JP4172419B2 - solenoid valve - Google Patents

solenoid valve Download PDF

Info

Publication number
JP4172419B2
JP4172419B2 JP2004144597A JP2004144597A JP4172419B2 JP 4172419 B2 JP4172419 B2 JP 4172419B2 JP 2004144597 A JP2004144597 A JP 2004144597A JP 2004144597 A JP2004144597 A JP 2004144597A JP 4172419 B2 JP4172419 B2 JP 4172419B2
Authority
JP
Japan
Prior art keywords
porous filter
sleeve
pressing member
outer peripheral
output port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2004144597A
Other languages
Japanese (ja)
Other versions
JP2005325920A (en
Inventor
隆 山口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Priority to JP2004144597A priority Critical patent/JP4172419B2/en
Publication of JP2005325920A publication Critical patent/JP2005325920A/en
Application granted granted Critical
Publication of JP4172419B2 publication Critical patent/JP4172419B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Details Of Valves (AREA)
  • Multiple-Way Valves (AREA)
  • Magnetically Actuated Valves (AREA)

Description

本発明は、電磁アクチュエータにより作動し、流路の切替を行う電磁弁に関する。   The present invention relates to an electromagnetic valve that is operated by an electromagnetic actuator and switches a flow path.

〔従来の技術〕
従来より、各種の流体回路が形成されたボディ等に嵌挿され、流路の切替を行う電磁弁が公知である。電磁弁は、各種流路に通じる複数のポートが形成されたスリーブと、スリーブの内部で軸方向に摺動自在に支持され、軸方向へ変位することでポート同士の連通状態を切り替えるスプールと、このスプールに駆動軸力を与えて、スプールを軸方向へ変位させる電磁アクチュエータとを備える。 [Conventional technology]
2. Description of the Related Art Conventionally, an electromagnetic valve that is inserted into a body or the like in which various fluid circuits are formed and switches a flow path is known. The solenoid valve includes a sleeve in which a plurality of ports communicating with various flow paths are formed, a spool that is slidably supported in the axial direction inside the sleeve, and that switches the communication state between the ports by displacing in the axial direction; And an electromagnetic actuator that applies a driving shaft force to the spool to displace the spool in the axial direction.

スリーブの外周には周状の溝部が形成され、溝部にポートが開口している。そして、この溝部には、流体に含まれる異物を捕捉するフィルタが装着され、各ポートを覆っている。フィルタは、例えば、金属網からなる濾過部と、濾過部と一体に成形された樹脂製の枠部とを有する枠付きフィルタであり、略Ｃ字状に形成されている。そして、枠付きフィルタは、スリーブの外周を環状に包囲するように溝部に嵌め込まれ、枠部の両端に設けられた係合部が互いに係合することにより装着される（例えば、特許文献１参照）。   A circumferential groove is formed on the outer periphery of the sleeve, and a port is opened in the groove. A filter that captures foreign substances contained in the fluid is attached to the groove and covers each port. A filter is a filter with a frame which has the filtration part which consists of metal nets, and the resin-made frame part shape | molded integrally with the filtration part, for example, and is formed in substantially C shape. The framed filter is fitted into the groove so as to surround the outer periphery of the sleeve in an annular shape, and is engaged by engaging portions provided at both ends of the frame (see, for example, Patent Document 1). ).

しかし、枠付きフィルタを採用する場合、係合部における異物の漏出を防止するために、係合部の加工精度を高くする必要があり、さらに装着作業も確実に行う必要がある。これに対し、近年、図５に示すような、枠部を有しない金属薄板製の多孔フィルタ１００が注目されている。多孔フィルタ１００は、厚み方向に貫通する多数の細孔１０１により濾過機能を果たす。   However, when adopting a framed filter, it is necessary to increase the processing accuracy of the engaging portion and to perform the mounting operation with certainty in order to prevent leakage of foreign matter in the engaging portion. On the other hand, in recent years, a porous filter 100 made of a thin metal plate having no frame portion as shown in FIG. 5 has attracted attention. The porous filter 100 fulfills a filtration function by a large number of pores 101 penetrating in the thickness direction.

