JP4128456B2 - Pressure control valve - Google Patents

Pressure control valve Download PDF

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Publication number
JP4128456B2
JP4128456B2 JP2003003234A JP2003003234A JP4128456B2 JP 4128456 B2 JP4128456 B2 JP 4128456B2 JP 2003003234 A JP2003003234 A JP 2003003234A JP 2003003234 A JP2003003234 A JP 2003003234A JP 4128456 B2 JP4128456 B2 JP 4128456B2
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Japan
Prior art keywords
outer peripheral
control valve
solder
pressure control
housing
Prior art date
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Expired - Fee Related
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JP2003003234A
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Japanese (ja)
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JP2004218443A (en
Inventor
秀樹 ▲高▼窪
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TGK Co Ltd
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TGK Co Ltd
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Description

【0001】
【発明の属する技術分野】
この発明は、感圧部材の変位に応じて弁開度を制御する圧力制御弁に関し、特に、車輌用エアコンの可変容量圧縮機に設けられて吐出される冷媒ガスの容量を制御する内部可変制御式の圧力制御弁に関する。
【0002】
【従来の技術】
車輌用エアコンでは、動力源であるエンジンの回転数が一定でないことから、一般的に冷凍負荷に応じた冷凍能力の制御は、圧縮機の容量を可変にする可変容量圧縮機が用いられている。可変容量圧縮機で容量を変化させる方法として、制御を圧縮機の中だけで行う内部可変制御方式(例えば、特許文献1参照。)と、各種センサ出力の演算結果に基づいて電気的に制御する外部可変制御方式とがある。ここでは、内部可変制御方式の制御を行う可変容量圧縮機用制御弁について説明する。
【0003】
図4は、可変容量圧縮機用の従来の圧力制御弁のパワーエレメントを示す断面図である。この図4は、図示しない弁部と組み合わせて圧力制御弁を構成するパワーエレメントを逆さにした状態で示している。この可変容量圧縮機用の圧力制御弁は、弁部と、この弁部を駆動制御するパワーエレメント1とから構成され、パワーエレメント1は、アッパーハウジング2にばね3、ばね受け用のディスク4、薄膜状のダイヤフラム5及びディスク6を載せて、弁部のボディ(図示せず)に対してねじ込まれるロアハウジング7が、ダイヤフラム5の外周縁部を挾持した状態でかしめ加工により固着されるものである。ロアハウジング7には、圧力制御弁を圧縮機ハウジング内に収容する場合の基準となる取付け基準面7aがその外周部分に形成されている。また、アッパーハウジング2には、そのかしめ部2aとの間で保持されるダイヤフラム5によって、密閉された空間が画成される。ディスク6は、底面部6aと外周起立部6bとからなるものであって、底面部6aの中央には弁体駆動用のシャフトの一端を受け入れるための窪み6cが形成されている。ばね受け用のディスク4も、ディスク6と同じ部材が使用されている。
【0004】
ここで、ディスク6の底面部6aは、所定面積でダイヤフラム5の中央部分に当接している。また、ディスク6の外周起立部6bは、ロアハウジング7の拡径された内周面によりガイドされ、段部に当接されてダイヤフラム5の変位を規制している。ばね受け用のディスク4は、ばね3により底面部4aがダイヤフラム5に対して圧接した状態で変位され、同じく外周起立部4bがアッパーハウジング2の内周面に形成された段部に当接されてダイヤフラム5の変位を規制している。
