout port 7 provided on the lower surface, and the suction port 8 provided on the upper surface are provided. ing.
Here, in the front upper heat exchanger 2 and the front lower heat exchanger 3, of the number of stages of the front heat exchanger, the upper half is the front upper heat exchanger 2 and the lower half is the front lower heat exchanger 3.

クロスフローファン１のファン径はφ７０ｍｍ、前面上部熱交換器２、前面下部熱交換器３、背面熱交換器４は列ピッチ１２ｍｍ、段ピッチ１９ｍｍ、通風抵抗２０Ｖ１．４［Ｐａ］（Ｖは熱交換器の前面風速［ｍ／ｓ］）、電気集塵装置６は高さ３０ｍｍ、室内ユニット９は高さ２９８ｍｍ、奥行き１５０ｍｍである。電気集塵装置６は高圧の針電極を有し、針電極と金属からなる前面上部熱交換器２、前面下部熱交換器３、背面熱交換器４との最小距離は２０ｍｍ以上離してある。
また、電気集塵装置６は高さ３０ｍｍあるので、高さが５ｍｍ位の脱臭フィルターの場合と比べ背面熱交換器４等とクロスフローファン１の距離が小さくなるという制約がある。
電気集塵装置６の桟１２は壁面部であるが、桟１２は風の流れ方向と平行に設置した場合は通風抵抗が小さいが、垂直に設置すると通風抵抗が大きくなる。 The fan diameter of the cross flow fan 1 is 70 mm, the front upper heat exchanger 2, the front lower heat exchanger 3, and the rear heat exchanger 4 have a row pitch of 12 mm, a step pitch of 19 mm, and a ventilation resistance of 20 V 1.4 [Pa] Front wind speed [m / s] of the exchanger, the electrostatic precipitator 6 is 30 mm high, the indoor unit 9 is 298 mm high and 150 mm deep. The electrostatic precipitator 6 has a high-pressure needle electrode, and the minimum distance between the needle electrode and the front upper heat exchanger 2, the front lower heat exchanger 3, and the rear heat exchanger 4 made of metal is separated by 20 mm or more.
Moreover, since the electrostatic precipitator 6 has a height of 30 mm, there is a restriction that the distance between the rear heat exchanger 4 and the cross flow fan 1 is smaller than that in the case of a deodorizing filter having a height of about 5 mm.
The crosspiece 12 of the electrostatic precipitator 6 is a wall surface portion. However, the crosspiece 12 has a small ventilation resistance when installed in parallel with the flow direction of the wind, but increases the ventilation resistance when installed vertically.

次に、この発明の実施の形態１の空気調和機の室内ユニット９の動作について図１により説明する。クロスフローファン１がファンモータ１０の作動により回転すると、室内ユニット９の外部にある空気が前面の吸込み口８から吸引され、前面上部熱交換器２、前面下部熱交換器３を経由し、上面の吸込み口８から吸引された空気は、電気集塵装置６、前面上部熱交換器２の上部、背面熱交換器４を経由してクロスフローファン１に達し、吹出し口７から吹出される。ここで、前面上部熱交換器２、前面下部熱交換器３、背面熱交換器４は空気と熱交換を行い、空気を冷房運転時は冷却、暖房運転時は加熱する。   Next, the operation of the indoor unit 9 of the air conditioner according to Embodiment 1 of the present invention will be described with reference to FIG. When the cross flow fan 1 is rotated by the operation of the fan motor 10, the air outside the indoor unit 9 is sucked from the front suction port 8, passes through the front upper heat exchanger 2 and the front lower heat exchanger 3, The air sucked from the suction port 8 reaches the cross flow fan 1 via the electric dust collector 6, the upper part of the front upper heat exchanger 2, and the rear heat exchanger 4, and is blown out from the blower port 7. Here, the front upper heat exchanger 2, the front lower heat exchanger 3, and the rear heat exchanger 4 exchange heat with air, and cool the air during the cooling operation and heat the air during the heating operation.

