JP2003042601A - Liquid receiver - Google Patents
Liquid receiverInfo
- Publication number
- JP2003042601A JP2003042601A JP2001234017A JP2001234017A JP2003042601A JP 2003042601 A JP2003042601 A JP 2003042601A JP 2001234017 A JP2001234017 A JP 2001234017A JP 2001234017 A JP2001234017 A JP 2001234017A JP 2003042601 A JP2003042601 A JP 2003042601A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- liquid
- receiver
- liquid receiver
- condenser
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/044—Condensers with an integrated receiver
- F25B2339/0441—Condensers with an integrated receiver containing a drier or a filter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/02—Subcoolers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、凝縮後の冷媒の気
液を分離して液冷媒を溜める受液器に関するものであ
り、特に受液器内に配設される乾燥手段（ドライヤ）の
構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid receiver that separates gas and liquid of a condensed refrigerant to store a liquid refrigerant, and particularly relates to a drying means (dryer) provided in the liquid receiver. Regarding the structure.
【０００２】[0002]
【従来の技術】従来、この種の受液器として、例えば特
開平８−２１９５８８号公報に記載されているものがあ
る。この公報記載の従来技術では、図９（ａ）に示すよ
うに、複数の冷媒通路１００が並列に配設され、その各
冷媒通路１００を流れる冷媒と熱交換媒体との熱交換を
行なうコア部１１０と、各冷媒通路１００の両端部にそ
れぞれ連通して設けられた一対のヘッダ１２０とを有
し、その一対のヘッダ１２０のうち少なくとも一方のヘ
ッダ１２０に、受液器１３０を一体に構成されている。
この受液器１３０内部の空間とヘッダ１２０とをヘッダ
１２０に設けた第１連通口１３０ａにて連通させ、コア
部１１０にて凝縮した液冷媒を第１連通口１３０ａを通
して受液器１３０内部に流入させ、受液器１３０内部に
おいて冷媒の気液を分離して液冷媒を蓄える。2. Description of the Related Art Conventionally, as this type of liquid receiver, for example, there is one described in Japanese Patent Application Laid-Open No. 8-219588. In the prior art described in this publication, as shown in FIG. 9A, a plurality of refrigerant passages 100 are arranged in parallel, and a core portion for exchanging heat between the refrigerant flowing through each refrigerant passage 100 and a heat exchange medium. 110 and a pair of headers 120 provided at both ends of each refrigerant passage 100 so as to communicate with each other. At least one of the headers 120 of the pair of headers 120 is integrally configured with a liquid receiver 130. ing.
The space inside the liquid receiver 130 and the header 120 are communicated with each other through the first communication port 130a provided in the header 120, and the liquid refrigerant condensed in the core part 110 is introduced into the liquid receiver 130 through the first communication port 130a. The liquid refrigerant is caused to flow into the receiver 130 to separate the gas and liquid of the refrigerant and store the liquid refrigerant.
【０００３】そして、第１連通口１３０ａよりも下方側
に設けられた第２連通口１３０ｂを通してヘッダ１２０
の下方部に流入させ、コア部１１０にて過冷却した後
に、一方のヘッダを経由して受液器の外部に流出させて
いる。Then, the header 120 is passed through a second communication port 130b provided below the first communication port 130a.
Is flowed into the lower part of the receiver, is supercooled in the core part 110, and is then discharged to the outside of the liquid receiver via one of the headers.
【０００４】なお、上記公報では記載がされていない
が、この受液器１３０の内部は、気液を分離して液冷媒
を蓄えるとともに、水分を吸着する乾燥手段１４０が第
１連通口１３０ａ近傍から上方に向けて装填され、その
下流側の第２連通口１３０ｂの上流側に異物を除去する
フィルタ手段１５０が配設されて、液冷媒中に含まれる
水分および異物を除去するようになっている。Although not described in the above publication, inside the liquid receiver 130, a drying means 140 for separating gas and liquid to store a liquid refrigerant and adsorbing moisture is provided in the vicinity of the first communication port 130a. From above, the filter means 150 for removing foreign matters is arranged on the upstream side of the second communication port 130b on the downstream side thereof to remove water and foreign matters contained in the liquid refrigerant. There is.
【０００５】そして、前者の乾燥手段１４０は、一般的
に、図９（ｂ）に示すように、フェルト材１４０ａを縫
製によって袋状にして内部に小径の球状の粒子に形成さ
れたゼオライトなどの吸着部材１４０ｂを詰め込んだの
ち再び縫製によって閉じて袋状に形成されている。そし
て、この袋状の形態で受液器１３０の下方端から受液器
１３０内部の上方に向けて挿入して装填されている。In the former drying means 140, generally, as shown in FIG. 9 (b), a felt material 140a is sewn into a bag shape, and a zeolite or the like formed into spherical particles having a small diameter is formed therein. The suction member 140b is packed and then closed again by sewing to form a bag shape. Then, the bag-shaped form is inserted and loaded from the lower end of the liquid receiver 130 toward the upper part inside the liquid receiver 130.
【０００６】一方、後者のフィルタ手段１５０は、乾燥
手段１４０の下側に配設されるものであって、図９
（ｃ）に示すように、略円筒状に形成され、上方から順
にフィルタ部１５０ａ、ネジ部１５０ｂ、気密部１５０
ｃおよびナット部１５０ｄより構成されている。このう
ちのフィルタ部１５０ａは上方の外周面に設けられてい
て、フィルタ手段１５０の上面から第２連通口１３０ｂ
に向けて流出されるようにフィルタ手段１５０が下方端
から挿入されて配設されている。これにより、乾燥手段
１４０とフィルタ手段１５０とは、吸着性能およびフィ
ルタ性能が低下した頃に交換ができるように構成されて
いる。On the other hand, the latter filter means 150 is arranged below the drying means 140 and is shown in FIG.
As shown in (c), the filter portion 150a, the screw portion 150b, and the airtight portion 150 are formed in a substantially cylindrical shape in this order from above.
It is composed of c and a nut portion 150d. Of these, the filter portion 150a is provided on the upper outer peripheral surface and extends from the upper surface of the filter means 150 to the second communication port 130b.
The filter means 150 is disposed so as to be discharged toward the front end from the lower end. As a result, the drying means 140 and the filter means 150 are configured so that they can be replaced when the adsorption performance and the filter performance deteriorate.
【０００７】[0007]
【発明が解決しようとする課題】ところが、上記構成に
よれば、袋状に形成された乾燥手段１４０は、第１連通
口１３０ａの近傍から上方に向けて装填するように、受
液器１３０の下方端から挿入するのみであるため、第１
連通口１３０ａから上方にかけて、受液器１３０の内壁
面と乾燥手段１４０との装填後の空間が成り行きとなる
ために、その空間が０から５ｍｍ程度の狭い空間が形成
されて、第１連通口１３０ａから流入して上方に向かう
冷媒が受液器１３０内部で淀んでしまう問題がある。However, according to the above configuration, the bag-shaped drying means 140 is installed in the liquid receiver 130 so as to be loaded upward from the vicinity of the first communication port 130a. Since it is only inserted from the lower end,
Since the space between the inner wall surface of the liquid receiver 130 and the drying means 140 after loading from the communication port 130a becomes a continuous space, a narrow space of about 0 to 5 mm is formed, and the first communication port is formed. There is a problem that the refrigerant flowing in from 130a and traveling upward stagnates inside the liquid receiver 130.
【０００８】特に、受液器１３０周辺の温度が上昇して
くると内部の冷媒が受熱されやすくなる。この時に、凝
縮後の冷媒が受液器１３０内に流入され対流が不充分で
あると、受液器１３０内下方の液冷媒が蒸発しにくくな
り、受液器１３０内の上方に位置する冷媒ガスが液冷媒
の液面にて凝縮がし難いために液冷媒の液面レベルが低
下してしまう。この結果、受液器１３０内の冷媒封入特
性が大幅に悪化してしまう。Particularly, when the temperature around the liquid receiver 130 rises, the internal refrigerant is likely to receive heat. At this time, if the condensed refrigerant flows into the receiver 130 and the convection is insufficient, the liquid refrigerant in the lower part of the receiver 130 is less likely to evaporate, and the refrigerant located in the upper part of the receiver 130 is less likely to evaporate. Since the gas is difficult to condense on the liquid surface of the liquid refrigerant, the liquid surface level of the liquid refrigerant is lowered. As a result, the refrigerant sealing characteristic in the liquid receiver 130 is significantly deteriorated.
【０００９】また、袋状に形成された乾燥手段１４０を
受液器１３０内に挿入する際に、受液器１３０の下端に
形成されたネジ部などの狭い部分を挿入させる組付性の
問題もある。Also, when the bag-shaped drying means 140 is inserted into the liquid receiver 130, a problem of assemblability in which a narrow portion such as a screw portion formed at the lower end of the liquid receiver 130 is inserted. There is also.
