JP2007071256A

JP2007071256A - Pipe connector

Info

Publication number: JP2007071256A
Application number: JP2005256818A
Authority: JP
Inventors: Takayuki Kume; 孝幸久米; Makoto Obata; 誠小畑
Original assignee: ALPEX KK; Calsonic Kansei Corp
Current assignee: ALPEX KK; Marelli Corp
Priority date: 2005-09-05
Filing date: 2005-09-05
Publication date: 2007-03-22

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipe connector capable of narrowing an interval between adjacent pipe connection parts. <P>SOLUTION: This pipe connector 60 is provided with a connector body 61 and a cylindrical member 62 attached and fixed to the connector body 61. The connector body 61 is provided with a plate-like base part 63, a first passage 65 passing through in the direction of plate thickness of the base part 63, the first cylindrical pipe connection part 67 protruding from a peripheral fringe at an opening end of the first passage 65 of the base part 63, and a mounting hole 71 formed by passing through in the direction of plate thickness of the base part 63 and attaching and fixing the cylindrical member 62 at a position adjacent to the first passage 65. The cylindrical member 62 is constituted as a second passage in which hollow part 75 in its inside passes through in the direction of plate thickness of the base part 63, and a part 79 protruding from the base part 63 toward the same side as the first pipe connection part 67 is constituted as the second pipe connection part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、熱交換器の入口および出口を構成するとともに配管部材を接続するための配管コネクタに関する。 The present invention relates to a piping connector for connecting an inlet and outlet of a heat exchanger and connecting piping members.

この種の配管コネクタには、例えば特許文献１などに開示されるものがある。図１０はこの種の配管コネクタを示す図である。図１０に示すように、配管コネクタ１０１は、板状のベース部１０３と、ベース部１０３の板厚方向に貫通形成された２つの通路１０５、１０７と、配管部材が取り付けられる側の面において各通路１０５、１０７の開口端周縁から突設された筒状の配管接続部１０６、１０８と、を備える。一方の通路１０５の配管接続部１０６に、入口側の配管部材が接続されることで、該一方の通路が熱交換器に熱媒を流入させる熱交換器入口として構成される。また他方の通路１０７の配管接続部１０８に入口側の配管が接続されることで、該他方の通路１０７が熱交換器から熱媒を導出させる熱交換器出口として構成される。
特開２００３−２９４３８９号公報 One example of this type of piping connector is disclosed in Patent Document 1 or the like. FIG. 10 is a view showing this type of piping connector. As shown in FIG. 10, the pipe connector 101 includes a plate-like base portion 103, two passages 105 and 107 formed through the base portion 103 in the plate thickness direction, and a surface to which a pipe member is attached. And tubular pipe connecting portions 106 and 108 projecting from the peripheral edges of the opening ends of the passages 105 and 107. By connecting a pipe member on the inlet side to the pipe connection portion 106 of one passage 105, the one passage is configured as a heat exchanger inlet through which a heat medium flows into the heat exchanger. In addition, the pipe on the inlet side is connected to the pipe connection portion 108 of the other passage 107, so that the other passage 107 is configured as a heat exchanger outlet for leading the heat medium from the heat exchanger.
JP 2003-294389 A

この種の配管コネクタは、鍛造などにより大まかな製品形状に加工された原形ブロックに対して、エンドミルなどの切削加工具により、通路および配管接続部を削り出すことで製作される。そのため、２つの配管接続部１０６、１０８の間の間隔Ｄ１は、切削工具が入り込めるだけの間隔が必要である。つまり、両配管接続部１０６、１０８の間の間隔Ｄ１を近接させるには制限がある。 This type of piping connector is manufactured by cutting out the passage and the pipe connecting portion with a cutting tool such as an end mill from an original block processed into a rough product shape by forging or the like. For this reason, the distance D1 between the two pipe connecting portions 106 and 108 needs to be enough to allow the cutting tool to enter. In other words, there is a limit in bringing the distance D1 between the pipe connection portions 106 and 108 close to each other.

本発明は上記点に鑑みてなされたもので、隣接する配管接続部同士の間隔をより狭くできる配管コネクタの提供を図る。 This invention is made | formed in view of the said point, and provides the piping connector which can narrow the space | interval of adjacent piping connection parts more.

