JP2021085507A - Connecting structure of piping and valve device having the same - Google Patents

Connecting structure of piping and valve device having the same Download PDF

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JP2021085507A
JP2021085507A JP2019217055A JP2019217055A JP2021085507A JP 2021085507 A JP2021085507 A JP 2021085507A JP 2019217055 A JP2019217055 A JP 2019217055A JP 2019217055 A JP2019217055 A JP 2019217055A JP 2021085507 A JP2021085507 A JP 2021085507A
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pipe
connecting pipe
valve
valve body
port
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JP7370833B2 (en
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祐孝 宮寺
Yutaka Miyadera
祐孝 宮寺
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Saginomiya Seisakusho Inc
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Saginomiya Seisakusho Inc
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Abstract

To make a sealing member and a connecting pipe attachable and detachable by a simple structure, and to surely seal a clearance between an internal peripheral part of the sealing member and an external peripheral part of an end part of the connecting pipe without causing a gap, in a valve device.SOLUTION: An internal peripheral part of a connecting pipe 32 having a uniform outside diameter over an entire length is composed of a small-diameter part 32b extending from a position approximate to a first port 32P toward the other end of the connecting pipe 32 by a prescribed length, and a fitting large-diameter part 32a communicating with the small-diameter part 32b, formed in a position corresponding to the other end of the connecting pipe 32, and inserted with an end part of a piping pipe 50. Since the other end of the connecting pipe 32 is inserted into an internal peripheral part of a seal member 46 of a connecting joint 48, the internal peripheral part of the seal member 46 and an external peripheral part of an end part of the connecting pipe 32 are brought into a state that a clearance between them is surely sealed with a sufficient length along an axial line direction without causing a gap between them.SELECTED DRAWING: Figure 1

Description

本発明は、配管の接続構造、および、それを備える弁装置に関する。 The present invention relates to a pipe connection structure and a valve device including the same.

冷凍サイクルシステムにおいては、例えば、弁装置である配管接続用バルブが、室外ユニットと室内ユニットとの間に配される場合がある。そのような配管接続用バルブは、例えば、引用文献１に示されるように、室内ユニット側の配管と接続するための第１の接続部および室外ユニット側の配管と接続される第２の接続部を有するバルブ本体を備えている。そのバルブ本体の第２の接続部には、室外ユニット側の配管と第２の接続部とを接続するための接続パイプの一端部が、ろう付けにより予め接合されている（引用文献１における第２図参照）。その接続パイプにおける室外ユニット側の配管と接続される他端部は、ろう付け管継手の雌接合部としての大径部を有している。バルブ本体の第１の接続部は、フレヤナットにより室内ユニット側の配管に接続される。 In the refrigeration cycle system, for example, a valve for connecting pipes, which is a valve device, may be arranged between the outdoor unit and the indoor unit. Such a pipe connection valve is, for example, as shown in Reference 1, a first connection portion for connecting to the pipe on the indoor unit side and a second connection portion connected to the pipe on the outdoor unit side. It is equipped with a valve body having. One end of a connection pipe for connecting the piping on the outdoor unit side and the second connection portion is preliminarily joined to the second connection portion of the valve body by brazing (the first in Reference 1). See Fig. 2). The other end of the connecting pipe connected to the pipe on the outdoor unit side has a large diameter portion as a female joint of the brazed pipe joint. The first connection portion of the valve body is connected to the piping on the indoor unit side by a flare nut.

実開昭５７−２００８８６号公報Jitsukaisho 57-20886

上述のような室外ユニット側の配管が、ろう付けにより、バルブ本体の第２の接続部に接続された接続パイプの大径部に接続される以前の段階で、その接続パイプを介して配管接続用バルブのバルブ本体の気密試験、配管接続用バルブの冷媒ガス流量の検査等が実施される場合がある。このような場合、上述の接続パイプの大径部を所定の試験装置の接続部に取り外し可能に接続するために接続パイプの大径部の外周部および試験装置の接続部全体を着脱可能な封止部材で覆うことが必要とされる。 Before the piping on the outdoor unit side as described above is connected to the large diameter portion of the connection pipe connected to the second connection portion of the valve body by brazing, the piping is connected via the connection pipe. Airtightness test of the valve body of the valve for piping, inspection of the flow rate of refrigerant gas of the valve for connecting pipes, etc. may be carried out. In such a case, in order to removably connect the large diameter portion of the connection pipe described above to the connection portion of the predetermined test device, the outer peripheral portion of the large diameter portion of the connection pipe and the entire connection portion of the test device can be detachably sealed. It is necessary to cover it with a stop member.

しかしながら、封止部材で覆われる接続パイプの大径部の外周部は、隣接する接続パイプの小径部の外周部との間に段差があるので封止部材の内周部と接続パイプの小径部の外周部との間に隙間が形成され、その結果、封止部材と接続パイプとの間の確実な密封性が担保されない虞がある。そこで、封止部材と接続パイプとが簡単な構造により着脱可能であるとともに、封止部材と接続パイプとの間の確実な密封性が担保されることが要望される場合がある。 However, since the outer peripheral portion of the large-diameter portion of the connecting pipe covered with the sealing member has a step between the outer peripheral portion of the small-diameter portion of the adjacent connecting pipe, the inner peripheral portion of the sealing member and the small-diameter portion of the connecting pipe A gap is formed between the sealing member and the connecting pipe, and as a result, a reliable sealing property between the sealing member and the connecting pipe may not be ensured. Therefore, it may be required that the sealing member and the connecting pipe can be attached to and detached from each other by a simple structure, and that a reliable sealing property between the sealing member and the connecting pipe is ensured.

以上の問題点を考慮し、本発明は、配管の接続構造、および、それを備える弁装置であって、封止部材と接続パイプとが簡単な構造により着脱可能であるとともに、封止部材の内周部と接続パイプの端部の外周部との間を隙間なく確実に密封できる配管の接続構造、および、それを備える弁装置を提供することを目的とする。 In consideration of the above problems, the present invention is a pipe connection structure and a valve device provided with the same. The sealing member and the connecting pipe can be attached to and detached from each other by a simple structure, and the sealing member can be attached and detached. It is an object of the present invention to provide a pipe connection structure capable of reliably sealing between an inner peripheral portion and an outer peripheral portion of an end portion of a connecting pipe without a gap, and a valve device provided with the connection structure.

上述の目的を達成するために、本発明に係る配管の接続構造は、弁体収容部に一端が接続され、他端の内周部に配管用パイプに接続される一様な外径を全長にわたり有する接続用パイプを備え、接続用パイプの内周部は、小径部と、小径部に連通し接続用パイプの他端に対応した位置に形成され、配管用パイプの端部が挿入される嵌合用大径部と、からなることを特徴とする。 In order to achieve the above object, the pipe connection structure according to the present invention has a uniform outer diameter in which one end is connected to the valve body accommodating portion and the other end is connected to the pipe for piping. The inner peripheral portion of the connecting pipe is formed at a position corresponding to the small diameter portion and the other end of the connecting pipe communicating with the small diameter portion, and the end portion of the piping pipe is inserted. It is characterized by being composed of a large diameter portion for fitting.

