JP4483717B2 - Refrigerant shunt - Google Patents

Refrigerant shunt Download PDF

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Publication number
JP4483717B2
JP4483717B2 JP2005175068A JP2005175068A JP4483717B2 JP 4483717 B2 JP4483717 B2 JP 4483717B2 JP 2005175068 A JP2005175068 A JP 2005175068A JP 2005175068 A JP2005175068 A JP 2005175068A JP 4483717 B2 JP4483717 B2 JP 4483717B2
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flow
refrigerant
main body
insertion holes
flow divider
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JP2006349244A (en
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俊 吉岡
牧男 竹内
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Daikin Industries Ltd
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Daikin Industries Ltd
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    • 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

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  • 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)

Description

本願発明は、冷凍装置用の冷媒分流器の構造に関するものである。   The present invention relates to a structure of a refrigerant flow divider for a refrigeration apparatus.

従来の冷媒分流器５では、例えば図９および図１０に示すように、分流器本体５ａの上面部５ｃに設けられる複数本の分流管挿通穴１１，１１・・・の位置（図９）により、分流器本体５ａ内部に挿入された各分流管８ａ〜８ｋの先端側開口部の位置を規制することによって、同開口部を同一円周上に配置（図１０）するようにしている（特許文献１参照）。   In the conventional refrigerant distributor 5, for example, as shown in FIGS. 9 and 10, the position of a plurality of branch pipe insertion holes 11, 11... Provided in the upper surface portion 5 c of the distributor body 5 a (FIG. 9). By restricting the position of the opening on the front end side of each of the flow dividing pipes 8a to 8k inserted into the flow divider main body 5a, the opening is arranged on the same circumference (FIG. 10). Reference 1).

特開２００２−１８８８６９号公報（明細書第１−５頁、図１−図５）JP 2002-188869 A (page 1-5 of the specification, FIGS. 1 to 5)

したがって、従来の構成では、図９および図１０に示すように分流パスの数が多い場合、各分流管８ａ〜８ｋの挿入穴１１，１１・・・を図９のように同一円周上に設けるためには、必然的に分流器本体５ａの直径を大きくする必要があった。   Therefore, in the conventional configuration, when the number of diversion paths is large as shown in FIGS. 9 and 10, the insertion holes 11, 11... Of the diversion pipes 8a to 8k are arranged on the same circumference as shown in FIG. In order to provide it, it was necessary to increase the diameter of the flow distributor main body 5a.

また、分流器本体５ａをコンパクトにするために、上記各分流管８ａ〜８ｋの挿入穴１１，１１・・・を上記分流器本体５ａ上面部５ｃの同一円周上でない箇所に設けるようにした場合、上記分流器本体５ａ内部の各分流管８ａ〜８ｋの先端側開口部の位置が図１０のような同一円周上には揃わなくなるので、偏流が起こり、蒸発器の性能を低下させてしまう問題があった。   Further, in order to make the shunt main body 5a compact, the insertion holes 11, 11... Of the respective shunt pipes 8a to 8k are provided at locations not on the same circumference of the upper surface portion 5c of the shunt main body 5a. In this case, the position of the opening on the tip side of each of the flow dividing pipes 8a to 8k inside the flow divider main body 5a is not aligned on the same circumference as shown in FIG. 10, so that drift occurs and the performance of the evaporator is reduced. There was a problem.

本願発明は、このような問題を解決するためになされたものでなされたもので、分流器本体上面部の分流管挿通穴が同一円周上に設けられていなくても、挿入された分流管の先端が同一円周上に配置されるように構成した冷媒分流器を提供することを目的とするものである。   The present invention was made in order to solve such a problem, and even if the flow dividing pipe insertion hole in the upper surface portion of the flow dividing device body is not provided on the same circumference, the flow dividing pipe is inserted. It is an object of the present invention to provide a refrigerant flow divider configured so that the tip of each is arranged on the same circumference.

本願各発明は、それぞれ上記の問題を解決することを目的としてなされたものであって、次のような有効な課題解決手段を備えて構成されている。   Each invention of the present application has been made for the purpose of solving the above-described problems, and comprises the following effective problem solving means.

