JP4396240B2 - Air conditioner - Google Patents

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JP4396240B2
JP4396240B2 JP2003395211A JP2003395211A JP4396240B2 JP 4396240 B2 JP4396240 B2 JP 4396240B2 JP 2003395211 A JP2003395211 A JP 2003395211A JP 2003395211 A JP2003395211 A JP 2003395211A JP 4396240 B2 JP4396240 B2 JP 4396240B2
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fins
heat exchanger
fan
side heat
fin
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JP2005156025A (en
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浩一 酒井
喜章 後藤
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Description

本発明は、空気調和機に関するもので、特に熱交換器のフィンに関するものである。   The present invention relates to an air conditioner, and particularly to a fin of a heat exchanger.

従来の空気調和機について、図９、図１０を用いて説明する。   A conventional air conditioner will be described with reference to FIGS.

空気調和機は、室外機（図示せず）と前記室外機と冷媒管を介して接続された室内機１から構成されており、図９は、前記室内機１の断面図を示すものである。   The air conditioner includes an outdoor unit (not shown) and an indoor unit 1 connected to the outdoor unit via a refrigerant pipe. FIG. 9 is a cross-sectional view of the indoor unit 1. .

図において、本体２は、前部と上部のそれぞれに空気取り入れ用の前部吸い込み口２ａと上部吸い込み口２ｂが備えられ、下方に吹き出し口３が備えられている。４ａは前部吸い込み口２ａの下流側に配された前面側熱交換器で、４ｂは本体１の背面側に配された背面側熱交換器で、前記前面側熱交換器４ａは、ファン５側に大きく湾曲して形成されている。   In the figure, the main body 2 is provided with a front suction port 2a and an upper suction port 2b for air intake at the front and upper portions, respectively, and a blowout port 3 is provided at the lower side. 4a is a front heat exchanger disposed on the downstream side of the front suction port 2a, 4b is a rear heat exchanger disposed on the back side of the main body 1, and the front heat exchanger 4a includes a fan 5 It is greatly curved to the side.

前面側熱交換器４ａ、背面側熱交換器４ｂのそれぞれは、両端の端板４ｃ間に互いに僅かの隙間を置いて配置された多数のフィン４ｄと、フィン４ｄに設けた孔４ｅに貫通される伝熱管（図示せず）から構成されている。図１０は、フィン４ｄにおける孔４ｅの配置を示すもので、同孔４ｅは均等に配置されている。   Each of the front side heat exchanger 4a and the back side heat exchanger 4b is penetrated through a large number of fins 4d arranged with a slight gap between the end plates 4c at both ends, and holes 4e provided in the fins 4d. Heat transfer tube (not shown). FIG. 10 shows the arrangement of the holes 4e in the fin 4d, and the holes 4e are evenly arranged.

上記構成により、ファン５が回転すると、前部吸い込み口２ａ、上部吸い込み口２ｂから室内の空気が流入し、前面側熱交換器４ａ、背面側熱交換器４ｂで熱交換された後、吹き出し口３から吹き出される（例えば、特許文献１参照）。
特開平９−０４２６９９号公報 With the above configuration, when the fan 5 rotates, indoor air flows in from the front suction port 2a and the upper suction port 2b, and heat exchange is performed by the front side heat exchanger 4a and the back side heat exchanger 4b. 3 (for example, refer to Patent Document 1).
Japanese Patent Laid-Open No. 9-042699

近年、空気調和機の室内機に対して薄型化の要望が大きいが、その室内機１の本体２の厚さ（奥行き寸法）は、ファン５の直径と前面側熱交換器４ａの厚み即ちフィン４ｄの幅寸法で決定される。そこで本体２の厚さを薄くするために、前面側熱交換器４ａのフィン４ｄの幅寸法を小さくすると、所定数の伝熱管がフィン４ｄに貫通できなくり、熱交換性能が悪くなるという問題があった。同じく本体２を薄くするために、ファン５の直径を小さくすると当然送風量がへり、熱交換能力が低下するという問題がある。   In recent years, there is a great demand for thinning an indoor unit of an air conditioner. However, the thickness (depth dimension) of the main body 2 of the indoor unit 1 depends on the diameter of the fan 5 and the thickness of the front heat exchanger 4a, that is, the fin. Determined by a width dimension of 4d. Therefore, if the width of the fins 4d of the front heat exchanger 4a is reduced in order to reduce the thickness of the main body 2, a predetermined number of heat transfer tubes cannot penetrate the fins 4d, resulting in poor heat exchange performance. was there. Similarly, if the diameter of the fan 5 is reduced in order to make the main body 2 thinner, there is a problem that naturally the amount of blown air is reduced and the heat exchange capability is lowered.

そこで、上記の問題を解決するため、所定数の伝熱管を貫通させるためにフィン４ｄを長くしたり、ファン５の羽根（図示せず）を長くする事も考えられるが、これでは、室内機本体が縦長、横長になり、折角の薄型化のメリットも無駄になってしまうという課題があった。   In order to solve the above problem, it is conceivable to lengthen the fins 4d or lengthen the blades (not shown) of the fan 5 in order to penetrate a predetermined number of heat transfer tubes. There was a problem that the main body became vertically long and horizontally long, and the merit of thinning the corners was wasted.

