JP2013092229A - Solenoid valve - Google Patents

Solenoid valve Download PDF

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JP2013092229A
JP2013092229A JP2011235736A JP2011235736A JP2013092229A JP 2013092229 A JP2013092229 A JP 2013092229A JP 2011235736 A JP2011235736 A JP 2011235736A JP 2011235736 A JP2011235736 A JP 2011235736A JP 2013092229 A JP2013092229 A JP 2013092229A
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seat
ring
holder
valve
strainer
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JP5874962B2 (en
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Yuya Hayashi
裕矢 林
Shunji Miyanishi
俊二 宮西
Kazuhiro Yoshii
一博 吉井
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Nachi Fujikoshi Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a solenoid valve which is reduced in cost by arranging a ring member for improving fixing strength by integrally caulking a valve seat member and a strainer into a recessed shape at the opening side of the tip of a seat holder.SOLUTION: The tip 33 of the seat holder 14 is caulked after fittingly inserting a seat valve seat member 28, a seat ring 30, the strainer 31 and a ring 32 into a recessed hole 14b of the seat holder 14 which is caulked together with a cover 25, and the seat valve seat member 28, the seat ring 30, the strainer 31 and the ring 32 are firmly fixed to the recessed hole 14b by the elastic deformation of the tip 33 by a protruded annular collar 14c of the seat holder 14.

Description

本発明は、ＡＴまたはＣＶＴ等の自動車の自動変速機に用いられるソレノイドバルブに関し、さらに詳細には弁部の入力ポートにストレーナを装着してなるソレノイドバルブに関する。   The present invention relates to a solenoid valve used in an automatic transmission of an automobile such as AT or CVT, and more particularly to a solenoid valve having a strainer attached to an input port of a valve portion.

従来、この種のソレノイドバルブは油圧部に異物の侵入を防止するストレーナ２０（特許文献１に記載する番号を示す、以下同じ）をシートホルダ２の円筒状の先端３４に設けられている入力ポートに加締めあるいは装着されている（例えば、特許文献１参照。）。
さらに、作動油（ＡＴＦ）の流れを開閉する弁座部材、第１弁座２７、第２弁座２８（特許文献２に記載する番号を示す、以下同じ）をシートホルダである弁部１４内に配置し、ソレノイドコイル１２側からローリング加締めにて固定していた（例えば、特許文献２参照。）。 Conventionally, this type of solenoid valve has an input port provided with a strainer 20 (indicated by the number described in Patent Document 1, the same applies hereinafter) at the cylindrical tip 34 of the seat holder 2 for preventing foreign matter from entering the hydraulic part. It is caulked or mounted on (see, for example, Patent Document 1).
Furthermore, a valve seat member that opens and closes the flow of hydraulic oil (ATF), a first valve seat 27, and a second valve seat 28 (the numbers shown in Patent Document 2, the same applies hereinafter) are provided in the valve portion 14 that is a seat holder. And fixed by rolling caulking from the solenoid coil 12 side (see, for example, Patent Document 2).

特開２００３−２８３３９号公報JP 2003-28339 A 特開２００９−１５６３１２号公報JP 2009-155631 A

特許文献１及び特許文献２では、シートホルダにストレーナを装着する場合、シートホルダの先端に配置してストレーナを加締めと、シートホルダと弁座部材との加締めを別々に行うようになるので、コスト増加に繋がる。
また、弁座部材と一緒に内部に装着しようとするとストレーナ、シートホルダの形状変更の必要があるという問題があった。
本発明は係る課題を解決するためになされたもので、シートホルダの先端開口側を凹部形状とし、該凹部形状にボールを挟んで２個の弁座部材と共にストレーナとを一体に加締めて固定強度の向上を図るリング部材を設け、弁座部材を一体でシートホルダ先端部で加締める構造としたソレノイドバルブを提供することを目的とする。 In Patent Document 1 and Patent Document 2, when the strainer is mounted on the seat holder, the strainer is placed at the tip of the seat holder and the strainer is crimped, and the seat holder and the valve seat member are separately crimped. , Leading to increased costs.
Further, there is a problem in that it is necessary to change the shape of the strainer and the seat holder when trying to mount the valve seat member together with the valve seat member.
The present invention has been made in order to solve the above-mentioned problems. The front end opening side of the seat holder has a concave shape, and a ball is sandwiched between the concave shape and the strainer and the two valve seat members are integrally crimped and fixed. An object of the present invention is to provide a solenoid valve having a structure in which a ring member for improving the strength is provided and the valve seat member is integrally crimped by a front end portion of a seat holder.

