JP2006275376A - Heat exchanger and outdoor unit of air conditioner - Google Patents

Heat exchanger and outdoor unit of air conditioner Download PDF

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JP2006275376A
JP2006275376A JP2005093988A JP2005093988A JP2006275376A JP 2006275376 A JP2006275376 A JP 2006275376A JP 2005093988 A JP2005093988 A JP 2005093988A JP 2005093988 A JP2005093988 A JP 2005093988A JP 2006275376 A JP2006275376 A JP 2006275376A
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fin
heat exchanger
bead
width dimension
fins
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Yuji Ono
裕司 大野
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Toshiba Carrier Corp
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Toshiba Carrier Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat exchanger and an outdoor unit of an air conditioner comprising the heat exchanger, capable of enlarging a heat exchanging area, increasing heat exchanging efficiency and reducing ventilation resistance. <P>SOLUTION: This heat exchanger 6 is composed of a plurality of fins 6a formed into the plate shape, and stacked in parallel with each other at plate faces at prescribed pitches, and heat transfer pipes 6b penetrated through the fins at several places separated from each other. The fin comprises a flat plate-shaped fin face portion S and a bead D mounted at least at one of a windward-side end portion and a leeward-side end portion along the longitudinal direction of the fin face portion S, and the bead is composed of only an inclined portion a obliquely bent so that a projecting height from the fin face portion is increased, and a flat portion b connected with the inclined portion, and bent in parallel with the fin face portion. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、フィンチューブタイプの熱交換器に係り、特にフィン構造の改良に関するとともに、この熱交換器を備えた空気調和機の室外機に関する。   The present invention relates to a fin tube type heat exchanger, and more particularly, to an improvement in fin structure and an outdoor unit of an air conditioner equipped with the heat exchanger.

空気調和機の室外機には、筐体であるユニット本体内に、圧縮機および、この圧縮機と冷凍サイクルを構成する熱交換器が配置されるとともに、熱交換器へ外気を送風する送風機が収容される。上記熱交換器は、板状に形成され、板面を互いに平行にして所定のピッチで積層される複数枚のフィンと、互いに離隔した複数箇所で上記フィンを貫通する伝熱管とから構成される、フィンチューブタイプのものが多用される。
上記送風機から熱交換器へ送風される外気はフィン相互間を流通し、これらフィンを介して外気と伝熱管を流通する冷媒とが熱交換する。したがって、上記フィンは熱伝導性に優れ、併せて製造性および加工性に優れた素材が用いられていて、そのほとんどはアルミニュウム材が選択される。
特に室外機に用いられる熱交換器は、ユニット本体の外形寸法と熱交換器自体の熱交換面積との関係から、幅寸法を制限する代りに、縦寸法（長手方向寸法）を長くした短冊状のフィンが用いられることが特徴である。そして、［特許文献１］には、幅方向の両側端で、かつ長手方向に沿ってビードを設けたフィンが開示されている。
特開２００３−２９０８５７号公報 In the outdoor unit of the air conditioner, a compressor and a heat exchanger that constitutes a refrigeration cycle are arranged in a unit body that is a casing, and a blower that blows outside air to the heat exchanger. Be contained. The heat exchanger is formed in a plate shape, and includes a plurality of fins that are stacked at a predetermined pitch with plate surfaces parallel to each other, and heat transfer tubes that penetrate the fins at a plurality of positions spaced apart from each other. The fin tube type is often used.
The outside air blown from the blower to the heat exchanger flows between the fins, and the outside air and the refrigerant flowing through the heat transfer tubes exchange heat through these fins. Therefore, the fins are made of a material having excellent thermal conductivity and also excellent manufacturability and workability, and most of them are aluminum materials.
In particular, heat exchangers used in outdoor units are strips with longer vertical dimensions (longitudinal dimensions) instead of limiting width dimensions due to the relationship between the external dimensions of the unit body and the heat exchange area of the heat exchanger itself. It is the feature that the fin of this is used. [Patent Document 1] discloses a fin provided with beads on both side ends in the width direction and along the longitudinal direction.
JP 2003-290857 A

［特許文献１］における上記ビードは凹状に折曲形成され、剛性の増大化を得るようにしている。一般的には、フィン面からの突出高さが斜めに高くなる傾斜部と、この傾斜部と連設されフィン面と平行な平面部とからなる。上記傾斜部は平面部の両側にあって、ビードとして断面略山形状に折曲形成され、熱交換面積の増大化を図っている。
その一方で断面略山形状のビードは、平面部の両側に傾斜部が２ヶ所存在するため、ビード自体の幅寸法が広くなってしまう。フィン全体の幅寸法が規制される条件下では、ビード相互間に形成され伝熱管が挿通するフィン面部の幅寸法が狭くなり、熱交換効率に影響が出る。
さらに、上記ビードを構成する２ヶ所の傾斜部が、フィン相互間を流通する熱交換空気である外気に対する抵抗となる。すなわち、熱交換器全体の通風抵抗を増加させてしまい、風切り音等の騒音の発生要因となり易い。 The above-mentioned bead in [Patent Document 1] is formed in a concave shape so as to obtain increased rigidity. In general, it is composed of an inclined portion in which the protruding height from the fin surface increases obliquely and a flat portion that is connected to the inclined portion and is parallel to the fin surface. The inclined part is on both sides of the flat part and is bent into a substantially mountain shape as a bead to increase the heat exchange area.
On the other hand, the bead having a substantially mountain-shaped cross section has two inclined portions on both sides of the flat surface portion, so that the width of the bead itself is widened. Under the condition that the width dimension of the entire fin is restricted, the width dimension of the fin surface portion formed between the beads and through which the heat transfer tube is inserted becomes narrow, which affects the heat exchange efficiency.
Further, the two inclined portions constituting the bead serve as resistance to the outside air that is heat exchange air flowing between the fins. That is, the ventilation resistance of the heat exchanger as a whole is increased, which is likely to cause noise such as wind noise.

