JP3985844B2 - Air conditioner - Google Patents

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JP3985844B2
JP3985844B2 JP2006227534A JP2006227534A JP3985844B2 JP 3985844 B2 JP3985844 B2 JP 3985844B2 JP 2006227534 A JP2006227534 A JP 2006227534A JP 2006227534 A JP2006227534 A JP 2006227534A JP 3985844 B2 JP3985844 B2 JP 3985844B2
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air
heat exchanger
blower
drain pan
air conditioner
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JP2006313067A (en
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英知 中川
雅夫 永野
功 舟山
利彰 吉川
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Mitsubishi Electric Corp
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  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Description

この発明は、熱交換器が冷却した空気の結露水を処理する空気調和機に関するものである。   The present invention relates to an air conditioner that processes condensed water of air cooled by a heat exchanger.

従来の空気調和機の概略構成の断面を図７に示す。この図の如く、従来の空気調和機においては、空気調和機本体１０内に、前面熱交換器２と背面熱交換器３が送風機１を囲むように設けられ、かつ、この空気調和機本体１０の前面及び上面に設けられた前面吸込口１０ａ及び上面吸込口１０bから吸込んだ室内空気を前述の熱交換器２、３及び送風機１を順次通過させて、本体下面に設けられた下面吹出口１０cから吹出すように風路４が設けられている（例えば、特許文献１参照。）。   FIG. 7 shows a cross section of a schematic configuration of a conventional air conditioner. As shown in this figure, in a conventional air conditioner, a front heat exchanger 2 and a rear heat exchanger 3 are provided in an air conditioner body 10 so as to surround the blower 1, and the air conditioner body 10 The indoor air sucked from the front suction port 10a and the upper suction port 10b provided on the front surface and the upper surface is sequentially passed through the heat exchangers 2 and 3 and the blower 1, and the lower air outlet 10c provided on the lower surface of the main body. The air path 4 is provided so that it may blow out from (for example, refer patent document 1).

また更に、背面熱交換器３から滴下した結露水を回収するための背面ドレンパン１１が背面熱交換器３の下部に設けられ、しかも、この背面ドレンパン１１の前面側には、背面熱交換器３を通過した空気がスムースに流れ、送風機背面風路面の巻き始め部分で渦流が発生しないように、送風機背面風路面４ｂと背面熱交換器３の間に沿って渦流が発生しないように上方へ延出するように形成された渦流安定化部材２０が設けられている。   Furthermore, a back surface drain pan 11 for recovering the condensed water dripped from the back surface heat exchanger 3 is provided at the lower part of the back surface heat exchanger 3, and the back surface heat exchanger 3 The air that has passed through the air flows smoothly and extends upward so that no vortex flow is generated between the blower rear air passage surface 4b and the rear heat exchanger 3 so that no vortex flow is generated at the winding start portion of the blower rear air passage surface. A vortex stabilizing member 20 is provided so as to exit.

従って、このように渦流安定化部材２０が上方へ延出したものにおいては、背面熱交換器３を通過した空気が下面吹出口１０cへスムースに流れ、送風機背面風路面の巻き始め部４ｂの渦流が小さくなり、騒音は低下するものの、背面熱交換器３を通過した空気が下面吹出口１０cへ余りにもスムースに流れるために、前面熱交換器２を通過した空気と混合しなくなるため、例えば、前面熱交換器と背面熱換器と間に温度差が生じたり、或いは、各熱交換器内の冷媒流れによる温度分布差が生じたりすると、送風機の回転方向に対して温度差が生じ、結果的に送風機に着露し、強いては水滴が下面吹出口１０cから飛び出したりする。   Therefore, in the case where the vortex stabilizing member 20 extends upward in this way, the air that has passed through the rear heat exchanger 3 smoothly flows to the lower surface outlet 10c, and the vortex flow in the winding start portion 4b of the blower rear air passage surface. However, since the air that has passed through the rear heat exchanger 3 flows too smoothly to the lower surface outlet 10c, it does not mix with the air that has passed through the front heat exchanger 2. If there is a temperature difference between the front heat exchanger and the rear heat exchanger, or if there is a temperature distribution difference due to the refrigerant flow in each heat exchanger, there will be a temperature difference with respect to the rotation direction of the blower. As a result, the water blows out from the lower surface outlet 10c.

また、従来の他の先行技術例としては図８に示すようなものがある。
しかし、このようなもの、即ち、ドレンパン１１を単純に伸ばしたものでは、背面熱交換器３から滴下する結露水は回収できるものの、渦流が生じて音が大きくなったり、また、各熱交換器内の冷媒流れによって温度分布差が生じたり、或いは、前面熱交換器２と背面熱換器３との間に温度差が生じたりした場合は、その温度差により送風機１に着露し、強いては水滴が下面吹出口１０cから飛び出したりする。 Another conventional prior art example is shown in FIG.
However, in such a case, that is, the drain pan 11 simply extended, the condensed water dripped from the back heat exchanger 3 can be recovered, but the vortex is generated and the sound becomes louder. If there is a temperature distribution difference due to the refrigerant flow in the inside or if a temperature difference occurs between the front heat exchanger 2 and the rear heat exchanger 3, the temperature difference will cause dew condensation on the blower 1. The water droplets jump out from the lower surface outlet 10c.