前記の課題を解決するため請求項１記載の発明は、
固定鉄芯と、
前記固定鉄芯の回りに設けられたソレノイドコイルと、
前記固定鉄芯と前記ソレノイドコイルの吸引力により変位する可動鉄芯と、
前記可動鉄芯により流体の流れを制御するようにされたシートホルダと、
前記シートホルダの内径に嵌挿されたシート弁座部材と、
前記シートホルダの内径に嵌挿されて前記シート弁座部材に係合するシートリングと、
を備えたソレノイドバルブにおいて、
前記シートホルダの内径に前記シート弁座部材を固定するに際し、該シートホルダの先端側を凹部形状とし、該凹部に前記シート弁座部材及び前記シートリングを嵌挿したストレーナと、
前記ストレーナの次に嵌挿したリングと、
を有し、
前記シート弁座部材、前記シートリング、前記ストレーナ及び前記リングを一体にした状態で前記シートホルダの先端側を加締めて該シートホルダに固定することを特徴とする。 In order to solve the above problems, the invention according to claim 1
A fixed iron core,
A solenoid coil provided around the fixed iron core;
A movable iron core displaced by the suction force of the fixed iron core and the solenoid coil;
A sheet holder adapted to control the flow of fluid by the movable iron core;
A seat valve seat member fitted into the inner diameter of the seat holder;
A seat ring that is inserted into the inner diameter of the seat holder and engages with the seat valve seat member;
In a solenoid valve with
When fixing the seat valve seat member to the inner diameter of the seat holder, the front end side of the seat holder has a concave shape, and the strainer in which the seat valve seat member and the seat ring are inserted into the concave portion,
A ring inserted next to the strainer;
Have
The seat valve seat member, the seat ring, the strainer, and the ring are integrated, and the front end side of the seat holder is crimped and fixed to the seat holder.

本発明では、多数の部品を一括して一側の加締めにより固定することができるので加工工程を減らすことができ、加締めの際にリングをシートホルダの先端側の凹部形状に嵌挿するので、シートホルダの先端側の強度を確保することができる。   In the present invention, since a large number of parts can be fixed together by caulking on one side, the machining process can be reduced, and the ring is fitted into the concave shape on the front end side of the seat holder during caulking. Therefore, it is possible to ensure the strength on the front end side of the sheet holder.

本発明を実施の形態に係るソレノイドバルブの略縦断面図である。1 is a schematic longitudinal sectional view of a solenoid valve according to an embodiment of the present invention. 図１のシートホルダの先端側の要部拡大図である。It is a principal part enlarged view of the front end side of the sheet | seat holder of FIG. 図１のシートホルダの先端側を加締めた要部拡大図である。It is the principal part enlarged view which crimped the front end side of the sheet | seat holder of FIG.

以下、本発明のソレノイドバルブにつき好適な実施の形態を挙げ、添付図面を参照して詳細に説明する。図１は本発明の実施の形態に係るソレノイドバルブ１０の略縦断面図で、ソレノイド（コイル）の非励磁状態を示す。   Preferred embodiments of the solenoid valve of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a schematic longitudinal sectional view of a solenoid valve 10 according to an embodiment of the present invention, showing a non-excited state of a solenoid (coil).

図１に示すように、固定鉄芯１１は断面凹状の空間部１５を有する円筒部１６と、前記空間部１５の開口端１７に設けられた鍔部１８と、を備える。空間部１５の円筒部１６の底部１９にはドレーン用の貫通穴２０が設けられている。固定鉄芯１１の円筒部１６の外側１６ａ及び鍔部１８の円筒部外周面１８ａに接するようにソレノイドコイル１２が嵌挿されている。ソレノイドコイル１２はプラスチック製のボビン１２ａに巻き線１２ｂが巻かれている。ボビン１２ａの上端１２ｃが鍔部１８に対向して配置され、ボビン１２ａの内径１２ｄが円筒部外周面１８ａに嵌挿されている。ボビン１２ａの下端には断面Ｌ字状で円筒状の鉄製のヨーク２１が固定されている。ボビン１２ａの下方から端子部２２が半径方向に突出し外部から電力が供給される。   As shown in FIG. 1, the fixed iron core 11 includes a cylindrical portion 16 having a space portion 15 having a concave cross section and a flange portion 18 provided at an opening end 17 of the space portion 15. A drain through hole 20 is provided in the bottom 19 of the cylindrical portion 16 of the space portion 15. The solenoid coil 12 is inserted so as to be in contact with the outer side 16 a of the cylindrical part 16 of the fixed iron core 11 and the outer peripheral surface 18 a of the cylindrical part of the flange 18. The solenoid coil 12 has a winding 12b wound around a plastic bobbin 12a. An upper end 12c of the bobbin 12a is disposed to face the flange portion 18, and an inner diameter 12d of the bobbin 12a is fitted into the outer peripheral surface 18a of the cylindrical portion. A cylindrical iron yoke 21 having an L-shaped cross section is fixed to the lower end of the bobbin 12a. The terminal portion 22 projects in the radial direction from below the bobbin 12a, and power is supplied from the outside.

