JPH109716A - Refrigerant flow deciding or merging device in air condition and the like - Google Patents
Refrigerant flow deciding or merging device in air condition and the likeInfo
- Publication number
- JPH109716A JPH109716A JP8164904A JP16490496A JPH109716A JP H109716 A JPH109716 A JP H109716A JP 8164904 A JP8164904 A JP 8164904A JP 16490496 A JP16490496 A JP 16490496A JP H109716 A JPH109716 A JP H109716A
- Authority
- JP
- Japan
- Prior art keywords
- branch pipe
- connecting member
- branch
- refrigerant
- pipe connecting
- 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.)
- Granted
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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
- F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
-
- 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
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、冷暖房を行う空調
装置や冷凍機を始めとする種々のヒートポンプ等の空調
機器等における冷媒流路の分岐部に介在させる分合流
器、特にフロン系冷媒に代わる冷媒を使用する空調機器
等用として好適なに分合流器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diverter / divider interposed in a branch of a refrigerant flow path in an air conditioner for performing cooling and heating, an air conditioner such as a refrigerator, and various other heat pumps. The present invention relates to a diverter / splitter suitable for use in an air conditioner or the like using a substitute refrigerant.
【０００２】[0002]
【従来の技術】近年、空調装置として、冷暖房を行う屋
内熱交換器（冷房では蒸発器、暖房では凝縮器）の熱交
換特性を良くしたり、複数の部屋に対する冷暖房に共用
するために、屋内熱交換器を複数の独立した熱交換部に
て構成し、各蒸発部に均等に冷媒を供給するようにした
ものが汎用されている。2. Description of the Related Art In recent years, as an air conditioner, indoor heat exchangers for cooling and heating (evaporators for cooling and condensers for heating) have been improved in order to improve the heat exchange characteristics or to be used for cooling and heating in a plurality of rooms. A heat exchanger that includes a plurality of independent heat exchange units and supplies a refrigerant to each evaporating unit evenly is widely used.
【０００３】これを図１１を参照して説明すると、例え
ば冷房の場合、圧縮機３１にて冷媒を圧縮して高温高圧
ガスとし、これを流路切換弁３２を介して屋外熱交換器
３３に供給し、この屋外熱交換器（凝縮器）３３におけ
る外気や水との強制的熱交換による冷却にて冷媒を凝縮
させて液化し、一部ガスを含む液体状態の冷媒を本管３
４より分岐部３５ａで複数の枝管３６に分流させ、各枝
管３６より冷媒を屋内熱交換器（蒸発器）３７を構成す
る複数の熱交換部３７ａ〜３７ｃに供給し、これら熱交
換部３７ａ〜３７ｃで冷媒を蒸発させて周囲から気化熱
を奪って屋内の空気を冷却し、熱交換部３７ａ〜３７ｃ
から出た冷媒ガスを分岐部３５ｂ，３５ｃにて合流させ
て流路切換弁３２を介して圧縮機３１に還流させるよう
に構成されている。なお、流路切換弁３２を切り換えれ
ば、冷媒は上記とは逆方向に流れ、屋外熱交換器３３が
蒸発器、屋内熱交換器３７が凝縮器として作用し、暖房
機能を発揮することになる。[0003] Referring to FIG. 11, for example, in the case of cooling, the refrigerant is compressed into a high-temperature and high-pressure gas by a compressor 31, and this is sent to an outdoor heat exchanger 33 via a flow path switching valve 32. The refrigerant is condensed and liquefied by cooling by forced heat exchange with the outside air and water in the outdoor heat exchanger (condenser) 33, and the refrigerant in a liquid state partially containing gas is supplied to the main pipe 3
4, the refrigerant is diverted to a plurality of branch pipes 36 at a branch portion 35a, and a refrigerant is supplied from each branch pipe 36 to a plurality of heat exchange sections 37a to 37c constituting an indoor heat exchanger (evaporator) 37. The refrigerant is evaporated at 37a-37c to take away the heat of vaporization from the surroundings to cool the indoor air, and heat exchange sections 37a-37c
The refrigerant gas discharged from the outlet is combined at the branch portions 35b and 35c and returned to the compressor 31 via the flow path switching valve 32. If the flow path switching valve 32 is switched, the refrigerant flows in the opposite direction to the above, the outdoor heat exchanger 33 acts as an evaporator, and the indoor heat exchanger 37 acts as a condenser, thereby exhibiting a heating function. Become.
【０００４】ところで、前記空調装置を始めとして、ア
ンモニア以外の冷媒を用いる空調機器等（ヒートポン
プ）における冷媒流路の配管系には、曲げ、拡開、絞り
等の加工性、冷媒及び水分に対する化学的安定性、耐蝕
性等の面より銅管が使用されている。そして、前記空調
装置の分岐部３５ａ〜３５ｃのような冷媒流路の分岐部
には、従来では図１２〜図１５に示すような構造が採用
されている。[0004] By the way, the piping system of the refrigerant flow path in the air conditioner and other air conditioners (heat pumps) using a refrigerant other than ammonia has workability such as bending, expansion, and restriction, and chemicals for the refrigerant and moisture. Copper tubes are used in terms of stability and corrosion resistance. Conventionally, a structure as shown in FIGS. 12 to 15 is employed in a branch portion of the refrigerant flow path such as the branch portions 35a to 35c of the air conditioner.
【０００５】図１２の構造は分岐側が２路の場合であ
り、同図（イ）のように本管３４の端部を拡開加工して
幅方向に膨らんだ嵌合部３４ａを形成し、この嵌合部３
４ａに２本の枝管３６，３６を挿嵌し、同図（ロ）の如
く該嵌合部３４ａを挿嵌した両枝管３６，３６の間が押
し潰れて塞がるように絞り加工すると共に、ロウ付けし
て該本管３４と枝管３６，３６を一体に連結するもので
ある。The structure shown in FIG. 12 shows a case where the branch side has two paths. As shown in FIG. 12A, the end of the main pipe 34 is expanded to form a fitting portion 34a which expands in the width direction. This fitting part 3
Two branch pipes 36, 36 are inserted into 4a, and as shown in FIG. 2 (b), a drawing process is performed so that the space between the two branch pipes 36, 36 into which the fitting portion 34a is inserted is crushed and closed. The main pipe 34 and the branch pipes 36, 36 are integrally connected by brazing.
【０００６】一方、図１３及び図１４で示すものは合分
流器としての独立部品であり、図１３の合分流器４０
は、真鍮製の本体４１に、その一端側から本管接続孔４
２、他端側から複数の枝管接続孔４３・・、中間部に本
管接続孔４２と各枝管接続孔４３とを連通させる半径方
向の連通孔４４をそれぞれ穿孔し、各連通穴４４…の外
端開口を栓４５にて密閉した構造である。また図１４の
合分流器５０は、真鍮製の本体５１が本管接続孔５２ａ
を穿孔した本管接続部材５２と複数の枝管接続孔５３ａ
・・を穿孔した細管接続部材５３とに区割構成され、両
接続部材５２，５３を互いに嵌合させてロー付け５４に
て一体化したものであり、両接続部材５２，５３の一方
の接合端面に連通部５４を凹入形成したものである。On the other hand, what is shown in FIGS. 13 and 14 is an independent part as a multiplex / splitter,
Is connected to the main pipe connection hole 4 from one end side of the main body 41 made of brass.
2. A plurality of branch pipe connection holes 43 are formed from the other end side, and radial communication holes 44 for connecting the main pipe connection holes 42 and the respective branch pipe connection holes 43 are formed in the middle part, and each communication hole 44 is formed. Are sealed with a stopper 45 at the outer end opening. In addition, the merging / splitting device 50 of FIG. 14 has a main body 51 made of brass having a main pipe connection hole 52a.