多孔フィルタ１００も、枠付きフィルタと同様に、図５（ａ）に示すようにスリーブ１０２の外周を環状に包囲するように溝部１０３に嵌め込まれて装着される。この際、多孔フィルタ１００は、両方の端部１０４、１０６が重ねられて装着される（図５（ｂ）、（ｃ）参照）。そして、流体の圧力が加わると、一方の端部１０４における多孔フィルタ１００の外周面１０５が他方の端部１０６における多孔フィルタ１００の内周面１０７に液密的に接触するので異物の漏出が防止される。このため、枠付きフィルタを採用する場合の係合部に関わる不具合が解消される。しかし、流体の圧力が加わることにより、多孔フィルタ１００の環径は拡大するため、以下のような別の不具合が発生する。   As with the framed filter, the porous filter 100 is also fitted and fitted into the groove portion 103 so as to surround the outer periphery of the sleeve 102 in an annular shape as shown in FIG. At this time, the porous filter 100 is mounted with both end portions 104 and 106 overlapped (see FIGS. 5B and 5C). When a fluid pressure is applied, the outer peripheral surface 105 of the porous filter 100 at one end 104 comes into liquid-tight contact with the inner peripheral surface 107 of the porous filter 100 at the other end 106, thereby preventing leakage of foreign matter. Is done. For this reason, the malfunction regarding the engaging part at the time of employ | adopting a filter with a frame is eliminated. However, since the ring diameter of the porous filter 100 is expanded by applying the pressure of the fluid, the following another problem occurs.

〔従来技術の不具合〕
すなわち、出力ポート１０８が開口する溝部１０３に多孔フィルタ１００が装着されると、図５（ｂ）に示すように、多孔フィルタ１００は、流体により環径が拡大する（拡径する）方向に加圧される。これにより、多孔フィルタ１００の外周面１０５と、ボディ１０９に形成される内周面１１０との距離が縮小する。このため、実質的に濾過が行われる有効濾過部の面積（有効濾過面積）が低下してしまう。そして、外周面１０５と内周面１１０とが接触するまで多孔フィルタ１００が拡径すると、有効濾過面積は、内周面１１０における流路１１１の開口面積と同程度まで低下してしまう。 [Problems with conventional technology]
That is, when the porous filter 100 is attached to the groove 103 where the output port 108 opens, the porous filter 100 is added in the direction in which the ring diameter is expanded (expanded) by the fluid, as shown in FIG. Pressed. Thereby, the distance between the outer peripheral surface 105 of the porous filter 100 and the inner peripheral surface 110 formed on the body 109 is reduced. For this reason, the area (effective filtration area) of the effective filtration part in which filtration is performed substantially will fall. And if the porous filter 100 expands until the outer peripheral surface 105 and the internal peripheral surface 110 contact, the effective filtration area will fall to the same extent as the opening area of the flow path 111 in the internal peripheral surface 110. FIG.

なお、同様の不具合は、図５（ｃ）に示すように、入力ポート１１２が開口する溝部１０３に多孔フィルタ１００が装着された場合にも生じると予想される。この場合、多孔フィルタ１００は、環径が縮小する方向に加圧され、多孔フィルタ１００の内周面１０７と溝部１０３の外周面１１３との距離が縮小することにより有効濾過面積が低下すると考えられる。   Note that the same problem is expected to occur when the porous filter 100 is attached to the groove 103 where the input port 112 opens, as shown in FIG. In this case, the porous filter 100 is pressurized in the direction in which the ring diameter is reduced, and the effective filtration area is considered to be reduced by reducing the distance between the inner peripheral surface 107 of the porous filter 100 and the outer peripheral surface 113 of the groove 103. .

しかし、図５（ａ）に示すように、従来から溝部１０３の両端は段部１１４またはこれに相当する部分が形成されているため、多孔フィルタ１００は、段部１１４の有効高さｈ以上に溝部１０３に接近することができない。このため、入力ポート１１２が開口する溝部１０３に多孔フィルタ１００が装着されても、必要な有効濾過面積を確保することができる。
特開２０００−３４６００６号公報 However, as shown in FIG. 5 (a), since both ends of the groove 103 are conventionally formed with stepped portions 114 or portions corresponding thereto, the porous filter 100 has a height higher than the effective height h of the stepped portion 114. The groove 103 cannot be approached. For this reason, even if the porous filter 100 is attached to the groove portion 103 where the input port 112 opens, a necessary effective filtration area can be ensured.
JP 2000-346006 A

本発明は、上記の問題点を解決するためになされたものであり、出力ポートに装着された多孔フィルタの有効濾過面積を確保することができる電磁弁を提供することにある。   The present invention has been made to solve the above-described problems, and it is an object of the present invention to provide an electromagnetic valve capable of ensuring an effective filtration area of a porous filter attached to an output port.