（１） 請求項１の発明
この発明は、上下方向に延びる筒体状の分流器本体５ａと、該分流器本体５ａの下端側に設けられた冷媒流入口５ｄと、上記分流器本体５ａの球面状の上面部５ｃに設けられた複数の分流管挿通穴１１，１１・・・と、該複数の分流管挿通穴１１，１１・・・に挿通された複数本の分流管８ａ〜８ｋとからなり、上記冷媒流入口５ｄから流入した冷媒を上記複数本の分流管８ａ〜８ｋを介して複数の冷媒通路に分配する冷媒分流器において、上記分流器本体５ａの上面部５ｃに設けられた複数の分流管挿通穴１１，１１・・・は、同一円周上以外の所望のレイアウトで配置されている一方、同複数の分流管挿通穴１１，１１・・・を介して分流器本体５ａの内部に挿入された複数本の分流管８ａ〜８ｋの先端は、同一円周上に配置されていることを特徴としている。 (1) Invention of Claim 1 This invention is the cylindrical flow-divider main body 5a extended in an up-down direction, 5 d of refrigerant | coolant inlets provided in the lower end side of this flow-divider main body 5a, and the said flow-divider main body 5a. A plurality of branch pipe insertion holes 11, 11... Provided in the spherical upper surface portion 5c, and a plurality of branch pipes 8a to 8k inserted into the plurality of branch pipe insertion holes 11, 11. A refrigerant flow distributor that distributes the refrigerant flowing from the refrigerant inlet 5d to the plurality of refrigerant passages via the plurality of flow dividing pipes 8a to 8k, and is provided on the upper surface portion 5c of the flow divider main body 5a. The plurality of flow dividing pipe insertion holes 11, 11... Are arranged in a desired layout other than on the same circumference, while the flow dividing body 5a is connected via the plurality of flow dividing pipe insertion holes 11, 11.. The tips of the plurality of flow dividing tubes 8a to 8k inserted inside It is characterized in that it is arranged on the circumference.

このような構成によれば、分流器本体上面部５ｃの分流管挿通穴１１，１１・・・の配置状態如何に拘わらず、分流管８ａ〜８ｋの先端側開口部が同一円周上に配設されるので、分流器本体５ａ上面部５ｃの分流管挿通穴１１，１１・・・の配置が自由になり、分流すべきパス数が多くなっても、分流器本体５ａの直径を大きくしなくても済む。   According to such a configuration, regardless of the arrangement state of the diverter tube insertion holes 11, 11... In the upper surface portion 5c of the diverter body, the distal end side openings of the diverter tubes 8a to 8k are arranged on the same circumference. Since the arrangement of the flow dividing pipe insertion holes 11, 11... In the upper surface portion 5c of the flow divider main body 5a becomes free and the number of paths to be diverted increases, the diameter of the flow divider main body 5a is increased. You don't have to.

したがって、パス数が多い場合にも、偏流を生じさせることなく、分流器本体５ａのコンパクト化が可能となる。   Therefore, even when the number of passes is large, the shunt main body 5a can be made compact without causing drift.

（２） 請求項２の発明
この発明では、上記請求項１の発明の構成において、複数本の分流管８ａ〜８ｋは、複数の分流管挿通穴１１，１１・・・内に挿入された後、同一円周方向に設けられた位置決め溝２２ａを有する位置決め治具２２により先端位置を同一円周上に位置決めされた状態で上記分流管挿通穴１１，１１・・・への挿通部をろう付けされていることを特徴としている。 (2) Invention of Claim 2 In this invention, after the multiple branch pipes 8a to 8k are inserted into the multiple branch pipe insertion holes 11, 11. The insertion portions to the branch pipe insertion holes 11, 11... Are brazed with the tip positions positioned on the same circumference by a positioning jig 22 having positioning grooves 22a provided in the same circumferential direction. It is characterized by being.

このような構成によれば、分流器本体５ａ上面部５ｃの分流管挿通穴１１，１１・・・を介して複数本の分流管８ａ〜８ｋを挿入し、その先端を位置決め治具２２の同一円周方向に設けられた位置決め溝２２ａ内に挿入して位置決めした状態で、上記挿通部をろう付けするだけで、各分流管８ａ〜８ｋの先端を簡単に同一円周上に配置することができる。   According to such a configuration, the plurality of flow dividing pipes 8a to 8k are inserted through the flow dividing pipe insertion holes 11, 11... Of the flow distributor main body 5a upper surface portion 5c, and the tips thereof are the same as those of the positioning jig 22. The tip of each of the flow dividing pipes 8a to 8k can be easily arranged on the same circumference simply by brazing the insertion part in a state where the insertion is performed in the positioning groove 22a provided in the circumferential direction. it can.