また、本発明に係る弁装置は、第１の接続用パイプに接続される第１のポートと、第１の接続用パイプに対し略直交する第２の接続用パイプに接続される第２のポートとを有し、第１のポートおよび第２のポートに連通し、第２のポートに設けられた弁座の弁ポートを開閉制御する弁体を含んでなる弁体ユニットを移動可能に収容する弁体収容部を備える弁本体部と、弁体ユニットに、弁体の先端部と弁座の弁ポートの周縁との間を通過する流体の流量を調整するように、弁座の弁ポートを開閉制御する動作を行わせる駆動機構を作動させるステータコイルユニットを含んでなる電磁アクチュエータと、を備え、一様な外径を全長にわたり有する第１の接続用パイプおよび第２の接続用パイプの内周部は、小径部と、小径部に連通し第１および第２の接続用パイプの他端に対応した位置に形成され、配管用パイプの端部が挿入される嵌合用大径部と、からなることを特徴とする。 Further, the valve device according to the present invention has a second port connected to a first connecting pipe and a second connecting pipe connected to a second connecting pipe substantially orthogonal to the first connecting pipe. A valve body unit having a port, communicating with the first port and the second port, and including a valve body for opening and closing the valve port of the valve seat provided in the second port is movably accommodated. The valve port of the valve seat so as to adjust the flow rate of the fluid passing between the tip end portion of the valve body and the peripheral edge of the valve port of the valve seat in the valve body portion including the valve body accommodating portion and the valve body unit. A first connection pipe and a second connection pipe having a uniform outer diameter over the entire length, comprising an electromagnetic actuator including a stator coil unit for operating a drive mechanism for controlling the opening and closing of the pipe. The inner peripheral portion is formed at a position corresponding to the other end of the first and second connecting pipes communicating with the small diameter portion and the large diameter portion for fitting into which the end portion of the piping pipe is inserted. It is characterized by consisting of.

さらに、第１の接続用パイプおよび第２の接続用パイプは、それぞれ、第１の接続用パイプおよび第２の接続用パイプの他端の内周部における小径部と嵌合用大径部との境界部分に対し嵌合用大径部の開口端の方向に離隔した位置に、第１の接続用パイプおよび第２の接続用パイプの内側に***する突起部が、２箇所に形成されてもよい。嵌合用大径部に挿入された配管用パイプの端部が、突起部により位置決めされてもよい。 Further, the first connecting pipe and the second connecting pipe have a small diameter portion and a large diameter portion for fitting at the inner peripheral portion of the other end of the first connecting pipe and the second connecting pipe, respectively. Protrusions that rise inside the first connecting pipe and the second connecting pipe may be formed at two positions at positions separated from the boundary portion in the direction of the opening end of the large diameter portion for fitting. .. The end of the piping pipe inserted into the large diameter portion for fitting may be positioned by the protrusion.

本発明に係る配管の接続構造、および、それを備える弁装置によれば、一様な外径を全長にわたり有する接続用パイプは、他端の内周部に配管用パイプ、または、他端の外周部に接続用ジョイントのシール部材が選択的に接続され、接続用パイプの内周部が小径部と、小径部に連通し接続用パイプの他端に対応した位置に形成され、配管用パイプの端部が挿入される嵌合用大径部と、からなるので封止部材と接続パイプとが簡単な構造により着脱可能であるとともに、封止部材の内周部と接続パイプの端部の外周部との間を隙間なく確実に密封できる。 According to the pipe connection structure according to the present invention and the valve device provided with the pipe connection structure, the connection pipe having a uniform outer diameter over the entire length is a pipe for piping at the inner peripheral portion of the other end, or a pipe at the other end. The sealing member of the connecting joint is selectively connected to the outer peripheral portion, and the inner peripheral portion of the connecting pipe is formed at a position corresponding to the small diameter portion and the other end of the connecting pipe communicating with the small diameter portion. Since it is composed of a large-diameter fitting portion into which the end portion of the pipe is inserted, the sealing member and the connecting pipe can be attached and detached due to a simple structure, and the inner peripheral portion of the sealing member and the outer circumference of the end portion of the connecting pipe It can be securely sealed between the parts without any gaps.

（Ａ）は、本発明に係る配管の接続構造の第１実施例が適用された電動弁の構成を、接続用パイプとともに示す断面図であり、（Ｂ）は、（Ａ）における接続用パイプの一部を配管用パイプとともに拡大して示す部分断面図である。(A) is a cross-sectional view showing the configuration of an electric valve to which the first embodiment of the pipe connection structure according to the present invention is applied together with the connection pipe, and (B) is the connection pipe in (A). It is a partial cross-sectional view which shows a part of this together with a pipe for piping enlarged. （Ａ）は、図１（Ａ）に示される接続パイプの他端が接続用ジョイントに接続された状態を示す部分断面図であり、（Ｂ）は、参考例としての接続パイプの他端が接続用ジョイントに接続された状態を示す部分断面図である。(A) is a partial cross-sectional view showing a state in which the other end of the connecting pipe shown in FIG. 1 (A) is connected to the connecting joint, and (B) is a partial cross-sectional view showing a state in which the other end of the connecting pipe as a reference example is connected. It is a partial cross-sectional view which shows the state which is connected to the connection joint. （Ａ）は、本発明に係る配管の接続構造の第２実施例が適用された電動弁の構成を、接続用パイプとともに示す断面図であり、（Ｂ）は、（Ａ）における接続用パイプの一部を配管用パイプとともに拡大して示す部分断面図である。(A) is a cross-sectional view showing the configuration of an electric valve to which the second embodiment of the pipe connection structure according to the present invention is applied together with the connection pipe, and (B) is the connection pipe in (A). It is a partial cross-sectional view which shows a part of this together with a pipe for piping enlarged.

図１（A）は、本発明に係る配管の接続構造の第１実施例が適用された電動弁の構成を、接続用パイプとともに示す。 FIG. 1A shows a configuration of an electric valve to which the first embodiment of the pipe connection structure according to the present invention is applied, together with a connection pipe.

電動弁は、図１（A）に示されるように、円筒状のローターケース２０内に配され後述する弁体ユニットを駆動する弁駆動部と、ローターケース２０の端部に連結される弁本体連結部３０と、弁本体連結部３０の下端に結合され弁体２６の先端部で開閉される弁ポート３６Ｖａを有する弁座３６Ｖを備える弁本体部３６と、弁本体部３６内に配され弁座３６Ｖの弁ポート３６Ｖａを開閉する弁体２６を含んでなる弁体ユニットと、を含んで構成されている。 As shown in FIG. 1A, the electric valve is arranged in a cylindrical rotor case 20 and is connected to a valve drive unit for driving a valve body unit described later and a valve body connected to an end portion of the rotor case 20. A valve body 36 having a connecting portion 30, a valve seat 36V having a valve port 36V connected to the lower end of the valve body connecting portion 30 and opened and closed at the tip of the valve body 26, and a valve arranged in the valve body 36. It is configured to include a valve body unit including a valve body 26 for opening and closing the valve port 36V of the seat 36V.

