JP2002031435A - Air conditioner - Google Patents

Air conditioner

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Publication number
JP2002031435A
JP2002031435A JP2000218246A JP2000218246A JP2002031435A JP 2002031435 A JP2002031435 A JP 2002031435A JP 2000218246 A JP2000218246 A JP 2000218246A JP 2000218246 A JP2000218246 A JP 2000218246A JP 2002031435 A JP2002031435 A JP 2002031435A
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capillary tube
passage
air conditioner
heat exchanger
plurality
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JP2000218246A
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Japanese (ja)
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Sadamichi Niimura
定路 新村
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Fujitsu General Ltd
株式会社富士通ゼネラル
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Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner, which eliminates generation of a refrigerant sound by connecting a bypass passage, constituted of branch passages equipped with an auxiliary balance capillary tube respectively and a connecting passage connecting the branch passages to one passage, between the outlet pipe of an outdoor side heat exchanger upon cooling operation, which consists of a plurality of paths equipped with a balance capillary tube, and a capillary tube. SOLUTION: In the air conditioner, in which the outdoor side heat exchanger 3 consisting of a compressor 1, a four-way valve 2 and a plurality of paths 3a equipped with balance capillary tubes 3c in outlet port pipes 3b at cooling operation, the capillary tube 4 and an indoor side heat exchanger 5 are connected sequentially through a pipeline for circulating non-azeotropic refrigerant (R407C), the bypass passage constituted of the branch passages 3e, equipped respectively with the auxiliary balance capillary tube 3d and the connecting passage 3g connecting the branch passages to one passage, is connected between the outlet port pipes of the plurality of paths and the capillary tube.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、空気調和機に係わり、より詳細には、バランスキャピラリチューブを備えた複数のパスからなる冷房運転時における室外側熱交換器の出口管と、キャピラリチューブとの間に、補助バランスキャピラリチューブを夫々備えた分岐路と、同分岐路を一つに連結する連結路とからなるバイパス路を接続して冷媒音が発生しないようにした構造に関する。 BACKGROUND OF THE INVENTION The present invention relates to an air conditioner, and more particularly, the outlet pipe of the outdoor heat exchanger during the cooling operation comprising a plurality of paths having a balanced capillary tube, the capillary tube between the auxiliary balance capillary tube each comprising a branch path, to a structure of connecting passage and a bypass passage connected to the refrigerant noise consisting of was prevented from being generated for coupling to one of the same branch path.

【0002】 [0002]

【従来の技術】従来の空気調和機は、例えば図2(A) BACKGROUND OF THE INVENTION Conventional air conditioner, for example, FIG. 2 (A)
で示す冷凍サイクル図および図2(B)で示す要部拡大図のように、圧縮機1と、四方弁2と、冷房運転時における出口管3bにバランスキャピラリチューブ3cを備えた複数のパス3aからなる室外側熱交換器3と、キャピラリチューブ4と、室内側熱交換器5とが順次配管接続され、非共沸混合冷媒(R407C)を循環してなる構成であった。 Multiple paths 3a with as enlarged view showing refrigeration cycle diagram and FIG. 2 (B), the compressor 1, a four-way valve 2, the balance capillary tube 3c to the outlet pipe 3b at the time of cooling operation shown in an outdoor heat exchanger 3 consisting of a capillary tube 4, are sequentially connecting pipes and the indoor heat exchanger 5 was circulated formed by constituting a non-azeotropic mixed refrigerant (R407C).

【0003】しかしながら、前記非共沸混合冷媒(R4 However, the non-azeotropic mixed refrigerant (R4
07C)は、R32、R125およびR124aの沸点が互いに異なる三種類の冷媒を混合させたものであって、前記室外側熱交換器3の複数のパス3aを通過したのちに気相と液相とが混じった冷媒となることから、同冷媒をバランスよく前記複数のパス3aを通過させるために設けられた前記バランスキャピラリチューブ3cにおいて、冷媒の通過に伴って大きな冷媒音が発生してしまうという問題を有していた。 07C) includes a R32, R125 and be one having a boiling point of R124a is obtained by mixing three different types of refrigerant from each other, gas and liquid phases in after passing through a plurality of paths 3a of the chamber outer heat exchanger 3 since the the mixed refrigerant, a problem that in the balanced capillary tube 3c provided for passing balanced manner the plurality of paths 3a and the coolant, a large refrigerant noise with the passage of the refrigerant occurs the had.