本発明は、前記従来の課題を解決するもので、空気調和機本体の従来の大きさを維持しながら、薄型の空気調和機を提供することを目的とする。   This invention solves the said conventional subject, and it aims at providing a thin air conditioner, maintaining the conventional magnitude | size of an air conditioner main body.

前記従来の課題を解決するために、本発明の空気調和機は、吸込み口と、吹き出し口と、前記吸い込み口から空気を取り入れるファンと、前記ファンの前側に配置される前面側熱交換器とを備え、前記前面側熱交換器は、所定の狭い間隔で並べられた多数枚のフィンと、前記フィンに略直角に貫通する多数の伝熱管とから構成され、前記フィンは前縁および後縁のそれぞれを、同一鈍角で交わる２本の直線部と、前記２本の直線部間を１本の曲線部で結んで形成し、前記フィンを略くの字状としたもので、さらに、前記前面側熱交換器は、前記フィンの後縁の前記ファンと対向する部分に前記ファンの外形形状に沿うような曲線部を設けて前記フィンの幅寸法を徐々に変化させると共に、前記フィンの最大幅寸法と最大縦寸法と同一寸法の長方形の一般フィンに配置される伝熱管の本数と略同数の伝熱管を前記フィンに貫通させるようにしたもので、前面側熱交換器の曲線部をファンに沿わせるように配置することにより、前面側熱交換器を曲線部に相当する分ファン側に移動できるので、本体厚さを縮小させてコンパクトに構成できると共に、伝熱管の本数を従来通り確保しているため、必要な熱交換器能力を確保することができる。
さらに、フィンの前縁および後縁のそれぞれを、同一鈍角で交わる２本の直線部と、前記２本の直線部間を１本の曲線部で結んで形成し、前記フィンを略くの字状としたもので、フィンのプレス加工の生産性が向上すると共に、前面側熱交換器を空気調和機本体に効率良く収納して、よりコンパクトにすることができる。 In order to solve the conventional problems, an air conditioner of the present invention includes a suction port, a blow-out port, a fan that takes air from the suction port, and a front-side heat exchanger that is disposed on the front side of the fan. The front-side heat exchanger includes a plurality of fins arranged at a predetermined narrow interval, and a plurality of heat transfer tubes that pass through the fins at substantially right angles, and the fins have a front edge and a rear edge. Are formed by connecting two straight portions intersecting at the same obtuse angle and the two straight portions by one curved portion, and the fins are formed in a substantially U-shape. The front-side heat exchanger is provided with a curved portion along the outer shape of the fan at a portion facing the fan at the rear edge of the fin to gradually change the width of the fin and The same length as the major dimension and the maximum vertical dimension The number of heat transfer tubes arranged in the general fin of the shape is made to penetrate the fins, and by arranging the curved portion of the front side heat exchanger along the fan, Since the front side heat exchanger can be moved to the fan side by the amount corresponding to the curved part, it can be made compact by reducing the thickness of the main body, and the number of heat transfer tubes is secured as before, so the required heat exchanger Capability can be secured.
Furthermore, each of the front edge and the rear edge of the fin is formed by connecting two straight portions intersecting at the same obtuse angle and the two straight portions by a single curved portion, and the fin is substantially shaped like a letter. As a result, the productivity of the press working of the fins can be improved, and the front side heat exchanger can be efficiently housed in the air conditioner body to make it more compact.

本発明の空気調和機は、従来の熱交換能力、送風性能を維持しながら、本体の厚みを薄くする事ができる。   The air conditioner of this invention can make the thickness of a main body thin, maintaining the conventional heat exchange capability and ventilation performance.

第１の発明は、吸込み口と、吹き出し口と、前記吸い込み口から空気を取り入れるファンと、前記ファンの前側に配置される前面側熱交換器とを備え、前記前面側熱交換器は、所定の狭い間隔で並べられた多数枚のフィンと、前記フィンに略直角に貫通する多数の伝熱管とから構成され、前記フィンは前縁および後縁のそれぞれを、同一鈍角で交わる２本の直線部と、前記２本の直線部間を１本の曲線部で結んで形成し、前記フィンを略くの字状としたもので、さらに、前記前面側熱交換器は、前記フィンの後縁の前記ファンと対向する部分に前記ファンの外形形状に沿うような曲線部を設けて前記フィンの幅寸法を徐々に変化させると共に、前記フィンの最大幅寸法と最大縦寸法と同一寸法の長方形の一般フィンに配置される伝熱管の本数と略同数の伝熱管を前記フィンに貫通させるようにしたもので、前面側熱交換器の曲線部をファンに沿わせるように配置することにより、前面側熱交換器を曲線部に相当する分ファン側に移動できるので、本体厚さを縮小させてコンパクトに構成できると共に、伝熱管の本数を従来通り確保しているため、必要な熱交換器能力を確保することができる。
さらに、フィンの前縁および後縁のそれぞれを、同一鈍角で交わる２本の直線部と、前記２本の直線部間を１本の曲線部で結んで形成し、前記フィンを略くの字状としたもので、フィンのプレス加工の生産性が向上すると共に、前面側熱交換器を空気調和機本体に効率良く収納して、よりコンパクトにすることができる。 1st invention is equipped with the suction inlet, the blower outlet, the fan which takes in air from the said suction inlet, and the front side heat exchanger arrange | positioned in the front side of the said fan, The said front side heat exchanger is predetermined. And a plurality of heat transfer tubes penetrating substantially at right angles to the fins, and the fins have two straight lines intersecting the front edge and the rear edge at the same obtuse angle, respectively. And the two straight portions are connected by a single curved portion, and the fin is formed in a substantially U shape, and the front-side heat exchanger further includes a rear edge of the fin. A curved portion that conforms to the outer shape of the fan is provided at a portion facing the fan of the fan to gradually change the width dimension of the fin, and a rectangular shape having the same dimensions as the maximum width dimension and the maximum vertical dimension of the fin. Number of heat transfer tubes placed on general fins About the same number of heat transfer tubes are penetrated through the fins, and the front side heat exchanger is made to correspond to the curved part by arranging the curved part of the front side heat exchanger along the fan. Since it can move to the side, the body thickness can be reduced and a compact configuration can be achieved, and since the number of heat transfer tubes is ensured as before, the necessary heat exchanger capacity can be ensured.
Furthermore, each of the front edge and the rear edge of the fin is formed by connecting two straight portions intersecting at the same obtuse angle and the two straight portions by a single curved portion, and the fin is substantially shaped like a letter. As a result, the productivity of the press working of the fins can be improved, and the front side heat exchanger can be efficiently housed in the air conditioner body to make it more compact.

