JP2513324Y2 - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JP2513324Y2 JP2513324Y2 JP1989064020U JP6402089U JP2513324Y2 JP 2513324 Y2 JP2513324 Y2 JP 2513324Y2 JP 1989064020 U JP1989064020 U JP 1989064020U JP 6402089 U JP6402089 U JP 6402089U JP 2513324 Y2 JP2513324 Y2 JP 2513324Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat transfer
- flat heat
- transfer tube
- additional
- heat exchanger
- 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 - Lifetime
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、熱交換器に関し、特に自動車用冷房装置に
使用される凝縮器のように狭いスペースへ設置され、高
い熱交換効率を要求される熱交換器に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a heat exchanger, and in particular, it is installed in a narrow space such as a condenser used in a vehicle air conditioner, and is required to have high heat exchange efficiency. Related to the heat exchanger.
［従来の技術］ 第５図、第６図は従来の凝縮器としての熱交換器の一
例を示す。この熱交換器は、互いに平行な一対のヘッダ
ーパイプ１、２間に互いに平行な複数の偏平伝熱管３を
夫々接続している。偏平伝熱管３の相互間には放熱を促
進する放熱フィン４が配されている。[Prior Art] FIGS. 5 and 6 show an example of a conventional heat exchanger as a condenser. In this heat exchanger, a plurality of parallel flat heat transfer tubes 3 are connected between a pair of header pipes 1 and 2 which are parallel to each other. Radiating fins 4 for promoting heat radiation are arranged between the flat heat transfer tubes 3.
一方のヘッダーパイプ１の端部には、この熱交換器内
に冷媒を導入するための入口管５が接続されている。他
方のヘッダーパイプ２の端部には、この熱交換器で熱交
換された冷媒を熱交換器の外部へ導出するための出口管
６が接続されている。さらにヘッダーパイプ１及び２の
内部は、第６図に示すように、仕切板７、８等にて軸方
向で複数の空間に仕切られている。この結果、入口管５
に導入された冷媒は、ヘッダーパイプ１、２及び偏平伝
熱管３を通して蛇行状に流れ、熱交換された上で出口管
６から流出する。この熱交換器によれば仕切板７、８の
位置により、冷媒の流れにおける上流部分と下流部分と
で冷媒通路の断面積（合計での流路面積）を簡単に異な
らしめることができる。なお第５図の熱交換器では、冷
媒が上流部分では比較的多数本の偏平伝熱管を通って流
れ、また下流部分では比較的小数本の偏平伝熱管を通っ
て流れるように、仕切板７、８はその位置を選定されて
いる。An inlet pipe 5 for introducing a refrigerant into the heat exchanger is connected to one end of the header pipe 1. An outlet pipe 6 is connected to an end of the other header pipe 2 for discharging the refrigerant heat-exchanged by the heat exchanger to the outside of the heat exchanger. Further, the interiors of the header pipes 1 and 2 are partitioned into a plurality of spaces in the axial direction by partition plates 7 and 8 as shown in FIG. As a result, the inlet pipe 5
The refrigerant introduced into the pipe flows meanderingly through the header pipes 1 and 2 and the flat heat transfer pipe 3, is heat-exchanged, and then flows out from the outlet pipe 6. According to this heat exchanger, the sectional area (total flow passage area) of the refrigerant passage can be easily made different between the upstream portion and the downstream portion in the flow of the refrigerant depending on the positions of the partition plates 7 and 8. In the heat exchanger of FIG. 5, the partition plate 7 is designed so that the refrigerant flows through a relatively large number of flat heat transfer tubes in the upstream portion and through a relatively small number of flat heat transfer tubes in the downstream portion. , 8 have their positions selected.