また、背面熱換器内の冷媒流れによって、背面熱換器３の上部が充分冷却され、除湿水で濡れた状態となり、下部が乾いた状態になると、上部から流れ落ちた除湿水（ドレン水）は表面張力の関係から余り下部へは流れず、風の流れに沿って直接背面熱換器３の前面側へ流れるようになるので、強いては送風機１に落下し、その結果、水滴が吹出口１０cから吹出され、床を濡らすこととる。   Moreover, when the upper part of the rear heat exchanger 3 is sufficiently cooled by the refrigerant flow in the rear heat exchanger and becomes wet with the dehumidified water, and when the lower part is dried, the dehumidified water that has flowed down from the upper part (drain water). Will flow to the front side of the rear heat exchanger 3 directly along the flow of the wind because of the surface tension, so that it will fall to the blower 1 as a result, and as a result, water droplets will blow out. Takes out the floor from 10c and wets the floor.

また、このような問題を解決するために、図９の如く、背面ドレンパン１の先端を送風機１の送風路に沿って単純に伸ばし、送風路の巻き始め位置が送風機の中心線上までくるようにしても良いが、そのようにすると、風路の吸込面積が小さくなり、風路抵抗が増大するので、前面熱交換器２の通過風速が速くなり、結果的に、図１０に示すように、送風機１の翼枚数と回転数に依存した離散周波数騒音問題が起こる。   In order to solve such a problem, as shown in FIG. 9, the front end of the rear drain pan 1 is simply extended along the air passage of the blower 1 so that the winding start position of the air passage reaches the center line of the blower. However, when doing so, the suction area of the air passage is reduced and the air passage resistance is increased, so that the passing air speed of the front heat exchanger 2 is increased, and as a result, as shown in FIG. The problem of discrete frequency noise that depends on the number of blades and the rotational speed of the blower 1 occurs.

特開２００１−０９０６８９号公報（第３−４頁、第２図）JP 2001-090689 A (page 3-4, FIG. 2)

以上説明したように、従来の空気調和機では、風路内の空気に温度差が生じた時、送風機に着露したり、水滴が吹下面出口から飛び出したりするという問題点があった。   As described above, in the conventional air conditioner, there is a problem that when a temperature difference occurs in the air in the air passage, the air is dewed on the blower or water droplets are ejected from the outlet of the blower bottom surface.

また、送風機の翼枚数・回転数に依存した離散周波数騒音が発生し、音が大きくなるという問題点があった。   In addition, there is a problem in that discrete frequency noise depending on the number of blades and the number of rotations of the blower is generated and the sound becomes louder.

この発明は、上記のような問題点を解消するためになされたもので、音が静かで、水滴が吹出口から飛び出すのを防いだ経済的な空気調和機を得ることを目的にしている。   The present invention has been made in order to solve the above-described problems, and an object thereof is to obtain an economical air conditioner that has a quiet sound and prevents water droplets from jumping out from an outlet.

また、少ない構成部品で、ドレン水（結露水）を簡単に処理する経済的な空気調和機を得ることを目的にしている。   Moreover, it aims at obtaining the economical air conditioner which processes drain water (condensation water) easily with few components.

この発明に係る空気調和機は、室内ユニット内の前面側及び背面側のそれぞれに送風機の羽根車を囲むように設けられ、室内空気と冷媒とを熱交換させる前面及び背面熱交換器と、前記前面及び背面熱交換器からの空気を吹き出し口に導く送風機風路と、前記背面熱交換器の下部に設けられた背面ドレンパンと連絡された前記送風機風路を形成する背面風路の巻き始め部と、前記背面ドレンパンの前面上部から前記送風機羽根車の外郭にほぼ沿って延出するとともに、先端部が前記背面熱交換器の傾斜角度と同じ角度で上方へ延出するように設けられた風向板とを備え、前記背面熱交換器を通過した空気が前記風向板にガイドされながら前記背面風路の巻き始め部を介して前記吹出口へ流れるものである。 The air conditioner according to the present invention is provided so as to surround the impeller of the blower on each of the front side and the back side in the indoor unit, and the front and back heat exchangers for exchanging heat between the indoor air and the refrigerant, Winding part of the rear air path that forms the blower air path that communicates with the blower air path that guides air from the front and back heat exchangers to the outlet and the rear drain pan provided at the lower part of the rear heat exchanger. And a wind direction provided so as to extend substantially along the outer periphery of the blower impeller from the front upper portion of the rear drain pan and to extend upward at the same angle as the inclination angle of the rear heat exchanger. The air which passed the said back surface heat exchanger flows into the said blower outlet through the winding start part of the said back surface air path, being guided by the said wind direction board.