〔請求項１の手段〕
請求項１に記載の電磁弁では、出力ポートを覆う多孔フィルタの軸方向一端または他端の少なくとも一方に、押さえ部材が多孔フィルタの外周側から当接する。また、押さえ部材は、螺線状に巻回された螺線部および螺線部の両端で円環状に巻回された円環部を具備するコイルである。
これにより、押さえ部材は、多孔フィルタが出力ポートから流出する流体に加圧されて拡径するのを防止することができる。このため、多孔フィルタの外周面と、ボディに形成される内周面との距離が縮小するのを防ぐことができる。この結果、出力ポートに装着される多孔フィルタの有効濾過面積を確保することができる。 [Means of Claim 1]
In the electromagnetic valve according to the first aspect, the pressing member comes into contact with at least one of the one end or the other end in the axial direction of the porous filter covering the output port from the outer peripheral side of the porous filter. The pressing member is a coil including a spiral portion wound in a spiral shape and an annular portion wound in an annular shape at both ends of the spiral portion.
Thereby, the pressing member can prevent the porous filter from being pressurized and expanded by the fluid flowing out from the output port. For this reason, it is possible to prevent the distance between the outer peripheral surface of the porous filter and the inner peripheral surface formed on the body from being reduced. As a result, the effective filtration area of the porous filter attached to the output port can be ensured.

〔請求項２の手段〕
請求項２に記載の電磁弁では、コイルの螺線部が１巻で形成されている。
これにより、多孔フィルタの軸方向中央部における濾過効率の低下を最小限に抑えることができる。 [Means of claim 2 ]
In the electromagnetic valve according to claim 2 , the spiral portion of the coil is formed by one turn.
Thereby, the fall of the filtration efficiency in the axial direction center part of a porous filter can be suppressed to the minimum.

〔請求項３の手段〕
請求項３に記載の電磁弁では、多孔フィルタおよび押さえ部材が、スリーブの外周に形成された周状の溝部に嵌め込まれており、押さえ部材は、スリーブの外周面よりも外周側に突出していない。
ボディの内周面とスリーブの外周面とは、液密的に接触するように極めて精密に加工されている。このため、押さえ部材がスリーブの外周面よりも外周側に突出していると、スリーブをボディに嵌挿することができない。そこで、押さえ部材がスリーブの外周面よりも外周側に突出しないようにすることで、スリーブを円滑にボディへ嵌挿することができる。 [Means of claim 3 ]
In the electromagnetic valve according to claim 3 , the porous filter and the pressing member are fitted in a circumferential groove formed on the outer periphery of the sleeve, and the pressing member does not protrude to the outer peripheral side from the outer peripheral surface of the sleeve. .
The inner peripheral surface of the body and the outer peripheral surface of the sleeve are processed extremely precisely so as to come into liquid-tight contact. For this reason, if the pressing member protrudes more outward than the outer peripheral surface of the sleeve, the sleeve cannot be fitted into the body. Therefore, the sleeve can be smoothly inserted into the body by preventing the pressing member from protruding outward from the outer peripheral surface of the sleeve.

最良の形態１の電磁弁は、内部に流体が流入するとともに、この流体が流出する出力ポートが形成されたスリーブと、スリーブの内部で軸方向に摺動自在に支持され、軸方向へ変位することで出力ポートを開閉するスプールと、スプールに駆動軸力を与えて、スプールを軸方向へ変位させる電磁アクチュエータと、両端が重ねられてスリーブの外周を環状に包囲するとともに、出力ポートを覆う薄板状の多孔フィルタと、多孔フィルタの軸方向一端または他端の少なくとも一方に外周側から当接することにより、多孔フィルタが出力ポートから流出する流体に加圧されて拡径するのを抑制する押さえ部材とを備える。   The solenoid valve of the best mode 1 is supported by a sleeve in which an output port from which a fluid flows and an output port from which the fluid flows is formed, and is slidably supported in the axial direction inside the sleeve, and is displaced in the axial direction. A spool that opens and closes the output port, an electromagnetic actuator that applies a driving axial force to the spool and displaces the spool in the axial direction, and a thin plate that covers both ends of the sleeve in an annular manner and surrounds the output port And a holding member that suppresses the porous filter from being expanded by being pressurized by the fluid flowing out from the output port by contacting at least one of the axial end and the other end of the porous filter from the outer peripheral side. With.