第２の発明は、特に、第１の発明のフィンの後縁の少なくとも一部の形状をファンの外径と略同心円の形状にするもので、空気調和機本体の厚さを薄くする事ができるだけでなく、前面側熱交換器で熱交換された空気の流れが均一になってファンに流入するようになり、ファン効率が向上するとともに、円滑な空気の流れ場を形成して低騒音化が図れる。   In the second invention, in particular, the shape of at least a part of the trailing edge of the fin of the first invention is made substantially concentric with the outer diameter of the fan, and the thickness of the air conditioner main body can be reduced. Not only can the air flow exchanged by the heat exchanger on the front side be uniform, but it can flow into the fan, improving fan efficiency and creating a smooth air flow field to reduce noise. Can be planned.

第３の発明は、特に、第１又は第２のいずれか１つの発明の空気調和機本体の背面側に、多数枚のフィンと、前記フィンに略直角に貫通する多数の伝熱管とから構成された背面側熱交換器を配置し、前面側熱交換器と前記背面側熱交換器とでファンを囲むようにしたもので、両熱交換器で均一な風速分布が形成され風量性能が向上し、さらに低騒音化を図ることができる。 The third aspect of the invention is particularly composed of a large number of fins and a large number of heat transfer tubes penetrating substantially at right angles to the fins on the back side of the air conditioner body of the first or second aspect of the present invention. The rear side heat exchanger is arranged so that the fan is surrounded by the front side heat exchanger and the rear side heat exchanger, and a uniform wind speed distribution is formed in both heat exchangers and the air volume performance is improved. In addition, noise can be further reduced.

