JP2019056472A

JP2019056472A - solenoid valve

Info

Publication number: JP2019056472A
Application number: JP2017182775A
Authority: JP
Inventors: 智宏安田; Tomohiro Yasuda; 健太倉持; Kenta Kuramochi; 貴典荒; Takanori Ara; 偉明陳; Wei Ming Chen
Original assignee: Nidec Tosok Corp
Current assignee: Nidec Tosok Corp
Priority date: 2017-09-22
Filing date: 2017-09-22
Publication date: 2019-04-11
Anticipated expiration: 2037-09-22
Also published as: CN209067913U; JP6972833B2

Abstract

To provide a solenoid valve that enables work for fixing a solenoid part to a valve body to be performed easily.SOLUTION: A solenoid valve 1 includes: a solenoid part 10 for moving a shaft part 11 through excitation of a coil 29; a valve body 50 located on a front side of the solenoid part 10 and having a spool 52 movable together with the shaft part 11; and a fixing plate part 70 located between the solenoid part 10 and the valve body 50 to fix the solenoid part 10 to the valve body 50. The solenoid part 10 includes the shaft part 11, a core 17, a bobbin 25, a coil 29, and a housing 30 for housing these elements. The housing 30 includes a swaging part 32 protruded from a front side end. The fixing plate part 70 includes: a central hole part 73; and a fixing part 79 located on a radial outer side of the central hole part 73 to fix the fixing plate part 70 to the valve body 50. Since the swaging part 32 penetrates through a mounting hole part 75a and is bent in the radial direction, the housing 30 is fixed to the fixing plate part 70.SELECTED DRAWING: Figure 1

Description

本発明は、電磁弁に関する。 The present invention relates to a solenoid valve.

従来、自動車等の車両の自動変速機に繋がる油圧回路の油圧制御を電磁弁によって行うものが知られている。例えば、特許文献１には、コイルの励磁によりシャフトを移動させるソレノイド部と、ソレノイド部の軸方向一方側に位置し、シャフトの移動とともに移動可能なスプールを有するバルブボディと、を有する電磁弁が開示される。 2. Description of the Related Art Conventionally, an electromagnetic valve that performs hydraulic control of a hydraulic circuit connected to an automatic transmission of a vehicle such as an automobile is known. For example, Patent Document 1 discloses an electromagnetic valve having a solenoid part that moves a shaft by excitation of a coil, and a valve body that is positioned on one side in the axial direction of the solenoid part and has a spool that can move as the shaft moves. Disclosed.

特許文献１に記載のソレノイド部は、軸方向に延びる中心軸を中心とするシャフトと、シャフトの径方向外側に位置するコア（固定コア）と、シャフトに固定されてシャフトの径方向外側に位置し、コアに対して軸方向に移動するプランジャ（可動コア）と、コア（固定コア）の径方向外側の側面を覆うボビンと、ボビンに巻かれたコイルと、シャフト、コア（固定コア）、プランジャ（可動コア）、ボビン及びコイルを収容し、軸方向他方側に底部を有する有底筒状のハウジングと、を有する。 The solenoid part described in Patent Document 1 includes a shaft centering on a central axis extending in the axial direction, a core (fixed core) positioned on the outer side in the radial direction of the shaft, and positioned on the outer side in the radial direction of the shaft. A plunger (movable core) that moves in the axial direction with respect to the core, a bobbin that covers a radially outer side surface of the core (fixed core), a coil wound around the bobbin, a shaft, a core (fixed core), A bottomed cylindrical housing that houses a plunger (movable core), a bobbin, and a coil, and has a bottom on the other side in the axial direction.

ソレノイド部は、ハウジングの軸方向一方側端部（加締め部）をバルブボディの軸方向他方側端部に加締めることにより、バルブボディに固定される。 The solenoid part is fixed to the valve body by crimping one end (clamping part) in the axial direction of the housing to the other end in the axial direction of the valve body.

特開２０１１−１１２０７６号公報JP 2011-1112076 A

特許文献１に記載のソレノイド部は、ボビンと一体成型されるカプラ部を有する。カプラ部は、ハウジングの軸方向一方側のハウジングの径方向外側に位置してバルブボディ側へ延びるとともに、ハウジングの加締め部の径方向外側の隣接した位置に配置される。このため、加締め冶具によりハウジングの加締め部をバルブボディに加締める際に、カプラ部を有するために、加締め冶具を加締め部に接触させにくく成り、加締め作業の作業性が低下する。 The solenoid part described in Patent Document 1 has a coupler part that is integrally molded with a bobbin. The coupler portion is positioned on the outer side in the radial direction of the housing on one axial side of the housing and extends toward the valve body side, and is disposed at an adjacent position on the outer side in the radial direction of the caulking portion of the housing. For this reason, when caulking the caulking part of the housing to the valve body with the caulking jig, since the coupler part is provided, the caulking jig is hardly brought into contact with the caulking part, and the workability of the caulking work is reduced. .

本発明の目的は、バルブボディにソレノイド部を固定する固定作業が容易な電磁弁を提供することである。 An object of the present invention is to provide an electromagnetic valve that can be easily fixed to fix a solenoid portion to a valve body.

本願の例示的な第１発明は、コイルの励磁により軸部を移動させるソレノイド部と、前記ソレノイド部の軸方向一方側に位置し、前記軸部の移動とともに移動可能なスプールを有するバルブボディと、前記ソレノイド部と前記バルブボディとの間に位置し、前記ソレノイド部を前記バルブボディに固定する固定板部と、を有し、前記ソレノイド部は、前記軸部と、前記軸部の径方向外側に位置するコアと、前記コアの径方向外側に配置されたボビンと、前記ボビンに巻かれた前記コイルと、前記軸部、前記コア、前記ボビン及び前記コイルを収容し、軸方向他方側に底部を有する有底筒状のハウジングと、を有し、前記ハウジングは、軸方向一方側端部から軸方向一方側へ突出する加締め部を有し、前記固定板部は、軸方向に貫通する中央孔部と、前記中央孔部の径方向外側に位置し、前記加締め部が挿入される取付孔部と、前記取付孔部の径方向外側に位置し、固定部材を介して前記固定板部を前記バルブボディに固定する固定部と、を有し、前記ハウジングは、前記加締め部が前記取付孔部を貫通し、且つ径方向に折れ曲がっている事により、前記固定板部に固定される電磁弁である。 An exemplary first invention of the present application includes: a solenoid part that moves a shaft part by excitation of a coil; and a valve body that is positioned on one side in the axial direction of the solenoid part and has a spool that can move as the shaft part moves. A fixing plate portion that is positioned between the solenoid portion and the valve body and fixes the solenoid portion to the valve body, and the solenoid portion includes the shaft portion and a radial direction of the shaft portion. An outer core, a bobbin disposed radially outside the core, the coil wound around the bobbin, the shaft portion, the core, the bobbin, and the coil are accommodated on the other side in the axial direction. A bottomed cylindrical housing having a bottom portion, the housing having a caulking portion projecting from one axial end portion to one axial direction, and the fixing plate portion extending in the axial direction. Central hole through And a mounting hole portion that is located radially outside the central hole portion and into which the caulking portion is inserted, and that is located radially outside the mounting hole portion, and the fixing plate portion is inserted through a fixing member. An electromagnetic valve that is fixed to the fixing plate portion when the caulking portion passes through the mounting hole and is bent in a radial direction. It is.

本願の例示的な第１発明によれば、バルブボディにソレノイド部を固定する固定作業が容易な電磁弁を提供することができる。 According to the first exemplary invention of the present application, it is possible to provide an electromagnetic valve that can be easily fixed to fix the solenoid portion to the valve body.

