JP2016217565A

JP2016217565A - Condenser

Info

Publication number: JP2016217565A
Application number: JP2015099910A
Authority: JP
Inventors: 藤井　隆行; Takayuki Fujii; 隆行藤井
Original assignee: Keihin Thermal Technology Corp
Current assignee: Mahle Behr Thermal Systems Japan Ltd
Priority date: 2015-05-15
Filing date: 2015-05-15
Publication date: 2016-12-22

Abstract

PROBLEM TO BE SOLVED: To provide a condenser capable of sufficiently assuring a heat exchanging area at a condensing part even in the case that the condenser is installed in a narrow space.SOLUTION: A condenser 1 includes a first heat exchanging part 2 composed of a condensing part 3, a second heat exchanging part 4 composed of a condensing part 5 and an overcooling part 6 and arranged at an upstream side of the first heat exchanging part 2, and a receiver 7 arranged between the condensing part 5 and the overcooling part 6 of the second heat exchanging part 4, and the refrigerant passed through the condensing part 3 and the condensing part 5 flows through the receiver 7 into the overcooling part 6. The first heat exchanging part 2 includes first and second header parts 16, 17 and a first heat exchanging path P1. The second heat exchanging part 4 includes third to eighth header parts 18 to 24 and second to fourth heat exchanging paths P2 to P4. The upper end of the receiver 7 is positioned at an upper location than the upper end of the third heat exchanging path P3 and its lower end is positioned at a lower location than the lower end of the third heat exchanging path P3 of the second heat exchanging part 4.SELECTED DRAWING: Figure 1

Description

この発明は、たとえば自動車に搭載される冷凍サイクルであるカーエアコンに好適に用いられるコンデンサに関する。 The present invention relates to a capacitor suitably used for, for example, a car air conditioner that is a refrigeration cycle mounted on an automobile.

この明細書および特許請求の範囲において、図面に矢印Ｘで示す通風方向の上流側から見た上下、左右、すなわち図１、図２、図５、図７および図９の上下、左右を上下、左右というものとする。 In this specification and claims, up and down, left and right as viewed from the upstream side of the ventilation direction indicated by arrow X in the drawing, that is, up and down, right and left in FIGS. 1, 2, 5, 7, and 9, It shall be left and right.

たとえばカーエアコンのコンデンサとして、凝縮部と、凝縮部の下方に設けられた過冷却部と、長手方向を上下方向に向けて配置された筒状の受液器とを備えており、凝縮部を通過した冷媒が、受液器を経て過冷却部に流入するようになされているものが周知である。 For example, a condenser of a car air conditioner includes a condensing unit, a supercooling unit provided below the condensing unit, and a cylindrical liquid receiver arranged with its longitudinal direction directed in the vertical direction. It is well known that the refrigerant that has passed through it flows into the supercooling section via the liquid receiver.

ところで、自動車によってはコンデンサの設置スペースが狭くなることがあり、上述した構成の周知コンデンサの場合には、寸法が不足し、必要な熱交換面積を得られないことがある。 By the way, the installation space of a capacitor | condenser may become narrow depending on a motor vehicle, and in the case of the well-known capacitor | condenser of the structure mentioned above, a dimension may be insufficient and a required heat exchange area may not be obtained.

そこで、本出願人は、先に、全体が凝縮部からなる第１熱交換部と、全体が過冷却部からなり、かつ第１熱交換部の風上側に配置されるとともに第１熱交換部よりも高さの低い第２熱交換部と、第１熱交換部と第２熱交換部との間に設けられ、かつ長手方向を上下方向に向けるとともに上下両端部が閉鎖された筒状体からなる受液器とを備えており、第１熱交換部が、長手方向を左右方向に向けるとともに上下方向に間隔をおいて並列状に配置された複数の熱交換管と、長手方向が上下方向を向いた状態で左右両端側に配置され、かつ熱交換管の左右両端部が接続された２つのヘッダタンクとを有し、第２熱交換部が、長手方向を左右方向に向けるとともに上下方向に間隔をおいて並列状に配置された複数の熱交換管と、長手方向が上下方向を向くとともに第１熱交換部の両ヘッダタンクの風上側に並んだ状態で左右両端側に配置され、かつ熱交換管の左右両端部が接続された２つのヘッダタンクとを有し、第１熱交換部の左側ヘッダタンクの全体に凝縮部入口ヘッダ部が設けられるとともに、右側ヘッダ部に凝縮部出口ヘッダ部が設けられ、第１熱交換部の両ヘッダタンクの全長にわたって熱交換管が接続され、第２熱交換部の右側ヘッダタンクの高さが第１熱交換部の右側ヘッダタンクの高さと等しくなっているとともに、右側ヘッダタンクの下部のみに過冷却部入口ヘッダ部が設けられ、第２熱交換部の左側ヘッダタンクの高さが右側ヘッダタンクの過冷却部入口ヘッダ部の高さと等しくなっているとともに、左側ヘッダタンクの全体に過冷却部出口ヘッダ部が設けられ、第２熱交換部の熱交換管の左端部が左側ヘッダタンクの全高にわたって接続されるとともに、同じく右端部が右側ヘッダタンクの過冷却部入口ヘッダ部の全高にわたって接続され、第１熱交換部の右側ヘッダタンクと第２熱交換部の右側ヘッダタンクとが連通部材により通じさせられ、第２熱交換部の右側ヘッダタンクが受液器を兼ねているコンデンサを提案した（特許文献１参照）。 In view of this, the applicant of the present invention firstly arranges the first heat exchanging portion entirely composed of the condensing unit and the entire subcooling portion, and is arranged on the windward side of the first heat exchanging portion and the first heat exchanging portion. A second heat exchange part having a lower height, a cylindrical body provided between the first heat exchange part and the second heat exchange part, the longitudinal direction thereof being directed in the vertical direction, and the upper and lower ends thereof being closed A first heat exchanging unit with a plurality of heat exchanging tubes arranged in parallel at intervals in the vertical direction and having a longitudinal direction in the vertical direction. And two header tanks that are arranged on both the left and right ends in a state of facing the direction and to which the left and right ends of the heat exchange pipe are connected. Multiple heat exchange tubes arranged in parallel at intervals in the direction, and the longitudinal direction is the vertical direction And two header tanks that are arranged on both the left and right ends in a state of being lined up on the windward side of both header tanks of the first heat exchange section and to which the left and right ends of the heat exchange pipe are connected. A condenser inlet header is provided on the entire left header tank of the exchanger, a condenser outlet header is provided on the right header, and heat exchange tubes are connected over the entire length of both header tanks of the first heat exchanger. The height of the right header tank of the second heat exchange part is equal to the height of the right header tank of the first heat exchange part, and a supercooling part inlet header part is provided only at the lower part of the right header tank, 2 The height of the left header tank of the heat exchange part is equal to the height of the supercooling part inlet header part of the right header tank, and the supercooling part outlet header part is provided in the entire left header tank. The left end of the heat exchange pipe of the heat exchange section is connected over the entire height of the left header tank, and the right end is also connected over the entire height of the supercooling section inlet header section of the right header tank, and the right header of the first heat exchange section A capacitor has been proposed in which the tank and the right header tank of the second heat exchange section are communicated by a communication member, and the right header tank of the second heat exchange section also serves as a receiver (see Patent Document 1).

しかしながら、特許文献１記載のコンデンサにおいても、狭いスペースに設置する場合には凝縮部の熱交換面積を十分に確保することができず、特殊な条件下で凝縮部での冷媒凝縮能力が不足することがある。 However, even in the capacitor described in Patent Document 1, when it is installed in a narrow space, the heat exchange area of the condensing part cannot be sufficiently secured, and the refrigerant condensing capacity in the condensing part is insufficient under special conditions. Sometimes.

特開平１１−２１１２７９号公報Japanese Patent Laid-Open No. 11-2111279

この発明の目的は、上記問題を解決し、狭いスペースに設置した場合にも凝縮部の熱交換面積を十分に確保しうるコンデンサを提供することにある。 An object of the present invention is to solve the above-described problems and provide a capacitor that can sufficiently secure a heat exchange area of a condensing part even when installed in a narrow space.

本発明は、上記目的を達成するために以下の態様からなる。 In order to achieve the above object, the present invention comprises the following aspects.