（３） 請求項３の発明
この発明では、上記請求項１又は２の発明の構成において、分流器本体５ａの下端側冷媒流入口部５ｄが分流器本体５ａと同一部材よりなり、漏斗形状に成形加工されていることを特徴としている。 (3) Invention of Claim 3 In this invention, in the structure of the invention of Claim 1 or 2, the lower end side refrigerant inlet portion 5d of the flow divider main body 5a is made of the same member as the flow divider main body 5a, and has a funnel shape. It is characterized by being molded.

このような構成によれば、漏斗形状の冷媒流入口部５ｄの強度および形状安定性が向上する。   According to such a configuration, the strength and shape stability of the funnel-shaped refrigerant inlet portion 5d are improved.

（４） 請求項４の発明
この発明では、上記請求項１又は２の発明の構成において、分流器本体５ａの下端側冷媒流入口部５ｄが分流器本体５ａとは別部材よりなり、漏斗形状に成形加工された後、接合により一体化されていることを特徴としている。 (4) Invention of Claim 4 In this invention, in the configuration of the invention of Claim 1 or 2, the lower end side refrigerant inlet portion 5d of the flow divider main body 5a is made of a separate member from the flow divider main body 5a, and has a funnel shape. It is characterized by being integrated by bonding after being formed into a shape.

このような構成の場合、漏斗形状の冷媒流入口部５ｄの成形加工が容易になる。   In the case of such a configuration, it becomes easy to mold the funnel-shaped refrigerant inlet portion 5d.

以上の結果、本願発明によると、次のような有益な効果が得られる。   As a result, according to the present invention, the following beneficial effects can be obtained.

（１） 分流管からの偏流の発生を抑制できるようになり、偏流による蒸発器性能の低下を有効に防止することができる。   (1) It becomes possible to suppress the occurrence of drift from the shunt pipe, and it is possible to effectively prevent a decrease in evaporator performance due to the drift.

（２） 分流器本体上面部の分流管挿通穴を同一円周上に配置しなくても良いため、分流器本体の直径が小さくて済み、分流器本体を可及的コンパクトに形成することができる。   (2) Since it is not necessary to arrange the branch pipe insertion holes on the upper surface of the flow divider main body on the same circumference, the diameter of the flow distributor main body can be small, and the flow distributor main body can be formed as compact as possible. it can.

図１〜図４は、本願発明の最良の実施の形態に係る冷凍装置用冷媒分流器の構成、図５は、同冷媒分流器の製造方法を示している。   1 to 4 show a configuration of a refrigerant flow divider for a refrigeration apparatus according to the best mode of the present invention, and FIG. 5 shows a method for manufacturing the refrigerant flow divider.

（冷凍装置の冷凍回路の構成）
先ず図１は、同冷媒分流器が適用される空気調和機等一般的な冷凍装置の冷凍回路の構成を示している。 (Configuration of refrigeration circuit of refrigeration equipment)
First, FIG. 1 shows a configuration of a refrigeration circuit of a general refrigeration apparatus such as an air conditioner to which the refrigerant distributor is applied.

図１において、符号１は圧縮機であり、この圧縮機１に対し、４方切換弁２を介して、室外熱交換器３、減圧装置４、分流器５、室内熱交換器６及び分岐管７を、それぞれ図示のように環状に連結して冷凍サイクルを形成している。   In FIG. 1, reference numeral 1 denotes a compressor. An outdoor heat exchanger 3, a pressure reducing device 4, a flow divider 5, an indoor heat exchanger 6, and a branch pipe are connected to the compressor 1 through a four-way switching valve 2. 7 are connected in an annular shape as shown in the figure to form a refrigeration cycle.

さらに上記冷凍サイクルのうち、上記分流器５と室内熱交換器６とは複数本の分流管８ａ〜８ｋよりなる分流部８を介して連通させ、また、上記室内熱交換器６と分岐管７とは複数本の合流管９ａ〜９ｋよりなる合流部９を介して連通させている。   Further, in the refrigeration cycle, the flow divider 5 and the indoor heat exchanger 6 are communicated with each other via a flow dividing portion 8 including a plurality of flow dividing tubes 8a to 8k, and the indoor heat exchanger 6 and the branch tube 7 are communicated. Are communicated with each other through a merging portion 9 including a plurality of merging pipes 9a to 9k.