固定鉄芯１１の下端１１ａ及びボビン１２ａの内径１２ｄに沿って移動可能に可動鉄芯１３が設けられている。固定鉄芯１１と可動鉄芯１３との間にはスペーサ２３が設けられ、固定鉄芯１１と可動鉄芯１３とが直接接触しないようにされている。可動鉄芯１３は凹状穴１３ａを有する中空円筒状であり、底部にピン１３ｂが固定されている。凹状穴１３ａにはばね部材２４が設けられ、該ばね部材２４の上部が固定鉄芯１１の下端１１ａにスペーサ２３を介して当接し、ばね部材２４の弾発力により可動鉄芯１３と固定鉄芯１１が離隔するようにされている。可動鉄芯１３及びヨーク２１の下部にシートホルダ１４が設けられている。シートホルダ１４は上部に鍔１４ａを有し、鍔１４ａ、ヨーク２１、ソレノイドコイル１２、固定鉄芯１１の鍔部１８がカバー２５の両端部２５ａ、２５ｂで挟持するように加締め固定されている。   A movable iron core 13 is provided so as to be movable along the lower end 11a of the fixed iron core 11 and the inner diameter 12d of the bobbin 12a. A spacer 23 is provided between the fixed iron core 11 and the movable iron core 13 so that the fixed iron core 11 and the movable iron core 13 are not in direct contact with each other. The movable iron core 13 has a hollow cylindrical shape having a concave hole 13a, and a pin 13b is fixed to the bottom. A spring member 24 is provided in the concave hole 13 a, and the upper portion of the spring member 24 abuts the lower end 11 a of the fixed iron core 11 via the spacer 23, and the movable iron core 13 and the fixed iron are caused by the elastic force of the spring member 24. The core 11 is separated. A sheet holder 14 is provided below the movable iron core 13 and the yoke 21. The sheet holder 14 has a flange 14 a at the top, and is fixed by crimping so that the flange 14 a, the yoke 21, the solenoid coil 12, and the flange 18 of the fixed iron core 11 are sandwiched between both ends 25 a and 25 b of the cover 25. .

シートホルダ１４には凹状穴１４ｂにタンク穴２７を有するシート弁座部材２８、圧力ポート２９を有するシートリング３０、ストレーナ３１及びリング３２がこの順序で嵌挿されている。
シート弁座部材２８、シートリング３０、ストレーナ３１及びリング３２の結合は、図２に示すように凹状穴１４ｂにシート弁座部材２８、シートリング３０、ストレーナ３１及びリング３２を嵌挿した後に、図３に示すようにシートホルダ１４の先端部３３を加締めると、該先端部３３の塑性変形によりシートホルダ１４の凸状の環状鍔１４ｃにより前記シート弁座部材２８、シートリング３０、ストレーナ３１及びリング３２が凹状穴１４ｂに固着される。
この場合、リング３２はストレーナ３１を押えてシートホルダ１４の凹状穴１４ｂにシート弁座部材２８、シートリング３０、ストレーナ３１を一体に結合する際の加締め強度を高める機能を有する。 A seat valve seat member 28 having a tank hole 27 in a concave hole 14b, a seat ring 30 having a pressure port 29, a strainer 31 and a ring 32 are fitted in the seat holder 14 in this order.
The seat valve seat member 28, the seat ring 30, the strainer 31 and the ring 32 are joined after the seat valve seat member 28, the seat ring 30, the strainer 31 and the ring 32 are inserted into the concave hole 14b as shown in FIG. As shown in FIG. 3, when the leading end 33 of the seat holder 14 is crimped, the seat valve seat member 28, the seat ring 30 and the strainer 31 are formed by the convex annular flange 14c of the seat holder 14 due to plastic deformation of the leading end 33. And the ring 32 is fixed to the concave hole 14b.
In this case, the ring 32 has a function of increasing the caulking strength when the seat valve member 28, the seat ring 30, and the strainer 31 are integrally coupled to the concave hole 14b of the seat holder 14 by pressing the strainer 31.

