JP2013061047A - Male side joint member, method for manufacturing the same, and refrigerating cycle having male side joint member - Google Patents
Male side joint member, method for manufacturing the same, and refrigerating cycle having male side joint member Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 9
- 238000003780 insertion Methods 0.000 claims abstract description 56
- 230000037431 insertion Effects 0.000 claims abstract description 56
- 238000005452 bending Methods 0.000 claims abstract description 33
- 230000002093 peripheral effect Effects 0.000 claims description 23
- 238000005057 refrigeration Methods 0.000 claims description 13
- 239000011324 bead Substances 0.000 claims description 11
- 239000003507 refrigerant Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 11
- 238000010168 coupling process Methods 0.000 description 11
- 238000005859 coupling reaction Methods 0.000 description 11
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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Abstract
Description
この発明は雄側継手部材およびその製造方法、ならびに雄側継手部材を有する冷凍サイクルに関し、さらに詳しくは、たとえば車両に搭載される空調装置を構成する冷凍サイクルにおいて、配管を形成する配管用パイプどうしを接続する配管用継手に用いられる雄側継手部材およびその製造方法、ならびに雄側継手部材を有する冷凍サイクルに関する。 The present invention relates to a male joint member, a method for manufacturing the same, and a refrigeration cycle having a male joint member. More specifically, for example, in a refrigeration cycle that constitutes an air conditioner mounted on a vehicle, pipes that form a pipe are connected to each other. The present invention relates to a male side joint member used for a joint for piping that connects to each other, a manufacturing method thereof, and a refrigeration cycle having a male side joint member.
冷凍サイクルの配管用継手には、円筒状の嵌合凸部を有する雄側継手部材および嵌合凸部が嵌る嵌合凹部を有する雌側継手部材を備えたものが広く用いられている。このような配管用継手の雄側継手部材としては、円筒状の嵌合凸部を有する雄側継手部材および嵌合凸部が嵌る嵌合凹部を有する雌側継手部材を備えている配管用継手に用いられる雄側継手部材であって、パイプ固定ブロックと、パイプ固定ブロックに固定された配管用パイプとよりなり、パイプ固定ブロックが、平坦な第１面、第１面と所定角度をなす第２面および第１面とは反対側を向いた第３面を有しており、配管用パイプが、パイプ固定ブロックに保持されたエルボ状の第１部分と、第１部分の一端に連なるとともにパイプ固定ブロックの第１面と直角をなすように第１面から外方に突出し、かつ嵌合凸部を構成する第２部分と、第１部分の他端に連なってパイプ固定ブロックの第２面から外方に突出しかつ第２部分と所定の角度をなす第３部分とよりなるものが知られている（特許文献１参照）。 2. Description of the Related Art A pipe joint for a refrigeration cycle that includes a male joint member having a cylindrical fitting convex part and a female joint member having a fitting concave part into which the fitting convex part is fitted is widely used. As a male side joint member of such a pipe joint, a pipe joint comprising a male side joint member having a cylindrical fitting convex part and a female side joint member having a fitting concave part into which the fitting convex part is fitted. A male joint member for use in a pipe comprising a pipe fixing block and a pipe for piping fixed to the pipe fixing block, wherein the pipe fixing block forms a predetermined angle with the flat first surface and the first surface. The pipe has a third surface facing the opposite side to the first surface and the elbow-shaped first portion held by the pipe fixing block and one end of the first portion. A second portion that protrudes outward from the first surface so as to form a right angle with the first surface of the pipe fixing block and constitutes a fitting convex portion, and a second portion of the pipe fixing block that is connected to the other end of the first portion. Projecting outward from the surface and at a predetermined angle with the second part Made more and be third portion is known (see Patent Document 1).
特許文献１記載の雄側継手部材は、真っ直ぐな配管用パイプの一端寄りの部分を引き曲げ型を用いてＬ字状に曲げた後に、パイプ固定ブロックのパイプ挿通穴に通し、治具を用いてＬ字部分をパイプ固定ブロックに固定することによって製造されている（特許文献１の段落００１３〜００１４参照）。
The male joint member described in
しかしながら、特許文献１記載の配管用継手の雄側継手部材の場合、配管用パイプの一端寄りの部分をＬ字状に曲げた後に、パイプ固定ブロックのパイプ挿通穴に通し、治具を用いてＬ字部分をパイプ固定ブロックに固定しているので、パイプを曲げるための型と、パイプをパイプ固定ブロックに固定するための治具が必要となり、製造のために用いる部材の数が増えるとともに、工数が増えて製造コストが高くなるという問題がある。
However, in the case of the male joint member of the piping joint described in
この発明の目的は、上記問題を解決し、製造コストの安い雄側継手部材およびその製造方法を提供することにある。 An object of the present invention is to provide a male joint member that solves the above-described problems and has a low manufacturing cost, and a manufacturing method thereof.
本発明は、上記目的を達成するために以下の態様からなる。 In order to achieve the above object, the present invention comprises the following aspects.
1)円筒状の嵌合凸部を有する雄側継手部材および嵌合凸部が嵌る嵌合凹部を有する雌側継手部材を備えている配管用継手に用いられる雄側継手部材であって、パイプ固定ブロックと、パイプ固定ブロックに固定された配管用パイプとよりなり、パイプ固定ブロックが、平坦な第１面、第１面と所定角度をなす第２面および第１面とは反対側を向いた第３面を有しており、配管用パイプが、パイプ固定ブロックに保持されたエルボ状の第１部分と、第１部分の一端に連なるとともにパイプ固定ブロックの第１面と直角をなすように第１面から外方に突出し、かつ嵌合凸部を構成する第２部分と、第１部分の他端に連なってパイプ固定ブロックの第２面から外方に突出しかつ第２部分と所定の角度をなす第３部分とよりなる雄側継手部材において、
パイプ固定ブロックが、一端が第１面に開口するとともに他端が第３面に開口し、かつ嵌合凸部の軸線と合致した軸線を有する円筒状のパイプ挿通穴と、第３面側に形成され、かつ長手方向の一端がパイプ挿通穴の内周面に開口するとともに同他端が第２面に開口したパイプ収容溝とを備えており、パイプ収容溝の溝底部が部分円筒面状であり、パイプ挿通穴の内周面とパイプ収容溝の溝底部の内面との連接部に曲げ加工用丸みが形成され、配管用パイプの第１部分の曲げ内側部分が曲げ加工用丸みに密着させられている雄側継手部材。
1) A male joint member used for a pipe joint having a male joint member having a cylindrical fitting convex part and a female joint member having a fitting concave part into which the fitting convex part is fitted, The pipe fixing block is composed of a fixing block and a pipe for fixing to the pipe fixing block. The pipe fixing block faces the flat first surface, the second surface forming a predetermined angle with the first surface, and the side opposite to the first surface. The pipe has a third surface, and the piping pipe is connected to the elbow-shaped first portion held by the pipe fixing block and one end of the first portion, and is perpendicular to the first surface of the pipe fixing block. Projecting outward from the first surface and constituting the fitting convex portion, and projecting outward from the second surface of the pipe fixing block to the other end of the first portion and predetermined with the second portion In a male side joint member comprising a third part having an angle of
The pipe fixing block has a cylindrical pipe insertion hole having one end opened on the first surface and the other end opened on the third surface, and having an axis that coincides with the axis of the fitting convex portion, and on the third surface side. And a pipe receiving groove having one end in the longitudinal direction opened in the inner peripheral surface of the pipe insertion hole and the other end opened in the second surface, and the groove bottom of the pipe receiving groove has a partial cylindrical surface shape A round for bending is formed at the connecting portion between the inner peripheral surface of the pipe insertion hole and the inner surface of the groove bottom of the pipe receiving groove, and the bent inner portion of the first portion of the pipe for pipe is in close contact with the round for bending The male joint member being made.