第１実施形態に係る電磁弁の断面図である。It is sectional drawing of the solenoid valve which concerns on 1st Embodiment. 第１実施形態に係るソレノイド部のハウジングの斜視図である。It is a perspective view of the housing of the solenoid part which concerns on 1st Embodiment. 図５のＶ−Ｖ矢視に相当するソレノイド部の断面図である。It is sectional drawing of the solenoid part corresponded to the VV arrow of FIG. 同図ａは、ソレノイド部を固定する固定板部の斜視図であり、同図ｂは、取付孔部の拡大図である。FIG. 5A is a perspective view of a fixing plate portion that fixes the solenoid portion, and FIG. 5B is an enlarged view of the mounting hole portion. 第１実施形態の変形例に係る電磁弁をポンプボデイ側から見た斜視図である。It is the perspective view which looked at the solenoid valve which concerns on the modification of 1st Embodiment from the pump body side. 第１実施形態の変形例に係る電磁弁をソレノイド部側から見た斜視図である。It is the perspective view which looked at the solenoid valve which concerns on the modification of 1st Embodiment from the solenoid part side.

以下、図面を参照しながら、本発明の実施形態に係る電磁弁について説明する。本実施形態では、自動車等の車両に搭載される自動変速機の制御を行う電磁弁について説明する。また、以下の図面においては、各構成をわかり易くするために、実際の構造と各構造における縮尺及び数等を異ならせる場合がある。 Hereinafter, an electromagnetic valve according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, an electromagnetic valve that controls an automatic transmission mounted on a vehicle such as an automobile will be described. Moreover, in the following drawings, in order to make each structure easy to understand, the actual structure may be different from the scale and number in each structure.

また、図面においては、適宜３次元直交座標系としてＸＹＺ座標系を示す。ＸＹＺ座標系において、Ｚ軸方向は、図１に示す中心軸Ｊの軸方向他方向と平行な方向とする。Ｘ軸方向は、図１に示す電磁弁の短手方向と平行な方向、すなわち、図１の上下方向とする。Ｙ軸方向は、Ｘ軸方向とＺ軸方向との両方と直交する方向とする。 In the drawings, an XYZ coordinate system is appropriately shown as a three-dimensional orthogonal coordinate system. In the XYZ coordinate system, the Z-axis direction is a direction parallel to the other axial direction of the central axis J shown in FIG. The X-axis direction is a direction parallel to the short direction of the solenoid valve shown in FIG. 1, that is, the vertical direction in FIG. The Y-axis direction is a direction orthogonal to both the X-axis direction and the Z-axis direction.

また、以下の説明においては、Ｚ軸方向の正の側（＋Ｚ側）を「リア側」と記し、Ｚ軸方向の負の側（−Ｚ側）を「フロント側」と記す。なお、リア側及びフロント側とは、単に説明のために用いられる名称であって、実際の位置関係や方向を限定しない。また、特に断りのない限り、中心軸Ｊに平行な方向（Ｚ軸方向）を単に「軸方向」と記し、中心軸Ｊを中心とする径方向を単に「径方向」と記し、中心軸Ｊを中心とする周方向、すなわち、中心軸Ｊの軸周り（θ方向）を単に「周方向」と記す。 In the following description, the positive side (+ Z side) in the Z-axis direction is referred to as “rear side”, and the negative side (−Z side) in the Z-axis direction is referred to as “front side”. The rear side and the front side are simply names used for explanation, and do not limit the actual positional relationship and direction. Unless otherwise specified, a direction parallel to the central axis J (Z-axis direction) is simply referred to as “axial direction”, a radial direction centered on the central axis J is simply referred to as “radial direction”, and the central axis J The circumferential direction centered on the axis, that is, the circumference of the central axis J (θ direction) is simply referred to as “circumferential direction”.

なお、本明細書において、軸方向に延びる、とは、厳密に軸方向（Ｚ軸方向）に延びる場合に加えて、軸方向に対して、４５°未満の範囲で傾いた方向に延びる場合も含む。また、本明細書において、径方向に延びる、とは、厳密に径方向、すなわち、軸方向（Ｚ軸方向）に対して垂直な方向に延びる場合に加えて、径方向に対して、４５°未満の範囲で傾いた方向に延びる場合も含む。 In this specification, “extending in the axial direction” means not only extending in the axial direction (Z-axis direction) but also extending in a direction inclined by less than 45 ° with respect to the axial direction. Including. Further, in this specification, the term “extend in the radial direction” means 45 ° with respect to the radial direction in addition to the case where it extends strictly in the radial direction, that is, the direction perpendicular to the axial direction (Z-axis direction) Including the case of extending in a tilted direction within a range of less than.

[第１実施形態]
＜全体構成＞
図１は、第１実施形態に係る電磁弁の断面図である。本実施形態の電磁弁は、図１に示すように、ソレノイド部１０と、バルブボディ５０と、固定板部７０と、を有する。ソレノイド部１０とバルブボディ５０は、軸方向に沿って配置される。ソレノイド部１０は、コイル２９の励磁により軸部１１を移動させる。バルブボディ５０は、ソレノイド部１０の軸方向一方側（フロント側）に位置し、軸部１１の移動とともに移動可能なスプール５２を有する。なお、バルブボディ５０のＸ軸方向マイナス側（下側）には、図示しない下側バルブボディが接続される。下側バルブボディは、例えば、複数のシフト弁、アキュムレータ、入出力ポートを有する。下側バルブボディは、図示しない油圧ポンプから供給される圧油を調圧してバルブボディに送る。バルブボディは調圧された圧油をスプール５２を介して自動変速機に送油する。 [First embodiment]
<Overall configuration>
FIG. 1 is a cross-sectional view of a solenoid valve according to the first embodiment. As shown in FIG. 1, the electromagnetic valve according to the present embodiment includes a solenoid unit 10, a valve body 50, and a fixed plate unit 70. The solenoid unit 10 and the valve body 50 are disposed along the axial direction. The solenoid unit 10 moves the shaft unit 11 by exciting the coil 29. The valve body 50 has a spool 52 that is located on one side (front side) in the axial direction of the solenoid unit 10 and is movable along with the movement of the shaft unit 11. A lower valve body (not shown) is connected to the negative side (lower side) of the valve body 50 in the X-axis direction. The lower valve body has, for example, a plurality of shift valves, accumulators, and input / output ports. The lower valve body regulates pressure oil supplied from a hydraulic pump (not shown) and sends the pressure oil to the valve body. The valve body sends the regulated pressure oil to the automatic transmission via the spool 52.

固定板部７０は、ソレノイド部１０とバルブボディ５０との間に位置し、ソレノイド部１０を固定板部７０を介してバルブボディ５０に固定する。以下、構成部材毎に詳細に説明する。 The fixed plate portion 70 is located between the solenoid portion 10 and the valve body 50, and fixes the solenoid portion 10 to the valve body 50 via the fixed plate portion 70. Hereinafter, each constituent member will be described in detail.

＜ソレノイド部１０＞
ソレノイド部１０は、図１に示すように、軸部１１と、コア１７と、ヨーク２１と、ボビン２５と、コイル２９と、ハウジング３０と、を有する。 <Solenoid part 10>
As shown in FIG. 1, the solenoid portion 10 includes a shaft portion 11, a core 17, a yoke 21, a bobbin 25, a coil 29, and a housing 30.