本発明は上記事情に着目してなされたものであり、その目的とするところは、フィン面部の少なくとも一側部に、傾斜部と平面部とからのみ構成されるビードを備えることにより、熱交換面積を拡大するとともに、熱交換効率の増大化と通風抵抗の低減化を図った熱交換器と、この熱交換器を備えた空気調和機の室外機を提供しようとするものである。   The present invention has been made paying attention to the above circumstances, and its object is to provide heat exchange by providing a bead composed only of an inclined portion and a flat portion on at least one side portion of the fin face portion. An object of the present invention is to provide a heat exchanger that expands the area, increases heat exchange efficiency and reduces ventilation resistance, and an outdoor unit of an air conditioner equipped with the heat exchanger.

上記目的を達成するため本発明における熱交換器は、板状に形成され板面を互いに平行にして所定のピッチを介して積層される複数枚のフィンと、互いに離隔した複数箇所でフィンを貫通する伝熱管とからなり、上記フィンは、平板状のフィン面部と、このフィン面部の長手方向に沿う風上側端部および風下側端部の少なくとも一方に設けられるビードとを備え、上記ビードは、フィン面部からの突出高さが高くなるよう斜めに折曲形成される傾斜部および、この傾斜部と連設されフィン面部と平行に折曲形成される平面部とからのみ構成される。
さらに、上記目的を達成するため本発明における空気調和機の室外機は、吸込み口と吹出し口を備えた筐体であるユニット本体と、このユニット本体に収容される上記熱交換器と、この熱交換器へ送風する送風機および圧縮機を具備する。 In order to achieve the above object, the heat exchanger according to the present invention has a plurality of fins that are formed in a plate shape and are laminated at a predetermined pitch with the plate surfaces parallel to each other, and the fins penetrate through the fins at a plurality of locations separated from each other. The fin includes a flat fin surface portion, and a bead provided on at least one of the windward side end portion and the leeward side end portion along the longitudinal direction of the fin surface portion, It is composed only of an inclined portion that is bent obliquely so as to increase the protruding height from the fin surface portion, and a flat portion that is connected to the inclined portion and bent in parallel with the fin surface portion.
Furthermore, in order to achieve the above object, an outdoor unit of an air conditioner according to the present invention includes a unit main body that is a housing having a suction port and a blowout port, the heat exchanger accommodated in the unit main body, and the heat exchanger. A blower and a compressor for blowing air to the exchanger are provided.

本発明によれば、熱交換面積を拡大するとともに、熱交換効率の増大化と通風抵抗の低減化を図れる熱交換器と、この熱交換器を備えて熱交換性能の向上化を得られる空気調和機の室外機を提供できる。   According to the present invention, a heat exchanger capable of expanding the heat exchange area, increasing the heat exchange efficiency and reducing the ventilation resistance, and the air provided with the heat exchanger to improve the heat exchange performance. It can provide outdoor unit for harmony machine.

以下、図面を参照しながら、本発明の実施の形態について詳細に説明する。
図１は、空気調和機を構成する室外機の概略横断平面図である。
筐体であるユニット本体１は、平面視で縦寸法よりも幅寸法（横寸法）が極めて大なる横長矩形状に形成され、図示しない正面視では幅寸法が縦寸法よりも僅かに大である略矩形状に形成される。
ユニット本体１の背面と一方の側面（図の左側）には吸込み口２ａ，２ｂが設けられ、前面側には吹出し口３が設けられる。これら吸込み口２ａ，２ｂと吹出し口３のいずれにも、図示しないグリルが嵌め込まれ安全化が図られている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic cross-sectional plan view of an outdoor unit constituting an air conditioner.
The unit main body 1 as a housing is formed in a horizontally long rectangular shape having a width dimension (horizontal dimension) that is extremely larger than a vertical dimension in plan view, and the width dimension is slightly larger than the vertical dimension in a front view (not shown). It is formed in a substantially rectangular shape.
Suction ports 2a and 2b are provided on the back surface and one side surface (left side in the figure) of the unit body 1, and a blow-out port 3 is provided on the front surface side. A grill (not shown) is fitted into each of the suction ports 2a and 2b and the blowout port 3 for safety.