請求項１に記載の発明は、熱交換器の入口および出口を構成するとともに配管部材を接続する配管コネクタであって、コネクタ本体と、前記コネクタ本体に取付固定される筒状部材と、を備え、前記コネクタ本体は、板状のベース部と、前記ベース部の板厚方向に貫通する第１の通路と、前記ベース部のうち前記第１の通路の開口端周縁から突出する筒状の第１の配管接続部と、前記第１の通路に隣接する位置において前記ベース部の板厚方向に貫通形成され且つ前記筒状部材が取付固定される取付孔と、を備え、前記筒状部材は、その内部の中空部が前記ベース部の板厚方向に貫通する第２の通路として構成されるとともに、前記第１の配管接続部と同じ側に向けて前記ベース部から突出する部分が第２の配管接続部として構成されることを特徴とするものである。 The invention according to claim 1 is a piping connector that configures an inlet and an outlet of a heat exchanger and connects a piping member, and includes a connector main body and a cylindrical member that is attached and fixed to the connector main body. The connector main body includes a plate-like base portion, a first passage penetrating in the plate thickness direction of the base portion, and a cylindrical first portion protruding from the opening end periphery of the first passage of the base portion. 1 pipe connection portion, and a mounting hole that is formed through the base portion in the plate thickness direction at a position adjacent to the first passage and to which the cylindrical member is mounted and fixed. The hollow portion in the inside is configured as a second passage penetrating in the plate thickness direction of the base portion, and the portion protruding from the base portion toward the same side as the first pipe connection portion is the second. Configured as a pipe connection It is an feature.

そのため、第１の配管接続部と第２の配管接続部とに、それぞれ入口側の配管または出口側の配管を接続することで、第１の通路と第２の通路とがそれぞれ熱交換器入口または熱交換器出口となる。 Therefore, by connecting a pipe on the inlet side or a pipe on the outlet side to the first pipe connecting portion and the second pipe connecting portion, respectively, the first passage and the second passage are respectively connected to the heat exchanger inlet. Or it becomes a heat exchanger exit.

請求項２に記載の発明は、請求項１に記載の配管コネクタであって、前記第１の通路は、一方の開口端側と他方の開口端側とでその軸心が互いに偏心していることを特徴とするものである。 Invention of Claim 2 is a piping connector of Claim 1, Comprising: The said 1st channel | path is that the axial center is mutually eccentric on one opening end side and the other opening end side. It is characterized by.

請求項３に記載の発明は、請求項１または２に記載の配管コネクタであって、前記筒状部材は、前記取付孔への取付方向基端側から見て基端側の部分よりも外径方向に突出するフランジ部を有することを特徴とするものである。 Invention of Claim 3 is a piping connector of Claim 1 or 2, Comprising: The said cylindrical member is outside the part of the base end side seeing from the attachment direction base end side to the said attachment hole. It has a flange portion protruding in the radial direction.

請求項１の発明によれば、一方の配管接続部をベース部と一体形成し、他方の配管接続部をベース部と別体に設けたことで、切削加工具のサイズや形状に規制されることなく、２つの配管接続部を近接させることができる。しかも２つの配管接続部の双方をベース部と別体に設けた構造に比べて部品点数が少なくなり、製造コストを抑えることができる。 According to the first aspect of the present invention, one pipe connection portion is integrally formed with the base portion, and the other pipe connection portion is provided separately from the base portion, so that the size and shape of the cutting tool are regulated. The two pipe connection portions can be brought close to each other without any problem. In addition, the number of parts is reduced compared to a structure in which both of the two pipe connection portions are provided separately from the base portion, and the manufacturing cost can be reduced.

請求項２の発明によれば、製造コストをさらに抑えることができる。すなわち、仮に、コネクタ本体と別体に設けられた筒状部材において、一方（配管部材を取り付ける側）の開口端の中心と他方（熱交換器本体を取り付ける側）の開口端の中心とがオフセットしていると、筒状部材をコネクタ本体に固定する際にこの筒状部材の取付角度を管理する必要があり、その分、製造コストが高くなってしまうからである。 According to the invention of claim 2, the manufacturing cost can be further suppressed. That is, in the tubular member provided separately from the connector body, the center of the opening end of one (side to which the piping member is attached) and the center of the opening end of the other (side to which the heat exchanger body is attached) are offset. This is because, when the cylindrical member is fixed to the connector main body, it is necessary to manage the mounting angle of the cylindrical member, and the manufacturing cost increases accordingly.

