JP2014047862A - Electromagnetic valve - Google Patents

Electromagnetic valve Download PDF

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Publication number
JP2014047862A
JP2014047862A JP2012191988A JP2012191988A JP2014047862A JP 2014047862 A JP2014047862 A JP 2014047862A JP 2012191988 A JP2012191988 A JP 2012191988A JP 2012191988 A JP2012191988 A JP 2012191988A JP 2014047862 A JP2014047862 A JP 2014047862A
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cylindrical
ring
valve
mounting hole
peripheral surface
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Shinji Seto
信治 瀬戸
Isao Hayase
功 早瀬
Akemichi Shimazu
明道 島津
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Hitachi Astemo Ltd
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Hitachi Automotive Systems Ltd
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  • Regulating Braking Force (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic valve that reduces a high precision processing process and can be easily assembled under utilization of caulking processing at a low cost and fast speed.SOLUTION: The present invention is an electromagnetic valve comprising: a housing formed with a flow passage and a valve fitting hole communicated with the flow passage; a cylindrical member arranged in the valve fitting hole; a coil arranged at an outer periphery of the cylindrical member; a core arranged at one side of the cylindrical member to generate suction force when the coil is electrically energized; a valve body moved along an axis of the cylindrical member under suction force when the coil is electrically energized; a body arranged within the valve fitting hole while receiving the other end of the cylindrical member and provided with a cylindrical flange at the extremity end of an opening side of the valve fitting hole; a seat member arranged at an inner periphery of the body and formed with a flow passage that is opened or closed in response to moving-toward or moving-away action of the valve body; a ring arranged along an inner peripheral surface of the cylindrical part of the cylindrical flange and a seal portion in which at least a part of the housing is caulked and deformed to reduce a diameter of the cylindrical part of the cylindrical flange so as to restrict leakage of working fluid from inside the valve fitting hole.

Description

本発明は、主にブレーキ液圧制御装置に用いるのに好適な電磁弁に関する。   The present invention relates to a solenoid valve suitable for use mainly in a brake fluid pressure control device.

本発明の背景技術の一つとして、例えば特許文献1がある。ここには、円筒部材がバルブハウジングに固定され、バルブハウジングがハウジングにかしめ固定される構造の常閉型の電磁弁が記載されている。   As one of background arts of the present invention, for example, there is Patent Document 1. Here, a normally closed electromagnetic valve having a structure in which a cylindrical member is fixed to a valve housing and the valve housing is fixed to the housing by caulking is described.

また、特許文献2には、プランジャを収容するプランジャ収納スリーブに、スリーブとスリーブフランジを備えて、ハウジングに組み付ける電磁弁が記載されている。この電磁弁では、スリーブフランジに設けたフランジ部を組付け孔の段部に着座させ、スリーブの外周に隙間嵌めされる取付けリングを円筒部の内側に圧入してフランジ部を段部の座面に押圧している。さらに、その円筒部を組付け孔の内周面に陥入させてプランジャ収納スリーブをハウジングに固定するようにしている。   Patent Document 2 describes a solenoid valve that is provided with a sleeve and a sleeve flange in a plunger housing sleeve that houses a plunger, and is assembled to the housing. In this solenoid valve, the flange portion provided on the sleeve flange is seated on the step portion of the assembly hole, and a mounting ring that is fitted into the outer periphery of the sleeve is press-fitted inside the cylindrical portion, and the flange portion is seated on the step portion. Is pressed. Further, the plunger portion is fixed to the housing by inserting the cylindrical portion into the inner peripheral surface of the assembly hole.

特開2008−19919号公報JP 2008-19919 A 特開2011−64270号公報JP 2011-64270 A

特許文献1に記載の電磁弁では、外部漏れを防ぐため、ハウジングとバルブボディのフランジ部をかしめ固定し、フランジ部より上側に構成されたバルブボディとシリンダとのシール部を液密に固定する必要があり、その分、電磁弁の磁路を確保するためには、バルブボディのハウジング固定部を深くする必要があり、全体のサイズが幾分大きくなる。   In the solenoid valve described in Patent Document 1, in order to prevent external leakage, the flange portion of the housing and the valve body is caulked and fixed, and the seal portion between the valve body and the cylinder configured above the flange portion is liquid-tightly fixed. Therefore, in order to secure the magnetic path of the electromagnetic valve, it is necessary to deepen the housing fixing portion of the valve body, and the overall size is somewhat increased.

特許文献2に記載の電磁弁では、スリーブフランジのフランジ部をリングで押圧し、その後、取付けリングをかしめ固定するため、スリーブフランジと取付けリングのハウジングへの固定に2回の工程が必要であった。また、取付けリングを圧入した際に、取付けリングとフランジ部との間に隙間ができないようにするため、スリーブ又は取付けリングを高精度に加工する必要があり、そのため、製造コストが高くなる。   In the electromagnetic valve described in Patent Document 2, the flange portion of the sleeve flange is pressed with a ring, and then the mounting ring is caulked and fixed, so that two steps are required for fixing the sleeve flange and the mounting ring to the housing. It was. Further, when the mounting ring is press-fitted, it is necessary to process the sleeve or the mounting ring with high accuracy in order to prevent a gap between the mounting ring and the flange portion, which increases the manufacturing cost.