第４の発明は、吸込み口と、吹き出し口と、前記吸い込み口から空気を取り入れるファンと、前記ファンの前側に配置される、所定の狭い間隔で並べられた多数枚のフィンと、前記フィンに略直角に貫通する多数の伝熱管とから構成された前面側熱交換器とを備え、前記前面側熱交換器の上方に、多数枚のフィンと、前記フィンに略直角に貫通する多数の伝熱管とから構成された第２の前面側熱交換器を配置すると共に、空気調和機本体の背面側に、多数枚のフィンと、前記フィンに略直角に貫通する多数の伝熱管とから構成された背面側熱交換器を配置して上記３個の熱交換器でファンを囲むようにし、前記第２の前面側熱交換器と前記背面側熱交換器とはそれぞれのフィンの風上側の前縁および風下側の後縁のそれぞれが９０度以下の角度で交差するようにして一体に形成し、前記前面側熱交換器は、フィンの後縁の前記ファンと対向する部分に前記ファンの外形形状に沿うような曲線部を設けて前記フィンの幅寸法を徐々に変化させると共に、前記フィンの最大幅寸法と最大縦寸法と同一寸法の長方形の一般フィンに貫通される伝熱管の本数と略同数の伝熱管を前記フィンに貫通させるようにしたもので、３個の熱交換器でファンを囲むようにすることにより各熱交換器とファンとの間がより均等になるので、より均一な風速分布が形成され、風量性能がより向上すると共に、一層の低騒音化を図ることができる。また、第２の前面側熱交換器と背面側熱交換器とを９０度以下の角度で交差するようにすることにより、空気調和機本体の厚みが増えるのを抑制することができ、さらに、第２の前面側熱交換器と背面側熱交換器のそれぞれのフィンを一体に形成することにより、両方のフィンが一枚のフィンとして連続プレス加工されるので、プレス加工が半減できると共に、第２の前面側熱交換器と背面側熱交換器の完成後の折り曲げ工程あるいはフィン倒しの工程などが不要となり、さらに、分離された両熱交換器を繋ぎ合わせるためのシール材なども不要となり、組み立ての生産性が向上し、安価な空気調和機を提供することができる。また、前面側熱交換器のフィンの後縁の曲線部をファンに沿わせるように配置することにより、前面側熱交換器を曲線部に相当する分ファン側に移動できるので、本体厚さを縮小させてコンパクトに構成できると共に、伝熱管の本数を従来通り確保しているため、必要な熱交
換器能力を確保することができる。 A fourth aspect of the present invention relates to a suction port, a blow-out port, a fan that takes air from the suction port, a plurality of fins arranged on the front side of the fan and arranged at a predetermined narrow interval, and the fins and a is a front-side heat exchanger consists substantially a large number of heat transfer tubes penetrating perpendicularly, on sides of the front-side heat exchanger, a large number of fins, a number of penetrating substantially perpendicularly to the fin A second front side heat exchanger composed of a heat transfer tube is disposed , and a plurality of fins and a large number of heat transfer tubes penetrating substantially at right angles to the fins on the back side of the air conditioner body The rear side heat exchanger is arranged so that the three heat exchangers surround the fan, and the second front side heat exchanger and the rear side heat exchanger are arranged on the windward side of the respective fins. Each of the leading edge and the trailing edge of the leeward side is 90 degrees or less The front-side heat exchanger is provided with a curved portion along the outer shape of the fan at a portion facing the fan at the rear edge of the fin. The number of heat transfer tubes that are substantially the same as the number of heat transfer tubes that are penetrated by the rectangular general fins having the same dimensions as the maximum width dimension and the maximum vertical dimension of the fins is made to penetrate the fins. By surrounding the fan with three heat exchangers, the space between each heat exchanger and the fan becomes more uniform, so that a more uniform wind speed distribution is formed, the air flow performance is further improved, and further The noise can be reduced. Moreover, by making the second front-side heat exchanger and the rear-side heat exchanger intersect at an angle of 90 degrees or less, it is possible to suppress an increase in the thickness of the air conditioner body, By integrally forming the fins of the second front side heat exchanger and the rear side heat exchanger, both the fins are continuously pressed as a single fin. No need for the folding process or fin folding process after the completion of the front side heat exchanger and back side heat exchanger of No. 2, and the sealing material for joining the separated heat exchangers is no longer necessary. Assembling productivity is improved and an inexpensive air conditioner can be provided. Also, by arranging the curved part of the rear edge of the fin of the front side heat exchanger along the fan, the front side heat exchanger can be moved to the fan side by the amount corresponding to the curved part. It can be reduced to a compact configuration and the number of heat transfer tubes is secured as before, so the necessary heat exchange
The capacity of the converter can be secured.

第５の発明は、特に、第４の発明の前面側熱交換器のフィンの後縁の少なくとも一部の形状をファンの外径と略同心円の形状にするもので、空気調和機本体の厚さを薄くする事ができるだけでなく、前面側熱交換器で熱交換された空気の流れが均一になってファンに流入するようになり、ファン効率が向上するとともに、円滑な空気の流れ場を形成して低騒音化を図ることができる。 A fifth invention is, in particular, intended to the shape of substantially concentric to the outer diameter of the fan at least part of the shape of the trailing edge of the fins of the front side heat exchanger of the fourth invention, the thickness of the air conditioner body Not only can the thickness be reduced, but the air flow exchanged by the front heat exchanger becomes uniform and flows into the fan, improving fan efficiency and providing a smooth air flow field. It can be formed to reduce noise .

第６の発明は、特に、第４又は第５の発明の交差させた両フィンの前縁の最上部に平面部を形成するもので、両フィンから構成された背面側熱交換器と一方の前面側熱交換器を空気調機本体に収納する際、フィンの最上部に突出部が無く平坦になっているので、送風性能及び熱交換器能力を減少させることなく、空気調和機本体の高さを減少させることができる。 In the sixth aspect of the invention, in particular, a flat portion is formed at the uppermost part of the front edges of the intersecting fins of the fourth or fifth aspect of the invention. When storing the front side heat exchanger in the air conditioner body, the fins are flat and have no protrusions on the top, so the air conditioner body can be operated without reducing the blowing performance and heat exchanger capacity. Can be reduced.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が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. Note that the present invention is not limited to the embodiments.

（参考例１）
図１は、参考例１における空気調和機の室内機の断面図である。なお、上記従来例と同一部分については同一符号を付してその説明を省略する。 ( Reference Example 1)
FIG. 1 is a cross-sectional view of an indoor unit of an air conditioner in Reference Example 1 . The same parts as those in the conventional example are given the same reference numerals and the description thereof is omitted.

図１において、室内機１の本体２には、その前部、上部にそれぞれ前部吸い込み口２ａと、上部吸い込み口２ｂが設けられている。６は、前記前部吸い込み口２ａ、上部吸い込み口２ｂから流入する空気中に含まれる塵埃が本体２の内部に浸入するのを防ぐためのフイルターである。   In FIG. 1, the main body 2 of the indoor unit 1 is provided with a front suction port 2a and an upper suction port 2b at the front and upper portions, respectively. Reference numeral 6 denotes a filter for preventing dust contained in the air flowing from the front suction port 2a and the upper suction port 2b from entering the inside of the main body 2.