［考案が解決しようとする課題］ この種の熱交換器は自動車用空調装置の凝縮器として
使用され得る。その場合、この熱交換器では冷凍サイク
ル（冷凍回路）のコンプレッサ（圧縮機）で圧縮され、
高温高圧とされたガス状の冷媒（熱交換媒体）は、入口
管１から直接ヘッダーパイプ１に入り、仕切板７に仕切
られたヘッダーパイプ１から複数の偏平伝熱管３を経
て、この熱交換器の外部に吹き付けられる空気等により
偏平伝熱管３やフィン４の表面を通して、冷却されてヘ
ッダーパイプ２内に入り混合されて、再度複数の偏平伝
熱管３を経て、再度タンク１に流入する。この時に入口
管５からタンク１に入る熱交換媒体の高温の熱がタンク
１自体及び仕切板７を介して伝導し、一旦冷却されてき
た冷媒（熱交換媒体）が再加熱されることになる。よっ
て熱交換効率が良くないことになる。[Problems to be Solved by the Invention] This type of heat exchanger can be used as a condenser of an air conditioner for an automobile. In that case, in this heat exchanger, it is compressed by the compressor (compressor) of the refrigeration cycle (refrigeration circuit),
The high-temperature and high-pressure gaseous refrigerant (heat exchange medium) enters the header pipe 1 directly from the inlet pipe 1, passes from the header pipe 1 partitioned by the partition plate 7 to the plurality of flat heat transfer pipes 3, and exchanges the heat. It is cooled by the air blown to the outside of the vessel through the surfaces of the flat heat transfer tubes 3 and the fins 4, and is cooled and mixed into the header pipe 2, mixed again, and again flows into the tank 1 through the plurality of flat heat transfer tubes 3. At this time, the high-temperature heat of the heat exchange medium entering the tank 1 from the inlet pipe 5 is conducted through the tank 1 itself and the partition plate 7, and the once cooled refrigerant (heat exchange medium) is reheated. . Therefore, the heat exchange efficiency is not good.
それ故に、本考案の目的は限られた空間内で熱交換効
率の良い熱交換器を提供することにある。Therefore, an object of the present invention is to provide a heat exchanger with high heat exchange efficiency in a limited space.
［課題を解決するための手段］ 本考案によれば、互いに平行な一対のヘッダーパイプ
と、該一対のヘッダーパイプ間に夫々接続された互いに
平行な複数の偏平伝熱管と、該偏平伝熱管の周囲に配し
た放熱フィンとを有する熱交換器において、上記複数の
偏平伝熱管のうち最外側部の偏平伝熱管の隣に配され、
各偏平伝熱管よりも通路断面積の大きい付加偏平伝熱管
と、該付加偏平伝熱管の周囲に配した付加放熱フィンと
を備え、上記付加偏平伝熱管の一端に配管接続部材を設
け、他端を上記ヘッダーパイプの端部に接続したことを
特徴とする熱交換器が得られる。[Means for Solving the Problems] According to the present invention, a pair of header pipes that are parallel to each other, a plurality of parallel flat heat transfer tubes that are respectively connected between the pair of header pipes, and a flat heat transfer tube In a heat exchanger having heat dissipating fins arranged around, arranged adjacent to the outermost flat heat transfer tube among the plurality of flat heat transfer tubes,
An additional flat heat transfer tube having a passage cross-sectional area larger than that of each flat heat transfer tube, and an additional radiating fin arranged around the additional flat heat transfer tube. A pipe connecting member is provided at one end of the additional flat heat transfer tube, and the other end is provided. Is connected to the end portion of the header pipe to obtain a heat exchanger.
［作用］ 本考案が、熱交換器である凝縮器に使用された時など
には、接続ユニット12を有する付加偏平伝熱管11が冷媒
（熱交換媒体）を導入するための入口管に相当する。[Operation] When the present invention is used in a condenser which is a heat exchanger, the additional flat heat transfer tube 11 having the connection unit 12 corresponds to an inlet tube for introducing a refrigerant (heat exchange medium). .
そして冷媒回路中において、圧縮機で圧縮された熱交
換媒体が、高温高圧の気体で、接続ユニット12を経て付
加偏平伝熱管11を通過する時に本考案の熱交換器の外部
において、吹き当てられた空気により付加偏平伝熱管11
や付加放熱フィン13、14表面から熱を奪われ（熱交換さ
れ）、冷やされてからヘッダーパイプ１に流入し、以後
はヘッダーパイプ１、２内の仕切板（図示せず）の作用
もあって、熱交換器内を蛇行しつつ流れ空気と熱交換を
して凝縮作用を受け熱交換媒体は気液混合相となって出
口管から出て行く。Then, in the refrigerant circuit, the heat exchange medium compressed by the compressor is sprayed as a high-temperature and high-pressure gas outside the heat exchanger of the present invention when passing through the additional flat heat transfer tube 11 via the connection unit 12. Flat heat transfer tube 11
The heat is taken from the surfaces of the additional heat radiation fins 13 and 14 (heat is exchanged), cooled and then flows into the header pipe 1, and thereafter, there is also a function of a partition plate (not shown) in the header pipes 1 and 2. Then, while meandering in the heat exchanger, it exchanges heat with the flowing air and undergoes a condensation action, and the heat exchange medium becomes a gas-liquid mixed phase and exits from the outlet pipe.