ここで、電気集塵装置６の設置位置による、電気集塵装置６の通過風量の変化を調べた結果について、図２〜４により説明する。
図２〜４は電気集塵装置６の通過風量／吹き出し風量を計算するときの電気集塵装置６、前面上部熱交換器２及び背面熱交換器４の配置条件を示すものであり、図２は電気集塵装置６を、前面上部熱交換器２と、背面熱交換器４の上部に略水平に設置した場合、図３は電気集塵装置６を前面上部熱交換器２の前方に垂直に設置した場合、図４は電気集塵装置６を前面上部熱交換器２、前面下部熱交換器３の中央部の前方に垂直に設置した場合を各々示し、いずれも、空気清浄フィルター５と桟１２がない状態である。 Here, the result of investigating the change in the passing air volume of the electrostatic precipitator 6 depending on the installation position of the electrostatic precipitator 6 will be described with reference to FIGS.
2 to 4 show the arrangement conditions of the electric dust collector 6, the front upper heat exchanger 2, and the rear heat exchanger 4 when calculating the passing air amount / outflow air amount of the electric dust collector 6. FIG. When the electrostatic precipitator 6 is installed substantially horizontally above the front upper heat exchanger 2 and the rear heat exchanger 4, FIG. 4 shows the case where the electrostatic precipitator 6 is installed vertically in front of the center of the front upper heat exchanger 2 and the front lower heat exchanger 3, respectively. There is no crosspiece 12.

図２〜４において、線分ＡＢは電気集塵装置６の通過風量を求めるための検査面、線分ＸＹは室内ユニット９の吹出し風量を求めるための検査面であり、計算方法は同一形状の電気集塵装置６を用いて、クロスフローファンの回転数を１８００［ｒｐｍ］、熱交換器２、３、４の通風抵抗を２０Ｖ１．４［Ｐａ］（Ｖは熱交換器の前面風速［ｍ／ｓ］）、電気集塵装置６の通風抵抗を３Ｖ１．５［Ｐａ］（Ｖは電気集塵装置６の前面風速［ｍ／ｓ］）の条件で図２〜４の配置で（電気集塵装置６の通過風量／吹き出し風量の）流体解析を行った。
表１はこの結果を示すもので、図２〜４に示した電気集塵装置６の設置位置の違いによる電気集塵装置の通過風量／吹出し風量を示す。 2 to 4, a line AB is an inspection surface for obtaining the passing air volume of the electrostatic precipitator 6, and a line XY is an inspection surface for obtaining the air flow of the indoor unit 9, and the calculation method is the same shape Using the electric dust collector 6, the rotational speed of the cross flow fan is 1800 [rpm], the ventilation resistance of the heat exchangers 2, 3, 4 is 20 V 1.4 [Pa] (V is the front wind speed of the heat exchanger [m / S]), and the ventilation resistance of the electrostatic precipitator 6 is 3V1.5 [Pa] (V is the wind speed [m / s] of the front surface of the electrostatic precipitator 6). Fluid analysis (of passing air volume / outflow volume of dust device 6) was performed.
Table 1 shows this result, and shows the passing air amount / blowing air amount of the electrostatic precipitator due to the difference in the installation position of the electrostatic precipitator 6 shown in FIGS.