Main pipe connecting member 52 and a plurality of branch pipe connecting holes 53a
.. are divided into a capillary connection member 53 having a perforated hole, and the two connection members 52, 53 are fitted together and integrated by brazing 54, and one of the two connection members 52, 53 is joined. The communicating portion 54 is formed in the end face by recessing.
【０００７】更に、図１５で示すものは、本出願人の先
の提案（特開平８−６８５７４号公報）に係る独立部品
としての合分流器６０であり、本管接合孔６１ａ及び複
数の枝管接合孔６１ｂ・・を有する銅製の略瓶形をなす
外套部材６１内に、複数の枝管接合孔６２ａ・・を有す
る枝管接続部材６２と、本管接続孔６３ａを貫通形成し
た本管接続部材６３とを配置すると共に、両接続部材６
２，６３の間に本管接続孔６３ａと各枝管接合孔６２ａ
・・とを連通させる連通室６４を形成している。Further, what is shown in FIG. 15 is a merger / splitter 60 as an independent component according to the earlier proposal of the present applicant (Japanese Patent Application Laid-Open No. 8-68574), which comprises a main pipe joint hole 61a and a plurality of branches. A branch pipe connecting member 62 having a plurality of branch pipe connecting holes 62a, and a main pipe formed through a main pipe connecting hole 63a in a copper outer casing member 61 having a pipe connecting hole 61b. The connecting member 63 and the connecting members 6
2 and 63, the main pipe connection hole 63a and each branch pipe connection hole 62a
A communication chamber 64 is formed to communicate with.
【０００８】[0008]
【発明が解決しようとする課題】図１２に示す分岐部の
構造は、本管３４と枝管３６，３６の端部同士を直接に
連結した非常に簡単な構成であるが、連結部の耐圧強度
に劣るという致命的な難点があり、特に現在ではオゾン
層破壊の原因物質として問題化しているフロン系冷媒か
ら新冷媒への代替が急務となっているが、概して新冷媒
では熱効率上からガス圧をフロン系冷媒よりも遙かに高
く設定するため、連結部で破裂する危険性があって強度
的に対応できない。The structure of the branch portion shown in FIG. 12 has a very simple structure in which the ends of the main pipe 34 and the branch pipes 36 are directly connected to each other. There is a fatal disadvantage that the strength is inferior.In particular, it is urgent to replace the chlorofluorocarbon-based refrigerant, which has become a problem causing ozone depletion, with a new refrigerant. Since the pressure is set to be much higher than that of the chlorofluorocarbon-based refrigerant, there is a risk of rupture at the connecting portion, and the strength cannot be coped with.
【０００９】一方、図１３及び図１４に示す合分流器４
０，５０では、本体４１，５１と、その本管接続孔４
２，５２ａに挿嵌した本管３４ならびに各枝管接続孔４
３，５３ａに挿嵌した各枝管３６とをロウ付けすること
になるが、本管３４及び枝管３６が共に銅製であるのに
対して本体４１，５１は真鍮製であるため、このロウ付
けが技術的に困難であって熟練を要する上に高コストに
付き、しかも異種材質であることからロウ付け部の固着
強度を充分に高められず、前記新冷媒を用いる空調機器
等には耐圧強度面より適用しにくいという問題があっ
た。更に図１３の合分流器４０では、半径方向の連通孔
４４を穿孔し、その外端開口を栓４５にて密閉すること
から、加工工数が多くなってコスト高になり、特に分岐
数が多い場合は加工コストが非常に高く付くという難点
もあった。また図１４の合分流器５０においても、本管
接続部材５２と細管接続部材５３とを互いに嵌合し得る
形状とし、両接続部材５２，５３をロウ付けするため、
やはり加工コストが高く付くという難点があった。On the other hand, the diverter 4 shown in FIGS.
At 0 and 50, the main bodies 41 and 51 and the main pipe connection holes 4 are provided.
Main pipe 34 and branch pipe connection holes 4
The main pipe 34 and the branch pipe 36 are both made of copper, whereas the main bodies 41 and 51 are made of brass. It is technically difficult to attach, requires skill, is costly, and because it is made of a different material, the bonding strength of the brazing portion cannot be sufficiently increased. There is a problem that it is harder to apply than the strength. Further, in the merger / splitter 40 of FIG. 13, since the communication hole 44 in the radial direction is pierced and the outer end opening is sealed with the stopper 45, the number of processing steps is increased, the cost is increased, and the number of branches is particularly large. In that case, there was also a disadvantage that the processing cost was very high. Also in the merger / splitter 50 of FIG. 14, the main pipe connecting member 52 and the thin tube connecting member 53 have a shape that can be fitted to each other, and both connecting members 52 and 53 are brazed.
Again, there was the disadvantage that the processing cost was high.
【００１０】一方、図１５の合分流器では、本管３４及
び枝管３６を同材質である銅製の外套部材６１にロウ付
けすればよいから、このロウ付け操作を容易に行える
上、ロウ付け部の高い固着強度が得られ、前記新冷媒を
用いる空調機器等にも充分に対応できるという利点があ
る。しかしながら、この合分流器においては、枝管接続
部材６２及び本管接続部材６３として真鍮ダイキャスト
製品等の安価なものを利用できるが、銅製の外套部材６
１は銅管の絞り加工等で有底筒形に形成した上に複数の
枝管接合孔６１ｂ・・を枝管接続部材６２の各枝管接続
孔６２ａに精密に対応させて穿孔する必要があるため、
その製作コストが高く付き、更にこの外套部材６１の内
部に両接続部材６２，６３を、各枝管接合孔６１ｂと枝
管接続部材６２の各枝管接続孔６２ａとが精密に一致す
るように位置決めして装填した上、該外套部材６１の開
口側の端部を絞り込み加工して本管接合孔６１ａを形成
する必要があることから、組立及び加工に手間がかかり
コスト高になるという難点があった。On the other hand, in the merger / splitter shown in FIG. 15, the main pipe 34 and the branch pipe 36 may be brazed to the copper jacket member 61 made of the same material. There is an advantage that a high fixing strength of the portion can be obtained, and it can sufficiently cope with an air conditioner or the like using the new refrigerant. However, in this branching device, inexpensive ones such as a brass die-cast product can be used as the branch pipe connecting member 62 and the main pipe connecting member 63, but the copper jacket member 6 can be used.
1 needs to be formed into a cylindrical shape with a bottom by drawing or the like of a copper pipe, and a plurality of branch pipe connecting holes 61b... Are formed corresponding to the respective branch pipe connecting holes 62a of the branch pipe connecting member 62 precisely. Because
The manufacturing cost is high, and furthermore, both connecting members 62 and 63 are provided inside the outer cover member 61 so that each branch pipe connecting hole 61b and each branch pipe connecting hole 62a of the branch pipe connecting member 62 precisely match. After the positioning and loading, it is necessary to narrow down the end on the opening side of the mantle member 61 to form the main pipe joint hole 61a, so that assembly and processing are troublesome and cost is increased. there were.
【００１１】本発明は、上述の状況に鑑み、ヒートポン
プ等の空調機器等における冷媒流路の分岐部に介在させ
る分合流器として、高品質で耐圧強度に優れ、フロン系
冷媒に代わる新冷媒の使用に充分に対応でき、しかも組
立製作が容易で、従来の分合流器に比較して部材コスト
及び加工コストを大きく低減できるものを提供すること
を目的としている。In view of the above-mentioned circumstances, the present invention provides a high-quality, high-pressure strength, and new refrigerant that replaces the CFC-based refrigerant as a branch / separator that is interposed in a branch of a refrigerant flow path in an air conditioner such as a heat pump. It is an object of the present invention to provide a device which can be sufficiently used, is easy to assemble and manufacture, and can greatly reduce the member cost and the processing cost as compared with a conventional shunt / sink.