（分流器５部分の構成）
上記分流器５は、例えば図２に示すように、上下方向に長い等径円筒状の分流器本体５ａの上面部５ｃを球面状に絞り加工することによって一定の圧力に耐えるように外方に突出した球面とし、この球面状の上面部５ｃの略全面に、例えば図３に示すように、上記複数本の分流管８ａ〜８ｋの先端側を挿入するための複数の円形の分流管挿通穴１１，１１・・・を周方向および放射方向に均等に配置して形成している（前述の図９にに示した従来例のように同一円周上に整列させるのではなく）。そして、これら複数の分流管挿通穴１１，１１・・・の各々に対して、上記分流器本体５ａの軸心（長手方向中心軸）に対して、各分流管８ａ〜８ｋ各々の軸心（長手方向中心軸）が所定の傾斜角度になる状態で（この傾斜角度は後述するように挿入された穴１１の位置と治具２２によって決められる先端側位置との関係で決まる）、その先端を挿入し、後述する所定の位置決め治具２２（図５の（ｄ）参照）を介して、例えば図４に示すように、それら各分流管８ａ〜８ｋの先端が所定のピッチで同一円周上に並ぶように配置固定している。 (Configuration of the shunt 5 part)
For example, as shown in FIG. 2, the flow divider 5 is formed outwardly so as to withstand a certain pressure by drawing a spherical upper surface portion 5c of a constant-flow cylindrical main body 5a that is long in the vertical direction. As shown in FIG. 3, for example, as shown in FIG. 3, a plurality of circular branch pipe insertion holes for inserting the distal ends of the plurality of branch pipes 8a to 8k are formed on the spherical upper surface 5c. 11, 11... Are evenly arranged in the circumferential direction and the radial direction (instead of being aligned on the same circumference as in the conventional example shown in FIG. 9). .. For each of the plurality of flow dividing tube insertion holes 11, 11... With respect to the axial center (longitudinal central axis) of the flow dividing main body 5a. In a state where the longitudinal central axis) is at a predetermined inclination angle (this inclination angle is determined by the relationship between the position of the inserted hole 11 and the position of the tip end determined by the jig 22 as described later), 4 and inserted through a predetermined positioning jig 22 (see FIG. 5D), which will be described later, for example, as shown in FIG. 4, the tips of the respective branch pipes 8a to 8k are on the same circumference at a predetermined pitch. Are fixed so that they line up.

そして、この実施の形態の場合、上記分流器本体５ａの上面部５ｃに対して、上記各分流管８ａ〜８ｋをろう付けするための、従来のようなビーディング部は設けられていない。   In the case of this embodiment, a conventional beading portion for brazing each of the flow dividing tubes 8a to 8k to the upper surface portion 5c of the flow divider main body 5a is not provided.

一方、同分流器本体５ａの下端部は、図２に示すように、漏斗構造となっており、冷媒供給管１０が嵌合連結される小径の冷媒供給管接続部５ｂと該冷媒供給管接続部５ｂよりも次第に大径となって次第に内径が拡大される冷媒流入口部５ｄとからなっている。そして、上記冷媒供給管接続部５ｂに上記冷媒供給管１０が接続された状態では、図示のように冷媒供給管１０内の冷媒供給通路と上記冷媒流入口部５ｄの上流端（小径部）とは、同一の内径で連続している。   On the other hand, the lower end portion of the flow divider main body 5a has a funnel structure as shown in FIG. 2, and a small-diameter refrigerant supply pipe connecting portion 5b to which the refrigerant supply pipe 10 is fitted and connected, and the refrigerant supply pipe connection. The refrigerant inlet portion 5d has a diameter that is gradually larger than that of the portion 5b, and the inner diameter is gradually increased. In the state where the refrigerant supply pipe 10 is connected to the refrigerant supply pipe connecting portion 5b, the refrigerant supply passage in the refrigerant supply pipe 10 and the upstream end (small diameter portion) of the refrigerant inlet portion 5d as shown in the figure. Are continuous with the same inner diameter.