この発明に係る空気調和機は、室内ユニット内の前面側及び背面側のそれぞれに送風機の羽根車を囲むように設けられ、室内空気と冷媒とを熱交換させる前面及び背面熱交換器と、前記前面及び背面熱交換器からの空気を吹き出し口に導く送風機風路と、前記背面熱交換器の下部に設けられた背面ドレンパンと連絡された前記送風機風路を形成する背面風路の巻き始め部と、前記背面ドレンパンの前面上部から前記送風機羽根車の外郭にほぼ沿って延出するとともに、先端部が前記背面熱交換器の傾斜角度と同じ角度で上方へ延出するように設けられた風向板とを備え、前記背面熱交換器を通過した空気が前記風向板にガイドされながら前記背面風路の巻き始め部を介して前記吹出口へ流れるので、背面熱交換器の上部と下部の空気が互いに風向板付近で混合されほぼ均一な温度となり結露水が発生し難くなるとともに、送風機風路の吸込口の吸込風路面積が確保されて風路抵抗が大きくならずに送風機の翼枚数や回転数に依存した離散周波数騒音の発生を防ぐことができる。 The air conditioner according to the present invention is provided so as to surround the impeller of the blower on each of the front side and the back side in the indoor unit, and the front and back heat exchangers for exchanging heat between the indoor air and the refrigerant, Winding part of the rear air path that forms the blower air path that communicates with the blower air path that guides air from the front and back heat exchangers to the outlet and the rear drain pan provided at the lower part of the rear heat exchanger. And a wind direction provided so as to extend substantially along the outer periphery of the blower impeller from the front upper portion of the rear drain pan and to extend upward at the same angle as the inclination angle of the rear heat exchanger. And the air that has passed through the rear heat exchanger flows to the outlet through the winding start portion of the rear air passage while being guided by the wind direction plate. Each other Mixing in the vicinity of the facing plate, it becomes almost uniform temperature, it is difficult to generate dew condensation, and the air intake area of the air inlet of the air blower air passage is secured and the air passage resistance is not increased and the number of blades and the number of rotations of the air fan It is possible to prevent generation of discrete frequency noise depending on the frequency.

実施の形態１．
以下に、この発明の実施の形態１について図１を用いて説明する。
この図において、１は空調機本体内に設けられ、室内空気を循環する送風機、２、３はこの送風機１の前面及び背面をそれぞれ囲むように設けられ、室内空気と冷媒とを熱交換させる前面熱交換器及び背面熱交換器、４はこれら前面熱交換器２と背面熱交換器３からの室内空気を空調機本体下面の吹出口１０ｃを介して室内へ吹出す送風機風路で、この送風機風路４は前面風路面４ａと背面風路面４ｂとからなり、この背面風路面４ｂの巻き始め部４ｃは背面ドレンパン１１と連絡されている。 Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to FIG.
In this figure, 1 is a blower that is provided in the air conditioner body and circulates room air, and 2 and 3 are provided so as to surround the front and back surfaces of the blower 1, respectively, to exchange heat between room air and refrigerant. A heat exchanger and a rear heat exchanger 4 are blower air passages for blowing indoor air from the front heat exchanger 2 and the rear heat exchanger 3 into the room through the air outlet 10c on the lower surface of the air conditioner body. The air passage 4 includes a front air passage surface 4 a and a rear air passage surface 4 b, and a winding start portion 4 c of the rear air passage surface 4 b is in communication with the rear drain pan 11.

なお、前述した背面熱交換器３は、その通過空気面積と結露水の流れの関係から空調機本体の垂直方向に対してその下部が上部よりも後方ヘ傾斜するように構成されている。   In addition, the back heat exchanger 3 mentioned above is comprised so that the lower part may incline back rather than the upper part with respect to the orthogonal | vertical direction of an air conditioner main body from the relationship between the passage air area and the flow of condensed water.