弁駆動部は、後述する弁体ユニットを昇降動させる雄ねじ軸１４と、雄ねじ軸１４と嵌め合わされる雌ねじ１２ＦＭＳが形成された雌ねじ部１２Ｂを有し、弁本体連結部３０に固定され弁体ユニットを昇降動可能に案内する案内支持部１２と、雄ねじ軸１４のガイド軸部１４Ａに固定され回転可能に支持され着磁されたロータ１０と、ローターケース２０の外周部に配されロータ１０を回転させるステータコイル４０と、を主な要素として含んで構成されている。 The valve drive unit has a male screw shaft 14 for moving the valve body unit up and down, which will be described later, and a female screw portion 12B on which a female screw 12FMS fitted with the male screw shaft 14 is formed, and is fixed to the valve body connecting portion 30 to form a valve body unit. The guide support portion 12 that guides the rotor up and down, the rotor 10 that is fixed to the guide shaft portion 14A of the male screw shaft 14 and rotatably supported and magnetized, and the rotor 10 that is arranged on the outer peripheral portion of the rotor case 20 and rotates. The stator coil 40 is included as a main element.

案内支持部１２は、弁体ユニットの一部を構成する円筒状の弁体ケース１８を昇降動可能に案内する案内面を内周部に有している。 The guide support portion 12 has a guide surface on the inner peripheral portion that guides the cylindrical valve body case 18 forming a part of the valve body unit so as to be able to move up and down.

雄ねじ軸１４は、雌ねじ部１２Ｂの雌ねじ１２ＦＭＳに嵌め合わされる雄ねじ部１４Ｂと、雄ねじ部１４Ｂの下端に形成され弁体ケース１８の貫通孔１８ａ周縁にワッシャ１６を介して係合される連結部１４Ｃと、雄ねじ部１４Ｂの上端に形成されるガイド軸部１４Ａとから構成される。ガイド軸部１４Ａは、ローターケース２０内の頂部から中心軸線に沿って案内支持部１２に向けて突出する円筒部２０Ｃ内に回動可能に支持される。 The male screw shaft 14 has a male screw portion 14B fitted to the female screw 12FMS of the female screw portion 12B, and a connecting portion 14C formed at the lower end of the male screw portion 14B and engaged with the peripheral edge of the through hole 18a of the valve body case 18 via a washer 16. And a guide shaft portion 14A formed at the upper end of the male screw portion 14B. The guide shaft portion 14A is rotatably supported in a cylindrical portion 20C protruding from the top of the rotor case 20 toward the guide support portion 12 along the central axis.

円筒部２０Ｃの外周部には、可動ストッパ片１３を回転させながら円筒部２０Ｃの中心軸線方向に移動するように案内する螺旋ガイド部１１が形成されている。可動ストッパ片１３の一端は、ロータ１０の突起部に係止されている。また、円筒部２０Ｃの最上端部および最下端部には、それぞれ、可動ストッパ片１３の回転止め２０ＵＳおよび２０ＬＳが設けられている。これにより、可動ストッパ片１３が、回転止め２０ＵＳおよび２０ＬＳに当接されるとき、可動ストッパ片１３が、後述する弁体２６の所定の弁閉位置、および、所定の弁開（全開）位置に対応した所定の回転角度で停止される。 A spiral guide portion 11 is formed on the outer peripheral portion of the cylindrical portion 20C to guide the movable stopper piece 13 so as to move in the direction of the central axis of the cylindrical portion 20C while rotating the movable stopper piece 13. One end of the movable stopper piece 13 is locked to the protrusion of the rotor 10. Further, at the uppermost end portion and the lowermost end portion of the cylindrical portion 20C, rotation stoppers 20US and 20LS of the movable stopper piece 13 are provided, respectively. As a result, when the movable stopper piece 13 comes into contact with the rotation stoppers 20US and 20LS, the movable stopper piece 13 is placed at a predetermined valve closing position and a predetermined valve opening (fully open) position of the valve body 26 described later. It is stopped at the corresponding predetermined rotation angle.

なお、上述の弁駆動部は、図示が省略される駆動制御部により、ステータコイル４０へ供給される駆動パルス信号に基づいて制御される。 The valve drive unit described above is controlled by a drive control unit (not shown) based on a drive pulse signal supplied to the stator coil 40.

弁体ユニットは、後述する弁座３６Ｖの弁ポート３６Ｖａを開閉するニードル状の弁体２６と、雄ねじ軸１４の連結部１４Ｃの張出部１４Ｆを、樹脂製のワッシャ１６およびカラー１７と協働して弁体ケース１８の開口端部１８Ｔの内周縁に係合させる円柱状の樹脂製のばね受け部材２４と、ばね受け部材２４の張出部２４Ｔと弁体２６の一端２６ＥＡのばね受け用環状平坦部との間に配され、双方を互いに離隔する方向に付勢するコイルスプリング２２と、ばね受け部材２４、コイルスプリング２２、および、弁体２６の一端２６ＥＡを収容する円筒状の弁体ケース１８と、を主な要素として含んで構成されている。 The valve body unit cooperates with the resin washer 16 and the collar 17 by connecting the needle-shaped valve body 26 that opens and closes the valve port 36V of the valve seat 36V, which will be described later, and the overhanging portion 14F of the connecting portion 14C of the male screw shaft 14. A columnar resin spring receiving member 24 that engages with the inner peripheral edge of the open end 18T of the valve body case 18, an overhanging portion 24T of the spring receiving member 24, and one end 26EA of the valve body 26 for spring receiving. A cylindrical valve body that is arranged between the annular flat portion and accommodates a coil spring 22 that urges both of them in a direction that separates them from each other, a spring receiving member 24, a coil spring 22, and one end 26EA of the valve body 26. The case 18 and the case 18 are included as the main elements.

円筒状の弁体ケース１８の弁本体部３６に近い一端には、弁体２６の一端２６ＥＡの張出部を受け止めるリング状のストッパ１８Ｅが設けられている。これにより、弁体２６の一端２６ＥＡは、所定の隙間をもってストッパ１８Ｅに支持されるので弁体２６の弁体ケース１８に対する自由度が高められる。弁本体連結部３０は、案内支持部１２の下部、および、円筒状の弁体ケース１８を収容する小部屋３０Ａを有している。 A ring-shaped stopper 18E that receives the overhanging portion of the valve body 26 at one end 26EA is provided at one end of the cylindrical valve body case 18 near the valve body 36. As a result, one end 26EA of the valve body 26 is supported by the stopper 18E with a predetermined gap, so that the degree of freedom of the valve body 26 with respect to the valve body case 18 is increased. The valve body connecting portion 30 has a lower portion of the guide support portion 12 and a small chamber 30A for accommodating the cylindrical valve body case 18.

円筒状の弁体ケース１８の外周部は、上述の案内支持部１２の案内面に摺接され昇降動可能に支持されている。これにより、弁体２６の他端２６ＥＢの最先端（ニードル部）が、弁座３６Ｖの弁ポート３６Ｖａに挿入されるとともに、弁体２６のニードル部の外周面が弁ポート３６Ｖａの開口部周縁に当接した後、引き続き雄ねじ軸１４が下降せしめられるとき、コイルスプリング２２が所定量、圧縮される。それによって、コイルスプリング２２のばね力により弁体２６のニードル部の外周面が弁ポート３６Ｖａの開口部周縁に押し付けられる。これにより、弁座３６Ｖの弁ポート３６Ｖａが、閉塞される。 The outer peripheral portion of the cylindrical valve body case 18 is slidably contacted with the guide surface of the guide support portion 12 described above and is supported so as to be able to move up and down. As a result, the cutting edge (needle portion) of the other end 26EB of the valve body 26 is inserted into the valve port 36V of the valve seat 36V, and the outer peripheral surface of the needle portion of the valve body 26 becomes the peripheral edge of the opening of the valve port 36V. After the contact, when the male screw shaft 14 is continuously lowered, the coil spring 22 is compressed by a predetermined amount. As a result, the outer peripheral surface of the needle portion of the valve body 26 is pressed against the peripheral edge of the opening of the valve port 36V by the spring force of the coil spring 22. As a result, the valve port 36Va of the valve seat 36V is closed.

