CN220319697U - Electromagnetic valve structure and vehicle - Google Patents

Abstract

The utility model discloses a solenoid valve structure and a vehicle, and a battery valve structure comprises: the valve body, fixed iron core assembly fixedly arranged in the first valve seat and movable iron core assembly capable of being reciprocally and linearly moved and arranged in the runner; the valve body comprises a first valve seat and a second valve seat which are fixedly connected, and the valve body is provided with a flow passage which is communicated with the first valve seat and the second valve seat; the fixed iron core component is provided with a noise reduction pad which is used for being contacted with the movable iron core component on one side close to the movable iron core component, and the noise reduction pad is made of flexible materials. From this, move the switching that can control battery valve structure of iron core subassembly, set up to fall and make an uproar and fill up the iron core subassembly and fall the pad contact of making an uproar when opening the valve to reduce the noise when opening the valve, and fall the pad of making an uproar and can avoid moving the direct collision wearing and tearing of iron core subassembly and fixed iron core subassembly, improved the life of both.

Description

Electromagnetic valve structure and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to an electromagnetic valve structure and a vehicle.

Background

The electromagnetic valve is an important part for reducing the exhaust gas of the vehicle and saving fuel, and is connected with the carbon tank and the air inlet manifold of the engine so as to suck gasoline vapor stored in the carbon tank into the air inlet manifold and send the gasoline vapor into the engine cylinder to burn out, so that the purpose of reducing the exhaust gas, saving the fuel and the like is achieved.

In the prior art, as the electromagnetic valve is frequently opened, the movable iron core and the static iron core collide directly in the valve opening process, larger collision noise can be generated, when the engine is in an idle working condition, the noise generated by opening the electromagnetic valve can be obviously felt in the vehicle, and the movable iron core and the static iron core collide frequently, so that larger abrasion can be generated.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a solenoid valve structure capable of effectively reducing noise of opening or closing a valve.

The utility model further provides a vehicle adopting the electromagnetic valve structure.

According to an embodiment of the utility model, a solenoid valve structure includes: the valve body, the fixed iron core component fixedly arranged in the first valve seat and the movable iron core component capable of being reciprocally and linearly moved and arranged in the flow channel; the valve body comprises a first valve seat and a second valve seat which are fixedly connected, and the valve body is provided with a flow passage which is communicated with the first valve seat and the second valve seat; the fixed iron core assembly is provided with a noise reduction pad which is used for being contacted with the movable iron core assembly on one side close to the movable iron core assembly, and the noise reduction pad is made of flexible materials.

According to the electromagnetic valve structure provided by the embodiment of the utility model, the moving of the movable iron core component can control the opening and closing of the battery valve structure; the noise reduction pad is arranged on one side of the fixed iron core component, which is close to the movable iron core component, and can be used for enabling the movable iron core component to be contacted with the noise reduction pad when the valve is opened, so that vibration between the fixed iron core component and the movable iron core component is reduced, noise when the valve is opened is reduced, and the noise reduction pad can be used for avoiding direct collision and abrasion of the movable iron core component and the fixed iron core component, so that the service life of the movable iron core component and the fixed iron core component is prolonged.

In some embodiments, the noise reduction pad includes a first contact surface and a second contact surface that are disposed opposite to each other, the first contact surface is fixedly connected with the fixed iron core component, the second contact surface is provided with a curved surface that contacts the movable iron core component, and a non-contact area is formed between the second contact surface and the movable iron core component.

Specifically, the noise reduction pad comprises a plurality of contact blocks which are arranged at intervals, and a non-contact area is formed between two adjacent contact blocks.

Further, the noise reduction pad is annular, and the plurality of contact blocks are radially distributed around the center of the noise reduction pad.

In some embodiments, the fixed iron core assembly includes a fixed iron core and a coil assembly sleeved on the fixed iron core, and the outer layer of the coil assembly is coated with a magnetic conductive sleeve, and the magnetic conductive sleeve is made of a magnetic conductive material.

Specifically, the magnetic conduction sleeve comprises a sleeve part sleeved on the coil assembly and a cover plate part covered on one side of the sleeve part, which is close to the static iron core, wherein the sleeve part is provided with a bottom, which is close to the movable iron core assembly, the noise reduction pad is fixedly arranged on the bottom, and the bottom is provided with a first through hole for the movable iron core assembly to pass through; the cover plate part is provided with a second through hole for the static iron core to pass through.

Further, the coil assembly comprises a coil framework, a coil wound on the coil framework and a contact pin electrically connected with the coil, and the contact pin is fixedly connected with the coil through an injection molding block; the cover plate part is provided with an opening for the contact pin and the injection molding block to extend out of the sleeve part.

In some embodiments, a guide post inserted into the fixed iron core assembly and the movable iron core assembly is arranged on the first valve seat, a return spring is sleeved on the guide post, one end of the return spring is in contact with a first limiting surface on the guide post, and the other end of the return spring is in contact with a second limiting surface on the movable iron core assembly.

Specifically, an inlet and a first cavity communicated with the inlet and the flow passage are arranged on the first valve seat, and a second cavity communicated with the flow passage and at least one outlet communicated with the second cavity are arranged on the second valve seat.

In some embodiments, the movable iron core component is provided with a sealing gasket on one side close to the second valve seat, the second valve seat comprises a seat body and a middle frame fixedly arranged on the seat body, the middle frame is fixedly connected with the first valve seat, a sealing channel is arranged on the middle frame, and the sealing gasket is used for extending into the sealing channel and sealing contact with the sealing channel when the movable iron core component moves towards one side close to the second valve seat.

Specifically, be provided with the recess on the sealed pad, be provided with the mount table on the movable iron core subassembly, the recess cover is established and is fixed on the mount table, the degree of depth of recess is less than the height of sealed pad.

Further, the middle frame comprises a limiting part arranged in the sealing channel, the end face of the limiting part is in contact with the sealing gasket, and a channel hole communicated with the flow channel is further formed in the limiting part; at least one extrusion hole is formed in the sealing gasket, and when the sealing gasket is in contact with the limiting part, the channel hole is extruded Kong Birang.

The vehicle according to an embodiment of the present utility model includes the electromagnetic valve according to any one of the above embodiments, wherein an inlet communicating with the flow passage is provided on the first valve seat, and the inlet communicates with a canister; the second valve seat is provided with a first outlet and a second outlet which are communicated with the flow channel, the first outlet is provided with a first one-way valve, the second outlet is provided with a second one-way valve, and the first outlet is communicated with the air inlet manifold through the first one-way valve; the second outlet is in communication with the turbocharger through the second one-way valve.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:

FIG. 1 is a cross-sectional view of a solenoid valve structure of an embodiment of the utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at circle A;

FIG. 3 is a schematic diagram of a noise reduction pad according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a magnetic conductive sleeve according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram illustrating the solenoid valve structure according to an embodiment of the utility model;

FIG. 6 is a top view of a solenoid valve structure according to an embodiment of the utility model;

FIG. 7 is a schematic diagram of a solenoid valve structure in a closed state according to an embodiment of the utility model;

FIG. 8 is an enlarged view of a portion of FIG. 7 at circle B;

FIG. 9 is a schematic illustration of a first check valve opening according to an embodiment of the present utility model;

FIG. 10 is an enlarged view of a portion of FIG. 9 at circle C;

FIG. 11 is a schematic illustration of a second check valve opening according to an embodiment of the present utility model;

fig. 12 is a partial enlarged view of fig. 10 at circle D.

The reference numerals of the drawings are used to refer,

the battery valve structure 100 is provided with a plurality of valve members,

the valve body 10 is provided with a valve,

a first valve seat 11, a guide post 111, an inlet 112, a first cavity 113,

the second valve seat 12, the seat body 121, the middle frame 122, the seal passage 1221, the stopper 1222, the second cavity 123, the first outlet 124, the second outlet 125, the seal ring 126,

the core assembly 20 is fixed and,

the stationary core 21 is provided with a pair of magnets,

coil assembly 22, coil former 221, coil 222, pin 223, injection molding block 224,

the movable iron core assembly 30, the mounting table 31, the second limiting surface 32,

noise reduction pad 40, first contact surface 41, second contact surface 42, contact block 43, non-contact area 44,

gasket 50, groove 51, extrusion hole 52,

a magnetically permeable sleeve 60,

the sleeve portion 61, the bottom portion 611, the first through hole 6111,

the cover plate portion 62, the second through hole 621,

a return spring 70, a first check valve 80, and a second check valve 90.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

A solenoid valve structure 100 and a vehicle according to an embodiment of the utility model are described below with reference to fig. 1 to 12.

As shown in fig. 1 to 3, a solenoid valve structure 100 according to an embodiment of the utility model includes: valve body 10, fixed iron core assembly 20 and movable iron core assembly 30.

Wherein the valve body 10 comprises a first valve seat 11 and a second valve seat 12 which are fixedly connected, and the valve body 10 is provided with a flow passage which is communicated with the first valve seat 11 and the second valve seat 12; the fixed iron core assembly 20 is fixedly arranged in the first valve seat 11; the movable iron core assembly 30 can be installed in the runner in a reciprocating linear movement manner; the fixed iron core assembly 20 is provided with a noise reduction pad 40 for contacting the movable iron core assembly 30 on a side close to the movable iron core assembly 30, and the noise reduction pad 40 is made of flexible materials.

Specifically, the first valve seat 11 is connected with the second valve seat 12 to define a flow channel, the fixed iron core assembly 20 and the movable iron core assembly 30 are arranged in the flow channel, the fixed iron core assembly 20 is close to the first valve seat 11, the movable iron core assembly 30 is far away from the first valve seat 11, the movable iron core assembly 30 can move towards the first valve seat 11 or away from the first valve seat 11, the movable iron core assembly 30 can control the on-off of the flow channel, the flow channel is conducted when the movable iron core assembly 30 is in contact with the fixed iron core assembly 20, and the battery valve structure 100 opens the valve; the flow passage is closed when the plunger assembly 30 contacts the second valve seat 12 and the solenoid valve structure 100 closes.

It should be noted that, the fixed iron core assembly 20 is provided with a noise reduction pad 40 on a side close to the movable iron core assembly 30, and when the movable iron core assembly 30 is matched with the fixed iron core assembly 20, the noise reduction pad 40 contacts with the noise reduction pad 40, and the noise reduction pad 40 can slow down the collision force between the movable iron core assembly 30 and the fixed iron core assembly 20 so as to reduce noise. The noise reduction pad 40 is made of a flexible material, and may be made of a fluororubber material, but may be made of other rubber materials.

According to the electromagnetic valve structure 100 of the embodiment of the present utility model, the movement of the movable iron core assembly 30 can control the opening and closing of the battery valve structure 100; the noise reduction pad 40 is arranged on one side of the fixed iron core assembly 20, which is close to the movable iron core assembly 30, so that the movable iron core assembly 30 can be contacted with the noise reduction pad 40 when the valve is opened, and vibration between the fixed iron core assembly 20 and the movable iron core assembly 30 is reduced, thereby reducing noise when the valve is opened, and the noise reduction pad 40 can avoid direct collision and abrasion between the movable iron core assembly 30 and the fixed iron core assembly 20, so that the service lives of the movable iron core assembly and the fixed iron core assembly 20 are prolonged.

As shown in fig. 3, in some embodiments, the noise reduction pad 40 includes a first contact surface 41 and a second contact surface 42 that are disposed opposite to each other, the first contact surface 41 is fixedly connected to the fixed iron core assembly 20, the second contact surface 42 is provided with a curved surface that contacts the movable iron core assembly 30, and a non-contact area 44 is formed between the second contact surface 42 and the movable iron core assembly 30.

Specifically, there is a curved surface and a non-contact area 44 between the second contact surface 42 and the movable iron core assembly 30, where the curved surface contacts the movable iron core assembly 30, the movable iron core assembly 30 generates an acting force on the curved surface, and the curved surface is extruded by the acting force to deform the curved surface, and the deformed portion of the curved surface is dispersed into the non-contact area 44. By means of the arrangement, the original plane contact between the noise reduction pad 40 and the movable iron core assembly 30 can be changed into the curved surface contact, the surface-to-surface contact is changed into the point-to-surface contact, the contact area is reduced, and deformation dispersion is facilitated.

As shown in fig. 3, specifically, the noise reduction pad 40 includes a plurality of contact blocks 43 disposed at intervals, and a non-contact area 44 is formed between two adjacent contact blocks 43.

The plurality of contact blocks 43 are made of flexible materials, the plurality of contact blocks 43 are arranged on the second contact surface 42 at intervals, gaps are formed between adjacent contact blocks 43, when the movable iron core assembly 30 is matched with the fixed iron core assembly 20, one side, far away from the second contact surface 42, of the movable iron core assembly 30, of the plurality of contact blocks 43 is contacted, a non-contact area 44 is formed by the gaps between the movable iron core assembly 30 and the adjacent contact blocks 43, and when the contact blocks 43 are deformed by extrusion, deformation parts extend into the non-contact area 44.

Thus, by providing the non-contact area 44, it is possible to provide a deformation space for the contact block 43 to accommodate the deformed portion of the contact block 43, thereby improving the service life of the noise reduction pad 40.

Further, as shown in fig. 3, the noise reduction pad 40 is ring-shaped, and a plurality of contact blocks 43 are radially distributed around the center of the noise reduction pad 40.

Specifically, the noise reduction pad 40 is disposed coaxially with the fixed core assembly 20, and a plurality of contact pieces 43 are disposed on the second contact surface 42, which are uniformly distributed centering on the axis of the noise reduction pad 40, the contact pieces 43 gradually increasing in cross-sectional area in a direction away from the center of the noise reduction pad 40, and illustratively, the contact pieces 43 are smaller in cross-sectional area on the side closer to the center than on the side farther from the center.

The structure of the noise reduction pad 40 is simple, the production and manufacture are convenient and quick, the noise reduction pad 40 is annular, the interference of the noise reduction pad 40 on the movement of the movable iron core assembly 30 can be avoided, the smoothness of the movement of the movable iron core assembly 30 is ensured, the contact blocks 43 are radially distributed, and vibration and noise can be reduced more uniformly.

As shown in fig. 4-5 and fig. 7-12, in some embodiments, the fixed iron core assembly 20 includes a fixed iron core 21 and a coil assembly 22 sleeved on the fixed iron core 21, and the outer layer of the coil assembly 22 is covered with a magnetic conductive sleeve 60, where the magnetic conductive sleeve 60 is made of a magnetic conductive material. When the coil assembly 22 is electrified, the static iron core 21 and the coil assembly 22 generate electromagnetic force, and the magnetic conduction sleeve 60 can play a role in magnetic conduction, so that the electromagnetic force applied to the movable iron core assembly 30 can be improved.

As shown in fig. 2, specifically, the magnetic conductive sleeve 60 includes a sleeve portion 61 sleeved on the coil assembly 22 and a cover plate portion 62 covering a side of the sleeve portion 61 near the stationary core 21, wherein the sleeve portion 61 has a bottom 611 near the movable core assembly 30, the noise reduction pad 40 is fixedly disposed on the bottom 611, and the bottom 611 is provided with a first through hole 6111 for the movable core assembly 30 to pass through; the cover plate portion 62 is provided with a second through hole 621 for the stationary core 21 to pass through.

The stationary core 21 is disposed on a side of the sleeve portion 61 near the first valve seat 11, the cover plate portion 62 is disposed between the first valve seat 11 and the stationary core 21, the cover plate portion 62 contacts the coil assembly 22, which seals an end portion of the sleeve portion 61, a second through hole 621 is formed in a center of the cover plate portion 62, a portion of the stationary core 21 extends out of the sleeve portion 61 through the second through hole 621, and a portion of the stationary core 21 passing through the sleeve portion is fixed with the cover plate portion 62 in an interference manner.

In addition, the sleeve portion 61 is close to the side of the movable iron core assembly 30 and the cover plate portion 62, which are the bottom 611 of the sleeve portion 61, the first contact surface 41 of the noise reduction pad 40 is fixed on the bottom 611, the two can be fixedly connected by means of fixing such as gluing and screwing, a first through hole 6111 is formed in the center of the bottom 611, and the movable iron core assembly 30 partially penetrates through the first through hole 6111 and stretches into the sleeve portion 61, so that the movable iron core assembly 30 can move towards the static iron core 21, and thus the valve opening is realized.

The magnetic conductive sleeve 60 can fully cover the coil assembly 22, so that magnetic flux leakage is avoided, a magnetic line loop can be formed, electromagnetic force required by valve opening can be opened under lower voltage, and heat generated in the working process of the coil assembly 22 can be reduced.

As shown in fig. 1, further, the coil assembly 22 includes a coil bobbin 221, a coil 222 wound around the coil bobbin 221, and a pin 223 electrically connected to the coil 222, the pin 223 being fixedly connected to the coil 222 through an injection molding block 224224; the cover plate portion 62 is provided with openings for the pins 223 and the injection blocks 224224 to extend out of the sleeve portion 61.

Specifically, the contact pin 223 and the coil 222 are made of conductive materials, the contact pin 223 and the coil skeleton 221 may be integrally formed, or may be separately formed, the coil 222 is wound on the coil skeleton 221, and both ends of the coil 222 are connected to the contact pin 223. One side of the cover plate portion 62, which is close to the static iron core 21, is matched with the coil skeleton 221, an opening is formed in the end portion of the cover plate portion 62, so that the contact pin 223 extends out of the sleeve portion 61, the contact pin 223 is electrified or powered off, the coil 222 is in interference fit with the static iron core 21, and magnetic conduction can be conducted when the coil 222 is electrified, so that electromagnetic force between the movable iron core assembly 30 and the static iron core 21 is improved.

The coil assembly 22 is simple in structure, the working state of the coil assembly 22 is conveniently controlled, the contact pins 223 extend out of the sleeve parts 61, and the power on or power off of the coil assembly 22 is conveniently controlled so as to control whether the coil assembly 22 generates electromagnetic force with the movable iron core assembly 30.

As shown in fig. 8 and 10, in some embodiments, a guide post 111 inserted into the fixed iron core assembly 20 and the movable iron core assembly 30 is provided on the first valve seat 11, a return spring 70 is sleeved on the guide post 111, one end of the return spring 70 contacts with a first limiting surface on the guide post 111, and the other end contacts with a second limiting surface 32 on the movable iron core assembly 30.

Specifically, the guide post 111 is disposed inside the first valve seat 11, and extends from the end of the first valve seat 11 toward the second valve seat 12, the guide post 111, the fixed iron core assembly 20, and the movable iron core assembly 30 are coaxially disposed, a via hole is disposed in the centers of the fixed iron core assembly 20 and the movable iron core assembly 30, and the guide post 111 sequentially penetrates through the fixed iron core assembly 20 and the movable iron core assembly 30.

In addition, one end of the guide part far away from the end part of the first valve seat 11 is sleeved with a return spring 70, the return spring 70 is positioned in the movable iron core assembly 30, when the coil assembly 22 is electrified, the movable iron core assembly 30 moves towards the static iron core 21, and the return spring 70 is extruded; when the coil assembly 22 is powered off, the return spring 70 pushes the second limiting surface 32 of the movable iron core assembly 30 under the action of elastic force, so that the movable iron core assembly 30 moves towards the middle frame 122.

In this way, a guiding function can be provided for the movement of the plunger assembly 30, and the return spring 70 can be brought into contact with the first stopper surface and the second stopper surface 32 at one end, so that the plunger assembly 30 can be driven to move toward the center 122.

As shown in fig. 1, specifically, the first valve seat 11 is provided with an inlet 112 and a first cavity 113 communicating with the inlet 112 and the flow passage, and the second valve seat 12 is provided with a second cavity 123 for communicating with the flow passage, and at least one outlet communicating with the second cavity 123.

The first valve seat 11 is fixedly connected with the second valve seat 12, the first cavity 113 and the second cavity 123 are controlled to be on-off by the movable iron core assembly 30, when the movable iron core assembly 30 is matched with the static iron core 21, the first cavity 113 is communicated with the second cavity 123, and gas flowing in from the inlet 112 can flow through the first cavity 113 and the second cavity 123 and be discharged through one of the outlets. Thus, the solenoid valve structure 100 can freely control the flow path of the air flow to adapt to different working environments.

As shown in fig. 1, in some embodiments, the plunger assembly 30 is provided with a gasket 50 for sealing contact with the second valve seat 12 on a side close to the second valve seat 12, the second valve seat 12 includes a seat body 121 and a middle frame 122 fixedly provided on the seat body 121, the middle frame 122 is fixedly connected with the first valve seat 11, a sealing passage 1221 is provided on the middle frame 122, and the gasket 50 is configured to extend into the sealing passage 1221 and be in sealing contact with the sealing passage 1221 when the plunger assembly 30 moves toward the side close to the second valve seat 12.

Specifically, a sealing gasket 50 is arranged on one side of the movable iron core assembly 30, which is close to the second valve seat 12, and the sealing gasket 50 is in contact with the second valve seat 12 when the movable iron core assembly 30 is matched with the second valve seat 12, and the sealing gasket 50 can slow down collision force between the movable iron core assembly 30 and the second valve seat 12 so as to reduce noise, and the sealing gasket 50 can also play a sealing effect to strengthen the sealing performance of the second valve seat 12. The gasket 50 is made of a flexible material, and may be made of a fluororubber material, but may be made of other rubber materials. The sealing gasket 50 is arranged on one side of the movable iron core assembly 30 close to the second valve seat 12, so that the sealing gasket 50 can be contacted with the second valve seat 12 when the valve is closed, vibration and noise between the movable iron core assembly 30 and the second valve seat 12 are reduced, and the sealing performance of the second valve seat 12 is improved

It should be noted that, one side of the middle frame 122 away from the first valve seat 11 is fixed with the seat body 121, one side of the middle frame 122 close to the first valve seat 11 is fixedly connected with the first valve seat 11, when the electromagnetic valve structure 100 is powered off, the movable iron core assembly 30 moves towards the middle frame 122, the sealing gasket 50 disposed on one side of the movable iron core assembly 30 close to the second valve seat 12 contacts with the middle frame 122, the sealing gasket 50 has a vibration damping and noise reducing effect on the contact between the movable iron core assembly 30 and the middle frame 122, and under the elastic action of the reset spring 70, the sealing gasket 50 is elastically deformed, and stretches into the sealing channel 1221 of the middle frame 122.

By this arrangement, the seal passage 1221 can provide a deformation space for the gasket 50 to accommodate the deformed portion of the gasket 50, thereby enlarging the sealing area between the gasket 50 and the middle frame 122 and improving the sealing effect.

In addition, a sealing ring 126 is further disposed in the middle frame 122, which can prevent oil gas in the first valve seat 11 from leaking into the second valve seat 12 through the edge of the middle frame 122.

As shown in fig. 1, in particular, the sealing gasket 50 is provided with a groove 51, the movable iron core assembly 30 is provided with a mounting table 31, the groove 51 is sleeved and fixed on the mounting table 31, and the depth of the groove 51 is smaller than the height of the sealing gasket 50.

The gasket 50 is provided with a groove 51 recessed toward a direction away from the movable iron core assembly 30, the bottom of the movable iron core assembly 30 is provided with a mounting table 31 extending toward a direction away from the movable iron core assembly 30, the mounting table 31 protrudes from the bottom of the movable iron core assembly 30, the mounting table 31 is fitted in the groove 51, and the top of the gasket 50 is in contact with the bottom edge of the movable iron core assembly 30.

The sealing gasket 50 can comprehensively cover the bottom of the movable iron core assembly 30, so that the sealing gasket 50 and the movable iron core assembly 30 are connected conveniently, and the connection tightness of the sealing gasket 50 and the movable iron core assembly 30 is improved.

As shown in fig. 8, further, the middle frame 122 includes a limiting portion 1222 disposed in the sealing channel 1221, an end surface of the limiting portion 1222 contacts the sealing pad 50, and a channel hole communicating with the flow channel is further disposed on the limiting portion 1222; at least one pressing hole 52 is provided in the packing 50, and the pressing hole 52 is retracted from the passage hole when the packing 50 contacts the stopper 1222.

It should be noted that, a limit portion 1222 is disposed on a side of the middle frame 122 near the first valve seat 11, the limit portion 1222 extends from the middle frame 122 toward the first valve seat 11, an end surface of the limit portion 1222 is matched with an edge of the sealing gasket 50, which can define a position of the sealing gasket 50 to ensure a sealing effect, and a passage hole on the limit portion 1222 can ensure air flow. The seal gasket 50 is provided with the extrusion hole 52, and the seal gasket 50 is easy to store gas after the movable iron core assembly 30 is contacted with the middle frame 122, so that the movable iron core assembly 30 can generate bulge, and the seal gasket 50 is provided with at least one extrusion hole 52, so that the stored gas can be discharged, and the seal gasket 50 can better absorb vibration and reduce noise of the movable iron core assembly 30 and the middle frame 122.

As shown in fig. 1 and 9-12, a vehicle according to an embodiment of the present utility model includes the solenoid valve structure 100 of any one of the above embodiments, wherein an inlet 112 communicating with a flow passage is provided on the first valve seat 11, and the inlet 112 communicates with a canister; the second valve seat 12 is provided with a first outlet 124 and a second outlet 125 which are communicated with the flow passage, the first outlet 124 is provided with a first one-way valve 80, the second outlet 125 is provided with a second one-way valve 90, and the first outlet 124 is communicated with the air inlet manifold through the first one-way valve 80; the second outlet 125 communicates with the turbocharger through a second one-way valve 90.

The pressure of the canister is at atmospheric pressure, when the vehicle engine speed is low, the turbocharger is not operating, the coil assembly 22 is energized, the plunger assembly 30 moves toward the first valve seat 11, which is in contact with the stationary core assembly 20, and the first cavity 113 communicates with the second cavity 123. Meanwhile, since the vehicle is started, the intake manifold is at a negative pressure, and since the turbocharger is not operating, the pressure at the second outlet 125 is at atmospheric pressure, the first check valve 80 is opened, the second check valve 90 is closed, and the gas is discharged from the first outlet 124 by the differential pressure.

Thus, when negative pressure is applied at the first outlet 124 end, the first check valve 80 opens and the second check valve 90 closes, creating a negative pressure desorption gas flow path from the inlet 112 through the first cavity 113, the second cavity 123, the first outlet 124 and through the intake manifold.

When the rotational speed of the engine increases, the turbocharger is operated in an intervening manner, a negative pressure greater than that at the first outlet 124 is generated at the second outlet 125, the second check valve 90 is opened, the first check valve 80 is closed, and the gas is discharged from the second outlet 125 by the pressure difference.

Thus, when a greater negative pressure is applied at the second outlet 125, the second check valve 90 opens and the first check valve 80 closes, creating a positive pressure desorption gas flow path from the inlet 112 through the first cavity 113, the second cavity 123, the second outlet 125 and through the turbocharger.

In this way, the fuel vapor in the canister can be drawn into the intake manifold or into the turbocharger and finally into the engine for combustion, and fuel consumption can be reduced.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the utility model. Terms such as "disposed" or the like as used herein may refer to either one element being directly attached to another element or one element being attached to another element through an intermediate member. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.

The present utility model has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. Those skilled in the art will appreciate that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed.

Claims (13)

1. A solenoid valve structure, characterized by comprising:

the valve comprises a valve body (10), wherein the valve body (10) comprises a first valve seat (11) and a second valve seat (12) which are fixedly connected, and the valve body (10) is provided with a flow passage which is communicated with the first valve seat (11) and the second valve seat (12);

a fixed core assembly (20) fixedly disposed within the first valve seat (11);

a movable iron core assembly (30) which is arranged in the runner in a reciprocating linear manner;

the fixed iron core assembly (20) is provided with a noise reduction pad (40) which is used for being in contact with the movable iron core assembly (30) on one side close to the movable iron core assembly (30), and the noise reduction pad (40) is made of flexible materials.

2. The electromagnetic valve structure according to claim 1, characterized in that the noise reducing pad (40) includes a first contact surface (41) and a second contact surface (42) that are disposed opposite to each other, the first contact surface (41) is fixedly connected with the fixed iron core assembly (20), a curved surface that contacts the movable iron core assembly (30) is disposed on the second contact surface (42), and a non-contact area (44) is formed between the second contact surface (42) and the movable iron core assembly (30).

3. The electromagnetic valve structure according to claim 2, characterized in that the noise reducing pad (40) includes a plurality of contact blocks (43) arranged at intervals, and the non-contact area (44) is formed between two adjacent contact blocks (43).

4. A solenoid valve structure according to claim 3, characterized in that said noise reducing pad (40) is annular, said plurality of contact blocks (43) being radially distributed around the center of said noise reducing pad (40).

5. The electromagnetic valve structure according to claim 1, characterized in that the fixed iron core assembly (20) comprises a fixed iron core (21) and a coil assembly (22) sleeved on the fixed iron core (21), the coil assembly (22) is externally coated with a magnetic conductive sleeve (60), and the magnetic conductive sleeve (60) is made of a magnetic conductive material.

6. The electromagnetic valve structure according to claim 5, wherein the magnetic conductive sleeve (60) includes a sleeve portion (61) that is sleeved on the coil block (22) and a cover plate portion (62) that is provided to cover a side of the sleeve portion (61) that is close to the stationary core (21), wherein,

the sleeve part (61) is provided with a bottom (611) close to the movable iron core assembly (30), the noise reduction pad (40) is fixedly arranged on the bottom (611), and a first through hole (6111) for the movable iron core assembly (30) to pass through is arranged on the bottom (611);

the cover plate part (62) is provided with a second through hole (621) for the static iron core (21) to pass through.

7. The electromagnetic valve structure according to claim 6, characterized in that the coil assembly (22) includes a coil bobbin (221), a coil (222) wound on the coil bobbin (221), and a pin (223) electrically connected to the coil (222), the pin (223) being fixedly connected to the coil (222) through an injection molding block (224);

the cover plate part (62) is provided with an opening for the pin (223) and the injection molding block (224) to extend out of the sleeve part (61).

8. The electromagnetic valve structure according to claim 1, characterized in that a guide post (111) inserted into the fixed iron core assembly (20) and the movable iron core assembly (30) is arranged on the first valve seat (11), a return spring (70) is sleeved on the guide post (111), one end of the return spring (70) is in contact with a first limiting surface on the guide post (111), and the other end of the return spring is in contact with a second limiting surface (32) on the movable iron core assembly (30).

9. The electromagnetic valve structure according to claim 1, characterized in that an inlet (112) and a first cavity (113) communicating with the inlet (112) and the flow passage are provided on the first valve seat (11), and a second cavity (123) for communicating with the flow passage and at least one outlet communicating with the second cavity (123) are provided on the second valve seat (12).

10. The electromagnetic valve structure according to claim 1, characterized in that the movable iron core assembly (30) is provided with a sealing gasket (50) for sealing contact with the second valve seat (12) at a side close to the second valve seat (12), the second valve seat (12) comprises a seat body (121) and a middle frame (122) fixedly arranged on the seat body (121), the middle frame (122) is used for being fixedly connected with the first valve seat (11), the middle frame (122) is provided with a sealing channel (1221), and the sealing gasket (50) is used for extending into the sealing channel (1221) and sealing contact with the sealing channel (1221) when the movable iron core assembly (30) moves towards a side close to the second valve seat (12).

11. The electromagnetic valve structure according to claim 10, characterized in that the sealing gasket (50) is provided with a groove (51), the movable iron core assembly (30) is provided with a mounting table (31), the groove (51) is sleeved and fixed on the mounting table (31), and the depth of the groove (51) is smaller than the height of the sealing gasket (50).

12. The electromagnetic valve structure according to claim 10, characterized in that the middle frame (122) includes a limiting portion (1222) disposed inside the seal passage (1221), an end surface of the limiting portion (1222) is in contact with the gasket (50), and a passage hole communicating with the flow passage is further provided in the limiting portion (1222);

at least one extrusion hole (52) is formed in the sealing gasket (50), and the extrusion hole (52) is prevented from being away from the channel hole when the sealing gasket (50) is in contact with the limiting part (1222).

13. A vehicle comprising a solenoid valve arrangement (100) according to any one of claims 1-12, wherein,

an inlet (112) communicated with the flow passage is arranged on the first valve seat (11), and the inlet (112) is communicated with a carbon tank;

a first outlet (124) and a second outlet (125) which are communicated with the flow channel are arranged on the second valve seat (12), a first one-way valve (80) is arranged on the first outlet (124), a second one-way valve (90) is arranged on the second outlet (125), and the first outlet (124) is communicated with an air inlet manifold through the first one-way valve (80); the second outlet (125) communicates with the turbocharger through the second one-way valve (90).