以上のように、この実施の形態では、上下方向に延びる筒体状の分流器本体５ａと、該分流器本体５ａの下端側に設けられた冷媒流入口部５ｄと、上記分流器本体５ａの球面状の上面部５ｃに設けられた複数の分流管挿通穴１１，１１・・・と、該複数の分流管挿通穴１１，１１・・・に挿通された複数本の分流管８ａ〜８ｋとからなり、上記冷媒流入口部５ｄから流入した冷媒を上記複数本の分流管８ａ〜８ｋを介して複数の冷媒通路に分配する冷媒分流器５において、上記分流器本体５の上面部５ｃに設けられた複数の分流管挿通穴１１，１１・・・は、同一円周上以外のレイアウトで配置されている一方、同複数の分流管挿通穴１１，１１・・・を介して分流器本体５ａの内部に挿入された複数本の分流管８ａ〜８ｋの先端は、同一円周上に配置固定されている。   As described above, in this embodiment, the cylindrical flow divider main body 5a extending in the vertical direction, the refrigerant inlet portion 5d provided on the lower end side of the flow divider main body 5a, and the flow divider main body 5a A plurality of branch pipe insertion holes 11, 11... Provided in the spherical upper surface portion 5c, and a plurality of branch pipes 8a to 8k inserted into the plurality of branch pipe insertion holes 11, 11. In the refrigerant flow divider 5 that distributes the refrigerant flowing from the refrigerant inlet portion 5d to the plurality of refrigerant passages via the plurality of flow dividing pipes 8a to 8k, the refrigerant flow divider 5 is provided on the upper surface portion 5c of the flow divider main body 5. The plurality of divided flow pipe insertion holes 11, 11... Are arranged in a layout other than on the same circumference, while the plurality of flow dividing pipe insertion holes 11, 11. The tips of the plurality of flow-dividing tubes 8a to 8k inserted inside the same circle It is arranged fixed to the upper.

したがって、このような構成によれば、分流器本体上面部５ｃの分流管挿通穴１１，１１・・・の配置状態如何に拘わらず、分流管８ａ〜８ｋの先端側開口部が同一円周上に配設されるので、分流器本体５ａ上面部５ｃの分流管挿通穴１１，１１・・・の配置が自由になり、分流すべきパス数が多くなっても、分流器本体５ａの直径を大きくしなくても済む。   Therefore, according to such a configuration, regardless of the arrangement state of the flow dividing pipe insertion holes 11, 11... In the flow divider main body upper surface portion 5c, the distal end side openings of the flow dividing pipes 8a to 8k are on the same circumference. Are freely arranged, and even if the number of paths to be diverted increases, the diameter of the diverter body 5a can be reduced. You don't have to make it bigger.

したがって、パス数が多い場合にも、偏流を生じさせることなく、分流器本体５ａのコンパクト化が可能となる。   Therefore, even when the number of passes is large, the shunt main body 5a can be made compact without causing drift.

（製造方法）
以上のような構成の冷媒分流器５は、例えば図５の（ａ）〜（ｅ）のような製造工程を経て製造される。 (Production method)
The refrigerant distributor 5 having the above-described configuration is manufactured through manufacturing processes such as (a) to (e) of FIG.

（ａ） 第１工程
図５（ａ）のように、等径円筒状の銅管５０を所定の長さに切断する。 (A) 1st process As shown to Fig.5 (a), the equal diameter cylindrical copper tube 50 is cut | disconnected to predetermined length.

（ｂ） 第２工程
上記所定の長さに切断された銅管５０の上端側を、図５（ｂ）のように、球面状に絞り加工して、その上面部５ｃが球面部となった分流器本体５ａを形成する。 (B) Second Step The upper end side of the copper tube 50 cut to the predetermined length is drawn into a spherical shape as shown in FIG. 5B, and the upper surface portion 5c becomes a spherical portion. A shunt main body 5a is formed.

（ｃ） 第３工程
球面状となった分流器本体５ａの上面部５ｃの全面に、図５（ｃ）に示すように、分流器本体５ａの内側から複数本のポンチ部２１ａ，２１ａ・・・を有するポンチ２１を使用して、図４のような周方向および放射方向に均等に点在する複数の分流管挿通穴１１，１１・・・をあける。 (C) Third step As shown in FIG. 5 (c), a plurality of punch portions 21a, 21a,... Are formed on the entire surface of the upper surface portion 5c of the shunt main body 5a having a spherical shape from the inner side of the shunt main body 5a. A plurality of flow-dividing pipe insertion holes 11, 11... Are evenly scattered in the circumferential direction and the radial direction as shown in FIG.