（ハウジング３０）
図２は、第１実施形態に係るソレノイド部１０のハウジング３０の斜視図である。ハウジング３０は、図１及び図２に示すように、磁性金属材料製であり、軸方向他方側（リア側）に、底部３０ａを有した有底筒状である。すなわち、ハウジング３０は、筒状部分のリア側を覆う底部３０ａを有して有底筒状である。ハウジング３０は、軸方向一方側端部から軸方向一方側（フロント側）へ突出する加締め部３２を有する。本実施形態では、加締め部３２は、ハウジング３０のフロント側端部に周方向に等間隔を有して３つ設けられる。即ち、加締め部３２は、ハウジング３０のフロント側端部に隣接する他の加締め部３２との間で１２０度の角度を有して位置する。加締め部３２は、周方向に所定長さを有して円弧状である。 (Housing 30)
FIG. 2 is a perspective view of the housing 30 of the solenoid unit 10 according to the first embodiment. As shown in FIGS. 1 and 2, the housing 30 is made of a magnetic metal material, and has a bottomed cylindrical shape having a bottom portion 30a on the other axial side (rear side). That is, the housing 30 has a bottomed cylindrical shape having a bottom portion 30a that covers the rear side of the cylindrical portion. The housing 30 has a caulking portion 32 that protrudes from one end in the axial direction to one side (front side) in the axial direction. In the present embodiment, three caulking portions 32 are provided at the front end portion of the housing 30 at equal intervals in the circumferential direction. That is, the caulking portion 32 is positioned at an angle of 120 degrees with another caulking portion 32 adjacent to the front side end portion of the housing 30. The caulking portion 32 has a predetermined length in the circumferential direction and has an arc shape.

加締め部３２の周方向長さＬｓ、径方向長さＴｓ（厚さ）、軸方向長さＨｓ（高さ）の詳細については、後述する。 The details of the circumferential length Ls, radial length Ts (thickness), and axial length Hs (height) of the caulking portion 32 will be described later.

周方向に隣接する加締め部３２間におけるハウジング３０の軸方向一方側（フロント側）の周端部３０ｂは、同一平面上に延びる。このため、加締め部３２が取付孔部７５ａ、７５ｂ、７５ｃを貫通し、且つ径方向に折れ曲がっている状態になると、周端部３０ｂの端面は固定板部７０の軸方向他方側（リア側）の面７０ａに接触する。加締め部３２は、取付孔部７５ａ、７５ｂ、７５ｃ（図４ａ参照）に挿入されて加締められて、ハウジング３０を固定板部７０に固定する。取付孔部７５ａ、７５ｂ、７５ｃの詳細は後述する。 A circumferential end 30b on one side (front side) in the axial direction of the housing 30 between the caulking portions 32 adjacent in the circumferential direction extends on the same plane. For this reason, when the caulking portion 32 passes through the mounting hole portions 75a, 75b, and 75c and is bent in the radial direction, the end surface of the peripheral end portion 30b is on the other side (rear side) in the axial direction of the fixed plate portion 70. ) In contact with the surface 70a. The caulking portion 32 is inserted into the attachment holes 75 a, 75 b, 75 c (see FIG. 4 a) and is caulked to fix the housing 30 to the fixed plate portion 70. Details of the mounting holes 75a, 75b, and 75c will be described later.

図３は、図５のV−V矢視に相当するソレノイド部の断面図である。ハウジング３０のフロント側であって周方向に隣接する加締め部３２間には、図２及び図３に示すように、切欠き部３５が設けられる。切欠き部３５は、径方向外側から内側方向に見たときに、四角形状である。切欠き部３５には、ボビン２５と一体成型されたターミナル２６が突出する。ターミナル２６は、ボビン２５のフロント側端部から径方向外側へ延びて切欠き部３５を貫通するターミナル延出部２６ａと、ハウジング３０の径方向外側に位置し、ターミナル延出部２６ａのリア側端部に繋がってリア側へ延びるターミナル本体部２６ｂと、を有する。ターミナル本体部２６ｂは、リア側端部が開口してフロント側へ窪むターミナル孔部２６ｂ１を有する。ターミナル孔部２６ｂ１内には、コイル２９に電気的に接続される図示しない端子が設けられる。 FIG. 3 is a cross-sectional view of the solenoid portion corresponding to the VV arrow in FIG. As shown in FIGS. 2 and 3, a notch 35 is provided between the caulking portions 32 adjacent to each other on the front side of the housing 30 in the circumferential direction. The notch 35 has a quadrangular shape when viewed from the radially outer side to the inner side direction. A terminal 26 integrally molded with the bobbin 25 protrudes from the notch 35. The terminal 26 extends radially outward from the front side end of the bobbin 25 and passes through the notch 35, and is located on the radially outer side of the housing 30 and on the rear side of the terminal extension 26a. And a terminal main body portion 26b extending to the rear side connected to the end portion. The terminal body 26b has a terminal hole 26b1 that is open at the rear end and is recessed toward the front. A terminal (not shown) that is electrically connected to the coil 29 is provided in the terminal hole 26b1.

（軸部１１）
軸部１１は、図１に示すように、プランジャ１１ａとシャフト部１１ｂとを有する。プランジャ１１ａは、シャフト部１１ｂの径方向外側に位置し、コア１７に対して軸方向に移動する。シャフト部１１ｂは、プランジャ１１ａの中心軸部分に装着される。 (Shaft 11)
As shown in FIG. 1, the shaft portion 11 includes a plunger 11a and a shaft portion 11b. The plunger 11 a is located on the radially outer side of the shaft portion 11 b and moves in the axial direction with respect to the core 17. The shaft portion 11b is attached to the central axis portion of the plunger 11a.

本実施形態では、シャフト部１１ｂは、金属材料製であり、プランジャ１１ａ内を貫通して、プランジャ１１ａの軸方向両側から突出して延びる。プランジャ１１ａから軸方向両側へ延びるシャフト部１１ｂは、コア１７内の貫通孔１７ａに挿入されたすべり軸受け１８及びヨーク２１の小径孔部２１ｃに設けられたすべり軸受け１９を介して支持される。コ１７ア及びヨーク２１の詳細については後述する。 In the present embodiment, the shaft portion 11b is made of a metal material, extends through the plunger 11a, and extends from both sides in the axial direction of the plunger 11a. The shaft portion 11 b extending from the plunger 11 a to both sides in the axial direction is supported via a slide bearing 18 inserted in the through hole 17 a in the core 17 and a slide bearing 19 provided in the small diameter hole portion 21 c of the yoke 21. Details of the core 17 and the yoke 21 will be described later.

プランジャ１１ａは、シャフト部１１ｂに固定されて、コア１７に対して軸方向に移動する。本実施形態では、プランジャ１１ａは、磁性材料製であり、シャフト部１１ｂの軸方向中央部に固定される。プランジャ１１ａは、円筒状であり、軸方向に貫通する貫通孔１１ａ１を有する。貫通孔１１ａ１内にシャフト部１１ｂが嵌め合わされた状態で通される。このため、プランジャ１１ａとシャフト部１１ｂとは一体化されて、プランジャ１１ａの移動とともにシャフト１１ｂが移動する。 The plunger 11 a is fixed to the shaft portion 11 b and moves in the axial direction with respect to the core 17. In the present embodiment, the plunger 11a is made of a magnetic material and is fixed to the central portion in the axial direction of the shaft portion 11b. The plunger 11a is cylindrical and has a through hole 11a1 penetrating in the axial direction. The shaft 11b is passed through the through hole 11a1. For this reason, the plunger 11a and the shaft part 11b are integrated, and the shaft 11b moves with the movement of the plunger 11a.