2)配管用パイプの第１部分の管壁がパイプ挿通穴の内周面に突っ張ることによって、第１部分がパイプ固定ブロックに固定されている上記1)記載の雄側継手部材。 2) The male joint member according to 1), wherein the first portion is fixed to the pipe fixing block by stretching the pipe wall of the first portion of the pipe for piping to the inner peripheral surface of the pipe insertion hole.
3)パイプ挿通穴におけるパイプ固定ブロックの第１面側の端部に大径部が形成され、配管用パイプの第１部分における第１面側の端部に、大径部内に嵌め入れられる環状ビードが形成されている上記1)または2)記載の雄側継手部材。 3) A large-diameter portion is formed at the end of the pipe fixing block on the first surface side of the pipe fixing block, and an annular shape is fitted into the end of the first portion of the piping pipe on the first surface side. The male joint member according to 1) or 2), wherein a bead is formed.
4)パイプ固定ブロックの第２面が第１面と直角をなす平坦面であり、第３面が第１面と平行であるとともに第２面と直角をなす平坦面である上記1)〜3)のうちのいずれかに記載の雄側継手部材。 4) The above-mentioned 1) to 3) wherein the second surface of the pipe fixing block is a flat surface perpendicular to the first surface, and the third surface is a flat surface parallel to the first surface and perpendicular to the second surface. ) A male joint member according to any one of the above.
5)上記1)〜4)のうちのいずれかに記載の雄側継手部材を製造する方法であって、
平坦な第１面、第１面と所定角度をなす第２面、および第１面とは反対側を向いた第３面を有するパイプ固定ブロックと、真っ直ぐな配管用パイプとを用意すること、
パイプ固定ブロックの第１面と第３面との間に、一端が第１面に開口するとともに他端が第３面に開口し、かつ第１面と直交する軸線を有する円筒状のパイプ挿通穴を貫通状に形成し、パイプ固定ブロックの第３面側に、長手方向の一端がパイプ挿通穴の内周面に開口するとともに同他端が第２面に開口したパイプ収容溝を形成し、パイプ挿通穴における第１面側の端部に大径部を形成し、パイプ収容溝の溝底部を部分円筒面状にするとともに、パイプ挿通穴の内周面とパイプ収容溝の溝底部の内面との連接部に曲げ加工用丸みを付与しておくこと、
真っ直ぐな配管用パイプの一端寄りの部分に、パイプ固定ブロックの大径部内に嵌め入れられる環状ビードを形成しておくこと、
配管用パイプを、一端側が第１面から突出するとともに、他端側が第３面から突出するようにパイプ固定ブロックのパイプ挿通穴に通し、環状ビードを大径部内に嵌め入れること、
配管用パイプにおけるパイプ固定ブロックの第１面から突出した部分、およびパイプ固定ブロックを、真っ直ぐな配管用パイプの長手方向に移動自在であるとともに、パイプ固定ブロックのパイプ挿通穴の軸線およびパイプ収容溝の溝底部の部分円筒面の軸線と直交する直線の周りに回転可能に配置されたクランプ型によりクランプすること、
配管用パイプにおけるパイプ固定ブロックの第３面から突出した部分を、真っ直ぐな配管用パイプの長手方向の移動のみを許容する押さえ型により保持すること、
ならびにクランプ型を、真っ直ぐな配管用パイプの長手方向に押さえ型から遠ざかるように移動させながら、パイプ固定ブロックのパイプ挿通穴の軸線およびパイプ収容溝の溝底部の部分円筒面の軸線と直交する直線の周りに回転させ、これにより配管用パイプを曲げ加工用丸みを利用して曲げることによって、配管用パイプに、エルボ状の第１部分と、第１部分の一端に連なるとともにパイプ固定ブロックの第１面と直角をなすように第１面から突出した第２部分と、第１部分の他端に連なってパイプ固定ブロックの第１面と所定角度をなす第２面から突出しかつ第２部分と所定の角度をなす第３部分とを形成し、第１部分の曲げ内側部分をパイプ固定ブロックの曲げ加工用丸みに密着させることを特徴とする雄側継手部材の製造方法。
5) A method for producing the male joint member according to any one of 1) to 4) above,
Providing a flat first surface, a second surface forming a predetermined angle with the first surface, and a pipe fixing block having a third surface facing away from the first surface, and a straight pipe for piping;
Cylindrical pipe insertion between the first surface and the third surface of the pipe fixing block, with one end opening in the first surface and the other end opening in the third surface and having an axis perpendicular to the first surface A hole is formed in a penetrating shape, and a pipe receiving groove is formed on the third surface side of the pipe fixing block with one end in the longitudinal direction opening on the inner peripheral surface of the pipe insertion hole and the other end opening on the second surface. The pipe insertion hole is formed with a large-diameter portion at the end on the first surface side, the groove bottom portion of the pipe receiving groove is formed into a partial cylindrical surface, and the inner peripheral surface of the pipe insertion hole and the groove bottom portion of the pipe receiving groove are formed. Add roundness for bending to the connecting part with the inner surface,
Forming an annular bead that fits into the large-diameter portion of the pipe fixing block at a portion near one end of the straight pipe for piping,
Passing the pipe for piping through the pipe insertion hole of the pipe fixing block so that one end side protrudes from the first surface and the other end side protrudes from the third surface, and the annular bead is fitted into the large diameter portion,
The portion of the pipe for projecting from the first surface of the pipe fixing block and the pipe fixing block can be moved in the longitudinal direction of the straight pipe for piping, and the axis of the pipe insertion hole of the pipe fixing block and the pipe receiving groove Clamping with a clamp mold rotatably arranged around a straight line perpendicular to the axis of the partial cylindrical surface at the bottom of the groove,
Holding a portion protruding from the third surface of the pipe fixing block in the pipe for piping by a holding die that allows only movement in the longitudinal direction of the straight pipe for piping;
In addition, while moving the clamp mold away from the holding mold in the longitudinal direction of the straight pipe for piping, a straight line perpendicular to the axis of the pipe insertion hole of the pipe fixing block and the axis of the partial cylindrical surface of the groove bottom of the pipe receiving groove And thereby bending the piping pipe using the rounding for bending, the piping pipe is connected to the elbow-shaped first portion and one end of the first portion and the pipe fixing block first A second portion projecting from the first surface so as to form a right angle with the first surface; a second portion projecting from the second surface connecting to the other end of the first portion and forming a predetermined angle with the first surface of the pipe fixing block; A method for manufacturing a male joint member, wherein a third portion having a predetermined angle is formed, and a bent inner portion of the first portion is brought into close contact with a bending round of a pipe fixing block.