すなわち本考案では、ヘッダーパイプ１内に入る前に
放熱を促進する付加伝熱フィンを有する付加偏平伝熱管
内で高温高圧の気体を予め冷却してから、ヘッダーパイ
プ１に流入させる。That is, in the present invention, the high-temperature and high-pressure gas is cooled in advance in the additional flat heat transfer tube having the additional heat transfer fins for promoting heat dissipation before entering the header pipe 1, and then is allowed to flow into the header pipe 1.
［実施例］ 第１図は本考案の第１実施例による熱交換器を示す。
第５図の熱交換器５と同様な部分には同じ符号を付して
説明を省略する。[Embodiment] FIG. 1 shows a heat exchanger according to a first embodiment of the present invention.
The same parts as those of the heat exchanger 5 shown in FIG.
第１図の熱交換器は自動車用冷房装置の凝縮器として
使用されるもので、複数の偏平伝熱管３のうち最外側部
の偏平伝熱管の隣に配された付加偏平伝熱管11を備えて
いる。付加偏平伝熱管11は一端をヘッダーパイプ１の一
端近傍部分に接続され、偏平伝熱管３と平行にその途中
まで延出している。付加偏平伝熱管11の他端には接続ユ
ニット12が結合されている。接続ユニット12は冷媒を導
入するための部分である。The heat exchanger shown in FIG. 1 is used as a condenser of an automobile air conditioner, and includes an additional flat heat transfer tube 11 arranged next to the outermost flat heat transfer tube of the plurality of flat heat transfer tubes 3. ing. One end of the additional flat heat transfer pipe 11 is connected to a portion near one end of the header pipe 1 and extends in parallel with the flat heat transfer pipe 3 to the middle thereof. A connection unit 12 is coupled to the other end of the additional flat heat transfer tube 11. The connection unit 12 is a part for introducing a refrigerant.
付加偏平伝熱管11の周囲にもこれを挟むように放熱を
促進する付加放熱フィン13、14が備えられている。付加
放熱フィン13、14も偏平伝熱管３間に備えた放熱フィン
４と同様にコルゲートフィンである。Around the additional flat heat transfer tube 11, additional heat radiation fins 13 and 14 are provided so as to sandwich the flat heat transfer tube 11 so as to sandwich it. The additional radiating fins 13 and 14 are also corrugated fins like the radiating fins 4 provided between the flat heat transfer tubes 3.
偏平伝熱管３は第２図に示すように第１の所定厚さt1
を有している。したがって偏平伝熱管３の内部の複数の
通路の合計断面積（合計の流路面積）、即ち、通路断面
積は比較的小さい。The flat heat transfer tube 3 has a first predetermined thickness t 1 as shown in FIG.
have. Therefore, the total cross-sectional area (total flow passage area) of the plurality of passages inside the flat heat transfer tube 3, that is, the passage cross-sectional area is relatively small.
一方、付加偏平伝熱管11は第３図に示すように第２の
所定厚さt2を有している。第２の所定厚さt2は第１の所
定厚さt1よりも大きい。したがって付加偏平伝熱管11の
通路断面積は比較的、即ち、偏平伝熱管３の通路断面積
よりも大きくなっている。On the other hand, the additional flat heat transfer tube 11 has a second predetermined thickness t 2 as shown in FIG. The second predetermined thickness t 2 is larger than the first predetermined thickness t 1 . Therefore, the passage cross-sectional area of the additional flat heat transfer tube 11 is relatively large, that is, larger than the passage cross-sectional area of the flat heat transfer tube 3.
通常、第６図に示すように偏平伝熱管３は複数本で各
々の通路群15、16、17を形成させ、回路内の圧力損失を
低く抑えている。しかしながら、１本で冷媒通路を形成
する付加偏平伝熱管11を偏平伝熱管３と同様あるいは小
さな通路面積で形成することは、異常に高い冷媒通路側
での圧力損失を生じることになる（ひいては熱交換効率
を悪くする）。そこで付加偏平伝熱管11の通路面積は、
偏平伝熱管３の通路面積よりも大きくしているのであ
る。Normally, as shown in FIG. 6, a plurality of flat heat transfer tubes 3 form respective passage groups 15, 16 and 17 to keep the pressure loss in the circuit low. However, if the additional flat heat transfer tube 11 forming a single refrigerant passage is formed in the same or small passage area as the flat heat transfer tube 3, an abnormally high pressure loss on the refrigerant passage side will occur (and eventually Exchange efficiency deteriorates). Therefore, the passage area of the additional flat heat transfer tube 11 is
It is made larger than the passage area of the flat heat transfer tube 3.