1)全体が凝縮部からなる第１熱交換部と、凝縮部および凝縮部の下方に設けられた過冷却部からなりかつ第１熱交換部の風上側に設けられた第２熱交換部と、第２熱交換部の凝縮部と過冷却部との間に設けられ、かつ長手方向を上下方向に向けた筒状の受液器とを備えており、第１熱交換部に、長手方向を左右方向に向けるとともに上下方向に間隔をおいて並列状に配置された複数の熱交換管からなる奇数の熱交換パスが設けられ、第２熱交換部の凝縮部に、長手方向を左右方向に向けるとともに上下方向に間隔をおいて並列状に配置された複数の熱交換管からなる偶数の熱交換パスが設けられ、第２熱交換部の過冷却部に、長手方向を左右方向に向けるとともに上下方向に間隔をおいて並列状に配置された複数の熱交換管からなる奇数の熱交換パスが設けられており、第１熱交換部の凝縮部および第２熱交換部の凝縮部を通過した冷媒が、受液器を経て第２熱交換部の過冷却部に流入するようになされており、
第１熱交換部が、外部から冷媒が流入しかつ第１熱交換部の冷媒流れ方向最上流側熱交換パスに通じる第１ヘッダ部、および第１熱交換部の冷媒流れ方向最下流側熱交換パスに通じかつ第２熱交換部の凝縮部に冷媒が流出する第２ヘッダ部を備え、
第２熱交換部が、第２熱交換部の凝縮部の冷媒流れ方向最上流側熱交換パスに通じかつ第１熱交換部の第２ヘッダ部から冷媒が流入する第３ヘッダ部、第２熱交換部の凝縮部の冷媒流れ方向最上流側熱交換パスに通じかつ当該熱交換パスから冷媒が流入する第４ヘッダ部、第２熱交換部の凝縮部の冷媒流れ方向最下流側熱交換パスに通じかつ当該熱交換パスに冷媒を流出する第５ヘッダ部、第２熱交換部の凝縮部の冷媒流れ方向最下流側熱交換パスに通じかつ当該熱交換パスから冷媒が流入する第６ヘッダ部、第２熱交換部の過冷却部の冷媒流れ方向最上流側熱交換パスに通じかつ当該熱交換パスに冷媒を流出する第７ヘッダ部、および第２熱交換部の過冷却部の冷媒流れ方向最下流側熱交換パスに通じかつ外部に冷媒を流出する第８ヘッダ部を備え、
第２ヘッダ部と第３ヘッダ部、および第６ヘッダ部と第７ヘッダ部とが通じさせられ、受液器の上端が第２熱交換部の凝縮部の最下流側熱交換パスの上端よりも上方に位置するとともに、受液器の下端が第２熱交換部の凝縮部の最下流側熱交換パスの下端よりも下方に位置しているコンデンサ。 1) The 1st heat exchange part which consists entirely of a condensation part, The 2nd heat exchange part which consists of the subcooling part provided under the condensation part and the condensation part, and was provided in the windward side of the 1st heat exchange part, And a cylindrical receiver that is provided between the condensing unit and the supercooling unit of the second heat exchange unit and whose longitudinal direction is directed in the vertical direction. Is provided with an odd number of heat exchange paths composed of a plurality of heat exchange tubes arranged in parallel at intervals in the vertical direction, and the longitudinal direction is set to the condensing part of the second heat exchange part in the horizontal direction. And an even number of heat exchange paths composed of a plurality of heat exchange tubes arranged in parallel at intervals in the vertical direction are provided, and the longitudinal direction is directed in the left-right direction to the supercooling part of the second heat exchange part And odd-numbered heat consisting of a plurality of heat exchange tubes arranged in parallel in the vertical direction. An exchange path is provided so that the refrigerant that has passed through the condensing part of the first heat exchanging part and the condensing part of the second heat exchanging part flows into the supercooling part of the second heat exchanging part via the liquid receiver. Has been made,
The first heat exchanging section includes a first header section in which refrigerant flows in from the outside and communicates with the most upstream heat exchange path in the refrigerant flow direction of the first heat exchange section, and the most downstream heat in the refrigerant flow direction of the first heat exchange section. A second header part that leads to the exchange path and from which the refrigerant flows out to the condensing part of the second heat exchange part;
A third header part through which the second heat exchange part communicates with the most upstream heat exchange path in the refrigerant flow direction of the condenser part of the second heat exchange part and into which the refrigerant flows from the second header part of the first heat exchange part; The fourth header part through which the refrigerant flows in the most upstream side heat exchange path in the refrigerant flow direction of the condenser part of the heat exchange part and the refrigerant flows in from the heat exchange path, and the most downstream side heat exchange in the refrigerant flow direction of the condenser part of the second heat exchange part A fifth header part that leads to the path and flows out of the refrigerant to the heat exchange path; a sixth header part that leads to the heat exchange path on the most downstream side in the refrigerant flow direction of the condensing part of the second heat exchange part and flows in from the heat exchange path; A header part, a seventh header part that leads to the most upstream heat exchange path in the refrigerant flow direction of the supercooling part of the second heat exchange part and flows out the refrigerant to the heat exchange path, and a supercooling part of the second heat exchange part An eighth header that leads to the heat exchange path on the most downstream side in the refrigerant flow direction and flows out the refrigerant to the outside Equipped with a,
The second header portion and the third header portion, and the sixth header portion and the seventh header portion are communicated, and the upper end of the liquid receiver is higher than the upper end of the most downstream heat exchange path of the condensing portion of the second heat exchange portion. And the lower end of the liquid receiver are located below the lower end of the most downstream heat exchange path of the condensing part of the second heat exchange part.

2)第２熱交換部の第６ヘッダ部が、第２熱交換部の過冷却部よりも上方の部分において受液器と別個に設けられ、同じく第７ヘッダ部が、第２熱交換部の凝縮部の下方の部分において受液器に設けられ、第６ヘッダ部と、受液器における第７ヘッダ部よりも上方の部分とが連通部材により通じさせられ、受液器における当該連通部材が通じている部分と第７ヘッダ部とが通じさせられている上記1)記載のコンデンサ。 2) The 6th header part of the 2nd heat exchange part is provided separately from the receiver in the part above the supercooling part of the 2nd heat exchange part, and the 7th header part is also the 2nd heat exchange part The 6th header part and the part above the 7th header part in a liquid receiver are made to communicate with a communicating member in the lower part of the condensation part of the above, and the said communicating member in a liquid receiver The capacitor described in 1) above, wherein the portion through which the seventh portion is communicated with the seventh header portion.

3)第１熱交換部の左右いずれか一端側に第１ヘッダタンクが配置されるとともに、同他端側に第２ヘッダタンクが配置され、第２熱交換部の左右いずれか一端側に、第３ヘッダタンクが第１ヘッダタンクと通風方向に並ぶように配置されるとともに、同他端側に、第４ヘッダタンクが第２ヘッダタンクと通風方向に並ぶように配置され、第１ヘッダタンクに第１ヘッダ部が設けられるとともに、第２ヘッダタンクに第２ヘッダ部が設けられ、第３ヘッダタンクに、第４ヘッダ部、第５ヘッダ部および第８ヘッダ部が、第４ヘッダ部と第５ヘッダ部とが連通状となるとともに第５ヘッダ部と第８ヘッダ部とが非連通状となるように設けられ、第４ヘッダタンクに第３ヘッダ部および第６ヘッダ部が非連通状となるように設けられ、第４ヘッダタンクの下端が第２熱交換部の凝縮部の冷媒流れ方向最下流側熱交換パスと過冷却部の冷媒流れ方向最上流側熱交換パスとの間に位置し、受液器が、第２ヘッダタンクおよび第４ヘッダタンクよりも左右方向外側に配置されている上記2)記載のコンデンサ。 3) A first header tank is disposed on one of the left and right ends of the first heat exchange section, and a second header tank is disposed on the other end of the first heat exchange section. The third header tank is disposed so as to be aligned with the first header tank in the ventilation direction, and the fourth header tank is disposed so as to be aligned with the second header tank in the ventilation direction on the other end side. Are provided with a first header portion, a second header tank is provided with a second header portion, a third header tank is provided with a fourth header portion, a fifth header portion, and an eighth header portion. The fifth header part is connected to the fifth header part and the fifth header part and the eighth header part are not connected to each other, and the third header part and the sixth header part are not connected to the fourth header tank. The fourth header tag is The lower end of the cup is positioned between the most downstream heat exchange path in the refrigerant flow direction of the condensing part of the second heat exchange part and the most upstream heat exchange path in the refrigerant flow direction of the supercooling part, and the receiver is The capacitor as described in 2) above, which is disposed on the outer side in the left-right direction from the header tank and the fourth header tank.

4)第２ヘッダタンクと第４ヘッダタンクとが一体に設けられている上記3)記載のコンデンサ。 4) The capacitor described in 3) above, wherein the second header tank and the fourth header tank are integrally provided.

5)第２熱交換部の第６ヘッダ部が、第２熱交換部の過冷却部よりも上方の部分において受液器に設けられ、同じく第７ヘッダ部が、第２熱交換部の凝縮部の最下流側熱交換パスの下端よりも下方に位置する部分において受液器に設けられ、第６ヘッダ部と第７ヘッダ部とが受液器内で通じさせられている上記1)請求項１記載のコンデンサ。 5) The 6th header part of the 2nd heat exchange part is provided in the liquid receiver in the part above the supercooling part of the 2nd heat exchange part, and the 7th header part is the condensation of the 2nd heat exchange part similarly The above-mentioned 1), wherein the sixth header portion and the seventh header portion are provided in the liquid receiver in a portion located below the lower end of the most downstream heat exchange path of the portion, and the sixth header portion and the seventh header portion are communicated in the liquid receiver. Item 1. The capacitor according to Item 1.

6)第１熱交換部の左右いずれか一端側に第１ヘッダタンクが配置されるとともに、同他端側に第２ヘッダタンクが配置され、第２熱交換部の左右いずれか一端側に、第３ヘッダタンクが第１ヘッダタンクと通風方向に並ぶように配置されるとともに、同他端側に、第４ヘッダタンクが第２ヘッダタンクと通風方向に並ぶように配置され、第１ヘッダタンクに第１ヘッダ部が設けられるとともに、第２ヘッダタンクに第２ヘッダ部が設けられ、第３ヘッダタンクに、第４ヘッダ部、第５ヘッダ部および第８ヘッダ部が、第４ヘッダ部と第５ヘッダ部とが連通状となるとともに第５ヘッダ部と第８ヘッダ部とが非連通状となるように設けられ、第４ヘッダタンクに第３ヘッダ部が設けられ、第４ヘッダタンクの下端が、第２熱交換部の凝縮部の冷媒流れ方向最下流側熱交換パスの上端よりも上方に位置し、受液器が、第２ヘッダタンクおよび第４ヘッダタンクよりも左右方向外側に配置されている上記5)記載のコンデンサ。 6) A first header tank is disposed on one of the left and right ends of the first heat exchange section, and a second header tank is disposed on the other end of the first heat exchange section. The third header tank is disposed so as to be aligned with the first header tank in the ventilation direction, and the fourth header tank is disposed so as to be aligned with the second header tank in the ventilation direction on the other end side. Are provided with a first header portion, a second header tank is provided with a second header portion, a third header tank is provided with a fourth header portion, a fifth header portion, and an eighth header portion. The fifth header part is provided in communication with the fifth header part and the eighth header part is provided in non-communication, the third header part is provided in the fourth header tank, The lower end is the cooling of the condensing part of the second heat exchange part. Positioned above the upper end of the flow direction downstream side heat exchange path, the 5) capacitor according to receiver is arranged in the left-right direction outer side of the second header tank, and a fourth header tank.