【００１０】そこで、本発明の目的は、上記点を鑑みて
なされたもので、受液器内に液冷媒が対流できる空間を
確実に形成できる構造の乾燥手段を配設することによ
り、受液器が受熱した時でも冷媒封入特性が良好な受液
器を提供するものである。Therefore, an object of the present invention is to solve the above problems by providing a drying means having a structure capable of surely forming a convection space for the liquid refrigerant in the liquid receiver. It is intended to provide a liquid receiver having a good refrigerant enclosing property even when the container receives heat.
【００１１】[0011]
【課題を解決するための手段】上記目的を達成するた
め、請求項１ないし請求項６に記載の技術的手段を採用
する。すなわち、請求項１および請求項２に記載の発明
では、冷媒圧縮機（１）から吐出された過熱冷媒ガスを
冷却して凝縮する凝縮器（３６）に接続され、凝縮後の
冷媒を下方から流入して気液を分離し液冷媒を溜め下方
から流出する受液器（３１）であって、受液器（３１）
内に配設され、液冷媒中の水分を吸着する乾燥手段（３
１４）と、この乾燥手段（３１４）の冷媒流れの下流側
に配設され、冷媒中の異物を除去するフィルタ手段（３
１５）とを備え、この乾燥手段（３１４）は、水分を吸
着する吸着材を用い焼結加工により略柱状に形成され、
かつ受液器（３１）の内壁面に所定の空間（３４）を有
するように配設されることを特徴としている。In order to achieve the above object, the technical means described in claims 1 to 6 is adopted. That is, in the invention described in claims 1 and 2, the refrigerant is connected to a condenser (36) that cools and condenses the superheated refrigerant gas discharged from the refrigerant compressor (1), and the refrigerant after condensation is supplied from below. A liquid receiver (31) which flows in to separate gas-liquid, collects liquid refrigerant, and flows out from below, the liquid receiver (31)
A drying means (3) which is disposed inside and adsorbs water in the liquid refrigerant.
14) and a filter means (3) arranged downstream of the refrigerant flow of the drying means (314) for removing foreign matters in the refrigerant.
15) and the drying means (314) is formed into a substantially columnar shape by sintering using an adsorbent that adsorbs moisture.
In addition, the liquid receiving device (31) is characterized in that it is arranged so as to have a predetermined space (34) on the inner wall surface.
【００１２】請求項１および請求項２に記載の発明によ
れば、受液器（３１）内に配設する乾燥手段（３１４）
を、例えばゼオライトなどの吸着材を用い焼結加工によ
り略柱状に形成されることにより、従来、袋状に形成さ
れたものと比較して小型化が図れる。これにより、受液
器（３１）の内壁面と乾燥手段（３１４）との空間（３
３４）を有することで、受液器（３１）内に流入される
凝縮後の冷媒が受液器（３１）内にて対流しやすいため
に、例えば受液器（３１）周辺の温度が上昇し内部の冷
媒が受熱され、通常であれば冷媒封入特性が悪化する場
合でも、冷媒が受液器（３１）内に流入して、対流によ
り液冷媒の液面にて受液器（３１）内上方の冷媒ガスが
凝縮されて液面レベルの低下を防止できる。この結果、
良好の冷媒封入特性が得られる。According to the first and second aspects of the invention, the drying means (314) arranged in the liquid receiver (31).
By, for example, being formed into a substantially columnar shape by sintering using an adsorbent such as zeolite, it is possible to reduce the size as compared with a conventional bag-shaped one. As a result, the space (3) between the inner wall surface of the liquid receiver (31) and the drying means (314).
34), the condensed refrigerant that flows into the receiver (31) easily convects inside the receiver (31), so that the temperature around the receiver (31) rises, for example. However, even if the refrigerant in the interior receives heat and the refrigerant encapsulation characteristics are usually deteriorated, the refrigerant flows into the liquid receiver (31) and is convected to the liquid surface of the liquid refrigerant (31). It is possible to prevent the refrigerant gas in the upper part from being condensed and the liquid level from being lowered. As a result,
Good refrigerant encapsulation characteristics are obtained.
【００１３】請求項３に記載の発明では、受液器（３
１）は、凝縮器（３６）と一体的に形成されている受液
器一体型の冷媒凝縮器であることを特徴としている。In the invention according to claim 3, the liquid receiver (3
1) is characterized in that it is a liquid receiver integrated refrigerant condenser that is integrally formed with the condenser (36).
【００１４】請求項３に記載の発明によれば、受液器
（３１）が凝縮器（３６）と一体的に形成されているこ
とにより、受液器（３１）と凝縮器（３６）との接続配
管の取り回しが簡素化され、小型の受液器一体型の冷媒
凝縮器が可能となる。According to the third aspect of the invention, since the liquid receiver (31) is formed integrally with the condenser (36), the liquid receiver (31) and the condenser (36) are connected to each other. The handling of the connecting pipe is simplified, and a small-sized receiver-integrated refrigerant condenser becomes possible.
【００１５】請求項４に記載の発明では、乾燥手段（３
１４）は、フィルタ手段（３１５）の上方に一体に結合
されたのち、受液器（３１）内に組付けられるように構
成されていることを特徴としている。In the invention described in claim 4, the drying means (3
14) is characterized in that the filter means (315) is integrally connected above the filter means (315) and then assembled in the liquid receiver (31).
【００１６】請求項４に記載の発明によれば、乾燥手段
（３１４）とフィルタ手段（３１５）を一体に結合され
ることにより、従来別々に組付けていた方法よりも組付
工数の低減が図れる。さらに、乾燥手段（３１４）が小
型化となっているため、受液器（３１）内への組付性が
向上する。According to the fourth aspect of the present invention, the drying means (314) and the filter means (315) are integrally connected, so that the number of assembling steps can be reduced as compared with the conventional method of separately assembling. Can be achieved. Further, since the drying means (314) is downsized, the assemblability in the liquid receiver (31) is improved.
【００１７】請求項５に記載の発明では、乾燥手段（３
１４）は、凝縮後の冷媒が受液器（３１）内の上方に向
けて流通するように案内溝（３１６）が設けられている
ことを特徴としている。In the invention described in claim 5, the drying means (3
14) is characterized in that a guide groove (316) is provided so that the condensed refrigerant flows upward in the liquid receiver (31).
【００１８】請求項５に記載の発明によれば、また、乾
燥手段（３１４）に案内溝（３１６）が設けられている
ことにより、請求項１および請求項２に述べた空間（３
４）を狭めても冷媒の流通に淀みなどの不具合が生じな
い。According to the invention described in claim 5, since the drying means (314) is provided with the guide groove (316), the space (3) described in claims 1 and 2 is provided.
Even if 4) is narrowed, there is no problem such as stagnation in the circulation of the refrigerant.
【００１９】請求項６に記載の発明では、乾燥手段（３
１４）は、吸着材の粒子密度を高めることで冷媒中の異
物を除去するフィルタ機能を有することを特徴としてい
る。In the invention described in claim 6, the drying means (3
14) is characterized by having a filter function of removing foreign matter in the refrigerant by increasing the particle density of the adsorbent.
【００２０】請求項６に記載の発明によれば、吸着材の
粒子密度を高めることにより、粒子密度を可変すること
で乾燥手段（３１４）の透過率の調整が可能となる。そ
こで、本発明では、この透過率を高め、この部分で冷媒
を流通させることでフィルタ機能を有することにより、
フィルタ手段（３１５）を不要とできるため、部品コス
トの低減ができるとともに、組付性が向上する。According to the sixth aspect of the present invention, the particle density of the adsorbent is increased, so that the particle density can be varied to adjust the transmittance of the drying means (314). Therefore, in the present invention, by increasing the transmittance, by having a filter function by circulating the refrigerant in this portion,
Since the filter means (315) can be dispensed with, the cost of parts can be reduced and the assemblability is improved.
【００２１】なお、上記各手段の括弧内の符号は、後述
する実施形態記載の具体的手段との対応関係を示すもの
である。The reference numerals in parentheses of the above-mentioned means indicate the correspondence with the concrete means described in the embodiments described later.
【００２２】[0022]
【発明の実施の形態】（第１実施形態）以下、本発明の
第１実施形態を図１ないし図３に基いて説明する。ま
ず、図１は、本発明を自動車用空調装置における冷凍サ
イクルに適用したものであり、凝縮器と受液器を一体と
した受液器一体型冷媒凝縮器および冷凍サイクルを示し
ている。BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) A first embodiment of the present invention will be described below with reference to FIGS. First, FIG. 1 is a view showing a refrigerant receiver-integrated refrigerant condenser and a refrigeration cycle in which the present invention is applied to a refrigeration cycle in an air conditioner for an automobile, in which a condenser and a liquid receiver are integrated.