【0004】 [0004]

【発明が解決しようとする課題】本発明においては、上記の問題点に鑑み、バランスキャピラリチューブを備えた複数のパスからなる冷房運転時における室外側熱交換器の出口管と、キャピラリチューブとの間に、補助バランスキャピラリチューブを夫々備えた分岐路と、同分岐路を一つに連結する連結路とからなるバイパス路を接続して冷媒音が発生しないようにした空気調和機を提供することを目的とする。 In THE INVENTION It is an object of the present invention has been made in view of the above problems, and an outlet pipe of the outdoor heat exchanger during the cooling operation comprising a plurality of paths having a balanced capillary tube, the capillary tube during, to provide a supplementary balanced capillary tube each comprise a branch passage, an air conditioner bypass passage connected to the refrigerant noise comprising a connecting road is not to occur for coupling to one said branch path With the goal.

【0005】 [0005]

【課題を解決するための手段】本発明は、上記課題を解決するため、圧縮機と、四方弁と、冷房運転時における出口管にバランスキャピラリチューブを備えた複数のパスからなる室外側熱交換器と、キャピラリチューブと、 Means for Solving the Problems The present invention for solving the above problems, a compressor, a four-way valve, an outdoor heat exchanger comprising a plurality of paths having a balanced capillary tube to the outlet tube during the cooling operation and the vessel, and the capillary tube,
室内側熱交換器とが順次配管接続され、非共沸混合冷媒(R407C)を循環してなる空気調和機において、前記複数のパスの出口管と前記キャピラリチューブとの間に、補助バランスキャピラリチューブを夫々備えた分岐路と、同分岐路を一つに連結する連結路とからなるバイパス路を接続した構成となっている。 Is indoor sequentially pipe connecting the heat exchanger, the air conditioner comprising circulating the non-azeotropic mixed refrigerant (R407C), between the capillary tube and the outlet tube of the plurality of paths, the auxiliary balance capillary tube the has a respectively provided with branch path, a configuration in which a bypass passage consisting of a coupling passage which connects to one of the same branch path.

【0006】また、前記バランスキャピラリチューブが、前記出口管の気相冷媒を循環するように夫々接続される一方、前記分岐路が、前記複数のパスの出口管の液相冷媒を導くように夫々接続された構成となっている。 Further, the balance capillary tube, while being respectively connected to circulate a vapor-phase refrigerant of the outlet pipe, the branch passage, respectively so as to guide the liquid-phase refrigerant outlet pipe of the plurality of paths s It has become connected to each other.

【0007】また、前記バランスキャピラリチューブを通過した気相冷媒を、前記室外側熱交換器へ再度流通させるようにした構成となっている。 Further, the vapor-phase refrigerant passing through the balance capillary tube has a configuration so as to flow again into the chamber outer heat exchanger.

【0008】また、前記バランスキャピラリチューブを通過した気相冷媒を、前記室外側熱交換器の下部へ流通させるようにした構成となっている。 Further, the vapor-phase refrigerant passing through the balance capillary tube has a configuration so as to flow into the lower portion of the chamber outer heat exchanger.

【0009】更に、前記連結路に、前記キャピラリチューブ側に向けて開となる逆止弁を設けた構成となっている。 Furthermore, the connection path has a configuration in which a check valve is opened toward the capillary tube side.

【0010】 [0010]

【発明の実施の形態】以下、本発明の実施の形態を、添付図面に基づいた実施例として説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the embodiments of the present invention will be described as an example with reference to the accompanying drawings. 図1は本発明による空気調和機の説明図で、(A)は冷凍サイクル図、(B)は冷凍サイクルの要部拡大図、(C)は(B)で示すA部の拡大図である。 Figure 1 is a diagram of an air conditioner according to the present invention, is an enlarged view of the A portion shown by (A) is a refrigeration cycle diagram, (B) is a fragmentary enlarged view of the refrigeration cycle, the (C) (B) .

【0011】図において、1は圧縮機、2は四方弁、3 [0011] In FIG, 1 is a compressor, 2 a four-way valve, 3
は複数のパス3aからなり、同複数のパス3aの冷房運転時における出口管3bにバランスキャピラリチューブ3cを設けた室外側熱交換器、4はキャピラリチューブ、5は室内側熱交換器で、これらは順次配管接続されて冷凍サイクルを構成し、冷房運転時には実線の矢印で示す冷媒回路を、暖房運転時には破線の矢印で示す冷媒回路を夫々形成している。 Comprises a plurality of paths 3a, an outdoor heat exchanger provided with a balanced capillary tube 3c to the outlet pipe 3b at the time of cooling operation of the plurality of paths 3a, 4 is a capillary tube, 5 in the indoor side heat exchanger, these constitutes a refrigerating cycle by sequentially connecting pipes, at the time of cooling operation of the refrigerant circuit shown by the solid arrows, during heating operation and the refrigerant circuit is formed respectively indicated by the dashed arrows.