（ｄ） 第４工程
上面部５ｃに複数の分流管挿通穴１１，１１・・・が形成された分流器本体５ａの内部に、上部平坦面に複数本の分流管８，８・・・（図１〜図４の８ａ〜８ｋ）を同一円周方向に位置決め（配列）するための環状の位置決め溝２２ａを有する位置決め治具２２を挿入固定する一方、上記複数の分流管挿通穴１１，１１・・・を介して複数本の分流管８，８・・・（図１〜図４の８ａ〜８ｋ）を挿入し、図５（ｄ）に示すように、それらの先端を位置決め治具２２上面の位置決め溝２２ａ内に挿入することによって、それら各分流管８，８・・・（図１〜図４の８ａ〜８ｋ）の先端側開口位置が前述の図４に示すような同一円周上に所定の間隔で並設されるように挿入深さ、挿入角度を固定し、同固定状態で分流管挿通穴１１，１１・・・部分のろう付けを行う。 (D) Fourth step A plurality of flow-dividing tubes 8, 8... On the upper flat surface inside the flow-divider main body 5a in which a plurality of flow-dividing tube insertion holes 11, 11,. While inserting and fixing a positioning jig 22 having an annular positioning groove 22a for positioning (arranging) 8a to 8k) in FIGS. 1 to 4 in the same circumferential direction, the plurality of branch pipe insertion holes 11, 11 Are inserted through a plurality of flow-dividing tubes 8, 8... (8a to 8k in FIGS. 1 to 4), and as shown in FIG. When inserted into the positioning groove 22a on the upper surface, the opening positions on the front end side of the respective flow-dividing tubes 8, 8... (8a to 8k in FIGS. 1 to 4) have the same circumference as shown in FIG. The insertion depth and the insertion angle are fixed so that they are juxtaposed at predetermined intervals, and the diversion pipe insertion hole 1 is fixed in the same fixed state. , Carry out the brazing of 11 ... part.

これにより、従来のようなビーディング部を設けることなく、分流管８，８・・・（図１〜図４の８ａ〜８ｋ）を分流器本体５ａに対して正確に位置決めした状態で、確実に接続固定することができる。   As a result, without providing a beading portion as in the prior art, the flow-dividing tubes 8, 8... (8a to 8k in FIGS. 1 to 4) are accurately positioned with respect to the flow distributor body 5a. Can be fixed to the connection.

上記位置決め治具２２の位置決め用の環状の溝２２ａは、例えば図６および図７に示すように、上方側が広く、下方側が狭い摺鉢形状となっていて、挿入される複数本の分流管８，８・・・（図１〜図４の８ａ〜８ｋ）の先端がスムーズにガイドされるようになっている。   For example, as shown in FIGS. 6 and 7, the annular groove 22a for positioning of the positioning jig 22 has a squirrel-shaped shape that is wide on the upper side and narrow on the lower side. , 8... (8a to 8k in FIGS. 1 to 4) are smoothly guided.

なお、この位置決め用の環状の溝２２ａは、例えば複数の摺鉢形状の穴（平面円形のＶ溝）を同一円周方向に配置して個別に設けるようにしてもよい。   The annular groove 22a for positioning may be provided individually by arranging, for example, a plurality of bowl-shaped holes (planar circular V-grooves) in the same circumferential direction.

（ｅ） 第５工程
上記のようにして、上面部５ｃに複数本の分流管８，８・・・（８ａ〜８ｋ）が接続された分流器本体５ａの下端部を、図５（ｅ）に示すように漏斗形状に絞り加工して、冷媒供給管接続部５ｂおよび冷媒流入口部５ｄを形成する。 (E) Fifth Step As described above, the lower end portion of the current divider main body 5a in which the plurality of flow dividing tubes 8, 8,... (8a to 8k) are connected to the upper surface portion 5c is shown in FIG. As shown in FIG. 3, the refrigerant supply pipe connecting portion 5b and the refrigerant inlet portion 5d are formed by drawing into a funnel shape.

（変形例）
次に図８は、上記本願発明の最良の実施の形態の一部の構成を変更した変形例に係る冷媒分流器の構成および製造方法を示している。 (Modification)
Next, FIG. 8 shows a configuration and a manufacturing method of a refrigerant flow divider according to a modification in which a configuration of a part of the best embodiment of the present invention is changed.