弁本体部３６は、金属材料、例えば、真鍮、ステンレス鋼、アルミニウム合金、または、樹脂材料等により作られ、弁体２６を昇降可能に案内するブッシュ３８と、弁体２６の他端２６ＥＢとを収容する弁体収容部３６Ａを内側に有している。弁本体部３６の上端部は、上述の弁本体連結部３０の下端の孔周縁にかしめおよびろう付けにより固定されている。ブッシュ３８は、弁本体部３６の上端部に圧入およびかしめにより固定されている。 The valve body 36 is made of a metal material such as brass, stainless steel, aluminum alloy, or resin material, and has a bush 38 that guides the valve body 26 so as to be able to move up and down, and the other end 26EB of the valve body 26. It has a valve body accommodating portion 36A for accommodating inside. The upper end of the valve body 36 is fixed to the peripheral edge of the hole at the lower end of the valve body connecting portion 30 by caulking and brazing. The bush 38 is fixed to the upper end of the valve body 36 by press fitting and caulking.

弁体収容部３６Ａには、弁体２６の他端２６ＥＢが弁ポート３６Ｖａに向けて突出している。また、弁体収容部３６Ａには、弁体２６の中心軸線に対し略直交する軸線上に第１の通路としての接続用パイプ３２の一端が接続される第１のポート３２Ｐと、弁体２６の中心軸線と共通の軸線上に第２の通路としての接続用パイプ３４の一端が接続される、第２のポート３４Ｐとが形成されるとともに、第１のポート３２Ｐおよび第２のポート３４Ｐに連通する弁ポート３６Ｖａを有する弁座３６Ｖが、形成されている。 The other end 26EB of the valve body 26 projects from the valve body accommodating portion 36A toward the valve port 36Va. Further, the valve body accommodating portion 36A has a first port 32P to which one end of a connection pipe 32 as a first passage is connected on an axis substantially orthogonal to the central axis of the valve body 26, and the valve body 26. A second port 34P is formed in which one end of a connecting pipe 34 as a second passage is connected on an axis common to the central axis of the above, and the first port 32P and the second port 34P are formed. A valve seat 36V having a communicating valve port 36Va is formed.

一様な外径を全長にわたり有する銅合金製の接続用パイプ３２の内周部は、第１のポート３２Ｐに近接した位置から接続用パイプ３２の他端に向けて所定の長さだけ延びる小径部３２ｂと、小径部３２ｂに連通し、接続用パイプ３２の他端に対応した位置に形成される嵌合用大径部３２ａと、からなる。嵌合用大径部３２ａは、小径部３２ｂよりも若干大なる内径を有し、図１（Ｂ）に示されるように、後述する所定の外径を有する配管用パイプ５０の端部が挿入され、ろう付けにより、嵌合用大径部３２ａに固定される。嵌合用大径部３２ａと小径部３２ｂとの境界部分には、段差部３２ｓが形成されている。段差部３２ｓの位置は、差込み深さが、日本工業規格ＪＩＳＢ８６０７（２００８）に規定される「ろう付け管継手」の差込みの最小深さ（Ｇ寸法）よりも若干大であって、嵌合用大径部３２ａの内径よりも大となるように設定されている。 The inner peripheral portion of the copper alloy connecting pipe 32 having a uniform outer diameter over the entire length has a small diameter extending by a predetermined length from a position close to the first port 32P toward the other end of the connecting pipe 32. It is composed of a portion 32b and a large-diameter fitting portion 32a that communicates with the small-diameter portion 32b and is formed at a position corresponding to the other end of the connecting pipe 32. The large diameter portion 32a for fitting has an inner diameter slightly larger than that of the small diameter portion 32b, and as shown in FIG. 1 (B), an end portion of a piping pipe 50 having a predetermined outer diameter described later is inserted. , It is fixed to the large diameter portion 32a for fitting by brazing. A step portion 32s is formed at the boundary portion between the large diameter portion 32a for fitting and the small diameter portion 32b. The position of the stepped portion 32s is such that the insertion depth is slightly larger than the minimum insertion depth (G dimension) of the "brazing pipe joint" specified in Japanese Industrial Standards JISB8607 (2008), and is large for fitting. It is set to be larger than the inner diameter of the diameter portion 32a.

また、一様な外径を全長にわたり有する銅合金製の接続用パイプ３４の内周部は、第２のポート３４Ｐに近接した位置から接続用パイプ３４の他端に向けて所定の長さだけ延びる小径部３４ｂと、小径部３４ｂに連通し、接続用パイプ３４の他端に対応した位置に形成される嵌合用大径部３４ａと、からなる。嵌合用大径部３４ａは、小径部３４ｂよりも若干大なる内径を有し、後述する所定の外径を有する配管用パイプ５０の端部が挿入されろう付けにより、嵌合用大径部３４ａに固定される。嵌合用大径部３４ａと小径部３４ｂとの境界部分には、段差部３４ｓが形成されている。段差部３４ｓの位置は、差込み深さが、日本工業規格ＪＩＳＢ８６０７（２００８）に規定される「ろう付け管継手」の差込みの最小深さ（Ｇ寸法）よりも若干大であって、嵌合用大径部３４ａの内径よりも大となるように設定されている。嵌合用大径部３４ａの肉厚は、小径部３４ｂの肉厚よりも薄くなるものの小径部３４ｂの肉厚は薄くする必要がないので耐振動性の低下を抑制できる。 Further, the inner peripheral portion of the copper alloy connecting pipe 34 having a uniform outer diameter over the entire length is provided by a predetermined length from a position close to the second port 34P toward the other end of the connecting pipe 34. It is composed of an extending small diameter portion 34b and a fitting large diameter portion 34a that communicates with the small diameter portion 34b and is formed at a position corresponding to the other end of the connecting pipe 34. The large diameter portion 34a for fitting has an inner diameter slightly larger than that of the small diameter portion 34b, and the end portion of the piping pipe 50 having a predetermined outer diameter described later is inserted and brazed to the large diameter portion 34a for fitting. It is fixed. A step portion 34s is formed at the boundary portion between the large diameter portion 34a for fitting and the small diameter portion 34b. The position of the stepped portion 34s is such that the insertion depth is slightly larger than the minimum insertion depth (G dimension) of the "brazing pipe joint" specified in Japanese Industrial Standards JISB8607 (2008), and is large for fitting. It is set to be larger than the inner diameter of the diameter portion 34a. Although the wall thickness of the large diameter portion 34a for fitting is thinner than the wall thickness of the small diameter portion 34b, the wall thickness of the small diameter portion 34b does not need to be thin, so that a decrease in vibration resistance can be suppressed.