ファン５とフイルター６との間に設けられた熱交換器４は、ファン５の前側に位置した前面側熱交換器４ａと、背面側に位置する背面側熱交換器４ｂと、前部熱交換器４ａの上部に位置するとともに、背面側熱交換器４ｂの前側に配置した第２前部熱交換器４ｃとの３つに分割されている。図２は、 前面側熱交換器４ａのフィン４ｄをプレス加工した直後の平面図である。   The heat exchanger 4 provided between the fan 5 and the filter 6 includes a front side heat exchanger 4a located on the front side of the fan 5, a back side heat exchanger 4b located on the back side, and a front heat exchange. It is divided into three with the 2nd front part heat exchanger 4c arrange | positioned in the upper part of the apparatus 4a, and arrange | positioned in the front side of the back side heat exchanger 4b. FIG. 2 is a plan view immediately after pressing the fins 4d of the front-side heat exchanger 4a.

図２において、フィン４ｄの形状は、前縁となる直線部Ｌ１と、後縁の両側に位置する直線部Ｌ２と、両直線部Ｌ２に連続すると共に、ファン５に対向する部分で前側に窪んだ曲線部Ｌ３から形成され、本体２に組み込むときは、曲線部Ｌ３がファン５の外形に沿うように配置する。   In FIG. 2, the shape of the fin 4 d is continuous with the straight line portion L <b> 1 serving as the front edge, the straight line portion L <b> 2 located on both sides of the rear edge, and both straight line portions L <b> 2, and recessed toward the front side at the portion facing the fan 5. The curved portion L3 is formed so as to be aligned with the outer shape of the fan 5 when incorporated in the main body 2.

そして、従来の後縁に曲線部Ｌ３が無い長方形（後縁が直線のもの）の一般のフィンに等間隔で挿入されうる数と同数の伝熱管が貫通できるように、曲線部Ｌ３を有するフィン４ｄに孔４ｅが設けられている。   And the fin which has the curve part L3 so that the heat transfer tube of the same number as the number which can be inserted in the regular fin of the rectangle (the back edge is a straight line) without the curve part L3 in the conventional rear edge can penetrate. A hole 4e is provided in 4d.

以上の構成により、曲線部Ｌ３により窪んだ分だけ、フィン４ｄを、即ち前面側熱交換器４ａを、ファン５側に移動して配置できるので、その分本体２の厚さを縮小することができる。また、フィン４ｄに曲線部Ｌ３を設けたのもかかわらず伝熱管の本数は、従来のものと同じ数を確保しているため、従来の熱交換器能力を確保することができる。   With the above configuration, the fin 4d, that is, the front-side heat exchanger 4a can be moved to the fan 5 side by the amount recessed by the curved portion L3, so that the thickness of the main body 2 can be reduced accordingly. it can. Moreover, since the number of heat exchanger tubes is ensured the same number as the conventional thing irrespective of providing the curved part L3 in the fin 4d, the conventional heat exchanger capability can be ensured.

また、図１に示すように、フィン４ｄの後縁の曲線部Ｌ３の形状をファン５の外径と同心円の形にすれば、前面側熱交換器４ａからの空気の流れが均一になってファン５に流入するようになり、ファン効率が向上するとともに、円滑な流れ場を形成して低騒音化が図れる。   Moreover, as shown in FIG. 1, if the shape of the curved portion L3 at the trailing edge of the fin 4d is concentric with the outer diameter of the fan 5, the air flow from the front heat exchanger 4a becomes uniform. The fan 5 flows into the fan 5 and the fan efficiency is improved, and a smooth flow field is formed to reduce noise.

（実施の形態１）
図３は、本発明の第１の実施の形態における空気調和機の室内機の断面図で、図４は、同室内機の熱交換器のフィンのプレス加工時の平面図で、図５は、同フィンを４枚プレスの送り方向に並べたイメージ図である。なお、上記参考例１と同一部分については同一符号を付してその説明を省略する。 (Embodiment 1 )
3 is a cross-sectional view of the indoor unit of the air conditioner according to the first embodiment of the present invention, FIG. 4 is a plan view of the fin of the heat exchanger of the indoor unit at the time of press working, and FIG. FIG. 3 is an image diagram in which the fins are arranged in the feeding direction of a four-sheet press. The same parts as those in the reference example 1 are denoted by the same reference numerals and the description thereof is omitted.

本実施の形態では、熱交換器として、前面側熱交換器４ａと背面側熱交換器４ｂの２つを設け、図４に示すように、前面側熱交換器４ａ用のフィン４ｄの上端と背面側熱交換器４ｂ用のフィン４ｄの下端が繋がった１枚のフィンとして連続プレス加工するものである。   In the present embodiment, two heat exchangers, a front side heat exchanger 4a and a back side heat exchanger 4b, are provided, and as shown in FIG. 4, the upper ends of the fins 4d for the front side heat exchanger 4a The press is continuously performed as a single fin in which the lower ends of the fins 4d for the back side heat exchanger 4b are connected.

