CN204784966U - Electromagnetic valve device - Google Patents

Abstract

The utility model provides an electromagnetic valve device, it can be maintain encapsulated situation reliably and not rely on the equipment precision. Plunger (53), first valve part (251) comprise the components of a whole that can function independently part with second valve part (252). Be when closing the valve state at valve structure (221), press second valve part (252) and open the action through making plunger (53) carry out inception removal downwards to can form first flow path (501) between first valve port (201) and second valve port (231). Through the further removal of plunger (53), second valve part (252) makes first valve part (251) thereby removes downwards and open the action with position constraint portion (282) butt. From this, can add to formation second flow path (511) between first valve port (201) and second valve port (231).

Description

Electromagnetic valve device

Technical field

The utility model relates to a kind of electromagnetic valve device such as controlling oil pressure.

Background technique

In recent years, be known to a kind of technology (such as, with reference to Japanese Kokai 2006-258279 publication): make in the vehicle of so-called idling flameout function of engine stop when having vehicle parking, as shown in Figure 8, the boosting utilizing electric oil pump 701 to carry out at vehicle launch time insufficient starting stage, by the pressure accumulation when vehicle travels is supplied to oil clutch 703 to improve starting-up response in the oil pressure of accumulator 702.

That is, when importing the oil pressure from described electric oil pump 701 to described accumulator 702, open the one-way valve 711 of described accumulator 702 upstream side, and close the clutch control valve 712 for solenoid valve in downstream, thus import oil pressure to described accumulator 702.

Further, at maintenance pressure accumulation when the oil pressure of described accumulator 702, close the described one-way valve 711 of described accumulator 702 upstream side, and close the described clutch control valve 712 for solenoid valve in downstream, thus maintain higher oil pressure in described accumulator 702.

And, form as follows: when vehicle starts from idling flameout state, during before become fully to the pressurization of described electric oil pump 701, by carrying out excitation and valve opening to the described clutch control valve 712 for solenoid valve in described accumulator 702 downstream, described oil clutch 703 side to speed changer discharges the oil pressure of described accumulator 702, described oil clutch 703 side to speed changer imports the oil pressure from described accumulator 702, thus clutch responsiveness when improving vehicle launch.

When using solenoid valve to implement above-mentioned action, need to overcome higher pressure and excitation is carried out to o, plunger is moved, pressing is in the valve member of valve closing state, but in common solenoid valve, be difficult to actuating valve parts, need the o preparing strong attraction force, thus not only make larger-scale unit, also make starting electric power increase, cause running in the opposite direction with the theory of recent miniaturization, energy-saving.Therefore, the applicant has discussed the unconventional solenoid valve 801 (for example, referring to Japanese Unexamined Patent Publication 8-021554 publication) effectively utilized shown in Fig. 9.

That is, this electromagnetic valve device 801 shown in Japanese Unexamined Patent Publication 8-021554 publication is formed as follows: have: the first spool 803, and it is integrally formed with the plunger 802 of the action by the excitation of coil; And second spool 804, it is exerted a force to valve closing side by spring force, disperses to put on the pressure of described plunger 802, thus can tackle high voltage control by opening the first spool 803 and the second spool 804 when coil magnetization successively.

The applicant discusses the electromagnetic valve device 801 shown in above-mentioned Japanese Unexamined Patent Publication 8-021554 publication is applied to the device shown in Japanese Kokai 2006-258279 publication, result is: accumulator is connected to the first valve port 811 by the applicant's imagination, and electric oil pump and oil clutch are connected to the second valve port 812.

Thus, form as follows: by when valve opening by the former pressure pressure accumulation from described electric oil pump in described accumulator, and carry out valve closing action when stopping the former pressure of supply, oil pressure can be held in described accumulator, and form as follows: by carrying out valve opening action when starting described oil clutch, the oil pressure of described accumulator can be supplied to described oil clutch.

But, based in the electromagnetic valve device 801 of this imagination, because the first spool 803 is integrally formed with plunger 802, therefore in order to reliably maintain the valve closing state of being carried out valve closing by described first spool 803, require that spool 803 and spool 804 have very high coaxality, and Element Design, processing and assembling all require highi degree of accuracy.

Model utility content

The utility model in view of this existing problem aims to provide a kind of reliably can maintain valve sealing state and depend on the electromagnetic valve device of part, processing and assembly precision with exceeding.