図１は３方向２位置ノーマルクローズ弁であり、シートホルダ１４の凹状穴１４ｂに嵌挿されたシートリング３０には圧力ポート２９が穿設され、上方に開口する圧力ポート側弁座３４、該圧力ポート側弁座３４に離着座するボール３５が設けられている。ボール３５の上側には下方に開口するタンクポート側弁座３６が設けられ、ボール３５が離着座可能に配置されている。圧力ポート側弁座３４とタンクポート側弁座３６間に連通して負荷ポート３７が設けられ、図示しない供給路に接続されている。タンクポート側弁座３６はタンク穴２７を経由して図示しないタンクポートに連通し、ソレノイドバルブ１０の外部に排出される。   FIG. 1 shows a three-way two-position normal close valve, in which a pressure port 29 is formed in a seat ring 30 fitted in a recessed hole 14b of a seat holder 14 and opened upward, A ball 35 is provided on the pressure port side valve seat 34 so as to be separated from the seat. A tank port-side valve seat 36 that opens downward is provided on the upper side of the ball 35, and the ball 35 is disposed so as to be able to be detached and attached. A load port 37 is provided in communication between the pressure port side valve seat 34 and the tank port side valve seat 36, and is connected to a supply path (not shown). The tank port side valve seat 36 communicates with a tank port (not shown) via the tank hole 27 and is discharged to the outside of the solenoid valve 10.

可動鉄芯１３のピン１３ｂはその先端（図１で上端）がばね部材２４の弾発力によりボール３５に当接可能にされており、巻き線１２ｂに通電することにより、固定鉄芯１１側に吸引されボール３５と接触しないようにされる。
ソレノイドコイル１２が非励磁の場合には、ボール３５はばね部材２４の弾発力によりピン１３ｂに押し圧されて圧力ポート側弁座３４に着座し、圧力ポート２９と負荷ポート３７を遮断し、負荷ポート３７とタンクポートとを連通させる。
ソレノイドコイル１２が励磁されピン１３ｂがボール３５と離れているときは、ボール３５は圧力ポート２９の圧力に押され、タンクポート側弁座３６に着座し、圧力ポート２９と負荷ポート３７を連通し、負荷ポート３７とタンクポートを遮断させる。これにより、ソレノイドコイル１２のＯＮ−ＯＦＦにより流路を切り換える３方向２位置のノーマルクローズ弁を提供する。 The pin 13b of the movable iron core 13 has its tip (upper end in FIG. 1) abutted against the ball 35 by the elastic force of the spring member 24. By energizing the winding 12b, the fixed iron core 11 side So as not to come into contact with the ball 35.
When the solenoid coil 12 is not excited, the ball 35 is pressed against the pin 13b by the elastic force of the spring member 24 and is seated on the pressure port side valve seat 34, and the pressure port 29 and the load port 37 are shut off. The load port 37 communicates with the tank port.
When the solenoid coil 12 is excited and the pin 13 b is separated from the ball 35, the ball 35 is pushed by the pressure of the pressure port 29 and is seated on the tank port side valve seat 36, and the pressure port 29 and the load port 37 are communicated. The load port 37 and the tank port are shut off. This provides a three-way, two-position normal close valve that switches the flow path when the solenoid coil 12 is turned on and off.

本発明に係るソレノイドバルブ１０において、シートホルダ１４の凹状穴１４ｂにシート弁座部材２８、シートリング３０、ストレーナ３１及びリング３２を嵌挿した後に、シートホルダ１４の先端部３３を加締める構造とした。
これにより、ストレーナ付きであっても一側の加締め工程にてシート弁座部材２８、シートリング３０、ストレーナ３１及びリング３２の固定が完了するので、ソレノイドバルブ１０のコストを削減することができる。 In the solenoid valve 10 according to the present invention, after the seat valve seat member 28, the seat ring 30, the strainer 31 and the ring 32 are fitted and inserted into the concave hole 14b of the seat holder 14, the leading end portion 33 of the seat holder 14 is crimped. did.
Thereby, even if it is with a strainer, since fixation of the seat valve seat member 28, the seat ring 30, the strainer 31, and the ring 32 is completed in the one side caulking process, the cost of the solenoid valve 10 can be reduced. .