前面側熱交換器４ａのフィン４ｄの風上前縁および風下後縁はそれぞれが、同じ鈍角をなす２本の直線部Ｌ４とＬ５、Ｌ４ａとＬ５ａ及び２本の直線部Ｌ４とＬ５、Ｌ４ａとＬ５ａに接する１本の曲線部Ｌ６、Ｌ６ａで結んで略くの字状に形成されている。曲線部Ｌ６、Ｌ６ａは楕円曲線、双曲線、スプラインなどがある。   The windward leading edge and the leeward trailing edge of the fin 4d of the front side heat exchanger 4a have two straight portions L4 and L5, L4a and L5a, and two straight portions L4 and L5, L4a, each having the same obtuse angle. It is formed in a substantially square shape by connecting with one curved portion L6, L6a in contact with L5a. The curved portions L6 and L6a include an elliptic curve, a hyperbola, a spline, and the like.

さらに前面側熱交換器４ａのフィン４ｄの後縁のファン５と対抗する部分には、参考例１と同様の窪んだ曲線部Ｌ３が設けられている。 Further, a concave curved portion L3 similar to that of the reference example 1 is provided at a portion facing the fan 5 at the rear edge of the fin 4d of the front side heat exchanger 4a.

図５は、前面側熱交換器４ａと背面側熱交換器４ｂ用の両フィン４ｄが繋がって１枚のフィンとし、それを４枚プレスの送り方向に並べたイメージ図で、図にも示されるように、材料の無駄が少ないプレス加工ができるので、安価に形成する事ができるものである。   FIG. 5 is an image diagram in which the fins 4d for the front-side heat exchanger 4a and the rear-side heat exchanger 4b are connected to form one fin and arranged in the feeding direction of the four-sheet press. As described above, since press working with less waste of material can be performed, it can be formed at low cost.

前面側熱交換器４ａと背面側熱交換器４ｂの組み立ては、以下のようにして行う。   The assembly of the front side heat exchanger 4a and the back side heat exchanger 4b is performed as follows.

まず、図４に示されるような形状（前面側熱交換器４ａ用のフィン４ｄと背面側熱交換器４ｂ用のフィン４ｄが繋がった状態）の複数のフィンに伝熱管を貫通させ、各伝熱管の端部を溶接して前面側熱交換器４ａと背面側熱交換器４ｂを完成させる。次に前面側熱交換器４ａと背面側熱交換器４ｂとを図３に示されるような角度まで折り曲げて、本体２に組み込むものである。   First, a heat transfer tube is passed through a plurality of fins having a shape as shown in FIG. 4 (a state in which the fins 4d for the front side heat exchanger 4a and the fins 4d for the back side heat exchanger 4b are connected). The front side heat exchanger 4a and the back side heat exchanger 4b are completed by welding the ends of the heat pipes. Next, the front side heat exchanger 4a and the back side heat exchanger 4b are bent to an angle as shown in FIG.

以上のように、前面側熱交換器４ａと背面側熱交換器４ｂ用の両フィン４ｄを繋がった１枚のフィンとしプレス加工することにより、フィン４ｄのプレス加工の生産性が向上すると共に、空気調和機の本体に効率的に収納できる前面側熱交換器となりコンパクト化が可能となる。   As described above, by pressing the fins 4d as a single fin connecting the fins 4d for the front side heat exchanger 4a and the back side heat exchanger 4b, the productivity of pressing the fins 4d is improved. It becomes a front-side heat exchanger that can be efficiently stored in the main body of the air conditioner, and can be made compact.

（実施の形態２）
図６は、本発明の第２の実施の形態における空気調和機の室内機の断面図で、図７は同室内機の熱交換器の他のフィンの例を示す平面図、図８は、同フィンを連続プレス加工してできる数枚のフィンをプレスの送り方向（矢印）に連続して並べたイメージ図である。なお、上記実施の形態と同一部分については同一符号を付してその説明を省略する。 (Embodiment 2 )
FIG. 6 is a cross-sectional view of an indoor unit of an air conditioner according to a second embodiment of the present invention, FIG. 7 is a plan view showing an example of another fin of the heat exchanger of the indoor unit, and FIG. It is an image figure which arranged several fins formed by carrying out the continuous press processing of the fin continuously in the feed direction (arrow) of a press. The same parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

本実施の形態は、図６に示すように、ファン５の前側に独立した前面側熱交換器４ａを配し、第２の前面側熱交換器４ｃと背面側熱交換器４ｂを一体に形成し、それをファン５の上部に配したものである。、
第２の前面側熱交換器４ｃと背面側熱交換器４ｂの一体化は、第２の前面側熱交換器４ｃ用のフィン４ｄと、背面側熱交換器４ｂ用のフィン４ｄを１枚のフィンとしてかつ略逆Ｖ字状にプレス加工することにより行っている。なお、内側の角度は略９０°以下としている。 In the present embodiment, as shown in FIG. 6, an independent front side heat exchanger 4a is arranged on the front side of the fan 5, and the second front side heat exchanger 4c and the back side heat exchanger 4b are integrally formed. It is arranged on the upper part of the fan 5. ,
The integration of the second front-side heat exchanger 4c and the rear-side heat exchanger 4b is achieved by combining the fins 4d for the second front-side heat exchanger 4c and the fins 4d for the rear-side heat exchanger 4b. It is performed by pressing as a fin and in a substantially inverted V shape. The inner angle is approximately 90 ° or less.