In the mode of execution illustrated in the application, electromagnetic valve device has: valve arrangement body, and it is configured at the liquid flow path between the first valve port and the second valve port, carries out the valve opening between the first valve port and the second valve port and valve closing, valve arrangement body accommodating part, it holds valve arrangement body, and plunger, it is driven by the below to axis by the excitation of o, the upside of the axis of valve arrangement body accommodating part is provided with the first sealed department, first sealed department has the first opening be communicated with the first valve port, and, valve arrangement body is formed by the first valve member and the second valve member, first valve member is hollow shape, and be retained as and can move vertically in valve arrangement body accommodating part, second valve member is retained as and can moves vertically in described first valve member, be provided with sealing in the upside of the axis of the first valve member and be close to portion and the second sealed department, sealing is close to portion and can be close to the complete cycle of the first sealed department, second sealed department has the opening with the regulation of the first open communication, second valve member be configured to be formed be close to the complete cycle of the second sealed department be close to state and contactless state discontiguous with the complete cycle of the second sealed department, and the downside of the axis of the first valve member is provided with the second opening and position restraining portions, second opening is via the opening specified and the first open communication, the second valve member that position restraining portions can move with the below to axis abuts, by plunger along with the excitation of o the initial movable to the below of axis, plunger presses the second valve member, to move to the below of axis by making the second valve member remove that the second valve member and the second sealed department formed be close to state, thus first flow path is formed between the first valve port and the second valve port, by plunger further movement to the below of axis along with the excitation of o, second valve member abuts with position restraining portions, and the first valve member is moved to the below of axis, what portion and the first sealed department were close in the sealing removing the first valve member is close to state, thus except first flow path, formation second stream is added between the first valve port and the second valve port.

A mode of execution according to the application, under valve closing state, carry out initial movable by plunger to the below of axis, this plunger presses the second valve member and carries out opening action, can form first flow path thus between the first valve port and the second valve port.

Further, by the further movement of described plunger, described second valve member abuts with the position restraining portions of the first valve member.Like this, carry out opening action because this first valve member moves, therefore, it is possible to add formation second stream between described first valve port and described second valve port.

Like this, can either suppress to make described second valve member carry out the steering force of the starting stage of opening action, again can by forming described first flow path and described second stream guarantees desired through-current capacity.

And described first valve member formed due to described plunger pressing split and described second valve member carry out open and close valve, therefore, it is possible to reliably form sealing state by each valve member and do not rely on part, processing and assembly precision.

As mentioned above, the mode of execution according to the application, can either suppress the steering force making the second valve member carry out the starting stage of opening action, can guarantee desired through-current capacity again by formation first flow path and described second stream.

Therefore, it is possible to guarantee desired flow and do not make o maximize.

Further, because plunger and the first valve member and the second valve member are splits each other, therefore, it is possible to reliably guarantee the valve closing state of each valve member and Element Design, processing and assembly precision need not be required.

Reliably can guarantee sealing state therefore, it is possible to provide a kind of and not rely on the electromagnetic valve device of part, processing and assembly precision.

And, joint is configured with at the peripheral part of the second valve member, joint connects sealing and is close to portion and position restraining portions, and when than joint region in the inner part with than described joint region in the outer part in be provided with the throughput that fluid can circulate, due to can using in valve arrangement body as stream, therefore, it is possible to successfully carry out pressure accumulation and pressure accumulation release.

And, spaced apart when being provided with multiple joint in the circumference of the second valve member, due to can using between the circumference of multiple joint as throughput, therefore, it is possible to realize the increase of flow.

In addition, when the outer side surface of joint is positioned at the position of outer rim by radial outside being close to the outer rim in portion and position restraining portions than sealing, flow during unlimited first sealed department can be made to increase.

Further, be close in sealing the parts be connected as a single entity that portion and joint are homogenous materials, when being mechanically fastened between joint and position restraining portions, the simplification of assembling procedure can be realized.

And the valve arrangement body accommodating part holding valve arrangement body has the inner circumferential barrel surface extended vertically, and the envelope surface be made up of the outer side surface of joint is the periphery barrel surface extended spaced a slight clearance with described inner circumferential barrel surface.

In addition, when the second sealed department contacted with the second valve member is positioned at than the position of the position contacted with the first sealed department sealing portion of being close to by radially inner side, the first sealed department and the second sealed department can separately be formed.Therefore, it is possible to improve the tightness of each sealed department.

And, the position that position restraining portions is overlapping with the second valve member when observing vertically has through hole or recess, by arranging through hole etc. in position restraining portions, oil pushes away the second valve member upward from below by described through hole etc. under the state of pressure accumulation.Therefore, it is possible to form the valve without the need to keeping pressure accumulation state from the auxiliary of outside.