【0012】上記に説明した基本構成において、前記バランスキャピラリチューブ3cを備えた複数のパス3aからなる冷房運転時における室外側熱交換器3の出口管3b [0012] In the basic construction described above, the outlet pipe 3b of the outdoor side heat exchanger 3 in the cooling operation comprising a plurality of paths 3a with the balance capillary tube 3c
と、前記キャピラリチューブ4との間に、補助バランスキャピラリチューブ3dを夫々備えた分岐路3eと、同分岐路3eを一つに連結する連結路3gとからなるバイパス路を接続して冷媒音が発生しないようにした構造について以下に説明する。 If, between the capillary tube 4, the auxiliary balance capillary tube 3d branch passage 3e to each equipped with a bypass passage connected to the refrigerant noise consisting of a connecting passage 3g for connecting to one of the same branch passage 3e is for the structure so as not to occur will be described below.

【0013】前記複数のパス3aの冷房運転時における出口管3bと前記キャピラリチューブ4との間に、図1 [0013] Between the outlet pipe 3b and the capillary tube 4 at the time of cooling operation of the plurality of paths 3a, FIG. 1
(A)および図1(B)で示すように、補助バランスキャピラリチューブ3dを前記バランスキャピラリチューブ (A) and as shown in FIG. 1 (B), the said balance capillary tube supplementary balanced capillary tube 3d
3cに対して夫々並列に備えた分岐路3eと、同分岐路3eを一つに連結し、前記キャピラリチューブ4側に向けて開となる逆止弁6を備えた連結路3gとからなるバイパス路を接続して、図1(C)で示すように、前記バランスキャピラリチューブ3cが、前記出口管3bの気相冷媒を循環するように夫々接続される一方、前記分岐路3eが、前記複数のパス3aの出口管3bの液相冷媒を導くように夫々接続された構成となっており、これによって、図1(C) A branch passage 3e provided in each parallel to 3c, a bypass composed of the same branch passage 3e is connected to one coupling path 3g having a check valve 6 which is opened toward the capillary tube 4 side connect the road, as shown in FIG. 1 (C), the said balance capillary tube 3c is, while being respectively connected to circulate a vapor-phase refrigerant of the outlet pipe 3b, the branch passage 3e is, the plurality It has become a path 3a configurations which are respectively connected to direct liquid-phase refrigerant outlet pipe 3b, the result, FIG. 1 (C)
の矢印aで示すように前記出口管3bに流出してきた気液混合冷媒は、重力の影響により液相冷媒が気相冷媒に対して下側を流れるため、液相冷媒は矢印bで示すように、下位の前記分岐路3eに設けられた前記補助バランスキャピラリチューブ3dを、気相冷媒は矢印cで示すように、上位の前記分岐路3eに設けられた前記バランスキャピラリチューブ3cを夫々通過するようになるので、上記に説明した従来技術における問題点のように、前記バランスキャピラリチューブ3cにおいて、冷媒の通過に伴って大きな冷媒音が発生してしまうということがなくなる。 The gas-liquid mixed refrigerant that has flowed out to the outlet pipe 3b as indicated by arrow a in, for liquid-phase refrigerant by the effect of gravity flows under side of the gas-phase refrigerant, the liquid-phase refrigerant as shown by the arrow b on, the auxiliary balance capillary tube 3d provided on the lower of the branch passage 3e, the gas-phase refrigerant as shown by the arrow c, respectively passing through the balance capillary tube 3c provided on the branch passage 3e of the upper since manner, as problems in the conventional techniques described above, in the balanced capillary tube 3c, thereby preventing that a large refrigerant noise with the passage of the refrigerant occurs.

【0014】また、前記バランスキャピラリチューブ3c Further, the balance capillary tube 3c
を通過した気相冷媒を、図1(A)および図1(B)で示すように、前記室外側熱交換器3の下部回路3fへ再度流通させるようにしたことにより、前記気相冷媒を前記室外側熱交換器3に再度流して熱交換させることにより、熱交換効率を向上させることができる。 The gas-phase refrigerant passing through the, as shown in FIGS. 1 (A) and 1 (B), by which is adapted to circulate again to the lower circuit 3f of the chamber outer heat exchanger 3, the gas-phase refrigerant by heat exchange by flowing the chamber again outside heat exchanger 3, thereby improving the heat exchange efficiency.