冷媒は接続ユニット12から付加偏平伝熱管11に導入さ
れ、凝縮作用を受けて放熱する。この放熱は付加放熱フ
ィン13、14にて促進される（この熱交換器の外部に吹き
付けられる空気により冷やされ熱交換されるため）。さ
らにこの冷媒は付加偏平伝熱管11からヘッダーパイプ１
に流入し、以後は、ヘッダーパイプ１、２内の仕切板
（図示せず）の作用もあって第５図の熱交換器の場合と
同様に蛇行しつつ流れ、凝縮作用を受けて放熱する。The refrigerant is introduced from the connection unit 12 into the additional flat heat transfer tube 11, and receives the condensing action to radiate heat. This heat dissipation is promoted by the additional heat dissipation fins 13 and 14 (because it is cooled by the air blown outside the heat exchanger and heat is exchanged). In addition, this refrigerant flows from the additional flat heat transfer pipe 11 to the header pipe 1
Flow into the header pipes 1 and 2, and thereafter, there is a partition plate (not shown) in the header pipes 1 and 2 to flow meandering as in the case of the heat exchanger of FIG. .
第４図のように、付加放熱フィン13、14の厚み寸法
（フィン高さ）を互いに異ならしめてもよい。As shown in FIG. 4, the thickness dimensions (fin height) of the additional radiation fins 13 and 14 may be different from each other.
また付加放熱フィン13、14の少なくとも一方を、複数
の放熱フィン部品を端部（最外側部）の偏平伝熱管３と
付加偏平伝熱管11との間隔方向で重ね合わせた構造とし
てもよい。Further, at least one of the additional heat radiating fins 13 and 14 may have a structure in which a plurality of heat radiating fin components are superposed in the gap direction between the flat heat transfer tube 3 at the end (outermost part) and the additional flat heat transfer tube 11.
また同様な付加偏平伝熱管及び付加放熱フィンは冷媒
の入口側及び出口側の両方に備えられてもよい。Further, similar additional flat heat transfer tubes and additional radiating fins may be provided on both the inlet side and the outlet side of the refrigerant.
［考案の効果］ 以上説明したように、本考案による熱交換器は、ヘッ
ダーパイプ１に熱交換媒体を流入させる入口管が設けて
無く、一端部に配管接続部材を有し、且つ周囲に放熱促
進用の冷却フィンを設けた付加偏平伝熱管の他端部をヘ
ッダーパイプ１に接続させて、入口管の役目を果たさせ
るとともにヘッダーパイプ１に直接高温高圧の熱交換媒
体を流入させるのではなく、放熱促進用の冷却フィンを
有する付加偏平伝熱管内を熱交換媒体を通過させる時
に、一旦冷やしてからヘッダーパイプ１に流入させてい
る。これにより、熱交換器内を蛇行して流れている熱交
換媒体が対向するヘッダーパイプ２から偏平伝熱管に導
かれ冷やされ、再度ヘッダーパイプ１に流入した時に、
付加偏平伝熱管内を通る熱交換媒体の熱がヘッダーパイ
プ１や仕切板を伝わってくる熱量が小さいために、一旦
冷却された熱交換媒体が、再度暖められることは非常に
少なく熱交換効率が向上する。[Advantages of the Invention] As described above, the heat exchanger according to the present invention does not have the inlet pipe through which the heat exchange medium flows in the header pipe 1, has the pipe connecting member at one end, and radiates heat to the surroundings. The other end of the additional flat heat transfer tube provided with the cooling fins for promotion is connected to the header pipe 1 so as to serve as an inlet pipe and the heat exchange medium of high temperature and high pressure is directly flown into the header pipe 1. Instead, when the heat exchange medium is passed through the additional flat heat transfer tube having cooling fins for promoting heat dissipation, the heat exchange medium is once cooled and then allowed to flow into the header pipe 1. As a result, when the heat exchange medium that meanders in the heat exchanger is guided from the facing header pipe 2 to the flat heat transfer pipe and cooled, and flows into the header pipe 1 again,
Since the heat of the heat exchange medium passing through the additional flat heat transfer tube is small in the amount of heat transmitted through the header pipe 1 and the partition plate, the heat exchange medium once cooled is hardly reheated and the heat exchange efficiency is very low. improves.