【0005】
このように、この圧力制御弁は、アッパーハウジング2にばね3、ダイヤフラム5、ディスク4,6を組み込んだ後、ダイヤフラム5が挾持された状態でロアハウジング7の鍔状の外周縁部が全周にわたりかしめ部2aを内側にかしめてアッパーハウジング2、ダイヤフラム5及びロアハウジング7の外周を機械的に固着し、アッパーハウジング2のかしめ部2aとロアハウジング7の鍔状外周縁部との間に形成される環状のはんだ封止部にはんだ盛りされる。これにより、パワーエレメント1は気密封止構造で組み立てられる。ロアハウジング7の外周部分にある鍔状外周縁部と、アッパーハウジング2のかしめ部2aとからなるはんだ封止部に、はんだ層8を形成することで、全周が気密封止され、アッパーハウジング2及びダイヤフラム5によって囲まれた真空室が気密に構成される。その結果、圧力制御弁はダイヤフラム5の変位に応じて弁開度を制御する際に、温度及び大気圧の変化に影響されないようにしている。
【0006】
【特許文献1】
特開2001−349279号公報(段落番号〔0011〕〜〔0014〕、図1)
【0007】
【発明が解決しようとする課題】
従来の圧力制御弁のパワーエレメント1では、ロアハウジング7の外周部分にある鍔状外周縁部とアッパーハウジング2のかしめ部2aとからなる環状のはんだ封止部をはんだ層8により気密封止し、真空室を画成する際に、実際にはんだ封止部に供給されるはんだ量が減ってしまうと、はんだ封止部におけるシール性能にばらつきが生じる。一般に、はんだ封止部の信頼性が低下しないように、通常のパワーエレメント1では、必要以上のはんだ量が使用される。また、アッパーハウジング2をかしめ加工したときの固着部の形状によっては、はんだのはみ出し量にばらつきが生じる。そのために、溶けたはんだが封止部以外に回り込んで、はんだ封止部に対して所定の段差をなす取付け基準面7aの上まではみ出る場合があった。
【0008】
すなわち、従来の圧力制御弁では取付け基準面などのはんだ封止部以外の部分にまではんだがはみ出しているものがあって、圧力制御弁を圧縮機ハウジング内に収容するときに、はんだのはみ出しによる寸法変化で、取付けができないなどの不具合が生じていた。しかし、取付け基準面へのはんだはみ出しをなくそうとして、はんだの量を減らすと、十分な気密封止ができなくなるという問題があった。
【0009】
この発明の目的は、真空室を画成するハウジングとダイヤフラムとの固着をはんだ付けによって封止する際に、はんだ封止部から取付け基準面にはんだが乗り上げないようにした圧力制御弁を提供することにある。
【0010】
【課題を解決するための手段】
上記目的を達成するために、感圧部材の外周部を第1及び第2のハウジングで固着しはんだで封止するようにした圧力制御弁において、前記第1のハウジングの外周部分に形成された鍔状外周縁部に前記感圧部材の外周部を挟んで前記第2のハウジングのかしめ部を内側にかしめ加工することによって形成されるはんだ封止部から前記第1のハウジングの外周部分に形成された取付け基準面に至る外周面が前記取付け基準面に対して90°未満の角度に形成されていることを特徴とする圧力制御弁が提供される。
【0011】
この圧力制御弁では、はんだ封止部にてはんだを溶融したときに、傾斜されている第1のハウジングの外周面がはんだ封止部から取付け基準面へのはんだのはみ出しを困難にし、安定したはんだ付けが可能になって、圧力制御弁の信頼性が向上する。
【0012】
【発明の実施の形態】
以下、この発明の実施の形態について、図面を参照して説明する。
図1は、この発明の実施の形態に係る可変容量圧縮機用制御弁のパワーエレメントを示す断面図、図2は、圧縮機ハウジング内に収容された図1の可変容量圧縮機用制御弁を示す断面図である。図1において、パワーエレメント1は図4に示す従来のものと対応する部分に同一の番号を付けてある。
【0013】
このパワーエレメント1が図4のものと異なる点は、ロアハウジング7の外周部分に形成された鍔状外周縁部から取付け基準面7aに至る外周面7bの傾斜角度θを90°より小さい角度にしたことである。
【0014】
これにより、ロアハウジング7の鍔状外周縁部とアッパーハウジング2のかしめ部2aとからなる環状のはんだ封止部は、取付け基準面7aの外周部が図の上方に開口している環状の部分の内側にせり出た形状になっていて、はんだ付けに際してはんだ封止部に置かれて溶融されるはんだ層8が取付け基準面7aに乗り上げるのをブロックしているので、ロアハウジング7の取付け基準面7aに対するはんだのはみ出しを確実に防止することができる。
【0015】