【００１２】[0012]
【課題を解決するための手段】上記目的を達成するため
に、本発明の請求項１に係る空調機器等における冷媒の
分合流器は、図面の参照符号を付して示せば、拡開した
一端側が開放すると共に他端側が本管３４に接続する銅
製の外套部材１（１Ａ，１Ｂ）内に、周面に軸方向に平
行な複数本の円弧形断面の接続用溝２１を有する銅製押
出型材よりなる枝管接続部材２（２Ａ〜２Ｃ）が前記の
拡開した一端側から嵌装され、この枝管接続部材２の各
接続用溝２１と外套部材１との間で構成される接続孔部
３に、それぞれ銅製の枝管３６の端部が挿嵌され、これ
ら枝管３６の挿嵌端部３６ａが外套部材１の外側からの
絞り込みによって前記接続孔部３の内面に密着すると共
に、枝管接続部材２の外端側で当該枝管接続部材２と前
記外套部材１と各枝管３６とがロウ付け４されてなる構
成を採用したものである。In order to achieve the above-mentioned object, a refrigerant diverter / split in an air conditioner or the like according to claim 1 of the present invention has been expanded as indicated by reference numerals in the drawings. In a copper jacket member 1 (1A, 1B) whose one end side is open and the other end side is connected to a main pipe 34, a plurality of connection grooves 21 having a plurality of arc-shaped cross sections parallel to the axial direction are formed on a peripheral surface thereof. A branch pipe connecting member 2 (2A to 2C) made of an extruded member is fitted from one end of the expanded end, and is formed between each connection groove 21 of the branch pipe connecting member 2 and the outer jacket member 1. The ends of the copper branch pipes 36 are respectively inserted into the connection holes 3, and the insertion ends 36 a of the branch pipes 36 are brought into close contact with the inner surface of the connection holes 3 by narrowing down from the outside of the outer jacket member 1. At the same time, on the outer end side of the branch pipe connecting member 2, the branch pipe connecting member 2, In which the tube 36 is adopted brazing 4 is formed by configuration.
【００１３】この請求項１の構成によれば、多数個の枝
管接続部材２を長尺の押出型材の切断によって一挙に製
作できるから、該枝管接続部材２は銅製であるにも関わ
らず製作コストが安い上に寸法的にばらつきのないもの
となり、また外套部材１は枝管接続側である一端側が開
口した形でよいから、前記の図１３に示す先行技術のよ
うに有底筒状として枝管接合孔を穿設する必要がなく、
銅管短材の拡開又は絞り加工あるいは本管３４の端部の
拡開加工によって該外套部材１を非常に簡単に且つ安価
に形成できる。しかも冷媒流路の分岐部の組立において
は、外套部材１の一端側から枝管接続部材２を嵌装する
だけで、前記先行技術のような外套部材の枝管接合孔と
枝管接続部材の各枝管接続孔とを一致させる位置決め操
作が不要であり、しかも枝管３６・・を各接続孔部３に
挿嵌して外側から絞り込み加工を行うことにより、延性
のよい銅製である枝管接続部材２の各接続用溝２１が円
弧半径を小さくするように変形して各枝管３６に圧着
し、各枝管３６の挿嵌端部３６ａが接続孔部３で強固に
抱持される上、外套部材１及び枝管接続部材２が枝管３
６と同じ銅製であり、これらを枝管接続部材２の外端側
で容易にロウ付け４できると共にロウ付け４部分の固着
強度が大きくなり、非常に優れた耐圧強度が得られる。According to the structure of the first aspect, since a large number of branch pipe connecting members 2 can be manufactured at once by cutting a long extruded die, the branch pipe connecting members 2 are made of copper even though they are made of copper. Since the manufacturing cost is low and there is no dimensional variation, and since the mantle member 1 may be open at one end, which is the branch pipe connection side, the bottomed cylindrical shape as in the prior art shown in FIG. No need to drill branch pipe joint holes as
The outer jacket member 1 can be formed very simply and inexpensively by expanding or drawing the copper pipe short material or expanding the end of the main pipe 34. Moreover, in assembling the branch portion of the refrigerant flow path, only by fitting the branch pipe connecting member 2 from one end side of the jacket member 1, the branch pipe joining hole of the jacket member and the branch pipe connecting member of the prior art are not provided. A positioning operation for matching the branch pipe connection holes is unnecessary, and the branch pipe 36 is made of copper with good ductility by inserting the branch pipes 36... Each connecting groove 21 of the connecting member 2 is deformed so as to reduce the radius of the arc and is pressed against each branch pipe 36, and the insertion end portion 36 a of each branch pipe 36 is firmly held in the connection hole 3. The upper and lower jacket members 1 and the branch pipe connecting members 2
6, which can be easily brazed 4 on the outer end side of the branch pipe connecting member 2, and the fixing strength of the brazed portion 4 is increased, so that a very excellent pressure resistance can be obtained.
【００１４】請求項２の発明では、前記請求項１の分合
流器において、外套部材１は、一端側が拡開して開放す
ると共に、他端側が本管３４に嵌合させる接続用円筒部
１２をなす独立部品よりなる構成（１Ａ）を採用してい
るから、その量産化が容易であると共に、冷媒流路の管
路構成に応じて適所に分岐部を設けることができ、該管
路の設計仕様上の制約が少なくなる。According to a second aspect of the present invention, in the branching device according to the first aspect, the outer cylindrical member 1 has one end side expanded and opened and the other end side fitted to the main pipe 34. Since the configuration (1A) composed of independent components is adopted, mass production thereof is easy, and a branch portion can be provided at an appropriate position in accordance with the configuration of the refrigerant flow path. Restrictions on design specifications are reduced.
【００１５】請求項３の発明では、前記請求項１の分合
流器において、外套部材１は、前記本管３４の一端側の
拡開によって当該本管３４に一体形成されてなる構成
（１Ｂ）を採用しているから、外套部材１を別部品とし
て製作する必要がなく、それだけ部材コストが低減され
る。According to a third aspect of the present invention, in the splitter / junction of the first aspect, the outer jacket member 1 is formed integrally with the main pipe 34 by expanding one end of the main pipe 34 (1B). Therefore, it is not necessary to manufacture the mantle member 1 as a separate part, and the member cost is reduced accordingly.
【００１６】請求項４の発明では、前記請求項１〜３の
いずれかの分合流器において、前記外套部材１内の枝管
接続部材２よりも内奥側に、該枝管接続部材２との対向
端面に設けた凹部６と中心貫通孔７とを備えた流路連絡
部材５が装填され、前記凹部６が全部の前記接続孔部３
・・と前記中心貫通孔７とを連絡する連通室８を構成す
るものとしているから、本管３４より流入した冷媒が前
記中心貫通孔７を通り連通室８より全部の枝管３６・・
へ均等に分配され、また逆に複数の枝管３６・・より流
入した冷媒が均等な分圧で合流して連通室８より本管３
４へ流出することになる。According to a fourth aspect of the present invention, in the branching / joining device according to any one of the first to third aspects, the branch pipe connecting member 2 is provided on the inner side of the branch pipe connecting member 2 in the outer jacket member 1. The channel connecting member 5 having the concave portion 6 and the central through-hole 7 provided on the opposite end surface of the connecting hole 3 is loaded.
.. And the central through-hole 7 are connected to each other, so that the refrigerant flowing from the main pipe 34 passes through the central through-hole 7 and all the branch pipes 36 from the communication chamber 8.
, And conversely, the refrigerant flowing in from the plurality of branch pipes 36...
4 will flow out.