（コア１７）
コア１７は、シャフト部１１ｂの径方向外側に位置する。本実施形態では、コア１７は、磁性材料製であり、シャフト部１１ｂのフロント側に配置されてハウジング３０内に固定される。コア１７は、ハウジング３０の内面３０ｃに接触する円板状の大径部１７ｂと、大径部１７ｂのリア側の側面からリア側へ延びて大径部１７ｂよりも小径の小径部１７ｃと、を有する。大径部１７ｂと小径部１７ｃは同軸上に位置する。小径部１７ｃの径方向外側の側面１７ｃ１は、ボビン２５の内面２５ａに嵌合して固定される。小径部１７ｃのリア側の端部は、リア側に進むに従って径方向の幅が狭くなる凸部１７ｃ２を有する。凸部１７ｃ２は、コイル２９の通電時に、凸部１７ｃ２からプランジャ１１ａ側に延びる磁力線を集中させて、プランジャ１１ａをフロント側へ引っ張る力を増大する。 (Core 17)
The core 17 is located on the radially outer side of the shaft portion 11b. In the present embodiment, the core 17 is made of a magnetic material, and is disposed on the front side of the shaft portion 11 b and fixed in the housing 30. The core 17 includes a disk-shaped large-diameter portion 17b that contacts the inner surface 30c of the housing 30, a small-diameter portion 17c that extends from the rear side surface of the large-diameter portion 17b to the rear side and has a smaller diameter than the large-diameter portion 17b, Have The large diameter portion 17b and the small diameter portion 17c are positioned on the same axis. A radially outer side surface 17c1 of the small diameter portion 17c is fitted and fixed to the inner surface 25a of the bobbin 25. The rear end of the small diameter portion 17c has a convex portion 17c2 whose width in the radial direction becomes narrower toward the rear side. When the coil 29 is energized, the convex portion 17c2 concentrates magnetic lines extending from the convex portion 17c2 to the plunger 11a side, and increases the force for pulling the plunger 11a to the front side.

コア１７の軸方向の中心には、軸方向に貫通する貫通孔１７ａが設けられる。この貫通孔１７ａ内に配置されたすべり軸受１８を介してシャフト部１１ｂが通される。すべり軸受１８は円筒状であり、すべり軸受１８によって、シャフト部１１ｂが軸方向に移動自在に支持される。小径部１７ｃのリア側には、リア側が開口してフロント側へ窪む収容部１７ｃ３が設けられる。収容部１７ｃ３は、リア側から見たときに円形状である。収容部１７ｃ３は、プランジャ１１ａの移動に伴ってプランジャ１１ａのフロント側を挿入可能である。 A through hole 17a penetrating in the axial direction is provided at the center of the core 17 in the axial direction. The shaft portion 11b is passed through the slide bearing 18 disposed in the through hole 17a. The slide bearing 18 is cylindrical, and the shaft portion 11b is supported by the slide bearing 18 so as to be movable in the axial direction. On the rear side of the small-diameter portion 17c, a housing portion 17c3 that is open on the rear side and is recessed toward the front side is provided. The housing portion 17c3 has a circular shape when viewed from the rear side. The accommodating part 17c3 can insert the front side of the plunger 11a with the movement of the plunger 11a.

なお、コア１７の小径部１７ｃにおけるリア側の径方向外側端部と、ヨーク２１のフロント側の径方向外側端部との間には、円筒状のカラー３７が装着される。カラー３７は、コア１７及びヨーク２１を隙間を設けて連結する。 A cylindrical collar 37 is mounted between the rear-side radial outer end of the small-diameter portion 17 c of the core 17 and the front-side radial outer end of the yoke 21. The collar 37 connects the core 17 and the yoke 21 with a gap.

（ヨーク２１）
ヨーク２１は、プランジャ１１ａの径方向外側に位置する。本実施形態では、ヨーク２１は、フロント側が開口してリア側に底部２１ａを有して中心軸Ｊを中心とした有底筒状である。ヨーク２１内には、プランジャ１１ａを収容する大径孔部２１ｂと、大径孔部２１ｂのリア側に繋がって大径孔部２１ｂよりも小径の小径孔部２１ｃとを有する。大径孔部２１ｂ及び小径孔部２１ｃは、フロント側から見たときに円形状である。大径孔部２１ｂの内径は、プランジャ１１ａの外径よりも僅かに大きい。このため、大径孔部２１ｂ内をプランジャ１１ａが軸方向に移動可能である。小径孔部２１ｃ内には円筒状のすべり軸受１９が配置される。すべり軸受け１９内にシャフト部１１ｂが通される。このため、プランジャ１１ａを中央にしてプランジャ１１ａの軸方向両側から延びるシャフト部１１ｂは、すべり軸受１８，１９で支持される。つまり、シャフト部１１ｂは両端支持の状態で軸方向に移動可能である。 (Yoke 21)
The yoke 21 is located on the radially outer side of the plunger 11a. In the present embodiment, the yoke 21 has a bottomed cylindrical shape centered on the central axis J with the front side opened and the bottom 21a on the rear side. The yoke 21 has a large-diameter hole 21b that accommodates the plunger 11a and a small-diameter hole 21c that is connected to the rear side of the large-diameter hole 21b and has a smaller diameter than the large-diameter hole 21b. The large-diameter hole 21b and the small-diameter hole 21c are circular when viewed from the front side. The inner diameter of the large-diameter hole portion 21b is slightly larger than the outer diameter of the plunger 11a. Therefore, the plunger 11a can move in the axial direction in the large-diameter hole 21b. A cylindrical slide bearing 19 is disposed in the small diameter hole 21c. The shaft portion 11 b is passed through the slide bearing 19. For this reason, the shaft portion 11b extending from both axial sides of the plunger 11a with the plunger 11a in the center is supported by the slide bearings 18 and 19. That is, the shaft portion 11b is movable in the axial direction while being supported at both ends.

（ボビン２５）
ボビン２５は、コア１７の径方向外側の側面１７ｃ１を覆う。本実施形態では、ボビン２５は、樹脂製であり、コア１７及びヨーク２１の径方向外側の側面１７ｃ１、２１ｄを覆う。ボビン２５は、円筒部２５ｂと、円筒部２５ｂの軸方向両側に設けられて径方向外側へ突出するフランジ部２５ｃと、を有する。円筒部２５ｂにコイル２９が巻かれる。リア側のフランジ部２５ｃはハウジング３０の底部３０ａに対向して接触し、フロント側のフランジ部２５ｃは、コア１７の大径部１７ｂのリア側の面に対向して接触する。コイル２９が巻かれたボビン２５は、ターミナル２６（図３参照）とともに樹脂によって一体成型される。 (Bobbin 25)
The bobbin 25 covers the radially outer side surface 17 c 1 of the core 17. In the present embodiment, the bobbin 25 is made of resin and covers the radially outer side surfaces 17c1 and 21d of the core 17 and the yoke 21. The bobbin 25 includes a cylindrical portion 25b and flange portions 25c that are provided on both sides in the axial direction of the cylindrical portion 25b and project outward in the radial direction. A coil 29 is wound around the cylindrical portion 25b. The rear flange portion 25c contacts the bottom portion 30a of the housing 30 and the front flange portion 25c contacts the rear surface of the large diameter portion 17b of the core 17. The bobbin 25 around which the coil 29 is wound is integrally molded with resin together with the terminal 26 (see FIG. 3).