And, at the second valve member, there is rake, under the state that the second valve member contacts with position restraining portions, when observing from the below of axis, rake along with towards radial outside to the inclined upward of axis from the contacting part of the second valve member and position restraining portions, easily applies oil pressure to rake and pushes away the second valve member upward from below under the state of pressure accumulation.Thereby, it is possible to form the valve without the need to keeping pressure accumulation state from the auxiliary of outside.

In addition, seal the portion of being close to be formed as along with the umbrella outstanding upward towards radial center.

Further, the second valve member is axial top is spherical or cone shape bullet shape.

And the second valve member is spherical.

In addition, when the pressure of pressure ratio second valve port of the first valve port is low and o is non-excited state, by means of the difference of pressure, the first valve member and the first sealed department are close to, and the second valve member and the second sealed department are close to, thus form valve closing state.

Further, keep the pressure accumulation mechanism of oil pressure to be connected with the second valve port, the oil pressure generation mechanism producing oil pressure and the device being supplied to oil pressure are connected with the first valve port.

In addition, be configured in the size in direction orthogonal to the axial direction: larger than the outside dimension of the first valve member at the internal diameter size of valve arrangement body accommodating part, and the internal diameter size of the first valve member is larger than the outside dimension of the second valve member, in this case, form first flow path and the second stream when valve opening, thus make flow divide two phase change.

In addition, electromagnetic valve device has the second valve jack-up space, when the second valve member is valve opening state, second valve jack-up is communicated with the second valve port in the downside of axis with space, in this case, to the pressure bearing space of valve closing direction jack-up second valve member when to can be formed in the second valve port side be high pressure.

Further, the second valve jack-up with space by making the downside of the second valve member along with downward and substantially horizontal sectional area diminishes and formed.

By referring to the detailed description of accompanying drawing to preferred implementation, above-mentioned and other key element of the present utility model, feature, step, feature and advantage more clearly can be understood.

Accompanying drawing explanation

Fig. 1 is the sectional view that the first mode of execution of the present utility model is shown.

Fig. 2 is the enlarged view of the major component that the first mode of execution is shown.

Fig. 3 is the explanatory drawing of the action that the first mode of execution is shown.

Fig. 4 is the explanatory drawing of the action illustrated after Fig. 3.

Fig. 5 illustrates in the horizontal direction by the schematic sectional view of the state that after the valve arrangement body of present embodiment and the accommodating part cutting of valve arrangement body is.

Fig. 6 is the sectional view of the major component that the second mode of execution of the present utility model is shown.

Fig. 7 is the sectional view of the major component that the 3rd mode of execution of the present utility model is shown.

Fig. 8 is the explanatory drawing that existing system is shown.

Fig. 9 is the explanatory drawing that existing electromagnetic valve device is shown.

Embodiment

(the first mode of execution)

Below, with reference to accompanying drawing, the first mode of execution of the present utility model is described.

Fig. 1 is the figure of the electromagnetic valve device 1 illustrated involved by present embodiment, and this electromagnetic valve device 1 controls oil pressure in the oil hydraulic circuit of automatic transmission.

This electromagnetic valve device 1 has the outer cover 11 of bottomed cylindrical, and resin molded article 12 is fixed with the state be accommodated in this outer cover 11.There is fixed plate 13 at the bottom insert-molding of this resin molded article 12, be formed with drum 14 in the position of side more top than this fixed plate 13.The lower end side of described fixed plate 13 is provided with nozzle 15, and the lip part 16 being arranged at terminal side of this nozzle 15 is together riveted on described outer cover 11 with described fixed plate 13 and is fixed.

To reel winding wire and form coil 21 at described drum 14, the winding wire of this coil 21 is connected with splicing ear 22.Thus, the o 23 producing magnetic force according to the signal being supplied to this splicing ear 22 is defined.

In this o 23, be embedded with the iron core 31 as secured core, the state that this iron core 31 is embedded in described fixed plate 13 with its underpart is located and is fixed.The length of described iron core 31 is configured to: under the state that iron core 31 is fixed, and the upper end portion of described iron core 31 is given prominence to than the upper-end surface of described o 23, and the upper-end surface of this iron core 31 forms the suction surface utilizing magnetic force.

Accommodate between described o 23 and the end of described outer cover 11 and attracted by described iron core 31 and the movable platen 41 moved up and down.It is discoideus that this movable platen 41 is formed as extending along the upper-end surface of described o 23, and the outer circumferential face of this movable platen 41 is formed in the mode of the inner side surface near described outer cover 11.Thus, the outer circumferential face of described movable platen 41 is formed in the transport part of carrying out flux transfer between described outer cover 11.