上記最良の実施の形態の構成では、上記筒状の分流器本体５ａの下端部の漏斗形状の冷媒流入口部５ｄを、分流器本体５ａと同一部材で絞り加工により一体成形することにより形成したが、この変形例では、例えば図８（ｅ）に示すように、同分流器本体５ａの下端部側の冷媒流入口部５ｄが、筒状の別部材２３を絞り加工することによって形成され、その後、最終工程で嵌合して一体に接合されるようにしたことを特徴としている。   In the configuration of the best mode, the funnel-shaped refrigerant inlet portion 5d at the lower end of the cylindrical flow distributor main body 5a is integrally formed by drawing with the same member as the flow divider main body 5a. However, in this modification, for example, as shown in FIG. 8 (e), the refrigerant inlet portion 5d on the lower end side of the flow divider main body 5a is formed by drawing a cylindrical separate member 23, After that, it is characterized in that it is fitted and integrally joined in the final process.

その他の構成および図８の（ａ）〜（ｄ）までの製造工程は、上述の図１〜図５（ａ）〜（ｄ）の場合と全く同様である。   The other configuration and the manufacturing steps from (a) to (d) in FIG. 8 are exactly the same as those in the above-described FIGS. 1 to 5 (a) to (d).

このような構成によっても、上記図１〜図５（ａ）〜（ｅ）の最良の実施の形態のものと同様の作用効果を得ることができる。   Even with such a configuration, it is possible to obtain the same operational effects as those of the best embodiment shown in FIGS. 1 to 5A to 5E.

また、図１〜図５（ａ）〜（ｅ）の構成との比較で言うと、この変形例の方が、冷媒流入口部５ｄの成形加工が容易である。   Further, in comparison with the configuration of FIGS. 1 to 5A to 5E, this modification is easier to mold the refrigerant inlet portion 5d.

本願発明の最良の実施の形態に係る冷媒分流器を採用して構成した冷凍装置の冷凍サイクル図である。1 is a refrigeration cycle diagram of a refrigeration apparatus configured by adopting a refrigerant flow divider according to a best embodiment of the present invention. 本願発明の最良の実施の形態に係る冷媒分流器の全体構造を示す縦断面図（図４のＢ−Ｂ）である。It is a longitudinal cross-sectional view (BB of FIG. 4) which shows the whole structure of the refrigerant | coolant flow splitter which concerns on best embodiment of this invention. 同冷媒分流器の要部の構成を示す平面図である。It is a top view which shows the structure of the principal part of the same refrigerant | coolant flow divider. 同冷媒分流器の要部の構成を示す水平断面図（図２のＡ−Ａ）である。It is a horizontal sectional view (AA of FIG. 2) which shows the structure of the principal part of the refrigerant | coolant flow divider. 同冷媒分流器の第１〜第５の製造工程（ａ）〜（ｅ）を示す縦断面図である。It is a longitudinal cross-sectional view which shows the 1st-5th manufacturing process (a)-(e) of the same refrigerant | coolant flow divider. 図５の第４の製造工程（ｄ）で使用される位置決め治具の構造を示す斜視図である。It is a perspective view which shows the structure of the positioning jig used at the 4th manufacturing process (d) of FIG. 図５の第４の製造工程（ｄ）で使用される位置決め治具の構造を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the positioning jig used at the 4th manufacturing process (d) of FIG. 同冷媒分流器の変形例による構成および第１〜第５の製造工程（ａ）〜（ｅ）を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure by the modification of the same refrigerant | coolant flow divider, and the 1st-5th manufacturing process (a)-(e). 従来の冷凍装置用冷媒分流器の要部の構成を示す平面図である。It is a top view which shows the structure of the principal part of the conventional refrigerant | coolant flow splitter for refrigeration apparatuses. 同冷媒分流器の要部の構成を示す底面図である。It is a bottom view which shows the structure of the principal part of the same refrigerant | coolant flow divider.

符号の説明Explanation of symbols

５は冷媒分流器、５ａは分流器本体、５ｂは冷媒供給管接続部、５ｃは分流器本体の上面部、５ｄは冷媒流入口、８は分流部、８ａ〜８ｋは分流部８の各分流管、１０は冷媒供給管、１１は分流管挿通穴、２２は位置決め治具、２２ａは位置決め溝である。   5 is a refrigerant flow divider, 5a is a flow divider main body, 5b is a refrigerant supply pipe connection portion, 5c is an upper surface portion of the flow divider main body, 5d is a refrigerant inlet, 8 is a diversion portion, and 8a to 8k are diversion portions of the diversion portion 8. Pipes 10 and 10 are refrigerant supply pipes, 11 is a branch pipe insertion hole, 22 is a positioning jig, and 22a is a positioning groove.