このようにすることにより、実施の形態１で行なったような前面側熱交換器４ａと背面側熱交換器４ｂの折り曲げの工程あるいはフィン倒しの工程などが不要となり、さらには、分離された第２の前面側熱交換器４ｃと背面熱交換器４ｂを繋ぎ合わせるためのシール材も不要となり、生産性が大幅に向上する。 In this way, like process of killing step or the fins of the front side heat exchanger 4a as done in the first embodiment the rear-side heat exchanger 4 b bending is not required, further separated A sealing material for connecting the second front-side heat exchanger 4c and the back-side heat exchanger 4b becomes unnecessary, and the productivity is greatly improved.

以上の構成により、ファン５を囲むように前面側熱交換器４ａと、一体化した第２の前面側熱交換器２ｃと背面側熱交換器４ｂとが配置されているので、均一な風速分布が形成され風量性能が向上して、さらには低騒音化にも繋がる。   With the above configuration, the front-side heat exchanger 4a and the integrated second front-side heat exchanger 2c and back-side heat exchanger 4b are disposed so as to surround the fan 5, so that uniform wind speed distribution is achieved. Is formed and the air flow performance is improved, and further noise reduction is achieved.

また、図６に示されるように、両方のフィン４ｄの最上部に水平部４ｆを形成して、突出部を設けないようにすれば、送風性能及び熱交換器能力を減少させることなく、本体２の高さを低くできる。   Further, as shown in FIG. 6, if the horizontal portion 4f is formed at the uppermost part of both fins 4d and the protrusion is not provided, the main body can be obtained without reducing the blowing performance and the heat exchanger capacity. The height of 2 can be lowered.

図７は、前面側熱交換器４ｃ用と背面側熱交換器４ｂ用に一体に打ち抜いたフィン４ｄの他の例を示すもので、最上部に円弧部４ｇを形成したものである。上記の水平部４ｆを設けたものとは、プレス加工時の材料の歩留まりは変わらず、 むしろ前面側熱交換器４ｃ用のフィンの部分と背面側熱交換器４ｂ用フィンの部分との繋がり部が、水平部４ｆを設けたものに較べ長くなるのでその分強度が高まるので、長期に渡って全体形状を安定して維持する事ができるものである。   FIG. 7 shows another example of the fin 4d punched integrally for the front-side heat exchanger 4c and the rear-side heat exchanger 4b, in which an arc portion 4g is formed at the uppermost part. The material provided with the horizontal portion 4f does not change the material yield at the time of pressing. Rather, the connecting portion between the fin portion for the front-side heat exchanger 4c and the fin portion for the rear-side heat exchanger 4b However, since it is longer than that provided with the horizontal portion 4f, the strength is increased accordingly, so that the entire shape can be stably maintained over a long period of time.

以上のように、本発明にかかる空気調和機は、従来の熱交換能力、送風性能を維持しながら、本体の厚みを薄くする事ができるので、各種空調機器、冷房・冷凍機器に適用できるものである。   As described above, since the air conditioner according to the present invention can reduce the thickness of the main body while maintaining the conventional heat exchange capacity and air blowing performance, it can be applied to various air-conditioning equipment and cooling / refrigeration equipment. It is.

参考例１における空気調和機の室内機の断面図Sectional drawing of the indoor unit of the air conditioner in Reference Example 1 同室内機の前面側熱交換器のフィンの平面図Top view of fins of front side heat exchanger of the indoor unit 本発明の実施の形態１における空気調和機の室内機の断面図Sectional drawing of the indoor unit of the air conditioner in Embodiment 1 of this invention 同室内機のフィンのプレス加工直後の平面図Plan view immediately after press processing of fins of the indoor unit 同フィンを４枚プレスの送り方向に連続して並べたイメージ図An image of the fins arranged continuously in the feed direction of a four-sheet press 本発明の実施の形態２における空気調和機の室内機の断面図Sectional drawing of the indoor unit of the air conditioner in Embodiment 2 of this invention 他のフィンの例を示す平面図Plan view showing examples of other fins 同フィンを４枚、プレスの送り方向に連続して並べたイメージ図An image of four fins arranged in a row in the press feed direction 従来の空気調和機の断面図Cross section of a conventional air conditioner 同空気調和機のフィンの平面図Top view of fins of the air conditioner

符号の説明Explanation of symbols

１ 室内機
２ 本体
４ 熱交換器
４ａ 前面側熱交換器
４ｂ 背面側熱交換器
４ｃ 第２の前面側熱交換器
４ｄ フィン
５ ファン DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Main body 4 Heat exchanger 4a Front side heat exchanger 4b Back side heat exchanger 4c 2nd front side heat exchanger 4d Fin 5 Fan

Claims (6)