本発明の目的は、上記の課題を解決するため、電磁弁の製造工程において、加工工程を減じると共に、高精度の加工が必要な箇所を削減して、他の部品に不要な歪を与えることなしに、かしめ加工を利用して簡単に組立てることができる電磁弁を、低コストで迅速に提供することにある。   The object of the present invention is to reduce the number of machining steps in the electromagnetic valve manufacturing process and to reduce the number of parts that require high-precision machining, and to give unnecessary distortion to other parts in order to solve the above-described problems. In addition, it is an object of the present invention to provide a solenoid valve that can be easily assembled by using caulking and quickly at low cost.

上記課題を解決するため、本発明に係る電磁弁は、流路と前記流路に連通する弁取付孔が形成されたハウジングと、前記弁取付孔内に設けられた筒状部材と、前記筒状部材の外周に配置されたコイルと、前記筒状部材の一端側に設けられて前記コイルに通電されたときに吸引力を発生するコアと、前記コアによって発生した吸引力により前記筒状部材の軸方向に沿って移動する弁体と、前記筒状部材の他端側を受けて前記弁取付孔内に配置されると共に前記弁取付孔の開口側の先端に円筒つば部を備えたボディと、前記ボディの内周に配置されて前記弁体の移動による接離で開閉する流路が形成されたシート部材と、前記円筒つば部の円筒部の内周面に面して配置されるリングと、を備えて、前記ハウジングの少なくとも一部がかしめ変形されて前記円筒つば部の円筒部を縮径させてシール部を構成し、前記弁取付孔内からの作動油の漏れを抑制することを特徴とする。   In order to solve the above problems, a solenoid valve according to the present invention includes a flow path, a housing in which a valve mounting hole communicating with the flow path is formed, a cylindrical member provided in the valve mounting hole, and the cylinder. A coil disposed on the outer periphery of the cylindrical member, a core provided at one end of the cylindrical member and generating an attractive force when the coil is energized, and the cylindrical member by the attractive force generated by the core A valve body that moves along the axial direction of the cylinder, and a body that receives the other end of the cylindrical member and is disposed in the valve mounting hole and has a cylindrical collar at the opening end of the valve mounting hole. And a seat member disposed on the inner periphery of the body and formed with a flow path that opens and closes by contact and separation by movement of the valve body, and is disposed facing the inner peripheral surface of the cylindrical portion of the cylindrical collar portion. And at least a part of the housing is deformed by caulking. It said cylindrical and flange portions reduced in diameter the cylindrical portion of the Configure seal portion, which comprises suppressing the leakage of hydraulic fluid from the valve mounting hole Te.

本発明によれば、リングとハウジングとの間でかしめ固定し、リングよりも下側にシリンダとボディの外部漏れを防ぐシール部を構成しているため小型の電磁弁とすることができる。また、リングとボディのハウジングへの固定が、1回のかしめ工程で済むこと、また、この際、ボディの最大径部外周とハウジングの間、ボディの最大径部の内周とリングの間に隙間があってもかしめの際の押圧により、隙間を埋めて、固定することができ、高精度の加工が必要ないことから、低コストの電磁弁とすることができる。   According to the present invention, a small solenoid valve can be obtained because the seal portion is configured to be caulked and fixed between the ring and the housing and prevent external leakage of the cylinder and the body below the ring. In addition, the ring and the body can be fixed to the housing in a single caulking process. Also, at this time, between the outer diameter of the maximum diameter portion of the body and the housing and between the inner periphery of the maximum diameter portion of the body and the ring. Even if there is a gap, the gap can be filled and fixed by pressing at the time of caulking, and since high-precision processing is not required, a low-cost solenoid valve can be obtained.

本発明に係る実施例1の電磁弁の断面図を示す。Sectional drawing of the solenoid valve of Example 1 which concerns on this invention is shown. 実施例1の電磁弁の、リング付近のかしめ固定前の状態における断面拡大図を示す。The cross-sectional enlarged view in the state before caulking fixation of the vicinity of a ring of the solenoid valve of Example 1 is shown. 実施例1の電磁弁の、リング付近のかしめ途中の状態における断面拡大図を示す。The cross-sectional enlarged view in the state in the middle of caulking near the ring of the solenoid valve of Example 1 is shown. 実施例1の電磁弁の、リング付近のかしめ固定後の状態における拡大図を示す。The enlarged view in the state after caulking fixation of the vicinity of a ring of the solenoid valve of Example 1 is shown. 本発明に係る実施例2の電磁弁のリング付近のかしめ固定前における断面拡大図を示す。The cross-sectional enlarged view before crimping fixation of the ring vicinity of the solenoid valve of Example 2 which concerns on this invention is shown. 実施例2の電磁弁のリング付近のかしめ固定後における断面拡大図を示す。The cross-sectional enlarged view after crimping fixation of the ring vicinity of the solenoid valve of Example 2 is shown.