Figure 0004675799
Figure 0004675799

表１から電気集塵装置６を前面上部熱交換器２、前面下部熱交換器３の上部に略水平に設置した場合（図２）に最も電気集塵装置６の通過風量が大きく、電気集塵装置６を前面上部熱交換器２の前方に垂直に設置した場合（図３）、電気集塵装置６を前面上部熱交換器２、前面下部熱交換器３の中央部の前方に垂直に設置した場合（図４）の順に少なくなる。電気集塵装置６を前面上部熱交換器２、前面下部熱交換器３の上部に略水平に設置した場合（図２）に最も電気集塵装置６の通過風量が大きくなるのは、電気集塵装置６の線分ＡＢにおいて、点Ａ、Ｂ近くの領域の風速が速いので、前面上部熱交換器２、前面下部熱交換器３、背面熱交換器４のうち、前面上部熱交換器２が最も風が流れにくくなるためである。   From Table 1, when the electrostatic precipitator 6 is installed almost horizontally on the upper part of the front upper heat exchanger 2 and lower front heat exchanger 3 (FIG. 2), the amount of air passing through the electrostatic precipitator 6 is the largest. When the dust device 6 is installed vertically in front of the front upper heat exchanger 2 (FIG. 3), the electrostatic dust collector 6 is vertically placed in front of the center of the front upper heat exchanger 2 and front lower heat exchanger 3. In the case of installation (FIG. 4), the number decreases. When the electrostatic precipitator 6 is installed substantially horizontally above the front upper heat exchanger 2 and the lower front heat exchanger 3 (FIG. 2), the amount of air passing through the electrostatic precipitator 6 is the largest. In the line segment AB of the dust device 6, the wind speed in the area near the points A and B is fast, so that the front upper heat exchanger 2 among the front upper heat exchanger 2, front lower heat exchanger 3, and rear heat exchanger 4. This is because the wind is most difficult to flow.

なお、電気集塵装置６を通過した空気は、背面熱交換器４と前面上部熱交換器２の上部を通過する。
このように、電気集塵装置６を前面上部熱交換器２、前面下部熱交換器３の上部に略水平に設置することにより、電気集塵装置６の通過風量を大きくすることができるため、集塵性能、脱臭性能を向上することができる。また、室内ユニット９の奥行きも小さくできる。 The air that has passed through the electrostatic precipitator 6 passes through the upper part of the rear heat exchanger 4 and the front upper heat exchanger 2.
Thus, since the electrostatic precipitator 6 can be installed substantially horizontally above the front upper heat exchanger 2 and the front lower heat exchanger 3, the amount of air passing through the electrostatic precipitator 6 can be increased. Dust collection performance and deodorization performance can be improved. Further, the depth of the indoor unit 9 can be reduced.

以上のように、クロスフローファン１、前面上部熱交換器２、前面下部熱交換器３、背面熱交換器４、空気清浄フィルター５及び電気集塵装置６を備えた空気調和機において、電気集塵装置６を前記前面上部熱交換器２と前記背面熱交換器４の上方に略水平に配置したので、電気集塵装置６のサイズを大きくすることなく、通過風量を増加させ、集塵性能を向上させることができる。
また、電気集塵装置６を背面熱交換器４の後方に配置するよりは、電気集塵装置６の取り外しをし易くすることができる。 As described above, in the air conditioner including the cross flow fan 1, the front upper heat exchanger 2, the front lower heat exchanger 3, the rear heat exchanger 4, the air cleaning filter 5, and the electric dust collector 6, Since the dust device 6 is disposed substantially horizontally above the upper front heat exchanger 2 and the rear heat exchanger 4, the amount of passing air can be increased without increasing the size of the electrostatic dust collector 6, and the dust collection performance Can be improved.
In addition, it is possible to easily remove the electric dust collector 6 rather than disposing the electric dust collector 6 behind the rear heat exchanger 4.