押さえ部材は、螺線状に巻回された螺線部および螺線部の両端で円環状に巻回された円環部を具備するコイルである。また、螺線部は１巻で形成されている。
また、多孔フィルタおよび押さえ部材は、スリーブの外周に周状に形成された溝部に嵌め込まれ、押さえ部材は、スリーブの外周面よりも外周側に突出していない。 Even push member is a coil having a circular section wound in a ring shape on both ends of the wound spiral portion spiral shape and Nishisen portion. Further, the spiral portion is formed by one turn.
Further, the porous filter and the pressing member are fitted into a groove formed circumferentially on the outer periphery of the sleeve, and the pressing member does not protrude to the outer peripheral side from the outer peripheral surface of the sleeve.

〔実施例１の構成〕
実施例１の電磁弁１の構成を図１ないし図３に基づいて説明する（実施例１は、本願発明の参考例である）。
電磁弁１は、例えば、自動変速機の変速要素に油圧を供給する油圧回路や、エンジンのバルブ可変タイミング装置の可変要素に油圧を供給する油圧回路などの流体回路が形成されたボディ（図示せず）に嵌挿され、流路の切替を行う。 [Configuration of Example 1]
The configuration of the electromagnetic valve 1 of Example 1 will be described with reference to FIGS. 1 to 3 (Example 1 is a reference example of the present invention) .
The solenoid valve 1 includes a body (not shown) in which a fluid circuit such as a hydraulic circuit that supplies hydraulic pressure to a transmission element of an automatic transmission and a hydraulic circuit that supplies hydraulic pressure to a variable element of an engine valve variable timing device is formed. And the flow path is switched.

電磁弁１は、図１（ａ）、（ｂ）に示すように、流体回路を構成する各種の流路に通じる複数のポート２が形成されたスリーブ３と、スリーブ３の内部で軸方向に摺動自在に支持され、軸方向へ変位することでポート２同士の連通状態を切り替えるスプール（図示せず）と、スプールに駆動軸力を与えて、スプールを軸方向へ変位させる電磁アクチュエータ４と、各ポート２を覆い、流体に含まれる異物を捕捉する多孔フィルタ５と、出力ポート６を覆う多孔フィルタ５が拡径するのを抑制する押さえ部材７を備える。   As shown in FIGS. 1A and 1B, the solenoid valve 1 includes a sleeve 3 in which a plurality of ports 2 communicating with various flow paths constituting a fluid circuit are formed, and an axial direction within the sleeve 3. A spool (not shown) that is slidably supported and switches the communication state between the ports 2 by being displaced in the axial direction, and an electromagnetic actuator 4 that applies a driving axial force to the spool to displace the spool in the axial direction. The porous filter 5 that covers each port 2 and captures foreign matters contained in the fluid, and the pressing member 7 that suppresses the diameter expansion of the porous filter 5 that covers the output port 6 are provided.

スリーブ３は、外部の流路からスリーブ３の内部に流体が流入する入力ポート（図示せず）、スリーブ３の内部から外部の流路に流体が流出する出力ポート６などの複数のポート２が形成されている。スリーブ３は、ボディの内周面に開口する流路と、この流路に適合するポート２とが連通するように、ボディに嵌挿される。また、スリーブ３の外周には周状に溝部１１が形成され、溝部１１に各ポート２が開口している。さらに、溝部１１の軸方向両端には、押さえ部材７とともに多孔フィルタ５を挟み込む段部１２が形成されている。   The sleeve 3 has a plurality of ports 2 such as an input port (not shown) through which fluid flows into the sleeve 3 from an external flow path, and an output port 6 through which fluid flows from the inside of the sleeve 3 to the external flow path. Is formed. The sleeve 3 is fitted into the body so that a flow path that opens to the inner peripheral surface of the body and a port 2 that matches the flow path communicate with each other. Further, a groove 11 is formed on the outer periphery of the sleeve 3 in a circumferential shape, and each port 2 is opened in the groove 11. Furthermore, step portions 12 that sandwich the porous filter 5 together with the pressing member 7 are formed at both axial ends of the groove portion 11.

多孔フィルタ５は、図１（ｂ）、（ｃ）に示すように、厚み方向に多数の細孔１４が形成された矩形状の金属薄板である。多孔フィルタ５の両端は、互いに重ねられる重ね合わせ部１５、１６をなす。そして、多孔フィルタ５は、略Ｃ字状に変形されて重ね合わせ部１５、１６が重ねられるとともに、溝部１１に嵌め込まれスリーブ３の外周を環状に包囲する。なお、多孔フィルタ５の軸方向の幅は、溝部１１の幅と略同一であり、多孔フィルタ５は容易に溝部１１に嵌め込まれる。   As shown in FIGS. 1B and 1C, the porous filter 5 is a rectangular metal thin plate in which a large number of pores 14 are formed in the thickness direction. Both ends of the porous filter 5 form overlapping portions 15 and 16 that are overlapped with each other. The porous filter 5 is deformed into a substantially C shape so that the overlapping portions 15 and 16 are overlapped, and the porous filter 5 is fitted into the groove portion 11 so as to surround the outer periphery of the sleeve 3 in an annular shape. Note that the axial width of the porous filter 5 is substantially the same as the width of the groove 11, and the porous filter 5 can be easily fitted into the groove 11.