6)配管用パイプを曲げた際に、配管用パイプの第１部分の管壁を、パイプ固定ブロックのパイプ挿通穴の内周面に突っ張らせ、これにより第１部分をパイプ固定ブロックに固定する上記5)記載の雄側継手部材の製造方法。 6) When the piping pipe is bent, the pipe wall of the first portion of the piping pipe is stretched against the inner peripheral surface of the pipe insertion hole of the pipe fixing block, thereby fixing the first portion to the pipe fixing block. 5. A method for producing a male joint member according to 5) above.
7)コンプレッサと、コンデンサと、エバポレータと、エバポレータに流入する冷媒を減圧する減圧器とが配管により接続された冷凍サイクルであって、配管を構成する配管用パイプが、上記1)〜4)のうちのいずれかに記載の雄側継手部材を有する配管用継手によって接続されている雄側継手部材を有する冷凍サイクル。 7) A refrigeration cycle in which a compressor, a condenser, an evaporator, and a decompressor for decompressing the refrigerant flowing into the evaporator are connected by piping, and the piping pipes constituting the piping are as described in 1) to 4) above The refrigerating cycle which has the male side coupling member connected by the coupling for piping which has the male side coupling member in any one of them.
上記1)〜4)の雄側継手部材によれば、パイプ固定ブロックが、一端が第１面に開口するとともに他端が第３面に開口し、かつ嵌合凸部の軸線と合致した軸線を有する円筒状のパイプ挿通穴と、第３面側に形成され、かつ長手方向の一端がパイプ挿通穴の内周面に開口するとともに同他端が第２面に開口したパイプ収容溝とを備えており、パイプ収容溝の溝底部が部分円筒面状であり、パイプ挿通穴の内周面とパイプ収容溝の溝底部の内面との連接部に曲げ加工用丸みが形成され、配管用パイプの第１部分の曲げ内側部分が曲げ加工用丸みに密着させられているので、雄側継手部材を、上記5)の方法により製造することが可能になり、配管用パイプを曲げる専用の引き曲げ型および配管用パイプをパイプ固定ブロックに固定する専用の治具を必要としない。したがって、真っ直ぐな配管用パイプの一端寄りの部分をＬ字状に曲げた後に、パイプ固定ブロックのパイプ挿通穴に通し、ついで治具を用いてＬ字部分をパイプ固定ブロックに固定する特許文献１記載の方法に比べて、製造のために用いる部材の数および工数を低減することが可能になり、製造コストが安くなる。 According to the male joint members of 1) to 4) above, the pipe fixing block has an axis that has one end opened on the first surface and the other end opened on the third surface and coincides with the axis of the fitting convex portion. And a pipe receiving groove formed on the third surface side and having one end in the longitudinal direction opened on the inner peripheral surface of the pipe insertion hole and the other end opened on the second surface. The pipe receiving groove has a partially cylindrical surface, and a bending round is formed at the connecting portion between the inner peripheral surface of the pipe insertion hole and the inner surface of the groove bottom of the pipe receiving groove. Since the bending inner part of the first part of the first part is brought into close contact with the rounding for bending, the male joint member can be manufactured by the method of 5) above, and the exclusive bending for bending the pipe for piping is possible. Requires a special jig to fix the mold and piping pipe to the pipe fixing block Not. Therefore, after a portion near one end of a straight pipe for piping is bent into an L shape, the portion is passed through a pipe insertion hole of a pipe fixing block, and then the L portion is fixed to the pipe fixing block using a jig. Compared with the described method, it becomes possible to reduce the number of members and man-hours used for manufacturing, and the manufacturing cost is reduced.
上記5)および6)の雄側継手部材の製造方法によれば、真っ直ぐな配管用パイプの一端寄りの部分をＬ字状に曲げた後に、パイプ固定ブロックのパイプ挿通穴に通し、ついで治具を用いてＬ字部分をパイプ固定ブロックに固定する特許文献１記載の方法に比べて、製造のために用いる部材の数および工数を低減することが可能になり、製造コストが安くなる。
According to the manufacturing method of the male joint member of the above 5) and 6), after bending a portion near one end of the straight pipe for piping into an L-shape, it is passed through the pipe insertion hole of the pipe fixing block, and then the jig Compared to the method described in
以下、この発明の実施形態を、図面を参照して説明する。この実施形態は、この発明による雄側継手部材を、自動車用空調装置を構成する冷凍サイクルの配管用パイプどうしを接続する配管用継手に使用したものである。 Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the male side coupling member according to the present invention is used for a piping joint for connecting piping pipes of a refrigeration cycle constituting an automotive air conditioner.