以下、本発明を実施するための形態として、図面を参照して実施例について説明する。
[実施例1]
図1は、本発明の実施例1の電磁弁100を示す。電磁弁100は、最外径部に円筒つば部3bを有するつば部3aを有した段部を持った円筒形状のボディ3と、ボディ3の内部に挿入され、シート面5aを形成するシート部材5と、ボディ3の円筒つば部3bの内側に設置されるリング形状のリング12と、ボディ3に固定される円筒状のシリンダ6と、シリンダ6内に摺動自在に設置され、可動コアとなる円柱状のプランジャ7と、プランジャ7の先端部に同軸上に固定配置され、シート部材5のシート面5aとの間で接触又は離間することで流路を開閉する弁体8と、シリンダ6の外側に配置された円筒状のコイル10と、コイル10の外周側には磁気回路を構成するヨーク11と、プランジャ7の弁体8と反対側にはシリンダ6に固定配置された固定コア18と、から構成され、段部を有する弁取付孔20が形成されたハウジング1内に固定される構造である。
Hereinafter, embodiments will be described with reference to the drawings as modes for carrying out the present invention.
[Example 1]
FIG. 1 shows a solenoid valve 100 according to a first embodiment of the present invention. The solenoid valve 100 includes a cylindrical body 3 having a step portion having a collar portion 3a having a cylindrical collar portion 3b at the outermost diameter portion, and a seat member that is inserted into the body 3 to form a seat surface 5a. 5, a ring-shaped ring 12 installed inside the cylindrical collar portion 3b of the body 3, a cylindrical cylinder 6 fixed to the body 3, a slidable installation in the cylinder 6, and a movable core A cylindrical plunger 7, a valve body 8 that is coaxially fixed to the tip of the plunger 7 and opens or closes the flow path by contacting or separating from the seat surface 5a of the seat member 5, and a cylinder 6 A cylindrical coil 10 arranged on the outer side of the coil 10, a yoke 11 constituting a magnetic circuit on the outer peripheral side of the coil 10, and a fixed core 18 fixed to the cylinder 6 on the opposite side of the valve body 8 of the plunger 7. And is fixed in the housing 1 in which a valve mounting hole 20 having a step portion is formed. Is that structure.

ハウジング1には、弁取付孔20の側面側に第1流通路15と、弁取付孔20の底部に第2流通路16とが形成されている。ハウジング1に設けた弁取付孔20は、一番深いところの径が最も小さく、深さが浅くなると段階的に径が大きくなっている。   In the housing 1, a first flow path 15 is formed on the side of the valve mounting hole 20, and a second flow path 16 is formed on the bottom of the valve mounting hole 20. The valve mounting hole 20 provided in the housing 1 has the smallest diameter at the deepest portion, and the diameter gradually increases as the depth becomes shallower.

ボディ3は、底の部分に連通孔3f、側面部に連通孔3eを設け、底の部分の径が最も小さく、段階的に径が大きくなる構成であり、その底の部分は、弁取付孔20の最小径の部分に圧入固定される。また底部より一段径が大きい部分の内径側にはシート部材5が圧入固定される。更に径が大きくなったところの内径側にはシリンダ6の下端部が圧入されて溶接固定される。円筒つば部3bの内周側にはリング12が設置される。また、つば部3aの径が変化する部分の底(つば底部3c)は、弁取付孔20の段部の底面20b(図2参照)と接触配置される。   The body 3 has a communication hole 3f in the bottom part and a communication hole 3e in the side part, and the bottom part has the smallest diameter and the diameter gradually increases. It is press-fitted into the 20 smallest diameter part. In addition, the sheet member 5 is press-fitted and fixed to the inner diameter side of the portion having a larger step diameter than the bottom portion. Further, the lower end portion of the cylinder 6 is press-fitted into the inner diameter side where the diameter is increased, and is fixed by welding. A ring 12 is installed on the inner peripheral side of the cylindrical collar portion 3b. Further, the bottom of the portion where the diameter of the collar portion 3a changes (the collar bottom portion 3c) is arranged in contact with the bottom surface 20b of the step portion of the valve mounting hole 20 (see FIG. 2).

シート部材5は、底部を持った略円筒形状で、シート部材5の底部がボディ3の底部とは反対側となるように設置される。また、シート部材5の底部には連通孔5bが設けられ、連通孔5bを開閉する弁体8と接離するシート面5aが設けられる。   The sheet member 5 has a substantially cylindrical shape with a bottom portion, and is installed so that the bottom portion of the sheet member 5 is opposite to the bottom portion of the body 3. Further, a communication hole 5b is provided at the bottom of the seat member 5, and a seat surface 5a that contacts and separates from the valve body 8 that opens and closes the communication hole 5b.

リング12は、シリンダ6の外周に隙間をおいて配置されており、同時にボディ3のつば底部3cの開口側の面(つば上面部3d)上に配置され、リング12の外周側は円筒つば部3bの内周側に配置される。   The ring 12 is disposed on the outer periphery of the cylinder 6 with a gap, and at the same time, is disposed on the opening side surface (the collar upper surface portion 3d) of the collar bottom portion 3c of the body 3, and the outer periphery side of the ring 12 is a cylindrical collar portion. Arranged on the inner peripheral side of 3b.

次に、各部の隙間の関係について説明する。
リング12の内周とシリンダ6の外周との間に隙間を設ける構成とするのがよい。これにより、かしめ固定の際の、シリンダ6の変形が抑止される。
Next, the relationship between the gaps of each part will be described.
It is preferable that a gap be provided between the inner periphery of the ring 12 and the outer periphery of the cylinder 6. Thereby, deformation of the cylinder 6 at the time of caulking is suppressed.

リング12の外周と円筒つば部3bの内周側とは当接した構成としてよい。この場合、後述のかしめ固定の際に、円筒つば部3bがリングに保持されるため、円筒つば部が内側に変形する量が少ないため、後述のかしめ肉20cを少なくでき、かしめに必要な荷重を低減できる。かしめに必要な荷重を低減できれば、後述のポンチの硬度を下げるか、またはポンチ自体の変形量を減らせるため、コスト低減を図れる。また、リングの軸ずれを防ぐことができるため、かしめの際の荷重を均一化することができる。   The outer periphery of the ring 12 and the inner peripheral side of the cylindrical collar portion 3b may be in contact with each other. In this case, since the cylindrical collar portion 3b is held by the ring at the time of caulking, which will be described later, the amount of deformation of the cylindrical collar portion is small, so that the caulking meat 20c described later can be reduced, and the load necessary for caulking Can be reduced. If the load necessary for caulking can be reduced, the hardness of the punch described later can be reduced, or the deformation amount of the punch itself can be reduced, so that the cost can be reduced. Moreover, since the axial displacement of the ring can be prevented, the load during caulking can be made uniform.