【0015】更に、前記連結路3gに、前記キャピラリチューブ4側に向けて開となる前記逆止弁6を設けたことにより、低外気温おける暖房運転時に、冷媒のすべてを前記下部回路3fへ流通させてこれをホットバイパスとし、前記室外側熱交換器3に結氷が生じないように効果的に防止できるようになる。 Furthermore, the connecting passage 3g, by providing the check valve 6 which is opened toward the capillary tube 4 side, during heating operation definitive low outside air temperature, all the refrigerant into the lower circuit 3f This was hot bypass is circulated, frost on the outdoor side heat exchanger 3 will be able to effectively prevent not to occur.

【0016】以上の構成により、図1(A)乃至図1 [0016] With the above arrangement, FIG. 1 (A) through FIG. 1
(C)で示すように、前記複数のパス3aの冷房運転時における出口管3bと前記キャピラリチューブ4との間に、 As shown by (C), between the outlet pipe 3b and the capillary tube 4 at the time of cooling operation of the plurality of paths 3a,
前記補助バランスキャピラリチューブ3dを夫々備えた分岐路3eと、同分岐路3eを一つに連結し、前記キャピラリチューブ4側に向けて開となる逆止弁6を備えた連結路 The auxiliary balancing capillary branch passage 3e of the tube 3d respectively provided with, and connected to one of the branch passage 3e, coupling passage having a check valve 6 which is opened toward the capillary tube 4 side
3gとからなるバイパス路を接続して、前記バランスキャピラリチューブ3cが、前記出口管3bの気相冷媒を循環するように夫々接続される一方、前記分岐路3eが、前記複数のパス3aの出口管3bの液相冷媒を導くように夫々接続されたので、前記出口管3bに流出してきた矢印aで示す気液混合冷媒は、重力の影響により液相冷媒が気相冷媒に対して下側を流れるため、矢印bで示す液相冷媒は、 And a bypass passage consisting of 3g, the balance capillary tube 3c is, while being respectively connected to circulate a vapor-phase refrigerant of the outlet pipe 3b, the branch passage 3e is, the outlet of said plurality of paths 3a since respectively connected to direct liquid-phase refrigerant pipe 3b, the gas-liquid mixed refrigerant shown by an arrow a which has flowed into the outlet pipe 3b is lower liquid phase refrigerant with respect to the gas-phase refrigerant by the effect of gravity to flow a liquid refrigerant shown by the arrow b, the
下位の前記分岐路3eに設けられた前記補助バランスキャピラリチューブ3dを、矢印cで示す気相冷媒は、上位の前記分岐路3eに設けられた前記バランスキャピラリチューブ3cを夫々通過するようになるので、上記に説明した従来技術の問題点のように、前記バランスキャピラリチューブ3cにおいて、冷媒の通過に伴って大きな冷媒音が発生してしまうということがないようにした空気調和機となる。 The auxiliary balance capillary tube 3d provided on the lower of the branch passage 3e, gas-phase refrigerant indicated by an arrow c, because the balance capillary tube 3c provided on the branch passage 3e of the upper so that each pass as the problems of the prior art described above, in the balanced capillary tube 3c, the air conditioner large refrigerant noise is so is not that occur with the passage of the refrigerant.

【0017】 [0017]

【発明の効果】以上のように本発明によると、バランスキャピラリチューブを備えた複数のパスからなる冷房運転時における室外側熱交換器の出口管と、キャピラリチューブとの間に、補助バランスキャピラリチューブを夫々備えた分岐路と、同分岐路を一つに連結する連結路とからなるバイパス路を接続して冷媒音が発生しないようにした空気調和機となる。 According to the present invention as described above, according to the present invention, the outlet pipe of the outdoor heat exchanger during the cooling operation comprising a plurality of paths having a balanced capillary tube, between the capillary tube, the auxiliary balance capillary tube and each includes a branch path, the air conditioner connecting passage and a bypass passage connected to the refrigerant noise consisting of was prevented from being generated for coupling to one of the same branch path.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明による空気調和機の説明図で、(A)は冷凍サイクル図であり、(B)は冷凍サイクルの要部拡大図であり、(C)は(B)で示すA部の拡大図である。 [1] In illustration of the air conditioner according to the present invention, (A) is a refrigeration cycle diagram, (B) is an enlarged view of a refrigeration cycle, A part indicated by (C) is (B) it is an enlarged view of.