Be fixed with columned upper bar 51 at the central part of described movable platen 41, this upper bar 51 can be inserted in described iron core 31 up or down.In the lower end of described upper bar 51, lower pole 52 is arranged on the elongation line of described upper bar 51, form plunger 53 by this lower pole 52, described upper bar 51 and described movable platen 41, this plunger 53 is configured to by the excitation of described o 23 and is driven by the below to the axial axis 54 of movement as this plunger 53.

Be formed with the large-diameter portion 61 of the terminal side being arranged at nozzle 15 at described nozzle 15 and be arranged at the minor diameter part 62 of end side of nozzle 15.Be formed with the pressure release path 63 of release residue oil pressure at the terminal side of described large-diameter portion 61, this pressure release path 63 discharges in the lateral direction.The cardinal extremity face central authorities of described nozzle 15 are provided with terminal side countersink, and insert portion 64 is fixed to be embedded in the state of this terminal side countersink.This insert portion 64 is formed as tubular, and is formed with terminal side valve chamber 65 at its end side.

Described lower pole 52 movably can be inserted in this insert portion 64 along described axis 54, and the axle portion 71 that diameter is less than this lower pole 52 extends from the end of this lower pole 52.Be formed with pressure holding valve 72 in this axle portion 71, this pressure holding valve 72 can be formed along the mode of described axis 54 movement in described terminal side valve chamber 65.

As shown in Figure 2, described pressure holding valve 72 is made up of the first taper valve core 81 and the second taper valve core 82, first taper valve core 81 is diametrically along with the end side from described axle portion 71 becomes large taper upward, second taper valve core 82 is diametrically along with the taper that the cardinal extremity from this first taper valve core 81 diminishes upward, and described first taper valve core 81 is adjacent with described second taper valve core 82 and be integrally formed.

Be formed with the end in described axle portion 71 of this taper valve core 81,82, the pushing part 91 that diameter is less than this axle portion 71 is formed on the elongation line in this axle portion 71.

The bottom surface of described terminal side valve chamber 65 is provided with terminal side intercommunicating pore 101, be formed with funnelform first conical valve seal portion 102 as shown in the figure at the peripheral part of this terminal side intercommunicating pore 101, described first taper valve core 81 leaves or is seated at the first conical valve seal portion 102.Further, at the end face of described terminal side valve chamber 65, funnelform second conical valve seal portion 103 is as shown in the figure formed in the peripheral part of the through hole of described insert portion 64, and described second taper valve core 82 leaves or be seated at the second conical valve seal portion 103.

The end side of this terminal side valve chamber 65 is provided with the first valve port 201, and this first valve port 201 is formed in the mode of crossing described nozzle 15.The end of this nozzle 15 is provided with end side countersink, defines end side valve chamber 202 by this end side countersink.

Next door 211 is formed between this end side valve chamber 202 and described first valve port 201, this next door 211 is provided with the first opening 212, described first valve port 201 is communicated with described end side valve chamber 202 by the first opening 212, and the described pushing part 91 of described plunger 53 can run through and is inserted in the first opening 212.At the lower surface in described next door 211, the first sealed department 213 is formed at the opening edge of described first opening 212, and described first sealed department 213 is formed as funnel-like as shown in the figure.

Accommodate valve arrangement body 221 at described end side valve chamber 202, prevent this valve arrangement body 221 from coming off by the C shape circle 203 being installed on the underpart of described end side valve chamber 202.Thus, described valve arrangement body 221 is surrounded by the described minor diameter part 62 of described next door 211, described nozzle 15 and described C shape circle 203, by the described minor diameter part 62 of described next door 211, described nozzle 15 and the valve arrangement body accommodating part 222 of the described valve arrangement body 221 of described C shape circle 203 formation accommodation.

There is the second valve port 231 at the end of described nozzle 15, this second valve port 231 is communicated with described end side valve chamber 202.Be configured to following structure thus: the described valve arrangement body 221 being contained in this end side valve chamber 202 is configured on the stream between described first valve port 201 and described second valve port 231, between described first valve port 201 and described second valve port 231, carry out valve opening and valve closing.

Described valve arrangement body 221 is made up of the first valve member 251 and the second valve member 252, first valve member 251 is in hollow shape, and be retained as and can move along described axis 54 in described valve arrangement body accommodating part 222, the second valve member 252 is retained as and can moves along described axis 54 in this first valve member 251.