また、１０は空調機本体ユニッットであり、この本体ユニッット１０はその前面に前面吸込口１０ａを、その上面に上面吸込口１０ｂを有し、かつ、その下面にユニット吹出口１０ｃを有し、これらの吸込口１０ａ、１０ｂと吹出口１０ｃは風路壁を介して連絡されており、１１はこの風路壁内に設けられた背面熱交換器３の下部に設けられ、該熱交換器の結露水を回収する背面ドレンパンであり、１２はこの背面ドレンパン１１の前面上部（背面熱交換器３の最下面３ｃ）から送風機の羽根車の外郭形状にほぼ沿って背面熱交換器３の上部先端まで延出し、該延出部が背面ドレンパン１１へ傾斜するように設けられた背面熱交換器３からの室内空気をガイドする風向板である。   Reference numeral 10 denotes an air conditioner main unit. The main unit 10 has a front suction port 10a on the front surface, an upper suction port 10b on the upper surface, and a unit outlet 10c on the lower surface. The air inlets 10a and 10b and the air outlet 10c are communicated with each other through an air passage wall, and 11 is provided at the lower part of the rear heat exchanger 3 provided in the air passage wall, and the condensation of the heat exchanger A rear drain pan that collects water, 12 is from the upper front of the rear drain pan 11 (the lowermost surface 3c of the rear heat exchanger 3) to the upper tip of the rear heat exchanger 3 substantially along the outer shape of the impeller of the blower. It is a wind direction plate that guides indoor air from the rear heat exchanger 3 that is extended and inclined so that the extended portion is inclined to the rear drain pan 11.

次に、この構成の動作について説明する。
まず、空調機本体１０の前面吸込口１０ａと上面吸込口１０ｂとからそれぞれ吸込まれた室内空気はそれぞれ前面熱交換器２と背面熱交換器３を通過し、熱交換器内の冷媒と熱交換されて送風機１によって送風機風路４を介してユニット吹出口１０ｃから吹出された後、再び前面吸込口１０ａと上面吸込口１０ｂとから吸込まれ、前述同様の動作が繰返される。 Next, the operation of this configuration will be described.
First, the indoor air sucked from the front air inlet 10a and the upper air inlet 10b of the air conditioner body 10 passes through the front heat exchanger 2 and the rear heat exchanger 3, respectively, and exchanges heat with the refrigerant in the heat exchanger. After being blown out from the unit blowout port 10c by the blower 1 through the blower air passage 4, the air is sucked in again from the front suction port 10a and the upper suction port 10b, and the same operation as described above is repeated.

なお、この時、背面熱交換器３を通過した空気の上部側空気は送風機１の吸引力によって下部を向くように流れ、背面熱交換器３を通過した下部空気は背面ドレンパン１１の前面上部１１ａに設けられた風向板１２にガイドされながら、送風機１によって背面風路面４ｂの巻き始め部４ｃを介して吹出口１０ｃから吹出される。   At this time, the upper side air of the air that has passed through the rear heat exchanger 3 flows so as to face the lower part due to the suction force of the blower 1, and the lower air that has passed through the rear heat exchanger 3 is the upper front part 11 a of the rear drain pan 11. The air blower 1 blows out from the blowout port 10c through the winding start part 4c of the back surface airway surface 4b while being guided by the wind direction plate 12 provided in the airflow direction.

言い換えれば、背面熱交換器３の冷媒バランスが崩れ、背面熱交換器３の上部が湿り、下部が乾き、互いの空気に温度差が生じたとしても、上部と下部の空気は互いに風向板１２付近で混合され、ほぼ均一な温度となるため、結露水が発生し難くなるると共に、しかも、このようにすると、背面熱交換器３からの空気の風速が上がり、前面熱交換器２からの空気と良く混ざり合うようになるため、更に結露の発生を防げるようになる。   In other words, even if the refrigerant balance of the rear heat exchanger 3 is lost, the upper portion of the rear heat exchanger 3 is moistened, the lower portion is dried, and a temperature difference occurs between the air, the upper and lower air are mutually directed to the wind direction plate 12. Since it is mixed in the vicinity and becomes a substantially uniform temperature, it becomes difficult for dew condensation water to be generated, and, in addition, the air velocity from the rear heat exchanger 3 is increased, and the air from the front heat exchanger 2 is increased. Because it mixes well with the air, it will be possible to further prevent condensation.

また、この時、背面熱換器３の上部が充分冷却され、除湿水で濡れた状態となり、下部が乾いた状態になると、上部から流れ落ちた除湿水（ドレン水）は表面張力の関係から余り下部へは流れず、風の流れに沿って直接背面熱換器３の前面側へ流れ、落下したとしても、図１に示すように、風向板１２が背面熱交換器３の空気通過出口面を受けるように、即ち、垂直方向における風向板１２の先端部１２ａと背面熱交換器３の先端部が互いにほぼ重畳するように構成し、かつ、ドレンパン１１へ傾斜するように構成しているので、結露水が発生しても、結露水は風向板１２で受けられ、ドレンパン１１へ流れるようになるため、結露水が送風機風路４の吹出口４ｅを介して本体吹出口１０ｃから室内へ吹出されなくなり、室内の床面等が結露水で濡れることも無くなる。   At this time, when the upper part of the back heat exchanger 3 is sufficiently cooled and wetted with dehumidified water, and the lower part is dried, the dehumidified water (drain water) that has flowed down from the upper part is excessive due to the surface tension. Even if it flows to the front side of the rear heat exchanger 3 along the flow of the wind and falls, it does not flow to the lower part, but the wind direction plate 12 remains on the air passage exit surface of the rear heat exchanger 3 as shown in FIG. In other words, the front end portion 12a of the wind direction plate 12 and the front end portion of the rear heat exchanger 3 in the vertical direction are configured to substantially overlap each other and are inclined to the drain pan 11. Even if condensed water is generated, the condensed water is received by the wind direction plate 12 and flows to the drain pan 11, so that the condensed water is blown into the room from the main body outlet 10 c through the outlet 4 e of the blower air passage 4. No condensation on the floor of the room Also no longer be wetted by.