7)第２ヘッダタンクと第４ヘッダタンクとが一体に設けられている上記6)記載のコンデンサ。 7) The capacitor described in 6) above, wherein the second header tank and the fourth header tank are integrally provided.

8)第１熱交換部の凝縮部に１つの熱交換パスが設けられ、第２熱交換部の凝縮部に２つの熱交換パスが設けられるとともに、第２熱交換部の過冷却部に１つの熱交換パスが設けられ、第１ヘッダタンク全体に第１ヘッダ部が設けられ、第２ヘッダタンク全体に第２ヘッダ部が設けられている上記3)、4)、6)または7)に記載のコンデンサ。 8) One heat exchange path is provided in the condensing part of the first heat exchange part, two heat exchange paths are provided in the condensing part of the second heat exchange part, and 1 is provided in the supercooling part of the second heat exchange part. 3), 4), 6) or 7) in which two heat exchange paths are provided, the first header section is provided in the entire first header tank, and the second header section is provided in the entire second header tank. The capacitor described.

9)第１熱交換部および第２熱交換部において、隣り合う熱交換管どうしの間および上下両端の外側に、波頂部、波底部、および波頂部と波底部とを結ぶ連結部よりなるコルゲートフィンが配置されており、第２熱交換部のコルゲートフィンにおける隣り合う波頂部どうしの間隔であるフィンピッチが、第１熱交換部のコルゲートフィンにおける隣り合う波頂部どうしの間隔であるフィンピッチよりも大きくなっている上記1)〜8)のうちのいずれかに記載のコンデンサ。 9) In the first heat exchange part and the second heat exchange part, a corrugated structure comprising a wave crest part, a wave bottom part, and a connecting part connecting the wave crest part and the wave bottom part between adjacent heat exchange tubes and outside the upper and lower ends. Fins are arranged, and the fin pitch that is the distance between adjacent wave crests in the corrugated fin of the second heat exchange part is greater than the fin pitch that is the distance between adjacent wave crests in the corrugated fin of the first heat exchange part The capacitor according to any one of 1) to 8), which is also larger.

上記1)〜9)のコンデンサによれば、第１熱交換部および第２熱交換部の高さを同等とすれば、第１熱交換部の熱交換面積を特許文献１記載のコンデンサの第１熱交換部の熱交換面積と同等とした場合にも、凝縮部の熱交換面積を増大させることができる。したがって、狭いスペースに設置した場合にも凝縮部の熱交換面積を十分に確保することが可能になり、特殊な条件下で凝縮部での冷媒凝縮能力の不足を防止することができる。 According to the capacitors 1) to 9) above, if the heights of the first heat exchange part and the second heat exchange part are made equal, the heat exchange area of the first heat exchange part is the same as that of the capacitor described in Patent Document 1. Even when the heat exchange area is the same as that of one heat exchange part, the heat exchange area of the condensing part can be increased. Therefore, even when installed in a narrow space, it is possible to secure a sufficient heat exchange area of the condensing part, and it is possible to prevent shortage of refrigerant condensing capacity in the condensing part under special conditions.

上記9)のコンデンサによれば、第１熱交換部に風が流れやすくなり、第１熱交換部の凝縮部での熱交換性能が向上し、その結果コンデンサ全体の放熱効率が優れたものになる。 According to the above capacitor 9), the air can easily flow through the first heat exchanging part, and the heat exchanging performance in the condensing part of the first heat exchanging part is improved. Become.

この発明の実施形態１のコンデンサの全体構成を具体的に示す斜視図である。It is a perspective view which shows concretely the whole structure of the capacitor | condenser of Embodiment 1 of this invention. 図１のコンデンサを模式的に示す斜視図である。It is a perspective view which shows the capacitor | condenser of FIG. 1 typically. 図１のコンデンサの構成を分かり易く示す展開図である。FIG. 2 is a development view showing the configuration of the capacitor in FIG. 1 in an easy-to-understand manner. 図１のコンデンサのコルゲートフィンを拡大して示す正面図であり、(a)は第１熱交換部のコルゲートフィン、(b)は第２熱交換部のコルゲートフィンである。It is a front view which expands and shows the corrugated fin of the capacitor | condenser of FIG. 1, (a) is a corrugated fin of a 1st heat exchange part, (b) is a corrugated fin of a 2nd heat exchange part. この発明の実施形態２のコンデンサの全体構成を模式的に示す斜視図である。It is a perspective view which shows typically the whole structure of the capacitor | condenser of Embodiment 2 of this invention. 図５のコンデンサの構成を分かり易く示す説明図である。It is explanatory drawing which shows the structure of the capacitor | condenser of FIG. 5 clearly. この発明の実施形態３のコンデンサの全体構成を模式的に示す斜視図である。It is a perspective view which shows typically the whole structure of the capacitor | condenser of Embodiment 3 of this invention. 図７のコンデンサの構成を分かり易く示す説明図である。It is explanatory drawing which shows the structure of the capacitor | condenser of FIG. この発明の実施形態４のコンデンサの全体構成を模式的に示す斜視図である。It is a perspective view which shows typically the whole structure of the capacitor | condenser of Embodiment 4 of this invention. 図９のコンデンサの構成を分かり易く示す説明図である。FIG. 10 is an explanatory diagram showing the configuration of the capacitor of FIG. 9 in an easy-to-understand manner.

以下、この発明の実施形態を、図面を参照して説明する。 Embodiments of the present invention will be described below with reference to the drawings.

また、以下の説明において、「アルミニウム」という用語には、純アルミニウムの他にアルミニウム合金を含むものとする。 In the following description, the term “aluminum” includes aluminum alloys in addition to pure aluminum.

さらに、全図面を通じて同一物および同一部分には同一符号を付す。
実施形態１
この実施形態は図１〜図４に示すものである。 Further, the same components and the same parts are denoted by the same reference symbols throughout the drawings.
Embodiment 1
This embodiment is shown in FIGS.

図１はこの発明の実施形態１のコンデンサの全体構成を具体的に示し、図２は図１のコンデンサを模式的に示し、図３は図１のコンデンサを展開して分かり易く示す。また、図４は図１のコンデンサの要部の構成を示す。図２および図３においては、個々の熱交換管の図示は省略されるとともに、コルゲートフィン、サイドプレート、入口部材および出口部材の図示も省略されている。 FIG. 1 specifically shows the overall configuration of the capacitor of Embodiment 1 of the present invention, FIG. 2 schematically shows the capacitor of FIG. 1, and FIG. 3 shows the capacitor of FIG. FIG. 4 shows a configuration of a main part of the capacitor shown in FIG. 2 and 3, illustration of individual heat exchange tubes is omitted, and illustration of corrugated fins, side plates, inlet members, and outlet members is also omitted.

図１〜図３において、コンデンサ(1)は、全体が凝縮部(3)からなる第１熱交換部(2)と、凝縮部(5)および凝縮部(5)の下方に設けられた過冷却部(6)からなりかつ第１熱交換部(2)の風上側に設けられた第２熱交換部(4)と、冷媒流れ方向に関して第２熱交換部(4)の凝縮部(5)と過冷却部(6)との間に設けられ、かつ長手方向を上下方向に向けるとともに上下両端部が閉鎖された筒状受液器(7)とを備えており、図１および図２に矢印Ｘで示す方向に風が流れるようになっている。以下、第１熱交換部(2)の凝縮部(3)を第１凝縮部、第２熱交換部(4)の凝縮部(5)を第２凝縮部というものとする。 1 to 3, the condenser (1) includes a first heat exchanging part (2) that is entirely composed of a condensing part (3), and an excess provided below the condensing part (5) and the condensing part (5). A second heat exchange part (4) comprising a cooling part (6) and provided on the windward side of the first heat exchange part (2), and a condensing part (5 in the second heat exchange part (4) in the refrigerant flow direction) ) And the supercooling section (6), and a cylindrical liquid receiver (7) whose longitudinal direction is directed in the vertical direction and whose both upper and lower ends are closed. The wind flows in the direction indicated by the arrow X. Hereinafter, the condensing part (3) of the first heat exchanging part (2) is referred to as a first condensing part, and the condensing part (5) of the second heat exchanging part (4) is referred to as a second condensing part.