【００１７】請求項５の発明では、前記請求項４の分合
流器において、前記流路連絡部材５が凹部６側を径大と
する略円錐形であるから、該流路連絡部材５を外套部材
１の本管接続側から拡開した枝管接続側へのテーバー状
移行部分の内側に芯材として配置させることにより、該
移行部分での内圧を該流路連絡部材５で受けるようにし
て耐圧強度をより向上させ得る。According to a fifth aspect of the present invention, in the diverter / junction according to the fourth aspect, since the flow path connecting member 5 has a substantially conical shape whose diameter is larger on the concave portion 6 side, the flow path connecting member 5 is covered with a jacket. By disposing as a core material inside the Taber-like transition portion from the main pipe connection side to the expanded branch pipe connection side of the member 1, the internal pressure at the transition portion is received by the flow path connecting member 5. The pressure resistance can be further improved.
【００１８】請求項６の発明では、前記請求項１〜５の
いずれかの分合流器において、前記枝管接続部材２（２
Ａ，２Ｂ）が２／３円周以上の円弧形断面をなす３本以
上の接続用溝２１を有する丸軸形であり、外套部材１の
拡開した一端側が円筒形（大径筒部１１）である構成を
採用しているから、外套部材１及び枝管接続部材２をよ
り容易に且つ安価に製作できると共に、接続孔部３内に
おける各枝管３６の挿嵌端部３６ａはその円周の大部分
が枝管接続部材２の接続用溝２１に抱持される形にな
り、各枝管３６の連結強度がより大きくなる。According to a sixth aspect of the present invention, in the branching device according to any one of the first to fifth aspects, the branch pipe connecting member 2 (2
A, 2B) is a round shaft having three or more connection grooves 21 having an arc-shaped cross section of not less than 2/3 circumference, and one end of the outer jacket member 1 is cylindrical (large-diameter cylindrical portion). 11), the mantle member 1 and the branch pipe connecting member 2 can be manufactured more easily and inexpensively, and the insertion end portion 36a of each branch pipe 36 in the connection hole 3 has the same structure. Most of the circumference is held in the connecting groove 21 of the branch pipe connecting member 2, and the connection strength of each branch pipe 36 is further increased.
【００１９】請求項７の発明では、前記請求項１〜５の
いずれかの分合流器において、前記枝管接続部材２（２
Ｃ）が１／２円周以下の円弧形断面をなす２本の接続用
溝２１を径方向両側に備え、外套部材１（１Ｂ）の拡開
した一端側が略楕円形（楕円筒部１７）をなす構成であ
るため、分岐が２路である場合に、外套部材１の拡開し
た一端側の内側断面積に占める枝管接続部材２の断面積
比率を小さく設定でき、これによって冷媒が本管３４か
ら枝管３６，３６へ流れる際に該枝管接続部材２の内端
位置での圧損が低減される。According to a seventh aspect of the present invention, in the branching device according to any one of the first to fifth aspects, the branch pipe connecting member 2 (2
C) is provided with two connecting grooves 21 having an arc-shaped cross section of not more than 円 circumference on both sides in the radial direction, and the expanded one end side of the mantle member 1 (1B) is substantially elliptical (elliptic cylindrical portion 17). ), The ratio of the cross-sectional area of the branch pipe connecting member 2 to the inner cross-sectional area of the expanded one end of the outer jacket member 1 can be set to be small when the number of branches is two. When flowing from the main pipe 34 to the branch pipes 36, 36, the pressure loss at the inner end position of the branch pipe connecting member 2 is reduced.
【００２０】[0020]
【発明の実施の形態】図１（Ａ）〜（Ｃ）は本発明の分
合流器に用いる銅製押出型材よりなる枝管接続部材２の
構成例を示す。同図（Ａ）に示す枝管接続部材２Ａは３
路分岐用であり、丸軸状の周面に各々２／３円周以上の
円弧形断面をなす軸方向に平行な３本の接続用溝２１が
等配形成されている。同図（Ｂ）に示す枝管接続部材２
Ｂは４路分岐用であり、丸軸状の周面に同様の４本の接
続用溝２１が等配形成されている。また同図（Ｃ）に示
す枝管接続部材２Ｃは２路分岐用であり、各々１／２円
周以下の円弧形断面をなす軸方向に平行な２本の接続用
溝２１が丸軸状の径方向両側に形成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1A to 1C show an example of the construction of a branch pipe connecting member 2 made of a copper extruded die used in a shunt and splitter according to the present invention. The branch pipe connecting member 2A shown in FIG.
Three connection grooves 21 which are parallel to the axial direction and have an arc-shaped cross-section of 2/3 or more are formed on the round shaft-shaped peripheral surface. Branch pipe connecting member 2 shown in FIG.
B is for four-way branching, and the same four connection grooves 21 are equally formed on the round shaft-shaped peripheral surface. The branch pipe connecting member 2C shown in FIG. 4C is for two-way branching, and two connecting grooves 21 each having an arc-shaped cross section of 1/2 circle or less and being parallel to the axial direction are round shafts. Are formed on both sides in the radial direction.
【００２１】なお、これら枝管接続部材２Ａ〜２Ｃの接
続用溝２１は、押出成形ラインにおいて浅い溝を有する
状態の略丸棒状に連続的に押出形成される銅型材を、引
き続いて複数のダイスに順次通過させて当該溝を次第に
深くする方法によって容易に形成できる。しかして、接
続用溝２１の大きさは、断面円弧の形成円の径が接続す
べき枝管３６の外径よりも若干大きくなるように設定さ
れる。The connecting grooves 21 of the branch pipe connecting members 2A to 2C are formed by continuously extruding a copper mold material into a substantially round bar shape having a shallow groove in an extrusion molding line. Can be easily formed by a method in which the groove is gradually deepened by sequentially passing the grooves. Thus, the size of the connection groove 21 is set such that the diameter of the circle forming the arc of cross section is slightly larger than the outer diameter of the branch pipe 36 to be connected.
【００２２】なお、接続用溝２１の代えて貫通孔を設け
ることは、銅の押出手段では不可能であり、鍛造か切削
による穿孔によるしかなく、製造上の利点がほとんどな
い。It is impossible to provide a through hole in place of the connecting groove 21 by means of copper extrusion, but only by forging or cutting, and there is almost no advantage in production.
【００２３】図２は、本発明の分合流器に用いる流路連
絡部材５の一構成例を示す。この流路連絡部材５は、真
鍮ダイキャスト製品等よりなり、円錐部５ａの径大側の
端部に環状突縁部５ｂが連設されると共に、同径小側の
端部に短い丸軸部５ｃが連設され、前記環状突縁部５ｂ
によって径大側の端面には中央側がやや浅くなった凹部
６を有すると共に、この凹部６の中央より丸軸部５ｃの
端面に至る中心貫通孔７を備えている。しかして、この
流路連絡部材５の最大外径つまり環状突縁部５ｂの外径
は、前記の枝管接続部材２Ａ又は２Ｂの外径と等しくな
るように設定されている。FIG. 2 shows an example of the structure of the flow path connecting member 5 used in the diverter / splitter of the present invention. The flow path connecting member 5 is made of a brass die-cast product or the like. An annular protruding edge 5b is continuously provided at the large-diameter end of the conical portion 5a, and a short round shaft is provided at the small-diameter end. Part 5c is continuously provided, and the annular protruding edge part 5b is provided.
The end face on the larger diameter side has a recess 6 whose center is slightly shallower, and a center through hole 7 extending from the center of the recess 6 to the end face of the round shaft portion 5c. The maximum outer diameter of the flow path connecting member 5, that is, the outer diameter of the annular protruding edge portion 5b is set to be equal to the outer diameter of the branch pipe connecting member 2A or 2B.