【００２３】この冷凍サイクルＡは、冷媒圧縮機１、受
液器一体型冷媒凝縮器２、サイトグラス３、温度作動式
膨脹弁４、および冷媒蒸発器５の各機能部品より構成さ
れ、それぞれ金属製パイプあるいはゴム製パイプよりな
る冷媒配管によって順次接続した閉回路より構成されて
いる。The refrigerating cycle A is composed of a refrigerant compressor 1, a receiver-integrated refrigerant condenser 2, a sight glass 3, a temperature actuated expansion valve 4 and a refrigerant evaporator 5, each of which is made of metal and has a metal structure. It is composed of a closed circuit which is sequentially connected by a refrigerant pipe made of a pipe made of rubber or a pipe made of rubber.
【００２４】冷媒圧縮機１は、自動車のエンジンルーム
（図示しない）内に設置された走行用エンジン（図示し
ない）にベルトと電磁クラッチ１ａを介して連結されて
いる。この冷媒圧縮機１は、電磁クラッチ１ａが接続状
態となり、エンジンの回転動力が伝達されると、冷媒蒸
発器５下流側よりガス冷媒を吸入、圧縮して、高温高圧
の過熱ガス冷媒を受液器一体型冷媒凝縮器２へ吐出す
る。The refrigerant compressor 1 is connected to a running engine (not shown) installed in an engine room (not shown) of an automobile through a belt and an electromagnetic clutch 1a. In the refrigerant compressor 1, when the electromagnetic clutch 1a is in the connected state and the rotational power of the engine is transmitted, the refrigerant refrigerant is sucked and compressed from the refrigerant evaporator 5 downstream side to receive the high temperature and high pressure superheated gas refrigerant. It discharges to the container-integrated refrigerant condenser 2.
【００２５】受液器一体型冷媒凝縮器２は、冷媒圧縮機
１より吐出されたガス冷媒を冷却ファン（図示しない）
の送風を受けて凝縮液化する凝縮器である凝縮部３６、
この凝縮部３６で凝縮液化された気液二相冷媒をガス冷
媒と液冷媒とに分離する受液器３１、およびこの受液器
３１で分離された液冷媒を冷却ファン（図示しない）の
送風を受けて過冷却する過冷却部３７より構成される。
なお、受液器一体型冷媒凝縮器２の詳細については後述
する。The receiver-integrated refrigerant condenser 2 cools the gas refrigerant discharged from the refrigerant compressor 1 by a cooling fan (not shown).
A condenser 36 that is a condenser that condenses and liquefies by receiving the blown air of
A liquid receiver 31 for separating the gas-liquid two-phase refrigerant condensed and liquefied by the condenser 36 into a gas refrigerant and a liquid refrigerant, and the liquid refrigerant separated by the liquid receiver 31 is blown by a cooling fan (not shown). It is composed of a supercooling unit 37 which receives and supercools.
The details of the liquid receiver integrated refrigerant condenser 2 will be described later.
【００２６】次に、サイトグラス３は、受液器一体型冷
媒凝縮器２より冷媒流れの下流に接続されて、冷凍サイ
クルＡ内を循環する封入冷媒量の過不足を点検観察する
もので、エンジンルーム（図示しない）内にて点検者が
容易に視認できる場所、例えば受液器一体型冷媒凝縮器
２に隣接した出口側の冷媒配管の途中に単独で架装され
ている。このサイトグラス３は、溶着ガラスにより気密
にシールされた覗き窓３ａを有し、この覗き窓３ａから
気泡が見られるときは冷媒量不足であると判定し、気泡
が見られないときは冷媒量が適正であると判定する。Next, the sight glass 3 is connected to the downstream side of the refrigerant flow from the receiver-integrated refrigerant condenser 2 to inspect and observe whether the amount of the enclosed refrigerant circulating in the refrigeration cycle A is excessive or insufficient. It is installed alone in a place where it can be easily visually recognized by an inspector in an engine room (not shown), for example, in the middle of the outlet-side refrigerant pipe adjacent to the receiver-integrated refrigerant condenser 2. This sight glass 3 has a peep window 3a hermetically sealed by a fused glass. When bubbles are seen from the peek window 3a, it is determined that the amount of refrigerant is insufficient, and when no bubbles are seen, the amount of refrigerant is Is determined to be appropriate.
【００２７】温度作動式膨脹弁４は、冷媒蒸発器５の冷
媒入口側に接続され、高温高圧の液冷媒が断熱膨張をし
て低温低圧の気液二相の霧状冷媒になる減圧手段として
働くもので、冷媒蒸発器６の冷媒出口部の冷媒過熱度を
所定値に維持するよう弁開度を自動調整する。The temperature-operated expansion valve 4 is connected to the refrigerant inlet side of the refrigerant evaporator 5, and serves as a pressure reducing means for adiabatic expansion of the high-temperature high-pressure liquid refrigerant into a low-temperature low-pressure gas-liquid two-phase atomized refrigerant. It works and automatically adjusts the valve opening so as to maintain the degree of refrigerant superheat at the refrigerant outlet of the refrigerant evaporator 6 at a predetermined value.
【００２８】冷媒蒸発器５は、温度作動式膨脹弁４の下
流側と冷媒圧縮機１の吸入側との間に接続され、温度作
動式膨脹弁４より内部に流入した気液二相状態の冷媒を
空調用送風機（図示しない）により送風される室外空気
または室内空気と熱交換させて冷媒を蒸発させ、その蒸
発潜熱により送風空気を冷却する冷却手段として働く。
なお、この冷媒蒸発器５は、車室内に設置される空調ユ
ニット（図示しない）のケース内に設けられる。The refrigerant evaporator 5 is connected between the downstream side of the temperature-operated expansion valve 4 and the suction side of the refrigerant compressor 1, and has a gas-liquid two-phase state flowing in from the temperature-operated expansion valve 4. The refrigerant works by exchanging heat with outdoor air or indoor air blown by an air-conditioning blower (not shown) to evaporate the refrigerant and cool the blown air by the latent heat of vaporization.
The refrigerant evaporator 5 is provided in the case of an air conditioning unit (not shown) installed in the vehicle compartment.
【００２９】次に、受液器一体型冷媒凝縮器２について
図１ないし図３に基づいて詳細を説明する。この受液器
一体型冷媒凝縮器２は、例えば高さが３００〜４００ｍ
ｍ、幅が３００〜６００ｍｍの大きさで、エンジンルー
ム内の走行風を受けやすい場所、通常はエンジン冷却水
冷却用ラジエータの前方側に位置するように取付ブラケ
ットを介して車体に取り付けられており、エンジン冷却
用ラジエータと共通のクーリングファンにより冷却され
る。Next, the liquid receiver integrated refrigerant condenser 2 will be described in detail with reference to FIGS. 1 to 3. The liquid receiver integrated refrigerant condenser 2 has a height of, for example, 300 to 400 m.
m, width is 300-600 mm, and it is attached to the vehicle body via a mounting bracket so that it is located in a place where the running wind is easily received in the engine room, usually on the front side of the engine cooling water cooling radiator. Cooled by a cooling fan that is also used for the engine cooling radiator.
【００３０】そして、受液器一体型冷媒凝縮器２は、所
定間隔を開けて配置された一対のヘッダタンク、すなわ
ち、第１、第２ヘッダタンク２１、２２を有し、この第
１、第２ヘッダタンク２１、２２は上下方向に略円筒状
に延びる形状になっている。この第１、第２ヘッダタン
ク２１、２２の間に熱交換用のコア部２３を配置してい
る。The receiver-integrated refrigerant condenser 2 has a pair of header tanks, that is, first and second header tanks 21 and 22 arranged at a predetermined interval. The 2 header tanks 21 and 22 have a shape extending in a substantially cylindrical shape in the vertical direction. A core portion 23 for heat exchange is arranged between the first and second header tanks 21 and 22.
【００３１】本実施形態の受液器一体型冷媒凝縮器２
は、一般にマルチフロータイプと称されているものであ
って、コア部２３は第１、第２ヘッダタンク２１、２２
の間で、水平方向に冷媒を流す偏平チューブ２４を多数
並列配置し、この多数の偏平チューブ２４の間にコルゲ
ートフィン２５を介在して接合している。偏平チューブ
２４の一端部は第１ヘッダタンク２１内に連通し、他端
部は第２ヘッダタンク２２内に連通している。Liquid receiver integrated refrigerant condenser 2 of this embodiment
Is generally called a multi-flow type, and the core portion 23 includes the first and second header tanks 21 and 22.