（コイル２９）
コイル２９は、ボビン２５に巻かれる。本実施形態では、コイル２９は、ボビン２５の円筒部２５ｂの径方向外側の外周面に沿って周方向に巻かれる。コイル２９の両端部はターミナル２６（図３参照）に設けられた端子に電気的に接続される。ボビン２５に巻かれたコイル２９は、ターミナル２６とともに樹脂により一体成型される。 (Coil 29)
The coil 29 is wound around the bobbin 25. In the present embodiment, the coil 29 is wound in the circumferential direction along the outer circumferential surface on the radially outer side of the cylindrical portion 25 b of the bobbin 25. Both ends of the coil 29 are electrically connected to terminals provided on the terminal 26 (see FIG. 3). The coil 29 wound around the bobbin 25 is integrally formed with resin together with the terminal 26.

＜固定板部７０＞
図４ａは、ソレノイド部１０を固定する固定板部７０の斜視図であり、図４ｂは取付孔部７５ａ、７５ｂ、７５ｃの拡大図である。固定板部７０は、図１及び図４ａ示すように、金属製であり、Ｙ軸方向に延びる長方形状である。固定板部７０は、軸方向に貫通する中央孔部７３と、中央孔部７３の径方向外側に位置し、加締め部３２が挿入される取付孔部７５ａ、７５ｂ、７５ｃと、取付孔部７５ａ、７５ｂ、７５ｃの径方向外側に位置し、固定部材８１を介して固定板部７０をバルブボディ５０に固定する固定部７９と、を有する。中央孔部７３の内径は、シャフト部１１ｂの外形よりも大きく、さらに、バルブボディ５０に設けられたスプール５２の外形よりも大きい。 <Fixing plate part 70>
4a is a perspective view of the fixing plate portion 70 for fixing the solenoid portion 10, and FIG. 4b is an enlarged view of the mounting hole portions 75a, 75b, and 75c. As shown in FIGS. 1 and 4a, the fixed plate portion 70 is made of metal and has a rectangular shape extending in the Y-axis direction. The fixed plate portion 70 has a central hole portion 73 that penetrates in the axial direction, mounting hole portions 75a, 75b, and 75c that are positioned radially outside the central hole portion 73 and into which the caulking portion 32 is inserted, and mounting hole portions. A fixing portion 79 that is positioned on the radially outer side of 75a, 75b, and 75c and fixes the fixing plate portion 70 to the valve body 50 via a fixing member 81; The inner diameter of the central hole 73 is larger than the outer shape of the shaft portion 11 b and further larger than the outer shape of the spool 52 provided in the valve body 50.

取付孔部７５ａ、７５ｂ、７５ｃは、中央孔部７３の径方向外側に周方向に等間隔を有して３つ設けられる。即ち、例えば、取付孔部７５ａは、周方向に隣接する他の取付孔部７５ｂとの間で１２０度の角度を有して位置する。取付孔部７５ａ、７５ｂ、７５ｃは、図４ｂに示すように、周方向に所定長さ（周方向長さＬｈ）を有して中心軸Ｊに対して周方向に円弧状に湾曲する長孔である。尚、ソレノイド部１０の加締め部３２が不等間隔に設定されている場合は、取付孔部７５ａ、７５ｂ、７５ｃも、中央孔部７３の径方向外側に周方向に不等間隔を有して３つ設けられこととなる。その場合は、中央孔部７３の周方向で規定された位置でのみ加締め部３２を取付孔部に挿入できなくなり、中央孔部７３の周方向において誤った位置での装着を防止できる事となる。 Three attachment holes 75a, 75b, and 75c are provided on the outer side in the radial direction of the central hole 73 at equal intervals in the circumferential direction. That is, for example, the attachment hole 75a is positioned at an angle of 120 degrees with another attachment hole 75b adjacent in the circumferential direction. As shown in FIG. 4b, the mounting holes 75a, 75b, 75c are elongated holes that have a predetermined length in the circumferential direction (circumferential length Lh) and are curved in an arc shape in the circumferential direction with respect to the central axis J. It is. When the caulking portions 32 of the solenoid portion 10 are set at unequal intervals, the mounting holes 75a, 75b, and 75c also have unequal intervals in the circumferential direction on the outer side in the radial direction of the central hole 73. Three will be provided. In that case, the caulking portion 32 cannot be inserted into the mounting hole only at a position defined in the circumferential direction of the central hole 73, and mounting at an incorrect position in the circumferential direction of the central hole 73 can be prevented. Become.

これらの取付孔部７５ａ、７５ｂ、７５ｃに加締め部３２が挿入される。なお、取付孔部７５ａ、７５ｂ、７５ｃは、同一形状であるので、取付孔部７５ａと加締め部３２との関係について、以下説明する。図２及び図４ｂに示すように、取付孔部７５ａの周方向長さＬｈは、加締め部３２の周方向長さＬｓよりも長い。また、取付孔部７５ａの径方向長さＴｈは、加締め部３２の径方向長さＴｓ（厚さ）よりも長い。このため、加締め部３２を取付孔部７５ａに挿入することができる。また、加締め部３２の軸方向長さＨ（高さ）は、図１及び図３に示すように、加締め部３２を取付孔部７５ａに貫通し、且つ径方向に折れ曲がっている状態で、固定板部７０に設けられた中央孔部７３を通るシャフト部１１ｂに対して、加締め部３２の先端部に隙間８３が生じる長さを有する。なお、本実施形態では、取付孔部７５ａ、７５ｂ、７５ｃを３つ設けた場合を示したが、加締め部３２の数に対応して４つ以上であってもよい。 The caulking portion 32 is inserted into the mounting hole portions 75a, 75b, and 75c. Since the attachment hole portions 75a, 75b, and 75c have the same shape, the relationship between the attachment hole portion 75a and the caulking portion 32 will be described below. 2 and 4b, the circumferential length Lh of the attachment hole 75a is longer than the circumferential length Ls of the caulking portion 32. Further, the radial length Th of the attachment hole 75a is longer than the radial length Ts (thickness) of the caulking portion 32. For this reason, the crimping part 32 can be inserted in the attachment hole part 75a. Further, the axial length H (height) of the caulking portion 32 is such that, as shown in FIGS. 1 and 3, the caulking portion 32 passes through the attachment hole portion 75a and is bent in the radial direction. The shaft portion 11b passing through the central hole portion 73 provided in the fixed plate portion 70 has such a length that a gap 83 is generated at the distal end portion of the caulking portion 32. In the present embodiment, the case where three attachment hole portions 75a, 75b, and 75c are provided is shown, but four or more may be provided corresponding to the number of caulking portions 32.

固定部７９は、図１及び図４ａに示すように、中心軸Ｊに対して周方向に配置された３つの取付孔部７５ａ、７５ｂ、７５ｃよりもＸ軸方向プラス側及びマイナス側に位置する２つの固定孔部７９ａを有する。これらの固定孔部７９ａは、ソレノイド部１０のハウジング３０よりも径方向外側に位置する。このため、固定部材８１としてボルト８１ａを使用した場合、ボルト８１ａの軸部８１ａ１を、固定孔部７９ａに貫通してバルブボディ５０に設けられた雌ねじ部５３ｂに螺合することで、固定板部７０をバルブボディ５０に固定することができる。この場合、固定孔部７９ａは、ハウジング３０の径方向外側に位置するので、ボルト８１ａを締結治具、例えばドライバで締結する際に、ハウジング３０が邪魔にならないので、ボルト８１ａの締結作業を容易に行うことができる。なお、固定部材８１は、ボルトに限るものでない。固定部材８１は、固定金具、リベット等でもよい。 As shown in FIGS. 1 and 4a, the fixing portion 79 is located on the plus side and the minus side in the X-axis direction with respect to the three mounting holes 75a, 75b, and 75c arranged in the circumferential direction with respect to the central axis J. Two fixing holes 79a are provided. These fixing hole portions 79 a are located on the radially outer side of the housing 30 of the solenoid portion 10. Therefore, when the bolt 81a is used as the fixing member 81, the fixing plate portion is formed by screwing the shaft portion 81a1 of the bolt 81a into the female screw portion 53b provided in the valve body 50 through the fixing hole 79a. 70 can be fixed to the valve body 50. In this case, since the fixing hole 79a is located on the outer side in the radial direction of the housing 30, the housing 30 does not get in the way when the bolt 81a is fastened with a fastening jig, for example, a screwdriver, so that the bolt 81a can be easily fastened. Can be done. The fixing member 81 is not limited to a bolt. The fixing member 81 may be a fixing bracket, a rivet or the like.