ユニット本体１内部は、仕切り板４によって二室５Ａ，５Ｂに区画されている。上記仕切り板４は、一端部が背面吸込み口２ａの側部に設けられ、他側部が吹出し口３の側部に設けられて、中間部分は斜めに折曲形成される。上記仕切り板４によりユニット本体１内は吸込み口２ａ，２ｂと吹出し口３側である熱交換室５Ａと、他方側の機械室５Ｂとに区画形成される。
上記熱交換室５Ａには、背面吸込み口２ａと側面吸込み口２ｂに沿って熱交換器６が配置されるとともに、この熱交換器６に吸込み側を対向させ、かつ前面吹出し口３に吹出し側を対向させた状態で送風機７が配置される。 The inside of the unit body 1 is divided into two chambers 5A and 5B by a partition plate 4. One end of the partition plate 4 is provided on the side of the back suction port 2a, the other side is provided on the side of the blowout port 3, and the middle portion is bent obliquely. The partition plate 4 divides the inside of the unit body 1 into suction ports 2a and 2b, a heat exchange chamber 5A on the outlet 3 side, and a machine chamber 5B on the other side.
In the heat exchange chamber 5A, a heat exchanger 6 is disposed along the rear suction port 2a and the side suction port 2b, the suction side is opposed to the heat exchanger 6, and the front blower port 3 has a blower side. The blower 7 is arranged in a state in which they face each other.

上記送風機７は、支持架台８に取付け固定されるファンモータＭと、このファンモータＭの回転軸に取付け固定されるプロペラファンＦとからなり、このプロペラファンＦと上記吹出し口３との間にはベルマウス９が設けられる。
上記熱交換器６は、後述する複数枚のフィン６ａと、これらフィン６ａを貫通する伝熱管６ｂとからなるフィンチューブタイプのものであり、背面吸込み口２ａと側面吸込み口２ｂに沿うところから、平面視で略Ｌ字状に形成される。そして熱交換器６は、ここでは２列の熱交換器６，６を互いに密着状態に合わせた構成となっている。 The blower 7 includes a fan motor M that is attached and fixed to the support frame 8 and a propeller fan F that is attached and fixed to the rotation shaft of the fan motor M. Between the propeller fan F and the outlet 3. A bell mouth 9 is provided.
The heat exchanger 6 is of a fin tube type composed of a plurality of fins 6a to be described later and heat transfer tubes 6b penetrating through the fins 6a, and from the place along the back suction port 2a and the side suction port 2b, It is formed in a substantially L shape in plan view. The heat exchanger 6 has a configuration in which two rows of heat exchangers 6 and 6 are in close contact with each other.

上記機械室５Ｂには圧縮機１０が配置され、かつ図示しない気液分離器や、四方切換え弁他の弁類および配管類が収容される。機械室５Ｂの側面部には、空気調和機を構成する室内機との間に架設される渡り配管や渡り配線を接続するための、図示しない接続具が取付けられている。
このようにして構成される空気調和機の室外機であり、運転開始指令が出されると圧縮機１０が駆動され、冷媒を圧縮して吐出する。高温高圧化した冷媒は上記四方切換え弁を介して室外機の熱交換器６もしくは室内機の熱交換器に導かれ、設定された運転条件に応じた空気調和作用をなす。 The machine room 5B is provided with a compressor 10 and accommodates a gas-liquid separator (not shown), valves such as a four-way switching valve, and piping. On the side surface of the machine room 5B, a connection tool (not shown) for connecting a transition pipe or a transition wiring installed between the indoor unit constituting the air conditioner is attached.
This is an outdoor unit of an air conditioner configured as described above. When an operation start command is issued, the compressor 10 is driven to compress and discharge the refrigerant. The high-temperature and high-pressure refrigerant is led to the heat exchanger 6 of the outdoor unit or the heat exchanger of the indoor unit through the four-way switching valve, and has an air conditioning action according to the set operating conditions.

圧縮機１０の運転とともに送風機７が駆動され、背面吸込み口２ａおよび側面吸込み口２ｂから外気を吸込んで熱交換器６へ送風する。熱交換器６を構成する伝熱管６ｂには圧縮機１０で圧縮された冷媒が四方切換え弁を介して直接、もしくは室内機の熱交換器等を介して導かれる。吸込み口２ａ，２ｂから導かれた外気は、熱交換器６を構成するフィン６ａ相互間に流通し、フィン６ａを介して外気と冷媒とが熱交換する。熱交換後の冷媒は所定の冷凍サイクル構成機器に導かれ、外気は吹出し口３から外部へ吹出される。   The blower 7 is driven along with the operation of the compressor 10, sucks outside air from the back suction port 2 a and the side suction port 2 b and blows it to the heat exchanger 6. The refrigerant compressed by the compressor 10 is guided to the heat transfer tube 6b constituting the heat exchanger 6 directly via the four-way switching valve or via the heat exchanger of the indoor unit. The outside air guided from the suction ports 2a and 2b flows between the fins 6a constituting the heat exchanger 6, and the outside air and the refrigerant exchange heat through the fins 6a. The refrigerant after the heat exchange is guided to a predetermined refrigeration cycle component device, and the outside air is blown out through the blowout port 3.

つぎに、熱交換器６を構成するフィン６ａについて詳述する。
図２（Ａ）は複数枚のフィン６ａの一部斜視図であり、図２（Ｂ）は１枚のフィン６ａの側面図である。
上記フィン６ａは、アルミニュウム素材の薄板からなり、プレス加工により後述するような構造に一体成形される。フィン６ａは、図２（Ａ）に示す幅（横）方向長さと比較して、一部のみ示す長手方向（縦方向）長さが大である、略短冊状に形成される。
フィン６ａは、幅方向の中央部をなすフィン面部Ｓと、このフィン面部Ｓの左右両側部に一体に連設されるビードＤとから構成される。上記フィン面部Ｓは、所定幅に対して長手方向に長く平板状に形成され、この長手方向に所定間隔を存してカラーＫが一体に突設される。 Next, the fins 6a constituting the heat exchanger 6 will be described in detail.
2A is a partial perspective view of a plurality of fins 6a, and FIG. 2B is a side view of one fin 6a.
The fin 6a is made of an aluminum material thin plate, and is integrally formed into a structure as will be described later by press working. The fin 6a is formed in a substantially strip shape having a length in the longitudinal direction (longitudinal direction) shown only partially, as compared with the length in the width (lateral) direction shown in FIG.
The fin 6a includes a fin surface portion S that forms a central portion in the width direction, and beads D that are integrally connected to both the left and right side portions of the fin surface portion S. The fin surface portion S is formed in a plate shape that is long in the longitudinal direction with respect to a predetermined width, and the collar K is integrally protruded with a predetermined interval in the longitudinal direction.

