JP3264525B2 - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JP3264525B2 JP3264525B2 JP27309692A JP27309692A JP3264525B2 JP 3264525 B2 JP3264525 B2 JP 3264525B2 JP 27309692 A JP27309692 A JP 27309692A JP 27309692 A JP27309692 A JP 27309692A JP 3264525 B2 JP3264525 B2 JP 3264525B2
- Authority
- JP
- Japan
- Prior art keywords
- heat exchange
- exchange pipe
- heat
- fins
- fin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0475—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend
- F28D1/0476—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend the conduits having a non-circular cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/006—Preventing deposits of ice
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/12—Fins with U-shaped slots for laterally inserting conduits
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、例えば、空気調和機
の室外機に組み込まれる熱交換器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger incorporated in, for example, an outdoor unit of an air conditioner.
【０００２】[0002]
【従来の技術】近年、エアコン（空気調和機）の性能向
上およびコンパンクト化の要請から、より熱交換効率の
良い偏平管を用いたいわゆるパラレルフロ−型熱交換器
の研究が行われている。2. Description of the Related Art In recent years, researches on so-called parallel flow type heat exchangers using flat tubes having higher heat exchange efficiency have been conducted in order to improve the performance and compactness of air conditioners (air conditioners).
【０００３】ただし、一般的には、自動車等で用いられ
るもののように、帯板状の放熱フィンをジグザクに折曲
し、これを並列に配置された偏平管の対向面間に挟みこ
み、ろう付けすることにより製造されたものが多い。[0003] However, in general, a strip-shaped radiating fin is bent in a zigzag manner like that used in an automobile or the like, and is sandwiched between opposed surfaces of flat tubes arranged in parallel. Many are manufactured by attaching.
【０００４】[0004]
【発明が解決しようとする課題】ところで、従来の一般
的なパラレルフロ−型の熱交換器には、以下のような解
決すべき課題がある。The conventional general parallel flow type heat exchanger has the following problems to be solved.
【０００５】すなわち、この熱交換器を室外側熱交換器
として用い、暖房運転する場合には、上記放熱フィンに
発生したドレンが凍結して着霜する場合がある。特に、
最初に空気が衝突する通風方向風上側の部分は着霜しや
すいが、この着霜が発達すると、空気の導入が妨げられ
熱交換性能が大幅に低下する場合がある。[0005] That is, when this heat exchanger is used as an outdoor heat exchanger to perform a heating operation, the drain generated on the radiation fins may freeze and form frost. In particular,
Although the portion on the windward side where the air collides first tends to form frost, if this frost develops, the introduction of air is hindered and the heat exchange performance may be significantly reduced.
【０００６】この発明は、このような事情に鑑みてなさ
れたもので、パラレルフロ−型の熱交換器において、着
霜を有効に防止できる熱交換器を提供することを目的と
するものである。The present invention has been made in view of such circumstances, and has as its object to provide a heat exchanger of a parallel flow type heat exchanger that can effectively prevent frost formation. .
【０００７】[0007]
【課題を解決するための手段】この発明の第１の手段
は、幅方向を通風方向と略平行にして配置され、内部に
熱交換媒体が流通する偏平状の熱交換パイプと、通風方
向風下側に開放する挿入孔を有しこの挿入孔に上記熱交
換パイプを挿入することでこの熱交換パイプと直交する
状態で組み合わされる帯板状の放熱フィンとを具備し、
上記放熱フィンの上記熱交換パイプが設けられた部分の
通風方向の幅ｗ１と上記放熱フィンの通風方向の全幅ｗ
２の比ｗ２／ｗ１を１．２〜１．９とすることにより、
上記放熱フィンの風上側端部を上記熱交換パイプの風上
側端から０．２ｗ１〜０．９ｗ１だけ風上側に延出する
とともに、前記挿入孔の開放側が折曲の内側になるよう
に少なくとも１箇所を折曲形成したことを特徴とするも
のである。According to a first aspect of the present invention, there is provided a flat heat exchange pipe which is disposed substantially parallel to a ventilation direction in a width direction and through which a heat exchange medium flows, and a leeward direction in a ventilation direction. A strip-shaped radiation fin combined with the heat exchange pipe in a state orthogonal to the heat exchange pipe by inserting the heat exchange pipe into the insertion hole having an insertion hole opened to the side,
The heat dissipation fins of the heat exchange pipe is a ventilation direction of the portion provided width w 1 and ventilation direction of the heat radiation fins total width w
With 2 ratio w 2 / w 1 to 1.2 to 1.9,
Windward side end portion of the heat radiating fins extending in 0.2w 1 ~0.9w 1 only upwind from the wind upper end of the heat exchange pipe
So that the open side of the insertion hole is inside the bend
And at least one portion is bent .