【図2】従来例による空気調和機の説明図で、(A)は冷凍サイクル図であり、(B)は冷凍サイクルの要部拡大図である。 [2] an explanatory view of an air conditioner according to the prior art, (A) is a refrigeration cycle diagram, (B) is an enlarged diagram of a refrigeration cycle.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 圧縮機 2 四方弁 3 室外側熱交換器 3a 複数のパス 3b 出口管 3c バランスキャピラリチューブ 3d 補助バランスキャピラリチューブ 3e 分岐路 3f 下部回路 3g 連結路 4 キャピラリチューブ 5 室内側熱交換器 6 逆止弁 1 compressor 2 four-way valve 3 outdoor heat exchanger 3a plurality of paths 3b outlet pipe 3c balanced capillary tube 3d auxiliary balanced capillary tubes 3e branch passage 3f lower circuit 3g connection path 4 the capillary tube 5 indoor heat exchanger 6 a check valve

Claims (5)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 圧縮機と、四方弁と、冷房運転時における出口管にバランスキャピラリチューブを備えた複数のパスからなる室外側熱交換器と、キャピラリチューブと、室内側熱交換器とが順次配管接続され、非共沸混合冷媒(R407C)を循環してなる空気調和機において、 前記複数のパスの出口管と前記キャピラリチューブとの間に、補助バランスキャピラリチューブを夫々備えた分岐路と、同分岐路を一つに連結する連結路とからなるバイパス路を接続してなることを特徴とする空気調和機。 And 1. A compressor, a four-way valve, the outdoor heat exchanger comprising a plurality of paths having a balanced capillary tube to the outlet tube during the cooling operation, and the capillary tube, sequentially with the indoor heat exchanger connected by piping, the air conditioner comprising circulating the non-azeotropic mixed refrigerant (R407C), between the capillary tube and the outlet tube of the plurality of paths, and the auxiliary balance capillary tube each comprising a branch path, an air conditioner characterized by comprising a bypass passage consisting of a coupling passage which connects to one of the same branch path.
  2. 【請求項2】 前記バランスキャピラリチューブが、前記出口管の気相冷媒を循環するように夫々接続される一方、前記分岐路が、前記複数のパスの出口管の液相冷媒を導くように夫々接続されてなることを特徴とする請求項1に記載の空気調和機。 Wherein said balance capillary tube, while being respectively connected to circulate a vapor-phase refrigerant of the outlet pipe, the branch passage, respectively so as to guide the liquid-phase refrigerant outlet pipe of the plurality of paths s the air conditioner according to claim 1, characterized by being connected.
  3. 【請求項3】 前記バランスキャピラリチューブを通過した気相冷媒を、前記室外側熱交換器へ再度流通させるようにしたことを特徴とする請求項1または請求項2に記載の空気調和機。 3. A gas-phase refrigerant passing through the balance capillary tube, an air conditioner according to claim 1 or claim 2, characterized in that so as to flow the chamber again into outer heat exchanger.
  4. 【請求項4】 前記バランスキャピラリチューブを通過した気相冷媒を、前記室外側熱交換器の下部へ流通させるようにしたことを特徴とする請求項3に記載の空気調和機。 4. The gas-phase refrigerant passing through the balance capillary tube, an air conditioner according to claim 3, characterized in that so as to flow into the lower portion of the chamber outer heat exchanger.
  5. 【請求項5】 前記連結路に、前記キャピラリチューブ側に向けて開となる逆止弁を設けてなることを特徴とする請求項1に記載の空気調和機。 To wherein said connecting passage, the air conditioner according to claim 1, characterized by comprising providing a check valve to be opened toward the capillary tube side.
JP2000218246A 2000-07-19 2000-07-19 Air conditioner Pending JP2002031435A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007034939A1 (en) * 2005-09-26 2007-03-29 Hara Tech Corporation Thermal converter for condensation and refrigeration system using the same
JP2011202875A (en) * 2010-03-25 2011-10-13 Hitachi Appliances Inc Air conditioner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007034939A1 (en) * 2005-09-26 2007-03-29 Hara Tech Corporation Thermal converter for condensation and refrigeration system using the same
US8746007B2 (en) 2005-09-26 2014-06-10 Takao Hara Heat converter for condensation and refrigeration system using the same
JP2011202875A (en) * 2010-03-25 2011-10-13 Hitachi Appliances Inc Air conditioner

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