なお、以下の説明において、「アルミニウム」という用語には、純アルミニウムの他にアルミニウム合金を含むものとする。また、以下の説明において、図２および図３の上下、左右を上下、左右というものとする。 In the following description, the term “aluminum” includes aluminum alloys in addition to pure aluminum. In the following description, the top and bottom, left and right in FIGS. 2 and 3 are referred to as top and bottom and left and right.
さらに、以下の説明において、「コンデンサ」という用語には、通常のコンデンサの他に凝縮部および過冷却部を有するサブクールコンデンサを含むものとする。 Furthermore, in the following description, the term “capacitor” includes a subcool condenser having a condensing part and a supercooling part in addition to a normal condenser.
図１は車両用空調装置を構成する冷凍サイクルを示し、図２は冷凍サイクルの配管用継手を示し、図３および図４は図２の配管用継手の雄側継手部材に用いられるパイプ固定ブロックを示す。 FIG. 1 shows a refrigeration cycle constituting a vehicle air conditioner, FIG. 2 shows a piping joint of the refrigeration cycle, and FIGS. 3 and 4 are pipe fixing blocks used for a male joint member of the piping joint of FIG. Indicates.
図１において、車両用空調装置を構成する冷凍サイクルは、たとえばフロン系の冷媒が用いられるものであって、コンプレッサ(1)と、凝縮部(3)、凝縮部(3)から流出した冷媒を気相と液相とに分離する受液器(4)および過冷却部(5)を有するコンデンサ(2)と、エバポレータ(6)と、エバポレータ(6)に流入する冷媒を減圧する減圧器としての膨張弁(7)とが配管(8)により接続されたものであり、一端部がコンデンサ(1)の過冷却部(5)の冷媒出口に接続された第１の配管用パイプ(P1)と、一端部が膨張弁(7)に接続された第２の配管用パイプ(P2)とが、配管用継手(10)により内部通路どうしが通じるように接続されている。 In FIG. 1, the refrigeration cycle constituting the vehicle air conditioner uses, for example, a chlorofluorocarbon refrigerant. The refrigerant flowing out of the compressor (1), the condensing unit (3), and the condensing unit (3) is used. Capacitor (2) having a receiver (4) and a supercooling section (5) that separates into a gas phase and a liquid phase, an evaporator (6), and a decompressor that depressurizes the refrigerant flowing into the evaporator (6) The first piping pipe (P1) having one end connected to the refrigerant outlet of the subcooling section (5) of the condenser (1). And a second piping pipe (P2) having one end connected to the expansion valve (7) are connected by a piping joint (10) so that the internal passages are communicated with each other.
図２に示すように、両配管用パイプ(P1)(P2)どうしを接続する配管用継手(10)は、下方に突出した円筒状の嵌合凸部(12)を有する雄側継手部材(11)と、嵌合凸部(12)が嵌る円筒穴状の嵌合凹部(14)を有する雌側継手部材(13)とを備えている。 As shown in FIG. 2, the pipe joint (10) connecting the pipes for both pipes (P1) and (P2) is a male joint member (12) having a cylindrical fitting projection (12) protruding downward. 11) and a female joint member (13) having a fitting recess (14) having a cylindrical hole shape into which the fitting projection (12) is fitted.
雄側継手部材(11)は金属、ここではアルミニウムから形成されたパイプ固定ブロック(15)と、パイプ固定ブロック(15)に固定されたアルミニウム製の第１配管用パイプ(P1)とよりなる。 The male joint member (11) includes a pipe fixing block (15) made of metal, here aluminum, and an aluminum first piping pipe (P1) fixed to the pipe fixing block (15).
図２〜図４に示すように、パイプ固定ブロック(15)の左側部分に、下方を向いた平坦な第１面(16)、第１面(16)と直角をなしかつ左方を向いた平坦な第２面(17)、および第１面(16)と平行であるとともに第２面(17)と直角をなし、かつ上方を向いた平坦な第３面(18)（第１面(16)とは反対側を向いた第３面(18)）が設けられている。パイプ固定ブロック(15)の右側部分に、下方を向きかつ第１面(16)と面一に連なった平坦な第４面(19)、および第４面(19)と平行であるとともに上方を向き、かつ第３面(18)よりも低くなった第５面(21)が設けられている。パイプ固定ブロック(15)の左側部分には、一端が第１面(16)に開口するとともに他端が第３面(18)に開口し、かつ嵌合凸部(12)の軸線と合致した軸線を有する円筒状のパイプ挿通穴(22)と、第３面(18)側に形成され、かつ長手方向の一端（右端）がパイプ挿通穴(22)の内周面に開口するとともに同他端が第２面(17)に開口したＵ字状のパイプ収容溝(23)とが形成されている。パイプ固定ブロック(15)のパイプ挿通穴(22)における第１面(16)側の端部（下端部）に大径部(24)が同心状に形成されている。パイプ固定ブロック(15)のパイプ収容溝(23)の溝底部(23a)は部分円筒面状であり、溝底部(23a)の軸線はパイプ挿通穴(22)の軸線と直交している。また、パイプ固定ブロック(15)におけるパイプ挿通穴(22)の内周面とパイプ収容溝(23)の溝底部(23a)の内面との連接部に曲げ加工用丸み(25)が形成されている。また、パイプ固定ブロック(15)の右側部分には、一端が第４面(19)に開口するとともに他端が第５面(21)に開口し、かつパイプ挿通穴(22)の軸線と平行な軸線を有する円筒状のボルト挿通穴(26)が形成されている。 As shown in FIGS. 2 to 4, on the left side of the pipe fixing block (15), a flat first surface (16) facing downward and a right angle with the first surface (16) and facing left A flat second surface (17) and a flat third surface (18) parallel to the first surface (16) and perpendicular to the second surface (17) and facing upward (first surface ( A third surface (18)) facing away from 16) is provided. A flat fourth surface (19) that faces downward and is flush with the first surface (16), and is parallel to the fourth surface (19) and on the right side of the pipe fixing block (15). A fifth surface (21) that is oriented and lower than the third surface (18) is provided. At the left side of the pipe fixing block (15), one end opens on the first surface (16) and the other end opens on the third surface (18), and coincides with the axis of the fitting convex portion (12). A cylindrical pipe insertion hole (22) having an axis, and one end (right end) in the longitudinal direction that opens on the inner peripheral surface of the pipe insertion hole (22) are formed on the third surface (18) side. A U-shaped pipe receiving groove (23) having an end opened on the second surface (17) is formed. A large diameter portion (24) is formed concentrically at the end (lower end) on the first surface (16) side of the pipe insertion hole (22) of the pipe fixing block (15). The groove bottom (23a) of the pipe receiving groove (23) of the pipe fixing block (15) has a partial cylindrical surface shape, and the axis of the groove bottom (23a) is orthogonal to the axis of the pipe insertion hole (22). In addition, a rounding for bending (25) is formed at the connecting portion between the inner peripheral surface of the pipe insertion hole (22) in the pipe fixing block (15) and the inner surface of the groove bottom (23a) of the pipe receiving groove (23). Yes. The right side of the pipe fixing block (15) has one end opened on the fourth surface (19) and the other end opened on the fifth surface (21) and parallel to the axis of the pipe insertion hole (22). A cylindrical bolt insertion hole (26) having an arbitrary axis is formed.