また、風向板１２を送風機の羽根車の外郭形状にほぼ沿って背面熱交換器３の上部先端まで延出させ、結露水を受けるようにする時、ドレンパン前面上部１１ａから延出させるようにしたので、送風機風路４の吸込口４ｄの吸込風路面積が確保され、風路抵抗が大きくならず、しかも、送風機の外郭形状にほぼ沿って背面熱交換器３の上部先端まで延出させたので、図６に示すように、送風機１の翼枚数や回転数に依存した離散周波数騒音の発生が防げるようになる。   Further, when the wind direction plate 12 is extended to the upper end of the rear heat exchanger 3 substantially along the outer shape of the impeller of the blower so as to receive condensed water, it is extended from the drain pan front upper portion 11a. Therefore, the suction air passage area of the suction inlet 4d of the blower air passage 4 is ensured, the air passage resistance is not increased, and the air flow is extended to the upper end of the rear heat exchanger 3 substantially along the outer shape of the blower. Therefore, as shown in FIG. 6, generation of discrete frequency noise depending on the number of blades and the number of rotations of the blower 1 can be prevented.

以上の説明では、風向板１２が結露水を受けて背面ドレンパン１１へ流れるように、風向板１２の先端部１２ａと背面熱交換器３の先端部が互いに垂直方向で重畳するように説明したが、背面熱交換器３の傾向角度とその通過風速の関係によっては、必ずしも、互いに重畳させる必要がないことは言うまでもまでもない。   In the above description, the front end portion 12a of the wind direction plate 12 and the front end portion of the rear heat exchanger 3 are described so as to overlap each other in a vertical direction so that the wind direction plate 12 receives the dew condensation water and flows to the rear drain pan 11. Needless to say, the rear heat exchanger 3 does not necessarily have to be superposed on each other depending on the relationship between the tendency angle of the rear heat exchanger 3 and the passing wind speed.

実施の形態２．
この実施の形態２について図２を用いて説明する。
この実施の形態２においては、図２に示すように、風向板１２をドレンパン前面上部１１ａから延出させる時、ドレンパン１１へ傾斜するように送風機１の羽根車の外郭形状にほぼ沿ってほぼ該頂部まで延出させ、この延出させた先端部を背面熱交換器３の傾斜角度とほぼ同じ角度で背面熱交換器３の最下段３ａの放熱管又は１０ｍｍ程度まで上方へ延出させて背面熱交換器３の出口側傾斜面を覆うようにしたものである。
なお、その他の構成は実施の形態１とほぼ同じである。 Embodiment 2. FIG.
The second embodiment will be described with reference to FIG.
In the second embodiment, as shown in FIG. 2, when the wind direction plate 12 is extended from the drain pan front upper part 11a, the air direction plate 12 is substantially along the outer shape of the impeller of the blower 1 so as to be inclined to the drain pan 11. Extending to the top, the extended tip is extended at the same angle as the inclination angle of the back heat exchanger 3 to the heat radiation tube of the lowermost stage 3a of the back heat exchanger 3 or about 10 mm upward. The outlet side inclined surface of the heat exchanger 3 is covered.
Other configurations are substantially the same as those of the first embodiment.

次に、この構成の動作について説明する。
まず、このような構成にすると、背面熱交換器３を通過した上部側空気は送風機１の吸引力によって下部を向くように流れ、背面熱交換器３を通過した下部空気は背面ドレンパン１１の前面上部１１ａに設けられた風向板１２の先端部１２ａによって更に上方へガイドされるので、上部と下部の空気は更に互いに混合され、均一な温度となるため、室内の床面等が更に結露水で濡れることも無くなる。 Next, the operation of this configuration will be described.
First, with such a configuration, the upper side air that has passed through the rear heat exchanger 3 flows downward by the suction force of the blower 1, and the lower air that has passed through the rear heat exchanger 3 flows to the front of the rear drain pan 11. Since it is guided further upward by the tip 12a of the wind direction plate 12 provided in the upper part 11a, the upper and lower air are further mixed with each other and become a uniform temperature. It won't get wet.