【００２４】図３〜図６は、前記の枝管接続部材２Ａ及
び流路連絡部材５と外套部材１Ａとを用いた第一実施例
の分合流器をを示す。この分合流器における外套部材１
Ａは、銅管短材の拡開又は絞り加工にて形成されたもの
で、一端側が前記枝管接続部材２Ａの外径に略対応する
内径に拡開した大径筒部１１、他端側が前記流路連絡部
材５の丸軸部５ｃの外径に略対応する内径の小径筒部１
２、中間が該流路連絡部材５の円錐部５ａに対応するテ
ーパー筒部１３をなし、両端が開放している。なお、小
径筒部１２の内径は本管３４の外径よりも僅かに大きく
なにように設定される。FIGS. 3 to 6 show a first embodiment of the diverter using the branch pipe connecting member 2A, the flow path connecting member 5 and the outer jacket member 1A. Mantle member 1 in this diverter
A is a large-diameter cylindrical portion 11 whose one end is expanded to an inner diameter substantially corresponding to the outer diameter of the branch pipe connecting member 2A, and the other end is formed by expanding or drawing a copper pipe short material. A small-diameter cylindrical portion 1 having an inner diameter substantially corresponding to the outer diameter of the round shaft portion 5c of the flow path connecting member 5.
2. The middle portion forms a tapered cylindrical portion 13 corresponding to the conical portion 5a of the flow path connecting member 5, and both ends are open. The inner diameter of the small-diameter cylindrical portion 12 is set to be slightly larger than the outer diameter of the main pipe 34.
【００２５】上記第一実施例の分合流器の組立製作つま
り冷媒流路の３路分岐部の組付けを行うには、まず図３
に示すように、外套部材１Ａの内部に、前記の枝管接続
部材２Ａ及び流路連絡部材５を、後者が内奥に位置する
ように大径筒部１１側の開口部から挿嵌する。これによ
り、図４に示すように、流路連絡部材５が丸軸部５ｃを
小径筒部１２に突入する状態でテーパー筒部１３の位置
に納まると共に、枝管接続部材２Ａは内端周縁が流路連
絡部材５の環状突縁部５ｂに当接するが、各接続用溝２
１が流路連絡部材５の凹所６に臨む状態になる。しかし
て、該枝管接続部材２Ａの各接続用溝２１と外套部材１
Ａの内周面との間で接続孔部３が構成される。なお、こ
の嵌装状態において、外套部材１Ａの大径筒部１１側の
開口端縁１１ａが枝管接続部材２Ａの外端よりも若干突
出するように設定される。In order to assemble and manufacture the diverter / splitter of the first embodiment, that is, to assemble the three-way branch portion of the refrigerant channel, first, FIG.
As shown in (1), the branch pipe connecting member 2A and the flow path connecting member 5 are inserted into the outer jacket member 1A from the opening on the side of the large-diameter cylindrical portion 11 so that the latter is located inside. Thereby, as shown in FIG. 4, the channel connecting member 5 is settled at the position of the tapered tube portion 13 with the round shaft portion 5c protruding into the small-diameter tube portion 12, and the branch pipe connecting member 2A has an inner peripheral edge. Each of the connecting grooves 2 abuts against the annular protruding edge 5 b of the flow path connecting member 5.
1 faces the recess 6 of the flow path connecting member 5. Thus, each connecting groove 21 of the branch pipe connecting member 2A and the jacket member 1 are connected.
A connection hole portion 3 is formed between the inner peripheral surface of A and the inner peripheral surface. In this fitted state, the opening edge 11a on the large-diameter cylindrical portion 11 side of the outer jacket member 1A is set to slightly protrude from the outer end of the branch pipe connecting member 2A.
【００２６】次に、図４に示すように、枝管３６・・を
各接続孔部３に挿嵌すると共に、外套部材１Ａの小径筒
部１２に本管３４を挿嵌する。そして、図５に示すよう
に外側から絞り込み加工を行うことにより、延性のよい
銅製である枝管接続部材２の各接続用溝２１が円弧半径
を小さくするように変形して各枝管３６に圧着し、各枝
管３６の挿嵌端部３６ａが接続孔部３で強固に抱持され
る一方、本管３４の挿嵌部も外套部材１Ａの小径筒部１
２に抱持される。かくして枝管３６・・及び本管３４を
接続したのち、図６に示すように、枝管接続部材２Ａの
外端側において当該接続部材２Ａと枝管３６・・及び外
套部材１の開口端縁１１ａとをロウ付け４すると共に、
外套部材１Ａの小径筒部１２側でも本管３４をロウ付け
４し、３路分岐部の組付けを完了する。Next, as shown in FIG. 4, the branch pipes 36 are inserted into the respective connection holes 3, and the main pipes 34 are inserted into the small-diameter cylindrical portion 12 of the jacket 1A. Then, as shown in FIG. 5, by performing drawing from the outside, each connection groove 21 of the branch pipe connecting member 2 made of copper having good ductility is deformed so as to reduce the arc radius, and each branch pipe 36 is formed. The insertion ends 36a of the branch pipes 36 are firmly held in the connection holes 3 while the insertion fittings of the main pipes 34 are also small.
2 embraced. After connecting the branch pipes 36 and the main pipe 34 in this manner, as shown in FIG. 6, at the outer end side of the branch pipe connecting member 2A, the opening edges of the connecting members 2A, the branch pipes 36. 11a and brazing 4
The main pipe 34 is also brazed 4 on the small-diameter cylindrical portion 12 side of the outer jacket member 1A, and the assembly of the three-way branch portion is completed.
【００２７】上記の枝管３６・・及び本管３４のロウ付
け４においては、外套部材１Ａ及び枝管接続部材２Ａが
枝管３６及び本管３４と同じ銅製であるため、そのロウ
付け操作は非常に容易であり、且つロウ付け４部分は銅
同士の接合であるために大きな固着強度が得られる。し
かして、この分合流器にて構成される冷媒流路の３路分
岐部は、上記のように枝管３６及び本管３４のロウ付け
４部分の固着強度が大きい上に、各枝管３６は前記のよ
うに接続孔部３で強固に抱持されており、また外套部材
１Ａの内側の略全体に枝管接続部材２及び流路連絡部材
５が芯材として収まっていることから、非常に高い耐圧
強度を具備し、フロン系冷媒に代わる高圧化を要する新
冷媒の使用に充分に対応できる。In the brazing 4 of the branch pipes 36 and the main pipe 34, the brazing member 1A and the branch pipe connecting member 2A are made of the same copper as the branch pipe 36 and the main pipe 34. It is very easy, and since the four brazing portions are copper-to-copper joints, a large fixing strength can be obtained. Thus, the three-way branch portion of the refrigerant flow path constituted by the branching / joining device has a large fixing strength of the brazing portion 4 of the branch pipe 36 and the main pipe 34 as described above, Is firmly held by the connection hole 3 as described above, and since the branch pipe connecting member 2 and the flow path connecting member 5 are accommodated as a core material substantially in the entire inside of the mantle member 1A, an extremely It has a high pressure resistance and can sufficiently cope with the use of a new refrigerant that requires a higher pressure instead of a CFC-based refrigerant.
【００２８】なお、上記第一実施例では３路分岐用とし
て枝管接続部材２Ａを使用したものを例示したが、この
代わりに図１（Ｂ）に示す４路分岐用の枝管接続部材２
Ｂや、更に５路以上の分岐用として対応する数の接続用
溝２１を有する丸軸状の枝管接続部材を用い、第一実施
例と同様にして４路以上の多分岐部を構成できる。しか
して、分岐数がいずれの場合でも、本管３４より流入し
た冷媒は流路連絡部材５の前記中心貫通孔７を通り連通
室８より全部の枝管３６・・へ均等に分配され、また逆
に複数の枝管３６・・より流入した冷媒は均等な分圧で
合流して連通室８より本管３４へ流出することになる。Although the first embodiment uses the branch pipe connecting member 2A for three-way branching, the branch pipe connecting member 2 for four-way branching shown in FIG.