This second valve member 252 is formed as spherical and to be formed in spherical mode above the described axis 54 of this second valve member 252.In addition, also can in coniform above the described axis 54 of described second valve member 252, preferably this second valve member 252 is in spherical or cone shape bullet shape above described axis 54.

On the upside of the described axis 54 of described first valve member 251, be formed with the sealing can be close to the complete cycle of described first sealed department 213 being arranged at described next door 211 be close to portion 261.Sealing is close to the inclined-plane that portion 261 tilts upward by the center along with the radial direction 273 towards this first valve member 251 and is formed, and is formed as the umbrella outstanding upward along with the center of the radial direction 273 towards this first valve member 251.

The opening 271 of the regulation be communicated with described first opening 212 is formed in the inner side that portion 261 is close in described sealing, on the upper inner face of this first valve member 251, second sealed department 272 is formed at the opening edge of the opening 271 of described regulation, and described second valve member 252 leaves or be seated at the second sealed department 272.Thus, described sealing is close to portion 261 and is formed as follows: described second sealed department 272 contacted with described second valve member 252 is positioned at the position contacted with described first sealed department 213 of being close to portion 261 than described sealing by the position inside radial 273, described second valve member 252 be configured to be formed be close to the complete cycle of described second sealed department 272 be close to state and contactless state.

Described first valve member 251 opens wide downward, is embedded with discoideus limiting unit 281 at this open section.Thus, as shown in Figure 3 and 4, on the downside of the described axis 54 of described first valve member 251, be provided with the position restraining portions 282 abutted with described second valve member 252 moved below described axis 54.

As shown in Figure 2, the central authorities of described limiting unit 281 are provided with circular through hole 291, form by this through hole 291 the second opening that the opening 271 via described regulation is communicated with described first opening 212.Thus, in the described limiting unit 281 being provided with described position restraining portions 282, from position overlapping with described second valve member 252 during described end on observation, be provided with described through hole 291.In addition, in the present embodiment, although be illustrated the situation being provided with circular through hole 291 in described limiting unit 281, also can be made up of recess.

Described first valve member 251 has the multiple joints 301 connecting described sealing and be close to portion 261 and described position restraining portions 282, and each joint 301 is configured in the peripheral part of this second valve member 252 in the mode of surrounding described second valve member 252.

The setting spaced apart in the circumference of described second valve member 252 of described each joint 301, the outer side surface of described each joint 301 is formed as follows: the outer side surface of described each joint 301 is positioned at is close to the outer rim in portion 261 and the outer rim of described position restraining portions 282 by the position outside described radial 273 than described sealing.

Side mouth portion 311 is provided with between described each joint 301.Described second opening that the opening 271 via described regulation is communicated with described first opening 212 is formed by each side mouth portion 311.

The described valve arrangement body accommodating part 222 holding described valve arrangement body 221 has the inner circumferential barrel surface 321 extended along described axis 54, and the envelope surface be made up of the outer side surface of described joint 301 has the periphery barrel surface 322 extended spaced a slight clearance with described inner circumferential barrel surface 321.

And, the size in the direction orthogonal with described axis 54 is configured to: the internal diameter size of described valve arrangement body accommodating part 222 is larger than the outside dimension of described first valve member 251, and is set to: the internal diameter size of described first valve member 251 is larger than the outside dimension of described second valve member 252.Thus, than described each joint 301 region in the inner part and the throughput being formed with fluid than described each joint 301 region in the outer part and can circulating.

The first valve member 251 is like this parts be connected that described sealing is close to portion 261 and is integrally formed by homogenous material with described joint 301, and the described limiting unit 281 forming described position restraining portions 282 is mechanically fastened the underpart in described each joint 301 by being pressed into and rivet.

As shown in Figure 4, described second valve member 252 has rake 401, under the state that described second valve member 252 contacts with described position restraining portions 282, when observing below described axis 54, rake 401 from the contacting part of described second valve member 252 and described position restraining portions 282 along with towards outside described radial 273 to described axis 54 inclined upward.Thus, described second valve member 252 is with the downside of described second valve member 252 along with downward and the mode that substantially horizontal sectional area diminishes is formed, and described second valve member 252 is formed as follows: be formed with the second valve jack-up of being communicated with described second valve port 231 on the downside of described axis 54 when described second valve member 252 is in valve opening state with space 402.