しかも、付加偏平伝熱管の流路面積を偏平伝熱管の流
路面積よりも大きくすることにより、熱交換器内部の冷
媒流通抵抗を増大させず、熱交換効率を高めることがで
きる。したがってこの熱交換器は自動車用冷房装置に使
用される凝縮器のように狭いスペースへの設置を要求さ
れる場合に特に有利である。Moreover, by making the flow passage area of the additional flat heat transfer tube larger than the flow passage area of the flat heat transfer tube, it is possible to increase the heat exchange efficiency without increasing the refrigerant flow resistance inside the heat exchanger. Therefore, this heat exchanger is particularly advantageous when it is required to be installed in a narrow space such as a condenser used in a vehicle cooling system.
第１図は本考案の第１実施例による熱交換器の斜視図、
第２図は第１図の熱交換器の偏平伝熱管の横断面図、第
３図は同じく付加偏平伝熱管の横断面図、第４図は第１
図の熱交換器の変形例を示す斜視図、第５図は従来の熱
交換器の一例の斜視図、第６図は第５図の熱交換器の断
面図である。 １、２……ヘッダーパイプ、３……偏平伝熱管、４……
放熱フィン、５……入口管、６……出口管、７、８……
仕切板、11……付加偏平伝熱管、12……接続ユニット、
13、1414……付加放熱フィン、16、17、18……冷媒通路
群。FIG. 1 is a perspective view of a heat exchanger according to a first embodiment of the present invention,
2 is a cross-sectional view of the flat heat transfer tube of the heat exchanger of FIG. 1, FIG. 3 is a cross-sectional view of the additional flat heat transfer tube, and FIG.
FIG. 5 is a perspective view showing a modified example of the heat exchanger shown in FIG. 5, FIG. 5 is a perspective view of an example of a conventional heat exchanger, and FIG. 6 is a sectional view of the heat exchanger shown in FIG. 1, 2 ... Header pipe, 3 ... Flat heat transfer tube, 4 ...
Radiating fins, 5 ... inlet pipe, 6 ... outlet pipe, 7, 8 ...
Partition plate, 11 …… Additional flat heat transfer tube, 12 …… Connection unit,
13, 1414 …… Additional radiation fins, 16,17,18 …… Refrigerant passage group.
Claims (1)
一対のヘッダーパイプ間に夫々接続された互いに平行な
複数の偏平伝熱管と、該偏平伝熱管の周囲に配した放熱
フィンとを有する熱交換器において、上記複数の偏平伝
熱管のうち最外側部の偏平伝熱管の隣に配され、各偏平
伝熱管よりも通路断面積の大きい付加偏平伝熱管と、該
付加偏平伝熱管の周囲に配した付加放熱フィンとを備
え、上記付加偏平伝熱管の一端に配管接続部材を設け、
他端を上記ヘッダーパイプの端部に接続したことを特徴
とする熱交換器。1. A heat having a pair of header pipes parallel to each other, a plurality of flat heat transfer pipes parallel to each other connected between the pair of header pipes, and heat radiation fins arranged around the flat heat transfer pipes. In the exchanger, an additional flat heat transfer tube, which is arranged next to the outermost flat heat transfer tube among the plurality of flat heat transfer tubes and has a passage cross-sectional area larger than that of each flat heat transfer tube, and around the additional flat heat transfer tube. With the additional heat radiation fins arranged, a pipe connection member is provided at one end of the additional flat heat transfer tube,
A heat exchanger having the other end connected to an end of the header pipe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989064020U JP2513324Y2 (en) | 1989-06-02 | 1989-06-02 | Heat exchanger |
| US07/513,689 US5101890A (en) | 1989-04-24 | 1990-04-24 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989064020U JP2513324Y2 (en) | 1989-06-02 | 1989-06-02 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH035072U JPH035072U (en) | 1991-01-18 |
| JP2513324Y2 true JP2513324Y2 (en) | 1996-10-02 |
Family
ID=31594586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989064020U Expired - Lifetime JP2513324Y2 (en) | 1989-04-24 | 1989-06-02 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2513324Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6261616U (en) * | 1985-10-04 | 1987-04-16 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2676749B2 (en) * | 1987-12-04 | 1997-11-17 | 株式会社デンソー | Heat exchanger |
-
1989
- 1989-06-02 JP JP1989064020U patent/JP2513324Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH035072U (en) | 1991-01-18 |
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