図２に示すように、第１配管用パイプ(P1)は、パイプ固定ブロック(15)に保持され、かつ一端が下方に開口するとともに他端が左方に開口したエルボ状の第１部分(27)と、第１部分(27)の一端に連なるとともにパイプ固定ブロック(15)の第１面(16)と直角をなすように第１面(16)から下方に突出した第２部分(28)と、第１部分(27)の他端に連なってパイプ固定ブロック(15)の第２面(17)から左方に突出しかつ第２部分(28)と直角をなす第３部分(29)とよりなる。第１配管用パイプ(P1)の第１部分(27)におけるパイプ固定ブロック(15)の第１面(16)側の端部に、大径部(24)内に嵌め入れられる環状ビード(31)が形成されている。第１配管用パイプ(P1)の第１部分(27)の曲げ内側部分がパイプ固定ブロック(15)の曲げ加工用丸み(25)に密着させられており、第１部分(27)の管壁がパイプ挿通穴(22)の内周面に突っ張ることによって、第１部分(27)がパイプ固定ブロック(15)に固定されている。第１配管用パイプ(P1)の第２部分(28)の外径は、第１部分(27)および第３部分(29)の外径よりも若干大きくなっており、第２部分(28)が嵌合凸部(12)となっている。嵌合凸部(12)の外周面にはＯリング装着用の環状溝(32)が全周にわたって形成されており、環状溝(32)内に、雄側継手部材(11)の嵌合凸部(12)の外周面と、雌側継手部材(13)の嵌合凹部(14)の内周面との間をシールするＯリング(33)が装着されている。 As shown in FIG. 2, the first piping pipe (P1) is held by a pipe fixing block (15), and has an elbow-shaped first portion having one end opened downward and the other opened leftward ( 27) and a second portion (28) projecting downward from the first surface (16) so as to be connected to one end of the first portion (27) and to be perpendicular to the first surface (16) of the pipe fixing block (15). ) And a third portion (29) which is connected to the other end of the first portion (27) and protrudes leftward from the second surface (17) of the pipe fixing block (15) and is perpendicular to the second portion (28). And more. An annular bead (31) fitted into the large-diameter portion (24) at the end on the first surface (16) side of the pipe fixing block (15) in the first portion (27) of the first piping pipe (P1). ) Is formed. The bent inner portion of the first portion (27) of the first piping pipe (P1) is in close contact with the bending round (25) of the pipe fixing block (15), and the pipe wall of the first portion (27) The first portion (27) is fixed to the pipe fixing block (15) by protruding from the inner peripheral surface of the pipe insertion hole (22). The outer diameter of the second portion (28) of the first piping pipe (P1) is slightly larger than the outer diameter of the first portion (27) and the third portion (29), and the second portion (28). Is a fitting convex part (12). An annular groove (32) for mounting an O-ring is formed on the entire outer peripheral surface of the fitting convex portion (12), and the fitting convexity of the male joint member (11) is formed in the annular groove (32). An O-ring (33) that seals between the outer peripheral surface of the portion (12) and the inner peripheral surface of the fitting recess (14) of the female joint member (13) is mounted.
雌側継手部材(13)は金属、ここではアルミニウムから形成されたパイプ固定ブロック(34)と、パイプ固定ブロック(34)に固定されたアルミニウム製の第２配管用パイプ(P2)とよりなる。 The female joint member (13) includes a pipe fixing block (34) made of metal, here aluminum, and an aluminum second pipe (P2) fixed to the pipe fixing block (34).
パイプ固定ブロック(34)の左側部分に、上下方向にのびる段付きのパイプ挿入穴(35)が貫通状に形成されている。パイプ固定ブロック(34)の右側部分に、上下方向にのびるめねじ穴(36)が形成されている。 A stepped pipe insertion hole (35) extending in the vertical direction is formed in a penetrating manner in the left portion of the pipe fixing block (34). A female screw hole (36) extending in the vertical direction is formed in the right portion of the pipe fixing block (34).
第２配管用パイプ(P2)は、上端部がパイプ挿入穴(35)内に挿入された後、パイプ挿入穴(35)の内周面に密着するように拡管されることによって、パイプ固定ブロック(34)に固定されている。第２配管用パイプ(P2)におけるパイプ挿入穴(35)の下端部を除いた大径部内に位置する部分の内部が、上方に開口しかつ内周面が円筒面となされた嵌合凹部(14)となっている。 The second piping pipe (P2) has its upper end inserted into the pipe insertion hole (35) and is then expanded so as to be in close contact with the inner peripheral surface of the pipe insertion hole (35), so that the pipe fixing block It is fixed to (34). In the second piping pipe (P2), the inside of the portion located in the large-diameter portion excluding the lower end portion of the pipe insertion hole (35) is opened upward, and the fitting concave portion (the inner peripheral surface is a cylindrical surface) 14).
雄側継手部材(11)と雌側継手部材(13)とは、次のようにして相互に連結されて配管用継手(10)が形成されている。すなわち、雌側継手部材(13)の嵌合凹部(14)内に雄側継手部材(11)の嵌合凸部(12)が嵌め入れられ、ボルト(37)が雄側継手部材(11)のボルト挿通穴(26)に上方から通されるとともに、雌側継手部材(13)のめねじ穴(36)にねじ嵌められることによって、雄側継手部材(11)と雌側継手部材(13)とが相互に連結されて配管用継手(10)が形成されており、これにより両配管用パイプ(P1)(P2)が冷凍サイクル用配管継手(10)を介して連通状に接続されている。 The male joint member (11) and the female joint member (13) are connected to each other as follows to form a pipe joint (10). That is, the fitting convex part (12) of the male joint member (11) is fitted into the fitting concave part (14) of the female joint member (13), and the bolt (37) is connected to the male joint member (11). The male joint member (11) and the female joint member (13) are threaded into the female threaded hole (36) of the female joint member (13) from above through the bolt insertion hole (26) of the female side joint member (13). ) Are connected to each other to form a pipe joint (10), whereby the pipes for both pipes (P1) and (P2) are connected in a continuous manner via the pipe joint for refrigeration cycle (10). Yes.