なお、本実施の形態では、電気集塵装置６全体を略水平に配置した場合を示したが、電気集塵装置６の全体図は、図５に示すように、電源部１４と集塵部１５からなるが、電源部１４は壁面で、風を通さないため、通風抵抗となる。この通風抵抗を低減するため、図６に示すように、電源部１４を背面熱交換器４と電気集塵装置６に囲まれた空間１６に設置してもよい。
また、空気清浄フィルター５の形状や室内ユニット９のデザインにより、略水平に設置しくい場合もあるため、電気集塵装置６を略水平に対して±２０％以内に設置してもよい。２０％以内であれば、電気集塵装置６の通過風量に大差がないからである。 In the present embodiment, the case where the entire electrostatic precipitator 6 is arranged substantially horizontally is shown. However, as shown in FIG. 15, the power supply unit 14 is a wall surface and does not allow wind to pass therethrough. In order to reduce this ventilation resistance, as shown in FIG. 6, you may install the power supply part 14 in the space 16 enclosed by the back surface heat exchanger 4 and the electrical dust collector 6. As shown in FIG.
Further, depending on the shape of the air purification filter 5 and the design of the indoor unit 9, it may not be installed substantially horizontally. Therefore, the electrostatic precipitator 6 may be installed within ± 20% of the substantially horizontal. It is because there is no big difference in the passing air volume of the electrostatic precipitator 6 if it is within 20%.

実施の形態２．
実施の形態１では、電気集塵装置６の設置位置による、電気集塵装置６の通過風量の変化を調べ、電気集塵装置６の配置を前面上部熱交換器２と前記背面熱交換器４の上方に略水平に配置したが、本実施の形態はさらに、前面上部熱交換器２の配置角度とファン入力の変化を調べ、前面上部熱交換器２の配置角度を定めたものである。
図７はこの発明の実施の形態１に係わる空気調和機の室内ユニットの断面図である。 Embodiment 2. FIG.
In Embodiment 1, the change in the amount of air passing through the electrostatic precipitator 6 according to the installation position of the electrostatic precipitator 6 is examined, and the arrangement of the electrostatic precipitator 6 is changed to the front upper heat exchanger 2 and the rear heat exchanger 4. However, in the present embodiment, the change in the arrangement angle of the front upper heat exchanger 2 and the fan input is further examined to determine the arrangement angle of the front upper heat exchanger 2.
FIG. 7 is a sectional view of the indoor unit of the air conditioner according to Embodiment 1 of the present invention.

図７において実施の形態１の図１と同一部分には同一の符号を付し説明を省略する。
前面上部熱交換器２の上端の点Ｃ、下端の点Ｆから空気清浄フィルター５に水平線を引き、その交点を点Ｄ、Ｅとする。前面上部熱交換器２と、背面熱交換器４の設置角度を変え、面積ＣＤＥＦを変えたときの、１２ｍ3／ｍｉｎのファン入力の変化を調べた。その結果を図８に示す。 In FIG. 7, the same parts as those in FIG.
A horizontal line is drawn from the upper end point C and the lower end point F of the front upper heat exchanger 2 to the air cleaning filter 5, and the intersections are defined as points D and E. The change of the fan input of 12 m 3 / min when the installation angle of the front upper heat exchanger 2 and the rear heat exchanger 4 was changed and the area CDEF was changed was examined. The result is shown in FIG.

図８に示すように、面積ＣＤＥＦが小さいほど、ファン入力は小さくなる。これは面積ＣＤＥＦが小さいほど、すなわち、前面上部熱交換器２が垂直に配置するほど、クロスフローファン１から遠ざかり、クロスフローファン１の吸込み領域１４においてクロスフローファン１の翼の入射角が小さくなり、０°に近づきクロスフローファン１の効率が向上するためである。
ここで、クロスフローファン１の翼の入射角について図９により説明する。
図において、クロスフローファン１の翼２０の外周側先端の円弧部２１の、中心を点Ｐ、中点を点Ｑとする。直線ＰＱと、翼２０への空気の、相対速度場で表したときの、流入速度ベクトル２２とのなす角度が入射角２３である。 As shown in FIG. 8, the smaller the area CDEF, the smaller the fan input. This is because the smaller the area CDEF, that is, the more the front upper heat exchanger 2 is arranged vertically, the farther away from the cross flow fan 1, the smaller the incident angle of the blades of the cross flow fan 1 in the suction region 14 of the cross flow fan 1. This is because the efficiency of the cross flow fan 1 is improved as it approaches 0 °.
Here, the incident angle of the blades of the crossflow fan 1 will be described with reference to FIG.
In the figure, the center of the circular arc portion 21 at the tip of the outer peripheral side of the blade 20 of the crossflow fan 1 is a point P and the middle point is a point Q. The angle formed between the straight line PQ and the inflow velocity vector 22 when expressed in the relative velocity field of the air to the blade 20 is the incident angle 23.