【０００８】第２の手段は、上記第１の手段において、
上記放熱フィンの一面には、隣り合う放熱フィンの他面
と当接して、隣り合うフィン同士の間隔を規制する規制
部材が突設されていることを特徴とするものである。[0008] The second means is the first means,
On one surface of the radiating fin, a regulating member that contacts the other surface of the adjacent radiating fin and regulates the interval between the adjacent fins is provided in a protruding manner.
【０００９】[0009]
【作用】このような構成によれば、放熱フィンの通風方
向風上側端部の着霜を防止することが可能である。According to this structure, it is possible to prevent frost formation on the windward end of the radiation fin in the ventilation direction.
【００１０】[0010]
【実施例】以下、この発明の一実施例を図面を参照して
説明する。図２は、この発明の熱交換器の全体図であ
る。この熱交換器は、例えば室外側の熱交換器として用
いられるものである。An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is an overall view of the heat exchanger of the present invention. This heat exchanger is used, for example, as an outdoor heat exchanger.
【００１１】図中１は熱交換パイプである。この熱交換
パイプ１は偏平形状をなし、内部は仕切られて複数の通
路１ａ…が形成されている。この熱交換パイプ１は、幅
方向を略水平にして配置され、かつ図に矢印（イ）で示
す通風方向と直交する縦方向に複数本並列に設けられて
いる。In FIG. 1, reference numeral 1 denotes a heat exchange pipe. The heat exchange pipe 1 has a flat shape, and is internally partitioned to form a plurality of passages 1a. A plurality of the heat exchange pipes 1 are arranged with the width direction being substantially horizontal, and a plurality of the heat exchange pipes 1 are provided in parallel in a vertical direction orthogonal to a ventilation direction shown by an arrow (a) in the figure.
【００１２】また、この熱交換パイプ１は水平面内で略
コの字状に折曲され、その両端部は立設された第１、第
２のヘッダ２、３の側面に接続されている。すなわち、
冷媒は、まず上記第１、第２のヘッダ２、３にそれぞれ
供給され、この第１、第２のヘッダ２、３から各熱交換
パイプ１に分流するようになっている。The heat exchange pipe 1 is bent in a substantially U-shape in a horizontal plane, and both ends thereof are connected to the side surfaces of the first and second headers 2 and 3 erected. That is,
The refrigerant is first supplied to the first and second headers 2 and 3, respectively, and is diverted from the first and second headers 2 and 3 to each heat exchange pipe 1.
【００１３】また、上記複数本の熱交換パイプ１…に
は、高さ方向に長尺なる帯板状の放熱フィン５が、通風
方向（イ）と平行な状態で同方向に複数枚積層されて組
み合わされている。次に、この放熱フィン５の構成につ
いて図１を参照して説明する。On the plurality of heat exchange pipes 1, a plurality of strip-shaped radiating fins 5 long in the height direction are stacked in the same direction in parallel with the ventilation direction (a). Are combined. Next, the configuration of the radiation fins 5 will be described with reference to FIG.
【００１４】この放熱フィン５は、厚さ約０．２ｍｍ程
度のアルミニウム製の帯状の薄板である。この放熱フィ
ン５には、長手方向に沿って、上記熱交換パイプ１が設
けられる間隔ｅで、この放熱フィン５が挿入される挿入
孔６…が複数個形成されている。The heat radiation fins 5 are thin aluminum strips having a thickness of about 0.2 mm. A plurality of insertion holes 6 into which the heat radiation fins 5 are inserted are formed in the heat radiation fins 5 at intervals e where the heat exchange pipes 1 are provided along the longitudinal direction.