請求項３の発明によれば、フランジ部より取付方向基端側の部分を治具により支持し、そしてフランジ部を治具の先端で押しつけながら、筒状部材をコネクタ本体の取付孔に取付ることができる。そのため、筒状部材を治具によって容易にコネクタ本体に取り付けることができる。 According to the invention of claim 3, the tubular member is attached to the attachment hole of the connector body while the portion on the proximal end side in the attachment direction from the flange portion is supported by the jig and the flange portion is pressed by the tip of the jig. be able to. Therefore, the cylindrical member can be easily attached to the connector main body with a jig.

以下、本発明の一実施形態を図面に基づいて説明する。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

図１は本発明の一実施形態の配管コネクタを備える熱交換器の斜視図、図２は図１の熱交換器の正面図、図３は図２中ＩＩＩ−ＩＩＩ線の沿う断面図、図４ａは同熱交換器のチューブの分解斜視図、図４ｂは同熱交換器のチューブの組立図、図５は図２中ＩＶ−ＩＶ線に沿う断面図、図６は本実施形態の配管コネクタの製造工程を説明するための断面図、図７ａは図６中の配管コネクタのコネクタ本体の正面図、図７ｂはコネクタ本体の側面図、図８ａは図６中の配管コネクタの筒状部材の正面図、図８ｂは側面図である。 1 is a perspective view of a heat exchanger provided with a pipe connector according to an embodiment of the present invention, FIG. 2 is a front view of the heat exchanger of FIG. 1, and FIG. 3 is a sectional view taken along line III-III in FIG. 4a is an exploded perspective view of the tube of the heat exchanger, FIG. 4b is an assembly view of the tube of the heat exchanger, FIG. 5 is a sectional view taken along line IV-IV in FIG. 2, and FIG. FIG. 7a is a front view of the connector main body of the pipe connector in FIG. 6, FIG. 7b is a side view of the connector main body, and FIG. 8a is a tubular member of the pipe connector in FIG. A front view and FIG. 8b are side views.

本実施形態の熱交換器は、冷却用熱交換器として利用される蒸発器である。なお、本発明にあっては熱交換器は蒸発器に限られるものではないし、またその利用分野は車両用空調装置に限られずその他の分野で利用できる。 The heat exchanger of this embodiment is an evaporator used as a heat exchanger for cooling. In the present invention, the heat exchanger is not limited to the evaporator, and the application field is not limited to the vehicle air conditioner and can be used in other fields.

蒸発器１は、図１、図２に示すように、熱交換器本体１ａと、熱交換器本体１ａに接続される且つ入口側の配管部材および出口側の配管部材が接続されることで熱交換器入口７および熱交換器出口８を構成する配管コネクタ６１と、を備えている。 As shown in FIG. 1 and FIG. 2, the evaporator 1 is connected to the heat exchanger main body 1 a, the inlet-side piping member and the outlet-side piping member connected to the heat exchanger main body 1 a, thereby generating heat. And a pipe connector 61 that constitutes the exchanger inlet 7 and the heat exchanger outlet 8.

熱交換器本体１ａは、図１〜３に示すように冷媒の入口側の熱交換部１０と冷媒の出口側の熱交換部２０とが通風方向Ｙにならんだ構造である。入口側熱交換部１０は、上部タンク１１および下部タンク１２と、これら両タンク１１、１２を連通する複数の熱交換通路３１と、を備える。また、出口側熱交換部２０も同様に上部タンク２１および下部タンク２２と、これら両タンク２１、２２を連通する複数の熱交換通路３１と、を備える。なお、熱交換通路３１は後述するチューブ３０の内部の通路３１によって形成され、タンク１１、１２、２１、２２は後述するチューブ３０の長手方向両端側の筒状のタンク部３２によって形成される。 The heat exchanger main body 1a has a structure in which the heat exchange section 10 on the refrigerant inlet side and the heat exchange section 20 on the refrigerant outlet side are aligned in the ventilation direction Y as shown in FIGS. The inlet-side heat exchanging unit 10 includes an upper tank 11 and a lower tank 12 and a plurality of heat exchange passages 31 that connect both the tanks 11 and 12. Similarly, the outlet-side heat exchange unit 20 includes an upper tank 21 and a lower tank 22 and a plurality of heat exchange passages 31 that communicate with both the tanks 21 and 22. The heat exchange passage 31 is formed by a passage 31 inside a tube 30 described later, and the tanks 11, 12, 21, and 22 are formed by cylindrical tank portions 32 on both ends in the longitudinal direction of the tube 30 described later.