コンデンサ(1)は、第１熱交換部(2)および第２熱交換部(4)において、それぞれ幅方向を通風方向に向けるとともに長手方向を左右方向に向けた状態で上下方向に間隔をおいて配置された複数のアルミニウム製扁平状熱交換管(8)と、長手方向を上下方向に向けて配置されるとともに熱交換管(8)の左右両端部がろう付により接続された複数のアルミニウム製ヘッダタンク(10)(11)(12)(13)と、隣り合う熱交換管(8)どうしの間および上下両端の外側に配置されて熱交換管(8)にろう付されたアルミニウム製コルゲートフィン(14)と、上下両端のコルゲートフィン(14)の外側に配置されてコルゲートフィン(14)にろう付されたアルミニウム製サイドプレート(15)とを備えている。図４に示すように、コルゲートフィン(14)は、波頂部(14a)、波底部(14b)、および波頂部(14a)と波底部(14b)とを結ぶ連結部(14c)よりなり、第２熱交換部(4)のコルゲートフィン(14)における隣り合う波頂部(14a)どうしの間隔であるフィンピッチ(F2)が、第１熱交換部(2)のコルゲートフィン(14)における隣り合う波頂部(14a)どうしの間隔であるフィンピッチ(F1)よりも大きくなっている。 The condenser (1) is spaced apart in the vertical direction in the first heat exchange part (2) and the second heat exchange part (4) with the width direction directed in the ventilation direction and the longitudinal direction directed in the left-right direction. A plurality of aluminum flat heat exchange tubes (8) arranged in a vertical direction and a plurality of aluminum plates arranged with the longitudinal direction thereof directed vertically and the left and right ends of the heat exchange tubes (8) connected by brazing Aluminum header tanks (10), (11), (12), and (13) and the heat exchanger tubes (8) brazed to the heat exchanger tubes (8) between the adjacent heat exchanger tubes (8) and outside the upper and lower ends A corrugated fin (14) and an aluminum side plate (15) disposed outside the corrugated fins (14) at both upper and lower ends and brazed to the corrugated fins (14) are provided. As shown in FIG. 4, the corrugated fin (14) includes a wave crest (14a), a wave bottom (14b), and a connecting portion (14c) connecting the wave crest (14a) and the wave bottom (14b). 2 The fin pitch (F2), which is the distance between adjacent wave crests (14a) in the corrugated fin (14) of the heat exchanger (4), is adjacent to the corrugated fin (14) of the first heat exchanger (2). It is larger than the fin pitch (F1) which is the interval between the wave crests (14a).

コンデンサ(1)の第１熱交換部(2)の第１凝縮部(3)に、上下方向に並んだ複数の熱交換管(8)からなる奇数、ここでは１つの熱交換パス(P1)が設けられている。また、第２熱交換部(4)の第２凝縮部(5)に、上下方向に並んだ複数の熱交換管(8)からなる偶数、ここでは２つの熱交換パス(P2)(P3)が設けられ、第２熱交換部(4)の過冷却部(6)に、上下方向に並んだ複数の熱交換管(8)からなる奇数、ここでは１つの熱交換パス(P4)が設けられている。第２熱交換部(4)の各熱交換パス(P1)(P2)を構成する全ての熱交換管(8)の冷媒流れ方向が同一となっているとともに、隣り合う２つの熱交換パスの熱交換管(8)の冷媒流れ方向が異なっている。ここで、第１熱交換部(2)の第１凝縮部(3)の熱交換パス(P1)を第１熱交換パスといい、第２熱交換部(4)の第２凝縮部(5)の２つの熱交換パス(P2)(P3)を上から順に第２熱交換パスおよび第３熱交換パスといい、第２熱交換部(4)の過冷却部(6)の熱交換パス(P4)を第４熱交換パスというものとする。なお、第１凝縮部(3)に１つの第１熱交換パス(P1)が設けられ、過冷却部(6)に１つの第４熱交換パス(P4)が設けられているので、第１熱交換パス(P1)が、第１凝縮部(3)の冷媒流れ方向最上流側熱交換パスになると同時に、第１凝縮部(3)の冷媒流れ方向最下流側熱交換パスとなり、第４熱交換パス(P4)が、過冷却部(6)の冷媒流れ方向最上流側熱交換パスになると同時に、過冷却部(6)の冷媒流れ方向最下流側熱交換パスとなっている。 An odd number of heat exchange pipes (8) arranged in the vertical direction in the first condensation section (3) of the first heat exchange section (2) of the condenser (1), here one heat exchange path (P1) Is provided. Further, the second condensing part (5) of the second heat exchanging part (4) has an even number of heat exchanging pipes (8) arranged in the vertical direction, here two heat exchanging paths (P2) (P3). The subcooling section (6) of the second heat exchange section (4) is provided with an odd number of heat exchange pipes (8) arranged in the vertical direction, here, one heat exchange path (P4). It has been. The refrigerant flow directions of all heat exchange pipes (8) constituting each heat exchange path (P1) (P2) of the second heat exchange section (4) are the same, and two adjacent heat exchange paths The direction of refrigerant flow in the heat exchange pipe (8) is different. Here, the heat exchange path (P1) of the first condensation section (3) of the first heat exchange section (2) is referred to as a first heat exchange path, and the second condensation section (5 of the second heat exchange section (4)). The two heat exchange paths (P2) and (P3) are called the second heat exchange path and the third heat exchange path in order from the top, and the heat exchange path of the supercooling section (6) of the second heat exchange section (4) Let (P4) be the fourth heat exchange path. The first condensing part (3) is provided with one first heat exchange path (P1), and the subcooling part (6) is provided with one fourth heat exchange path (P4). The heat exchange path (P1) becomes the most upstream side heat exchange path in the refrigerant flow direction of the first condensing part (3), and at the same time becomes the most downstream side heat exchange path in the refrigerant flow direction of the first condensing part (3). The heat exchange path (P4) is the most upstream heat exchange path in the refrigerant flow direction of the supercooling section (6), and at the same time the most downstream heat exchange path in the refrigerant flow direction of the supercooling section (6).

コンデンサ(1)においては、第１凝縮部(3)の第１熱交換パス(P1)の熱交換管(8)から流出した冷媒が第２凝縮部(5)の第２および第３熱交換パス(P2)(P3)を流れ、さらに受液器(7)を経て第４熱交換パス(P4)の熱交換管(8)に流入するようになっており、第１凝縮部(3)および第２凝縮部(5)を通過した冷媒が、受液器(7)を経て過冷却部(6)に流入する。 In the condenser (1), the refrigerant flowing out from the heat exchange pipe (8) of the first heat exchange path (P1) of the first condensing part (3) passes through the second and third heat exchanges of the second condensing part (5). It flows through the paths (P2) and (P3), and further flows into the heat exchange pipe (8) of the fourth heat exchange path (P4) via the receiver (7). The first condensing part (3) And the refrigerant | coolant which passed the 2nd condensation part (5) flows in into a supercooling part (6) through a liquid receiver (7).

第１熱交換部(2)は、外部から冷媒が流入しかつ第１熱交換パス(P1)の冷媒流れ方向上流側に通じる第１ヘッダ部(16)、および第１熱交換パス(P1)の冷媒流れ方向下流側に通じかつ第２凝縮部(5)に冷媒が流出する第２ヘッダ部(17)を備えている。第２熱交換部(4)は、第２凝縮部(5)の第２熱交換パス(P2)（第２凝縮部(5)の冷媒流れ方向最上流側熱交換パス)の冷媒流れ方向上流側に通じかつ第１熱交換部(2)の第２ヘッダ部(17)から冷媒が流入する第３ヘッダ部(18)、第２凝縮部(5)の第２熱交換パス(P2)の冷媒流れ方向下流側に通じかつ第２熱交換パス(P2)から冷媒が流入する第４ヘッダ部(19)、第２凝縮部(5)の第３熱交換パス(P3)（第２凝縮部(5)の冷媒流れ方向最下流側熱交換パス）の冷媒流れ方向上流側に通じかつ第３熱交換パス(P3)に冷媒を流出する第５ヘッダ部(21)、第２凝縮部(5)の第３熱交換パス(P3)の冷媒流れ方向下流側に通じかつ第３熱交換パス(P3)から冷媒が流入する第６ヘッダ部(22)、第２熱交換部(4)の過冷却部(6)の第４熱交換パス(P4)の冷媒流れ方向上流側に通じかつ第４熱交換パス(P4)に冷媒を流出する第７ヘッダ部(23)、および第２熱交換部(4)の過冷却部(6)の第４熱交換パス(P4)の冷媒流れ方向下流側に通じかつ外部に冷媒を流出する第８ヘッダ部(24)を備えている。第２ヘッダ部(17)と第３ヘッダ部(18)、および第６ヘッダ部(22)と第７ヘッダ部(23)とが通じさせられている。 The first heat exchange section (2) includes a first header section (16) through which refrigerant flows in from the outside and communicates upstream of the first heat exchange path (P1) in the refrigerant flow direction, and a first heat exchange path (P1). And a second header portion (17) through which the refrigerant flows out to the second condensing portion (5). The second heat exchange section (4) is upstream of the second heat exchange path (P2) of the second condensing section (5) (the uppermost heat exchange path in the refrigerant flow direction of the second condensing section (5)) in the refrigerant flow direction. Of the second heat exchange path (P2) of the third header part (18) through which the refrigerant flows from the second header part (17) of the first heat exchange part (2) and the second condenser part (5). The fourth header section (19) through which the refrigerant flows from the downstream side in the refrigerant flow direction and from the second heat exchange path (P2), the third heat exchange path (P3) of the second condenser section (5) (second condenser section) The fifth header portion (21) and the second condensing portion (5) that lead to the upstream side of the refrigerant flow direction in the refrigerant flow direction (5) in the refrigerant flow direction (5) and flow out of the refrigerant to the third heat exchange path (P3). ) Of the sixth header part (22) and the second heat exchange part (4) through which the refrigerant flows from the third heat exchange path (P3) to the downstream side in the refrigerant flow direction and from the third heat exchange path (P3). It leads to the fourth heat exchange path (P4) upstream of the refrigerant flow direction of the fourth heat exchange path (P4) of the cooling section (6) A refrigerant is passed to the downstream side in the refrigerant flow direction of the fourth heat exchange path (P4) of the superheater (6) of the seventh header part (23) through which the medium flows out and the second heat exchange part (4). An eighth header portion (24) that flows out is provided. The second header portion (17) and the third header portion (18), and the sixth header portion (22) and the seventh header portion (23) are communicated.