Form as follows: as shown in Figure 1, described first valve port 201 of this electromagnetic valve device 1 be connected with supply oil pressure the oil pump as oil pressure generating mechanism and utilize oil pressure and action as the oil clutch of device being supplied to oil pressure, and to form as follows: be connected with the accumulator as pressure accumulation mechanism keeping oil pressure at described second valve port 231.

Thus, form as follows: in described terminal side valve chamber 65, when described o 23 is in non-excited state, oil pressure is applied from described first valve port 201, when the oil pressure of this first valve port 201 side becomes the barometric pressure height than described pressure release path 63 side be communicated with air, as shown in Figure 1 and Figure 2, described pressure holding valve 72 is subject to this pressure difference and retreats above described axis 54, and form as follows at this moment: described second taper valve core 82 of described pressure holding valve 72 is seated at described second conical valve seal portion 103 thus cuts off being communicated with of described first valve port 201 and described pressure release path 63.

Now, form (diagram omit) as follows: form described first valve member 251 of described valve arrangement body 221 and described second valve member 252 and bear oil pressure from described first valve port 201, move below described second valve port 231 side, i.e. described axis 54 and carry out valve opening, thus form as follows: the oil pressure supplied from described first valve port 201 can be imported described accumulator.

And, when described oil pump stops, the oil pressure of described first valve port 201 becomes the low fuel pressure than described second valve port 231, such as, when making the so-called idling flameout of engine stop when vehicle parking etc., as shown in Figure 2, form as follows: form described first valve member 251 of described valve arrangement body 221 and described second valve member 252 and bear oil pressure from described second valve port 231, and valve closing is carried out in movement above described first valve port 201 side, i.e. described axis 54, thus form as follows: the oil pressure importing described accumulator can be kept.Namely, form as follows: when the pressure of the second valve port 231 described in the pressure ratio of described first valve port 201 is low and described o 23 is non-excited state, by means of the difference of described pressure, described first valve member 251 is close to described first sealed department 213, described second valve member 252 is close to described second sealed department 272, thus becomes valve closing state.

Next, when supplying oil pressure to described oil clutch under the state stopped at described oil pump, as shown in Figure 1 and Figure 3, by the excitation that is energized to described o 23, described plunger 53 starts to move below described axis 54.

So, as shown in Figure 3, for described electromagnetic valve structure body 221, by described plunger 53 to the initial movable below described axis 54, described pushing part 91 presses described second valve member 252, this second valve member 252 is moved below described axis 54, and that removes described second valve member 252 and described second sealed department 272 with this is close to state.Thus, form as follows: between described first valve port 201 and the second valve port 231, be formed with first flow path 501.

Then, if described plunger 53 moves further below described axis 54, then as shown in Figure 4, described second valve member 252 abuts with described position restraining portions 282, move below described first valve member 251 and the described in the same way axis 54 of described second valve member 252 1, what portion 261 and described first sealed department 213 were close in the described sealing relieving described first valve member 251 with this is close to state.Thus, as shown in FIG. 4 and 5, form as follows: also add except being formed with described first flow path 501 between described first valve port 201 and described second valve port 231 and be formed with the second stream 511.

Now, form as follows (with reference to Fig. 1): as shown in Figure 4, in described terminal side valve chamber 65, described pressure holding valve 72 moves below described axis 54, thus described first taper valve core 81 of this pressure holding valve 72 is seated at described first conical valve seal portion 102, cut off being communicated with of described first valve port 201 and described pressure release path 63.

In the present embodiment relating to above structure, when valve arrangement body 221 is in valve closing state, moved to the initial stage below axial 54 by plunger 53, make this plunger 53 press the second valve member 252 and carry out opening action, first flow path 501 can be formed between the first valve port 201 and the second valve port 231 with this.

Further, by the further movement of described plunger 53, described second valve member 252 abuts with the position restraining portions 282 of the first valve member 251.Like this, carry out opening action because this first valve member 251 moves below described axis 54, be formed with the second stream 511 therefore, it is possible to add between described first valve port 201 and described second valve port 231.

Like this, making described second valve member 252 carry out the starting stage of opening action, owing to being only formed with described first flow path 501, thus can suppress to make described second valve member 252 carry out the steering force of opening action.

Afterwards, by described second stream 511 of additional formation, the stream be made up of described first flow path 501 and described second stream 511 can be formed.Thereby, it is possible to guarantee desired through-current capacity.

Therefore, it is possible to guarantee desired flow and o 23 can not be made to maximize.

And, because described plunger 53 and described first valve member 251 and described second valve member 252 are consisted of a point body component, therefore, it is possible to reliably guarantee the sealing state of each valve member 251,252 when valve closing and Element Design, processing and assembly precision need not be required.