また、この時、先端部１２ａを背面熱交換器３の傾斜角度とほぼ同じ角度で背面熱交換器３の最下段３ａの放熱管又は１０ｍｍ程度まで上方へ延出させ、しかも、背面熱交換器３の出口側傾斜面を覆うようにしたので、背面熱交換器３の放熱能力（面積）を殺すことなく、仮に、背面熱交換器３の冷媒バランスが崩れ、背面熱換器３の上部が充分冷却され、除湿水で濡れた状態となり、下部が乾いた状態になって、上部から流れ落ちた除湿水（ドレン水）は表面張力の関係から余り下部へは流れず、風の流れに沿って直接背面熱換器３の前面側へ流れ、落下したとしても、落下水は風向板１２に受けられ、背面ドレンパン１１に流れるため、室内の床面等が結露水で濡れることも無くなる。   At this time, the front end portion 12a is extended upward to the heat radiation pipe of the lowermost stage 3a of the rear heat exchanger 3 or about 10 mm at an angle substantially the same as the inclination angle of the rear heat exchanger 3, and the rear heat exchanger 3 so that the refrigerant balance of the rear heat exchanger 3 is disrupted and the upper portion of the rear heat exchanger 3 is not destroyed without killing the heat radiation capability (area) of the rear heat exchanger 3. The dehumidified water (drain water) that has been sufficiently cooled, wetted with dehumidified water, and dried at the lower part and has flowed down from the upper part does not flow to the lower part due to the surface tension. Even if the water flows directly to the front side of the rear heat exchanger 3 and falls, the falling water is received by the wind direction plate 12 and flows to the rear drain pan 11, so that the floor surface of the room is not wetted by the dew condensation water.

また、このように送風機１の吸込側風路４ｂを徐々に変化させるようにすると、空気がスムースに流れるので、渦流の発生が抑制され、また、送風機１の翼枚数や回転数に依存した離散周波数騒音の発生が更に防げるようになるため、音の静かな空調機が得られる。   Further, when the suction side air passage 4b of the blower 1 is gradually changed in this way, the air flows smoothly, so that the generation of vortex is suppressed, and the discreteness depends on the number of blades and the number of rotations of the blower 1. Since the generation of frequency noise can be further prevented, an air conditioner with quiet sound can be obtained.

実施の形態３．
この実施の形態３においては、図３に示すように、実施の形態１、２において、背面ドレンパン１１と送風機の風路４とを一体成形し、風向板１２を別部品として背面ドレンパン１１に取り付けたものである。
なお、その他の構成は実施の形態１、２とほぼ同じである。 Embodiment 3 FIG.
In the third embodiment, as shown in FIG. 3, in the first and second embodiments, the back drain pan 11 and the air passage 4 of the blower are integrally formed, and the wind direction plate 12 is attached to the back drain pan 11 as a separate component. It is a thing.
Other configurations are substantially the same as those of the first and second embodiments.

なお、このように背面ドレンパン１１と風向板１２を別体にして組立てるようにすると、背面ドレンパン１１や風向板１２を有するユニット風路の型形状がシンプルになり、また、背面熱交換器３を取り付けた後でも、風向板１２を取り付けられるようになるため、型費、材料費の低減するのみでなく、組立性も良くなり、しかも、風向板の設計自由度が向上するため、経済的で、設計自由度が向上した空気調和機が得られる。   If the rear drain pan 11 and the wind direction plate 12 are assembled separately as described above, the shape of the unit air passage having the rear drain pan 11 and the wind direction plate 12 is simplified, and the rear heat exchanger 3 is installed. Since the wind direction plate 12 can be attached after the installation, not only the mold cost and the material cost are reduced, but also the assemblability is improved, and the design freedom of the wind direction plate is improved. Thus, an air conditioner with improved design freedom can be obtained.

実施の形態４．
この実施の形態４においては、図４、５に示すように、実施の形態１から３において、本体ユニット風路壁の側面を形成し、前面ドレンパン１５と背面ドレンパン１１との間に、前面熱交換器２と背面熱交換器３を固定する固定側板部材１３の部位に一体で成形された樋状の結露水回収機構１４を設け、この設けた樋状の結露水回収機構１４を前面熱交換器２と背面熱交換器３の下部にそれぞれ設けられた前面ドレンパン１５と背面ドレンパン１１と繋がるようにして、結露水回収機構１４の結露水をドレンパンへ流すようにしたものである。なお、その他の構成は実施の形態１、２とほぼ同じである。 Embodiment 4 FIG.
In the fourth embodiment, as shown in FIGS. 4 and 5, the side surface of the main unit air passage wall is formed in the first to third embodiments, and the front surface heat is between the front drain pan 15 and the rear drain pan 11. A bowl-shaped condensed water recovery mechanism 14 formed integrally with the fixed side plate member 13 that fixes the exchanger 2 and the rear heat exchanger 3 is provided, and the provided bowl-shaped condensed water recovery mechanism 14 is subjected to front heat exchange. The dew condensation water of the dew condensation water recovery mechanism 14 is caused to flow to the drain pan so as to be connected to the front drain pan 15 and the rear drain pan 11 respectively provided in the lower part of the cooler 2 and the rear heat exchanger 3. Other configurations are substantially the same as those of the first and second embodiments.