＜バルブボディ５０＞
バルブボディ５０は、図１に示すように、内部にオイルの流路となる複数の油路が設けられる。また、バルブボディ５０内には、複数の油路に繋がるスプール孔５１が設けられる。スプール孔５１は、バルブボディ５０を軸方向に貫通する。スプール孔５１内にスプール５２が挿入される。本実施形態では、スプール孔５１には４つの油路５５が繋がる。 <Valve body 50>
As shown in FIG. 1, the valve body 50 is provided with a plurality of oil passages serving as oil passages. Further, a spool hole 51 connected to a plurality of oil passages is provided in the valve body 50. The spool hole 51 penetrates the valve body 50 in the axial direction. A spool 52 is inserted into the spool hole 51. In the present embodiment, four oil passages 55 are connected to the spool hole 51.

スプール５２は、円柱状であり、スプール孔５１の内径と略同等の外径を有する大径部５２ａと、大径部５２ａよりも小さい外径を有する小径部５２ｂとを有する。スプール５２の材料には、例えば、オイルと透磁率の異なるアルミニウム等の金属が用いられる。 The spool 52 has a columnar shape, and includes a large diameter portion 52a having an outer diameter substantially equal to the inner diameter of the spool hole 51, and a small diameter portion 52b having an outer diameter smaller than the large diameter portion 52a. As the material of the spool 52, for example, a metal such as aluminum having a magnetic permeability different from that of oil is used.

スプール孔５１の軸方向一方側（フロント側）の端部には、スプール孔５１のフロント側の開口を塞ぐ閉塞部材５７が挿入される。閉塞部材５７とスプール５２のフロント側端部との間には、圧縮ばね６０が配置される。このため、スプール５２は、圧縮ばね６０によってリア側へ附勢される。 A blocking member 57 that closes the opening on the front side of the spool hole 51 is inserted into the end portion on the one side (front side) in the axial direction of the spool hole 51. A compression spring 60 is disposed between the closing member 57 and the front side end of the spool 52. For this reason, the spool 52 is biased to the rear side by the compression spring 60.

バルブボディ５０は、固定板部７０の固定部７９を固定する取付部５３を有する。本実施形態では、取付部５３は、バルブボディ５０のリア側のＸ軸方向プラス側及びマイナス側に位置する。取付部５３は、リア側の端部にＸ軸方向に延びる平面部５３ａを有する。平面部５３ａには、固定板部７０の固定孔部７９ａに対向する位置からフロント側へ延びて、ボルト８１ａが螺合可能な雌ねじ部５３ｂが設けられる。 The valve body 50 has an attachment portion 53 that fixes the fixing portion 79 of the fixing plate portion 70. In the present embodiment, the attachment portion 53 is positioned on the plus side and the minus side in the X-axis direction on the rear side of the valve body 50. The attachment portion 53 has a flat portion 53a extending in the X-axis direction at the rear end portion. The flat surface portion 53a is provided with a female screw portion 53b that extends from the position facing the fixing hole 79a of the fixing plate portion 70 to the front side and can be screwed into the bolt 81a.

また、バルブボディ５０は、取付部５３に固定板部７０が固定された状態で、固定板部７０側が開口して軸方向一方側へ窪み、固定板部７０に加締められた加締め部３２を収容する収容部６２を有する。本実施形態では、収容部６２は、リア側から見たときに円形状である。収容部６２の内径は、ハウジング３０の外径よりも大きい。また、収容部６２の軸方向深さは、中心軸方向へ折れ曲がる加締め部３２の軸方向長さよりも大きい。このため、折れ曲がる加締め部３２が収容部６２に当接することなく、加締め部３２を収容部６２内に収容することができる。 In the valve body 50, the fixed plate portion 70 is fixed to the mounting portion 53, and the fixed plate portion 70 side is opened and recessed toward one side in the axial direction, and the crimped portion 32 is crimped to the fixed plate portion 70. It has the accommodating part 62 which accommodates. In this embodiment, the accommodating part 62 is circular when viewed from the rear side. The inner diameter of the accommodating portion 62 is larger than the outer diameter of the housing 30. Moreover, the axial direction depth of the accommodating part 62 is larger than the axial direction length of the crimping part 32 bent in the central axis direction. For this reason, the caulking part 32 can be accommodated in the accommodating part 62 without the caulking part 32 that is bent coming into contact with the accommodating part 62.

＜電磁弁の作用・効果＞
次に、電磁弁１の作用・効果について説明する。図１に示すように、電磁弁１のソレノイド部１０のコイル２９が励磁されると、プランジャ１１ａがコア１７側に吸引される。このため、プランジャ１１ａを固定するシャフト部１１ｂがプランジャ１１ａとともにフロント側に移動する。なお、シャフト部１１ｂの移動時には、圧縮ばね６０の附勢に抗して移動する。したがって、シャフト部１１ｂに当接するスプール５２がフロント側へ移動する。一方、ソレノイド部１０のコイル２９が非励磁状態になると、プランジャ１１ａは、コア１７からの吸引力が無くなる。このため、圧縮ばね６０のフロント側へ向く附勢力によって、スプール５２はフロント側へ移動する。また、スプール５２の移動に伴ってソレノイド部１０のシャフト部１１ｂ及びプランジャ１１ａもフロント側へ移動する。 <Action and effect of solenoid valve>
Next, the operation and effect of the electromagnetic valve 1 will be described. As shown in FIG. 1, when the coil 29 of the solenoid unit 10 of the solenoid valve 1 is excited, the plunger 11a is attracted to the core 17 side. For this reason, the shaft part 11b which fixes the plunger 11a moves to the front side together with the plunger 11a. When the shaft portion 11b moves, the shaft portion 11b moves against the bias of the compression spring 60. Accordingly, the spool 52 that contacts the shaft portion 11b moves to the front side. On the other hand, when the coil 29 of the solenoid unit 10 is in a non-excited state, the plunger 11 a loses the attractive force from the core 17. For this reason, the spool 52 moves to the front side by the urging force of the compression spring 60 directed to the front side. As the spool 52 moves, the shaft portion 11b and the plunger 11a of the solenoid portion 10 also move to the front side.

（１）ここで、本実施形態に係る電磁弁１のハウジング３０は、加締め部３２が取付孔部７５ａ、７５ｂ、７５ｃを貫通し、且つ径方向に折れ曲がっている事により、固定板部７０に固定される。ここで、加締め部３２を固定板部７０に加締める際に、加締め部３２が固定板部７０から突出する側には、バルブボディ５０等の障害物は存在しない。このため、加締め部３２を固定板部７０に加締める加締め冶具は障害物に邪魔されることなく、加締め部３２を加締めることができる。このため、加締め作業の作業性を向上することができる。 (1) Here, in the housing 30 of the solenoid valve 1 according to the present embodiment, the caulking portion 32 passes through the mounting holes 75a, 75b, and 75c and is bent in the radial direction. Fixed to. Here, when the caulking portion 32 is caulked to the fixed plate portion 70, there is no obstacle such as the valve body 50 on the side where the caulking portion 32 protrudes from the fixed plate portion 70. For this reason, the crimping jig | tool which crimps the crimping part 32 to the fixed board part 70 can crimp the crimping part 32, without being obstructed by an obstruction. For this reason, the workability | operativity of a crimping operation | work can be improved.