次に、雄側継手部材(11)の製造方法について、図５および図６を参照して説明する。 Next, the manufacturing method of the male side coupling member (11) is demonstrated with reference to FIG. 5 and FIG.
まず、第１〜第５面(16)(17)(18)(19)(21)を有するパイプ固定ブロック(15)と、真っ直ぐな第１配管用パイプ(P1)とを用意する。パイプ固定ブロック(15)に、パイプ挿通穴(22)、パイプ収容溝(23)、大径部(24)、曲げ加工用丸み(25)およびボルト挿通穴(26)を形成しておく。また、真っ直ぐな第１配管用パイプ(P1)の一端寄りの部分に、パイプ固定ブロック(15)の大径部(24)内に嵌め入れられる環状ビード(31)を形成するとともに、環状ビード(31)よりも前記一端側の外径を他の部分の外径よりも大径とし、さらに当該大径部(Pa)の外周面に環状溝(32)を形成しておく。 First, a pipe fixing block (15) having first to fifth surfaces (16), (17), (18), (19) and (21) and a straight first piping pipe (P1) are prepared. A pipe insertion hole (22), a pipe receiving groove (23), a large diameter part (24), a rounding for bending (25), and a bolt insertion hole (26) are formed in the pipe fixing block (15). In addition, an annular bead (31) that is fitted into the large-diameter portion (24) of the pipe fixing block (15) is formed in a portion near one end of the straight first piping pipe (P1), and the annular bead ( The outer diameter on the one end side from 31) is made larger than the outer diameter of the other part, and an annular groove (32) is formed on the outer peripheral surface of the large diameter part (Pa).
ついで、大径部(Pa)が第１面(16)から突出するとともに、大径部(Pa)が形成された側と反対側の端部が第３面(18)から突出するように、第１配管用パイプ(P1)を、大径部(Pa)が形成された側と反対側の端部からパイプ固定ブロック(15)のパイプ挿通穴(22)に通し、環状ビード(31)を大径部(24)内に嵌め入れる。 Next, the large diameter portion (Pa) protrudes from the first surface (16) and the end opposite to the side on which the large diameter portion (Pa) is formed protrudes from the third surface (18). Pass the first piping pipe (P1) through the pipe insertion hole (22) of the pipe fixing block (15) from the end opposite to the side where the large diameter part (Pa) is formed, and insert the annular bead (31). Fit into the large diameter part (24).
ついで、図５に示すように、第１配管用パイプ(P1)におけるパイプ固定ブロック(15)の第１面(16)から突出した大径部(Pa)、およびパイプ固定ブロック(15)を、図５の左右方向（真っ直ぐな第１配管用パイプ(P1)の長手方向）に移動自在であるとともに、パイプ挿通穴(22)の軸線およびパイプ収容溝(23)の溝底部(23a)の部分円筒面の軸線と直交する直線の周りに回転可能に配置されたクランプ型(38)によりクランプする。また、第１配管用パイプ(P1)におけるパイプ固定ブロック(15)の第３面(18)から突出した部分を、真っ直ぐな第１配管用パイプ(P1)の長手方向の移動のみを許容する押さえ型(39)により保持する。 Next, as shown in FIG. 5, the large-diameter portion (Pa) protruding from the first surface (16) of the pipe fixing block (15) in the first piping pipe (P1), and the pipe fixing block (15), It is movable in the left-right direction in FIG. 5 (longitudinal direction of the straight first piping pipe (P1)), and the axis of the pipe insertion hole (22) and the groove bottom (23a) of the pipe receiving groove (23) It clamps with the clamp type | mold (38) arrange | positioned rotatably around the straight line orthogonal to the axis line of a cylindrical surface. In addition, a portion of the first piping pipe (P1) protruding from the third surface (18) of the pipe fixing block (15) is a holder that allows only the straight movement of the first piping pipe (P1) in the longitudinal direction. Hold by mold (39).
その後、クランプ型(38)を、図５の右方（真っ直ぐな第１配管用パイプ(P1)の長手方向に押さえ型(39)から遠ざかる方向）に移動させながら、パイプ固定ブロック(15)のパイプ挿通穴(22)の軸線およびパイプ収容溝(23)の溝底部(23a)の部分円筒面の軸線と直交する直線の周りに回転させ、これにより第１配管用パイプ(P1)を曲げ加工用丸み(25)を利用して曲げることによって、図６に示すように、第１配管用パイプ(P1)に、エルボ状の第１部分(27)と、第１部分(27)の一端に連なるとともにパイプ固定ブロック(15)の第１面(16)と直角をなすように第１面(16)から突出した第２部分(28)と、第１部分(27)の他端に連なってパイプ固定ブロック(15)の第１面(16)と所定角度をなす第２面(17)から突出しかつ第２部分(28)と所定の角度をなす第３部分(29)とを形成し、第１部分(27)の曲げ内側部分をパイプ固定ブロック(15)の曲げ加工用丸み(25)に密着させる。第１配管用パイプ(P1)を曲げた際に、第１配管用パイプ(P1)の第１部分(27)の管壁を、パイプ固定ブロック(15)のパイプ挿通穴(22)の内周面に突っ張らせ、これにより第１部分(27)をパイプ固定ブロック(15)に固定する。こうして、雄側継手部材(11)が製造される。 After that, while moving the clamp die (38) to the right of FIG. 5 (in the direction of moving away from the presser die (39) in the longitudinal direction of the straight first piping pipe (P1)), the pipe fixing block (15) Rotate around the axis of the pipe insertion hole (22) and the axis of the partial cylindrical surface of the groove bottom (23a) of the pipe receiving groove (23), thereby bending the first piping pipe (P1) As shown in FIG. 6, the first pipe (P1), elbow-shaped first part (27), and one end of the first part (27) are bent by using the roundness (25) for bending. A second portion (28) projecting from the first surface (16) so as to be perpendicular to the first surface (16) of the pipe fixing block (15) and the other end of the first portion (27) Forming a first portion (16) of the pipe fixing block (15) from a second surface (17) having a predetermined angle and a second portion (28) and a third portion (29) having a predetermined angle; 1st part (2 The bending inner part of 7) is brought into close contact with the bending roundness (25) of the pipe fixing block (15). When the first piping pipe (P1) is bent, the pipe wall of the first portion (27) of the first piping pipe (P1) is connected to the inner periphery of the pipe insertion hole (22) of the pipe fixing block (15). The first portion (27) is fixed to the pipe fixing block (15). In this way, the male joint member (11) is manufactured.