上述の蒸発器１の製造方法は、垂直方向に向けて配置したチューブ３０をアウターフィン５３を介在させつつ水平方向Ｘに向けて複数多段に積層し、最外端の金属製のサイドプレート５４、補強プレート５５、５７および配管コネクタ６０等を付設して所定の蒸発器の形状とし、この状態で一体にろう付けすることで製造される（図１〜図３参照）。 The above-described method for manufacturing the evaporator 1 includes stacking the tubes 30 arranged in the vertical direction in multiple stages in the horizontal direction X with the outer fins 53 interposed therebetween, and forming the outermost metal side plate 54, Reinforcing plates 55 and 57, piping connector 60, and the like are attached to form a predetermined evaporator shape, and are manufactured by brazing together in this state (see FIGS. 1 to 3).

使用されるチューブ３０は、図４に示すように、一対の金属板４０、４０をその間にインナーフィン５１、５１を挟み込んだ状態で最中合わせにして形成される。金属板４０は、中央の仕切部４０ａを隔てて長手方向に延びる２本の凹部４１と、この凹部４１の長手方向両端から開口し且つ板厚方向に突出する筒状のタンク部４２と、を備えている。対向する一対の金属板４０、４０を重ね合わせると、金属板４０の凹部４１以外の部分同士（つまり周縁の接合部４０ｂ同士および中央の仕切部４０ａ同士）が接合されて、これによりチューブ３０が形成される。これによりチューブ３０内部には、中央部の仕切部３０ａを隔てて冷媒を流す２本の熱交換通路３１、３１が形成され、各熱交換通路３１の両端部には積層方向Ｘ外方に向けて筒状に突出するタンク部３２、３２が形成される。 As shown in FIG. 4, the tube 30 to be used is formed by aligning a pair of metal plates 40 and 40 in the middle with the inner fins 51 and 51 sandwiched therebetween. The metal plate 40 includes two concave portions 41 extending in the longitudinal direction across the central partition portion 40a, and a cylindrical tank portion 42 that opens from both longitudinal ends of the concave portion 41 and protrudes in the plate thickness direction. I have. When the pair of opposing metal plates 40, 40 are overlapped, the portions other than the concave portion 41 of the metal plate 40 (that is, the peripheral joint portions 40b and the central partition portion 40a) are joined, thereby the tube 30. It is formed. As a result, two heat exchange passages 31, 31 through which the refrigerant flows through the central partition 30 a are formed inside the tube 30, and both ends of each heat exchange passage 31 are directed outward in the stacking direction X. Thus, tank portions 32, 32 projecting in a cylindrical shape are formed.

冷媒が蒸発器入口７に導入されると、該冷媒は、入口側熱交換部１０を流通した後、図示せぬ連通路を通じて出口側熱交換部２０に導入され、出口側熱交換部２０を流通したのち、出口側熱交換部２０の上部タンク２１を介して最終的に蒸発器出口８から蒸発器１外に導出される。 When the refrigerant is introduced into the evaporator inlet 7, the refrigerant flows through the inlet side heat exchange unit 10, and then is introduced into the outlet side heat exchange unit 20 through a communication path (not shown). After the circulation, it is finally led out of the evaporator 1 from the evaporator outlet 8 through the upper tank 21 of the outlet side heat exchange section 20.

次に、配管コネクタ６０について説明する。 Next, the piping connector 60 will be described.

配管コネクタ６０は、図１、２に示すように、蒸発器本体１ａの左上端に接続され、蒸発器入口７および蒸発器出口８を構成する。この配管コネクタ６０は、図５〜８に示すように、コネクタ本体６１と、筒状部材６２と、を備える。 As shown in FIGS. 1 and 2, the pipe connector 60 is connected to the upper left end of the evaporator body 1 a and constitutes an evaporator inlet 7 and an evaporator outlet 8. As shown in FIGS. 5 to 8, the pipe connector 60 includes a connector main body 61 and a cylindrical member 62.

コネクタ本体６１は、板状のベース部６３と、ベース部６３の板厚方向に貫通し蒸発器入口７または蒸発器出口８の一方を構成する（この例では蒸発器入口７を構成する）第１の通路６５と、ベース部６３の配管部材を取り付ける側の面６３ａにおいて前記第１の通路６５の開口端周縁から突設された筒状の第１の配管接続部６７と、ベース部６３の熱交換器本体に接続される側の面６３ｂにおいて前記第１の通路６５の開口端周縁から突設された筒状の熱交換器本体接続部６９と、第１の通路６５に隣接する位置においてベース部６３の板厚方向に貫通形成された取付孔７１と、を備えている。 The connector main body 61 penetrates in the plate thickness direction of the plate-like base portion 63 and the base portion 63 to constitute one of the evaporator inlet 7 or the evaporator outlet 8 (in this example, the evaporator inlet 7 is constituted). 1, a tubular first pipe connection portion 67 projecting from the peripheral edge of the opening end of the first passage 65 on the surface 63 a of the base portion 63 on the side where the piping member is attached, and the base portion 63. At the surface 63 b on the side connected to the heat exchanger body, at a position adjacent to the tubular heat exchanger body connection portion 69 projecting from the opening edge periphery of the first passage 65 and the first passage 65. And an attachment hole 71 penetratingly formed in the thickness direction of the base portion 63.