斯かる構成において、弁駆動部のステータコイル４０が駆動制御部からの駆動パルス信号により制御され、弁体２６が昇降動せしめられることにより、接続用パイプ３２または接続用パイプ３４を通じて供給される流体としての冷媒が、図１（A）に示される矢印Ｆまたは矢印Ｒの示す方向に沿って弁座３６Ｖの弁ポート３６Ｖａを形成する内周面と弁体２６の他端２６ＥＢのニードル部との間に形成される隙間流路を通じて所定の流量で通過することとなる。 In such a configuration, the stator coil 40 of the valve drive unit is controlled by the drive pulse signal from the drive control unit, and the valve body 26 is moved up and down to supply the fluid through the connection pipe 32 or the connection pipe 34. The refrigerant as is formed on the inner peripheral surface forming the valve port 36V of the valve seat 36V along the direction indicated by the arrow F or the arrow R shown in FIG. 1A, and the needle portion of the other end 26EB of the valve body 26. It will pass at a predetermined flow rate through the gap flow path formed between them.

さらに、斯かる構成において、電動弁は、接続用パイプ３２および接続用パイプ３４の他端が、接続用パイプ３２および接続用パイプ３４の内径よりも小なる外径を有する配管用パイプ５０に接続される以前に、電動弁における気密試験、ガス流量試験等を行うにあたっては、例えば、図２（A）に示されるように、接続用パイプ３２および接続用パイプ３４の他端が所定の試験装置の接続用ジョイント４８に着脱可能に接続される。なお、接続用パイプ３４の他端は、接続用パイプ３２と同様に、接続用ジョイント４８に接続されるのでその説明が省略される。 Further, in such a configuration, the electric valve connects the connecting pipe 32 and the other end of the connecting pipe 34 to the piping pipe 50 having an outer diameter smaller than the inner diameter of the connecting pipe 32 and the connecting pipe 34. When performing an airtightness test, a gas flow rate test, or the like in an electric valve, for example, as shown in FIG. 2A, the other ends of the connecting pipe 32 and the connecting pipe 34 are predetermined test devices. It is detachably connected to the connection joint 48 of. Since the other end of the connection pipe 34 is connected to the connection joint 48 in the same manner as the connection pipe 32, the description thereof will be omitted.

接続用ジョイント４８の開口端部には、接続用パイプ３２の他端の外周部と接続用ジョイント４８の接続端部の内周部との間の隙間を密封する円筒状の弾性変位可能なシール部材４６が設けられている。シール部材４６の内周部は、接続用ジョイント４８の試験用ガス供給路４８ａに連通している。これにより、接続用パイプ３２の他端が、接続用ジョイント４８のシール部材４６の内周部に挿入されることによって、シール部材４６の内周部と接続パイプ３２の端部の外周部との間が隙間なく、軸線方向に沿った十分な長さをもって確実に密封された状態で接続用パイプ３２の内部と試験用ガス供給路４８ａとが連通することとなる。そして、試験用ガスが矢印の示す方向に沿って接続パイプ３２に供給され気密試験、ガス流量試験等が終了した後、接続用パイプ３２の他端を接続用ジョイント４８のシール部材４６の内周部から容易に引き抜くことが可能となる。そして、嵌合用大径部３２ａおよび３４ａは、それぞれ、図１（B）に示されるように、配管用パイプ５０の端部に、ろう付けにより固定される。 At the open end of the connecting joint 48, a cylindrical elastically displaceable seal that seals the gap between the outer peripheral portion of the other end of the connecting pipe 32 and the inner peripheral portion of the connecting end portion of the connecting joint 48. A member 46 is provided. The inner peripheral portion of the seal member 46 communicates with the test gas supply path 48a of the connecting joint 48. As a result, the other end of the connecting pipe 32 is inserted into the inner peripheral portion of the sealing member 46 of the connecting joint 48, so that the inner peripheral portion of the sealing member 46 and the outer peripheral portion of the end portion of the connecting pipe 32 are connected to each other. The inside of the connecting pipe 32 and the test gas supply path 48a communicate with each other in a state where there is no gap between them and the connection pipe 32 is securely sealed with a sufficient length along the axial direction. Then, after the test gas is supplied to the connecting pipe 32 along the direction indicated by the arrow and the airtightness test, the gas flow rate test, etc. are completed, the other end of the connecting pipe 32 is the inner circumference of the seal member 46 of the connecting joint 48. It can be easily pulled out from the part. Then, the large diameter portions 32a and 34a for fitting are fixed to the ends of the piping pipe 50 by brazing, respectively, as shown in FIG. 1 (B).

一方、図２（Ｂ）に示される参考例のように、電動弁の弁座３６Ｖに接続された接続用パイプ８の他端が、ろう付け管継手の雌接合部としての大径部８Ａを有している場合、接続用パイプ８の他端が、接続用ジョイント４８のシール部材４６に接続されたとき、以下のような問題が伴う場合がある。なお、電動弁の弁座３６Ｖに接続された接続用パイプ８の大径部８Ａ以外の部分および一端は、大径部８Ａの外径よりも小なる一様な外径を有する小径部８Ｂを有している。 On the other hand, as shown in the reference example shown in FIG. 2B, the other end of the connection pipe 8 connected to the valve seat 36V of the electric valve forms a large diameter portion 8A as a female joint portion of the brazed pipe joint. If it is provided, the following problems may occur when the other end of the connecting pipe 8 is connected to the sealing member 46 of the connecting joint 48. The portion and one end of the connecting pipe 8 connected to the valve seat 36V of the electric valve other than the large diameter portion 8A have a small diameter portion 8B having a uniform outer diameter smaller than the outer diameter of the large diameter portion 8A. Have.

接続用パイプ８の大径部８Ａが、接続用ジョイント４８に接続される場合、大径部８Ａにおける接続用ジョイント４８のシール部材４６の内周部に差し込まれた部分の軸線方向の長さが十分ではなく、しかも、小径部８Ｂと大径部８Ａとの境界の外周部分、および、小径部８Ｂの外周部の一部とシール部材４６の内周部との間に隙間ＣＬが生じるので試験用ガスが試験用ガス供給路４８ａを通じて矢印の示す方向に沿って大径部８Ａの内周部８ａおよび小径部８Ｂの内周部８ｂに供給されるとき、試験用ガスが大径部８Ａの外周部とシール部材４６の内周部との間を通じて漏れ出す虞がある。 When the large diameter portion 8A of the connecting pipe 8 is connected to the connecting joint 48, the axial length of the portion of the large diameter portion 8A inserted into the inner peripheral portion of the sealing member 46 of the connecting joint 48 is The test is not sufficient, and a gap CL is generated between the outer peripheral portion of the boundary between the small diameter portion 8B and the large diameter portion 8A, and a part of the outer peripheral portion of the small diameter portion 8B and the inner peripheral portion of the seal member 46. When the test gas is supplied to the inner peripheral portion 8a of the large diameter portion 8A and the inner peripheral portion 8b of the small diameter portion 8B along the direction indicated by the arrow through the test gas supply path 48a, the test gas is supplied to the large diameter portion 8A. There is a risk of leakage through between the outer peripheral portion and the inner peripheral portion of the seal member 46.