受液器(7)の上端は、第２凝縮部(5)の第３熱交換パス(P3)の上端よりも上方、ここでは第２熱交換パス(P2)の上端よりも上方に位置するとともに、受液器(7)の下端は第２凝縮部(5)の第３熱交換パス(P3)の下端よりも下方に位置している。 The upper end of the liquid receiver (7) is located above the upper end of the third heat exchange path (P3) of the second condensing unit (5), and here is located above the upper end of the second heat exchange path (P2). At the same time, the lower end of the liquid receiver (7) is located below the lower end of the third heat exchange path (P3) of the second condensing part (5).

第２熱交換部(4)の第６ヘッダ部(22)は、第２熱交換部(4)の過冷却部(6)よりも上方の部分において受液器(7)と別個に設けられ、同じく第７ヘッダ部(23)は、第２熱交換部(4)の第２凝縮部(5)の第３熱交換パス(P3)の下端よりも下方の部分において受液器(7)に設けられ、第６ヘッダ部(22)と、受液器(7)における第７ヘッダ部(23)よりも上方の部分とが連通部材(25)により通じさせられている。また、受液器(7)における連通部材(25)が通じている部分と第７ヘッダ部(23)とが通じさせられている。 The sixth header part (22) of the second heat exchange part (4) is provided separately from the liquid receiver (7) in a portion above the supercooling part (6) of the second heat exchange part (4). Similarly, the seventh header portion (23) is a liquid receiver (7) at a portion below the lower end of the third heat exchange path (P3) of the second condensing portion (5) of the second heat exchanging portion (4). The sixth header portion (22) and a portion above the seventh header portion (23) in the liquid receiver (7) are communicated with each other by the communication member (25). Further, the portion of the liquid receiver (7) through which the communicating member (25) communicates with the seventh header portion (23).

第１熱交換部(2)の右端側には、第１熱交換パス(P1)の熱交換管(8)の右端部がろう付により接続された第１ヘッダタンク(10)が配置されるとともに、同左端側には、上下両端が第１ヘッダタンク(10)の上下両端と同一高さ位置にあり、かつ第１熱交換パス(P1)の熱交換管(8)の左端部がろう付により接続された第２ヘッダタンク(11)が配置されている。第２熱交換部(4)の右端側には、上下両端が第１および第２ヘッダタンク(10)(11)の上下両端と同一高さ位置にあり、かつ第２〜第４熱交換パス(P2)(P3)(P4)の熱交換管(8)の右端部がろう付により接続された第３ヘッダタンク(12)が、第１ヘッダタンク(10)の通風方向上流側に並ぶように配置されている。また、第２熱交換部(4)の左端側には、第２および第３熱交換パス(P2)(P3)の熱交換管(8)の左端部がろう付により接続された第４ヘッダタンク(13)が第２ヘッダタンク(11)の通風方向上流側に並ぶように配置されている。第４ヘッダタンク(13)の上端は第１〜第３ヘッダタンク(10)(11)(12)の上端と同一高さ位置にあり、同下端は第２熱交換部(4)の過冷却部(6)の第４熱交換パス(P4)よりも上方の高さ位置にある。第４ヘッダタンク(13)は第２ヘッダタンク(11)と一体に設けられており、第２ヘッダ部(17)内と第３ヘッダ部(18)内とは連通状態となっている。 A first header tank (10) in which the right end of the heat exchange pipe (8) of the first heat exchange path (P1) is connected by brazing is disposed on the right end side of the first heat exchange section (2). In addition, on the left end side, the upper and lower ends are at the same height as the upper and lower ends of the first header tank (10), and the left end portion of the heat exchange pipe (8) of the first heat exchange path (P1) A second header tank (11) connected by attachment is disposed. On the right end side of the second heat exchange section (4), the upper and lower ends are at the same height as the upper and lower ends of the first and second header tanks (10) and (11), and the second to fourth heat exchange paths. The third header tank (12) with the right end of the heat exchange pipe (8) of (P2), (P3), and (P4) connected by brazing is lined up upstream in the ventilation direction of the first header tank (10). Is arranged. Also, on the left end side of the second heat exchange section (4) is a fourth header in which the left end portions of the heat exchange pipes (8) of the second and third heat exchange paths (P2) and (P3) are connected by brazing. The tank (13) is arranged so as to be arranged upstream of the second header tank (11) in the ventilation direction. The upper end of the fourth header tank (13) is at the same height as the upper ends of the first to third header tanks (10), (11) and (12), and the lower end is the supercooling of the second heat exchange section (4). It exists in the height position above the 4th heat exchange path | pass (P4) of a part (6). The fourth header tank (13) is provided integrally with the second header tank (11), and the second header portion (17) and the third header portion (18) are in communication with each other.

第１ヘッダタンク(10)の全体に第１ヘッダ部(16)が設けられるとともに、第２ヘッダタンク(11)の全体に第２ヘッダ部(17)が設けられている。また、第１ヘッダタンク(10)の下部に外部から第１ヘッダ部(16)内に冷媒を流入させる冷媒入口(26)が形成され、アルミニウム製入口部材(27)が、冷媒入口(26)に通じるように第１ヘッダタンク(10)にろう付されている。第３ヘッダタンク(12)に、第４ヘッダ部(19)、第５ヘッダ部(21)および第８ヘッダ部(24)が、第４ヘッダ部(19)と第５ヘッダ部(21)とが連通状となるとともに第５ヘッダ部(21)と第８ヘッダ部(24)とが非連通状となり、かつこれら３つのヘッダ部(19)(21)(24)が上から順に並ぶように設けられている。第５ヘッダ部(21)と第８ヘッダ部(24)との間には仕切部材(28)が設けられている。また、第３ヘッダタンク(12)の下部に、第８ヘッダ部(24)から冷媒を外部に流出させる冷媒出口(29)が形成され、アルミニウム製出口部材(31)が、冷媒出口(29)に通じるように第３ヘッダタンク(12)にろう付されている。第４ヘッダタンク(13)に、第３ヘッダ部(18)および第６ヘッダ部(22)が、前者が上側に位置するように非連通状となるように設けられており、第３ヘッダ部(18)と第６ヘッダ部(22)との間には仕切部材(30)が設けられている。 The first header tank (10) is provided with a first header portion (16), and the second header tank (11) is provided with a second header portion (17). In addition, a refrigerant inlet (26) for allowing a refrigerant to flow into the first header portion (16) from the outside is formed in the lower portion of the first header tank (10), and an aluminum inlet member (27) is provided as the refrigerant inlet (26). The first header tank (10) is brazed so as to lead to In the third header tank (12), the fourth header part (19), the fifth header part (21) and the eighth header part (24) are connected to the fourth header part (19) and the fifth header part (21). So that the fifth header portion (21) and the eighth header portion (24) are not connected, and the three header portions (19), (21), and (24) are arranged in order from the top. Is provided. A partition member (28) is provided between the fifth header portion (21) and the eighth header portion (24). In addition, a refrigerant outlet (29) for allowing the refrigerant to flow out from the eighth header section (24) to the outside is formed in the lower part of the third header tank (12), and the aluminum outlet member (31) serves as the refrigerant outlet (29). The third header tank (12) is brazed so as to lead to The fourth header tank (13) is provided with a third header portion (18) and a sixth header portion (22) so as to be in a non-communication manner so that the former is located on the upper side. A partition member (30) is provided between (18) and the sixth header portion (22).

受液器(7)は、第２ヘッダタンク(11)および第４ヘッダタンク(13)よりも左右方向外側に配置されており、受液器(7)における第３熱交換パス(P3)の下端よりも下方に突出した部分に第７ヘッダ部(23)が設けられるとともに、当該下方突出部に第４熱交換パス(P4)の熱交換管(8)の左端部がろう付により接続されている。 The liquid receiver (7) is disposed outside the second header tank (11) and the fourth header tank (13) in the left-right direction, and is connected to the third heat exchange path (P3) in the liquid receiver (7). A seventh header portion (23) is provided at a portion protruding downward from the lower end, and the left end portion of the heat exchange pipe (8) of the fourth heat exchange path (P4) is connected to the lower protrusion portion by brazing. ing.

コンデンサ(1)は、圧縮機、膨張弁（減圧器）およびエバポレータとともに冷凍サイクルを構成し、カーエアコンとして車両に搭載される。 The condenser (1) constitutes a refrigeration cycle together with a compressor, an expansion valve (decompressor) and an evaporator, and is mounted on a vehicle as a car air conditioner.

上述した構成のコンデンサ(1)を備えたカーエアコンにおいて、圧縮機により圧縮された高温高圧の気相冷媒が、入口部材(27)および冷媒入口(26)を通って第１ヘッダタンク(10)の第１ヘッダ部(16)内に流入し、第１熱交換パス(P1)の熱交換管(8)内を左方に流れて第２ヘッダタンク(11)の第２ヘッダ部(17)内に流入する。第２ヘッダ部(17)内に流入した冷媒は、第４ヘッダタンク(13)の第３ヘッダ部(18)内に入った後、第２熱交換パス(P2)の熱交換管(8)内を右方に流れて第３ヘッダタンク(12)の第４ヘッダ部(19)内に流入する。第４ヘッダ部(19)内に流入した冷媒は、第５ヘッダ部(21)内に入った後、第３熱交換パス(P3)の熱交換管(8)内を左方に流れて第４ヘッダタンク(13)の第６ヘッダ部(22)内に流入する。 In the car air conditioner including the condenser (1) having the above-described configuration, the high-temperature and high-pressure gas-phase refrigerant compressed by the compressor passes through the inlet member (27) and the refrigerant inlet (26), and the first header tank (10). Flows into the first header portion (16) of the first header, and flows leftward in the heat exchange pipe (8) of the first heat exchange path (P1) to the second header portion (17) of the second header tank (11). Flows in. The refrigerant flowing into the second header part (17) enters the third header part (18) of the fourth header tank (13), and then the heat exchange pipe (8) of the second heat exchange path (P2). It flows rightward inside and flows into the fourth header portion (19) of the third header tank (12). The refrigerant flowing into the fourth header part (19) enters the fifth header part (21) and then flows leftward in the heat exchange pipe (8) of the third heat exchange path (P3). It flows into the sixth header part (22) of the four header tank (13).