配管接続部６７の外周面には、シール部材としてのＯリングＳを装着するための円環状の取付溝６７ｍが形成されている。 An annular mounting groove 67m for mounting an O-ring S as a seal member is formed on the outer peripheral surface of the pipe connecting portion 67.

取付孔７１は、筒状部材６２の取付方向Ｘ基端側に形成された大径部７１ａと、取付方向Ｘ先端側に形成された小径部７１ｂと、を備えている。大径部７１ａと小径部７１ｂとの境界には、軸方向とは直交する段差面７１ｃを有しており、この段差面７１ｃに筒状部材６２のフランジ部７７が当接して位置決めされるようになっている。つまり、段差面７１ｃはストッパ面である。 The attachment hole 71 includes a large-diameter portion 71a formed on the attachment direction X proximal end side of the cylindrical member 62 and a small-diameter portion 71b formed on the attachment direction X distal end side. The boundary between the large diameter portion 71a and the small diameter portion 71b has a step surface 71c perpendicular to the axial direction, and the flange portion 77 of the cylindrical member 62 is in contact with the step surface 71c so as to be positioned. It has become. That is, the step surface 71c is a stopper surface.

筒状部材６２は、コネクタ本体６１の取付孔７１に圧入されることでコネクタ本体６１に取付固定され、図６ｂに示す如くコネクタ本体６１に固定された状態でベース部６３の板厚方向両側に突出する。 The cylindrical member 62 is fixedly attached to the connector main body 61 by being press-fitted into the mounting hole 71 of the connector main body 61, and is fixed to the connector main body 61 as shown in FIG. Protruding.

筒状部材６２の内部には長手方向に貫通する中空部７５が形成されている。この筒状部材６２の中空部７５は、第２の通路としての構成される。第２の通路７５は、熱交換器入口７または熱交換器出口８の他方を構成する（この例では熱交換器出口８を構成する）。筒状部材６２の長手方向中間付近には、外径方向に突出するフランジ部７７が形成されている。筒状部材６２のうち、フランジ部７７よりも配管部材が接続される側の部分７９は、配管部材が接続される第２の配管接続部として構成される。また、筒状部材６２のうち、フランジ部７７よりも熱交換器本体１ａが接続される側の部分は、熱交換器本体１ａと接続される熱交換器本体接続部８１として構成される。熱交換器本体接続部８１よりも配管接続部７９が肉厚に構成されており、配管接続部７９の外周面には、シール部材としてのＯリングＳを装着するたの円環状の取付溝７９ｍが形成されている。なお、フランジ部７７は筒状部材６２の挿入方向Ｘ基端側から見て配管接続部７９よりも径方向に突出しており、これにより、図６（ａ）に示す如く治具９１により筒状部材６２の配管接続部７９を支持した状態で、図６（ｂ）に示す如く治具９１の先端により筒状部材６２のフランジ部７７を押しつけるようにして、筒状部材６２をコネクタ本体６１の取付孔７１に圧入固定できるようになっている。 A hollow portion 75 penetrating in the longitudinal direction is formed inside the cylindrical member 62. The hollow portion 75 of the cylindrical member 62 is configured as a second passage. The second passage 75 constitutes the other of the heat exchanger inlet 7 and the heat exchanger outlet 8 (in this example, the heat exchanger outlet 8). Near the middle in the longitudinal direction of the tubular member 62, a flange portion 77 protruding in the outer diameter direction is formed. A portion 79 of the tubular member 62 on the side where the piping member is connected to the flange portion 77 is configured as a second piping connection portion to which the piping member is connected. Moreover, the part of the cylindrical member 62 on the side where the heat exchanger main body 1a is connected with respect to the flange portion 77 is configured as a heat exchanger main body connecting portion 81 connected to the heat exchanger main body 1a. The pipe connection portion 79 is thicker than the heat exchanger main body connection portion 81, and an annular mounting groove 79m for mounting an O-ring S as a seal member on the outer peripheral surface of the pipe connection portion 79. Is formed. The flange portion 77 protrudes in the radial direction from the pipe connection portion 79 when viewed from the insertion direction X base end side of the cylindrical member 62, and as a result, as shown in FIG. With the pipe connecting portion 79 of the member 62 supported, the flange portion 77 of the cylindrical member 62 is pressed by the tip of the jig 91 as shown in FIG. The mounting hole 71 can be press-fitted and fixed.