（２）また、プランジャ１１ａがコア１７に対して軸方向に移動することで、プランジャ１１ａの中心軸部分に装着されたシャフト部１１ｂを軸方向に移動させることができる。 (2) Moreover, when the plunger 11a moves in the axial direction with respect to the core 17, the shaft portion 11b attached to the central axis portion of the plunger 11a can be moved in the axial direction.

（３）また、加締め部３２は、軸部１１側へ倒されてハウジング３０が固定板部７０に固定されるので、加締め部３２が軸部１１に対して径方向外側へ倒される場合と比較して、固定部７９の位置をソレノイド部１０のハウジング３０に隣接した位置に配置することができる。このため、バルブボディ５０の大型化を抑制することができる。 (3) Further, since the caulking portion 32 is tilted toward the shaft portion 11 and the housing 30 is fixed to the fixing plate portion 70, the caulking portion 32 is tilted radially outward with respect to the shaft portion 11. As compared with the above, the position of the fixing portion 79 can be arranged at a position adjacent to the housing 30 of the solenoid portion 10. For this reason, the enlargement of the valve body 50 can be suppressed.

（４）また、加締め部３２及び取付孔部７５ａ、７５ｂ、７５ｃの夫々は、３個以上設けられて周方向に均等に配置される。このため、加締め部３２を固定板部７０に対して加締めを行うと、軸部１１側に向かって均等に加締め力が作用する。よって、バルブボディ５０のスプール５２の中心軸に対する軸部１１のずれ（偏心）を抑制することができる。 (4) Further, each of the caulking portion 32 and the mounting hole portions 75a, 75b, and 75c is provided in three or more and is equally arranged in the circumferential direction. For this reason, if the crimping part 32 is crimped with respect to the fixed plate part 70, a crimping force will act equally toward the axial part 11 side. Therefore, the shift | offset | difference (eccentricity) of the axial part 11 with respect to the central axis of the spool 52 of the valve body 50 can be suppressed.

（５）また、加締め部３２が取付孔部７５ａ、７５ｂ、７５ｃを貫通する事により、図１及び図３に示すように、加締め部３２間のハウジング３０の軸方向一方側の周端部３０ｂの端面が固定板部７０の軸方向他方側の側面７０ａに接触する。このため、加締め部３２を固定板部７０に加締めたときに、固定板部７０に対するハウジング３０の傾きの増大を抑制することができる。 (5) Further, as the caulking portion 32 penetrates through the mounting holes 75a, 75b, and 75c, as shown in FIG. 1 and FIG. The end surface of the portion 30 b contacts the side surface 70 a on the other axial side of the fixed plate portion 70. For this reason, when the caulking portion 32 is caulked to the fixed plate portion 70, an increase in the inclination of the housing 30 with respect to the fixed plate portion 70 can be suppressed.

（６）また、バルブボディ５０は、図１に示すように、固定板部７０の固定部７９が固定される取付部５３を有する。また、バルブボディ５０は、取付部５３に固定部７９が固定された状態で、固定板部７０に加締められた加締め部３２を収容する収容部６２を有する。このため、取付部５３に固定部７９が取り付けられた状態で、固定板部７０から突出する加締め部３２が収容部６２内に収容されるので、加締め部３２がバルブボディ５０に接触する虞はない。よって、固定部７９を取付部５３に強固に固定することができる。 (6) Moreover, the valve body 50 has the attaching part 53 to which the fixing part 79 of the fixing plate part 70 is fixed, as shown in FIG. Further, the valve body 50 includes an accommodating portion 62 that accommodates the caulking portion 32 that is crimped to the fixing plate portion 70 in a state where the fixing portion 79 is fixed to the attachment portion 53. For this reason, in the state where the fixing portion 79 is attached to the attachment portion 53, the caulking portion 32 protruding from the fixing plate portion 70 is accommodated in the accommodating portion 62, so that the caulking portion 32 contacts the valve body 50. There is no fear. Therefore, the fixing portion 79 can be firmly fixed to the attachment portion 53.

[第１実施形態の変形例]
（孔部群７２を複数設けた変形例）
図１に示した第１実施形態に係る電磁弁１では、１つのソレノイド部１０が固定板部７０を介してバルブボディ５０に固定されている。しかしながら、この構造に限定されるものではなく、例えば、図５及び図６に示すように、固定板部７０に複数のソレノイド部１０を固定することもできる（変形例１）。 [Modification of First Embodiment]
(Modification in which a plurality of hole groups 72 are provided)
In the electromagnetic valve 1 according to the first embodiment shown in FIG. 1, one solenoid part 10 is fixed to the valve body 50 via a fixing plate part 70. However, it is not limited to this structure, for example, as shown in FIG.5 and FIG.6, the some solenoid part 10 can also be fixed to the fixed board part 70 (modification 1).

図５は、第１実施形態の変形例に係る電磁弁１をバルブボディ５０側から見た斜視図である。図６は、第１実施形態の変形例に係る電磁弁１をソレノイド部１０側から見た斜視図である。固定板部７０は、中心軸Ｊに対して直交する方向に延びる。また、固定板部７０は、図４ａに示すように、１つのソレノイド部１０に対して固定板部７０に設けられる中央孔部７３及び取付孔部７５ａ、７５ｂ、７５ｃからなる孔部群７２を複数有する。複数の孔部群７２は、固定板部７０の延びる方向に沿って間隔を有して固定板部７０に設けられる。固定板部７０は、複数の孔部群７２の夫々にソレノイド部１０が固定されて、複数のソレノイド部１０を有する。この複数のソレノイド部１０が固定された固定板部７０をバルブボディ５０に固定して電磁弁１が完成する（図５及び図６参照）。 FIG. 5 is a perspective view of the electromagnetic valve 1 according to a modification of the first embodiment as viewed from the valve body 50 side. FIG. 6 is a perspective view of the electromagnetic valve 1 according to a modification of the first embodiment as viewed from the solenoid unit 10 side. The fixed plate portion 70 extends in a direction orthogonal to the central axis J. Further, as shown in FIG. 4a, the fixed plate portion 70 includes a hole portion group 72 including a central hole portion 73 and attachment hole portions 75a, 75b, and 75c provided in the fixed plate portion 70 with respect to one solenoid portion 10. Have multiple. The plurality of hole groups 72 are provided in the fixed plate portion 70 with intervals along the direction in which the fixed plate portion 70 extends. The fixed plate portion 70 includes a plurality of solenoid portions 10 in which the solenoid portion 10 is fixed to each of the plurality of hole groups 72. The fixed plate portion 70 to which the plurality of solenoid portions 10 are fixed is fixed to the valve body 50 to complete the electromagnetic valve 1 (see FIGS. 5 and 6).