図３（Ａ）は、本発明に係る配管の接続構造の第２実施例が適用された電動弁の構成を、接続用パイプとともに示す。なお、図３（Ａ）において、図１（Ａ）における構成要素と同一の構成要素について同一の符号を付して示し、その重複説明を省略する。 FIG. 3A shows the configuration of the electric valve to which the second embodiment of the pipe connection structure according to the present invention is applied, together with the connection pipe. Note that, in FIG. 3A, the same components as those in FIG. 1A are designated by the same reference numerals, and duplicate description thereof will be omitted.

図３（Ａ）において、弁体収容部３６Ａには、弁体２６の中心軸線に対し略直交する軸線上に第１の通路としての銅合金製の接続用パイプ４２の一端が接続される第１のポート４２Ｐと、弁体２６の中心軸線と共通の軸線上に第２の通路としての銅合金製の接続用パイプ４４の一端が接続される、第２のポート４４Ｐとが形成されるとともに、第１のポート４２Ｐおよび第２のポート４４Ｐに連通する弁ポート３６Ｖａを有する弁座３６Ｖが、形成されている。 In FIG. 3A, one end of a copper alloy connecting pipe 42 as a first passage is connected to the valve body accommodating portion 36A on an axis substantially orthogonal to the central axis of the valve body 26. A port 42P of 1 and a second port 44P to which one end of a copper alloy connecting pipe 44 as a second passage is connected on an axis common to the central axis of the valve body 26 are formed. , A valve seat 36V having a valve port 36V communicating with the first port 42P and the second port 44P is formed.

一様な外径を全長にわたり有する接続用パイプ４２の内周部は、第１のポート４２Ｐに近接した位置から接続用パイプ４２の他端に向けて所定の長さだけ延びる小径部４２ｂと、小径部４２ｂに連通し、接続用パイプ４２の他端に対応した位置に形成される嵌合用大径部４２ａと、からなる。嵌合用大径部４２ａは、小径部４２ｂよりも若干大なる内径を有し、図３（Ｂ）に示されるように、配管用パイプ５０の端部が後述するダボ４２ｄで位置決めされた状態で、配管用パイプ５０の端部に、ろう付けにより固定される。嵌合用大径部４２ａと小径部４２ｂとの境界部分には、段差部４２ｓが形成されるとともに、加えて、嵌合用大径部４２ａにおける段差部４２ｓに対し開口端側に離隔した部分には、ダボ加工により、突起部として内側に向けて所定の高さだけ***するダボ４２ｄが、少なくとも２箇所に形成されている。ダボ加工は、気密試験、ガス流量試験等が終了し、接続用パイプ３２の他端を接続用ジョイント４８のシール部材４６の内周部から引き抜いた後に施される。ダボ４２ｄの位置は、差込み深さが、日本工業規格ＪＩＳＢ８６０７（２００８）に規定される「ろう付け管継手」の差込みの最小深さ（Ｇ寸法）よりも若干大となるように設定されている。ダボ４２ｄにおける開口端からその中心位置までの距離は、嵌合用大径部４２ａの内径よりも大に設定されている。嵌合用大径部４２ａの肉厚は、小径部４２ｂの肉厚よりも薄くなるものの小径部４２ｂの肉厚は薄くする必要がないので耐振動性の低下を抑制できる。 The inner peripheral portion of the connecting pipe 42 having a uniform outer diameter over the entire length includes a small diameter portion 42b extending by a predetermined length from a position close to the first port 42P toward the other end of the connecting pipe 42. It is composed of a large-diameter fitting portion 42a that communicates with the small-diameter portion 42b and is formed at a position corresponding to the other end of the connecting pipe 42. The large diameter portion 42a for fitting has an inner diameter slightly larger than that of the small diameter portion 42b, and as shown in FIG. 3B, the end portion of the piping pipe 50 is positioned by a dowel 42d described later. , It is fixed to the end of the piping pipe 50 by brazing. A step portion 42s is formed at the boundary portion between the large diameter portion 42a for fitting and the small diameter portion 42b, and in addition, a portion of the large diameter portion 42a for fitting that is separated from the step portion 42s on the opening end side is formed. By the dowel processing, dowels 42d which are raised inward by a predetermined height as protrusions are formed at at least two places. The dowel processing is performed after the airtightness test, the gas flow rate test, and the like are completed, and the other end of the connecting pipe 32 is pulled out from the inner peripheral portion of the seal member 46 of the connecting joint 48. The position of the dowel 42d is set so that the insertion depth is slightly larger than the minimum insertion depth (G dimension) of the "brazing pipe joint" specified in Japanese Industrial Standards JISB8607 (2008). .. The distance from the opening end of the dowel 42d to its center position is set to be larger than the inner diameter of the large diameter portion 42a for fitting. Although the wall thickness of the large diameter portion 42a for fitting is thinner than the wall thickness of the small diameter portion 42b, the wall thickness of the small diameter portion 42b does not need to be thin, so that a decrease in vibration resistance can be suppressed.

また、一様な外径を全長にわたり有する接続用パイプ４４の内周部は、第２のポート４４Ｐに近接した位置から接続用パイプ４４の他端に向けて所定の長さだけ延びる小径部４４ｂと、小径部４４ｂに連通し、接続用パイプ４４の他端に対応した位置に形成される嵌合用大径部４４ａと、からなる。嵌合用大径部４４ａは、小径部４４ｂよりも若干大なる内径を有し、配管用パイプ５０の端部が後述するダボ４４ｄで位置決めされた状態で、ろう付けにより、配管用パイプ５０の端部に固定される。嵌合用大径部４４ａと小径部４４ｂとの境界部分には、段差部４４ｓが形成されるとともに、加えて、嵌合用大径部４４ａにおける段差部４４ｓに対し開口端側に離隔した部分には、ダボ加工により、突起部として内側に向けて所定の高さだけ***するダボ４４ｄが、少なくとも２箇所に形成されている。ダボ４４ｄの位置は、差込み深さが、日本工業規格ＪＩＳＢ８６０７（２００８）に規定される「ろう付け管継手」の差込みの最小深さ（Ｇ寸法）よりも若干大となるように設定されている。 Further, the inner peripheral portion of the connecting pipe 44 having a uniform outer diameter over the entire length is a small diameter portion 44b extending by a predetermined length from a position close to the second port 44P toward the other end of the connecting pipe 44. And a large-diameter portion 44a for fitting, which communicates with the small-diameter portion 44b and is formed at a position corresponding to the other end of the connecting pipe 44. The large diameter portion 44a for fitting has an inner diameter slightly larger than that of the small diameter portion 44b, and the end of the piping pipe 50 is positioned by a dowel 44d, which will be described later, by brazing. It is fixed to the part. A step portion 44s is formed at the boundary portion between the large diameter portion 44a for fitting and the small diameter portion 44b, and in addition, a portion of the large diameter portion 44a for fitting that is separated from the step portion 44s on the opening end side is formed. By the dowel processing, dowels 44d which are raised inward by a predetermined height as protrusions are formed at at least two places. The position of the dowel 44d is set so that the insertion depth is slightly larger than the minimum insertion depth (G dimension) of the "brazing pipe joint" specified in Japanese Industrial Standards JISB8607 (2008). ..