筒状部材６２の内部の中空部７５は、直線状に形成されていているが、コネクタ本体６１の内部の第１の通路６５は、一方の開口端側（この例では蒸発器側）の切削孔６５ａと他方の開口端側（この例では配管部材側）の切削孔６５ｂとでその中心が偏心（オフセット）されている。 The hollow portion 75 inside the cylindrical member 62 is formed in a straight line, but the first passage 65 inside the connector body 61 is cut on one opening end side (in this example, the evaporator side). The center of the hole 65a is eccentric (offset) between the other opening end side (the piping member side in this example) and the cutting hole 65b.

以上のように構成されるコネクタ本体６１も筒状部材６２もいずれも鍛造によって大まかに製品形状に加工された原形ブロックを、切削加工することで製作されるようになっている。 Both the connector main body 61 and the cylindrical member 62 configured as described above are manufactured by cutting an original block that has been roughly processed into a product shape by forging.

「効果」
次に、第１実施形態の効果をまとめる。 "effect"
Next, the effects of the first embodiment will be summarized.

（１）本実施形態の配管コネクタ６０は、コネクタ本体６１と、コネクタ本体６１に取付固定される筒状部材６２と、を備え、コネクタ本体６１は、板状のベース部６３と、ベース部６３の板厚方向に貫通する第１の通路６５と、ベース部６３の第１の通路６５の開口端周縁から突出する筒状の第１の配管接続部６７と、第１の通路６５に隣接する位置においてベース部６３の板厚方向に貫通形成され且つ前記筒状部材６２を取付固定する取付孔７１と、を備え、前記筒状部材６２は、その内部の中空部７５がベース部６３の板厚方向に貫通する第２の通路として構成されるとともに、第１の配管接続部６７と同じ側に向けてベース部６３から突出する部分７９が第２の配管接続部として構成される。 (1) The piping connector 60 of the present embodiment includes a connector main body 61 and a cylindrical member 62 attached and fixed to the connector main body 61. The connector main body 61 includes a plate-like base portion 63 and a base portion 63. Adjacent to the first passage 65, a tubular first pipe connection portion 67 projecting from the opening edge periphery of the first passage 65 of the base portion 63, and the first passage 65. And a mounting hole 71 that is formed through the base portion 63 in the thickness direction of the base portion 63 and attaches and fixes the cylindrical member 62. The cylindrical member 62 has a hollow portion 75 inside the base portion 63. A portion 79 protruding from the base portion 63 toward the same side as the first pipe connecting portion 67 is configured as a second pipe connecting portion while being configured as a second passage penetrating in the thickness direction.

言い換えると、本実施形態の配管コネクタ６０は、配管部材と接続される配管接続部６７、７９の一方（この例では第１の配管接続部６７）を、ベース部６３と一体に設け、他方（この例では第２の配管接続部７９）をベース部６３と別体に設けたものである。そのため、切削加工具のサイズや形状に規制されることなく、２つの配管接続部６７、７９の間の間隔Ｄ２を近接させることができる。しかも配管接続部６７、７９の双方をベース部６３と別体に設けた構造に比べて部品点数が少なく、製造コストを抑えることができる。 In other words, the pipe connector 60 of the present embodiment is provided with one of the pipe connection parts 67 and 79 connected to the pipe member (in this example, the first pipe connection part 67) integrally with the base part 63, and the other ( In this example, the second pipe connecting portion 79) is provided separately from the base portion 63. Therefore, the distance D2 between the two pipe connecting portions 67 and 79 can be brought close to each other without being restricted by the size or shape of the cutting tool. In addition, the number of parts is small compared to the structure in which both the pipe connection portions 67 and 79 are provided separately from the base portion 63, and the manufacturing cost can be suppressed.