In between, a large number of flat tubes 24 for flowing the refrigerant in the horizontal direction are arranged in parallel, and corrugated fins 25 are interposed between the plurality of flat tubes 24 to join them. One end of the flat tube 24 communicates with the first header tank 21, and the other end communicates with the second header tank 22.
【００３２】そして、一方の（第１）ヘッダタンク２１
の上端側に冷媒の入口側配管ジョイント２６を配置し接
合しており、また、下端側に冷媒の出口側配管ジョイン
ト２７を配置し接合している。Then, one (first) header tank 21
The refrigerant inlet side pipe joint 26 is arranged and joined to the upper end side of the above, and the refrigerant outlet side pipe joint 27 is arranged and joined to the lower end side thereof.
【００３３】さらに、ここでは、第１ヘッダタンク２１
内に第１、第２の２枚のセパレータ２８ａ、２８ｂを配
置するとともに、第２ヘッダタンク２２内に第３、第４
の２枚のセパレータ２９ａ、２９ｂを配置している。こ
れにより、第１、第２ヘッダタンク２１、２２の内部を
それぞれ上下方向に複数（３個づつ）の空間２１ａ、２
１ｂ、２１ｃ、２２ａ、２２ｂ、２２ｃに仕切ってい
る。従って、入口側配管ジョイント２６からの冷媒を第
１、第２ヘッダタンク２１、２２とコア部２３との間で
蛇行状に流通させる。Further, here, the first header tank 21
The first and second separators 28a and 28b are arranged in the second header tank 22, and the third and fourth separators 28a and 28b are arranged in the second header tank 22.
The two separators 29a and 29b are arranged. As a result, the interiors of the first and second header tanks 21 and 22 are respectively divided into a plurality of (three) spaces 21a and 2
It is divided into 1b, 21c, 22a, 22b and 22c. Therefore, the refrigerant from the inlet side pipe joint 26 is caused to circulate in a meandering manner between the first and second header tanks 21 and 22 and the core portion 23.
【００３４】ここで、第１ヘッダタンク２１内の上方側
の第１セパレータ２８ａに対して第２ヘッダタンク２２
内の上方側の第３セパレータ２９ａの高さは低くしてあ
るが、第１ヘッダタンク２１内の下方側の第２セパレー
タ２８ｂと第２ヘッダタンク２２内の下方側の第４セパ
レータ２９ｂは同一高さに配置してある。Here, the second header tank 22 with respect to the upper first separator 28a in the first header tank 21.
Although the height of the upper third separator 29a in the inside is made lower, the lower second separator 28b in the first header tank 21 and the lower fourth separator 29b in the second header tank 22 are the same. It is located at the height.
【００３５】また、第２ヘッダタンク２２には、冷媒の
気液を分離して液冷媒を蓄える受液器３１が一体に構成
してある。この受液器３１も略円筒形状であり、第２ヘ
ッダタンク２２の外面側方（コア部２３と反対側の部
位）に配置され、第２ヘッダタンク２２の外面に一体に
接合される。受液器３１は第２ヘッダタンク２２より若
干低い高さを有しており、受液器３１の上端部は第２ヘ
ッダタンク２２の上側空間２２ａの上端部近くまで延び
ている。Further, the second header tank 22 is integrally formed with a liquid receiver 31 which separates the gas and liquid of the refrigerant and stores the liquid refrigerant. The liquid receiver 31 also has a substantially cylindrical shape, is arranged on the outer surface side of the second header tank 22 (a portion opposite to the core portion 23), and is integrally joined to the outer surface of the second header tank 22. The liquid receiver 31 has a height slightly lower than that of the second header tank 22, and the upper end of the liquid receiver 31 extends close to the upper end of the upper space 22a of the second header tank 22.
【００３６】なお、ここでは、受液器一体型冷媒凝縮器
２の各部および受液器３１はクラッド処理されたアルミ
ニュウム材などで成形され、一体ろう付けにて組付けら
れている。Here, each part of the liquid receiver-integrated refrigerant condenser 2 and the liquid receiver 31 are formed of a clad-treated aluminum material or the like, and assembled by integral brazing.
【００３７】次に、受液器３１内部の空間と第２ヘッダ
タンク２２との連通構造について以下説明する。図２は
第２ヘッダタンク２２と受液器３１の横断面図であり、
第２ヘッダタンク２２は、偏平チューブ２４の端部が接
合され、支持される断面略Ｕ字状の第１プレート２２１
を有し、この第１プレート２２１に略円弧状の断面形状
を持つ第２プレート２２２を接合することにより、略円
筒状の形状を構成している。なお、第２ヘッダタンク２
２の上下両端部はキャップ部材２２３、２２４（図１）
により閉塞される。Next, the communication structure between the space inside the liquid receiver 31 and the second header tank 22 will be described below. FIG. 2 is a cross-sectional view of the second header tank 22 and the liquid receiver 31,
The second header tank 22 has an end portion of the flat tube 24 joined to and supported by the first plate 221 having a substantially U-shaped cross section.
And a second plate 222 having a substantially arcuate cross-sectional shape is joined to the first plate 221 to form a substantially cylindrical shape. The second header tank 2
The upper and lower ends of the cap 2 are cap members 223 and 224 (FIG. 1)
Is blocked by.
【００３８】一方、受液器３１の円筒本体部３１１は図
２に示すように、一枚のプレートを円筒状に曲げ加工し
て接合することにより略円筒状の形状を構成している。
そして、受液器３１の上端部はキャップ部材３１２によ
り閉塞されている。また、受液器３１の下端部は後述す
る取付台座３１３により閉塞されている。この支持台３
１３の上部には、水分吸着用の乾燥手段である乾燥部材
３１４（後述する）および異物除去用のフィルタ手段で
あるフィルタ部材３１５（後述する）が一体に設けられ
ている。フィルタ部材３１５は円筒状の網状体で構成さ
れている。On the other hand, as shown in FIG. 2, the cylindrical main body 311 of the liquid receiver 31 has a substantially cylindrical shape by bending and joining one plate into a cylindrical shape.
The upper end of the liquid receiver 31 is closed by the cap member 312. The lower end of the liquid receiver 31 is closed by a mounting pedestal 313 described later. This support 3
A drying member 314 (which will be described later) which is a drying means for adsorbing water and a filter member 315 (which will be described later) which is a filter means for removing foreign matter are integrally provided on the upper part of 13. The filter member 315 is composed of a cylindrical mesh body.
【００３９】そして、第２ヘッダタンク２２の第２プレ
ート２２２に平面部２２２ａを形成するとともに、受液
器３１の円筒本体部３１１に平面部３１１ａを形成し、
かつこの平面部３１１ａの上下２個所に段差をもって突
出した平面突出部３１１ｂを形成し、この平面突出部３
１１ｂを第２プレート２２２の平面部２２２ａと当接さ
せて一体に接合するようになっている。Then, the flat portion 222a is formed on the second plate 222 of the second header tank 22, and the flat portion 311a is formed on the cylindrical main body portion 311 of the liquid receiver 31.
In addition, plane projecting portions 311b projecting with steps are formed at two upper and lower portions of the plane projecting portion 311a.
11b is brought into contact with the flat surface portion 222a of the second plate 222 and integrally joined.
【００４０】そして、図１に示すように、下方の当接部
の第４セパレータ２９ｂの上方に第１連通穴３２を設け
て受液器３１内に連通させている。さらに、第２ヘッダ
タンク２２の第２プレート２２２の平面部２２２ａおよ
び受液器３１の円筒本体部３１１の平面部３１１ａのう
ち、第４セパレータ２９ｂよりも下方の部位に第２連通
穴３３を設けて、受液器３１内部の底部近傍を第２ヘッ
ダタンク２２の下方部空間２２ｃに連通させている。Then, as shown in FIG. 1, a first communication hole 32 is provided above the fourth separator 29b at the lower contact portion to communicate with the liquid receiver 31. Further, the second communication hole 33 is provided in a portion of the flat surface portion 222a of the second plate 222 of the second header tank 22 and the flat surface portion 311a of the cylindrical body portion 311 of the liquid receiver 31 below the fourth separator 29b. Thus, the vicinity of the bottom inside the liquid receiver 31 is communicated with the lower space 22c of the second header tank 22.