図７は、この発明による雄側継手部材の変形例を示す。 FIG. 7 shows a modification of the male joint member according to the present invention.
図７に示す雄側継手部材(40)のパイプ固定ブロック(41)の場合、一端が第４面(19)に開口するとともに他端が第５面(21)に開口したボルト挿通穴(26)が形成された部分(42)は、図７に実線で示すように、平面から見て第１配管用パイプ(P1)の第３部分(29)と９０度をなす位置に設けられている。なお、この部分(42)は、図７に実線で示す位置と鎖線で示す位置との間の角度範囲Ｘ、すなわち平面から見て第１配管用パイプ(P1)の第３部分(29)と９０〜２７０度をなす位置に設けることが可能である。 In the case of the pipe fixing block (41) of the male joint member (40) shown in FIG. 7, a bolt insertion hole (26 having one end opened in the fourth surface (19) and the other end opened in the fifth surface (21). ) Is formed at a position that makes 90 degrees with the third portion (29) of the first piping pipe (P1) when viewed from above, as shown by the solid line in FIG. . In addition, this part (42) is the angle range X between the position shown by the solid line in FIG. 7 and the position shown by the chain line, that is, the third part (29) of the first piping pipe (P1) when viewed from the plane. It can be provided at a position of 90 to 270 degrees.
この発明による雄側継手部材は、車両に搭載される空調装置を構成する冷凍サイクルにおいて、配管を形成する配管用パイプどうしを接続する配管用継手に好適に用いられる。 The male joint member according to the present invention is suitably used for a pipe joint that connects pipes that form a pipe in a refrigeration cycle that constitutes an air conditioner mounted on a vehicle.
(10)：配管用継手
(11)(40)：雄側継手部材
(12)：嵌合凸部
(13)：雌側継手部材
(14)：嵌合凹部
(15)(41)：パイプ固定ブロック
(16)：第１面
(17)：第２面
(18)：第３面
(22)：パイプ挿通穴
(23)：パイプ収容溝
(23a)：溝底部
(24)：大径部
(25)：曲げ加工用丸み
(27)：第１部分
(28)：第２部分
(29)：第３部分
(31)：環状ビード
(17)(31)：回り止め部
(18)(32)：広がり部
(21)(33)：嵌入部
(38)：クランプ型
(39)：押さえ型
(P1)：第１配管用パイプ
(10): Piping joint
(11) (40): Male joint member
(12): Mating convex
(13): Female joint member
(14): Fitting recess
(15) (41): Pipe fixing block
(16): First side
(17): Second side
(18): Third side
(22): Pipe insertion hole
(23): Pipe receiving groove
(23a): Groove bottom
(24): Large diameter part
(25): Rounding for bending
(27): 1st part
(28): Second part
(29): Third part
(31): Annular bead
(17) (31): Non-rotating part
(18) (32): Spreading part
(21) (33): Insertion part
(38): Clamp type
(39): Presser type
(P1): Pipe for first piping
Claims (7)
パイプ固定ブロックが、一端が第１面に開口するとともに他端が第３面に開口し、かつ嵌合凸部の軸線と合致した軸線を有する円筒状のパイプ挿通穴と、第３面側に形成され、かつ長手方向の一端がパイプ挿通穴の内周面に開口するとともに同他端が第２面に開口したパイプ収容溝とを備えており、パイプ収容溝の溝底部が部分円筒面状であり、パイプ挿通穴の内周面とパイプ収容溝の溝底部の内面との連接部に曲げ加工用丸みが形成され、配管用パイプの第１部分の曲げ内側部分が曲げ加工用丸みに密着させられている雄側継手部材。 A male side joint member used for a pipe joint having a male side joint member having a cylindrical fitting convex part and a female side joint member having a fitting concave part into which the fitting convex part fits, and a pipe fixing block And a pipe for pipe fixed to the pipe fixing block. The pipe fixing block is a flat first surface, a second surface forming a predetermined angle with the first surface, and a second surface facing the opposite side of the first surface. The pipe has a first elbow-shaped part held by the pipe fixing block, and is connected to one end of the first part and is perpendicular to the first surface of the pipe fixing block. A second portion projecting outward from one surface and constituting a fitting convex portion, and projecting outward from the second surface of the pipe fixing block continuously to the other end of the first portion and a predetermined angle with the second portion In the male joint member comprising the third part forming
The pipe fixing block has a cylindrical pipe insertion hole having one end opened on the first surface and the other end opened on the third surface, and having an axis that coincides with the axis of the fitting convex portion, and on the third surface side. And a pipe receiving groove having one end in the longitudinal direction opened in the inner peripheral surface of the pipe insertion hole and the other end opened in the second surface, and the groove bottom of the pipe receiving groove has a partial cylindrical surface shape A round for bending is formed at the connecting portion between the inner peripheral surface of the pipe insertion hole and the inner surface of the groove bottom of the pipe receiving groove, and the bent inner portion of the first portion of the pipe for pipe is in close contact with the round for bending The male joint member being made.