押さえ部材７は、溝部１１に嵌め込まれた多孔フィルタ５を外周側から囲うようにして装着される。押さえ部材７は、図２の展開図に示すように略矩形状をなし、長辺方向の２つの桟１８と、２つの桟１８を短辺方向に架橋する補助桟１９と、２つの桟１８の端部間を架橋するとともに多孔フィルタ５を囲う際に互いに係合する２つの係合部２０とを有する。そして、押さえ部材７は、略Ｃ字状に形成され、図３に示すように係合部２０同士が係合する。   The pressing member 7 is mounted so as to surround the porous filter 5 fitted in the groove 11 from the outer peripheral side. As shown in the development view of FIG. 2, the pressing member 7 has a substantially rectangular shape, and includes two crosspieces 18 in the long side direction, an auxiliary crosspiece 19 that bridges the two crosspieces 18 in the short side direction, and two crosspieces 18. And two engaging portions 20 that engage with each other when enclosing the porous filter 5. The pressing member 7 is formed in a substantially C shape, and the engaging portions 20 are engaged with each other as shown in FIG.

桟１８は、図１（ｂ）、（ｃ）に示すように、多孔フィルタ５の軸方向両端を、段部１２とともに挟むように配置される。また、補助桟１９は、多孔フィルタ５との間に所定の隙間を形成できるように架橋される。これにより、補助桟１９の取付に伴う濾過効率の低下を防止することができる。また、押さえ部材７は、多孔フィルタ５とともに溝部１１に嵌め込まれた状態で、スリーブ３の外周面２２よりも外周側に突出しないような大きさである。   The crosspiece 18 is arrange | positioned so that the axial direction both ends of the porous filter 5 may be pinched | interposed with the step part 12, as shown in FIG.1 (b), (c). Further, the auxiliary bar 19 is cross-linked so as to form a predetermined gap with the porous filter 5. Thereby, the fall of the filtration efficiency accompanying attachment of the auxiliary crosspiece 19 can be prevented. Further, the pressing member 7 is sized so as not to protrude to the outer peripheral side from the outer peripheral surface 22 of the sleeve 3 in a state of being fitted into the groove portion 11 together with the porous filter 5.

〔実施例１の作用〕
実施例１の電磁弁１の作用を説明する。
電磁アクチュエータ４によりスプールが軸方向に駆動され、出力ポート６から流体が流出を始めると、多孔フィルタ５は、拡径する方向に加圧される。これに伴い、一方の重ね合わせ部１５における多孔フィルタ５の外周面２４が他方の重ね合わせ部１６における多孔フィルタ５の内周面２５に液密的に接触する。また、押さえ部材７が、外周面２４に外周側から当接する。これにより、多孔フィルタ５は、重ね合わせ部１５、１６における液密性を保持したまま、拡径するのを抑制される。 [Operation of Example 1]
The operation of the solenoid valve 1 according to the first embodiment will be described.
When the spool is driven in the axial direction by the electromagnetic actuator 4 and fluid begins to flow out from the output port 6, the porous filter 5 is pressurized in the direction of expanding the diameter. Accordingly, the outer peripheral surface 24 of the porous filter 5 in the one overlapping portion 15 comes into liquid-tight contact with the inner peripheral surface 25 of the porous filter 5 in the other overlapping portion 16. Further, the pressing member 7 contacts the outer peripheral surface 24 from the outer peripheral side. Thereby, it is suppressed that the porous filter 5 expands in diameter, maintaining the liquid tightness in the overlapping parts 15 and 16.