パワーエレメント1は、ロアハウジング7を弁部のボディ13にねじ込むことによって圧力制御弁を構成し、この圧力制御弁は、図2に示すように、圧縮機ハウジング11内に収容される。この圧力制御弁は、弁部を下にして圧縮機ハウジング11の挿入穴に挿入され、ロアハウジング7の取付け基準面7aが、圧縮機ハウジング11の挿入穴の中間段部11aに当接した状態で、Cリング12によって固定される。
【0016】
弁部は、ボディ13の先端部に設けられたストレーナ14を介して可変容量圧縮機の吐出室に連通されることにより、吐出圧力Pdを導入するポート15と、可変容量圧縮機のクランク室に連通されて制御された圧力、すなわちクランク室内圧力Pcを出力するポート16と、可変容量圧縮機の吸入室に連通されて吸入圧力Psを受けるポート17とを備え、吐出圧力Pdのポート15とクランク室内圧力Pcのポート16とを連通する冷媒流路には、ボディ13と一体に形成された弁座に吐出圧力Pdのポート15の側から着座するようボール弁体18が配置されている。このボール弁体18は、ばね19によって閉弁方向に付勢されており、このばね19のばね荷重は、ポート15に螺着されたアジャストねじ20によって調整される。また、ボディ13の軸線位置には、ボール弁体18に当接して制御駆動するシャフト21が軸線方向に進退自在に保持されている。
【0017】
この構成において、この圧力制御弁は、ダイヤフラム5が吸入圧力Psを受けて、図の上下方向に変位し、その変位量によってボール弁体18のリフト量が決まり、吐出室からクランク室へ供給される冷媒の流量が制御される。これにより、圧力制御弁は、吸入圧力Psが一定になるようにクランク室の圧力Pcを制御して可変容量圧縮機から吐出される冷媒の吐出容量を可変する。
【0018】
図3は、この発明の実施の形態に係る可変容量圧縮機用制御弁のパワーエレメントの変形例を示す断面図である。
この例は、パワーエレメント1の取付け基準面7aとはんだ封止部とを接続する外周面7bの取付け基準面7a側に、外側に突出したはんだブロック用の突起部7cを付けたものである。この突起部7cにより、ロアハウジング7の取付け基準面7aへのはんだのはみ出しが一層確実に防止できる。
【0019】
なお、パワーエレメント1の外周面7bに突起部7cを付けると同時に、取付け基準面7aとはんだ封止部とを接続する外周面7bの角度θも90°未満にすることで、さらに効果的にはんだのはみ出しを防止できる。
【0020】
【発明の効果】
以上に説明したように、この発明の圧力制御弁によれば、はんだ封止部からロアハウジングの外周部分に形成された取付け基準面に至る外周面が取付け基準面に対して90°未満の角度に形成するように構成した。これにより、はんだ封止部のはんだが取付け基準面にはみ出ることがなくなるので、はんだ封止部に用いられるはんだ量を一定に確保できる。そのため、安定したはんだ付けが可能になって、圧力制御弁の封止信頼性が向上する。
【0021】
また、はんだのはみ出しがなくなったので、圧力制御弁の外観寸法が安定し、圧縮機ハウジング内への取付けにも影響が出ない。
【図面の簡単な説明】
【図1】この発明の実施の形態に係る可変容量圧縮機用制御弁のパワーエレメントを示す断面図である。
【図2】圧縮機ハウジング内に収容された図1の可変容量圧縮機用制御弁を示す断面図である。
【図3】この発明の実施の形態に係る可変容量圧縮機用制御弁のパワーエレメントの変形例を示す断面図である。
【図4】可変容量圧縮機用の従来の圧力制御弁のパワーエレメントを示す断面図である。
【符号の説明】
1 パワーエレメント
2 アッパーハウジング
2a かしめ部
3 ばね
4 ディスク
4a 底面部
4b 外周起立部
5 ダイヤフラム
6 ディスク
6a 底面部
6b 外周起立部
6c 窪み
7 ロアハウジング
7a 取付け基準面
7b 外周面
7c 突起部
8 はんだ層
11 圧縮機ハウジング
11a 中間段部
12 Cリング
13 ボディ
14 ストレーナ
15,16,17 ポート
18 ボール弁体
20 アジャストねじ
21 シャフト
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pressure control valve that controls a valve opening according to the displacement of a pressure-sensitive member, and more particularly, an internal variable control that controls the volume of refrigerant gas that is provided in a variable capacity compressor of a vehicle air conditioner and discharged. It relates to a pressure control valve of the type.