一方、リング12の外周と円筒つば部3bの内周側に隙間を設けた構成としてもよい(図2参照)。この場合は、リングを挿入する際の組み付け性が向上する。しかし、リングに軸ずれが起きてもシリンダとの隙間を確保するために、リング12の外周と円筒つば部3bの内周側の隙間は、リング12の内周とシリンダ6の外周に設ける隙間よりも小さく設定するとよい。   On the other hand, it is good also as a structure which provided the clearance gap between the outer periphery of the ring 12, and the inner peripheral side of the cylindrical collar part 3b (refer FIG. 2). In this case, the assembling property when inserting the ring is improved. However, in order to ensure a clearance with the cylinder even if the ring is misaligned, the clearance between the outer periphery of the ring 12 and the inner periphery of the cylindrical collar 3b is a clearance provided between the inner periphery of the ring 12 and the outer periphery of the cylinder 6. It is better to set smaller than this.

弁取付孔20の段部側面20aの内周と円筒つば部3bの外周部との間に、隙間を設ける構成とすれば、圧入を必要とせずに組み付けることができるため、組み付け性が向上する。   If the gap is provided between the inner periphery of the stepped portion side surface 20a of the valve mounting hole 20 and the outer periphery of the cylindrical collar portion 3b, it can be assembled without the need for press-fitting, so that the assembling property is improved. .

次に、各部の材料について説明する。
ハウジング1の材料は、シリンダ6、リング12、ボディ3よりも剛性の低い材料で構成されるとよい。例えば、ハウジング1はアルミニウム、シリンダ6、リング12およびボディ3はステンレス鋼等で構成される。また、ボディ3、シート部材5は、比較的加工が容易な薄板のプレス加工品等で構成することができるので、コスト低減が可能である。
Next, the material of each part will be described.
The material of the housing 1 is preferably composed of a material having rigidity lower than that of the cylinder 6, the ring 12, and the body 3. For example, the housing 1 is made of aluminum, the cylinder 6, the ring 12, and the body 3 are made of stainless steel or the like. Further, since the body 3 and the sheet member 5 can be formed of a thin plate processed product that is relatively easy to process, the cost can be reduced.

次に、組み立て手順を説明する。
まず、ボディ3にシート部材5を圧入し、内部に弁体8と一体となったプランジャ7、ばね13を挿入した上で、ボディ3とシリンダ6を、シリンダ6と固定コア18を、それぞれ溶接固定する。次に、ボディ3のつば部3aを、ハウジングに設けた弁取付孔20の段部の底面20bに配置する。
Next, the assembly procedure will be described.
First, the seat member 5 is press-fitted into the body 3, the plunger 7 and the spring 13 integrated with the valve body 8 are inserted therein, and then the body 3 and the cylinder 6 are welded to the cylinder 6 and the fixed core 18, respectively. Fix it. Next, the collar portion 3a of the body 3 is disposed on the bottom surface 20b of the step portion of the valve mounting hole 20 provided in the housing.

次の工程である、ボディ3のハウジング1へのかしめ固定について、図2から図4を用いて説明する。   Next, caulking and fixing of the body 3 to the housing 1 will be described with reference to FIGS.

まず、ボディ3のつば上面部3dにリング12を配置する。そして、図2および図3において、ポンチ30を上方から下方に移動することでハウジング1の上端部を押し込み、ハウジング1の上端部を塑性変形させることで、リング12、円筒つば部3bの上面および側面が、変形したハウジングの一部(かしめ肉20c)により接触して押圧される(図4参照)。   First, the ring 12 is disposed on the collar upper surface portion 3d of the body 3. 2 and 3, the upper end of the housing 1 is pushed by moving the punch 30 downward from above, and the upper end of the housing 1 is plastically deformed, so that the upper surface of the ring 12, the cylindrical collar 3b and The side surface is pressed in contact with a part of the deformed housing (caulking meat 20c) (see FIG. 4).

ポンチ30を上方に戻すと、かしめ肉20cは、塑性変形により元には戻らず、リング12と円筒つば部3bを押圧した状態を維持して固定される。この際、段部側面20aの内周と円筒つば部3bの外周との間、リング12の外周と円筒つば部3bの内周との間に隙間があっても、かしめ肉20cの押圧により隙間はなくなり、リング12の外周と円筒つば部3bの内周、円筒つば部3bの外周と段部側面20aの内周は、それぞれ接触した状態となる。このように、かしめ固定により接触した状態となるため、各隙間の大きさに高い精度は必要なく、リングやボディを高精度に加工する必要がなくなり、コストを低減することができる。   When the punch 30 is returned upward, the caulking meat 20c does not return to its original state due to plastic deformation, and is fixed with the ring 12 and the cylindrical collar portion 3b being pressed. At this time, even if there is a gap between the inner circumference of the step side surface 20a and the outer circumference of the cylindrical collar 3b, and between the outer circumference of the ring 12 and the inner circumference of the cylindrical collar 3b, the gap is caused by pressing of the caulking meat 20c. The outer periphery of the ring 12 and the inner periphery of the cylindrical collar 3b, the outer periphery of the cylindrical collar 3b, and the inner periphery of the stepped side surface 20a are in contact with each other. Thus, since the contact is achieved by caulking, high accuracy is not required for the size of each gap, and it is not necessary to process the ring and body with high accuracy, thereby reducing the cost.