（２）また本実施形態にあっては、筒状部材６２が、取付孔７１への取付方向Ｘ基端側から見て基端部７９よりも外径方向に突出するフランジ部７７を有する。そのため、筒状部材６２を、治具９１によって容易にコネクタ本体６１に取り付けることができる。 (2) In the present embodiment, the cylindrical member 62 has the flange portion 77 that protrudes in the outer diameter direction from the base end portion 79 when viewed from the base end side in the mounting direction X to the mounting hole 71. Therefore, the cylindrical member 62 can be easily attached to the connector main body 61 by the jig 91.

（３）また本実施形態にあっては、コネクタ本体６１の第１の通路６５は、一方の開口端側６５ａの中心と他方の開口端側６５ｂの中心とがオフセットしている。そのため、製造コストをさらに抑えることができる。すなわち、仮に、コネクタ本体と別体に設けられた筒状部材６２において、一方の開口端の中心と他方の開口端の中心とがオフセットしているとすると、筒状部材６２をコネクタ本体６１に固定する際にこの筒状部材６２の取付角度を管理する必要が生じ、製造コストが高くなってしまうからである。 (3) In the present embodiment, the center of one opening end side 65a and the center of the other opening end side 65b of the first passage 65 of the connector main body 61 are offset. Therefore, the manufacturing cost can be further suppressed. That is, if the cylindrical member 62 provided separately from the connector main body is assumed that the center of one opening end is offset from the center of the other opening end, the cylindrical member 62 is connected to the connector main body 61. This is because it is necessary to manage the mounting angle of the cylindrical member 62 at the time of fixing, which increases the manufacturing cost.

（４）本実施形態の配管コネクタ６０は、筒状部材６２がブロック状の部材であるため、筒状部材６２をパイプで構成した場合に比べ、例えばＯリングなどのシール部材を装着するための取付溝７９ｍなどを加工しても、脆弱部分ができずに、十分な強度を得ることができる。そのため、信頼度の高い配管コネクタ６０を提供できる。 (4) Since the tubular member 62 is a block-like member, the piping connector 60 of the present embodiment is for mounting a seal member such as an O-ring, for example, as compared to the case where the tubular member 62 is configured by a pipe. Even if the mounting groove 79m or the like is processed, a weak portion is not formed and sufficient strength can be obtained. Therefore, the highly reliable piping connector 60 can be provided.

なお、配管コネクタ６０には、配管が直接接続される場合もあるし、例えば図１０に示すように膨張弁９３などのその他の部材を介して入口側配管９５および出口側配管９７が間接的に接続される場合もある。この場合は、膨張弁９３も本発明における配管部材に含まれるものとする。 In addition, piping may be directly connected to the piping connector 60, for example, as shown in FIG. 10, the inlet side piping 95 and the outlet side piping 97 are indirectly connected via other members, such as the expansion valve 93. Sometimes connected. In this case, the expansion valve 93 is also included in the piping member in the present invention.

本発明は上述の実施形態のみに限定解釈されるものではなく本発明の技術的思想の範囲内で適宜変更可能である。 The present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope of the technical idea of the present invention.

図１は本発明の一実施形態の配管コネクタを備える熱交換器の斜視図。FIG. 1 is a perspective view of a heat exchanger including a pipe connector according to an embodiment of the present invention. 図２は図１の熱交換器の正面図。FIG. 2 is a front view of the heat exchanger of FIG. 図３は図２中ＩＩＩ−ＩＩＩ線の沿う断面図。3 is a cross-sectional view taken along line III-III in FIG. 図４ａは同熱交換器のチューブの分解斜視図、図４ｂは同熱交換器のチューブの組立図。4A is an exploded perspective view of the tube of the heat exchanger, and FIG. 4B is an assembly view of the tube of the heat exchanger. 図５は図２中ＩＶ−ＩＶ線に沿う断面図。5 is a cross-sectional view taken along line IV-IV in FIG. 図６は本実施形態の配管コネクタの製造工程を説明するための断面図。FIG. 6 is a cross-sectional view for explaining a manufacturing process of the piping connector of the present embodiment. 図７ａは図６中の配管コネクタのコネクタ本体の正面図、図７ｂはコネクタ本体の側面図。7A is a front view of the connector main body of the pipe connector in FIG. 6, and FIG. 7B is a side view of the connector main body. 図８ａは図６中の配管コネクタの筒状部材の正面図、図８ｂは側面図。8A is a front view of the tubular member of the pipe connector in FIG. 6, and FIG. 8B is a side view. 図９は同熱交換器の配管コネクタの接続構造の一例を示す概略図である。。FIG. 9 is a schematic view showing an example of the connection structure of the pipe connector of the heat exchanger. . 図１０は従来の配管コネクタの一例を示す断面図。FIG. 10 is a cross-sectional view showing an example of a conventional piping connector.