Reliably can guarantee sealing state therefore, it is possible to provide a kind of and not rely on the electromagnetic valve device 1 of part, processing and assembly precision.

Further, due to can using described valve arrangement body 221 inside as stream, therefore, it is possible to successfully carry out pressure accumulation and pressure accumulation release.

And, due to can using form described valve arrangement body 221 multiple joints 301 circumference between as throughput, therefore, it is possible to realize the increase of flow.

And the outer side surface of described joint 301 is positioned at is close to the outer rim in portion 261 and the outer rim of described position restraining portions 282 position by radial outside than described sealing.Thereby, it is possible to flow when increasing described first sealed department 213 of release.

And, described first valve member 251 is the parts be connected that described sealing is close to portion 261 and is integrally formed by homogenous material with described joint 301, forms the described limiting unit 281 of described position restraining portions 282 by being pressed into and riveting the underpart being by preference mechanically anchored described each joint 301.

Thereby, it is possible to realize the simplification of assembling procedure.

And the second sealed department 272 contacted with described second valve member 252 is positioned at the position contacted with described first sealed department 213 of being close to portion 261 than described sealing by the position inside described radial 273.

Thereby, it is possible to separately form described first sealed department 213 and described second sealed department 272.Therefore, it is possible to improve the tightness of the first sealed department 213 and described second sealed department 272 respectively.

Further, from position overlapping with described second valve member 252 during end on observation, it (also can be recess that described position restraining portions 282 has through hole 291.)。

Therefore, under the state of pressure accumulation, oil easily pushes described second valve member 252 to top from below by described through hole 291 grade.Thereby, it is possible to form the valve keeping pressure accumulation state without the need to external auxiliary.

And, described second valve member 252 has rake 401, under the state that described second valve member 252 contacts with described position restraining portions 282, when observing below described axis 54, rake 401 from the contacting part of described second valve member 252 and described position restraining portions 282 along with towards outside radial 273 to described axis 54 inclined upward.

Thus, under the state of pressure accumulation, easily oil pressure applied to described rake 401 and described second valve member 252 pushed from below to top.Therefore, it is possible to form the valve keeping pressure accumulation state without the need to external auxiliary.

And, the size in the direction orthogonal with described axis 54 is set to: the internal diameter size of described valve arrangement body accommodating part 222 is larger than the outside dimension of described first valve member 251, and the internal diameter size of described first valve member 251 is larger than the outside dimension of described second valve member 252.

Thereby, it is possible to form described first flow path 501 and described second stream 511 when valve opening, flow is made to be divided into two phase change.

And the second valve jack-up be communicated with described second valve port 231 on the downside of described axis 54 when can be formed in described second valve member 252 in valve opening state is with space 402.

Therefore, it is possible to the pressure bearing space of the second valve member 252 described in the jack-up of valve closing direction when to be formed in described second valve port 231 side be high pressure.

(the second mode of execution)

Fig. 6 is the figure that the second mode of execution is shown, the supporting slice 2001 that inner side upward extends also can be set from the bight, bottom surface of described first valve member 251, by the pressure bearing space that described second valve jack-up with space 402 be made up of of described second valve member 252 to valve closing direction jack-up when to be formed in described second valve port 231 side be high pressure.

(the 3rd mode of execution)

Fig. 7 is the figure that the 3rd mode of execution is shown, the horizontal section of described first valve member 251 also can be polygonal.

In addition, in the present embodiment, showing horizontal section as row subgraph is orthohexagonal situation.

Claims (17)

1. an electromagnetic valve device, has:

Valve arrangement body, it is configured at the liquid flow path between the first valve port and the second valve port, carries out the valve opening between described first valve port and described second valve port and valve closing; Valve arrangement body accommodating part, it holds described valve arrangement body; And plunger, it is driven by the below to axis by the excitation of o,

The feature of described electromagnetic valve device is,

The described axial upside of described valve arrangement body accommodating part is provided with the first sealed department, and described first sealed department has the first opening be communicated with described first valve port,

And, described valve arrangement body is formed by the first valve member and the second valve member, described first valve member is hollow shape, and be retained as and can move axially described in edge in described valve arrangement body accommodating part, described second valve member is retained as and can moves axially described in edge in described first valve member