【００１５】この挿入孔６…は、上記放熱フィン１の通
風方向風下側の一端に開放し、この開放側から図に矢印
（ロ）で示すように熱交換パイプ１が挿入されるように
なっている。したがって、この放熱フィン１を同方向に
複数枚積層保持し、上記各挿入孔６…に各熱交換パイプ
５…を挿入することで、図２に示すように上記放熱フィ
ン５と熱交換パイプ１は組み合わされる。なお、この挿
入孔６の周部は図１（ａ）、（ｂ）に示すように立ち上
げ加工され、上記熱交換パイプ１の外周面を保持する保
持片７となっている。The insertion holes 6 are opened at one end of the radiating fin 1 on the leeward side in the ventilation direction, and the heat exchange pipe 1 is inserted from the open side as shown by an arrow (b) in the figure. ing. Therefore, a plurality of the radiating fins 1 are stacked and held in the same direction, and each of the heat exchange pipes 5 is inserted into each of the insertion holes 6 as shown in FIG. Are combined. 1A and 1B, the peripheral portion of the insertion hole 6 is formed into a holding piece 7 for holding the outer peripheral surface of the heat exchange pipe 1.
【００１６】一方、隣り合う挿入孔６、６間には、この
放熱フィン５の長手方向に沿うスリット８…が所定間隔
で複数本設けられている。このスリット８…により分割
されたフィン部９は、図１（ｂ）に示すように、交互に
反対側に突出するように成形されている。これにより、
このフィン部９に空気を有効に接触させ、熱交換性能を
向上させるようになっている。On the other hand, a plurality of slits 8 along the longitudinal direction of the radiating fins 5 are provided at predetermined intervals between adjacent insertion holes 6. As shown in FIG. 1B, the fin portions 9 divided by the slits 8 are formed so as to alternately protrude to the opposite side. This allows
The air is effectively brought into contact with the fins 9 to improve the heat exchange performance.
【００１７】また、図に１０で示すものは、隣合う放熱
フィン５との間隔を規制するためにこの放熱フィン５の
一面側に立ち上げ加工された間隔規制部（規制部材）で
ある。この規制部１０により、上記放熱フィン５を積層
した状態でも、隣り合う放熱フィン５…同士は接触する
ことなく常に一定の間隔が保たれるように規制されるよ
うになっている。Further, what is indicated by 10 in the figure is an interval regulating portion (regulating member) which is formed on one side of the radiating fin 5 so as to regulate the interval between the adjacent radiating fins 5. By the restricting portion 10, even when the radiating fins 5 are stacked, the adjacent radiating fins 5 are regulated so as to be always kept at a constant interval without contacting each other.
【００１８】また、上記放熱フィン５の全幅ｗ2 と、こ
の放熱フィン５の上記熱交換パイプ１の設けられた幅
（放熱フィン５の風下側端から上記スリット８が設けら
れた範囲）ｗ1 の比は、ｗ2 ／ｗ1 ＝１．２〜１．９と
なるように形成されている。すなわち、この放熱フィン
５の風上側端部５ａは、上記熱交換パイプ１の風上側端
から所定量風上側に延出されて設けられている。The total width w 2 of the radiating fins 5 and the width of the radiating fins 5 where the heat exchange pipe 1 is provided (the range from the leeward end of the radiating fins 5 to the slit 8) w 1 Are formed such that w 2 / w 1 = 1.2 to 1.9. In other words, the windward end 5a of the radiation fin 5 extends from the windward end of the heat exchange pipe 1 by a predetermined amount to the windward side.
【００１９】次に、上述のように放熱フィン５の風上側
端部５ａを上記熱交換パイプ１から所定幅延出させ、か
つｗ2 ／ｗ1 ＝１．２〜１．９と設定した理由について
説明する。まず、風上側端部５ａを熱交換パイプ１から
所定幅延出させた理由は、以下のとうりである。Next, as described above, the reason why the windward end portion 5a of the radiation fin 5 extends a predetermined width from the heat exchange pipe 1 and w 2 / w 1 = 1.2 to 1.9 is set. Will be described. First, the reason why the windward end portion 5a is extended from the heat exchange pipe 1 by a predetermined width is as follows.
【００２０】すなわち、この室外側の熱交換器は、蒸発
器として用いられるために、上記放熱フィン５の表面で
冷却された水蒸気が凝縮しドレンが発生する。しかし、
風上側端部５ａは上下方向に連続しているので、放熱フ
ィン１の表面で凝縮したドレンは、その部分で着霜する
前にこの部分を伝って放熱フィン１の下側に排出されや
すい。このため、着霜防止に有効である。That is, since the outdoor heat exchanger is used as an evaporator, the water vapor cooled on the surface of the radiation fin 5 is condensed to generate drain. But,
Since the windward end 5a is continuous in the vertical direction, the drain condensed on the surface of the radiating fin 1 is liable to be discharged to the lower side of the radiating fin 1 along this portion before frosting at that portion. Therefore, it is effective in preventing frost formation.