また、円筒つば部3bは、リング12と接触した後は、剛性の高いリング12により、それ以上倒れることがなくなる。これにより、ボディ3の内径側への変形が抑えられ、精度を必要とするシート部材5の変形を抑えることができる。また、シリンダ6の外周とリング12の内周との間にも隙間を設けているため、シリンダ6の変形も抑えることができる。   Further, after the cylindrical collar portion 3b comes into contact with the ring 12, the cylindrical collar portion 3b will not fall any further due to the highly rigid ring 12. Thereby, deformation of the body 3 toward the inner diameter side can be suppressed, and deformation of the sheet member 5 requiring accuracy can be suppressed. In addition, since a gap is provided between the outer periphery of the cylinder 6 and the inner periphery of the ring 12, deformation of the cylinder 6 can be suppressed.

このとき、ポンチ30に掛ける荷重は、かしめ肉20cと、円筒つば部3bの先端部の上面もしくは側面等の少なくとも一部が、全周上で当接しかつ当接した部分では加圧に耐えられる残留接触力を保持できる程度とする。これにより、当接部に作動油の外部への漏れを防ぐシール部を構成することができる。また、かしめ肉がリング12上に加圧に耐えられる力で残留接触力が発生するようにすることで、加圧時にリング12のハウジングへの固定を維持することができる。また、全周にわたり接するようにすることで、シール性を向上することができる。   At this time, the load applied to the punch 30 is such that the caulking meat 20c and at least a part of the top surface or the side surface of the tip end portion of the cylindrical collar portion 3b are in contact with each other on the entire circumference and can withstand pressurization. The residual contact force should be maintained. Thereby, the seal part which prevents the hydraulic fluid from leaking to the outside can be configured in the contact part. In addition, since the residual contact force is generated on the ring 12 so that the caulking meat can withstand the pressurization, the ring 12 can be fixed to the housing during the pressurization. Moreover, the sealing performance can be improved by making contact over the entire circumference.

このとき、上述のように円筒つば部3bの上面もしくは側面等の少なくとも一部とかしめ肉20cとの間にシール部が形成されればよく、円筒つば部3bの付け根部の外周側と段部側面20aの内周面との間に隙間ができるようにしてもよい。これによりかしめ荷重を小さくすることができる。   At this time, as described above, it is only necessary to form a seal portion between at least a part of the upper surface or the side surface of the cylindrical collar portion 3b and the caulking meat 20c, and the outer peripheral side and the stepped portion of the base portion of the cylindrical collar portion 3b. A gap may be formed between the inner surface of the side surface 20a. As a result, the caulking load can be reduced.

次に、このバルブの動作について説明する。
この電磁弁100は、例えばブレーキ制御装置に使用されるバルブの一つとして用いられ、ホイルシリンダとリザーバとの間に配置され、開弁することによってホイルシリンダの作動油をリザーバ側に戻すことで、ホイルシリンダの圧力を下げることに用いられる。すなわち、ハウジング1の第1流通路15はホイルシリンダ側に、第2流通路16はリザーバ側に接続されており、コイルへの励磁がないときは両通路が連通していないが、コイルへの励磁で開弁すると、この両流通路が連通される構成である。このとき、第1流通路側が高圧となるため、確実なシールによって作動油が外部に漏れることがないようにする必要がある。
Next, the operation of this valve will be described.
This solenoid valve 100 is used as one of valves used in, for example, a brake control device, and is disposed between a wheel cylinder and a reservoir. By opening the valve, hydraulic oil of the wheel cylinder is returned to the reservoir side. Used to lower the pressure of the wheel cylinder. That is, the first flow passage 15 of the housing 1 is connected to the wheel cylinder side, and the second flow passage 16 is connected to the reservoir side. When there is no excitation to the coil, the two passages do not communicate with each other. When the valve is opened by excitation, the two flow passages communicate with each other. At this time, since the first flow passage side becomes a high pressure, it is necessary to prevent the hydraulic oil from leaking to the outside by a reliable seal.

高圧内部と外部との接続点である、シリンダ6内面と固定コア18との間は、溶接により固定することでシール性を確保する。また、ボディ3のつば部3aとハウジング1の間は、円筒つば部3bと段部側面20aとの間で十分な接触力で当接しており、シール性が確保される。また、リング12と円筒つば部3bの上面側にもかしめ肉20cが乗っていることから、加圧したときに受ける下方向からの力に対しても固定されて耐圧性が確保される。   The seal between the inner surface of the cylinder 6 and the fixed core 18, which is the connection point between the high pressure inside and the outside, is secured by welding. Further, the collar portion 3a of the body 3 and the housing 1 are in contact with each other with a sufficient contact force between the cylindrical collar portion 3b and the stepped portion side surface 20a, and a sealing property is ensured. Further, since the caulking meat 20c is on the upper surface side of the ring 12 and the cylindrical collar portion 3b, the caulking meat 20c is fixed against the downward force received when the pressure is applied, and the pressure resistance is ensured.