〔実施例１の効果〕
実施例１の電磁弁１では、押さえ部材７が、出力ポート６を覆う多孔フィルタ５の外周側から外周面２４に当接する。
これにより、押さえ部材７は、多孔フィルタ５が出力ポート６から流出する流体に加圧され拡径するのを防止することができる。このため、多孔フィルタ５の外周面２４と、ボディの内周面との距離が縮小するのを防ぐことができる。この結果、出力ポート６に装着された多孔フィルタ５の有効濾過面積を確保することができる。 [Effect of Example 1]
In the solenoid valve 1 of the first embodiment, the pressing member 7 contacts the outer peripheral surface 24 from the outer peripheral side of the porous filter 5 that covers the output port 6.
Thereby, the holding member 7 can prevent the porous filter 5 from being pressurized and expanded in diameter by the fluid flowing out from the output port 6. For this reason, it is possible to prevent the distance between the outer peripheral surface 24 of the porous filter 5 and the inner peripheral surface of the body from being reduced. As a result, the effective filtration area of the porous filter 5 attached to the output port 6 can be ensured.

実施例１の電磁弁１では、２つの桟１８が、押さえ部材７として、多孔フィルタ５の軸方向両端を環状に包囲している。
これにより、多孔フィルタ５の拡径を確実に防止するとともに、多孔フィルタ５の軸方向中央部で有効に濾過を行うことができる。 In the electromagnetic valve 1 according to the first embodiment, the two crosspieces 18 surround both ends of the porous filter 5 in the annular shape as the pressing member 7.
As a result, it is possible to reliably prevent the diameter of the porous filter 5 from being increased and to perform filtration effectively at the central portion in the axial direction of the porous filter 5.

実施例１の電磁弁１では、多孔フィルタ５の軸方向両端に配置された２つの桟１８が補助桟１９により架橋されている。
これにより、２つの桟１８が多孔フィルタ５の軸方向両端から軸方向中央部に移動するのを防止することができる。この結果、多孔フィルタ５の軸方向中央部における濾過効率が低下するのを防ぐことができる。 In the electromagnetic valve 1 according to the first embodiment, two crosspieces 18 disposed at both axial ends of the porous filter 5 are bridged by auxiliary crosspieces 19.
As a result, it is possible to prevent the two crosspieces 18 from moving from both axial ends of the porous filter 5 to the central portion in the axial direction. As a result, it can prevent that the filtration efficiency in the axial center part of the porous filter 5 falls.

実施例１の電磁弁１では、多孔フィルタ５および押さえ部材７が、スリーブ３の外周に形成された周状の溝部１１に嵌め込まれており、押さえ部材７は、スリーブ３の外周面２２よりも外周側に突出していない。
ボディの内周面とスリーブ３の外周面２２とは、液密性を保つため極めて精密に加工されている。このため、桟１８がスリーブ３の外周面２２よりも外周側に突出していると、スリーブ３をボディに嵌挿することができない。そこで、桟１８が外周面２２よりも外周側に突出しないようにすることで、スリーブ３を円滑にボディへ嵌挿することができる。 In the solenoid valve 1 according to the first embodiment, the porous filter 5 and the pressing member 7 are fitted in a circumferential groove portion 11 formed on the outer periphery of the sleeve 3, and the pressing member 7 is more than the outer peripheral surface 22 of the sleeve 3. It does not protrude to the outer periphery.
The inner peripheral surface of the body and the outer peripheral surface 22 of the sleeve 3 are processed extremely precisely to maintain liquid tightness. For this reason, if the crosspiece 18 protrudes from the outer peripheral surface 22 of the sleeve 3 to the outer peripheral side, the sleeve 3 cannot be inserted into the body. Therefore, the sleeve 3 can be smoothly inserted into the body by preventing the crosspiece 18 from projecting to the outer peripheral side of the outer peripheral surface 22.

〔実施例２の構成〕
実施例２の電磁弁１の構成を図４に基づいて説明する（実施例２は、本願発明の適用例である）。
実施例２の押さえ部材７はコイル２８である。コイル２８は、螺線状に巻回された１巻の螺線部２９および螺線部２９の両端で円環状に巻回された円環部３０を具備する。コイル２８は、軸方向に多孔フィルタ５の幅と略同一の長さであり、円環部３０が、多孔フィルタ５の軸方向両端をＣ字状に包囲し、段部１２とともに多孔フィルタ５を挟むように配置される。また、コイル２８は、スリーブ３の外周面２２よりも外周側に突出しないような大きさである。 [Configuration of Example 2]
The configuration of the solenoid valve 1 of the second embodiment will be described with reference to FIG. 4 (the second embodiment is an application example of the present invention) .
The pressing member 7 of the second embodiment is a coil 28. The coil 28 includes a spiral portion 29 wound in a spiral shape and an annular portion 30 wound in an annular shape at both ends of the spiral portion 29. The coil 28 has substantially the same length as the width of the porous filter 5 in the axial direction, and the annular portion 30 surrounds both ends in the axial direction of the porous filter 5 in a C shape, and the porous filter 5 together with the step portion 12 It arrange | positions so that it may pinch | interpose. Further, the coil 28 is sized so as not to protrude outward from the outer peripheral surface 22 of the sleeve 3.