平坦な第１面、第１面と所定角度をなす第２面、および第１面とは反対側を向いた第３面を有するパイプ固定ブロックと、真っ直ぐな配管用パイプとを用意すること、
パイプ固定ブロックの第１面と第３面との間に、一端が第１面に開口するとともに他端が第３面に開口し、かつ第１面と直交する軸線を有する円筒状のパイプ挿通穴を貫通状に形成し、パイプ固定ブロックの第３面側に、長手方向の一端がパイプ挿通穴の内周面に開口するとともに同他端が第２面に開口したパイプ収容溝を形成し、パイプ挿通穴における第１面側の端部に大径部を形成し、パイプ収容溝の溝底部を部分円筒面状にするとともに、パイプ挿通穴の内周面とパイプ収容溝の溝底部の内面との連接部に曲げ加工用丸みを付与しておくこと、
真っ直ぐな配管用パイプの一端寄りの部分に、パイプ固定ブロックの大径部内に嵌め入れられる環状ビードを形成しておくこと、
配管用パイプを、一端側が第１面から突出するとともに、他端側が第３面から突出するようにパイプ固定ブロックのパイプ挿通穴に通し、環状ビードを大径部内に嵌め入れること、
配管用パイプにおけるパイプ固定ブロックの第１面から突出した部分、およびパイプ固定ブロックを、真っ直ぐな配管用パイプの長手方向に移動自在であるとともに、パイプ固定ブロックのパイプ挿通穴の軸線およびパイプ収容溝の溝底部の部分円筒面の軸線と直交する直線の周りに回転可能に配置されたクランプ型によりクランプすること、
配管用パイプにおけるパイプ固定ブロックの第３面から突出した部分を、真っ直ぐな配管用パイプの長手方向の移動のみを許容する押さえ型により保持すること、
ならびにクランプ型を、真っ直ぐな配管用パイプの長手方向に押さえ型から遠ざかるように移動させながら、パイプ固定ブロックのパイプ挿通穴の軸線およびパイプ収容溝の溝底部の部分円筒面の軸線と直交する直線の周りに回転させ、これにより配管用パイプを曲げ加工用丸みを利用して曲げることによって、配管用パイプに、エルボ状の第１部分と、第１部分の一端に連なるとともにパイプ固定ブロックの第１面と直角をなすように第１面から突出した第２部分と、第１部分の他端に連なってパイプ固定ブロックの第１面と所定角度をなす第２面から突出しかつ第２部分と所定の角度をなす第３部分とを形成し、第１部分の曲げ内側部分をパイプ固定ブロックの曲げ加工用丸みに密着させることを特徴とする雄側継手部材の製造方法。 A method for producing a male joint member according to any one of claims 1 to 4,
Providing a flat first surface, a second surface forming a predetermined angle with the first surface, and a pipe fixing block having a third surface facing away from the first surface, and a straight pipe for piping;
Cylindrical pipe insertion between the first surface and the third surface of the pipe fixing block, with one end opening in the first surface and the other end opening in the third surface and having an axis perpendicular to the first surface A hole is formed in a penetrating shape, and a pipe receiving groove is formed on the third surface side of the pipe fixing block with one end in the longitudinal direction opening on the inner peripheral surface of the pipe insertion hole and the other end opening on the second surface. The pipe insertion hole is formed with a large-diameter portion at the end on the first surface side, the groove bottom portion of the pipe receiving groove is formed into a partial cylindrical surface, and the inner peripheral surface of the pipe insertion hole and the groove bottom portion of the pipe receiving groove are formed. Add roundness for bending to the connecting part with the inner surface,
Forming an annular bead that fits into the large-diameter portion of the pipe fixing block at a portion near one end of the straight pipe for piping,
Passing the pipe for piping through the pipe insertion hole of the pipe fixing block so that one end side protrudes from the first surface and the other end side protrudes from the third surface, and the annular bead is fitted into the large diameter portion,
The portion of the pipe for projecting from the first surface of the pipe fixing block and the pipe fixing block can be moved in the longitudinal direction of the straight pipe for piping, and the axis of the pipe insertion hole of the pipe fixing block and the pipe receiving groove Clamping with a clamping die rotatably arranged around a straight line perpendicular to the axis of the partial cylindrical surface at the bottom of the groove,
Holding a portion protruding from the third surface of the pipe fixing block in the pipe for piping by a holding die that allows only movement in the longitudinal direction of the straight pipe for piping;
In addition, while moving the clamp mold away from the holding mold in the longitudinal direction of the straight pipe for piping, a straight line perpendicular to the axis of the pipe insertion hole of the pipe fixing block and the axis of the partial cylindrical surface of the groove bottom of the pipe receiving groove And thereby bending the piping pipe using the rounding for bending, the piping pipe is connected to the elbow-shaped first portion and one end of the first portion and the pipe fixing block first A second portion projecting from the first surface so as to form a right angle with the first surface; a second portion projecting from the second surface connecting to the other end of the first portion and forming a predetermined angle with the first surface of the pipe fixing block; A method for manufacturing a male joint member, wherein a third portion having a predetermined angle is formed, and a bent inner portion of the first portion is brought into close contact with a bending round of a pipe fixing block.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011201337A JP2013061047A (en) | 2011-09-15 | 2011-09-15 | Male side joint member, method for manufacturing the same, and refrigerating cycle having male side joint member |
| CN 201220477710 CN202791102U (en) | 2011-09-15 | 2012-09-14 | Positive side connector component and refrigeration cycle system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011201337A JP2013061047A (en) | 2011-09-15 | 2011-09-15 | Male side joint member, method for manufacturing the same, and refrigerating cycle having male side joint member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2013061047A true JP2013061047A (en) | 2013-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011201337A Pending JP2013061047A (en) | 2011-09-15 | 2011-09-15 | Male side joint member, method for manufacturing the same, and refrigerating cycle having male side joint member |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2013061047A (en) |
| CN (1) | CN202791102U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6744842B2 (en) * | 2017-06-06 | 2020-08-19 | 三菱日立パワーシステムズ株式会社 | Hollow metal component for rotating electric machine stator, rotating electrical machine, and method for manufacturing hollow metal component |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5853201A (en) * | 1996-01-17 | 1998-12-29 | Nippondenso Co., Ltd. | Coolant pipe connecting coupling |
| JP2004036944A (en) * | 2002-07-01 | 2004-02-05 | Denso Corp | Piping joint structure and its manufacturing method |
| JP2009144752A (en) * | 2007-12-11 | 2009-07-02 | Denso Corp | Refrigerant pipe and its manufacturing method |
-
2011
- 2011-09-15 JP JP2011201337A patent/JP2013061047A/en active Pending
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2012
- 2012-09-14 CN CN 201220477710 patent/CN202791102U/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5853201A (en) * | 1996-01-17 | 1998-12-29 | Nippondenso Co., Ltd. | Coolant pipe connecting coupling |
| JP2004036944A (en) * | 2002-07-01 | 2004-02-05 | Denso Corp | Piping joint structure and its manufacturing method |
| JP2009144752A (en) * | 2007-12-11 | 2009-07-02 | Denso Corp | Refrigerant pipe and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202791102U (en) | 2013-03-13 |
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