The described axial upside of described first valve member is provided with sealing and is close to portion and the second sealed department, described sealing is close to portion and can be close to the complete cycle of described first sealed department, described second sealed department has the opening with the regulation of described first open communication, described second valve member be configured to be formed be close to the complete cycle of described second sealed department be close to state and the discontiguous contactless state of complete cycle with described second sealed department, and the described axial downside of described first valve member is provided with the second opening and position restraining portions, described second opening is via the opening of described regulation and described first open communication, described position restraining portions can abut with described second valve member moved to described axial below,

By described plunger along with the excitation of described o the initial movable to described axial below, described second valve member of described plunger pressing, to move to described axial below by making described second valve member remove that described second valve member and described second sealed department formed be close to state, thus first flow path is formed between described first valve port and described second valve port

By the further movement to described axial below along with the excitation of described o of described plunger, described second valve member abuts with described position restraining portions, and described first valve member is moved to described axial below, what portion and described first sealed department were close in the described sealing removing described first valve member is close to state, thus except described first flow path with except between described first valve port and described second valve port, add formation second stream.

2. electromagnetic valve device according to claim 1, is characterized in that,

Joint is configured with at the peripheral part of described second valve member, described joint connects described sealing and is close to portion and described position restraining portions, and than described joint region in the inner part with than described joint region in the outer part in be provided with the throughput that fluid can circulate.

3. electromagnetic valve device according to claim 2, is characterized in that,

The circumference of described second valve member is provided with multiple described joint at spaced intervals.

4. electromagnetic valve device according to claim 3, is characterized in that,

The outer side surface of described joint is positioned at is close to the outer rim in portion and the outer rim of the described position restraining portions position by radial outside than described sealing.

5. the electromagnetic valve device according to any one in claim 2 to 4, is characterized in that,

The parts be connected as a single entity that portion and described joint are homogenous materials are close in described sealing, are mechanically fastened between described joint and described position restraining portions.

6. the electromagnetic valve device according to any one in claim 2 to 4, is characterized in that,

The described valve arrangement body accommodating part holding described valve arrangement body has along described axially extended inner circumferential barrel surface, and the envelope surface be made up of the outer side surface of described joint is the periphery barrel surface extended spaced a slight clearance with described inner circumferential barrel surface.

7. the electromagnetic valve device according to any one in Claims 1-4, is characterized in that,

The second sealed department contacted with described second valve member is positioned at the position of the position contacted with described first sealed department by radially inner side being close to portion than described sealing.

8. the electromagnetic valve device according to any one in Claims 1-4, is characterized in that,

The position that described position restraining portions is overlapping with described second valve member when observing vertically have through hole or recess.

9. the electromagnetic valve device according to any one in Claims 1-4, is characterized in that,

Described second valve member has rake, under the state that described second valve member contacts with described position restraining portions, when observing from described axial below, described rake from the contacting part of described second valve member and described position restraining portions along with towards radial outside to described axial inclined upward.

10. the electromagnetic valve device according to any one in Claims 1-4, is characterized in that,

The described sealing portion of being close to is formed as along with the umbrella outstanding upward towards radial center.

11. electromagnetic valve devices according to any one in Claims 1-4, is characterized in that,

The top of the axis of described second valve member is spherical.

12. electromagnetic valve devices according to any one in Claims 1-4, is characterized in that,

The top of the axis of described second valve member is coniform.

13. electromagnetic valve devices according to any one in Claims 1-4, is characterized in that,

When the pressure of the second valve port described in the pressure ratio of described first valve port is low and described o is non-excited state, by means of the difference of described pressure, described first valve member and described first sealed department are close to, and described second valve member and described second sealed department are close to, thus form valve closing state.

14. electromagnetic valve devices according to any one in Claims 1-4, is characterized in that,

Keep the pressure accumulation mechanism of oil pressure to be connected with described second valve port, the oil pressure generation mechanism producing oil pressure and the device being supplied to oil pressure are connected with described first valve port.

15. electromagnetic valve devices according to any one in Claims 1-4, is characterized in that,

Size on the direction orthogonal with described axis is configured to: the internal diameter size of described valve arrangement body accommodating part is larger than the outside dimension of described first valve member, and the internal diameter size of described first valve member is larger than the outside dimension of described second valve member.

16. electromagnetic valve devices according to any one in Claims 1-4, is characterized in that,

Described electromagnetic valve device has the second valve jack-up space, and when described second valve member is valve opening state, described second valve jack-up is communicated with described second valve port in described axial downside with space.

17. electromagnetic valve devices according to claim 16, is characterized in that,

Described second valve jack-up with space by making the downside of described second valve member along with downward and substantially horizontal sectional area diminishes and formed.