第４ヘッダタンク(13)の第６ヘッダ部(22)内に流入した冷媒は、連通部材(25)を通って受液器(7)内に入り、受液器(7)内おいて気相と液相とに分離され、液相が第７ヘッダ部(23)内に溜られる。第７ヘッダ部(23)内に溜められた液相の冷媒は、第４熱交換パス(P4)の熱交換管(8)内を右方に流れる間に過冷却された後、第３ヘッダタンク(12)の第８ヘッダ部(24)内に入り、冷媒出口(29)および出口部材(31)を通って外部に流出し、膨張弁を経てエバポレータに送られる。
実施形態２
この実施形態は図５および図６に示すものである。 The refrigerant that has flowed into the sixth header portion (22) of the fourth header tank (13) passes through the communication member (25) into the liquid receiver (7), and is stored in the liquid receiver (7). The phases are separated into a phase and a liquid phase, and the liquid phase is accumulated in the seventh header part (23). The liquid-phase refrigerant stored in the seventh header section (23) is supercooled while flowing rightward in the heat exchange pipe (8) of the fourth heat exchange path (P4), and then the third header. It enters into the eighth header portion (24) of the tank (12), flows out through the refrigerant outlet (29) and the outlet member (31), and is sent to the evaporator through the expansion valve.
Embodiment 2
This embodiment is shown in FIG. 5 and FIG.

図５はこの発明の実施形態２のコンデンサの全体構成を模式的に示し、図６は図５のコンデンサを展開して分かり易く示す。図５および図６においては、個々の熱交換管の図示は省略されるとともに、コルゲートフィン、サイドプレート、入口部材および出口部材の図示も省略されている。 FIG. 5 schematically shows the overall configuration of the capacitor according to the second embodiment of the present invention, and FIG. 6 shows the capacitor of FIG. 5 in an easily understandable manner. 5 and FIG. 6, illustration of individual heat exchange tubes is omitted, and illustration of corrugated fins, side plates, inlet members and outlet members is also omitted.

図５および図６において、コンデンサ(35)の第２熱交換部(4)の左端側に配置され、かつ第３ヘッダ部(18)および第６ヘッダ部(22)が設けられている第４ヘッダタンク(37)は、第１熱交換部(2)の左端側に配置され、かつ第２ヘッダ部(17)が設けられている第２ヘッダタンク(36)とは別個に設けられている。第２ヘッダタンク(36)の第２ヘッダ部(17)内と第４ヘッダタンク(37)の第４ヘッダ部(19)内とは連通部材(38)を介して通じさせられている。また、第４ヘッダタンク(37)の第３ヘッダ部(18)と第６ヘッダ部(22)との間には仕切部材(39)が設けられている。 5 and 6, the condenser 35 is arranged on the left end side of the second heat exchange part 4 and is provided with a third header part 18 and a sixth header part 22. The header tank (37) is provided on the left end side of the first heat exchange section (2) and is provided separately from the second header tank (36) provided with the second header section (17). . The inside of the second header part (17) of the second header tank (36) and the inside of the fourth header part (19) of the fourth header tank (37) are communicated with each other through a communication member (38). Further, a partition member (39) is provided between the third header portion (18) and the sixth header portion (22) of the fourth header tank (37).

その他の構成は実施形態１のコンデンサ(1)と同様である。
実施形態３
この実施形態は図７および図８に示すものである。 Other configurations are the same as those of the capacitor (1) of the first embodiment.
Embodiment 3
This embodiment is shown in FIG. 7 and FIG.

図７はこの発明の実施形態３のコンデンサの全体構成を模式的に示し、図８は図７のコンデンサを展開して分かり易く示す。図７および図８においては、個々の熱交換管の図示は省略されるとともに、コルゲートフィン、サイドプレート、入口部材および出口部材の図示も省略されている。 FIG. 7 schematically shows the overall configuration of the capacitor according to Embodiment 3 of the present invention, and FIG. 8 shows the capacitor shown in FIG. 7 in an easy-to-understand manner. 7 and FIG. 8, illustration of individual heat exchange tubes is omitted, and illustration of corrugated fins, side plates, inlet members and outlet members is also omitted.

図７および図８において、コンデンサ(40)の第２熱交換部(4)における第２凝縮部(5)の第３熱交換パス(P3)の冷媒流れ方向下流側に通じかつ第３熱交換パス(P3)から冷媒が流入する第６ヘッダ部(41)は、第２熱交換部(4)の過冷却部(6)よりも上方の部分において受液器(7)内に設けられている。すなわち、第６ヘッダ部(41)は、受液器(7)内において、第２熱交換部(4)の過冷却部(6)の第４熱交換パス(P4)に通じかつ第４熱交換パス(P4)に冷媒を流出する第７ヘッダ部(23)の上方に設けられており、第６ヘッダ部(41)と第７ヘッダ部(23)とは受液器(7)内で通じさせられている。そして、受液器(7)に、第３および第４熱交換パス(P3)(P4)の熱交換管(8)の左端部がろう付により接続されている。 7 and 8, the second heat exchange section (4) of the condenser (40) leads to the downstream side in the refrigerant flow direction of the third heat exchange path (P3) of the second condensing section (5) and the third heat exchange. The sixth header part (41) into which the refrigerant flows from the path (P3) is provided in the liquid receiver (7) at a portion above the supercooling part (6) of the second heat exchange part (4). Yes. That is, the sixth header part (41) is connected to the fourth heat exchange path (P4) of the supercooling part (6) of the second heat exchange part (4) and the fourth heat in the receiver (7). It is provided above the seventh header part (23) through which the refrigerant flows out to the exchange path (P4), and the sixth header part (41) and the seventh header part (23) are provided in the liquid receiver (7). It is made to communicate. And the left end part of the heat exchange pipe | tube (8) of the 3rd and 4th heat exchange path | pass (P3) (P4) is connected to the liquid receiver (7) by brazing.

また、第２熱交換部(4)の左端側において、第２ヘッダタンク(11)の通風方向上流側に並ぶように配置された第４ヘッダタンク(42)は、第２ヘッダタンク(11)と一体に設けられており、第２熱交換パス(P2)の熱交換管(8)の左端部がろう付により接続されている。第４ヘッダタンク(42)の上端は第１〜第３ヘッダタンク(10)(11)(12)の上端と同一高さ位置にあり、同下端は、第２熱交換部(4)の第２凝縮部(5)の第３熱交換パス(P3)の上端よりも上方の高さ位置にあり、第４ヘッダタンク(42)の全体に、第２凝縮部(5)の第２熱交換パス(P2)（第２凝縮部(5)の冷媒流れ方向最上流側熱交換パス)の冷媒流れ方向上流側に通じかつ第１熱交換部(2)の第２ヘッダ部(17)から冷媒が流入する第３ヘッダ部(18)が設けられている。第２ヘッダタンク(11)の第２ヘッダ部(17)内と第４ヘッダタンク(42)の第３ヘッダ部(18)内とは連通状態となっている。 Further, on the left end side of the second heat exchange section (4), the fourth header tank (42) arranged so as to be arranged upstream of the second header tank (11) in the ventilation direction is the second header tank (11). The left end of the heat exchange pipe (8) of the second heat exchange path (P2) is connected by brazing. The upper end of the fourth header tank (42) is at the same height as the upper ends of the first to third header tanks (10), (11) and (12), and the lower end is the second heat exchange part (4). 2 The second heat exchange of the second condensing unit (5) is located above the upper end of the third heat exchanging path (P3) of the condensing unit (5), and the second header tank (42) is entirely in the second heat exchanging unit (5). Refrigerant from the second header part (17) of the first heat exchange part (2) and leading to the upstream side of the refrigerant flow direction of the path (P2) (the most upstream heat exchange path in the refrigerant flow direction of the second condensing part (5)) Is provided with a third header portion (18). The second header section (17) of the second header tank (11) and the third header section (18) of the fourth header tank (42) are in communication.

その他の構成は実施形態１のコンデンサ(1)と同様である。 Other configurations are the same as those of the capacitor (1) of the first embodiment.

上述した構成のコンデンサ(40)を備えたカーエアコンにおいて、圧縮機により圧縮された高温高圧の気相冷媒が、入口部材(27)および冷媒入口(26)を通って第１ヘッダタンク(10)の第１ヘッダ部(16)内に流入し、第１熱交換パス(P1)の熱交換管(8)内を左方に流れて第２ヘッダタンク(11)の第２ヘッダ部(17)内に流入する。第２ヘッダ部(17)内に流入した冷媒は、第４ヘッダタンク(42)の第３ヘッダ部(18)内に入った後、第２熱交換パス(P2)の熱交換管(8)内を右方に流れて第３ヘッダタンク(12)の第４ヘッダ部(19)内に流入する。第４ヘッダ部(19)内に流入した冷媒は、第５ヘッダ部(21)内に入った後、第３熱交換パス(P3)の熱交換管(8)内を左方に流れて受液器(7)の第６ヘッダ部(41)内に流入する。 In the car air conditioner provided with the condenser (40) having the above-described configuration, the high-temperature and high-pressure gas-phase refrigerant compressed by the compressor passes through the inlet member (27) and the refrigerant inlet (26), and the first header tank (10). Flows into the first header portion (16) of the first header, and flows leftward in the heat exchange pipe (8) of the first heat exchange path (P1) to the second header portion (17) of the second header tank (11). Flows in. The refrigerant flowing into the second header part (17) enters the third header part (18) of the fourth header tank (42), and then the heat exchange pipe (8) of the second heat exchange path (P2). It flows rightward inside and flows into the fourth header portion (19) of the third header tank (12). The refrigerant flowing into the fourth header part (19) enters the fifth header part (21), and then flows to the left in the heat exchange pipe (8) of the third heat exchange path (P3). It flows into the sixth header part (41) of the liquid container (7).