上記カラーＫは、フィン６ａとともに熱交換器６を構成する伝熱管６ｂの挿通用として設けられている。カラーＫは、伝熱管６ｂと同様、円形をなし、直径は伝熱管６ｂが挿入可能なように、伝熱管６ｂの直径よりも僅かに大きく形成される。そして、伝熱管６ｂをカラーＫに挿入後、伝熱管６ｂを拡管することにより、カラーＫに伝熱管６ｂが密着するように構成されている。なお、カラーＫの先端縁は外方へフィン面部Ｓと平行に折曲され、カラーＫ自体の剛性を確保している。
上記フィン面部Ｓの左右両側に形成されるビードＤは、それぞれフィン面部Ｓから斜めに折曲され、フィン面部Ｓに対する突出高さが高くなる傾斜部ａおよび、この傾斜部ａの端縁に沿って折曲形成されフィン面Ｓと平行な平面部ｂとから構成される。
なお説明すれば、熱交換器６を構成して上記部位に配置され冷凍サイクル運転をなす状態で、上記ビードＤは、フィン面部Ｓから風上側もしくは風下側となる端部に向かって傾斜する傾斜部ａおよび、この傾斜部ａと連設されフィン面部Ｓと平行な平面部ｂのみとから形成される。 The collar K is provided for insertion of a heat transfer tube 6b that constitutes the heat exchanger 6 together with the fins 6a. Like the heat transfer tube 6b, the collar K has a circular shape and has a diameter slightly larger than the diameter of the heat transfer tube 6b so that the heat transfer tube 6b can be inserted. After the heat transfer tube 6b is inserted into the collar K, the heat transfer tube 6b is expanded so that the heat transfer tube 6b is in close contact with the collar K. The leading edge of the collar K is bent outward in parallel with the fin surface portion S to ensure the rigidity of the collar K itself.
The beads D formed on the left and right sides of the fin surface portion S are each bent obliquely from the fin surface portion S, along the inclined portion a where the protruding height with respect to the fin surface portion S is increased, and along the edge of the inclined portion a. It is formed of a plane portion b that is bent and parallel to the fin surface S.
If it demonstrates, in the state which comprises the heat exchanger 6 and is arrange | positioned at the said site | part and makes a refrigerating cycle driving | operation, the said bead D will incline toward the edge part which becomes a windward side or a leeward side from the fin surface part S It is formed of only a portion a and a flat portion b that is connected to the inclined portion a and is parallel to the fin surface portion S.

図３は本発明における第１の実施の形態でのフィン６ａと、従来から用いられるフィンＺとを比較する図である。
図の上部側が従来構造のフィンＺであり、カラーＫが設けられた所定幅寸法のフィン面部Ｓｚで、この左右両側部にビードＤｚが一体に形成される。フィンＺにおけるビードＤｚは、フィン面部Ｓｚから折曲形成される傾斜部ａ１と、この傾斜部ａ１の端縁に沿ってフィン面部Ｓｚと平行に折曲形成される平面部ｂと、上記傾斜部ａ１とは逆方向に折曲される傾斜部ａ２および、この傾斜部ａ２端縁に沿ってフィン面部Ｓｚと同一高さで、かつ僅かな幅の端縁部ｃとからなる。 FIG. 3 is a diagram comparing the fins 6a according to the first embodiment of the present invention and the fins Z used conventionally.
The upper side of the figure is a fin Z having a conventional structure, and a fin surface Sz having a predetermined width dimension provided with a collar K, and beads Dz are integrally formed on both left and right sides. The bead Dz in the fin Z includes an inclined portion a1 that is bent from the fin surface portion Sz, a flat surface portion b that is bent in parallel with the fin surface portion Sz along the edge of the inclined portion a1, and the inclined portion. The inclined portion a2 is bent in the opposite direction to a1, and the edge portion c has the same height as the fin surface portion Sz and a slight width along the edge of the inclined portion a2.