次に、このように構成された動作について図４、５で説明する。
まず、前面熱交換器２と背面熱交換器３に冷媒が流れると、これら熱交換器２，３を固定し、支持している固定側板部材１３が冷却されるので、これに温かい空気が接触して除湿冷却されると、固定側板部材１３に結露水が発生、付着し、やがて結露水は成長して固定側板部材１３の上から下へ流れ、送風機１又はドレンパン１１、１５へ落ちようとする。 Next, the operation thus configured will be described with reference to FIGS.
First, when the refrigerant flows through the front heat exchanger 2 and the back heat exchanger 3, the fixed side plate member 13 that fixes and supports the heat exchangers 2 and 3 is cooled, so that warm air comes into contact therewith. When the dehumidifying cooling is performed, the dew condensation water is generated and attached to the fixed side plate member 13, and eventually the dew condensation water grows and flows from the top to the bottom of the fixed side plate member 13 and falls to the blower 1 or the drain pans 11 and 15. To do.

しかし、この時、前面熱交換器２と背面熱交換器を固定する固定側板部材１３の各熱交換器が固定された下部に、一体で成形された樋状の結露水回収機構１４が設けられているので、落下した結露水は結露水回収機構１４に回収されて、前面ドレンパン１５または背面ドレンパン１１へ導かれるので、送風機１へ落ちることなく、固定側板部材１３に付着した結露水は前面ドレンパン１５または背面ドレンパン１１へ落ちることとなる。   However, at this time, a bowl-shaped condensed water recovery mechanism 14 formed integrally is provided at the lower part of the fixed side plate member 13 that fixes the front heat exchanger 2 and the rear heat exchanger. Therefore, the condensed water that has fallen is collected by the condensed water collecting mechanism 14 and guided to the front drain pan 15 or the rear drain pan 11, so that the condensed water adhering to the stationary side plate member 13 does not fall to the blower 1 and the front drain pan. 15 or the rear drain pan 11.

以上説明したように、前面熱交換器２と背面熱交換器を固定する固定側板部材１３に、各熱交換器が位置する下部に、一体で成形された樋状の結露水回収機構１４を設け、結露水を前面ドレンパン１５または背面ドレンパン１１へ導くようにしたので、少ない構成部品で、固定側板部材の結露水を回収できるようになるため、結露水の飛散を防止した経済的な空気調和機が得られる。   As described above, the fixed-side plate member 13 that fixes the front heat exchanger 2 and the rear heat exchanger is provided with the bowl-shaped condensed water recovery mechanism 14 that is integrally formed at the lower portion where each heat exchanger is located. Since the condensed water is guided to the front drain pan 15 or the rear drain pan 11, it is possible to collect the condensed water on the fixed side plate member with a small number of components, so that an economical air conditioner that prevents scattering of the condensed water is prevented. Is obtained.

なお、この樋状の結露水回収機構１４を利用して、図４に示すように、前面ドレンパン１３と背面ドレンパン１１とを連通するようにして、例えば背面ドレンパン１１のドレン水が前面ドレンパン１５へ流れるようにすると、ドレン水を空調機室外へ排出する排出管が少なくなるので、経済的な空気調和機が得られる。   As shown in FIG. 4, the drain water in the back drain pan 11 is transferred to the front drain pan 15, for example, so that the front drain pan 13 and the back drain pan 11 communicate with each other using the bowl-shaped condensed water collecting mechanism 14. If it is made to flow, since there are few discharge pipes which discharge drain water outside an air conditioner room, an economical air conditioner is obtained.

また、以上の説明では、樋状の結露水回収機構１４を固定側板部材１３の内側、言い換えれば、熱交換器側に設けるようにしたが、固定側板部材１３の外側でも良い。
また、背面ドレンパン１１と前面ドレンパン１５も固定側板部材１３の内側に位置するだけのもに限るものではない。即ち、ドレンパンが外側まで延出したものでも良い。 In the above description, the bowl-shaped condensed water collecting mechanism 14 is provided on the inner side of the fixed side plate member 13, in other words, on the heat exchanger side, but may be provided on the outer side of the fixed side plate member 13.
Further, the rear drain pan 11 and the front drain pan 15 are not limited to being located inside the fixed side plate member 13. That is, the drain pan may extend to the outside.