[0002]
[Prior art]
In a vehicle air conditioner, since the rotational speed of an engine that is a power source is not constant, a variable capacity compressor that makes the capacity of the compressor variable is generally used to control the refrigeration capacity according to the refrigeration load. . As a method of changing the capacity with a variable capacity compressor, an internal variable control system (for example, refer to Patent Document 1) in which control is performed only in the compressor, and electrical control based on the calculation results of various sensor outputs. There is an external variable control system. Here, a control valve for a variable capacity compressor that performs control of the internal variable control system will be described.
[0003]
FIG. 4 is a cross-sectional view showing a power element of a conventional pressure control valve for a variable capacity compressor. FIG. 4 shows the power element constituting the pressure control valve in an inverted state in combination with a valve portion (not shown). The pressure control valve for the variable capacity compressor includes a valve portion and a power element 1 for driving and controlling the valve portion. The power element 1 includes an upper housing 2 with a spring 3, a spring receiving disk 4, A lower housing 7 on which a thin film diaphragm 5 and a disk 6 are placed and screwed into a valve body (not shown) is fixed by caulking while holding the outer peripheral edge of the diaphragm 5. is there. The lower housing 7 is formed with an attachment reference surface 7a on the outer peripheral portion as a reference when the pressure control valve is accommodated in the compressor housing. Further, a sealed space is defined in the upper housing 2 by a diaphragm 5 held between the upper housing 2 and the caulking portion 2a. The disk 6 is composed of a bottom surface portion 6a and an outer peripheral standing portion 6b, and a recess 6c for receiving one end of a valve body driving shaft is formed at the center of the bottom surface portion 6a. The spring receiving disk 4 is also made of the same member as the disk 6.
[0004]
Here, the bottom surface portion 6a of the disk 6 is in contact with the central portion of the diaphragm 5 with a predetermined area. Further, the outer peripheral standing part 6 b of the disk 6 is guided by the inner peripheral surface of the lower housing 7 whose diameter is increased, and is brought into contact with the step part to restrict the displacement of the diaphragm 5. The spring receiving disk 4 is displaced by the spring 3 in a state where the bottom surface portion 4 a is in pressure contact with the diaphragm 5, and the outer peripheral standing portion 4 b is similarly brought into contact with a step formed on the inner peripheral surface of the upper housing 2. Therefore, the displacement of the diaphragm 5 is regulated.