これに対して本実施構造のフィン６ａは、従来構造フィンＺにおけるフィン面部Ｓｚと同一幅寸法のフィン面部Ｓを備えたうえで、左右両側部のビードＤが傾斜部ａおよび平面部ｂとからのみ形成される。したがって、ビードＤ自体の幅寸法が従来構造フィンＺのビードＤｚの幅寸法よりも狭くてすむ。従来構造フィンＺの全体幅寸法をＷｚとし、本実施構造のフィン６ａの全体幅寸法をＷｆとしたとき、
Ｗｚ ＞ Ｗｆ
となって、本実施構造のフィン６ａ全体の幅寸法Ｗｆが、従来構造のフィンＺ全体の幅寸法Ｗｚよりも狭くてすむ。
したがって、このような本実施構造のフィン６ａを用いて熱交換器６を構成することにより、熱交換器６自体をさらに薄型化できて、軽量化を図れる。
また、ビードＤを構成する傾斜部ａは、フィン６ａ間を流通する熱交換空気に対して抵抗となる。本実施構造のフィン６ａにおけるビードＤは、１つの傾斜部ａのみを有する構成であるために、従来の２つの傾斜部ａ１，ａ２を備えるフィンＺと比較して通風抵抗を低く抑えることができ、高性能な熱交換器６を得られる。 On the other hand, the fin 6a of the present embodiment includes the fin surface portion S having the same width as the fin surface portion Sz in the conventional structure fin Z, and the beads D on the left and right side portions are separated from the inclined portion a and the flat portion b. Only formed. Therefore, the width dimension of the bead D itself can be smaller than the width dimension of the bead Dz of the conventional structure fin Z. When the overall width dimension of the conventional structural fin Z is Wz and the overall width dimension of the fin 6a of the present embodiment structure is Wf,
Wz> Wf
Thus, the width dimension Wf of the entire fin 6a of the present structure is smaller than the width dimension Wz of the entire fin Z of the conventional structure.
Therefore, by configuring the heat exchanger 6 using the fins 6a of this embodiment structure, the heat exchanger 6 itself can be further reduced in thickness and weight can be reduced.
Moreover, the inclination part a which comprises the bead D becomes resistance with respect to the heat exchange air which distribute | circulates between the fins 6a. Since the bead D in the fin 6a of this embodiment structure has only one inclined portion a, the ventilation resistance can be suppressed lower than that of the conventional fin Z having two inclined portions a1 and a2. A high performance heat exchanger 6 can be obtained.

図４は、本発明における第２の実施の形態でのフィン６０ａと、このフィン６０ａと比較する従来構造のフィンＺの側面図である。
図中下段に示す第２の実施の形態でのフィン６０ａは、フィン面部Ｓａの左右両側に一体に設けられるビードＤが傾斜部ａと平面部ｂとからのみ形成されるのに対して、上述したように従来構造のフィンＺは、フィン面部Ｓｚの左右両側のビードＤｚが、左右逆に傾斜する２つの傾斜部ａ１，ａ２と、これら傾斜部ａ１，ａ２間に形成される平面部ｂと、僅かな幅の端縁部ｃからなる。 FIG. 4 is a side view of the fin 60a according to the second embodiment of the present invention and a fin Z having a conventional structure compared with the fin 60a.
In the fin 60a in the second embodiment shown in the lower part of the figure, the beads D integrally provided on the left and right sides of the fin surface portion Sa are formed only from the inclined portion a and the flat portion b, whereas As described above, the fin Z having the conventional structure includes two inclined portions a1 and a2 in which the beads Dz on the left and right sides of the fin surface portion Sz are inclined in the opposite direction, and a flat portion b formed between the inclined portions a1 and a2. , Consisting of an edge c having a slight width.

本実施構造のフィン６０ａの全体幅寸法を、従来構造のフィンＺの全体幅寸法Ｗｚと同一に設定した場合は、従来構造フィンＺにおけるビードＤｚの幅寸法よりも、本実施構造のフィン６０ａにおけるビードＤの幅寸法が狭くてすむ。すなわち、従来構造フィンＺのフィン面部Ｓｚの幅寸法をＵｚとし、本実施構造におけるフィン６０ａのフィン面部Ｓａの幅寸法をＵｆとしたとき、
Ｕｆ ＞ Ｕｚ
となって、本実施構造フィン６０ａにおけるフィン面部Ｓａの幅寸法Ｕｆを、従来構造フィンＺにおけるフィン面部Ｓｚの幅寸法Ｕｚよりも大きくとることができる。 When the overall width dimension of the fin 60a of this embodiment structure is set to be the same as the overall width dimension Wz of the fin Z of the conventional structure, the width of the bead Dz in the conventional structure fin Z is larger than that of the fin 60a of this embodiment structure. The width dimension of the bead D can be narrow. That is, when the width dimension of the fin surface portion Sz of the conventional structure fin Z is Uz and the width dimension of the fin surface portion Sa of the fin 60a in this embodiment structure is Uf,
Uf> Uz
Thus, the width dimension Uf of the fin surface portion Sa in the present structural fin 60a can be made larger than the width dimension Uz of the fin surface portion Sz in the conventional structure fin Z.

また、いずれのフィン６０ａ，Ｚにおいても、フィン面部Ｓａ、Ｓｚには上記伝熱管６ｂを挿通させるためのカラーＫが設けられるが、上記カラーＫの位置をフィン面部Ｓａ，Ｓｚの中心から風下側もしくは風上側に位置をずらすことで、伝熱量の増大化を図れ、通風抵抗の減少化を得られることが知られている。
本実施構造のフィン６０ａにおけるフィン面部Ｓａの幅寸法Ｕｆが、従来構造フィンＺのフィン面部Ｓｚの幅寸法Ｕｚよりも広く確保できるところから、カラーＫの位置をフィン面部Ｓａ中心に対して大きく位置をずらせる。したがって、従来構造フィンＺよりも本実施構造フィン６０ａの方が、伝熱量が増大して通風抵抗が減少する。 Further, in any fin 60a, Z, a collar K for inserting the heat transfer tube 6b is provided on the fin face portions Sa, Sz. The position of the collar K is located on the leeward side from the center of the fin face portions Sa, Sz. Alternatively, it is known that the amount of heat transfer can be increased and the ventilation resistance can be reduced by shifting the position to the windward side.
Since the width dimension Uf of the fin surface portion Sa of the fin 60a of the present embodiment structure can be ensured wider than the width dimension Uz of the fin surface portion Sz of the conventional structure fin Z, the position of the collar K is positioned larger than the center of the fin surface portion Sa. To shift. Therefore, the present structural fin 60a increases the amount of heat transfer and reduces the ventilation resistance than the conventional structural fin Z.