この発明の実施の形態１における空気調和機を示す断面図である。It is sectional drawing which shows the air conditioner in Embodiment 1 of this invention. この発明の実施の形態２における空気調和機を示す断面図である。It is sectional drawing which shows the air conditioner in Embodiment 2 of this invention. この発明の実施の形態３における空気調和機を示す断面図である。It is sectional drawing which shows the air conditioner in Embodiment 3 of this invention. この発明の実施の形態４における空気調和機の結露水回収機構の概略構成図である。It is a schematic block diagram of the condensed water collection | recovery mechanism of the air conditioner in Embodiment 4 of this invention. この発明の実施の形態４における空気調和機の結露水回収機構の概略斜視図である。It is a schematic perspective view of the condensed water collection | recovery mechanism of the air conditioner in Embodiment 4 of this invention. この発明における風向板を付けた時の騒音の周波数分析結果図である。It is a frequency analysis result figure of the noise when the wind direction board in this invention is attached. 従来の空気調和機の断面図である。It is sectional drawing of the conventional air conditioner. 従来のその他の空気調和機の断面図である。It is sectional drawing of the other conventional air conditioner. 従来のその他の空気調和機の断面図である。It is sectional drawing of the other conventional air conditioner. 従来の騒音の周波数分析結果図である。It is the frequency analysis result figure of the conventional noise.

符号の説明Explanation of symbols

１ 送風機、 ２ 前面熱交換器、 ３ 背面熱交換器、 ３ａ 背面熱交換器最下段、 ４ 送風機風路、 ４ａ 送風機前面風路、 ４ｂ 送風機背面風路、 ４ｃ 巻き始め部、 １０ 空調機本体ユニット、１０ａ 前面ユニット吸込口、 １０ｂ 上面ユニット吸込口、 １０ｃ 下面ユニット吹出口、 １１ 背面ドレンパン、 １１ａ 背面ドレンパン前面、 １２ 風向板、 １２ａ 風向板先端部、 １３ 固定側板部材、 １４ 結露水回収機構、 １５ 前面ドレンパン。 DESCRIPTION OF SYMBOLS 1 Blower, 2 Front heat exchanger, 3 Back heat exchanger, 3a Bottom of rear heat exchanger, 4 Blower air path, 4a Blower front air path, 4b Blower rear air path, 4c Winding start part, 10 Air conditioner main body unit 10a Front unit inlet, 10b Upper unit inlet, 10c Lower unit outlet, 11 Back drain pan, 11a Front drain pan front, 12 Wind direction plate, 12a Front end of wind direction plate, 13 Fixed side plate member, 14 Condensation water recovery mechanism, 15 Front drain pan.

Claims (4)

室内ユニット内の前面側及び背面側のそれぞれに送風機の羽根車を囲むように設けられ、室内空気と冷媒とを熱交換させる前面及び背面熱交換器と、前記前面及び背面熱交換器からの空気を吹き出し口に導く送風機風路と、前記背面熱交換器の下部に設けられた背面ドレンパンと連絡された前記送風機風路を形成する背面風路の巻き始め部と、前記背面ドレンパンの前面上部から前記送風機羽根車の外郭にほぼ沿って延出するとともに、先端部が前記背面熱交換器の傾斜角度と同じ角度で上方へ延出するように設けられた風向板とを備え、前記背面熱交換器を通過した空気が前記風向板にガイドされながら前記背面風路の巻き始め部を介して前記吹出口へ流れることを特徴とする空気調和機。 Front and back heat exchangers that are provided so as to surround the impeller of the blower on each of the front side and the back side in the indoor unit and exchange heat between indoor air and refrigerant, and air from the front and back heat exchangers From the upper part of the front side of the rear drain pan, and the wind start part of the rear air path that forms the blower air path communicated with the rear drain pan provided at the lower part of the rear heat exchanger, A wind direction plate provided so as to extend substantially along the outer periphery of the blower impeller and to have a tip portion extending upward at the same angle as the inclination angle of the rear heat exchanger, and the rear heat exchange An air conditioner characterized in that air that has passed through a vessel flows to the outlet through the winding start portion of the rear air passage while being guided by the wind direction plate. 前記風向板の先端部が、該熱交換器の最下段放熱管まで延出することを特徴とする請求項１に記載の空気調和機。 The tip portion of the wind direction plate, an air conditioner according to claim 1, characterized in that extending to the bottom heat radiation tubes of the heat exchanger. 前記背面ドレンパンが、前記送風機の風路と一体成形されたことを特徴とする請求項１または２に記載の空気調和機。 The air conditioner according to claim 1 or 2 , wherein the back drain pan is integrally formed with an air passage of the blower. 前記風向板が、前記背面ドレンパンと別体で形成されたことを特徴とする請求項３に記載の空気調和機。 The air conditioner according to claim 3 , wherein the wind direction plate is formed separately from the back drain pan.
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CN109737509B (en) * 2019-01-07 2021-04-27 中国工程物理研究院材料研究所 Air conditioning unit with crossed air ducts

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