【００２１】また、外気が最初に接触する放熱フィン１
の風上側の端部に特にドレンが発生しやすい。図３に示
すように、仮に風上側端部５ａ´の幅が狭い場合には、
図３にＡ示すように、発生したドレンがこの風上側端部
５ａ´に着霜し、通風を妨げることとなる。Further, the radiation fin 1 to which the outside air comes into contact first
In particular, drainage is likely to occur at the windward end. As shown in FIG. 3, if the width of the windward end 5a 'is small,
As shown in FIG. 3A, the generated drain is frosted on the windward side end 5a ', which impedes ventilation.
【００２２】しかし、この発明のように風上側端部５ａ
の幅を大きくとることで、この部分の温度は、熱交換パ
イプ１の温度と比較して高くなる。したがって、この部
分に集中して着霜することは少なくなり、着霜は放熱フ
ィン５の全幅に亘って平均化される。このことにより、
放熱フィン５…間を風が有効に通過するようになり通風
抵抗が低下することが少なく熱交換能力が維持されると
考えられる。次に、この比ｗ2 ／ｗ1 を決定するために
行った実験の結果について説明する。However, as in the present invention, the windward end 5a
The temperature of this portion becomes higher than the temperature of the heat exchange pipe 1 by increasing the width of. Therefore, frost is less concentrated on this portion, and the frost is averaged over the entire width of the radiation fin 5. This allows
It is considered that the wind effectively passes between the radiating fins 5..., And that the ventilation resistance is less likely to decrease and the heat exchange capacity is maintained. Following describes the results of experiments conducted to determine the ratio w 2 / w 1.
【００２３】なお、実験に使用した空気調和機は、定格
暖房能力４．２ＫＷのものと、２℃定格暖房能力４．２
ＫＷのもので、上記ｗ1 を１６ｍｍに固定し、放熱フィ
ン５の積層ピッチは１．２ｍｍとする。The air conditioner used in the experiment had a rated heating capacity of 4.2 KW and a rated heating capacity of 2 ° C. 4.2.
Intended KW, the w 1 is fixed to 16 mm, stacking pitch of the heat radiating fins 5 is set to 1.2 mm.
【００２４】図４（ａ）、（ｂ）に示すグラフは、縦軸
にｗ2 ／ｗ1 ＝１．１５の場合の暖房能力を１００％と
した場合の暖房能力比率をとり、横軸に比ｗ2 ／ｗ1 を
とったものである。In the graphs shown in FIGS. 4A and 4B, the ordinate indicates the heating capacity ratio when the heating capacity when w 2 / w 1 = 1.15 is 100%, and the abscissa indicates the heating capacity ratio. The ratio w 2 / w 1 is obtained.
【００２５】ｗ2 ／ｗ1 ＝１．１５の付近では、風上側
端部５ａの延出量が少ないため、この部分の温度は熱交
換パイプ１の温度とあまり変わらず低温となる。このた
め、この分に着霜が生じ通風が妨げられるために暖房能
力はあまり良くない。また、ｗ2 ／ｗ1 ＝２．０の付近
では、放熱フィン５の全幅ｗ2 が大きくなる（３２ｍ
ｍ）が、かえって通風抵抗が増え暖房能力は低下する。In the vicinity of w 2 / w 1 = 1.15, since the amount of extension of the windward end 5a is small, the temperature of this portion is not so different from the temperature of the heat exchange pipe 1 and is low. For this reason, frost is formed in this part and ventilation is obstructed, and the heating capacity is not so good. In the vicinity of w 2 / w 1 = 2.0, the total width w 2 of the radiation fin 5 is large (32 m).
m), on the contrary, the ventilation resistance increases and the heating capacity decreases.
【００２６】一方、ｗ2 ／ｗ1 ＝１．２〜１．９の付近
では、このような欠点がなく、放熱フィン５の面積増加
が熱交換に有効に働くと共に、風上側端部５ａの温度が
熱交換パイプ１よりも高くなるから着霜がこの部分に集
中せず均一化する。この結果として暖房能力が向上す
る。なお、この測定は、騒音が一定になるように、送風
量を調整した結果である。したがって、実際に用いる場
合にも同様の結果を奏するものである。On the other hand, in the vicinity of w 2 / w 1 = 1.2 to 1.9, there is no such a defect, and the increase in the area of the radiating fins 5 works effectively for heat exchange. Since the temperature is higher than that of the heat exchange pipe 1, the frost is not concentrated on this portion and is uniform. As a result, the heating capacity is improved. In addition, this measurement is a result of adjusting the air blowing amount so that the noise becomes constant. Therefore, a similar result is obtained when actually used.