図５（Ａ）は本発明における第３の実施の形態での複数枚のフィン１６０ａの一部斜視図であり、図５（Ｂ）は１枚のフィン１６０ａの側面図である。
ここでのフィン１６０ａは、フィン全体の幅寸法が、先に第１の実施の形態で説明したフィン６ａもしくは第２の実施の形態で説明したフィン６０ａと同一に設定される。そのうえで、フィン１６０ａはフィン面部Ｓｂおよび、このフィン面部Ｓｂの一側部に沿って設けられるビードＤから構成され、フィン面部Ｓｂの他側部にはビードＤが形成されていない。
このように、フィン面部Ｓｂの一側部のみに、傾斜部ａおよび平面部ｂからなるビードＤを形成したフィン１６０ａであって、フィン１６０ａ全体の幅寸法を上述のフィン６ａ，６０ａと同一に設定すれば、フィン面部Ｓｂの幅寸法をより広く確保できる。そして、このフィン面部Ｓｂに形成されるカラーＫの位置をさらに中心からずれた位置に設定することができて、伝熱量の増大と、通風抵抗の減少を図れる。 FIG. 5A is a partial perspective view of a plurality of fins 160a according to the third embodiment of the present invention, and FIG. 5B is a side view of one fin 160a.
Here, the fin 160a is set to have the same width as that of the fin 6a described in the first embodiment or the fin 60a described in the second embodiment. In addition, the fin 160a includes a fin surface portion Sb and a bead D provided along one side portion of the fin surface portion Sb, and no bead D is formed on the other side portion of the fin surface portion Sb.
As described above, the fin 160a is formed with the bead D composed of the inclined portion a and the plane portion b only on one side of the fin surface portion Sb, and the entire width of the fin 160a is the same as that of the above-described fins 6a and 60a. If set, the width dimension of the fin surface portion Sb can be secured more widely. Further, the position of the collar K formed on the fin surface portion Sb can be set to a position further shifted from the center, so that the heat transfer amount can be increased and the ventilation resistance can be reduced.

図６は、上記送風機７を駆動して熱交換器６へ熱交換空気を送風した状態で、熱交換空気の風速に対するフィンの熱伝達率を実測しグラフ化した特性図であり、実線変化Ｈが本発明構造のビードＤを備えたフィン６ａであり、破線変化Ｘが従来構造のビードＤｚを備えたフィンＺである。
いずれも、風速の増大にともなって熱伝達率が増大する。ただし、本発明構造のフィン６ａと従来構造のフィンＺとで、ほとんど差がない状態で変化する。 FIG. 6 is a characteristic diagram in which the heat transfer coefficient of the fin with respect to the wind speed of the heat exchange air is measured and graphed in a state where the air blower 7 is driven and the heat exchange air is blown to the heat exchanger 6. Is the fin 6a provided with the bead D of the structure of the present invention, and the broken line change X is the fin Z provided with the bead Dz of the conventional structure.
In either case, the heat transfer coefficient increases as the wind speed increases. However, there is little difference between the fin 6a having the structure of the present invention and the fin Z having the conventional structure.

図７は、熱交換空気の風速に対するフィンの通風抵抗を実測しグラフ化した特性図であり、実線変化Ｈａが本発明構造のビードＤを備えたフィン６ａであり、破線変化Ｘａが従来構造のビードＤｚを備えたフィンＺである。
上述したように、本発明構造のビードＤが一つの傾斜部ａおよび平面部ｂからなるのに対して、従来構造のビードＤｚは二つの傾斜部ａ１，ａ２と一つの平面部ｂからなるので、通風抵抗は本発明構造のフィン６ａよりも従来構造のフィンＺの方が大である。そのため、風速の増大にともなう通風抵抗の増大に対する割合が、本発明構造のフィン６ａの方が従来構造のフィンＺよりも小さくてすみ、熱交換効率の増大化を得られる。 FIG. 7 is a characteristic diagram in which the ventilation resistance of the fin with respect to the wind speed of the heat exchange air is measured and graphed. The solid line change Ha is the fin 6a provided with the bead D of the structure of the present invention, and the broken line change Xa is the conventional structure. It is the fin Z provided with the bead Dz.
As described above, the bead D of the structure of the present invention is composed of one inclined portion a and a plane portion b, whereas the bead Dz of the conventional structure is composed of two inclined portions a1 and a2 and one plane portion b. The ventilation resistance of the fin Z having the conventional structure is larger than that of the fin 6a having the structure of the present invention. Therefore, the ratio of the increase in the draft resistance with the increase in the wind speed is smaller in the fin 6a having the structure of the present invention than in the fin Z having the conventional structure, and the heat exchange efficiency can be increased.