〔実施例２の効果〕
実施例２の電磁弁１では、押さえ部材７としてのコイル２８が、多孔フィルタ５の拡径を防止している。
これにより、多孔フィルタ５の拡径を確実に防止することができる。 [Effect of Example 2]
In the electromagnetic valve 1 according to the second embodiment, the coil 28 as the pressing member 7 prevents the porous filter 5 from expanding in diameter.
Thereby, the diameter expansion of the porous filter 5 can be prevented reliably.

実施例２の電磁弁１では、コイル２８の螺線部２９を１巻で形成している。
これにより、多孔フィルタ５の軸方向中央部における濾過効率の低下を最小限に抑えることができる。 In the solenoid valve 1 of the second embodiment, the spiral portion 29 of the coil 28 is formed by one turn.
Thereby, the fall of the filtration efficiency in the axial direction center part of the porous filter 5 can be suppressed to the minimum.

〔変形例〕
実施例２では、濾過効率を考慮して螺線部２９を１巻にしていたが、２巻以上に巻き数を増やしてもよい。 [Modification ]
In the real施例2, the spiral portion 29 had to Volume 1 in consideration of the filtration efficiency may be increased the number of turns in two or more volumes.

（ａ）は多孔フィルタ装着前の電磁弁の側面図であり、（ｂ）は多孔フィルタおよび押さえ部材の装着状態を示す説明図であり、（ｃ）は多孔フィルタ装着後の電磁弁の断面図である（実施例１）。(A) is a side view of the solenoid valve before mounting the porous filter, (b) is an explanatory view showing a mounting state of the porous filter and the pressing member, and (c) is a sectional view of the solenoid valve after mounting the porous filter. (Example 1). （ａ）は押さえ部材を展開したときの平面図であり、（ｂ）は押さえ部材を展開したときの側面図である（実施例１）。(A) is a top view when a pressing member is developed, (b) is a side view when a pressing member is developed (Example 1). 押さえ部材の斜視図である（実施例１）。(Example 1) which is a perspective view of a pressing member. （ａ）は多孔フィルタと押さえ部材との装着状態を示す説明図であり、（ｂ）は多孔フィルタ装着後の電磁弁の断面図である（実施例２）。(A) is explanatory drawing which shows the mounting state of a porous filter and a pressing member, (b) is sectional drawing of the solenoid valve after porous filter mounting (Example 2). （ａ）は電磁弁をボディに装着した状態を示す断面図であり、（ｂ）は多孔フィルタを出力ポートに装着した状態を示す説明図であり、（ｃ）は多孔フィルタを入力ポートに装着した状態を示す説明図である（従来例）。(A) is sectional drawing which shows the state which attached the solenoid valve to the body, (b) is explanatory drawing which shows the state which attached the porous filter to the output port, (c) is attached to the input port of the porous filter It is explanatory drawing which shows the state which carried out (conventional example).

符号の説明Explanation of symbols

１ 電磁弁
２ ポート
３ スリーブ
４ 電磁アクチュエータ
５ 多孔フィルタ
６ 出力ポート
７ 押さえ部材
１１ 溝部
１８ 桟
１９ 補助桟
２２ 外周面
２８ コイル
２９ 螺線部
３０ 円環部 DESCRIPTION OF SYMBOLS 1 Solenoid valve 2 Port 3 Sleeve 4 Electromagnetic actuator 5 Porous filter 6 Output port 7 Holding member 11 Groove part 18 Crosspiece 19 Auxiliary crosspiece 22 Outer peripheral surface 28 Coil 29 Spiral part 30 Ring part

Claims (3)