【００２７】ただし、図５に示すように、空気側熱伝達
率と通風抵抗の上昇を調べた場合には、経済的にはｗ2
／ｗ1 ＝１．２〜１．６程度にしておくほうが良好であ
るこのような構成によれば、以下に説明する効果があ
る。まず、第１には、上述したように、風上側端部に集
中して着霜することを防止できる結果、熱交換能力の高
い熱交換器を得ることができる効果がある。However, as shown in FIG. 5, when examining the increase in the air side heat transfer coefficient and the ventilation resistance, economically, w 2
According to such a configuration in which it is better to set / w 1 = about 1.2 to 1.6, the following effects can be obtained. First, as described above, as described above, it is possible to prevent frost from being concentrated on the windward side end, and as a result, there is an effect that a heat exchanger having a high heat exchange capacity can be obtained.
【００２８】第２に、上記風上側端部５ａに比較して風
の絶対的湿度が低下する放熱フィン５の中央部にスリッ
ト８…を設け、フィン部９を形成したことにより、この
フィン部９に着霜することは少なくなるので、放熱フィ
ン５の性能を良好に保つことができる。Secondly, a slit 8 is provided at the center of the radiating fin 5 where the absolute humidity of the wind is lower than that of the windward end 5a, and the fin 9 is formed. 9 is less likely to be frosted, so that the performance of the radiation fins 5 can be kept good.
【００２９】第３に、図２に示すように熱交換器をコの
字形状に折曲する場合、折曲の内側に熱交換パイプ１…
を配置しているので、折曲時に折曲治具により放熱フィ
ン５…を破壊することが少なくなる。第４に、放熱フィ
ン５に間隔規制部１０を突設したので、隣合う放熱フィ
ン５、５同士が接触することが防止され、熱交換性能を
維持することができる。なお、この発明は、上記一実施
例に限定されるものではなく発明の要旨を変更しない範
囲で種々変形可能である。Third, as shown in FIG. 2, when the heat exchanger is bent into a U-shape, the heat exchange pipes 1 are provided inside the bend.
Are disposed, so that the radiation fins 5 are less likely to be broken by the bending jig at the time of bending. Fourth, since the space regulating portion 10 protrudes from the heat radiation fins 5, the adjacent heat radiation fins 5, 5 are prevented from contacting each other, and the heat exchange performance can be maintained. The present invention is not limited to the above-described embodiment, but can be variously modified without changing the gist of the invention.
【００３０】例えば、上記一実施例では、上記風上側端
部５ａは平面状としていたが図６（ａ）、（ｂ）に５ａ
´´で示すように、波状に形成するようにしても良い。
このような構成によれば、特に通過する空気が湿り空気
の場合に、ドレンを有効に放熱フィン１０の下側に排出
することができるので有効である。For example, in the above-described embodiment, the windward end portion 5a is flat, but FIG. 6 (a) and FIG.
As shown by "", it may be formed in a wavy shape.
According to such a configuration, particularly when the passing air is humid air, the drain can be effectively discharged to the lower side of the radiation fins 10, which is effective.
【００３１】[0031]
【発明の効果】以上述べたように、この発明の第１の構
成は、幅方向を通風方向と略平行にして配置され、内部
に熱交換媒体が流通する偏平状の熱交換パイプと、通風
方向風下側に開放する挿入孔を有しこの挿入孔に上記熱
交換パイプを挿入することでこの熱交換パイプと直交す
る状態で組み合わされる帯板状の放熱フィンとを具備
し、上記放熱フィンの上記熱交換パイプが設けられた部
分の通風方向の幅ｗ1 と上記放熱フィンの通風方向の全
幅ｗ2 の比ｗ2 ／ｗ1 を１．２〜１．９としたものであ
る。As described above, the first structure of the present invention comprises a flat heat exchange pipe, which is disposed substantially parallel to the ventilation direction in the width direction and through which a heat exchange medium flows, A strip-shaped radiating fin combined with the heat exchange pipe in a state orthogonal to the heat exchange pipe by inserting the heat exchange pipe into the insertion hole, and those where the ratio w 2 / w 1 ventilation direction of the total width w 2 of width w 1 and the radiating fins of the ventilation direction of the portion in which the heat exchange pipe is provided as 1.2 to 1.9.