図８は、本発明構造のフィン６ａにおいて、ビードＤの幅寸法に対するフィン６ａの熱伝達率および通風抵抗を実測しグラフ化した特性図である。図で実線変化Ｇが熱伝達率を示し、破線変化Ｒが通風抵抗を示す。
フィン６ａの幅寸法を一定にしたうえで、ビードＤの幅寸法を大きくとると、ビードＤを構成する傾斜部ａがフィン面部Ｓに設けられるカラーＫに接近する。すなわち、傾斜部ａはカラーＫに挿通される伝熱管６ｂに接近するため、伝熱管６ｂとその近傍部位での熱交換空気の流れが阻害され、通風抵抗が増大して熱伝達率の悪化を招く。
図８において、フィン６ａ全体の幅寸法をＷｆとし、フィン６ａに設けられるカラーＫの直径をｄとすると、１個のビードＤの幅寸法Ｗは同図から、以下の（１）式を満足するよう設定すれば、熱交換性能が最適となる。
Ｗ ≦ ０．４５ × （ Ｗｆ−ｄ ） ……（１）
なお、ビードＤの幅寸法Ｗの下限は、 Ｗ ≧ ０．１ であることが望ましい。 FIG. 8 is a characteristic diagram in which the heat transfer coefficient and the ventilation resistance of the fin 6a with respect to the width dimension of the bead D are measured and graphed in the fin 6a having the structure of the present invention. In the figure, the solid line change G indicates the heat transfer coefficient, and the broken line change R indicates the ventilation resistance.
When the width dimension of the bead D is increased after making the width dimension of the fin 6a constant, the inclined part a constituting the bead D approaches the collar K provided on the fin surface part S. In other words, since the inclined portion a approaches the heat transfer tube 6b inserted through the collar K, the flow of heat exchange air in the heat transfer tube 6b and the vicinity thereof is obstructed, and the ventilation resistance increases and the heat transfer coefficient deteriorates. Invite.
In FIG. 8, when the width dimension of the fin 6a as a whole is Wf and the diameter of the collar K provided on the fin 6a is d, the width dimension W of one bead D satisfies the following formula (1). If set to do so, the heat exchange performance will be optimal.
W ≦ 0.45 × (Wf−d) (1)
In addition, it is desirable that the lower limit of the width dimension W of the bead D is W ≧ 0.1.

図９は、ビードＤの幅寸法総和Ｗａに対するフィン６ａの撓み量Ｑを実測しグラフ化した特性図である。
上記ビードＤは、フィン６ａの強度を向上させる効果があるが、ビードＤの幅寸法が狭くなると、フィンを支持したときのたわみ量Ｑが増大して、製造性が悪化する。
図９において、フィン６ａ全体の幅寸法をＷｆとし、フィン６ａに設けられるビードＤの幅寸法の総和をＷａとすると、ビード幅寸法総和Ｗａは、同図から以下の（２）式を満足するように設定すれば、製造性の良いフィン６ａを提供できる。 FIG. 9 is a characteristic diagram in which the deflection amount Q of the fin 6a with respect to the total width Wa of the beads D is measured and graphed.
The bead D has an effect of improving the strength of the fin 6a. However, when the width dimension of the bead D is narrowed, the deflection amount Q when the fin is supported is increased and the productivity is deteriorated.
In FIG. 9, when the width dimension of the entire fin 6a is Wf and the total width dimension of the beads D provided on the fin 6a is Wa, the total bead width dimension Wa satisfies the following formula (2) from FIG. If it sets so, the fin 6a with sufficient manufacturability can be provided.

Ｗａ ≧ ０．１ × Ｗｆ ……（２）
フィン６ａの撓み量Ｑにおいて所定値ｊは、フィンの製造性に影響がない限界のたわみ量を示していて、当然、この値ｊ以下のたわみ量でなければならない。また、ビード幅寸法総和Ｗａの上限は、 Ｗａ≦０．５ であることが望ましい。
本発明は上述した実施の形態そのままに限定されるものではなく、実施段階ではその要旨を逸脱しない範囲で構成要素を変形して具体化できる。そして、上述した実施の形態に開示されている複数の構成要素の適宜な組み合わせにより種々の発明を形成できる。 Wa ≧ 0.1 × Wf (2)
In the deflection amount Q of the fin 6a, the predetermined value j indicates a limit deflection amount that does not affect the manufacturability of the fin, and naturally, the deflection amount must be equal to or less than this value j. Further, the upper limit of the total bead width dimension Wa is preferably Wa ≦ 0.5.
The present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments.

本発明の実施の形態に係る、空気調和機の室外機の概略横断平面図。The schematic cross-sectional top view of the outdoor unit of the air conditioner based on Embodiment of this invention. 同第１の実施の形態に係る、フィンの一部斜視図と側面図。The partial perspective view and side view of a fin which concern on the 1st Embodiment. 同実施の形態に係る、フィンと従来構成のフィンとの寸法構造を比較する図。The figure which compares the dimensional structure of the fin and the fin of a conventional structure based on the embodiment. 本発明における第２の実施の形態に係る、フィンと従来構成のフィンとの寸法構造を比較する図。The figure which compares the dimension structure of the fin and the fin of a conventional structure based on 2nd Embodiment in this invention. 本発明における第３の実施の形態に係る、フィンの一部斜視図と側面図。The partial perspective view and side view of a fin which concern on the 3rd Embodiment in this invention. 本発明の実施の形態でのフィンと従来構成のフィンとの、風速に対する熱伝達率の特性図。The characteristic figure of the heat transfer rate with respect to a wind speed of the fin in embodiment of this invention and the fin of a conventional structure. 本発明の実施の形態でのフィンと従来構成のフィンとの、風速に対する通風抵抗の特性図。The characteristic figure of the ventilation resistance with respect to the wind speed of the fin in embodiment of this invention and the fin of a conventional structure. 本発明の実施の形態でのフィンにおける、ビードの幅寸法に対する熱伝達率と通風抵抗の特性図。The characteristic figure of the heat transfer rate with respect to the width dimension of a bead, and ventilation resistance in the fin in embodiment of this invention. 本発明の実施の形態でのフィンにおける、ビード幅の総和に対するフィンのたわみ量の特性図。The characteristic view of the deflection amount of the fin with respect to the sum total of the bead width in the fin in embodiment of this invention.