吸込み口と、吹き出し口と、前記吸い込み口から空気を取り入れるファンと、前記ファンの前側に配置される前面側熱交換器とを備え、前記前面側熱交換器は、所定の狭い間隔で並べられた多数枚のフィンと、前記フィンに略直角に貫通する多数の伝熱管とから構成され、前記フィンは前縁および後縁のそれぞれを、同一鈍角で交わる２本の直線部と、前記２本の直線部間を１本の曲線部で結んで形成し、前記フィンを略くの字状としたもので、さらに、前記前面側熱交換器は、前記フィンの後縁の前記ファンと対向する部分に前記ファンの外形形状に沿うような曲線部を設けて前記フィンの幅寸法を徐々に変化させると共に、前記フィンの最大幅寸法と最大縦寸法と同一寸法の長方形の一般フィンに貫通される伝熱管の本数と略同数の伝熱管を前記フィンに貫通させるようにしたことを特徴とする空気調和機。 A suction port, a blow-out port, a fan for taking in air from the suction port, and a front-side heat exchanger disposed on the front side of the fan, wherein the front-side heat exchangers are arranged at predetermined narrow intervals. A plurality of fins and a plurality of heat transfer tubes penetrating the fins substantially at right angles, the fins having two straight portions intersecting the front edge and the rear edge at the same obtuse angle, and the two The straight portions of the fins are connected by a single curved portion, and the fins are formed in a substantially square shape. Further, the front-side heat exchanger faces the fan at the rear edge of the fins. A curved part that follows the outer shape of the fan is provided in the part to gradually change the width dimension of the fin, and is penetrated by a rectangular general fin having the same dimensions as the maximum width dimension and the maximum vertical dimension of the fin. Heat transfer of approximately the same number as the number of heat transfer tubes An air conditioner is characterized in that so as to penetrate the fin. フィンの後縁の少なくとも一部の形状をファンの外径と略同心円の形状にすることを特徴とする請求項１記載の空気調和機。 The air conditioner according to claim 1, wherein at least a part of the rear edge of the fin has a shape substantially concentric with the outer diameter of the fan. 空気調和機本体の背面側に、多数枚のフィンと、前記フィンに略直角に貫通する多数の伝熱管とから構成された背面側熱交換器を配置し、前面側熱交換器と前記背面側熱交換器とでファンを囲むようにしたことを特徴とする請求項１又は２記載の空気調和機。 On the back side of the air conditioner main body, a back side heat exchanger composed of a large number of fins and a large number of heat transfer tubes penetrating the fins at a substantially right angle is arranged, the front side heat exchanger and the back side The air conditioner according to claim 1 or 2 , wherein the fan is surrounded by a heat exchanger. 吸込み口と、吹き出し口と、前記吸い込み口から空気を取り入れるファンと、前記ファンの前側に配置される、所定の狭い間隔で並べられた多数枚のフィンと、前記フィンに略直角に貫通する多数の伝熱管とから構成された前面側熱交換器とを備え、前記前面側熱交換器の上方に、多数枚のフィンと、前記フィンに略直角に貫通する多数の伝熱管とから構成された第２の前面側熱交換器を配置すると共に、空気調和機本体の背面側に、多数枚のフィンと、前記フィンに略直角に貫通する多数の伝熱管とから構成された背面側熱交換器を配置して上記３個の熱交換器でファンを囲むようにし、前記第２の前面側熱交換器と前記背面側熱交換器とはそれぞれのフィンの風上側の前縁および風下側の後縁のそれぞれが９０度以下の角度で交差するようにして一体に形成し、前記前面側熱交換器は、フィンの後縁の前記ファンと対向する部分に前記ファンの外形形状に沿うような曲線部を設けて前記フィンの幅寸法を徐々に変化させると共に、前記フィンの最大幅寸法と最大縦寸法と同一
寸法の長方形の一般フィンに貫通される伝熱管の本数と略同数の伝熱管を前記フィンに貫通させるようにしたことを特徴とする空気調和機。 A suction port, a blow-out port, a fan for taking in air from the suction port, a plurality of fins arranged on the front side of the fan and arranged at a predetermined narrow interval, and a large number of holes penetrating substantially perpendicularly to the fins and a front-side heat exchanger configured from a heat transfer tube, the upper side of the front side heat exchanger, is composed of a large number of fins, a plurality of heat transfer tubes penetrating substantially perpendicularly to the fin The second front side heat exchanger is arranged, and the back side heat exchange is configured on the back side of the air conditioner main body by a large number of fins and a large number of heat transfer tubes penetrating the fins substantially at right angles. And the three heat exchangers surround the fan, and the second front side heat exchanger and the rear side heat exchanger are located on the front edge and the leeward side of the fins, respectively. Each trailing edge intersects at an angle of 90 degrees or less The front-side heat exchanger is provided with a curved portion along the outer shape of the fan at a portion facing the fan at the rear edge of the fin to gradually change the width of the fin. And the same as the maximum width and vertical dimension of the fin
An air conditioner characterized in that approximately the same number of heat transfer tubes as the number of heat transfer tubes penetrated by rectangular general fins having dimensions are made to penetrate the fins . 前面側熱交換器のフィンの後縁の少なくとも一部の形状をファンの外径と略同心円の形状にすることを特徴とする請求項４記載の空気調和機。5. The air conditioner according to claim 4, wherein the shape of at least a part of the rear edge of the fin of the front-side heat exchanger is substantially concentric with the outer diameter of the fan. 交差させた両フィンの前縁の最上部に平面部を形成することを特徴とする請求項４又は５記載の空気調和機。 The air conditioner according to claim 4 or 5 , wherein a flat portion is formed at the uppermost part of the front edges of the crossed fins.
JP2003395211A 2003-11-26 2003-11-26 Air conditioner Expired - Fee Related JP4396240B2 (en)

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