[0005]
As described above, this pressure control valve is configured so that the spring-shaped outer periphery of the lower housing 7 is fully surrounded with the diaphragm 5 held after the spring 3, the diaphragm 5, and the disks 4 and 6 are assembled in the upper housing 2. The outer housing 2, the diaphragm 5, and the lower housing 7 are mechanically fixed by caulking the crimping portion 2 a inward, and formed between the caulking portion 2 a of the upper housing 2 and the bowl-shaped outer peripheral edge of the lower housing 7. Soldered on an annular solder sealing portion. Thereby, the power element 1 is assembled with an airtight sealing structure. By forming the solder layer 8 on the solder sealing portion composed of the flange-shaped outer peripheral edge portion on the outer peripheral portion of the lower housing 7 and the caulking portion 2a of the upper housing 2, the entire periphery is hermetically sealed, and the upper housing The vacuum chamber surrounded by 2 and the diaphragm 5 is configured to be airtight. As a result, the pressure control valve is not affected by changes in temperature and atmospheric pressure when controlling the valve opening according to the displacement of the diaphragm 5.
[0006]
[Patent Document 1]
JP 2001-349279 A (paragraph numbers [0011] to [0014], FIG. 1)
[0007]
[Problems to be solved by the invention]
In the power element 1 of the conventional pressure control valve, an annular solder sealing portion composed of a flange-like outer peripheral edge portion on the outer peripheral portion of the lower housing 7 and a caulking portion 2 a of the upper housing 2 is hermetically sealed by the solder layer 8. When defining the vacuum chamber, if the amount of solder actually supplied to the solder sealing portion is reduced, the sealing performance in the solder sealing portion varies. Generally, in order to prevent the reliability of the solder sealing portion from being deteriorated, the amount of solder more than necessary is used in the normal power element 1. Further, depending on the shape of the fixed portion when the upper housing 2 is caulked, the amount of solder protruding varies. For this reason, the melted solder may wrap around other than the sealing portion and protrude beyond the mounting reference surface 7a that forms a predetermined step with respect to the solder sealing portion.
[0008]
That is, in some conventional pressure control valves, solder protrudes to portions other than the solder sealing portion such as the mounting reference surface, and when the pressure control valve is accommodated in the compressor housing, the solder is protruded. Due to dimensional changes, problems such as inability to mount were occurring. However, if the amount of solder is reduced in order to eliminate the solder protrusion from the mounting reference surface, there is a problem that sufficient hermetic sealing cannot be performed.
[0009]
An object of the present invention is to provide a pressure control valve which prevents solder from climbing from a solder sealing portion to an attachment reference surface when sealing between a housing defining a vacuum chamber and a diaphragm by soldering. There is.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, in the pressure control valve in which the outer peripheral portion of the pressure sensitive member is fixed by the first and second housings and sealed with solder, the pressure control valve is formed on the outer peripheral portion of the first housing. Formed on the outer peripheral portion of the first housing from the solder sealing portion formed by caulking the inner portion of the caulking portion of the second housing with the outer peripheral portion of the pressure-sensitive member sandwiched between the flange-shaped outer peripheral portion A pressure control valve is provided in which an outer peripheral surface reaching the mounting reference surface is formed at an angle of less than 90 ° with respect to the mounting reference surface.
[0011]
In this pressure control valve, when the solder is melted in the solder sealing portion, the inclined outer peripheral surface of the first housing makes it difficult for the solder to protrude from the solder sealing portion to the mounting reference surface, and is stable. Soldering is possible and the reliability of the pressure control valve is improved.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
1 is a cross-sectional view showing a power element of a control valve for a variable capacity compressor according to an embodiment of the present invention, and FIG. 2 shows the control valve for the variable capacity compressor of FIG. 1 housed in the compressor housing. It is sectional drawing shown. In FIG. 1, the power element 1 has the same number as the part corresponding to the conventional element shown in FIG.
[0013]
The power element 1 differs from that shown in FIG. 4 in that the inclination angle θ of the outer peripheral surface 7b from the flange-shaped outer peripheral portion formed on the outer peripheral portion of the lower housing 7 to the mounting reference surface 7a is set to an angle smaller than 90 °. It is that.