なお、ここではホイルシリンダとリザーバとの間に配置した電磁弁の例を示したが、マスターシリンダとポンプとの間に配置した電磁弁として使用してもよい。この場合は第1流通路15がマスターシリンダ側、第2流通路16がポンプ側に繋がれる。また、制御用ブレーキに限らず、励磁があるときに開弁するタイプのバルブに使用することも可能である。   Although an example of the electromagnetic valve disposed between the wheel cylinder and the reservoir is shown here, the electromagnetic valve may be used as an electromagnetic valve disposed between the master cylinder and the pump. In this case, the first flow passage 15 is connected to the master cylinder side, and the second flow passage 16 is connected to the pump side. Further, the present invention is not limited to the brake for control, and can be used for a valve that opens when excitation occurs.

以上から、本発明の電磁弁では、ボディ3のハウジング1への固定が、一回のかしめ工程により十分なシール性と耐圧性を確保することができる。また、隙間があっても、かしめの際の押圧により、隙間を埋めることができることから高精度の加工が必要なく、低コスト化を図れる。また、リング12により、ボディ3の内側への変形を抑え、シート部材5の精度が必要なシート面5aの変形が抑えられることから、制御性を損なうことがない。   From the above, in the electromagnetic valve of the present invention, the body 3 can be fixed to the housing 1 with sufficient sealing performance and pressure resistance by a single caulking process. Further, even if there is a gap, the gap can be filled by pressing during caulking, so that high-precision processing is not required, and cost reduction can be achieved. Further, since the ring 12 prevents the deformation of the body 3 inward and the deformation of the seat surface 5a that requires the accuracy of the seat member 5, the controllability is not impaired.

[実施例2]
図5、図6は、本発明の実施例2の電磁弁を示す。図5に示すように、リング12をつば上面部3dに設置したときに、円筒つば部3bの開放側先端面が、リング12の外周の開放側上端面よりも、弁取付孔20の開放側に位置するようにする。その他の構成、組み立て方法および動作は、実施例1の場合と同じである。
[Example 2]
5 and 6 show a solenoid valve according to Embodiment 2 of the present invention. As shown in FIG. 5, when the ring 12 is installed on the collar upper surface portion 3d, the open end surface of the cylindrical collar portion 3b is more open than the upper end surface of the outer periphery of the ring 12 on the open side of the valve mounting hole 20. To be located. Other configurations, assembly methods, and operations are the same as those in the first embodiment.

これにより、かしめの際に、円筒つば部3bをリング12側に倒すモーメントが発生しやすくなり、かしめ固定の結果は、図6に示すように、円筒つば部3bの先端部がリングの外周面よりも内部側に位置することとなる。この場合、小さいかしめ荷重により円筒つば部3bとハウジング1の固定をすることができる。また同じ荷重であれば、よりシール性、耐圧性を高めることができるため、低コスト化および信頼性向上が可能である。   As a result, a moment that tilts the cylindrical collar 3b toward the ring 12 is likely to occur during caulking, and the result of caulking is that the end of the cylindrical collar 3b is positioned on the outer peripheral surface of the ring as shown in FIG. It will be located on the inner side. In this case, the cylindrical collar 3b and the housing 1 can be fixed by a small caulking load. Further, if the load is the same, the sealing performance and pressure resistance can be further improved, so that the cost can be reduced and the reliability can be improved.

1 ハウジング、3 ボディ、5 シート部材、6 シリンダ、7 プランジャ、8 弁体、
10 コイル、11 ヨーク、12 リング、13 ばね、15 第1流通路、16 第2流通路、20 弁取付孔、100 電磁弁
1 Housing, 3 Body, 5 Seat member, 6 Cylinder, 7 Plunger, 8 Valve body,
10 Coil, 11 Yoke, 12 Ring, 13 Spring, 15 1st flow passage, 16 2nd flow passage, 20 Valve mounting hole, 100 Solenoid valve

Claims (17)