また、電気集塵装置６を前面上部熱交換器２と、背面熱交換器４の上部に設置しない場合は、空気清浄フィルター５が直線でない丸み部５ａを有するとき、前面上部熱交換器２が丸み部５ａと交差しないようにするため、前面上部熱交換器２を傾斜して設置しなければならず、面積ＣＤＥＦが大きくなり、ファン入力が大きくなるが、図７に示したように電気集塵装置６を前面上部熱交換器２と、背面熱交換器４の上部に設置し、空気清浄フィルター５側の形状を丸み部５ａに沿った形状にし、前面上部熱交換器２を垂直に配置することにより、電気集塵装置６の通過風量を大きくし、かつファン入力を小さくすることができる。   Further, when the electric dust collector 6 is not installed on the upper part of the front upper heat exchanger 2 and the rear heat exchanger 4, when the air cleaning filter 5 has a non-straight round part 5a, the front upper heat exchanger 2 is In order not to intersect with the rounded portion 5a, the front upper heat exchanger 2 must be installed with an inclination, and the area CDEF increases and the fan input increases. However, as shown in FIG. The dust device 6 is installed on the upper part of the front upper heat exchanger 2 and the rear heat exchanger 4, the shape of the air purifying filter 5 side is formed along the rounded part 5a, and the front upper heat exchanger 2 is arranged vertically. By doing so, the passing air volume of the electrostatic precipitator 6 can be increased and the fan input can be reduced.

なお、背面熱交換器４は水平線に対する設置角度θが３５°未満のとき、冷房運転時において空気が背面熱交換器４を通過する際に凝縮され、水滴が生じ、クロスフローファンに付着し、室内に吹出されるが、設置角度θを３５°以上とすると水滴が生じなかった。 そこで、背面熱交換器４は水平線に対する設置角度θを３５°以上とした。   In addition, when the installation angle θ with respect to the horizontal line is less than 35 °, the back heat exchanger 4 is condensed when air passes through the back heat exchanger 4 during cooling operation, water droplets are generated, and are attached to the cross flow fan. Although it was blown into the room, water drops did not occur when the installation angle θ was 35 ° or more. Therefore, the rear surface heat exchanger 4 has an installation angle θ with respect to the horizontal line of 35 ° or more.

また、室内ユニット９の奥行きを大きくし、垂直配置された前面上部熱交換器２と背面熱交換器４との間に隙間が生じた場合、冷房運転時にこの隙間を通過した空気が、クロスフローファン１と前面上部熱交換器２、前面下部熱交換器３、背面熱交換器４との間で、前面上部熱交換器２、前面下部熱交換器３、背面熱交換器４を通過した空気と混合させるらめ凝縮され、水滴が生じ、クロスフローファンに付着し、室内１６に吹出される。
これを防ぐため、板などを用いて隙間を塞ぐとファン入力の悪化の原因となるが、水滴が生じると重大な品質問題（例えば、室内において室内ユニットの近くに設置されたテレビに水滴が垂れて発生した故障等）を招く場合があるので、前面上部熱交換器２の上部の設置角度を水平線に対して３５°以上なるように傾斜させ、前面上部熱交換器２と背面熱交換器４との隙間を塞いでもよい。 In addition, when the depth of the indoor unit 9 is increased and a gap is generated between the front upper heat exchanger 2 and the rear heat exchanger 4 that are vertically arranged, the air that has passed through the gap during the cooling operation is cross-flowed. The air that has passed through the front upper heat exchanger 2, the front lower heat exchanger 3, and the rear heat exchanger 4 between the fan 1, the front upper heat exchanger 2, the front lower heat exchanger 3, and the rear heat exchanger 4. The water droplets are condensed to form water droplets, adhere to the cross flow fan, and are blown out into the room 16.
To prevent this, closing the gap with a plate or the like will cause the fan input to deteriorate, but if water drops occur, a serious quality problem (for example, water drops on a television set near an indoor unit indoors) In such a case, the installation angle of the upper part of the front upper heat exchanger 2 is inclined so as to be 35 ° or more with respect to the horizontal line, and the front upper heat exchanger 2 and the rear heat exchanger 4 are You may close the gap.