【００４１】次に、本発明の要部である受液器３１内部
に配設される乾燥手段である乾燥部材３１４について説
明する。この乾燥部材３１４は上述したように第１連通
穴３２から流入される液冷媒に含まれる水分を吸着作用
によって吸着させるものであって、図３（ａ）に示すよ
うに、取付台座３１３にフィルタ手段であるフィルタ３
１５と乾燥部材３１４とが一体に構成されている。Next, the drying member 314, which is a drying means arranged inside the liquid receiver 31 which is an essential part of the present invention, will be described. The drying member 314 is for adsorbing the water contained in the liquid refrigerant flowing in from the first communication hole 32 by the adsorbing action as described above, and as shown in FIG. Filter 3 as a means
15 and the drying member 314 are integrally configured.
【００４２】取付台座３１３は、シール材３１３ａおよ
びネジ部３１３ｂを備え、円筒本体部３１１の下端にシ
ール材３１３ａを介して気密に、かつ脱着可能にねじ止
め固定される。フィルタ３１５は、図３（ｂ）に示すよ
うに、外周に網状のフィルタ部材３１５ａを円筒状に備
えるとともに、この円筒の上面に図示しない開口部およ
び中心部に上方に延びる円柱状の支持部材３１５ｂを備
えている。乾燥部材３１４は、例えばゼオライトなどの
吸着材の粒子もしくは粉末を焼結加工によって円筒状に
成形したものである。これによると、従来、フェルトの
袋材にゼオライトなどの小径の吸着粒子を詰め込んだも
のよりも、吸着粒子間の間隙率が下がるため小容量に形
成できる。The mounting pedestal 313 is provided with a sealing material 313a and a screw portion 313b, and is fixed to the lower end of the cylindrical main body portion 311 via the sealing material 313a in an airtight and detachable manner. As shown in FIG. 3B, the filter 315 is provided with a mesh-shaped filter member 315a on the outer periphery in a cylindrical shape, and a columnar support member 315b extending upward in an opening (not shown) and a central portion on the upper surface of the cylinder. Is equipped with. The drying member 314 is formed by sintering adsorbent particles or powder such as zeolite into a cylindrical shape by sintering. According to this, since the porosity between the adsorbent particles is lower than that of the conventional packing material of the felt bag material with the small-diameter adsorbent particles such as zeolite, it can be formed in a small volume.
【００４３】そして、取付台座３１３にフィルタ３１５
が結合され、フィルタ３１５の支持部材３１５ｂに円筒
状に形成された乾燥部材３１４をはめ込んで、かつ支持
部材３１５ｂに押えピン３１５ｃを嵌合することでそれ
ぞれが結合されて一体に構成される。そして、円筒本体
部３１１の下端から受液器３１内に組み込むことで、乾
燥部材３１４がその外周面と円筒本体部３１１の内壁面
との間に空間３４（図２参照）を形成するように配設さ
れている。Then, a filter 315 is attached to the mounting base 313.
Are combined with each other, and the drying member 314 formed in a cylindrical shape is fitted into the supporting member 315b of the filter 315, and the pressing pin 315c is fitted into the supporting member 315b, so that the respective members are combined to be integrally formed. Then, the drying member 314 forms a space 34 (see FIG. 2) between the outer peripheral surface thereof and the inner wall surface of the cylindrical body portion 311 by incorporating the lower end of the cylindrical body portion 311 into the liquid receiver 31. It is arranged.
【００４４】この空間３４が凝縮された冷媒の気液分離
層であって、ガス冷媒が上方に、液が下方に分離されて
液冷媒が溜められる。ここでは、空間３４として、第１
連通穴３２から流入した冷媒が上方に対流するように径
方向に所定値以上の空間（隙間）を確保するように乾燥
部材３１４の外形寸法を設定している。なお、この受液
器３１内部に溜まる液冷媒は乾燥部材３１４の周囲を通
過した後、円筒状の網状体からなるフィルタ３１５の内
部に必ず流入し、その後、フィルタ３１５を通過して第
２連通穴３３に流入する。The space 34 is a gas-liquid separation layer of the condensed refrigerant, in which the gas refrigerant is separated upward and the liquid is separated downward to store the liquid refrigerant. Here, as the space 34, the first
The outer dimension of the drying member 314 is set so as to secure a space (gap) of a predetermined value or more in the radial direction so that the refrigerant flowing from the communication hole 32 convects upward. The liquid refrigerant accumulated inside the liquid receiver 31 always passes through the periphery of the drying member 314 and then flows into the inside of the filter 315 formed of a cylindrical mesh body, and then passes through the filter 315 and the second communication. It flows into the hole 33.
【００４５】そして、コア部２３において、第２、第４
セパレータ２８ｂ、２９ｂより上方側の部位は、冷媒圧
縮機１の吐出ガス冷媒をクーリングファン（図示せず）
等により送られてくる室外空気と熱交換させて冷媒を冷
却、凝縮させる凝縮部３６を構成している。また、コア
部２３において、第２、第４セパレータ２８ｂ、２９ｂ
より下方側の部位は、上述の受液器３１内部において気
液分離された液冷媒を室外空気と熱交換させて過冷却す
る過冷却部３７を構成している。Then, in the core portion 23, the second and fourth
A portion above the separators 28b and 29b is a cooling fan (not shown) for the discharged gas refrigerant of the refrigerant compressor 1.
A condensing unit 36 that cools and condenses the refrigerant by exchanging heat with the outdoor air sent by the above is constructed. In the core portion 23, the second and fourth separators 28b and 29b are also provided.
The portion on the lower side constitutes a supercooling section 37 that supercools the liquid refrigerant separated in the liquid receiver 31 by heat exchange with the outdoor air.
【００４６】従って、本実施形態の受液器一体型冷媒凝
縮器２は、冷媒流れの上流側から順次、凝縮部３６、受
液器３１、および過冷却部３７を構成するとともに、こ
れらを一体に設けた構成となっている。なお、受液器３
１内における冷媒の気液界面は、冷媒封入量の正常時に
は、概ね第３セパレータ２９ａと受液器３１の上端面と
の中間高さに位置するようになっている。Therefore, the receiver-integrated refrigerant condenser 2 of this embodiment comprises the condenser section 36, the receiver 31 and the supercooling section 37 sequentially from the upstream side of the refrigerant flow, and these are integrated. It has a configuration provided in. The receiver 3
The gas-liquid interface of the refrigerant in 1 is located approximately at an intermediate height between the third separator 29a and the upper end surface of the liquid receiver 31 when the refrigerant filling amount is normal.
【００４７】なお、第２ヘッダタンク２２と受液器３１
とが接合によって形成される隙間３５（図１参照）は、
第２ヘッダタンク２２の上側空間２２ａ内の冷媒の熱量
が受液器３１側に伝熱することを防止するための空間で
ある。The second header tank 22 and the liquid receiver 31
The gap 35 (see FIG. 1) formed by joining and
This is a space for preventing the amount of heat of the refrigerant in the upper space 22a of the second header tank 22 from being transferred to the liquid receiver 31 side.
【００４８】次に、上記構成において作動を説明する。
いま、自動車用空調装置の運転が開始され、電磁クラッ
チ１ａに通電されると、電磁クラッチ１ａが接続状態と
なり、自動車エンジンの回転が冷媒圧縮機１に伝達さ
れ、冷媒圧縮機１が冷媒を圧縮し吐出する。Next, the operation of the above structure will be described.
Now, when the operation of the air conditioner for automobiles is started and the electromagnetic clutch 1a is energized, the electromagnetic clutch 1a is brought into the connected state, the rotation of the automobile engine is transmitted to the refrigerant compressor 1, and the refrigerant compressor 1 compresses the refrigerant. Then discharge.
【００４９】これにより、冷媒圧縮機１から吐出された
過熱ガス冷媒は、入口側配管ジョイント２６から凝縮器
２の第１ヘッダタンク２１の上部空間２１ａより凝縮部
３６の上側チューブ２４を通過した後、第２ヘッダタン
ク２２の上部空間２２ａに流入する。そして、冷媒はこ
の上部空間２２ａでＵターンして凝縮部３６の中間部チ
ューブ２４を通過した後、第１ヘッダタンク２１の中間
部空間２１ｂに流入する。As a result, after the superheated gas refrigerant discharged from the refrigerant compressor 1 passes through the inlet side pipe joint 26 from the upper space 21a of the first header tank 21 of the condenser 2 to the upper tube 24 of the condenser 36. , Into the upper space 22a of the second header tank 22. Then, the refrigerant makes a U-turn in the upper space 22a, passes through the intermediate tube 24 of the condenser 36, and then flows into the intermediate space 21b of the first header tank 21.
【００５０】次に、冷媒はこの中間部空間２１ｂでＵタ
ーンして凝縮部３６の下側チューブ２４を通過した後、
第２ヘッダタンク２２の中間部空間２２ｂに流入する。
この間に、冷媒はチューブ２４およびフィン２５を介し
て冷却空気と熱交換して冷却され、ガス冷媒を一部含む
飽和液冷媒となる。この飽和液冷媒は、上記の中間部空
間２２ｂから第１連通穴３２を通って受液器３１内に流
入する。Next, the refrigerant makes a U-turn in this intermediate space 21b and passes through the lower tube 24 of the condenser 36,
It flows into the intermediate space 22b of the second header tank 22.