Claims (4)

上下方向に延びる筒体状の分流器本体（５ａ）と、該分流器本体（５ａ）の下端側に設けられた冷媒流入口（５ｄ）と、上記分流器本体（５ａ）の球面状の上面部（５ｃ）に設けられた複数の分流管挿通穴（１１），（１１）・・・と、該複数の分流管挿通穴（１１），（１１）・・・に挿通された複数本の分流管（８ａ）〜（８ｋ）とからなり、上記冷媒流入口（５ｄ）から流入した冷媒を上記複数本の分流管（８ａ）〜（８ｋ）を介して複数の冷媒通路に分配する冷媒分流器において、上記分流器本体（５ａ）の上面部（５ｃ）に設けられた複数の分流管挿通穴（１１），（１１）・・・は、同一円周上以外の所望のレイアウトで配置されている一方、同複数の分流管挿通穴（１１），（１１）・・・を介して分流器本体（５ａ）の内部に挿入された複数本の分流管（８ａ）〜（８ｋ）の先端は、同一円周上に配置されていることを特徴とする冷媒分流器。   A cylindrical flow distributor body (5a) extending in the vertical direction, a refrigerant inlet (5d) provided on the lower end side of the flow distributor body (5a), and a spherical upper surface of the flow distributor body (5a) A plurality of branch pipe insertion holes (11), (11), ... provided in the portion (5c), and a plurality of pipes inserted through the plurality of branch pipe insertion holes (11), (11), ... Refrigerant branch flow comprising the branch pipes (8a) to (8k) and distributing the refrigerant flowing from the refrigerant inlet (5d) to the plurality of refrigerant passages via the plurality of branch pipes (8a) to (8k). The plurality of flow dividing pipe insertion holes (11), (11),... Provided in the upper surface part (5c) of the flow divider main body (5a) are arranged in a desired layout other than on the same circumference. On the other hand, the inside of the shunt body (5a) through the plurality of shunt pipe insertion holes (11), (11). The tip of the distribution pipe of the inserted plurality of (8a) ~ (8k), the refrigerant flow divider, characterized in that it is arranged on the same circumference. 複数本の分流管（８ａ）〜（８ｋ）は、複数の分流管挿通穴（１１），（１１）・・・内に挿入された後、同一円周方向に設けられた位置決め溝（２２ａ）を有する位置決め治具（２２）により先端位置を同一円周上に位置決めされた状態で上記分流管挿通穴（１１），（１１）・・・への挿通部をろう付けされていることを特徴とする請求項１記載の冷媒分流器。   The plurality of flow dividing tubes (8a) to (8k) are inserted into the plurality of flow dividing tube insertion holes (11), (11), and then positioned in the same circumferential direction (22a). The insertion portions to the branch pipe insertion holes (11), (11), etc. are brazed in a state where the tip position is positioned on the same circumference by a positioning jig (22) having The refrigerant shunt according to claim 1. 分流器本体（５ａ）の下端側冷媒流入口部（５ｄ）が分流器本体（５ａ）と分流器本体（５ａ）と同一部材よりなり、漏斗形状に成形加工されていることを特徴とする請求項１又は２記載の冷媒分流器。   The lower end side refrigerant inlet (5d) of the flow divider main body (5a) is made of the same member as the flow divider main body (5a) and the flow divider main body (5a), and is formed into a funnel shape. Item 3. A refrigerant flow divider according to item 1 or 2. 分流器本体（５ａ）の下端側冷媒流入口部（５ｄ）が分流器本体（５ａ）とは別部材よりなり、漏斗形状に成形加工された後、接合により一体化されていることを特徴とする請求項１又は２記載の冷媒分流器。   The lower end side refrigerant inlet portion (5d) of the flow distributor body (5a) is made of a separate member from the flow distributor body (5a), and is formed into a funnel shape and then integrated by joining. The refrigerant shunt according to claim 1 or 2.
JP2005175068A 2005-06-15 2005-06-15 Refrigerant shunt Expired - Fee Related JP4483717B2 (en)

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