以上のように、前記前面上部熱交換器２を略垂直配置したので、前面熱交換器上部２を、クロスフローファン１から可能な限り離れるよう配置し、クロスフローファン１の吸込み領域１４において、翼２０の入射角２３が大きくなるのを抑制し、ファン性能を向上させることができる。
また、前記背面熱交換器４の水平線に対する設置角度θを３５°以上としたので、水滴が生じ、クロスフローファン１に付着し、室内に吹出されるのを防ぐことができる。 As described above, since the front upper heat exchanger 2 is disposed substantially vertically, the front heat exchanger upper portion 2 is disposed as far as possible from the cross flow fan 1, and in the suction region 14 of the cross flow fan 1, An increase in the incident angle 23 of the blade 20 can be suppressed, and the fan performance can be improved.
Moreover, since the installation angle θ with respect to the horizontal line of the rear heat exchanger 4 is set to 35 ° or more, it is possible to prevent water droplets from being generated, adhering to the cross flow fan 1 and being blown into the room.

この発明の実施の形態１に係わる空気調和機の室内ユニットの断面図である。It is sectional drawing of the indoor unit of the air conditioner concerning Embodiment 1 of this invention. この発明の実施の形態１に係わる空気調和機の室内ユニットの電気集塵装置を、前面上部熱交換器と、背面熱交換器の上部に略水平に設置したときの断面図である。It is sectional drawing when the electrostatic precipitator of the indoor unit of the air conditioner concerning Embodiment 1 of this invention is installed substantially horizontally on the front upper part heat exchanger and the upper part of a back surface heat exchanger. この発明の実施の形態１に係わる空気調和機の室内ユニットの電気集塵装置を、前面上部熱交換器の前方に垂直に設置したときの断面図である。It is sectional drawing when the electrostatic precipitator of the indoor unit of the air conditioner concerning Embodiment 1 of this invention is installed perpendicularly | vertically in front of the front upper heat exchanger. この発明の実施の形態１に係わる空気調和機の室内ユニットの電気集塵装置を、前面上部熱交換器と前面下部熱交換器の中央部に垂直に設置したときの断面図である。It is sectional drawing when the electrostatic precipitator of the indoor unit of the air conditioner concerning Embodiment 1 of this invention is installed perpendicularly | vertically in the center part of a front upper heat exchanger and a front lower heat exchanger. この発明の実施の形態１に係わる空気調和機の電気集塵装置の全体を示す斜視図である。It is a perspective view which shows the whole electric dust collector of the air conditioner concerning Embodiment 1 of this invention. この発明の実施の形態１に係わる空気調和機の室内ユニットの断面図である。It is sectional drawing of the indoor unit of the air conditioner concerning Embodiment 1 of this invention. この発明の実施の形態２に係わる空気調和機の室内ユニットの断面図である。It is sectional drawing of the indoor unit of the air conditioner concerning Embodiment 2 of this invention. この発明の実施の形態２に係わる空気調和機の室内ユニットのファン入力の変化を示す図である。It is a figure which shows the change of the fan input of the indoor unit of the air conditioner concerning Embodiment 2 of this invention. この発明の実施の形態２に係わる空気調和機の室内ユニットのクロスフローファンの翼の入射角についての説明図である。It is explanatory drawing about the incident angle of the blade | wing of the crossflow fan of the indoor unit of the air conditioner concerning Embodiment 2 of this invention.