During this time, the refrigerant exchanges heat with the cooling air via the tubes 24 and the fins 25 to be cooled, and becomes a saturated liquid refrigerant containing a part of the gas refrigerant. The saturated liquid refrigerant flows from the intermediate space 22b into the liquid receiver 31 through the first communication hole 32.
【００５１】そして、受液器３１の空間３４内におい
て、冷媒の気液が分離され液冷媒が蓄えられるととも
に、冷媒に含まれる水分が乾燥部材３１４によって吸着
される。そして、フィルタ３１５を通過することにより
冷媒中に含まれる異物が除去される。また、受液器３１
内の液冷媒は第２連通穴３３を通って第２ヘッダタンク
２２の下部空間２２ｃを経由して過冷却部３７を通過す
る。この過冷却部３７において、液冷媒は再度冷却され
て過冷却状態となり、この過冷却液冷媒は第１ヘッダタ
ンク２１の下部空間２１ｃを通って出口側配管ジョイン
ト２７から凝縮器２外へ流出する。Then, in the space 34 of the liquid receiver 31, the gas-liquid of the refrigerant is separated and the liquid refrigerant is stored, and the moisture contained in the refrigerant is adsorbed by the drying member 314. Then, the foreign matter contained in the refrigerant is removed by passing through the filter 315. Also, the receiver 31
The liquid refrigerant therein passes through the second communication hole 33, the lower space 22c of the second header tank 22, and the supercooling section 37. In the supercooling section 37, the liquid refrigerant is cooled again to be in a supercooled state, and the supercooled liquid refrigerant flows out of the condenser 2 through the outlet side pipe joint 27 through the lower space 21c of the first header tank 21. .
【００５２】そして、過冷却液冷媒はサイトグラス３を
通って、温度作動式膨張弁４に流入する。この温度作動
式膨張弁４において、過冷却液冷媒は減圧され、低温、
低圧の気液２相冷媒となる。次いで、この気液２相冷媒
は冷媒蒸発器５にて空調用空気と熱交換して蒸発し、そ
の蒸発潜熱を空調用空気から吸熱して、空調用空気を冷
却する。冷媒蒸発器５にて蒸発した過熱ガス冷媒は冷媒
圧縮機１に吸入され、再度圧縮される。Then, the supercooled liquid refrigerant passes through the sight glass 3 and flows into the temperature operated expansion valve 4. In this temperature actuated expansion valve 4, the supercooled liquid refrigerant is decompressed to a low temperature,
It becomes a low pressure gas-liquid two-phase refrigerant. Next, this gas-liquid two-phase refrigerant exchanges heat with the air for air conditioning in the refrigerant evaporator 5 and evaporates, and the latent heat of evaporation is absorbed from the air for air conditioning to cool the air for air conditioning. The superheated gas refrigerant evaporated in the refrigerant evaporator 5 is drawn into the refrigerant compressor 1 and compressed again.
【００５３】次に、本発明の要部である受液器３１内に
配設された乾燥部材３１４によって形成される空間３４
と冷媒封入特性の改善について説明する。Next, the space 34 formed by the drying member 314 arranged in the liquid receiver 31 which is an essential part of the present invention.
The improvement of the refrigerant encapsulation characteristics will be described.
【００５４】本実施形態の受液器３１は、エンジンルー
ム内に設置されるため、走行条件によっては受液器３１
の周囲温度が高くなり受液器３１側が受熱されるときも
ある。この時に上記空間３４が狭い時には第１連通穴３
２から流入される冷媒が受液器３１内で対流せずに第２
連通穴３３側に流出しやすくなる。そして、このために
気液界面の飽和液冷媒がガス化されやすくなる。従っ
て、気液界面が気化冷媒に押されて下方に低下してしま
う。この結果、受液器３１内に収容される液冷媒量が低
下することになる。Since the liquid receiver 31 of this embodiment is installed in the engine room, the liquid receiver 31 may be installed depending on running conditions.
In some cases, the ambient temperature of the receiver becomes high and the receiver 31 side receives heat. At this time, when the space 34 is narrow, the first communication hole 3
The refrigerant flowing in from the second side does not convect in the receiver 31
It easily flows out to the communication hole 33 side. Then, for this reason, the saturated liquid refrigerant at the gas-liquid interface is easily gasified. Therefore, the gas-liquid interface is pushed by the vaporized refrigerant and drops downward. As a result, the amount of liquid refrigerant contained in the liquid receiver 31 is reduced.
【００５５】そこで、本発明は、乾燥部材３１４をゼオ
ライトなどの吸着材を用いて焼結加工よって所定の外形
寸法を有する略柱状、好ましくは円筒状に形成すること
により、空間３４を所定値以上（例えば５ｍｍ程度）に
確保するように構成した。これにより、受液器３１が受
熱されるときにおいても、第１連通穴３２から流入され
る冷媒が空間３４を流通し、液冷媒が蒸発されることで
流入する冷媒のサブクールが上昇するとともに、対流に
より気液界面の液冷媒のサブクールが上昇するため、受
液器３１の上方に収容されているガス冷媒が気液界面で
凝縮されて気液界面が上昇する。この結果、受液器３１
内に収容される液冷媒量が増加することになる。Therefore, according to the present invention, the drying member 314 is formed into a substantially columnar shape, preferably a cylindrical shape, having a predetermined outer dimension by a sintering process using an adsorbent such as zeolite so that the space 34 has a predetermined value or more. (For example, about 5 mm). As a result, even when the liquid receiver 31 receives heat, the refrigerant flowing in from the first communication hole 32 flows through the space 34, and the subcool of the inflowing refrigerant increases as the liquid refrigerant evaporates, and Since the subcool of the liquid refrigerant at the gas-liquid interface rises due to the convection, the gas refrigerant stored above the liquid receiver 31 is condensed at the gas-liquid interface and the gas-liquid interface rises. As a result, the receiver 31
The amount of liquid refrigerant contained therein will increase.
【００５６】以上の第１実施形態によれば、吸着材を用
い焼結加工により間隙率を下げ筒状に形成されることに
より、従来、袋状に形成されたものと比較して小型化が
図れる。従って、受液器３１内に所定の空間３４が確保
できることにより、受液器３１が受熱されるときにおい
て、冷媒封入特性が良好に維持できる。According to the first embodiment described above, since the porosity is reduced by the sintering process using the adsorbent to form the tubular shape, the size can be reduced as compared with the conventional bag-shaped one. Can be achieved. Therefore, since the predetermined space 34 can be ensured in the liquid receiver 31, when the liquid receiver 31 receives heat, the refrigerant sealing characteristic can be maintained excellent.
【００５７】また、従来フェルトの袋状にゼオライトな
どの吸着材を小径の粒子を詰め込んで袋状に形成させた
ものと比較して、小型化となるためフィルタ３１５と一
体に結合して受液器３１内に組付けるので組付性が向上
する。Further, compared with the conventional one in which a small-sized particle is packed in an adsorbent such as zeolite in the shape of a bag of a felt, the size of the bag is reduced, so that the filter 315 is integrally combined to receive the liquid. Assembling in the container 31 improves the assembling property.
【００５８】（第２実施形態）以上の第１実施形態で
は、乾燥手段である乾燥部材３１４を所定の外形寸法を
有する円筒状に形成させたが、これに限らず、第１連通
穴３２から受液器３１の上方へ通ずる案内溝が形成され
た略柱状の乾燥部材３１４ａでも良い。図４（ａ）およ
び図４（ｂ）に示すように、第１連通穴３２に通ずる下
方から上方に案内溝３１６を形成させるように第１実施
形態と同様の吸着材を用い焼結加工によって成形された
ものである。これによると乾燥部材３１４ａの外周面と
円筒本体部３１１のとの間に形成される第１実施形態と
同様の空間３４に加えて、案内溝３１６内を流入した冷
媒が流通しやすいことで冷媒封入特性が良好に維持され
る。(Second Embodiment) In the first embodiment described above, the drying member 314, which is the drying means, is formed in a cylindrical shape having a predetermined outer dimension, but the present invention is not limited to this, and the first communicating hole 32 is used. A substantially columnar drying member 314a having a guide groove communicating with the upper side of the liquid receiver 31 may be used. As shown in FIGS. 4 (a) and 4 (b), the same adsorbent as that of the first embodiment is used to perform the sintering process so that the guide groove 316 is formed from the lower side to the upper side communicating with the first communication hole 32. It is molded. According to this, in addition to the space 34 formed between the outer peripheral surface of the drying member 314a and the cylindrical main body portion 311 as in the first embodiment, the refrigerant flowing in the guide groove 316 easily flows, so that the refrigerant flows. Good encapsulation properties are maintained.