A multi-branch portion having four or more paths can be configured in the same manner as in the first embodiment by using a B or a round shaft-shaped branch pipe connecting member having a corresponding number of connection grooves 21 for branching five or more paths. . Thus, regardless of the number of branches, the refrigerant flowing from the main pipe 34 passes through the central through hole 7 of the flow path connecting member 5 and is evenly distributed from the communication chamber 8 to all the branch pipes 36. Conversely, the refrigerant flowing in from the plurality of branch pipes 36 joins at an equal partial pressure and flows out from the communication chamber 8 to the main pipe 34.
【００２９】図７〜図９は図１（Ｃ）に示す枝管接続部
材２Ｃ用いた第二実施例の分合流器を示す。この分合流
器における外套部材１Ｂは、図７に示すように本管３４
自体の端部を拡開加工して形成したものであり、基部側
からテーパー部１４、中間円筒部１５、移行拡開部１
６、楕円筒部１４と順次拡開し、中間円筒部１５の径と
楕円筒部１４の短径とが略同じになった形状を有してい
る。FIGS. 7 to 9 show a second embodiment of a diverter using the branch pipe connecting member 2C shown in FIG. 1C. As shown in FIG.
It is formed by expanding the end of itself, and the tapered portion 14, the intermediate cylindrical portion 15, the transitional expanded portion 1
6. The elliptical cylinder 14 is sequentially expanded to have a shape in which the diameter of the intermediate cylinder 15 and the minor axis of the elliptical cylinder 14 are substantially the same.
【００３０】上記第二実施例の分合流器の組立製作つま
り冷媒流路の２路分岐部の組付けを行うには、まず図７
に示すように、外套部材１Ｂの内部に、前記の枝管接続
部材２Ｃを、両接続用溝２１，２１が楕円筒部１７の長
径側に臨む向きとして挿嵌する。これにより枝管接続部
材２Ｃは、図８に示すように、内端が移行拡開部１６の
中間位置まで侵入し、外端が楕円筒部１７側の開口端縁
１７ａよりもやや内側になる状態で配置し、該枝管接続
部材２Ｃの各接続用溝２１と外套部材１Ｂの内周面との
間で接続孔部３が構成される。In order to assemble and manufacture the splitter / splitter of the second embodiment, that is, to assemble the two-way branch portion of the refrigerant channel, first, FIG.
As shown in (1), the branch pipe connecting member 2C is inserted into the outer jacket member 1B in such a manner that both the connecting grooves 21 and 21 face the longer diameter side of the elliptical cylindrical portion 17. As a result, as shown in FIG. 8, the inner end of the branch pipe connecting member 2 </ b> C enters the intermediate position of the transition expanding part 16, and the outer end is slightly inside the opening edge 17 a on the elliptical cylindrical part 17 side. The connection holes 3 are formed between the connection grooves 21 of the branch pipe connection member 2C and the inner peripheral surface of the jacket member 1B.
【００３１】次に、図８に示すように枝管３６，６６を
各接続孔部３に挿嵌するが、絞り形状の移行拡開部１６
がストッパーとなり、各枝管３６の挿嵌端部３６ａは楕
円筒部１７まで進入した状態となる。そして、この状態
で外側から絞り込み加工を行うことにより、各接続孔部
３において延性のよい銅製である外套部材１Ｂの周壁と
枝管接続部材２Ｃの接続用溝２１とが共に枝管３６に圧
着するように変形し、各枝管３６の挿嵌端部３６ａが接
続孔部３で強固に抱持される。かくして枝管３６，３６
と本管３４とを接続したのち、図９に示すように、枝管
接続部材２Ｃの外端側において当該接続部材２Ｃと枝管
３６，３６及び外套部材１Ｂの開口端縁１７ａとをロウ
付け４して２路分岐部の組付けを完了する。なお、図１
０（イ）は図９のイ−イ線の断面矢視図、図１０（ロ）
は図９のロ−ロ線の断面矢視図である。Next, as shown in FIG. 8, the branch pipes 36, 66 are inserted into the respective connection holes 3, but the transitional expansion part 16 having a throttle shape is used.
Serves as a stopper, and the insertion end portion 36a of each branch pipe 36 enters the elliptic cylindrical portion 17. In this state, by performing the drawing process from the outside, the peripheral wall of the jacket member 1B made of copper having good ductility and the connection groove 21 of the branch pipe connection member 2C are both pressed against the branch pipe 36 in each connection hole 3. As a result, the insertion end 36a of each branch pipe 36 is firmly held by the connection hole 3. Thus, the branch pipes 36, 36
After connecting the main pipe 34 and the main pipe 34, as shown in FIG. 9, the connecting member 2C is brazed to the opening end 17a of the branch pipes 36, 36 and the outer jacket member 1B on the outer end side of the branch pipe connecting member 2C. 4 to complete the assembly of the two-way branch. FIG.
0 (a) is a sectional view taken along the line II in FIG. 9, and FIG. 10 (b).
FIG. 10 is a cross-sectional view taken along a roll line in FIG. 9.
【００３２】この第二実施例においても、外套部材１Ｂ
（本管３４）及び枝管接続部材２Ｃが枝管３６と同じ銅
製であるため、そのロウ付け操作は非常に容易であり、
且つロウ付け４部分は銅同士の接合であるために大きな
固着強度が得られる。しかして、この分合流器にて構成
される冷媒流路の２路分岐部は、上記のようにロウ付け
４部分の固着強度が大きい上、各枝管３６が前記のよう
に接続孔部３で強固に抱持され、また外套部材１Ｂ内に
枝管接続部材２Ｃが芯材として収まっていることから、
フロン系冷媒に代わる高圧化を要する新冷媒の使用に充
分に対応できる非常に高い耐圧強度を発揮する。また外
套部材１Ｂの内側断面積に占める枝管接続部材２Ｃの断
面積比率が小さいため、冷媒が本管３４から枝管３６，
３６へ流れる際の圧損が少なくなるという利点もある。Also in the second embodiment, the mantle member 1B
Since the (main pipe 34) and the branch pipe connecting member 2C are made of the same copper as the branch pipe 36, the brazing operation thereof is very easy.
In addition, since the four brazing portions are joints of copper, a large fixing strength can be obtained. Thus, the two-way branch portion of the refrigerant flow path constituted by the branching / joining device has a large fixing strength at the brazing portion 4 as described above, and each branch pipe 36 has the connection hole portion 3 as described above. Since the branch pipe connecting member 2C is housed in the mantle member 1B as a core material,
Exhibits extremely high pressure resistance enough to cope with the use of new refrigerants that require high pressure instead of CFC-based refrigerants. Further, since the cross-sectional area ratio of the branch pipe connecting member 2C to the inner cross-sectional area of the mantle member 1B is small, the refrigerant flows from the main pipe 34 to the branch pipe 36,
There is also an advantage that pressure loss at the time of flowing to 36 is reduced.
【００３３】なお、上記の第二実施例では外套部材１Ｂ
内に枝管接続部材２Ｃのみを装填した構造を例示した
が、第一実施例と同様に内奥側に図２に示すような流路
連絡部材５を装填することも可能であり、この流路連絡
部材５が外套部材１Ｂのテーパー部１４から中間円筒部
１５にわたる部分の芯材となるから、耐圧強度がより向
上することになる。また図１（Ａ），（Ｂ）に示す枝管
接続部材２Ａ，２Ｂを用いる３路以上の分岐部について
も、第一実施例のような独立部品とした外套部材１Ａを
用いる代わりに、本管３４の端部を外套部材１Ａに対応
する形状に拡開加工して得られる本管３４と一体の外套
部材１を用いることも可能である。In the second embodiment, the mantle member 1B is used.