受液器(7)の第６ヘッダ部(41)内に流入した冷媒は、受液器(7)内おいて気相と液相とに分離され、液相が第７ヘッダ部(23)内に溜られる。第７ヘッダ部(23)内に溜められた液相の冷媒は、第４熱交換パス(P4)の熱交換管(8)内を右方に流れる間に過冷却された後、第３ヘッダタンク(12)の第８ヘッダ部(24)内に入り、冷媒出口(29)および出口部材(31)を通って外部に流出し、膨張弁を経てエバポレータに送られる。
実施形態４
この実施形態は図９および図１０に示すものである。 The refrigerant flowing into the sixth header part (41) of the liquid receiver (7) is separated into a gas phase and a liquid phase in the liquid receiver (7), and the liquid phase is separated into the seventh header part (23). Accumulated in. The liquid-phase refrigerant stored in the seventh header section (23) is supercooled while flowing rightward in the heat exchange pipe (8) of the fourth heat exchange path (P4), and then the third header. It enters into the eighth header portion (24) of the tank (12), flows out through the refrigerant outlet (29) and the outlet member (31), and is sent to the evaporator through the expansion valve.
Embodiment 4
This embodiment is shown in FIG. 9 and FIG.

図９はこの発明の実施形態４のコンデンサの全体構成を模式的に示し、図１０は図９のコンデンサを展開して分かり易く示す。図９および図１０においては、個々の熱交換管の図示は省略されるとともに、コルゲートフィン、サイドプレート、入口部材および出口部材の図示も省略されている。 FIG. 9 schematically shows the overall configuration of the capacitor according to Embodiment 4 of the present invention, and FIG. 10 shows the capacitor shown in FIG. 9 in an easy-to-understand manner. In FIGS. 9 and 10, illustration of individual heat exchange tubes is omitted, and illustration of corrugated fins, side plates, inlet members, and outlet members is also omitted.

図９および図１０において、コンデンサ(45)の第２熱交換部(4)の左端側に配置され、かつ第３ヘッダ部(18)が設けられている第４ヘッダタンク(47)は、第１熱交換部(2)の左端側に配置され、かつ第２ヘッダ部(17)が設けられている第２ヘッダタンク(46)とは別個に設けられており、第２ヘッダタンク(46)の第２ヘッダ部(17)内と第４ヘッダタンク(47)の第３ヘッダ部(18)内とが連通部材(48)を介して通じさせられている。 9 and 10, the fourth header tank (47) disposed on the left end side of the second heat exchange part (4) of the condenser (45) and provided with the third header part (18) is 1 The second header tank (46) is provided separately from the second header tank (46) disposed on the left end side of the heat exchange section (2) and provided with the second header section (17). The inside of the second header portion (17) and the inside of the third header portion (18) of the fourth header tank (47) are communicated with each other via a communication member (48).

その他の構成は実施形態３のコンデンサ(40)と同様である。 Other configurations are the same as those of the capacitor (40) of the third embodiment.

この発明によるコンデンサは、自動車に搭載されるカーエアコンに好適に用いられる。 The capacitor | condenser by this invention is used suitably for the car air conditioner mounted in a motor vehicle.

(1)(40)(45)：コンデンサ
(2)：第１熱交換部
(3)：第１凝縮部
(4)：第２熱交換部
(5)：第２凝縮部
(6)：過冷却部
(7)：受液器
(8)：熱交換管
(10)：第１ヘッダタンク
(11)(36)(46)：第２ヘッダタンク
(12)：第３ヘッダタンク
(13)(37)(42)(47)：第４ヘッダタンク
(14)：コルゲートフィン
(14a)：波頂部
(14b)：波底部
(14c)：連結部
(16)：第１ヘッダ部
(17)：第２ヘッダ部
(18)：第３ヘッダ部
(19)：第４ヘッダ部
(21)：第５ヘッダ部
(22)(41)：第６ヘッダ部
(23)：第７ヘッダ部
(24)：第８ヘッダ部
(25)：連通部材
(P1)(P2)(P3)(P4)：熱交換パス
(F1)(F2)：フィンピッチ (1) (40) (45): Capacitor
(2): First heat exchange section
(3): 1st condensing part
(4): Second heat exchange section
(5): Second condensing part
(6): Supercooling section
(7): Receiver
(8): Heat exchange pipe
(10): First header tank
(11) (36) (46): 2nd header tank
(12): Third header tank
(13) (37) (42) (47): Fourth header tank
(14): Corrugated fin
(14a): Wave peak
(14b): Wave bottom
(14c): Connection part
(16): First header
(17): Second header
(18): Third header
(19): Fourth header
(21): Fifth header part
(22) (41): 6th header
(23): 7th header
(24): Eighth header
(25): Communication member
(P1) (P2) (P3) (P4): Heat exchange path
(F1) (F2): Fin pitch

Claims

全体が凝縮部からなる第１熱交換部と、凝縮部および凝縮部の下方に設けられた過冷却部からなりかつ第１熱交換部の風上側に設けられた第２熱交換部と、第２熱交換部の凝縮部と過冷却部との間に設けられ、かつ長手方向を上下方向に向けた筒状の受液器とを備えており、第１熱交換部に、長手方向を左右方向に向けるとともに上下方向に間隔をおいて並列状に配置された複数の熱交換管からなる奇数の熱交換パスが設けられ、第２熱交換部の凝縮部に、長手方向を左右方向に向けるとともに上下方向に間隔をおいて並列状に配置された複数の熱交換管からなる偶数の熱交換パスが設けられ、第２熱交換部の過冷却部に、長手方向を左右方向に向けるとともに上下方向に間隔をおいて並列状に配置された複数の熱交換管からなる奇数の熱交換パスが設けられており、第１熱交換部の凝縮部および第２熱交換部の凝縮部を通過した冷媒が、受液器を経て第２熱交換部の過冷却部に流入するようになされており、
第１熱交換部が、外部から冷媒が流入しかつ第１熱交換部の冷媒流れ方向最上流側熱交換パスに通じる第１ヘッダ部、および第１熱交換部の冷媒流れ方向最下流側熱交換パスに通じかつ第２熱交換部の凝縮部に冷媒が流出する第２ヘッダ部を備え、
第２熱交換部が、第２熱交換部の凝縮部の冷媒流れ方向最上流側熱交換パスに通じかつ第１熱交換部の第２ヘッダ部から冷媒が流入する第３ヘッダ部、第２熱交換部の凝縮部の冷媒流れ方向最上流側熱交換パスに通じかつ当該熱交換パスから冷媒が流入する第４ヘッダ部、第２熱交換部の凝縮部の冷媒流れ方向最下流側熱交換パスに通じかつ当該熱交換パスに冷媒を流出する第５ヘッダ部、第２熱交換部の凝縮部の冷媒流れ方向最下流側熱交換パスに通じかつ当該熱交換パスから冷媒が流入する第６ヘッダ部、第２熱交換部の過冷却部の冷媒流れ方向最上流側熱交換パスに通じかつ当該熱交換パスに冷媒を流出する第７ヘッダ部、および第２熱交換部の過冷却部の冷媒流れ方向最下流側熱交換パスに通じかつ外部に冷媒を流出する第８ヘッダ部を備え、
第２ヘッダ部と第３ヘッダ部、および第６ヘッダ部と第７ヘッダ部とが通じさせられ、受液器の上端が第２熱交換部の凝縮部の最下流側熱交換パスの上端よりも上方に位置するとともに、受液器の下端が第２熱交換部の凝縮部の最下流側熱交換パスの下端よりも下方に位置しているコンデンサ。 A first heat exchanging unit consisting entirely of a condensing unit, a second heat exchanging unit comprising a condensing unit and a supercooling unit provided below the condensing unit and provided on the windward side of the first heat exchanging unit, 2 It is provided between the condensing part and the supercooling part of the heat exchanging part, and is provided with a cylindrical liquid receiver whose longitudinal direction is directed in the up and down direction. An odd number of heat exchange paths composed of a plurality of heat exchange tubes arranged in parallel with an interval in the vertical direction are provided, and the longitudinal direction is directed in the left-right direction to the condensing part of the second heat exchange part And an even-numbered heat exchange path composed of a plurality of heat exchange tubes arranged in parallel at intervals in the vertical direction, with the longitudinal direction facing the left-right direction and the vertical direction at the supercooling portion of the second heat exchange portion Odd number of heat exchanges consisting of a plurality of heat exchange tubes arranged in parallel at intervals in the direction A path is provided so that the refrigerant that has passed through the condensing part of the first heat exchanging part and the condensing part of the second heat exchanging part flows into the supercooling part of the second heat exchanging part via the liquid receiver. And
The first heat exchanging section includes a first header section in which refrigerant flows in from the outside and communicates with the most upstream heat exchange path in the refrigerant flow direction of the first heat exchange section, and the most downstream heat in the refrigerant flow direction of the first heat exchange section. A second header part that leads to the exchange path and from which the refrigerant flows out to the condensing part of the second heat exchange part;
A third header part through which the second heat exchange part communicates with the most upstream heat exchange path in the refrigerant flow direction of the condenser part of the second heat exchange part and into which the refrigerant flows from the second header part of the first heat exchange part; The fourth header part through which the refrigerant flows in the most upstream side heat exchange path in the refrigerant flow direction of the condenser part of the heat exchange part and the refrigerant flows in from the heat exchange path, and the most downstream side heat exchange in the refrigerant flow direction of the condenser part of the second heat exchange part A fifth header part that leads to the path and flows out of the refrigerant to the heat exchange path; a sixth header part that leads to the heat exchange path on the most downstream side in the refrigerant flow direction of the condensing part of the second heat exchange part and flows in from the heat exchange path; A header part, a seventh header part that leads to the most upstream heat exchange path in the refrigerant flow direction of the supercooling part of the second heat exchange part and flows out the refrigerant to the heat exchange path, and a supercooling part of the second heat exchange part An eighth header that leads to the heat exchange path on the most downstream side in the refrigerant flow direction and flows out the refrigerant to the outside Equipped with a,
The second header portion and the third header portion, and the sixth header portion and the seventh header portion are communicated, and the upper end of the liquid receiver is higher than the upper end of the most downstream heat exchange path of the condensing portion of the second heat exchange portion. And the lower end of the liquid receiver are located below the lower end of the most downstream heat exchange path of the condensing part of the second heat exchange part.