この変形例では、複数の孔部群７２は、固定板部７０の延びる方向に沿って間隔を有して固定板部７０に設けられる。ここで、加締め部３２を固定板部７０に加締める際に、加締め部３２が固定板部７０から突出する側には、バルブボディ５０等の障害物は存在しない。このため、加締め部３２を固定板部７０に加締める加締め冶具は障害物に邪魔されることなく、加締め部３２を加締めることができる。このため、複数のソレノイド部１０を固定板部７０に取り付ける作業の作業性がよい電磁弁１を提供することができる。 In this modification, the plurality of hole groups 72 are provided in the fixed plate portion 70 with intervals along the direction in which the fixed plate portion 70 extends. Here, when the caulking portion 32 is caulked to the fixed plate portion 70, there is no obstacle such as the valve body 50 on the side where the caulking portion 32 protrudes from the fixed plate portion 70. For this reason, the crimping jig | tool which crimps the crimping part 32 to the fixed board part 70 can crimp the crimping part 32, without being obstructed by an obstruction. For this reason, it is possible to provide the solenoid valve 1 with good workability in attaching the plurality of solenoid parts 10 to the fixed plate part 70.

（隣接する孔部群の取付孔部の配置に関する変形例）
孔部群７２の取付孔部７５ａ、７５ｂ、７５ｃは、図４ａに示すように、固定板部７０に設けられた中央孔部７３の径方向外側に周方向に間隔を有して複数設けられる。また、固定板部７０に隣接して設けられた一方の孔部群７２の複数の取付孔部７５ａ、７５ｂ、７５ｃのうち固定板部７０の延びる方向に対して交差する方向に配置された一対の取付孔部７５ａ、７５ｂ間の領域７８内に、他方の孔部群７２の複数の取付孔部７５ａ、７５ｂ、７５ｃのうちの一つの取付孔部７５ｃが位置してもよい。本実施形態では、８つの孔部群７２が固定板部７０に設けられる（変形例２）。 (Modification regarding arrangement of mounting holes in adjacent hole group)
As shown in FIG. 4 a, a plurality of mounting hole portions 75 a, 75 b, 75 c of the hole group 72 are provided on the radially outer side of the central hole portion 73 provided in the fixed plate portion 70 with a circumferential interval. . In addition, a pair of a plurality of mounting hole portions 75 a, 75 b, 75 c of one hole group 72 provided adjacent to the fixed plate portion 70 is arranged in a direction intersecting with the extending direction of the fixed plate portion 70. One attachment hole 75c of the plurality of attachment holes 75a, 75b, 75c of the other hole group 72 may be located in the region 78 between the attachment holes 75a, 75b. In the present embodiment, eight hole groups 72 are provided in the fixed plate portion 70 (Modification 2).

この変形例では、一方の孔部群７２の一対の取付孔部７５ａ、７５ｂ間の領域７８内に、他方の孔部群７２の複数の取付孔部７５ａ、７５ｂ、７５ｃのうちの一つの取付孔部７５ｂが位置する。このため、隣接するハウジング３０同志を近づけることがで、電磁弁１の大型化を抑制することができる。 In this modification, one attachment of a plurality of attachment holes 75a, 75b, 75c of the other hole group 72 is provided in a region 78 between the pair of attachment holes 75a, 75b of one hole group 72. The hole 75b is located. For this reason, the enlargement of the solenoid valve 1 can be suppressed by bringing the adjacent housings 30 close to each other.

以上、本発明の好ましい実施形態について説明したが、本発明は、これらの実施形態に限定されず、その要旨の範囲内で種々の変形および変更が可能である。これらの実施形態及びその変形は、発明の範囲及び要旨に含まれると同時に、特許請求の範囲に記載された発名とその均等の範囲に含まれる。 As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary. These embodiments and modifications thereof are included in the scope and gist of the invention, and at the same time, are included in the names of claims and their equivalents.

１電磁弁
１０ソレノイド部
１１軸部
１１ａプランジャ
１１ｂシャフト部
１７コア
２５ボビン
２９コイル
３０ハウジング
３０ａ底部
３０ｂ周壁部
３２加締め部
５０バルブボディ
５２スプール
５３取付部
６２収容部
７０固定板部
７０ａ面
７２孔部群
７３中央孔部
７５ａ、７５ｂ、７５ｃ取付孔部
７８領域
７９固定部 DESCRIPTION OF SYMBOLS 1 Solenoid valve 10 Solenoid part 11 Shaft part 11a Plunger 11b Shaft part 17 Core 25 Bobbin 29 Coil 30 Housing 30a Bottom part 30b Peripheral wall part 32 Clamping part 50 Valve body 52 Spool 53 Mounting part 62 Storage part 70 Fixing plate part 70a Surface 72 Hole Part group 73 Central hole 75a, 75b, 75c Mounting hole 78 Region 79 Fixed part

Claims

A solenoid that moves the shaft by exciting the coil;
A valve body that is located on one side in the axial direction of the solenoid part and has a spool that can move with the movement of the shaft part;
A fixing plate portion positioned between the solenoid portion and the valve body, and fixing the solenoid portion to the valve body;
Have
The solenoid part is
The shaft portion;
A core located on the radially outer side of the shaft portion;
A bobbin disposed radially outside the core;
The coil wound around the bobbin;
A bottomed cylindrical housing that houses the shaft, the core, the bobbin, and the coil, and has a bottom on the other side in the axial direction;
Have
The housing has a caulking portion that protrudes from one end in the axial direction to one side in the axial direction,
The fixed plate portion is
A central hole penetrating in the axial direction;
A mounting hole that is located radially outside the central hole and into which the crimped portion is inserted;
A fixing portion that is located on the radially outer side of the mounting hole portion and fixes the fixing plate portion to the valve body via a fixing member;
Have
The housing is an electromagnetic valve that is fixed to the fixed plate portion by the caulking portion passing through the attachment hole portion and being bent in a radial direction.

The shaft portion is
A plunger located radially outside the shaft portion and moving in the axial direction relative to the core;
A shaft portion attached to a central axis portion of the plunger;
The solenoid valve according to claim 1, comprising:

3. The solenoid valve according to claim 1, wherein the caulking portion protruding from the attachment hole portion is tilted toward the shaft portion side and the housing is fixed to the fixing plate portion.

The solenoid valve according to any one of claims 1 to 3, wherein each of the caulking portion and the attachment hole portion is provided with three or more, and is equally disposed in a circumferential direction.

The circumferential end portion on one side in the axial direction of the housing between the caulking portions adjacent to each other in the circumferential direction is such that the caulking portion penetrates the mounting hole portion, so that the end surface of the circumferential end portion is the fixing plate portion. The electromagnetic valve according to claim 4, wherein the electromagnetic valve is in contact with the other surface in the axial direction.

The valve body has an attachment portion to which the fixing portion of the fixing plate portion is fixed,
The valve body accommodates the caulking portion that is open on the fixing plate portion side and is depressed toward one side in the axial direction and is caulked to the fixing plate portion in a state where the fixing portion is fixed to the mounting portion. The solenoid valve according to any one of claims 1 to 5, further comprising a housing portion.

The fixed plate portion extends in a direction orthogonal to the axial direction,
The fixed plate portion is
A plurality of hole groups each including the central hole portion and the attachment hole portion provided in the fixed plate portion with respect to one solenoid portion;
The plurality of hole groups are provided in the fixed plate portion with an interval along a direction in which the fixed plate portion extends,
The solenoid valve according to any one of claims 1 to 6, wherein the fixed plate portion includes a plurality of solenoid portions in which the solenoid portion is fixed to each of the plurality of hole groups.

A plurality of the mounting hole portions of the hole group are provided at intervals in the circumferential direction on the radially outer side of the central hole portion provided in the fixed plate portion,
A region between a pair of mounting holes arranged in a direction intersecting with the direction in which the fixing plate part extends among a plurality of mounting hole parts of the one hole group provided adjacent to the fixing plate part. The solenoid valve according to claim 7, wherein one of the plurality of mounting hole portions of the other hole group is positioned inside.