【００５９】また、案内溝３１６を有することにより、
外形寸法を若干大きくすることができ空間３４が狭めら
れても冷媒封入特性が低下することはない。By having the guide groove 316,
The external dimensions can be made slightly larger, and the refrigerant sealing characteristics will not be deteriorated even if the space 34 is narrowed.
【００６０】（第３実施形態）以上の第１、第２実施形
態では、乾燥手段である乾燥部材３１４とフィルタ手段
であるフィルタ３１５とが別体にて構成されていたが、
これに限らず、乾燥部材３１４に構成される吸着材の粒
子密度を高めることでフィルタ機能を有する略柱状の乾
燥部材３１４ｂとしても良い。図５（ａ）ないし図５
（ｃ）に示すように、いずれも、吸着材の粒子密度を高
めた乾燥部材３１４ｂを形成し、図５（ａ）は、フィル
タ手段として主に機能する大径部３１４ｂｂを第１連通
穴３２と第２連通穴３３との間に配設した例であり、図
５（ｂ）は、その大径部３１４ｂｂを第１連通穴３２の
位置（下流側）配設した例、図５（ｃ）は、その大径部
３１４ｂｂを第２連通穴３３の位置（上流側に）配設し
た例である。(Third Embodiment) In the above first and second embodiments, the drying member 314 which is the drying means and the filter 315 which is the filter means are constructed separately.
The present invention is not limited to this, and a substantially columnar drying member 314b having a filter function by increasing the particle density of the adsorbent formed in the drying member 314 may be used. 5 (a) to 5
As shown in (c), in each case, a drying member 314b in which the particle density of the adsorbent is increased is formed, and in FIG. 5 (a), the large diameter portion 314bb mainly functioning as a filter means is provided with the first communicating hole 32. 5 (c) is an example in which the large diameter portion 314bb is arranged at the position of the first communication hole 32 (downstream side), and FIG. 5 (c). ) Is an example in which the large diameter portion 314bb is arranged at the position of the second communication hole 33 (on the upstream side).
【００６１】このように、乾燥部材３１４ｂに冷媒を流
通させることでフィルタ機能が可能となるため、別体の
フィルタ３１５を不要とできるため、部品コストの低減
ができるとともに組付性が向上する。As described above, since the filter function can be realized by circulating the refrigerant through the drying member 314b, the separate filter 315 can be eliminated, so that the parts cost can be reduced and the assembling property can be improved.
【００６２】（他の実施形態）第１実施形態では、乾燥
部材３１４をフィルタ３１５に結合するために、円柱状
の支持部材３１５ｂに押えピン３１５ｃを嵌合させて一
体に構成したが、図６に示すように、支持部材３１５ｂ
を樹脂材で形成し、乾燥部材３１４をはめ込んだ後に、
支持部材３１５ｂを熱加工などで変形させて一体に構成
しても良い。これにより、押えピン３１５ｃが不要とな
ることで部品コストが低減できる。(Other Embodiments) In the first embodiment, in order to connect the drying member 314 to the filter 315, the pressing pin 315c is fitted to the cylindrical supporting member 315b to form an integral structure. As shown in FIG.
Is formed of a resin material, and after fitting the drying member 314,
The support member 315b may be deformed by heat processing or the like to be integrally configured. As a result, the presser pin 315c is not required, and the cost of parts can be reduced.
【００６３】また、図７に示すように、支持部材３１５
ｂの先端に爪部３１５ｄを設け、乾燥部材３１４をはめ
込んだ後に一体に構成できるようにしても良い。Further, as shown in FIG. 7, the supporting member 315 is used.
It is also possible to provide a claw portion 315d at the tip of b so that the drying member 314 is fitted and then integrated.
【００６４】また、図８に示すように、乾燥部材３１４
ｃを円柱状とし、この乾燥部材３１４その下端部をフィ
ルタ３１５側に取り付けるため、フィルタの上面に円筒
状の支持部材３１５ｂを一体に設けるとともに、この支
持部材３１５ｂの内面に押え部材３１５ｅを設けること
でも良い。これにより、乾燥部材３１４の吸着材の容量
を増加することができる。以上の実施形態よりも冷媒に
含まれる水分の吸着特性が向上する。Further, as shown in FIG. 8, the drying member 314
In order to attach the lower end portion of the drying member 314 to the filter 315 side, a cylindrical supporting member 315b is integrally provided on the upper surface of the filter, and a pressing member 315e is provided on the inner surface of the supporting member 315b. But good. Thereby, the capacity of the adsorbent of the drying member 314 can be increased. The adsorption property of water contained in the refrigerant is improved as compared with the above embodiment.
【００６５】また、以上の実施形態では、過冷却部３７
を有した受液器一体型冷媒凝縮器２について説明した
が、過冷却部３７をもたない冷凍サイクルおよび受液器
３１が別体で搭載される冷凍サイクルにおいても本発明
は適用できる。Further, in the above embodiment, the supercooling section 37.
Although the liquid receiver integrated refrigerant condenser 2 having the above has been described, the present invention can be applied to a refrigeration cycle having no subcooling section 37 and a refrigeration cycle in which the liquid receiver 31 is mounted separately.
【図１】本発明の第１実施形態における受液器一体型冷
媒凝縮器２の全体構成および冷凍サイクルを示す縦断面
図および冷凍サイクル図である。FIG. 1 is a vertical cross-sectional view and a refrigeration cycle diagram showing an overall configuration and a refrigeration cycle of a liquid receiver integrated refrigerant condenser 2 according to a first embodiment of the present invention.
【図２】本発明の第１実施形態における第２ヘッダタン
ク２２と受液器３１との接合形態を示す横断面図であ
る。FIG. 2 is a transverse cross-sectional view showing a joint form between a second header tank 22 and a liquid receiver 31 according to the first embodiment of the present invention.
【図３】本発明の第１実施形態における乾燥部材３１４
およびフィルタ３１５の全体構成を示す（ａ）は斜視
図、（ｂ）は分解斜視図である。FIG. 3 is a drying member 314 according to the first embodiment of the present invention.
Further, (a) is a perspective view and (b) is an exploded perspective view showing the overall configuration of the filter 315.
【図４】本発明の第２実施形態における（ａ）は乾燥部
材３１４の構成を示す斜視図、（ｂ）は乾燥部材３１４
の断面を示す断面図である。FIG. 4A is a perspective view showing a configuration of a drying member 314 according to the second embodiment of the present invention, and FIG. 4B is a drying member 314.
It is sectional drawing which shows the cross section of.
【図５】（ａ）ないし（ｃ）ともに本発明の第３実施形
態における乾燥部材３１４の構成を示す模式図である。5 (a) to 5 (c) are schematic views showing a configuration of a drying member 314 according to a third embodiment of the present invention.
【図６】他の実施形態における乾燥部材３１４の構成を
示す正面図である。FIG. 6 is a front view showing a configuration of a drying member 314 according to another embodiment.
【図７】他の実施形態における乾燥部材３１４の構成を
示す正面図である。FIG. 7 is a front view showing a configuration of a drying member 314 according to another embodiment.
【図８】他の実施形態における（ａ）は乾燥部材３１４
の構成を示す正面図、（ｂ）は乾燥部材３１４とフィル
タ３１５との構成を示す部分断面図である。FIG. 8A is a drying member 314 according to another embodiment.
3B is a front view showing the configuration of FIG. 3B, and FIG. 3B is a partial sectional view showing the configuration of the drying member 314 and the filter 315.
【図９】従来技術における（ａ）は受液器一体型冷媒凝
縮器の構成を示す模式図、（ｂ）は乾燥部材の製法を説
明する説明図、（ｃ）フィルタの構成を示す部分断面図
である。9A is a schematic view showing a configuration of a liquid receiver integrated refrigerant condenser, FIG. 9B is an explanatory diagram illustrating a method of manufacturing a drying member, and FIG. 9C is a partial cross-sectional view showing a configuration of a filter. It is a figure.