符号の説明Explanation of symbols

１…蒸発器（熱交換器）
７…蒸発器入口（熱交換器入口）
８…蒸発器出口（熱交換器出口）
６０…配管コネクタ
６１…コネクタ本体
６２…筒状部材
６３…ベース部
６５…第１の通路
６５ａ…切削孔（一方の開口端側）
６５ｂ…切削孔（他方の開口端側）
６７…第１の配管接続部
７１…取付孔
７５…中空部（第２の通路）
７７…フランジ部
７９…第２の配管接続部
９１…治具
９３…膨張弁（配管部材）
９５…入口側配管（配管部材）
９７…出口側配管（配管部材）

1 ... Evaporator (heat exchanger)
7. Evaporator inlet (heat exchanger inlet)
8. Evaporator outlet (heat exchanger outlet)
DESCRIPTION OF SYMBOLS 60 ... Piping connector 61 ... Connector main body 62 ... Cylindrical member 63 ... Base part 65 ... 1st channel | path 65a ... Cutting hole (one opening end side)
65b ... Cutting hole (the other opening end side)
67 ... 1st piping connection part 71 ... Mounting hole 75 ... Hollow part (2nd channel | path)
77 ... Flange part 79 ... Second pipe connection part 91 ... Jig 93 ... Expansion valve (pipe member)
95 ... Inlet side piping (piping members)
97 ... Outlet side piping (piping members)

Claims

熱交換器の入口（７）および出口（８）を構成するとともに配管部材を接続する配管コネクタ（６０）であって、
コネクタ本体（６１）と、前記コネクタ本体（６１）に取付固定される筒状部材（６２）と、を備え、
前記コネクタ本体（６１）は、板状のベース部（６３）と、前記ベース部（６３）の板厚方向に貫通する第１の通路（６５）と、前記ベース部（６３）のうち前記第１の通路（６５）の開口端周縁から突出する筒状の第１の配管接続部（６７）と、前記第１の通路（６５）に隣接する位置において前記ベース部（６３）の板厚方向に貫通形成され且つ前記筒状部材（６２）が取付固定される取付孔（７１）と、を備え、
前記筒状部材（６２）は、その内部の中空部（７５）が前記ベース部（６３）の板厚方向に貫通する第２の通路として構成されるとともに、前記第１の配管接続部（６７）と同じ側に向けて前記ベース部（６３）から突出する部分（７９）が第２の配管接続部として構成されることを特徴とする配管コネクタ（６０）。 A piping connector (60) that constitutes the inlet (7) and outlet (8) of the heat exchanger and connects the piping members,
A connector body (61), and a cylindrical member (62) fixed to the connector body (61),
The connector body (61) includes a plate-like base portion (63), a first passage (65) penetrating in the thickness direction of the base portion (63), and the first of the base portions (63). A cylindrical first pipe connection portion (67) protruding from the opening edge periphery of one passage (65), and a thickness direction of the base portion (63) at a position adjacent to the first passage (65) And a mounting hole (71) through which the cylindrical member (62) is mounted and fixed,
The tubular member (62) is configured as a second passage through which the hollow portion (75) inside penetrates in the plate thickness direction of the base portion (63), and the first pipe connection portion (67). The pipe connector (60) is characterized in that a portion (79) projecting from the base portion (63) toward the same side as the second pipe connection portion is configured as a second pipe connection portion.

請求項１に記載の配管コネクタ（６０）であって、
前記第１の通路（６５）は、一方の開口端側（６５ａ）と他方の開口端側（６５ｂ）とでその軸心が互いに偏心していることを特徴とする配管コネクタ（６０）。 A piping connector (60) according to claim 1,
The pipe connector (60) characterized in that the first passage (65) has eccentric axes on one opening end side (65a) and the other opening end side (65b).

請求項１または２に記載の配管コネクタ（６０）であって、
前記筒状部材（６２）は、前記取付孔（７１）への取付方向（Ｘ）基端側から見て基端側の部分（７９）よりも外径方向に突出するフランジ部（７７）を有することを特徴とする配管コネクタ。

A pipe connector (60) according to claim 1 or 2,
The cylindrical member (62) has a flange portion (77) projecting in the outer diameter direction from the base end side portion (79) when viewed from the base end side in the mounting direction (X) to the mounting hole (71). A piping connector comprising a piping connector.