Although the structure in which only the branch pipe connecting member 2C is loaded therein is illustrated, it is also possible to load the flow path connecting member 5 as shown in FIG. Since the road connecting member 5 becomes the core of the portion extending from the tapered portion 14 to the intermediate cylindrical portion 15 of the mantle member 1B, the pressure resistance is further improved. Also, as for the three or more branch portions using the branch pipe connecting members 2A and 2B shown in FIGS. 1A and 1B, instead of using the outer member 1A which is an independent component as in the first embodiment, the present invention is not limited to this. It is also possible to use the mantle member 1 integrated with the main tube 34 obtained by expanding the end of the tube 34 into a shape corresponding to the mantle member 1A.
【００３４】[0034]
【発明の効果】請求項１の発明によれば、空調装置（ヒ
ートポンプ）や冷凍機を始めとする種々の空調機器等に
おける冷媒流路の分岐部に介在させる分合流器として、
銅製の外套部材内に、周面に複数本の円弧形断面の接続
用溝を有する銅製押出型材よりなる枝管接続部材が嵌装
され、この枝管接続部材の各接続用溝を利用して銅製の
枝管を挿嵌し、外側からの絞り込みによって該枝管を固
着すると共にロウ付けを行う構成としていることから、
高品質で耐圧強度に優れ、フロン系冷媒に代わる新冷媒
の使用に充分に対応でき、しかも組立製作が容易で、従
来の分合流器に比較して部材コスト及び加工コストを大
きく低減できるものが提供される。According to the first aspect of the present invention, there is provided a diverter which is interposed in a branch of a refrigerant flow path in various types of air conditioners such as an air conditioner (heat pump) and a refrigerator.
A branch pipe connection member made of a copper extruded die having a plurality of arc-shaped cross-section connection grooves on the peripheral surface is fitted in a copper jacket member, and each connection groove of the branch pipe connection member is used. Since the copper branch pipe is inserted and fitted, and the branch pipe is fixed and brazed by narrowing down from the outside,
High quality, excellent pressure resistance, can fully cope with the use of new refrigerants instead of CFC-based refrigerants, and is easy to assemble and manufacture, and can greatly reduce the cost of members and processing compared to conventional shunts. Provided.
【００３５】請求項２の発明によれば、上記の分合流器
として、特に量産化が容易であると共に、冷媒流路の管
路構成に応じて適所に分岐部を設けることができ、該管
路の設計仕様上の制約の少ないものが提供される。According to the second aspect of the present invention, it is easy to mass-produce, and a branch portion can be provided at an appropriate position in accordance with the configuration of the refrigerant flow path. Roads with less restrictions on road design specifications are provided.
【００３６】請求項３の発明によれば、上記の分合流器
において、部材コストをより低減できるという利点があ
る。According to the third aspect of the present invention, there is an advantage in that the member cost can be further reduced in the above-mentioned branching / shunting device.
【００３７】請求項４の発明によれば、上記の分合流器
として、流路連絡部材の介在により、本管から流入した
冷媒を複数本の枝管へ均等に分配でき、また逆に複数本
の枝管から流入した冷媒を均等な分圧で合流して本管へ
流出させることができ、もって冷媒流路の分岐に対応す
る複数の熱交換部における熱交換効率が均一化してより
高性能となるものが提供される。According to the fourth aspect of the present invention, as the above-mentioned branching / joining device, the refrigerant flowing from the main pipe can be evenly distributed to the plurality of branch pipes by the interposition of the flow path connecting member. The refrigerant flowing from the branch pipe can be merged at an even partial pressure and flow out to the main pipe, so that the heat exchange efficiency in the multiple heat exchange sections corresponding to the branch of the refrigerant flow path is uniformed, resulting in higher performance Is provided.
【００３８】請求項５の発明によれば、特に上記の流路
連絡部材を介在する分合流器において、耐圧強度がより
向上するという利点がある。According to the fifth aspect of the present invention, there is an advantage that the pressure-resistant strength is further improved, particularly in the branching / joining device having the above-mentioned flow path connecting member.
【００３９】請求項６の発明によれば、特に分岐を３路
以上とする上記の分合流器において、外套部材及び枝管
接続部材をより容易に且つ安価に製作できると共に、各
枝管の連結強度がより大きくなるという利点がある。According to the sixth aspect of the present invention, in the above-mentioned branching / joining device having three or more branches, the jacket member and the branch pipe connecting member can be manufactured more easily and inexpensively, and the branch pipes are connected. The advantage is that the strength is higher.
【００４０】請求項７の発明によれば、特に分岐を２路
とする上記の分合流器において、冷媒が本管から枝管へ
流れる際の圧損を低減できるという利点がある。According to the invention of claim 7, there is an advantage that the pressure loss when the refrigerant flows from the main pipe to the branch pipe can be reduced particularly in the above-mentioned branching / splitter having two branches.
【図１】 本発明の分合流器に用いる枝管接続部材の構
成例を示し、（Ａ）は３路分岐用の同部材２Ａの斜視
図、（Ｂ）は４路分岐用の同部材２Ｂの斜視図、（Ｃ）
は２路分岐用の同部材２Ｃの斜視図である。1A and 1B show a configuration example of a branch pipe connecting member used for a branching / splitter of the present invention, wherein FIG. 1A is a perspective view of the same member 2A for three-way branching, and FIG. 1B is the same member 2B for four-way branching; Perspective view of (C)
Is a perspective view of the same member 2C for two-way branching.
【図２】 同分合流器に用いる流路連絡部材の構成例を
示す斜視図である。FIG. 2 is a perspective view showing a configuration example of a flow path connecting member used in the same branching / joining device.
【図３】 本発明の第一実施例の分合流器の分解斜視図
である。FIG. 3 is an exploded perspective view of the splitter / shunter according to the first embodiment of the present invention.
【図４】 同第一実施例の分合流器の組立製作操作を示
す斜視図である。FIG. 4 is a perspective view showing an assembling / manufacturing operation of the splitter / shunter of the first embodiment.
【図５】 同第一実施例の分合流器の絞り込み加工前の
状態における横断面図である。FIG. 5 is a cross-sectional view of the shunt of the first embodiment in a state before a drawing process.
【図６】 同第一実施例の分合流器の組立製作後の縦断
側面図である。FIG. 6 is a vertical sectional side view after assembling and manufacturing of the shunt / sink according to the first embodiment.
【図７】 本発明の第二実施例の分合流器の分解斜視図
である。FIG. 7 is an exploded perspective view of a splitter / shunter according to a second embodiment of the present invention.
【図８】 同第二実施例の分合流器の組立製作操作を示
す斜視図である。FIG. 8 is a perspective view showing an assembling / manufacturing operation of the splitter / shunter of the second embodiment.
【図９】 同第二実施例の分合流器の組立製作後の縦断
側面図である。FIG. 9 is a vertical sectional side view after assembling and manufacturing of the shunt and combiner of the second embodiment.
【図10】 同第二実施例の分合流器の横断面を示し、
（イ）は図９のイ−イ線の断面矢視図、（ロ）は図９の
ロ−ロ線の断面矢視図である。FIG. 10 shows a cross-section of the shunt of the second embodiment,
(A) is a sectional view taken along the line II in FIG. 9, and (B) is a sectional view taken along the line RO in FIG. 9.
【図11】 空調機器等の一例である空調装置の概略構成
図である。FIG. 11 is a schematic configuration diagram of an air conditioner that is an example of an air conditioner or the like.
【図12】 従来における冷媒流路の２路分岐部の構成例
を示し、（イ）は本管と枝管との接続前の斜視図、
（ロ）は同接続後の斜視図である。FIG. 12 shows a configuration example of a conventional two-way branch portion of a refrigerant flow path, where (a) is a perspective view before connection of a main pipe and a branch pipe,
(B) is a perspective view after the connection.
【図13】 従来の分合流器の一例を示す縦断側面図であ
る。FIG. 13 is a vertical sectional side view showing an example of a conventional shunt / merge.