１０ ソレノイドバルブ １１ 固定鉄芯
１２ ソレノイドコイル １３ 可動鉄芯
１４ シートホルダ ２７ 第一弁座

DESCRIPTION OF SYMBOLS 10 Solenoid valve 11 Fixed iron core 12 Solenoid coil 13 Movable iron core 14 Seat holder 27 First valve seat

Claims (1)

固定鉄芯と、
前記固定鉄芯の回りに設けられたソレノイドコイルと、
前記固定鉄芯と前記ソレノイドコイルの吸引力により変位する可動鉄芯と、
前記可動鉄芯により流体の流れを制御するようにされたシートホルダと、
前記シートホルダの内径に嵌挿されたシート弁座部材と、
前記シートホルダの内径に嵌挿されて前記シート弁座部材に係合するシートリングと、
を備えたソレノイドバルブにおいて、
前記シートホルダの内径に弁座部材を固定するに際し、該シートホルダの先端側を凹部形状とし、該凹部に前記シート弁座部材及び前記シートリングを嵌挿したストレーナと、
前記ストレーナの次に嵌挿したリングと、
を有し、
前記シート弁座部材、前記シートリング、前記ストレーナ及び前記リングを一体にした状態で前記シートホルダの先端側を加締めて該シートホルダに固定することを特徴とするソレノイドバルブ。 A fixed iron core,
A solenoid coil provided around the fixed iron core;
A movable iron core displaced by the suction force of the fixed iron core and the solenoid coil;
A sheet holder adapted to control the flow of fluid by the movable iron core;
A seat valve seat member fitted into the inner diameter of the seat holder;
A seat ring that is inserted into the inner diameter of the seat holder and engages with the seat valve seat member;
In a solenoid valve with
When fixing the valve seat member to the inner diameter of the seat holder, the front end side of the seat holder has a concave shape, and the strainer in which the seat valve seat member and the seat ring are inserted into the concave portion,
A ring inserted next to the strainer;
Have
A solenoid valve, wherein the seat valve member, the seat ring, the strainer, and the ring are integrated together, and a front end side of the seat holder is crimped and fixed to the seat holder.
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Cited By (4)

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CN103742656A (en) * 2014-01-27 2014-04-23 衢州昀睿工业设计有限公司 Valve core component of automatic control valve
JP2015132295A (en) * 2014-01-10 2015-07-23 株式会社不二越 solenoid valve
JP2017048907A (en) * 2015-09-04 2017-03-09 浜名湖電装株式会社 solenoid valve
WO2024021770A1 (en) * 2022-07-27 2024-02-01 广东威灵电机制造有限公司 Electronic expansion valve and refrigeration device

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JPH0996394A (en) * 1993-01-22 1997-04-08 Hiyoshi Kogyo Kk Joint with filter improving differential pressure to back flow and its manufacture
JP2000046221A (en) * 1998-07-28 2000-02-18 Aisin Seiki Co Ltd Solenoid valve device
JP2003028339A (en) * 2001-07-12 2003-01-29 Nachi Fujikoshi Corp Strainer for control valve
JP2009156312A (en) * 2007-12-26 2009-07-16 Nachi Fujikoshi Corp Solenoid valve

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Publication number Priority date Publication date Assignee Title
JPH0996394A (en) * 1993-01-22 1997-04-08 Hiyoshi Kogyo Kk Joint with filter improving differential pressure to back flow and its manufacture
JP2000046221A (en) * 1998-07-28 2000-02-18 Aisin Seiki Co Ltd Solenoid valve device
JP2003028339A (en) * 2001-07-12 2003-01-29 Nachi Fujikoshi Corp Strainer for control valve
JP2009156312A (en) * 2007-12-26 2009-07-16 Nachi Fujikoshi Corp Solenoid valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015132295A (en) * 2014-01-10 2015-07-23 株式会社不二越 solenoid valve
CN103742656A (en) * 2014-01-27 2014-04-23 衢州昀睿工业设计有限公司 Valve core component of automatic control valve
JP2017048907A (en) * 2015-09-04 2017-03-09 浜名湖電装株式会社 solenoid valve
WO2024021770A1 (en) * 2022-07-27 2024-02-01 广东威灵电机制造有限公司 Electronic expansion valve and refrigeration device

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