斯かる構成においても、弁駆動部のステータコイル４０が駆動制御部からの駆動パルス信号により制御され、弁体２６が昇降動せしめられることにより、接続用パイプ４２または接続用パイプ４４を通じて供給される流体としての冷媒が、図３（A）に示される矢印Ｆまたは矢印Ｒの示す方向に沿って弁座３６Ｖの弁ポート３６Ｖａを形成する内周面と弁体２６の他端２６ＥＢのニードル部との間に形成される隙間流路を通じて所定の流量で通過することとなる。 Even in such a configuration, the stator coil 40 of the valve drive unit is controlled by the drive pulse signal from the drive control unit, and the valve body 26 is moved up and down to be supplied through the connection pipe 42 or the connection pipe 44. The refrigerant as a fluid forms the inner peripheral surface forming the valve port 36V of the valve seat 36V along the direction indicated by the arrow F or the arrow R shown in FIG. 3A, and the needle portion of the other end 26EB of the valve body 26. It will pass at a predetermined flow rate through the gap flow path formed between the two.

さらに、電動弁は、接続用パイプ４２および接続用パイプ４４の他端が配管用パイプ５０に接続される以前に、電動弁における気密試験、ガス流量試験等を行うにあたって、接続用パイプ４２の他端が、図２（Ａ）に示されるような接続用ジョイント４８のシール部材４６の内周部に挿入されることによって、シール部材４６の内周部と接続パイプ４２の端部の外周部との間が隙間なく、軸線方向に沿った十分な長さをもって確実に密封された状態で接続用パイプ４２の内部と試験用ガス供給路４８ａとが連通することとなる。そして、試験用ガスが接続パイプ４２に供給され気密試験、ガス流量試験等が終了した後、接続用パイプ４２の他端を接続用ジョイント４８のシール部材４６の内周部から容易に引き抜くことが可能となる。 Further, the electric valve is different from the connection pipe 42 in performing an airtightness test, a gas flow rate test, etc. in the electric valve before the other end of the connection pipe 42 and the connection pipe 44 is connected to the piping pipe 50. By inserting the end into the inner peripheral portion of the sealing member 46 of the connecting joint 48 as shown in FIG. 2A, the inner peripheral portion of the sealing member 46 and the outer peripheral portion of the end portion of the connecting pipe 42 are formed. The inside of the connecting pipe 42 and the test gas supply path 48a communicate with each other in a state where there is no gap between them and the connection pipe 42 is securely sealed with a sufficient length along the axial direction. Then, after the test gas is supplied to the connecting pipe 42 and the airtightness test, the gas flow rate test, etc. are completed, the other end of the connecting pipe 42 can be easily pulled out from the inner peripheral portion of the seal member 46 of the connecting joint 48. It will be possible.

なお、上述の本発明に係る配管の接続構造の実施例が、弁体２６のニードル部の外周面が弁ポート３６Ｖａの開口部周縁に当接することで、弁体２６が弁座３６Ｖの弁ポート３６Ｖａを締め切る電動弁（弁閉仕様）について適用されているが、斯かる例に限られることなく、可動ストッパ片１３が、回転止め２０ＵＳおよび２０ＬＳに当接される回転角度の設定により、弁体２６の最下降位置（弁閉位置）においても弁体２６が弁ポート３６Ｖａの開口部周縁に当接せず、弁ポート３６Ｖａの開口を常に維持するように開閉制御する弁開仕様に適用されてもよい。 上述の本発明に係る配管の接続構造の実施例が、電動弁について適用されているが、斯かる例に限られることなく、例えば、電磁アクチュエータとしてソレノイドを用いて、弁体が弁ポートに対して当接して締め切る閉状態と弁ポートから離間した開状態の二位置となるように弁体を開閉制御する電磁弁、第２ポートが形成された弁座面上を弁体が摺動移動することで弁ポート（第２ポート）を開閉制御するスライド弁や、スライド弁の一部であって、一つの入口ポート（第１ポート）に対して少なくとも二つの出口ポート（第２ポート）を有し、弁座面上を摺動移動する弁体が開閉制御する位置により流路を切り換える流路切換弁等の他の弁装置に対し適用されてもよいことは勿論である。また、上述の本発明に係る配管の接続構造の実施例が、弁ポートを開閉制御する動作を行わせる駆動機構を作動させる電磁アクチュエータを備える弁装置に適用されているが、ハンドル等により手動で駆動機構を作動させる弁装置に対して適用されてもよい。 In the above-described embodiment of the pipe connection structure according to the present invention, the outer peripheral surface of the needle portion of the valve body 26 comes into contact with the peripheral edge of the opening of the valve port 36V, so that the valve body 26 is the valve port of the valve seat 36V. It is applied to the electric valve (valve closing specification) that closes 36V, but it is not limited to such an example, and the movable stopper piece 13 is set to the rotation angle at which the rotation stopper 20US and 20LS are brought into contact with the valve body. It is applied to the valve opening specification that controls opening and closing so that the valve body 26 does not come into contact with the peripheral edge of the opening of the valve port 36V even at the lowest position (valve closed position) of the 26 and always maintains the opening of the valve port 36V. May be good. The above-described embodiment of the pipe connection structure according to the present invention is applied to the electric valve, but the present invention is not limited to such an example, and for example, a solenoid is used as an electromagnetic actuator, and the valve body is attached to the valve port. The solenoid valve controls the opening and closing of the valve body so that it is in two positions, the closed state where it is closed by contacting and closing, and the valve body is sliding and moving on the valve seat surface where the second port is formed. This means that there is a slide valve that controls the opening and closing of the valve port (second port), and a part of the slide valve that has at least two outlet ports (second port) for one inlet port (first port). Of course, it may be applied to other valve devices such as a flow path switching valve that switches the flow path depending on the position where the valve body that slides and moves on the valve seat surface controls opening and closing. Further, the above-described embodiment of the pipe connection structure according to the present invention is applied to a valve device including an electromagnetic actuator that operates a drive mechanism that controls opening and closing of a valve port, but is manually operated by a handle or the like. It may be applied to a valve device that activates a drive mechanism.

２６ 弁体
３２、３４、４２、４４ 接続用パイプ
３２Ｐ 第１のポート
３４Ｐ 第２のポート
３２ａ、３４ａ、４２ａ、４４ａ 大径部
３２ｓ、３４ｓ、４２ｓ、４４ｓ 段差部
３６ 弁本体部
３６Ａ 弁体収容部
３６Ｖ 弁座
４６ シール部材
４８ 接続用ジョイント
５０ 配管用パイプ 26 Valve body 32, 34, 42, 44 Connection pipe 32P First port 34P Second port 32a, 34a, 42a, 44a Large diameter part 32s, 34s, 42s, 44s Step part 36 Valve body part 36A Valve body accommodation Part 36V Valve seat 46 Sealing member 48 Connection joint 50 Piping pipe

Claims (4)