【図14】 従来の分合流器の他の例を示す縦断側面図で
ある。FIG. 14 is a longitudinal sectional side view showing another example of the conventional branching / sinking device.
【図15】 従来の分合流器の更に他の例を示す縦断側面
図である。FIG. 15 is a vertical sectional side view showing still another example of the conventional splitter / splitter.
１（１Ａ〜１Ｃ） 外套部材 １１ 大径筒部（一端側） １３ 小径筒部（他端側） １７ 楕円筒部（一端側） ２（２Ａ〜２Ｃ） 枝管接続部材 ２１ 接続用溝 ３ 接続孔部 ４ ロウ付け ５ 流路連絡部材 ６ 凹部 ７ 中心貫通孔 ８ 連通室 ３４ 本管 ３６ 枝管 ３６ａ 挿嵌端部 DESCRIPTION OF SYMBOLS 1 (1A-1C) Mantle member 11 Large diameter cylindrical part (one end side) 13 Small diameter cylindrical part (other end side) 17 Elliptic cylindrical part (one end side) 2 (2A-2C) Branch pipe connecting member 21 Connection groove 3 Connection Hole 4 Brazing 5 Flow path connecting member 6 Depression 7 Center through hole 8 Communication chamber 34 Main pipe 36 Branch pipe 36a Insertion end
Claims (7)
せる分合流器であって、拡開した一端側が開放すると共
に他端側が本管に接続する銅製の外套部材内に、周面に
軸方向に平行な複数本の円弧形断面の接続用溝を有する
銅製押出型材よりなる枝管接続部材が前記の拡開した一
端側から嵌装され、この枝管接続部材の各接続用溝と外
套部材との間で構成される接続孔部に、それぞれ銅製の
枝管の端部が挿嵌され、これら枝管の挿嵌端部が外套部
材の外側からの絞り込みによって前記接続孔部の内面に
密着すると共に、枝管接続部材の外端側で当該枝管接続
部材と前記外套部材と各枝管とがロウ付けされてなる空
調機器等における冷媒の分合流器。1. A splitter / distributor which is interposed in a branch of a refrigerant flow path of an air conditioner or the like, and has a peripheral surface formed in a copper jacket member having one end opened and the other end connected to a main pipe. A branch pipe connecting member made of a copper extruded die having a plurality of arc-shaped cross-section connecting grooves parallel to the axial direction is fitted from one end of the expanded side, and each branch pipe connecting member is connected to the branch pipe connecting member. The ends of the copper branch pipes are inserted into the connection holes formed between the groove and the jacket member, and the insertion ends of these branch pipes are narrowed from the outside of the jacket member so that the connection holes are inserted. A refrigerant splitter for an air conditioner or the like, wherein the branch pipe connecting member, the jacket member, and each branch pipe are brazed on the outer end side of the branch pipe connecting member while being in close contact with the inner surface of the branch pipe connecting member.
すると共に、他端側が本管に嵌合させる接続用円筒部を
なす独立部品よりなる請求項１記載の空調機器等におけ
る冷媒の分合流器。2. The refrigerant for an air conditioner or the like according to claim 1, wherein the outer jacket member is formed by an independent part which has one end side expanded and opened and the other end side formed as a connection cylindrical portion fitted to the main pipe. Divider.
開によって当該本管に一体形成されてなる請求項１記載
の空調機器等における冷媒の分合流器。3. The refrigerant branching device according to claim 1, wherein the jacket member is formed integrally with the main pipe by expanding one end of the main pipe.
奥側に、該枝管接続部材との対向端面に設けた凹部と中
心貫通孔とを備えた流路連絡部材が装填され、前記凹部
が全部の前記接続孔部と前記中心貫通孔とを連絡する連
通室を構成する請求項１〜３のいずれかに記載の空調機
器等における冷媒の分合流器。4. A channel connecting member having a concave portion and a central through-hole provided on an end face facing the branch pipe connecting member, which is located on the inner side of the branch pipe connecting member in the outer jacket member, The refrigerant divider / splitter in an air conditioner or the like according to any one of claims 1 to 3, wherein the recess forms a communication chamber that connects all the connection holes and the center through hole.
略円錐形である請求項４記載の空調機器等における冷媒
の分合流器。5. The refrigerant splitter / diverter in an air conditioner or the like according to claim 4, wherein the flow passage connecting member has a substantially conical shape whose diameter is larger on the concave side.
弧形断面をなす３本以上の接続用溝を有する丸軸形であ
り、外套部材の拡開した一端側が円筒形である請求項１
〜５のいずれかに記載の空調機器等における冷媒の分合
流器。6. The branch pipe connecting member has a round shaft shape having three or more connecting grooves having an arc-shaped cross section of not less than 2/3 circumference, and an expanded one end side of the jacket member has a cylindrical shape. Certain claim 1
6. A diverter / shunter for a refrigerant in an air conditioner or the like according to any one of claims 5 to 5.
弧形断面をなす２本の接続用溝を径方向両側に備え、外
套部材の拡開した一端側が略楕円形をなす請求項１〜５
のいずれかに記載の空調機器等における冷媒の分合流
器。7. The branch pipe connecting member is provided with two connecting grooves having an arc-shaped cross section of not more than a 円 circumference on both radial sides, and one end of the jacket member that is expanded has a substantially elliptical shape. Claims 1-5
A refrigerant divider / slave in an air conditioner or the like according to any one of the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08164904A JP3076522B2 (en) | 1996-06-25 | 1996-06-25 | Refrigerant splitters in air conditioners, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08164904A JP3076522B2 (en) | 1996-06-25 | 1996-06-25 | Refrigerant splitters in air conditioners, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH109716A true JPH109716A (en) | 1998-01-16 |
| JP3076522B2 JP3076522B2 (en) | 2000-08-14 |
Family
ID=15802082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08164904A Expired - Lifetime JP3076522B2 (en) | 1996-06-25 | 1996-06-25 | Refrigerant splitters in air conditioners, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3076522B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1547715A1 (en) * | 2003-12-26 | 2005-06-29 | Calsonic Kansei Corporation | Connection structure of multi-channel tube with branching tube and connection method therefor |
| JP2014240726A (en) * | 2013-06-12 | 2014-12-25 | 三菱電機株式会社 | Refrigerant distributor, chiller having refrigerant distributor, cooling device having chiller, and assembly process of refrigerant distributor |
| EP2813787A4 (en) * | 2012-02-10 | 2015-12-02 | Daikin Ind Ltd | Air conditioner |
| WO2016133649A1 (en) * | 2015-02-20 | 2016-08-25 | Parker-Hannifin Corporation | Flow distributor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506254B (en) * | 2011-09-30 | 2014-10-15 | 莱芜钢铁集团有限公司 | Crossover coupler for hydraulic oil circuits and reeling machine |
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1996
- 1996-06-25 JP JP08164904A patent/JP3076522B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1547715A1 (en) * | 2003-12-26 | 2005-06-29 | Calsonic Kansei Corporation | Connection structure of multi-channel tube with branching tube and connection method therefor |
| US7152885B2 (en) | 2003-12-26 | 2006-12-26 | Calsonic Kansei Corporation | Connection structure of multi-channel tube with branching tube and connection method therefor |
| EP2813787A4 (en) * | 2012-02-10 | 2015-12-02 | Daikin Ind Ltd | Air conditioner |
| US9765999B2 (en) | 2012-02-10 | 2017-09-19 | Daikin Industries, Ltd. | Air conditioner |
| JP2014240726A (en) * | 2013-06-12 | 2014-12-25 | 三菱電機株式会社 | Refrigerant distributor, chiller having refrigerant distributor, cooling device having chiller, and assembly process of refrigerant distributor |
| WO2016133649A1 (en) * | 2015-02-20 | 2016-08-25 | Parker-Hannifin Corporation | Flow distributor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3076522B2 (en) | 2000-08-14 |
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