【００３２】第２の構成は、上記第１の構成において、
上記放熱フィンの一面には、隣り合う放熱フィンの他面
と当接して、隣り合うフィン同士の間隔を規制する規制
部材が突設されているものである。The second configuration is the same as the first configuration, except that
On one surface of the heat radiating fin, a regulating member which comes into contact with the other surface of the adjacent heat radiating fin and regulates an interval between the adjacent fins is provided in a protruding manner.
【００３３】このような構成によれば、第１に放熱フィ
ンの風上側端部に集中して着霜することが有効に防止さ
れるから、通風が妨げられず、熱交換能力を維持するこ
とができる効果がある。また、折曲時に折曲治具により
放熱フィンを破壊することなしに折曲でき、熱交換器を
コンパクトに形成することができる。また、隣り合う放
熱フィンが接触することが防止できるので、熱交換能力
を維持することができる効果がある。According to such a configuration, firstly, since frost is effectively prevented from concentrating on the windward end of the radiating fins, ventilation is not hindered and the heat exchange capacity is maintained. There is an effect that can be. Also, at the time of bending, use a bending jig
Can be bent without destroying the radiation fins,
It can be formed compact. Further, since the adjacent heat radiation fins can be prevented from contacting with each other, there is an effect that the heat exchange ability can be maintained.
【図１】（ａ）は、この発明の一実施例の要部を示す側
面図、（ｂ）はＩ−Ｉ線に沿う横断面図。FIG. 1A is a side view showing a main part of an embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along a line II.
【図２】同じく、全体斜視図。FIG. 2 is an overall perspective view.
【図３】同じく、着霜を説明する説明図。FIG. 3 is an explanatory diagram illustrating frost formation.
【図４】（ａ）は、同じく、２℃暖房能力の実験結果を
示すグラフ、（ｂ）は、定格暖房能力の実験結果を示す
グラフ。FIG. 4 (a) is a graph showing the experimental result of the heating capacity at 2 ° C., and FIG. 4 (b) is a graph showing the experimental result of the rated heating capacity.
【図５】（ａ）は、同じく、空気側熱伝達率の上昇を示
すグラフ、（ｂ）は、通風抵抗の上昇を示すグラフFIG. 5A is a graph showing an increase in the air-side heat transfer coefficient, and FIG. 5B is a graph showing an increase in the ventilation resistance.
【図６】（ａ）は、他の実施例を示す側面図、（ｂ）
は、同じくVI−VI線に沿う横断面図。FIG. 6A is a side view showing another embodiment, and FIG.
Is a cross-sectional view along the line VI-VI.
１…熱交換パイプ、５…放熱フィン、（イ）…通風方
向。1 ... heat exchange pipe, 5 ... radiation fin, (a) ... ventilation direction.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F28F 17/00 F25B 39/02 F28D 1/04 - 1/053 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) F28F 17/00 F25B 39/02 F28D 1/04-1/053
Claims (2)
れ、内部に熱交換媒体が流通する偏平状の熱交換パイプ
と、通風方向風下側に開放する挿入孔を有しこの挿入孔
に上記熱交換パイプを挿入することでこの熱交換パイプ
と直交する状態で組み合わされる帯板状の放熱フィンと
を具備し、上記放熱フィンの上記熱交換パイプが設けら
れた部分の通風方向の幅ｗ１と上記放熱フィンの通風方
向の全幅ｗ２の比ｗ２／ｗ１を１．２〜１．９とするこ
とにより、上記放熱フィンの風上側端部を上記熱交換パ
イプの風上側端から０．２ｗ１〜０．９ｗ１だけ風上側
に延出するとともに、 前記挿入孔の開放側が折曲の内側になるように少なくと
も１箇所を折曲形成 したことを特徴とする熱交換器。1. A flat heat exchange pipe in which a heat exchange medium flows is disposed substantially parallel to the ventilation direction in the width direction, and an insertion hole which opens to the leeward side in the ventilation direction is provided in the insertion hole. A strip-shaped radiation fin combined with the heat exchange pipe in a state orthogonal to the heat exchange pipe by inserting the heat exchange pipe, and a width w of a portion of the radiation fin provided with the heat exchange pipe in a ventilation direction w 1 and the ratio w 2 / w 1 ventilation direction of the total width w 2 of the heat radiation fins by a 1.2 to 1.9, the upwind-side ends of the heat radiating fin from the windward side end of the heat exchange pipe with extending 0.2w 1 ~0.9w 1 only the windward side, the open side of the insertion hole is the so small on the inside of the bent
A heat exchanger characterized in that one portion is bent .