[0014]
As a result, the annular solder sealing portion composed of the flange-like outer peripheral edge portion of the lower housing 7 and the caulking portion 2a of the upper housing 2 is an annular portion in which the outer peripheral portion of the mounting reference surface 7a is opened upward in the drawing. Since the solder layer 8 placed on the solder sealing portion and melted when soldering is blocked from climbing onto the mounting reference surface 7a, the mounting reference of the lower housing 7 is provided. It is possible to reliably prevent the solder from protruding from the surface 7a.
[0015]
The power element 1 constitutes a pressure control valve by screwing the lower housing 7 into the body 13 of the valve portion, and this pressure control valve is accommodated in the compressor housing 11 as shown in FIG. The pressure control valve is inserted into the insertion hole of the compressor housing 11 with the valve portion facing down, and the mounting reference surface 7a of the lower housing 7 is in contact with the intermediate step portion 11a of the insertion hole of the compressor housing 11 And fixed by the C ring 12.
[0016]
The valve portion communicates with the discharge chamber of the variable capacity compressor via a strainer 14 provided at the tip of the body 13, thereby providing a port 15 for introducing the discharge pressure Pd and a crank chamber of the variable capacity compressor. A port 16 for outputting a controlled pressure, that is, a crank chamber pressure Pc, and a port 17 for receiving the suction pressure Ps connected to the suction chamber of the variable capacity compressor are provided. A ball valve element 18 is disposed in the refrigerant flow path communicating with the port 16 having the indoor pressure Pc so as to be seated on the valve seat formed integrally with the body 13 from the port 15 side having the discharge pressure Pd. The ball valve body 18 is biased in the valve closing direction by a spring 19, and the spring load of the spring 19 is adjusted by an adjustment screw 20 screwed to the port 15. Further, a shaft 21 which is in contact with the ball valve body 18 and is controlled and driven is held at the axial position of the body 13 so as to be able to advance and retract in the axial direction.
[0017]
In this configuration, the pressure control valve is displaced in the vertical direction in the drawing when the diaphragm 5 receives the suction pressure Ps, and the lift amount of the ball valve body 18 is determined by the displacement amount, and is supplied from the discharge chamber to the crank chamber. The flow rate of the refrigerant is controlled. Thus, the pressure control valve changes the discharge capacity of the refrigerant discharged from the variable capacity compressor by controlling the crank chamber pressure Pc so that the suction pressure Ps becomes constant.
[0018]
FIG. 3 is a cross-sectional view showing a modification of the power element of the control valve for a variable capacity compressor according to the embodiment of the present invention.
In this example, a protrusion 7c for a solder block protruding outward is attached to the mounting reference surface 7a side of the outer peripheral surface 7b connecting the mounting reference surface 7a of the power element 1 and the solder sealing portion. The protrusion 7c can more reliably prevent the solder from protruding to the mounting reference surface 7a of the lower housing 7.
[0019]
In addition, by attaching the protrusion 7c to the outer peripheral surface 7b of the power element 1, the angle θ of the outer peripheral surface 7b that connects the attachment reference surface 7a and the solder sealing portion is also less than 90 °. Can prevent solder from protruding.
[0020]
【The invention's effect】
As described above, according to the pressure control valve of the present invention, the outer peripheral surface from the solder sealing portion to the mounting reference surface formed on the outer peripheral portion of the lower housing is an angle of less than 90 ° with respect to the mounting reference surface. It was comprised so that it might form. Thereby, since the solder of the solder sealing portion does not protrude from the attachment reference surface, the amount of solder used for the solder sealing portion can be ensured to be constant. Therefore, stable soldering is possible, and the sealing reliability of the pressure control valve is improved.
[0021]
Further, since the solder does not protrude, the external dimensions of the pressure control valve are stabilized, and the mounting in the compressor housing is not affected.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a power element of a control valve for a variable capacity compressor according to an embodiment of the present invention.
2 is a cross-sectional view showing the control valve for the variable displacement compressor of FIG. 1 housed in a compressor housing.