符号の説明Explanation of symbols

１ クロスフローファン、２ 前面上部熱交換器、３ 前面下部熱交換器、４ 背面熱交換器、５ 空気清浄フィルター、６ 電気集塵装置、７ 吹出し口、８ 吸込み口、９ 室内ユニット。
DESCRIPTION OF SYMBOLS 1 Cross flow fan, 2 Front upper heat exchanger, 3 Front lower heat exchanger, 4 Rear heat exchanger, 5 Air purification filter, 6 Electric dust collector, 7 Air outlet, 8 Air inlet, 9 Indoor unit.

Claims (2)

前面及び上面に吸込み口、下面に吹出し口が設けられた室内ユニット本体と、
前記吹出し口に対応して設けられたクロスフローファンと、
前記前面吸込口に対向して配設され、前面上部熱交換器及び前面下部熱交換器からなる前面熱交換器と、
この前面熱交換器の背面側に傾斜して設けられた背面熱交換器と、
前記室内ユニット本体の前面に上部が丸み部を形成するように設けられた空気清浄フィルターと、
前記前面上部熱交換器と前記背面熱交換器の上方に略水平に配置され、前記空気清浄フィルターに対向する面が前記丸み部に沿った形状である電気集塵装置と、
を備え、
前記前面上部熱交換器を略垂直配置したことを特徴とする空気調和機。 An indoor unit main body provided with a suction port on the front surface and an upper surface and an outlet port on the lower surface;
A cross flow fan provided corresponding to the outlet,
A front heat exchanger that is disposed to face the front suction port and includes a front upper heat exchanger and a front lower heat exchanger;
A back heat exchanger provided at an angle to the back side of the front heat exchanger;
An air purifying filter provided on the front surface of the indoor unit main body so that the upper part forms a rounded portion;
An electrostatic precipitator disposed substantially horizontally above the front upper heat exchanger and the rear heat exchanger, the surface facing the air purifying filter being shaped along the rounded portion ;
Equipped with a,
An air conditioner in which the front upper heat exchanger is arranged substantially vertically . 前記背面熱交換器の水平線に対する設置角度を３５°以上としたことを特徴とする請求項１記載の空気調和機。 The air conditioner of claim 1 Symbol mounting, characterized in that the installation angle of 35 ° or more relative to the horizontal of the rear heat exchanger.
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JPH10288352A (en) * 1997-04-15 1998-10-27 Corona Corp Ion generating device
JP2000018699A (en) * 1998-06-26 2000-01-18 Matsushita Electric Ind Co Ltd Air conditioner
JP2000329364A (en) * 1999-05-19 2000-11-30 Mitsubishi Heavy Ind Ltd Wall-hanging type indoor unit for air conditioner
JP2002061878A (en) * 2000-08-11 2002-02-28 Fujitsu General Ltd Air conditioner
JP2002061916A (en) * 2000-08-11 2002-02-28 Fujitsu General Ltd Air conditioner
JP2005214529A (en) * 2004-01-30 2005-08-11 Daikin Ind Ltd Air conditioner

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Publication number Priority date Publication date Assignee Title
JPS59145624U (en) * 1983-03-18 1984-09-28 株式会社富士通ゼネラル air conditioner
JPH10288352A (en) * 1997-04-15 1998-10-27 Corona Corp Ion generating device
JP2000018699A (en) * 1998-06-26 2000-01-18 Matsushita Electric Ind Co Ltd Air conditioner
JP2000329364A (en) * 1999-05-19 2000-11-30 Mitsubishi Heavy Ind Ltd Wall-hanging type indoor unit for air conditioner
JP2002061878A (en) * 2000-08-11 2002-02-28 Fujitsu General Ltd Air conditioner
JP2002061916A (en) * 2000-08-11 2002-02-28 Fujitsu General Ltd Air conditioner
JP2005214529A (en) * 2004-01-30 2005-08-11 Daikin Ind Ltd Air conditioner

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