熱フィンの他面と当接して、隣り合うフィン同士の間隔
を規制する規制部材が突設されていることを特徴とする
請求項１記載の熱交換器。2. The radiating fin is provided on one surface thereof with a restricting member which is in contact with the other surface of the adjacent radiating fin and restricts the interval between the adjacent fins. The heat exchanger as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27309692A JP3264525B2 (en) | 1992-10-12 | 1992-10-12 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27309692A JP3264525B2 (en) | 1992-10-12 | 1992-10-12 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06123587A JPH06123587A (en) | 1994-05-06 |
| JP3264525B2 true JP3264525B2 (en) | 2002-03-11 |
Family
ID=17523089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27309692A Expired - Fee Related JP3264525B2 (en) | 1992-10-12 | 1992-10-12 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3264525B2 (en) |
Cited By (2)
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|---|---|---|---|---|
| JP2014156990A (en) * | 2013-02-18 | 2014-08-28 | Mitsubishi Electric Corp | Heat exchanger of air conditioner |
| US10578375B2 (en) * | 2015-09-21 | 2020-03-03 | Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. | Fin and heat exchanger having same |
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|---|---|---|---|---|
| JPH0829016A (en) * | 1994-07-19 | 1996-02-02 | Nippondenso Co Ltd | Outdoor heat exchanger for heat pump |
| JPH109787A (en) * | 1996-04-25 | 1998-01-16 | Denso Corp | Plate fin type heat exchanger |
| JP4329096B2 (en) * | 2003-11-27 | 2009-09-09 | 株式会社ティラド | Heat exchanger and manufacturing method thereof |
| AU2012208124B2 (en) * | 2011-01-21 | 2015-05-14 | Daikin Industries, Ltd. | Heat exchanger and air conditioner |
| WO2015097761A1 (en) * | 2013-12-24 | 2015-07-02 | 三菱電機株式会社 | Heat exchanger and outdoor unit provided with this heat exchanger |
| JP2015132468A (en) * | 2015-04-22 | 2015-07-23 | 三菱電機株式会社 | Heat exchanger of air conditioner |
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| EP3521747B1 (en) * | 2016-09-29 | 2021-06-23 | Daikin Industries, Ltd. | Heat exchanger and air conditioner |
| JP2019011923A (en) * | 2017-06-30 | 2019-01-24 | ダイキン工業株式会社 | Heat exchanger |
| JP7092987B2 (en) * | 2018-01-22 | 2022-06-29 | ダイキン工業株式会社 | Indoor heat exchanger and air conditioner |
| JP2019152372A (en) | 2018-03-02 | 2019-09-12 | 日立ジョンソンコントロールズ空調株式会社 | Heat exchanger, outdoor unit, refrigeration cycle device, and manufacturing method of heat exchanger |
| JPWO2020110301A1 (en) * | 2018-11-30 | 2021-05-20 | 三菱電機株式会社 | Refrigeration cycle equipment |
| JP6881550B2 (en) * | 2019-11-06 | 2021-06-02 | ダイキン工業株式会社 | Heat exchanger |
| CN117553348B (en) * | 2024-01-11 | 2024-04-26 | 深圳市台冷空调设备有限公司 | Clamping type fan coil |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0379058U (en) * | 1989-12-04 | 1991-08-12 | ||
| JPH04177091A (en) * | 1990-11-08 | 1992-06-24 | Toshiba Corp | Heat exchanger |
| JPH0497216U (en) * | 1991-01-18 | 1992-08-24 |
-
1992
- 1992-10-12 JP JP27309692A patent/JP3264525B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014156990A (en) * | 2013-02-18 | 2014-08-28 | Mitsubishi Electric Corp | Heat exchanger of air conditioner |
| US10578375B2 (en) * | 2015-09-21 | 2020-03-03 | Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. | Fin and heat exchanger having same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06123587A (en) | 1994-05-06 |
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