内部に流体が流入するとともに、この流体が流出する出力ポートが形成されたスリーブと、
このスリーブの内部で軸方向に摺動自在に支持され、軸方向へ変位することで前記出力ポートを開閉するスプールと、
このスプールに駆動軸力を与えて、前記スプールを軸方向へ変位させる電磁アクチュエータと、
両端が重ねられて前記スリーブの外周を環状に包囲するとともに、前記出力ポートを覆う薄板状の多孔フィルタと、
この多孔フィルタの軸方向一端または他端の少なくとも一方に外周側から当接することにより、前記多孔フィルタが前記出力ポートから流出する流体に加圧されて拡径するのを抑制する押さえ部材とを備え、
前記押さえ部材は、螺線状に巻回された螺線部およびこの螺線部の両端で円環状に巻回された円環部を具備するコイルであることを特徴とする電磁弁。 A sleeve in which an output port from which fluid flows in and fluid flows out is formed;
A spool that is slidably supported in the axial direction inside the sleeve, and that opens and closes the output port by being displaced in the axial direction;
An electromagnetic actuator that applies a driving axial force to the spool to displace the spool in the axial direction;
A thin plate-like porous filter covering the output port, with both ends overlapped and annularly surrounding the outer periphery of the sleeve;
A pressing member that prevents the porous filter from being expanded by being pressurized by the fluid flowing out from the output port by contacting at least one of the axial end and the other end of the porous filter from the outer peripheral side. ,
The solenoid valve according to claim 1, wherein the pressing member is a coil including a spiral wound part in a spiral shape and an annular part wound in an annular shape at both ends of the spiral part . 請求項１に記載の電磁弁において、
前記螺線部は１巻で形成されていることを特徴とする電磁弁。 The solenoid valve according to claim 1,
The electromagnetic valve according to claim 1, wherein the spiral portion is formed by one turn . 請求項１または請求項２に記載の電磁弁において、
前記多孔フィルタおよび前記押さえ部材は、前記スリーブの外周に周状に形成された溝部に嵌め込まれ、
前記押さえ部材は、前記スリーブの外周面よりも外周側に突出していないことを特徴とする電磁弁。 The solenoid valve according to claim 1 or 2,
The porous filter and the pressing member are fitted into a groove formed circumferentially on the outer periphery of the sleeve,
The electromagnetic valve according to claim 1, wherein the pressing member does not protrude from the outer peripheral surface of the sleeve to the outer peripheral side .
JP2004144597A 2004-05-14 2004-05-14 solenoid valve Expired - Fee Related JP4172419B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004144597A JP4172419B2 (en) 2004-05-14 2004-05-14 solenoid valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004144597A JP4172419B2 (en) 2004-05-14 2004-05-14 solenoid valve

Publications (2)

Publication Number Publication Date
JP2005325920A JP2005325920A (en) 2005-11-24
JP4172419B2 true JP4172419B2 (en) 2008-10-29

Family

ID=35472431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004144597A Expired - Fee Related JP4172419B2 (en) 2004-05-14 2004-05-14 solenoid valve

Country Status (1)

Country Link
JP (1) JP4172419B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014020458A (en) * 2012-07-18 2014-02-03 Denso Corp Solenoid valve

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4465536B2 (en) 2007-06-13 2010-05-19 Ｓｍｃ株式会社 solenoid valve
JP4851413B2 (en) * 2007-09-28 2012-01-11 株式会社パイオラックス Band type filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014020458A (en) * 2012-07-18 2014-02-03 Denso Corp Solenoid valve

Also Published As

Publication number Publication date
JP2005325920A (en) 2005-11-24

Similar Documents

Publication Publication Date Title
US9945493B2 (en) Electromagnetic valve
EP1582791A1 (en) Solenoid valve
JP2005036912A (en) Hydraulic controller
US20140119964A1 (en) Electromagnetic pump device
JP6090278B2 (en) Valve device
JP4400486B2 (en) Control valve
JP2007162765A (en) Hydraulic control valve
JP2007211857A (en) Electromagnetic spool valve
JP4172419B2 (en) solenoid valve
JP6476534B2 (en) solenoid valve
KR101820044B1 (en) Air bypass valve
JP2004316855A (en) Proportional solenoid valve
US6827102B2 (en) Three port-two way solenoid valve
JP2008267569A (en) Valve device with actuator
US20050178451A1 (en) Solenoid valve
JP2007092768A (en) Spool valve
JP2004301294A (en) Solenoid valve
US20070209723A1 (en) Actuating valve with ball column actuation
JP4054932B2 (en) Solenoid valve for fluid pressure control
JP2006105247A (en) Strainer, and valve gear
JP5903845B2 (en) solenoid valve
JP3863763B2 (en) Hydraulic control device
JP7463355B2 (en) Solenoid valve
JP5938818B2 (en) Relief valve
JP7486410B2 (en) Control valve

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060713

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080226

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080228

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080414

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080722

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080804

R150 Certificate of patent or registration of utility model

Ref document number: 4172419

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110822

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120822

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130822

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees