CN206770648U - Magnetic valve, changing air valve phase control device and vehicle - Google Patents

Abstract

The utility model provides a kind of magnetic valve, changing air valve phase control device and vehicle, and the magnetic valve includes：Spool portion, spool portion include valve body and valve element, and valve body is provided with least one control mouth and oil inlet, and valve element is arranged in valve body, can reciprocatingly slided in valve body, to control the on off operating mode between control mouth and oil inlet；Solenoid part, solenoid part include guide rod, dynamic iron core and coil assembly, and the electromagnetic force of coil assembly changes, and dynamic iron core can be controlled to move back and forth, and dynamic iron core is arranged on guide rod, the first end connection of guide rod and valve element, to drive valve core movement；The solenoid part also includes the bearing of support guide rod, and the bearing is sliding bearing.Magnetic valve of the present utility model can reduce cost, improve reliability, simplify technique so that technique, which is realized, to be more convenient, and improves the efficiency of solenoid part.

Description

Magnetic valve, changing air valve phase control device and vehicle

Technical field

It the utility model is related to a kind of electromagnetic hydraulic field, more particularly to a kind of magnetic valve, changing air valve phase control dress Put and vehicle.

Background technology

Fig. 1 show a kind of structural representation of VVT phase controlling proportion magnetic valve in the prior art Figure.It goes in automobile engine VVT phase control system, is readily applicable to similar automobile Other industries of variable valve timing system of engine phase controlling.

As shown in figure 1, proportion magnetic valve of the prior art mainly includes spool portion and solenoid part two parts, its Middle spool portion includes valve body 1, valve element 2 and spring 3, and solenoid part mainly includes guide rod 4, dynamic iron core 5 and coil assembly 6 Deng, wherein, control mouth and oil inlet are provided with valve body 1, valve element 2 can reciprocatingly slide, with the control mouth on valve body 1 and Oil inlet coordinates, to control the on off operating mode between oil inlet and control mouth；The action of valve element 2 is the guide rod 4 by being attached thereto Come what is controlled, dynamic iron core 5 is provided with guide rod 4, the power on/off state change of coil assembly 6, changes dynamic iron core 5 and coil assembly 6 Between electromagnetic force, realize guide rod 4 commutation movement.

Problems be present in proportion magnetic valve of the prior art：Linear bearing 7 that guide rod 4 is set by its both ends enters Row is oriented to, and the cost of linear bearing 7 is larger, and volume is larger, and it is inconvenient that technique is realized, and can cause the effective of solenoid part Magnetic circuit area is reduced, and reduces efficiency.

Utility model content

The purpose of this utility model is to provide a kind of magnetic valve, changing air valve phase control device and vehicle, can dropped Low cost, technique, which is realized, to be more convenient, and improves the effective magnetic circuit area and efficiency of solenoid part.

Technical scheme provided by the utility model is as follows：

A kind of magnetic valve, including：

Spool portion, including valve body and valve element, the valve body are provided with least one control mouth and oil inlet, the valve element It is arranged in the valve body, can be reciprocatingly slided in the valve body, controls between the control mouth and the oil inlet On off operating mode；

And solenoid part, the solenoid part include guide rod, dynamic iron core and coil assembly, the coil assembly Electromagnetic force changes, and the dynamic iron core can be controlled to move back and forth, and the dynamic iron core is arranged on the guide rod, the guide rod and institute The first end connection of valve element is stated, to drive the valve core movement；

The solenoid part also includes the bearing for supporting the guide rod, and the bearing is sliding bearing.

Further, the spool portion also includes：For applying bullet to the valve element in the valve element sliding process Property active force elastic shock attenuation reset assembly, the valve body is being fixed with rigid back-up ring away from one end of the solenoid part, The elastic shock attenuation reset assembly is resisted against between the valve element and the rigid back-up ring.

Further, the elastic shock attenuation reset assembly includes spring and the spring base for the end for being arranged on the spring.

Further, the outer peripheral face of the valve element is provided with least two ledge structures, between two of which ledge structure Part be that can penetrate the first concave part of the control mouth and the oil inlet, the outer peripheral face of the valve element close to its The outside dimension of the part of one end is less than the outside dimension of ledge structure, and has gap between the inwall of the valve body, shape Play the second concave part of feedback throttle into directly being penetrated with the solenoid part inner chamber.

Further, it is provided with least two control mouths in the side wall of the valve body, including the first control mouth and positioned at institute The second control mouth of the side of the close solenoid part of the first control mouth is stated, the oil inlet is positioned at the described first control Between mouth and second control mouth；

On off operating mode between wherein described control mouth and the oil inlet includes first state and the second state,

In the first state, first control mouth is communicated with the oil inlet by first concave part, described Second control mouth disconnects with the oil inlet；In second state, first control mouth disconnects with the oil inlet, described Second control mouth is communicated with the oil inlet by first concave part.

Further, sliding bearing, the sliding bearing point at the guide rod both ends are respectively arranged with the both ends of the guide rod Not Wei Yu the dynamic iron core both ends, and can alternately be contacted with the dynamic iron core in dynamic iron core reciprocating motion, and institute The material for stating the part for being in contact with the dynamic iron core of sliding bearing is less than the nonmetallic of preset value using rigid Material is made.

Further, the solenoid part also includes being used for the dynamic iron core stroke limiting moved back and forth for the dynamic iron core Structure, the dynamic iron core stroke limiting structure have two side walls of the end positions for being used to limit the dynamic iron core, wherein institute That states sliding bearing is partially protrude through the side wall for what is be in contact with the dynamic iron core.

Further, the solenoid part also includes shell, wherein passing through riveting between the valve body and the shell Mode connects.

A kind of changing air valve phase control device, including magnetic valve as described above.

A kind of vehicle, including magnetic valve as described above.

The beneficial effects of the utility model are as follows：

Magnetic valve provided by the utility model, the guide bearing of guide rod uses the slip with self-lubricating effect in magnetic valve Bearing, the linear bearing in conventional solenoid valve is substituted, cost can be reduced, improve reliability, simplify technique so that technique is realized It is more convenient, and the volume ratio linear bearing of sliding bearing is small, therefore effective magnetic circuit face of electromagnet can be caused using sliding bearing Product increase, that is to say, that solenoid part is more than using the electromagnetic force of sliding bearing under identical semiotic function and uses linear axes The electromagnetic force held, improve the efficiency of solenoid part.

Brief description of the drawings

Fig. 1 represents a kind of structural representation of magnetic valve of the prior art；

Fig. 2 represents a kind of structural representation of magnetic valve provided in the utility model embodiment；

Fig. 3 represents the spring-fixed structure partial structural diagram of magnetic valve in the prior art；

Fig. 4 represents a kind of spring-fixed structure partial structurtes of magnetic valve provided in the utility model embodiment；

Fig. 5 represents the structural representation of the valve element of magnetic valve in the prior art；

Fig. 6 represents a kind of structural representation of the valve element of magnetic valve provided in the utility model embodiment；

Fig. 7 represents the structural representation of dynamic iron core and guide rod in the prior art；

Fig. 8 represents the dynamic iron core of the magnetic valve provided in the utility model embodiment and the structural representation of guide rod；

Fig. 9 represents a kind of symbol basis figure of the two four port valves formula magnetic valve provided in the utility model embodiment.

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer The accompanying drawing of type embodiment, the technical scheme of the utility model embodiment is clearly and completely described.Obviously, it is described Embodiment is part of the embodiment of the present utility model, rather than whole embodiments.Based on described of the present utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained, belong to the scope that the utility model is protected.

Linear bearing support guide rod is used for magnetic valve in the prior art, causes cost big, and technique realizes inconvenience, The problem of solenoid part efficiency is low, the utility model provide a kind of electromagnet, can reduce cost, and technique is realized more square Just, the efficiency of solenoid part is improved.

As shown in Fig. 2 the magnetic valve provided in the utility model embodiment includes：

Spool portion 10, including valve body 11 and valve element 12, the valve body 11 are provided with least one control mouth and oil inlet, The valve element 12 is arranged in the valve body 11, can be reciprocatingly slided in the valve body 11, to control the control mouth and institute State the on off operating mode between oil inlet；

And solenoid part 20, the solenoid part 20 includes guide rod 21, dynamic iron core 22 and coil assembly 23, described The electromagnetic force of coil assembly 23 changes, and the dynamic iron core 22 can be controlled to move back and forth, and the dynamic iron core 22 is arranged on described lead On bar 21, the guide rod 21 is connected with the first end of the valve element 12, to drive the valve element 12 to move；

Wherein described solenoid part 20 also includes the bearing for supporting the guide rod 21, and the bearing is sliding bearing 24.

Magnetic valve provided by the utility model, the guide bearing of guide rod 21 uses the cunning with self-lubricating effect in magnetic valve Dynamic bearing 24, the linear bearing in conventional solenoid valve is substituted, cost can be reduced, improve reliability, simplify technique so that technique Realize and be more convenient, and the volume ratio linear bearing of sliding bearing 24 is small, therefore having for electromagnet can be caused using sliding bearing 24 Imitate the increase of magnetic circuit area, that is to say, that for solenoid part 20 under identical semiotic function, the electromagnetic force using sliding bearing 24 is big In the electromagnetic force using linear bearing, the efficiency of solenoid part 20 is improved.

Illustrate the preferred embodiment of magnetic valve provided by the utility model below.

First, it is necessary to which explanation is, in prior art before being illustrated to magnetic valve provided by the utility model In, as shown in figures 1 and 3, spring 3 is additionally provided with the valve body 1 of the spool portion, the spring 3 plays damping to valve element 2 Buffering and the effect resetted, the end of spring 3 set spring base 8, jump ring 9 are supported between the end of valve body 1 and spring base 8, with Play a part of fixed spring 3.This structure, due to the rigidity deficiency of jump ring 9, the force value of spring 3 can be caused to fluctuate, and The degree of regulation and functional reliability for making magnetic valve reduce.

It is as shown in Figure 2 and Figure 4, described in preferred embodiment provided by the utility model in order to solve the above problems Spool portion 10 also includes：Elasticity for applying elastic acting force to the valve element 12 in the sliding process of valve element 12 subtracts Reset assembly 13 is shaken, the valve body 11 is fixed with rigid back-up ring 14, the elasticity in one end away from the solenoid part 20 Damping reset assembly 13 is resisted against between the valve element 12 and the rigid back-up ring 14.

Using such scheme, jump ring of the prior art instead of by rigid back-up ring, add rigid, solve Cause spring effect force value to fluctuate due to jump ring rigidity deficiency in the prior art, due to many reasons such as thumps, and make The degree of regulation of proportion electro-magnet reduces and the problem of less reliable.

Wherein, the rigid back-up ring 14 can be fixed in the valve body 11 in the following manner：As illustrated, in valve body 11 inwalls open up groove, and the rigid back-up ring 14 is embedded in the groove.Simple in construction using such scheme, technique is realized It is convenient.Of course, it should be understood that in actual applications, specific fixed form for the rigid back-up ring 14 and without limit It is fixed.

In addition, in embodiment of the present utility model, it is preferred that as shown in Figure 2 and Figure 4, the elastic shock attenuation reset group Part 13 includes spring 131 and is arranged on the spring base 132 of the end of the spring 131.It should be understood that for the elasticity The concrete structure of damping reset assembly 13 can also have other implementations in actual applications.

In addition, as shown in Figure 1 and Figure 5, in the prior art, it is usually provided with the outer peripheral face of valve element 2 of magnetic valve multiple Ledge structure, to form concave part, coordinate with the control mouth on valve body 1 and oil inlet, the cross-sectional area of each ledge structure is (outer Footpath size) it is equal, for example, valve element 2 has a ledge structure 2a in one end for connection guide 4, ledge structure 2a's deposits The difficulty of processing of part is added on the one hand, and on the other hand, in the moving process of valve element 2, ledge structure 2a may Interference is produced with solenoid part, and limits the motion of valve element 2.But dynamic iron is had been provided with the coil assembly 6 of solenoid part Core stroke limiting structure 6a, it is that dynamic iron is limited by dynamic iron core stroke limiting structure 6a between coil assembly 6 and dynamic iron core 5 The shift motion of core, and if the ledge structure 2a of end in the connection guide 4 of valve element 2 interfered with solenoid part, meeting Limit the motion of valve element 2, that is to say, that if producing interference between ledge structure 2a and solenoid part, valve element 2 can be caused Positioning there is the problem of positioning；Also, it is provided with feedback throttle on the ledge structure of the end in the connection guide 4 of valve element 2 Aperture 2b, the fluid oil return for solenoid part can produce power-assisted to valve element, cause the sensitivity of valve element 2 can reduce.

In order to solve it is above-mentioned the problems of in the prior art, in preferred embodiment provided by the utility model, As shown in Figure 2 and Figure 6, the outer peripheral face of the valve element 12 is provided with least two ledge structures 120, two of which ledge structure Part between 120 forms the first concave part 121 that can penetrate the control mouth and the oil inlet, the valve element 12 it is outer Side face close to its first end part outside dimension be less than the ledge structure 120 outside dimension, with the valve body There is gap between 11 inwall, formed and directly penetrate with the inner chamber of solenoid part 20 and play the second of feedback throttle Concave part 122.

Using such scheme, one end of the connection guide 21 of valve element 12 is designed as its outside dimension and is less than other ledge structures 120 external diameter, can design the end of the connection guide 21 of valve element 12 outside one outside dimension is less than at other ledge structures The ledge structure of footpath size, or, ledge structure is not directly redesigned in the end of the connection guide 21 of valve element 12, in this way, one Aspect, the processing technology of valve element 12 can be simplified, on the other hand, can avoid producing between valve element 12 and solenoid part 20 and do Relate to, positioning occurred in the positioning for solving the problems, such as valve element 12；Further, since the outer diameter ruler of one end of the connection guide 21 of valve element 12 The very little outside dimension less than at other ledge structures 120, can be with the inwall of valve body 11 in the end of the connection guide 21 of valve element 12 Between directly form gap, the throttling feedback aperture that the gap is alternative to be set on valve element in the prior art is existing so as to solve Have in technology due to feedback throttle aperture is set on valve element and the problem of cause valve element sensitivity decrease.

In addition, in the prior art, as shown in Figure 1 and Figure 7, rubber is bonded with the both ends of the dynamic iron core 5 of solenoid part Glue bolster 5a, rubber bumper 5a play a part of shock absorbing and positioning in the motion process of dynamic iron core 5, but dynamic The both ends sticking rubber bolster 5a of iron core 5, technique are realized inconvenient.

In order to solve the above-mentioned technical problem, in preferred embodiment provided by the utility model, as shown in Figure 2 and Figure 8, Sliding bearing 24 is respectively arranged with the both ends of the guide rod 21, and the sliding bearing 24 at the both ends of the guide rod 21 is located at institute respectively The both ends of dynamic iron core 22 are stated, two sliding bearings 24 can replace in the dynamic iron core 22 reciprocating motion with the dynamic iron core 22 Contact, and the material of the part for being in contact with the dynamic iron core 22 of the sliding bearing 24 is less than in advance using rigid If the nonmetallic materials of value are made.

Using such scheme, the sliding bearing 24 is respectively equipped with the both ends of dynamic iron core 22, and dynamic iron core 22 is being moved through Alternately it can be contacted in journey with sliding bearing 24, therefore, by the portion on the sliding bearing 24 for being contacted with dynamic iron core 22 The material divided is made of nonmetallic materials, because the rigid of nonmetallic materials is smaller, can be moved through in dynamic iron core 22 Cheng Zhong, shock absorbing and positioning are played a part of to dynamic iron core 22, so as to without bonding rubber at the both ends of dynamic iron core 22 again Glue bolster, and solve the problems, such as to realize in the both ends sticking rubber bolster technique of dynamic iron core 22 it is inconvenient.

Preferably, the sliding bearing 24 preferably can with right and wrong metal slide bearing 24, such as：Plastic bearing etc..

In addition, in such scheme, it is preferred that the sliding bearing 24 may include the axle journal for coordinating with guide rod 21 241 and for the bearing shell 242 with the journal engagement, wherein the axle journal 241 is used to contact with dynamic iron core 22, it uses non-gold Category material is made.

Using such scheme, the sliding bearing 24 can be achieved using nonmetallic sliding bearing, and its cost is relatively low.

It should be noted that the concrete structure of the sliding bearing 24 can be not limited merely to this, for the sliding axle Hold and be used for the part that is contacted with dynamic iron core 22 on 24 it can be not limited merely to journal structure.

In addition, in a kind of preferred embodiment provided by the utility model, as shown in Fig. 2 the solenoid part 20 Including the dynamic iron core stroke limiting structure 210 for being moved back and forth for the dynamic iron core 22, the dynamic iron core stroke limiting structure 210 have two side walls of the end positions for being used to limit the dynamic iron core 22, wherein the sliding bearing 24 is used for and institute That states that dynamic iron core 22 is in contact is partially protrude through the side wall.

Using such scheme, the sliding bearing 24 is partially protrude through the dynamic iron for what is be in contact with dynamic iron core 22 The side wall of core stroke limiting structure 210, can preferably it play a part of to the shock absorbing of dynamic iron core 22 and positioning.

Preferably, as shown in Fig. 2 the solenoid part 20 also includes pole shoe 25, on pole shoe 25 and coil assembly 23 Middle cavity is respectively equipped with, the guide rod 21 is applied in the hollow intracavitary of the pole shoe 25 and the coil assembly 23, the pole shoe 25 middle cavity has the first cavity portion 251 and the second cavity portion 252, and the internal diameter of the first cavity portion 251 is less than second The internal diameter of cavity portion 252, the middle cavity of the coil assembly 23 have the 3rd cavity portion 231 and the 4th cavity portion 232, The internal diameter of 3rd cavity portion 231 is less than the internal diameter of the 4th cavity portion 232, wherein, second cavity portion 252 and the 4th cavity portion 232 coordinate jointly and form the dynamic iron core stroke limiting structure 210, first cavity portion 251 and second cavity portion 252 in the sliding bearing 24, and the cunning in first cavity portion 251 are installed respectively At least a portion of dynamic bearing 24 extends to second cavity portion 252, the sliding bearing in the 3rd cavity portion 231 24 at least a portion extends to the 4th cavity portion 232, to cause being used for and dynamic iron core 22 for the sliding bearing 24 What is be in contact is partially protrude through the side wall of the dynamic iron core stroke limiting structure 210.

It should be noted that a kind of preferred structure of the solenoid part 20 is provide only above, for the dynamic iron The specific implementation structure of core stroke limiting structure 210 is not limited thereto in actual applications.

In addition, as shown in Fig. 2 in embodiment provided by the utility model, it is preferred that the solenoid part 20 is also Including shell 26, wherein being connected between the valve body 11 and the shell 26 by riveting method.The solenoid part 20 is also Including signal source plug 27, for connecting signal power source.

In addition it is also necessary to explanation, in preferred embodiment provided by the utility model, the magnetic valve can be one Two four port valve formula electromagnetic valve structures of kind.As shown in Fig. 2 in preferred embodiment of the present utility model, the valve body 11 At least two control mouths are provided with side wall, including the first control mouth A and the second control mouth B, the second control mouth B are located at institute The side of the first control mouth A close solenoid part 20 is stated, the oil inlet P is located at the first control mouth A and institute Between stating the second control mouth B, oil return inlet T is additionally provided with the end of the valve body 11；

On off operating mode between wherein described control mouth and the oil inlet P includes first state and the second state,

In the first state, the first control mouth A is opened by first concave part 121, and with the oil inlet P Communicate, the second control mouth B is closed by ledge structure 120, and is disconnected with the oil inlet P；

In second state, the first control mouth A disconnects with the oil inlet P, and is connected with the oil return inlet T, The second control mouth B is communicated with the oil inlet P by first concave part 121.

It should be noted that above is magnetic valve provided by the utility model is two four port valve formula magnetic valve knots Structure, in actual applications, do not limited for the type of the magnetic valve, set control mouth and oil inlet P on its valve body 11 Quantity and position etc. be not defined.

In addition, magnetic valve provided by the utility model can be automobile engine VVT phase controlling With proportion magnetic valve, other industries of similar automobile engine VVT phase controlling are can equally be well applied to.

Below so that the magnetic valve is automobile engine VVT phase controlling proportion magnetic valve as an example, come Illustrate the operation principle of the magnetic valve.

So that the magnetic valve is two four port valve formula electromagnetic valve structures as an example, its hydraulic pressure symbol is as shown in Figure 9.

When the solenoid is activated, the electromagnetic force increase between the coil assembly 23 of solenoid part 20 and dynamic iron core 22, Dynamic iron core 22 is controlled to be moved to first direction, guide rod 21 promotes valve element 12 to be moved to first direction, then the second control mouth B Progressively close off, while the first control mouth A is gradually opened, and promotes the first control mouth A and the second control mouth B alternations；

When magnet coil powers off, valve element 12 will move under the effect of the elastic force of spring 131 to second direction, and recovery is to entering Hydraulic fluid port P communicates with the second control mouth B, and the first control mouth A communicates with oil return inlet T, electromagnetic valve work position is kept full open shape State；

Magnetic valve constantly repeatedly adjusts the first control mouth in the presence of PWM electric signals (pulse width modulation electric signal) A and the second control mouth B and valve element 12 position, realize automobile engine VVT phase controlling.

Wherein, automobile engine module is by changing current turns ON and the time ratio disconnected in magnetic valve each pulse period Rate (that is, dutycycle), to control the position of valve element 12, wherein, dutycycle is bigger, and valve core of the electromagnetic valve 12 moves to first direction Displacement is bigger, then the second control mouth B is closed, and the first control mouth A communicates with oil inlet P；Otherwise dutycycle is smaller, magnetic valve valve The displacement that core 12 moves to first direction is smaller, then the first control mouth A is closed, and the second control mouth B communicates with oil inlet P.

Automobile engine VVT phase controlling changes valve opening by the control action of the magnetic valve With the time of closing, via the oil gear installed in camshaft front end, camshaft is set to do some Small-angle Rotations in addition, So that inlet valve is opened ahead of time when rotating speed raises；By adjusting engine cam phase, make air inflow can be with engine The change of rotating speed and change, so as to reach best combustion efficiency, improve fuel economy.

A kind of changing air valve phase control device is additionally provided in embodiment of the present utility model, it is new that it includes this practicality The magnetic valve that type embodiment is provided.

A kind of vehicle is additionally provided in embodiment of the present utility model, it includes the electricity that the utility model embodiment is provided Magnet valve.

Obviously, the changing air valve phase control device provided in the utility model embodiment and vehicle can also bring this Technique effect caused by magnetic valve provided in utility model embodiment.

Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and replacement can also be made, these change Enter and replace and also should be regarded as the scope of protection of the utility model.

Claims (10)

1. a kind of magnetic valve, including：

Spool portion, including valve body and valve element, the valve body are provided with least one control mouth and oil inlet, and the valve element is set In the valve body, it can be reciprocatingly slided in the valve body, to control the break-make between the control mouth and the oil inlet State；

And solenoid part, the solenoid part include guide rod, dynamic iron core and coil assembly, the electromagnetism of the coil assembly Power changes, and the dynamic iron core can be controlled to move back and forth, and the dynamic iron core is arranged on the guide rod, the guide rod and the valve The first end connection of core, to drive the valve core movement；

Characterized in that, the solenoid part also includes the bearing for supporting the guide rod, the bearing is sliding bearing.

2. magnetic valve according to claim 1, it is characterised in that

The spool portion also includes：For applying the elasticity of elastic acting force to the valve element in the valve element sliding process Damping reset assembly, the valve body are fixed with rigid back-up ring in one end away from the solenoid part, and the elastic shock attenuation is answered Hyte part is resisted against between the valve element and the rigid back-up ring.

3. magnetic valve according to claim 2, it is characterised in that

The elastic shock attenuation reset assembly includes spring and the spring base for the end for being arranged on the spring.

4. magnetic valve according to claim 1, it is characterised in that

The outer peripheral face of the valve element is provided with least two ledge structures, and the part between two of which ledge structure is can pass through Lead to the first concave part of the control mouth and the oil inlet, the outer peripheral face of the valve element is close to the outer of the part of its first end Footpath size is less than the outside dimension of ledge structure, and has gap between the inwall of the valve body, is formed and the electromagnet Partial lumen directly penetrates and plays the second concave part of feedback throttle.

5. magnetic valve according to claim 4, it is characterised in that

It is provided with least two control mouths in the side wall of the valve body, including the first control mouth and positioned at first control mouth The second control mouth close to the side of the solenoid part, the oil inlet are located at first control mouth and second control Between donsole；

On off operating mode between wherein described control mouth and the oil inlet includes first state and the second state,

In the first state, first control mouth is communicated with the oil inlet by first concave part, and described second Control mouth disconnects with the oil inlet；

In second state, first control mouth disconnects with the oil inlet, second control mouth and the oil inlet Communicated by first concave part.

6. magnetic valve according to claim 1, it is characterised in that

Sliding bearing is respectively arranged with the both ends of the guide rod, the sliding bearing at the guide rod both ends is located at the dynamic iron respectively The both ends of core, and can alternately be contacted with the dynamic iron core in dynamic iron core reciprocating motion, and the use of the sliding bearing Material in the part being in contact with the dynamic iron core is made of nonmetallic materials of the rigid less than preset value.

7. magnetic valve according to claim 6, it is characterised in that

The solenoid part also includes being used for the dynamic iron core stroke limiting structure moved back and forth for the dynamic iron core, the dynamic iron Core stroke limiting structure has two side walls of the end positions for being used to limit the dynamic iron core, wherein the use of the sliding bearing It is partially protrude through in what is be in contact with the dynamic iron core outside the side wall.

8. magnetic valve according to claim 1, it is characterised in that

The solenoid part also includes shell, wherein being connected between the valve body and the shell by riveting method.

9. a kind of changing air valve phase control device, it is characterised in that including the electromagnetism as described in any one of claim 1 to 8 Valve.

10. a kind of vehicle, it is characterised in that including the magnetic valve as described in any one of claim 1 to 8.