FIG. 3 is a cross-sectional view showing a modification of the power element of the control valve for a variable capacity compressor according to the embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a power element of a conventional pressure control valve for a variable capacity compressor.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Power element 2 Upper housing 2a Caulking part 3 Spring 4 Disc 4a Bottom face part 4b Outer peripheral standing part 5 Diaphragm 6 Disc 6a Bottom face part 6b Outer peripheral standing part 6c Depression 7 Lower housing 7a Mounting reference surface 7b Outer peripheral surface 7c Protrusion part 8 Solder layer 11 Compressor housing 11a Intermediate step 12 C ring 13 Body 14 Strainers 15, 16, 17 Port 18 Ball valve body 20 Adjustment screw 21 Shaft

Claims (3)

感圧部材の外周部を第1及び第2のハウジングで固着しはんだで封止するようにした圧力制御弁において、
前記第1のハウジングの外周部分に形成された鍔状外周縁部に前記感圧部材の外周部を挟んで前記第2のハウジングのかしめ部を内側にかしめ加工することによって形成されるはんだ封止部から前記第1のハウジングの外周部分に形成された取付け基準面に至る外周面が前記取付け基準面に対して90°未満の角度に形成されていることを特徴とする圧力制御弁。
In the pressure control valve in which the outer peripheral portion of the pressure sensitive member is fixed by the first and second housings and sealed with solder,
Solder sealing formed by caulking the caulking portion of the second housing inwardly with the outer peripheral portion of the pressure-sensitive member sandwiched between the outer peripheral portion of the pressure-sensitive member on the outer peripheral portion of the outer periphery of the first housing A pressure control valve characterized in that an outer peripheral surface extending from a portion to an attachment reference surface formed on an outer peripheral portion of the first housing is formed at an angle of less than 90 ° with respect to the attachment reference surface.
前記封止部から前記取付け基準面に至る前記外周面は、前記取付け基準面側にて外側に突出した突起部を有していることを特徴とする請求項1記載の圧力制御弁。2. The pressure control valve according to claim 1, wherein the outer peripheral surface extending from the sealing portion to the attachment reference surface has a protrusion protruding outward on the attachment reference surface side. 感圧部材の外周部を第1及び第2のハウジングで固着しはんだで封止するようにした圧力制御弁において、
前記第1のハウジングの外周部分に形成された鍔状外周縁部に前記感圧部材の外周部を挟んで前記第2のハウジングのかしめ部を内側にかしめ加工することによって形成されるはんだ封止部から前記第1のハウジングの外周部分に形成された取付け基準面に至る外周面の前記取付け基準面側に外側に突出した突起部を有していることを特徴とする圧力制御弁。
In the pressure control valve in which the outer peripheral portion of the pressure sensitive member is fixed by the first and second housings and sealed with solder,
Solder sealing formed by caulking the caulking portion of the second housing inwardly with the outer peripheral portion of the pressure-sensitive member sandwiched between the outer peripheral portion of the pressure-sensitive member on the outer peripheral portion of the outer periphery of the first housing A pressure control valve having a protrusion protruding outward on the mounting reference surface side of an outer peripheral surface extending from a portion to an attachment reference surface formed on an outer peripheral portion of the first housing.
JP2003003234A 2003-01-09 2003-01-09 Pressure control valve Expired - Fee Related JP4128456B2 (en)

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KR100862621B1 (en) 2007-06-27 2008-10-09 동일기계공업 주식회사 Control valve for variable capacity compressor and method for assembling the control valve
JP5760201B2 (en) * 2010-11-15 2015-08-05 株式会社テージーケー Pressure control valve
JP2015151927A (en) * 2014-02-14 2015-08-24 株式会社オティックス delivery pipe
JP6516696B2 (en) * 2016-03-01 2019-05-22 株式会社鷺宮製作所 Volume adjustment valve
WO2018033863A1 (en) 2016-08-16 2018-02-22 Fisher & Paykel Healthcare Limited Pressure regulating valve

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