符号の説明Explanation of symbols

６ａ…フィン、６ｂ…伝熱管、６…熱交換器、Ｓ…フィン面部、Ｄ…ビード、ａ…傾斜部、ｂ…平面部、２ａ，２ｂ…吸込み口、３…吹出し口、１…ユニット本体、７…送風機、１０…圧縮機。   6a ... Fins, 6b ... Heat transfer tubes, 6 ... Heat exchanger, S ... Fin face part, D ... Beads, a ... Inclined part, b ... Plane part, 2a, 2b ... Suction port, 3 ... Outlet port, 1 ... Unit body , 7 ... Blower, 10 ... Compressor.

Claims (4)

板状に形成され、板面を互いに平行にして所定のピッチを介して積層される複数枚のフィンと、互いに離隔した複数箇所で上記フィンを貫通する伝熱管とからなる熱交換器において、
上記フィンは、
平板状のフィン面部と、このフィン面部の長手方向に沿う風上側端部および風下側端部の少なくとも一方に設けられるビードとを備え、
上記ビードは、
上記フィン面部からの突出高さが高くなるよう斜めに折曲形成される傾斜部および、この傾斜部と連設されフィン面部と平行に折曲形成される平面部とからのみ構成されることを特徴とする熱交換器。 In a heat exchanger composed of a plurality of fins that are formed in a plate shape and are laminated at a predetermined pitch with the plate surfaces parallel to each other, and heat transfer tubes that penetrate the fins at a plurality of locations separated from each other,
The fin is
A flat fin surface portion, and a bead provided on at least one of the windward side end portion and the leeward side end portion along the longitudinal direction of the fin surface portion,
The bead is
It is composed only of an inclined part that is bent obliquely so that the protruding height from the fin surface part is increased, and a flat part that is connected to the inclined part and bent in parallel with the fin surface part. Features heat exchanger. 上記ビードは、上記フィンの幅寸法をＷｆ、フィンに設けられ前記伝熱管が挿通するカラーの直径をｄ、１個のビードの幅寸法をＷとしたとき、下記（１）式を満たすように構成されることを特徴とする請求項１記載の熱交換器。
Ｗ ≦ ０．４５ × （ Ｗｆ−ｄ ） ……（１） The bead satisfies the following formula (1), where Wf is the width dimension of the fin, d is the diameter of the collar provided in the fin and the heat transfer tube is inserted, and W is the width dimension of one bead. The heat exchanger according to claim 1, wherein the heat exchanger is configured.
W ≦ 0.45 × (Wf−d) (1) 上記ビードは、上記フィンの幅寸法をＷｆ、ビードの幅寸法の総和をＷａとしたとき、下記（２）式を満たすように構成されることを特徴とする請求項１および請求項２のいずれかに記載の熱交換器。
Ｗａ ≧ ０．１ × Ｗｆ ……（２） The said bead is comprised so that the following (2) Formula may be satisfy | filled when the width dimension of the said fin is set to Wf and the sum total of the width dimension of a bead is set to Wa. The heat exchanger according to crab.
Wa ≧ 0.1 × Wf (2) 吸込み口および吹出し口を備えた筐体であるユニット本体と、このユニット本体に収容される上記請求項１ないし請求項３のいずれかに記載の熱交換器と、この熱交換器へ送風する送風機および圧縮機を具備することを特徴とする空気調和機の室外機。   The unit main body which is a housing | casing provided with the suction inlet and the blower outlet, The heat exchanger in any one of the said Claim 1 thru | or 3 accommodated in this unit main body, and the air blower which ventilates to this heat exchanger And an air conditioner outdoor unit comprising a compressor.
JP2005093988A 2005-03-29 2005-03-29 Heat exchanger and outdoor unit of air conditioner Pending JP2006275376A (en)

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JP2009264620A (en) * 2008-04-23 2009-11-12 Sharp Corp Heat exchanger and heat exchanging system
US8826970B2 (en) 2008-04-23 2014-09-09 Sharp Kabushiki Kaisha Heat exchanger and heat exchanging system
TWI400425B (en) * 2010-11-24 2013-07-01 Auras Technology Ltd Method and Structure of Flat Heat Conveying Pipe Fastening Cooling Fin
CN112146328A (en) * 2019-06-27 2020-12-29 三星电子株式会社 Heat exchanger and refrigerator including the same
WO2020262949A1 (en) * 2019-06-27 2020-12-30 Samsung Electronics Co., Ltd. Heat exchanger and refrigerator including the same
EP3757488B1 (en) * 2019-06-27 2023-02-22 Samsung Electronics Co., Ltd. Refrigerator including a heat exchanger

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