流路と前記流路に連通する弁取付孔が形成されたハウジングと、
前記弁取付孔内に設けられた筒状部材と、
前記筒状部材の外周に配置されたコイルと、
前記筒状部材の一端側に設けられて前記コイルに通電されたときに吸引力を発生するコアと、
前記コアによって発生した吸引力により前記筒状部材の軸方向に沿って移動する弁体と、
前記筒状部材の他端側を受けて前記弁取付孔内に配置されると共に前記弁取付孔の開口側の先端に円筒つば部を備えたボディと、
前記ボディの内周側に配置されて前記弁体の移動による接離で開閉する流路が形成されたシート部材と、
前記円筒つば部の円筒部分の内周面に面して配置されるリングと、を備えて、
前記ハウジングの少なくとも一部がかしめ変形されて前記円筒つば部の円筒部分を縮径させてシール部を構成し、前記弁取付孔内からの作動油の漏れを抑制することを特徴とする電磁弁。
A housing in which a flow path and a valve mounting hole communicating with the flow path are formed;
A cylindrical member provided in the valve mounting hole;
A coil disposed on the outer periphery of the tubular member;
A core that is provided on one end of the cylindrical member and generates a suction force when the coil is energized;
A valve body that moves along the axial direction of the tubular member by the suction force generated by the core;
A body that receives the other end side of the cylindrical member and is disposed in the valve mounting hole and has a cylindrical collar at the opening end of the valve mounting hole;
A seat member formed on the inner peripheral side of the body and formed with a flow path that opens and closes by contact and separation by movement of the valve body;
A ring arranged facing the inner peripheral surface of the cylindrical portion of the cylindrical collar portion,
A solenoid valve characterized in that at least a part of the housing is caulked and deformed to reduce the diameter of the cylindrical portion of the cylindrical collar portion to constitute a seal portion, thereby suppressing leakage of hydraulic oil from the valve mounting hole. .
請求項1に記載の電磁弁であって、前記円筒つば部の前記円筒部分の内周面は、前記リングと当接していることを特徴とする電磁弁。   2. The electromagnetic valve according to claim 1, wherein an inner circumferential surface of the cylindrical portion of the cylindrical collar portion is in contact with the ring. 請求項1に記載の電磁弁であって、前記円筒つば部の前記円筒部分の先端は、前記リングの当接面となる上面よりも前記弁取付孔の開口側に位置することを特徴とする電磁弁。   2. The electromagnetic valve according to claim 1, wherein a tip end of the cylindrical portion of the cylindrical collar portion is located closer to an opening side of the valve mounting hole than an upper surface serving as a contact surface of the ring. solenoid valve. 請求項1に記載の電磁弁であって、前記円筒つば部の前記円筒部分の先端は、前記リングの当接面となる上面よりも前記弁取付孔の底部側に位置することを特徴とする電磁弁。   2. The electromagnetic valve according to claim 1, wherein a tip end of the cylindrical portion of the cylindrical collar portion is located on a bottom side of the valve mounting hole with respect to an upper surface serving as a contact surface of the ring. solenoid valve. 請求項1に記載の電磁弁であって、前記円筒つば部の前記円筒部分の内周面と前記リングの外周面との間に隙間が設けられていることを特徴とする電磁弁。   2. The electromagnetic valve according to claim 1, wherein a gap is provided between an inner peripheral surface of the cylindrical portion of the cylindrical collar portion and an outer peripheral surface of the ring. 請求項1に記載の電磁弁であって、前記筒状部材の外周面と前記リングの内周面との間に隙間が設けられていることを特徴とする電磁弁。   2. The electromagnetic valve according to claim 1, wherein a gap is provided between an outer peripheral surface of the cylindrical member and an inner peripheral surface of the ring. 請求項6に記載の電磁弁であって、前記円筒つば部の前記円筒部分の内周面と前記リングの外周面との間の隙間は、前記前記リングの内周面と前記筒状部材の外周面との間の隙間よりも小さいことを特徴とする電磁弁。   The electromagnetic valve according to claim 6, wherein a gap between an inner peripheral surface of the cylindrical portion of the cylindrical collar portion and an outer peripheral surface of the ring is formed between the inner peripheral surface of the ring and the cylindrical member. An electromagnetic valve characterized by being smaller than a gap between the outer peripheral surface. 請求項1に記載の電磁弁であって、前記円筒つば部の前記円筒部分の外周と前記弁取付孔の内周との間に隙間が設けられていることを特徴とする電磁弁。   2. The electromagnetic valve according to claim 1, wherein a gap is provided between an outer periphery of the cylindrical portion of the cylindrical collar portion and an inner periphery of the valve mounting hole. 請求項8に記載の電磁弁であって、前記円筒つば部の前記円筒部分の先端と前記弁取付孔の内周が当接していることを特徴とする電磁弁。   9. The electromagnetic valve according to claim 8, wherein a tip of the cylindrical portion of the cylindrical collar portion is in contact with an inner periphery of the valve mounting hole. 請求項1に記載の電磁弁であって、前記リングの外周面と前記円筒つば部の前記円筒部分の付け根部の内周との間に隙間が設けられていると共に、前記円筒部分の先端は前記外周面に当接していることを特徴とする電磁弁。   The electromagnetic valve according to claim 1, wherein a gap is provided between an outer peripheral surface of the ring and an inner periphery of a base portion of the cylindrical portion of the cylindrical collar portion, and a tip of the cylindrical portion is A solenoid valve, which is in contact with the outer peripheral surface. 請求項1に記載の電磁弁であって、前記ハウジングのかしめられた肉は、前記リングおよび前記円筒つば部の前記円筒部分の両方に当接していることを特徴とする電磁弁。   2. The electromagnetic valve according to claim 1, wherein the caulked meat of the housing is in contact with both the ring and the cylindrical portion of the cylindrical collar portion. 請求項11に記載の電磁弁であって、前記ハウジングのかしめられた肉は、前記リングおよび前記円筒つば部の前記円筒部分の両方に、全周にわたって当接していることを特徴とする電磁弁。   12. The electromagnetic valve according to claim 11, wherein the caulked meat of the housing is in contact with both the ring and the cylindrical portion of the cylindrical collar over the entire circumference. . 請求項11に記載の電磁弁であって、前記円筒つば部の前記円筒部分の先端は、前記リングに対して、全周にわたって当接していることを特徴とする電磁弁。   12. The electromagnetic valve according to claim 11, wherein a tip of the cylindrical portion of the cylindrical collar is in contact with the ring over the entire circumference. 流路と前記流路に連通する弁取付孔が形成されたハウジングと、