１…冷媒圧縮機 ３１…受液器 ３４…空間 ３６…凝縮部（凝縮器） ３１４、３１４ｂ、３１４ｃ…乾燥部材（乾燥手段） ３１５…フィルタ（フィルタ手段） ３１６…案内溝 1 ... Refrigerant compressor 31 ... Liquid receiver 34 ... space 36 ... Condensing part (condenser) 314, 314b, 314c ... Drying member (drying means) 315 ... Filter (filter means) 316 ... Guide groove
Claims (6)
媒ガスを冷却して凝縮する凝縮器（３６）に接続され、
凝縮後の冷媒を下方から流入して気液を分離し液冷媒を
溜め下方から流出する受液器（３１）であって、 前記受液器（３１）内に配設され、前記液冷媒中の水分
を吸着する乾燥手段（３１４）を備え、 前記乾燥手段（３１４）は、水分を吸着する吸着材を用
い焼結加工により略柱状に形成され、かつ前記受液器
（３１）の内壁面に所定の空間（３４）を有するように
配設されることを特徴とする受液器。1. A condenser (36) for cooling and condensing superheated refrigerant gas discharged from a refrigerant compressor (1),
A liquid receiver (31) which flows in a condensed refrigerant from below to separate gas-liquid, collects the liquid refrigerant, and flows out from below, the receiver being disposed in the liquid receiver (31). A drying means (314) for adsorbing the moisture of the liquid, the drying means (314) is formed into a substantially columnar shape by sintering using an adsorbent that adsorbs the moisture, and the inner wall surface of the liquid receiver (31). A liquid receiver which is arranged so as to have a predetermined space (34) therein.
媒ガスを冷却して凝縮する凝縮器（３６）に接続され、
凝縮後の冷媒を下方から流入して気液を分離し液冷媒を
溜め下方から流出する受液器（３１）であって、 前記受液器（３１）内に配設され、前記液冷媒中の水分
を吸着する乾燥手段（３１４）と、 前記乾燥手段（３１４）の冷媒流れの下流側に配設さ
れ、冷媒中の異物を除去するフィルタ手段（３１５）と
を備え、 前記乾燥手段（３１４）は、水分を吸着する吸着材を用
い焼結加工により略柱状に形成され、かつ前記受液器
（３１）の内壁面に所定の空間（３４）を有するように
配設されることを特徴とする受液器。2. A condenser (36) for cooling and condensing the superheated refrigerant gas discharged from the refrigerant compressor (1),
A liquid receiver (31) which flows in a condensed refrigerant from below to separate gas-liquid, collects the liquid refrigerant, and flows out from below, the receiver being disposed in the liquid receiver (31). The drying means (314) for adsorbing the moisture of the refrigerant, and the filter means (315) arranged downstream of the refrigerant flow of the drying means (314) for removing foreign matter in the refrigerant. ) Is formed into a substantially columnar shape by sintering using an adsorbent that adsorbs moisture, and is disposed so as to have a predetermined space (34) on the inner wall surface of the liquid receiver (31). And a receiver.
６）と一体的に形成されている受液器一体型の冷媒凝縮
器であることを特徴とする請求項１または請求項２に記
載の受液器。3. The liquid receiver (31) is the condenser (3).
The liquid receiver according to claim 1 or 2, which is a liquid receiver integrated type refrigerant condenser integrally formed with 6).
タ手段（３１５）の上方に一体に結合されたのち、前記
受液器（３１）内に組付けられるように構成されている
ことを特徴とする請求項１ないし請求項３のいずれか一
項に記載の受液器。4. The drying means (314) is constructed so as to be integrally assembled above the filter means (315) and then assembled in the liquid receiver (31). The liquid receiver according to any one of claims 1 to 3.
の冷媒が前記受液器（３１）内の上方に向けて流通する
ように案内溝（３１６）が設けられていることを特徴と
する請求項１ないし請求項４のいずれか一項に記載の受
液器。5. The guide means (316) is provided in the drying means (314) so that the condensed refrigerant flows upward in the liquid receiver (31). The liquid receiver according to any one of claims 1 to 4.
の粒子密度を高めることで冷媒中の異物を除去するフィ
ルタ機能を有することを特徴とする請求項１ないし請求
項５のいずれか一項に記載の受液器。6. The drying means (314) has a filter function for removing foreign matter in a refrigerant by increasing a particle density of the adsorbent, according to any one of claims 1 to 5. The liquid receiver according to item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001234017A JP2003042601A (en) | 2001-08-01 | 2001-08-01 | Liquid receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001234017A JP2003042601A (en) | 2001-08-01 | 2001-08-01 | Liquid receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003042601A true JP2003042601A (en) | 2003-02-13 |
Family
ID=19065707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001234017A Withdrawn JP2003042601A (en) | 2001-08-01 | 2001-08-01 | Liquid receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003042601A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100505275B1 (en) * | 2003-08-27 | 2005-08-03 | 모딘코리아 유한회사 | Liquid receiver with condenser |
| WO2006016761A1 (en) * | 2004-08-10 | 2006-02-16 | Halla Climate Control Corporation | Cap for hermetically sealing receiver driers |
| US7776118B2 (en) | 2004-08-10 | 2010-08-17 | Halla Climate Control Corporation | Cap for hermetically sealing receiver driers |
| JP2013536932A (en) * | 2010-09-01 | 2013-09-26 | ドゥウォン クライメイト コントロール カンパニー リミテッド | Receiver dryer for automobile air conditioner |
| JP2015114000A (en) * | 2013-12-09 | 2015-06-22 | 株式会社デンソー | Liquid receiver desiccant storage bag |
| CN106091487A (en) * | 2016-07-22 | 2016-11-09 | 王言明 | A kind of cleanable heat pump heat exchanger |
| JP2019117038A (en) * | 2017-12-27 | 2019-07-18 | ユニオン昭和株式会社 | Subcooling condenser |
-
2001
- 2001-08-01 JP JP2001234017A patent/JP2003042601A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100505275B1 (en) * | 2003-08-27 | 2005-08-03 | 모딘코리아 유한회사 | Liquid receiver with condenser |
| WO2006016761A1 (en) * | 2004-08-10 | 2006-02-16 | Halla Climate Control Corporation | Cap for hermetically sealing receiver driers |
| US7776118B2 (en) | 2004-08-10 | 2010-08-17 | Halla Climate Control Corporation | Cap for hermetically sealing receiver driers |
| JP2013536932A (en) * | 2010-09-01 | 2013-09-26 | ドゥウォン クライメイト コントロール カンパニー リミテッド | Receiver dryer for automobile air conditioner |
| US9377228B2 (en) | 2010-09-01 | 2016-06-28 | Doowon Climate Control Co., Ltd | Receiver drier for vehicle air conditioner with improved filter |
| JP2015114000A (en) * | 2013-12-09 | 2015-06-22 | 株式会社デンソー | Liquid receiver desiccant storage bag |
| CN106091487A (en) * | 2016-07-22 | 2016-11-09 | 王言明 | A kind of cleanable heat pump heat exchanger |
| JP2019117038A (en) * | 2017-12-27 | 2019-07-18 | ユニオン昭和株式会社 | Subcooling condenser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3116996B2 (en) | Recipient integrated refrigerant condenser | |
| US6516628B2 (en) | Refrigerant cycle system with hot-gas bypass structure | |
| JP3561957B2 (en) | Recipient integrated refrigerant condenser | |
| US7089760B2 (en) | Air-conditioner | |
| JP3925158B2 (en) | Refrigerant condenser | |
| US8099978B2 (en) | Evaporator unit | |
| CN103162473B (en) | Condenser for vehicle | |
| JP4608834B2 (en) | Refrigeration cycle equipment | |
| US8789389B2 (en) | Intermediate heat exchanger | |
| JPH11304293A (en) | Refrigerant condenser | |
| US6477858B2 (en) | Refrigeration cycle apparatus | |
| US6341647B1 (en) | Separator-integrated condenser for vehicle air conditioner | |
| JPH07180930A (en) | Liquid receiver integrated type refrigerant condenser | |
| JP4032548B2 (en) | Receiver integrated refrigerant condenser | |
| JP2004353936A (en) | Heat exchanger and liquid receiver-integrated condenser | |
| JP2003042601A (en) | Liquid receiver | |
| RU2329439C2 (en) | Heat exchanger with receiver tank (versions), connecting element of receiver tank (versions), receiver tank construction design (versions), and refrigerating system (versions) | |
| JP2005009851A (en) | Air conditioning device | |
| JP2001174103A (en) | Refrigerant condenser | |
| JP2010156538A (en) | Combined device comprising internal heat exchanger and accumulator of air-conditioning loop | |
| JP4221823B2 (en) | Receiver integrated refrigerant condenser | |
| KR101280622B1 (en) | Condenser | |
| JP3955766B2 (en) | Heat exchanger with receiver tank, receiver tank coupling member, receiver tank assembly structure of heat exchanger, and refrigeration system | |
| KR20170047050A (en) | A condenser | |
| JP4238434B2 (en) | Refrigeration cycle equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070918 |
|
| RD01 | Notification of change of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7421 Effective date: 20080509 |
|
| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20081212 |