第２熱交換部の第６ヘッダ部が、第２熱交換部の過冷却部よりも上方の部分において受液器と別個に設けられ、同じく第７ヘッダ部が、第２熱交換部の凝縮部の下方の部分において受液器に設けられ、第６ヘッダ部と、受液器における第７ヘッダ部よりも上方の部分とが連通部材により通じさせられ、受液器における当該連通部材が通じている部分と第７ヘッダ部とが通じさせられている請求項１記載のコンデンサ。 The 6th header part of the 2nd heat exchange part is provided separately from the liquid receiver in the part above the supercooling part of the 2nd heat exchange part, and the 7th header part is the condensation of the 2nd heat exchange part. Provided in the liquid receiver in the lower part of the part, the sixth header part and the part above the seventh header part in the liquid receiver are communicated by the communication member, and the communication member in the liquid receiver is communicated. The capacitor according to claim 1, wherein the connected portion is communicated with the seventh header portion.

第１熱交換部の左右いずれか一端側に第１ヘッダタンクが配置されるとともに、同他端側に第２ヘッダタンクが配置され、第２熱交換部の左右いずれか一端側に、第３ヘッダタンクが第１ヘッダタンクと通風方向に並ぶように配置されるとともに、同他端側に、第４ヘッダタンクが第２ヘッダタンクと通風方向に並ぶように配置され、第１ヘッダタンクに第１ヘッダ部が設けられるとともに、第２ヘッダタンクに第２ヘッダ部が設けられ、第３ヘッダタンクに、第４ヘッダ部、第５ヘッダ部および第８ヘッダ部が、第４ヘッダ部と第５ヘッダ部とが連通状となるとともに第５ヘッダ部と第８ヘッダ部とが非連通状となるように設けられ、第４ヘッダタンクに第３ヘッダ部および第６ヘッダ部が非連通状となるように設けられ、第４ヘッダタンクの下端が第２熱交換部の凝縮部の冷媒流れ方向最下流側熱交換パスと過冷却部の冷媒流れ方向最上流側熱交換パスとの間に位置し、受液器が、第２ヘッダタンクおよび第４ヘッダタンクよりも左右方向外側に配置されている請求項２記載のコンデンサ。 A first header tank is disposed on one of the left and right ends of the first heat exchange section, and a second header tank is disposed on the other end of the first heat exchange section. The header tank is arranged so as to be aligned with the first header tank in the ventilation direction, and on the other end side, the fourth header tank is arranged so as to be aligned with the second header tank in the ventilation direction. 1 header portion is provided, the second header tank is provided with the second header portion, the third header tank is provided with the fourth header portion, the fifth header portion, and the eighth header portion, the fourth header portion and the fifth header portion. The fifth header portion and the eighth header portion are provided so as to be in communication with the header portion, and the third header portion and the sixth header portion are not connected to the fourth header tank. The fourth header tongue Is located between the most downstream heat exchange path in the refrigerant flow direction of the condensing part of the second heat exchange part and the most upstream heat exchange path in the refrigerant flow direction of the supercooling part, and the receiver is the second header. The capacitor according to claim 2, wherein the capacitor is disposed on the outer side in the left-right direction with respect to the tank and the fourth header tank.

第２ヘッダタンクと第４ヘッダタンクとが一体に設けられている請求項３記載のコンデンサ。 The capacitor according to claim 3, wherein the second header tank and the fourth header tank are provided integrally.

第２熱交換部の第６ヘッダ部が、第２熱交換部の過冷却部よりも上方の部分において受液器に設けられ、同じく第７ヘッダ部が、第２熱交換部の凝縮部の最下流側熱交換パスの下端よりも下方に位置する部分において受液器に設けられ、第６ヘッダ部と第７ヘッダ部とが受液器内で通じさせられている請求項１記載のコンデンサ。 The sixth header part of the second heat exchange part is provided in the liquid receiver in the part above the supercooling part of the second heat exchange part, and the seventh header part is also the condensing part of the second heat exchange part. The capacitor according to claim 1, wherein the condenser is provided in the receiver in a portion located below the lower end of the most downstream heat exchange path, and the sixth header portion and the seventh header portion are communicated in the receiver. .

第１熱交換部の左右いずれか一端側に第１ヘッダタンクが配置されるとともに、同他端側に第２ヘッダタンクが配置され、第２熱交換部の左右いずれか一端側に、第３ヘッダタンクが第１ヘッダタンクと通風方向に並ぶように配置されるとともに、同他端側に、第４ヘッダタンクが第２ヘッダタンクと通風方向に並ぶように配置され、第１ヘッダタンクに第１ヘッダ部が設けられるとともに、第２ヘッダタンクに第２ヘッダ部が設けられ、第３ヘッダタンクに、第４ヘッダ部、第５ヘッダ部および第８ヘッダ部が、第４ヘッダ部と第５ヘッダ部とが連通状となるとともに第５ヘッダ部と第８ヘッダ部とが非連通状となるように設けられ、第４ヘッダタンクに第３ヘッダ部が設けられ、第４ヘッダタンクの下端が、第２熱交換部の凝縮部の冷媒流れ方向最下流側熱交換パスの上端よりも上方に位置し、受液器が、第２ヘッダタンクおよび第４ヘッダタンクよりも左右方向外側に配置されている請求項５記載のコンデンサ。 A first header tank is disposed on one of the left and right ends of the first heat exchange section, and a second header tank is disposed on the other end of the first heat exchange section. The header tank is arranged so as to be aligned with the first header tank in the ventilation direction, and on the other end side, the fourth header tank is arranged so as to be aligned with the second header tank in the ventilation direction. 1 header portion is provided, the second header tank is provided with the second header portion, the third header tank is provided with the fourth header portion, the fifth header portion, and the eighth header portion, the fourth header portion and the fifth header portion. The header section is in communication with the fifth header section and the eighth header section in non-communication, the third header section is provided in the fourth header tank, and the lower end of the fourth header tank is The refrigerant of the condensing part of the second heat exchange part Re-direction than the upper end of the most downstream side heat exchange path located above, receiver is a second header tank and a capacitor according to claim 5, characterized in that arranged in the left-right direction outer side than the fourth header tank.

第２ヘッダタンクと第４ヘッダタンクとが一体に設けられている請求項６記載のコンデンサ。 The capacitor according to claim 6, wherein the second header tank and the fourth header tank are provided integrally.

第１熱交換部の凝縮部に１つの熱交換パスが設けられ、第２熱交換部の凝縮部に２つの熱交換パスが設けられるとともに、第２熱交換部の過冷却部に１つの熱交換パスが設けられ、第１ヘッダタンク全体に第１ヘッダ部が設けられ、第２ヘッダタンク全体に第２ヘッダ部が設けられている請求項３、４、６または７に記載のコンデンサ。 One heat exchange path is provided in the condensing part of the first heat exchange part, two heat exchange paths are provided in the condensing part of the second heat exchange part, and one heat is provided in the subcooling part of the second heat exchange part. 8. The capacitor according to claim 3, 4, 6, or 7, wherein an exchange path is provided, the first header portion is provided in the entire first header tank, and the second header portion is provided in the entire second header tank.

第１熱交換部および第２熱交換部において、隣り合う熱交換管どうしの間および上下両端の外側に、波頂部、波底部、および波頂部と波底部とを結ぶ連結部よりなるコルゲートフィンが配置されており、第２熱交換部のコルゲートフィンにおける隣り合う波頂部どうしの間隔であるフィンピッチが、第１熱交換部のコルゲートフィンにおける隣り合う波頂部どうしの間隔であるフィンピッチよりも大きくなっている請求項１〜８のうちのいずれかに記載のコンデンサ。 In the first heat exchange unit and the second heat exchange unit, corrugated fins including wave crests, wave bottoms, and connecting portions connecting the wave crests and the wave bottoms are provided between adjacent heat exchange tubes and outside the upper and lower ends. The fin pitch, which is an interval between adjacent wave crests in the corrugated fins of the second heat exchange unit, is larger than the fin pitch, which is the interval between adjacent wave crests in the corrugated fins of the first heat exchange unit. The capacitor according to any one of claims 1 to 8.