前記弁取付孔内に設けられた筒状部材と、
前記筒状部材の外周に配置されたコイルと、
前記筒状部材の一端側に設けられて前記コイルに通電されたときに吸引力を発生するコアと、
前記コアによって発生した吸引力により前記筒状部材の軸方向に沿って移動する弁体と、
前記筒状部材の他端側を受けて前記弁取付孔内に配置されると共に前記弁取付孔の開口側の先端に円筒つば部を備えたボディと、
前記ボディの内周側に配置されて前記弁体の移動による接離で開閉する流路が形成されたシート部材と、
前記円筒つば部の円筒部分の内周面に面して配置されるリングと、を備えて、
前記ハウジングの少なくとも一部がかしめ変形されてかしめ変形部が形成され、少なくとも前記円筒つば部の前記円筒部分と前記ハウジングが接した状態で前記円筒部分を前記リングと前記ハウジングのかしめ変形部とによって囲うように固定することを特徴とする電磁弁。
A housing in which a flow path and a valve mounting hole communicating with the flow path are formed;
A cylindrical member provided in the valve mounting hole;
A coil disposed on the outer periphery of the tubular member;
A core that is provided on one end of the cylindrical member and generates a suction force when the coil is energized;
A valve body that moves along the axial direction of the tubular member by the suction force generated by the core;
A body that receives the other end side of the cylindrical member and is disposed in the valve mounting hole and has a cylindrical collar at the opening end of the valve mounting hole;
A seat member formed on the inner peripheral side of the body and formed with a flow path that opens and closes by contact and separation by movement of the valve body;
A ring arranged facing the inner peripheral surface of the cylindrical portion of the cylindrical collar portion,
At least a part of the housing is caulked and deformed to form a caulking deformed portion, and at least the cylindrical portion of the cylindrical collar and the housing are in contact with the cylindrical portion by the ring and the caulking deformed portion of the housing. A solenoid valve characterized by being fixed so as to be enclosed.
流路と前記流路に連通する弁取付孔が形成されたハウジングと、前記弁取付孔内に設けられる筒状部材と、前記筒状部材の外周に配置されるコイルと、前記筒状部材の一端側に設けられて前記コイルに通電されると吸引力を発生するコアと、前記コアによって発生する吸引力により前記筒状部材の軸方向に沿って移動する弁体と、前記筒状部材の他端側を受けて前記弁取付孔内に配置されると共に前記弁取付孔の開口側の先端に円筒つば部を備えるボディと、前記ボディの内周に配置されて前記弁体の移動による接離で開閉する流路が形成されるシート部材と、前記円筒つば部の円筒部の内周面に面して配置されるリングと、を備える電磁弁の製造方法であって、
前記ボディに前記シート部材を圧入し、前記ボディを前記筒状部材に溶接するステップと、
前記ボディの前記円筒つば部を、前記ハウジングに設けた前記弁取付孔の段部の底面に配置するステップと、
前記ボディの前記円筒つば部の上面に前記リングを配置するステップと、
ポンチにより、前記ハウジングの上端部を押し込み、前記上端部を塑性変形させることで、前記リング、前記円筒つば部の上面および側面を、変形した前記ハウジングの一部により接触して押圧するステップと、を含むことを特徴とする電磁弁の製造方法。
A housing in which a valve mounting hole communicating with the flow path and the flow path is formed; a cylindrical member provided in the valve mounting hole; a coil disposed on an outer periphery of the cylindrical member; A core that is provided on one end side and generates a suction force when energized to the coil; a valve body that moves along the axial direction of the cylindrical member by the suction force generated by the core; and A body having a cylindrical collar at the distal end on the opening side of the valve mounting hole and receiving the other end is disposed in the valve mounting hole, and a body disposed on the inner periphery of the body by contact of the valve body. A manufacturing method of an electromagnetic valve comprising: a sheet member in which a flow path that opens and closes by separation is formed; and a ring that is disposed facing an inner peripheral surface of the cylindrical portion of the cylindrical collar portion,
Press-fitting the sheet member into the body, and welding the body to the tubular member;
Disposing the cylindrical collar portion of the body on a bottom surface of a step portion of the valve mounting hole provided in the housing;
Placing the ring on the top surface of the cylindrical collar of the body;
Pressing the upper end of the housing with a punch and plastically deforming the upper end, thereby pressing the ring, the upper surface and the side surface of the cylindrical collar part in contact with a part of the deformed housing; and The manufacturing method of the solenoid valve characterized by including.
請求項15に記載された電磁弁の製造方法において、
前記リングを配置するステップにおいて、前記リングを配置した時、前記円筒つば部の前記円筒部分の外周面と前記弁取付孔の周側面の間に隙間があり、かつ、前記円筒つば部の前記円筒部分の内周面と前記リングの外周面との間に隙間があることを特徴とする電磁弁の製造方法。
In the manufacturing method of the solenoid valve according to claim 15,
In the step of arranging the ring, when the ring is arranged, there is a gap between the outer peripheral surface of the cylindrical portion of the cylindrical collar portion and the peripheral side surface of the valve mounting hole, and the cylinder of the cylindrical collar portion. A method for manufacturing an electromagnetic valve, wherein a gap is provided between an inner peripheral surface of the portion and an outer peripheral surface of the ring.
請求項15に記載された電磁弁の製造方法において、
前記リングを配置するステップにおいて、前記リングを配置した時、前記筒状部材の外周面と前記リングの内周面との間に隙間があることを特徴とする電磁弁の製造方法。
In the manufacturing method of the solenoid valve according to claim 15,
In the step of arranging the ring, when the ring is arranged, there is a gap between the outer peripheral surface of the cylindrical member and the inner peripheral surface of the ring.
JP2012191988A 2012-08-31 2012-08-31 Electromagnetic valve Pending JP2014047862A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018523078A (en) * 2015-08-10 2018-08-16 浙江三花智能控制股▲ふん▼有限公司Zhejiang Sanhua Intelligent Controls CO.,Ltd Valve housing assembly & valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018523078A (en) * 2015-08-10 2018-08-16 浙江三花智能控制股▲ふん▼有限公司Zhejiang Sanhua Intelligent Controls CO.,Ltd Valve housing assembly & valve

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