弁体収容部に一端が接続され、他端の内周部に配管用パイプに接続される一様な外径を全長にわたり有する接続用パイプを備え、
前記接続用パイプの内周部は、小径部と、該小径部に連通し該接続用パイプの他端に対応した位置に形成され、前記配管用パイプの端部が挿入される嵌合用大径部と、からなることを特徴とする配管の接続構造。 One end is connected to the valve body accommodating portion, and the inner peripheral portion of the other end is provided with a connecting pipe having a uniform outer diameter connected to the piping pipe over the entire length.
The inner peripheral portion of the connection pipe is formed at a position corresponding to the small diameter portion and the other end of the connection pipe communicating with the small diameter portion, and the end portion of the piping pipe is inserted into the large diameter portion for fitting. A pipe connection structure characterized by consisting of a part and a part. 第１の接続用パイプに接続される第１のポートと、該第１の接続用パイプに対し略直交する第２の接続用パイプに接続される第２のポートとを有し、該第１のポートおよび該第２のポートに連通し、該第２のポートに設けられた弁座の弁ポートを開閉制御する弁体を含んでなる弁体ユニットを移動可能に収容する弁体収容部を備える弁本体部と、
前記弁体ユニットに、前記弁体の先端部と前記弁座の弁ポートの周縁との間を通過する流体の流量を調整するように、前記弁座の弁ポートを開閉制御する動作を行わせる駆動機構を作動させるステータコイルユニットを含んでなる電磁アクチュエータと、を備え、
一様な外径を全長にわたり有する前記第１の接続用パイプおよび第２の接続用パイプの内周部は、小径部と、該小径部に連通し該第１および第２の接続用パイプの他端に対応した位置に形成され、前記配管用パイプの端部が挿入される嵌合用大径部と、からなることを特徴とする弁装置。 It has a first port connected to a first connecting pipe and a second port connected to a second connecting pipe that is substantially orthogonal to the first connecting pipe, and the first port. A valve body accommodating portion that movably accommodates a valve body unit including a valve body that communicates with the port and the second port and controls the opening and closing of the valve seat of the valve seat provided in the second port. The valve body to be provided and
The valve body unit is caused to perform an operation of opening and closing the valve port of the valve seat so as to adjust the flow rate of the fluid passing between the tip end portion of the valve body and the peripheral edge of the valve port of the valve seat. An electromagnetic actuator including a stator coil unit for operating a drive mechanism, and
The inner peripheral portions of the first connecting pipe and the second connecting pipe having a uniform outer diameter over the entire length are connected to the small diameter portion and the small diameter portion of the first and second connecting pipes. A valve device characterized by being formed at a position corresponding to the other end and comprising a large-diameter fitting portion into which an end portion of the piping pipe is inserted. 前記第１の接続用パイプおよび第２の接続用パイプは、それぞれ、該第１の接続用パイプおよび第２の接続用パイプの他端の内周部における小径部と嵌合用大径部との境界部分に対し嵌合用大径部の開口端の方向に離隔した位置に、該第１の接続用パイプおよび第２の接続用パイプの内側に***する突起部が、２箇所に形成されることを特徴とする請求項２記載の弁装置。 The first connection pipe and the second connection pipe have a small diameter portion and a large diameter portion for fitting at the inner peripheral portion of the other end of the first connection pipe and the second connection pipe, respectively. Two protrusions are formed on the inside of the first connecting pipe and the second connecting pipe at positions separated from the boundary portion in the direction of the opening end of the large diameter portion for fitting. 2. The valve device according to claim 2. 前記嵌合用大径部に挿入された前記配管用パイプの端部が、前記突起部により位置決めされることを特徴とする請求項３記載の弁装置。 The valve device according to claim 3, wherein the end portion of the piping pipe inserted into the large diameter portion for fitting is positioned by the protrusion.
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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05133489A (en) * 1991-11-08 1993-05-28 Furukawa Electric Co Ltd:The Brazed joint
JP2005069389A (en) * 2003-08-26 2005-03-17 Saginomiya Seisakusho Inc Valve device
JP2005325856A (en) * 2004-05-12 2005-11-24 Saginomiya Seisakusho Inc High-pressure fluid control equipment, and manufacturing method thereof
JP2008096082A (en) * 2006-10-16 2008-04-24 Mitsubishi Electric Corp Piping joint structure for refrigerating cycle, compressor, and refrigeration system
US20150101685A1 (en) * 2012-04-28 2015-04-16 Zhejiang Sanhua Co., Ltd. Thermal expansion valve with one-way control function
US20150114495A1 (en) * 2012-06-20 2015-04-30 Zhejiang Sanhua Co., Ltd. Electronic expansion valve
US20150122360A1 (en) * 2012-05-11 2015-05-07 Zhejiang Sanhua Co., Ltd. Electronic expansion valve
US20150121951A1 (en) * 2012-05-18 2015-05-07 Zhejiang Sanhua Co., Ltd. Electronic expansion valve
US20150184768A1 (en) * 2012-08-10 2015-07-02 Zhejiang Sanhua Co., Ltd. Electronic expanding valve
CN109954996A (en) * 2017-12-22 2019-07-02 浙江盾安禾田金属有限公司 A kind of joint pipe structure, four-way reversing valve and air conditioner
JP2019143727A (en) * 2018-02-21 2019-08-29 株式会社鷺宮製作所 Flow control valve and refrigeration cycle system
JP2019143726A (en) * 2018-02-21 2019-08-29 株式会社鷺宮製作所 Flow control valve and refrigeration cycle system
WO2020135396A1 (en) * 2018-12-28 2020-07-02 浙江三花制冷集团有限公司 Flow control valve
EP3786500A1 (en) * 2019-09-02 2021-03-03 Danfoss A/S Solenoid valve, armature tube and armature top for a solenoid valve

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05133489A (en) * 1991-11-08 1993-05-28 Furukawa Electric Co Ltd:The Brazed joint
JP2005069389A (en) * 2003-08-26 2005-03-17 Saginomiya Seisakusho Inc Valve device
JP2005325856A (en) * 2004-05-12 2005-11-24 Saginomiya Seisakusho Inc High-pressure fluid control equipment, and manufacturing method thereof
JP2008096082A (en) * 2006-10-16 2008-04-24 Mitsubishi Electric Corp Piping joint structure for refrigerating cycle, compressor, and refrigeration system
US20150101685A1 (en) * 2012-04-28 2015-04-16 Zhejiang Sanhua Co., Ltd. Thermal expansion valve with one-way control function
US20150122360A1 (en) * 2012-05-11 2015-05-07 Zhejiang Sanhua Co., Ltd. Electronic expansion valve
US20150121951A1 (en) * 2012-05-18 2015-05-07 Zhejiang Sanhua Co., Ltd. Electronic expansion valve
US20150114495A1 (en) * 2012-06-20 2015-04-30 Zhejiang Sanhua Co., Ltd. Electronic expansion valve
US20150184768A1 (en) * 2012-08-10 2015-07-02 Zhejiang Sanhua Co., Ltd. Electronic expanding valve
CN109954996A (en) * 2017-12-22 2019-07-02 浙江盾安禾田金属有限公司 A kind of joint pipe structure, four-way reversing valve and air conditioner
JP2019143727A (en) * 2018-02-21 2019-08-29 株式会社鷺宮製作所 Flow control valve and refrigeration cycle system
JP2019143726A (en) * 2018-02-21 2019-08-29 株式会社鷺宮製作所 Flow control valve and refrigeration cycle system
WO2020135396A1 (en) * 2018-12-28 2020-07-02 浙江三花制冷集团有限公司 Flow control valve
EP3786500A1 (en) * 2019-09-02 2021-03-03 Danfoss A/S Solenoid valve, armature tube and armature top for a solenoid valve

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