CN210290926U

CN210290926U - Hook type sealing interlocking mechanism suitable for high-pressure hydrogen cylinder mouth valve for vehicle

Info

Publication number: CN210290926U
Application number: CN201921324859.2U
Authority: CN
Inventors: 刘永平; 孙方军
Original assignee: Jiangsu Cryote Cryogenic Technology Co ltd
Current assignee: Jiangsu Cryote Cryogenic Technology Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-04-10
Anticipated expiration: 2029-08-15

Abstract

The utility model relates to the field of hydrogen fuel cell automobile gas supply application, in particular to a hook type sealing interlocking mechanism suitable for a high-pressure hydrogen cylinder mouth valve for an automobile, which comprises a valve body, a static iron core, a movable iron core, a valve core, a copper sleeve and a coil assembly; the coil assembly is sleeved on the copper sleeve and arranged in the valve body, and provides magnetic force for the movable iron core arranged in the copper sleeve after being electrified, so that the movable iron core obtains the magnetic force close to the static iron core; wherein, the valve core is connected with the movable iron core through a hook structure. The utility model discloses in, through with the case with move the iron core and pass through the couple structural connection, reduced the assembly degree of difficulty of the two, only can guarantee the axiality of the two through the size precision of control couple department, reduced the original two technology degree of difficulty in the course of working, be convenient for realize the volume production.

Description

Hook type sealing interlocking mechanism suitable for high-pressure hydrogen cylinder mouth valve for vehicle

Technical Field

The utility model relates to a hydrogen fuel cell car air feed application, concretely relates to sealed interlocking gear of couple formula suitable for automotive high pressure hydrogen gas bottleneck valve.

Background

The high-pressure hydrogen cylinder mouth valve for the vehicle is an important component of a hydrogen fuel cell vehicle gas supply system, the electromagnetic valve is a core component of the high-pressure hydrogen cylinder mouth valve for the vehicle, the valve core and the movable iron core of the electromagnetic valve of the existing product are connected by using pins, the problems of complex assembly and inconvenient disassembly exist, the manufacturing requirement on the coaxiality of parts of a sealing opening and closing system is high, and the mass production cannot be carried out.

In view of the above problems, the designer is based on the practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is engaged with the application of scholars to actively make research and innovation, so as to create a hook type sealing interlocking mechanism suitable for the vehicle high-pressure hydrogen cylinder mouth valve, and make the mechanism more practical.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hook formula seals interlocking gear suitable for automotive high pressure hydrogen bottleneck valve aims at solving the problem among the background art.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a hook type sealing interlocking mechanism suitable for a high-pressure hydrogen cylinder mouth valve for a vehicle comprises a valve body, a static iron core, a movable iron core, a valve core, a copper sleeve and a coil assembly;

the coil assembly is sleeved on the copper sleeve and arranged in the valve body, the coil assembly provides magnetic force for the movable iron core arranged in the copper sleeve after being electrified so as to obtain the magnetic force close to the static iron core, and a spring is arranged between the static iron core and the movable iron core, so that the separation state of the static iron core and the movable iron core is kept in a power-off state, and the movable iron core drives the valve core to close the bottleneck valve;

the valve core is connected with the movable iron core through a hook structure.

Furthermore, the hook structure comprises an installation rod located at the end part of the movable iron core and a boss located at the end part of the installation rod, the end part of the valve core is provided with an installation cavity perpendicular to the axial opening of the copper sleeve, the installation cavity faces the side wall of the movable iron core and is provided with a U-shaped notch for the boss to enter the installation cavity, and the diameter of the installation rod is equal to the width of the U-shaped notch.

The hydrogen cylinder is characterized in that a cavity is arranged between the valve core and the valve body, and the cavity is provided with an air inlet end communicated with the inside of the hydrogen cylinder and an air outlet end which is opened and closed by driving the valve core to move by the movable iron core.

Furthermore, a pilot hole is arranged on the valve core, and before the movable iron core drives the valve core to completely open the air outlet end, air is allowed to flow out through the pilot hole to form a reflection flow for assisting the valve core to open.

Furthermore, the valve core is positioned in the installation cavity, a curved surface structure is arranged on the surface of the valve core opposite to the boss, and one port of the pilot hole is arranged at the protruding position of the curved surface structure relative to the movable iron core.

Furthermore, a sealing gasket is embedded on the end face of the boss opposite to one end of the pilot hole.

Further, the valve core comprises a large valve core and a small valve core which are coaxially arranged, and a sealing structure is arranged at the joint of the large valve core and the small valve core.

Further, the pilot hole comprises at least two sections, and the aperture of each section is gradually enlarged or increased in a step shape in the direction of leading out from the hydrogen cylinder.

Through the technical scheme of the utility model, can realize following technological effect:

through with case and movable iron core through couple structural connection, reduced the assembly degree of difficulty of the two, only can guarantee the axiality of the two through the size precision of control couple department, reduced the original two technology degree of difficulty in the course of working, be convenient for realize the volume production to the cost of product has effectively been reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a hook type sealing and interlocking mechanism suitable for a high-pressure hydrogen cylinder mouth valve for a vehicle;

FIG. 2 is a partial schematic view of the connection between the plunger and the valve core;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

reference numerals: the valve comprises a valve body 1, a static iron core 2, a movable iron core 3, a mounting rod 31, a boss 32, a sealing gasket 33, a valve core 4, a mounting cavity 41, a U-shaped notch 42, a pilot hole 43, a large valve core 44, a small valve core 45, a copper sleeve 5, a coil assembly 6, a spring 7 and a cavity 8.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are the directions or positional relationships indicated on the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.

The embodiments of the present invention are written in a progressive manner.

As shown in fig. 1, a hook type sealing interlocking mechanism suitable for a high-pressure hydrogen cylinder mouth valve for a vehicle comprises a valve body 1, a static iron core 2, a movable iron core 3, a valve core 4, a copper sleeve 5 and a coil assembly 6; the coil assembly 6 is sleeved on the copper sleeve 5 and arranged in the valve body 1, the coil assembly 6 provides magnetic force for the movable iron core 3 arranged in the copper sleeve 5 after being electrified so as to obtain the magnetic force close to the static iron core 2, and a spring 7 is arranged between the static iron core 2 and the movable iron core 3, so that the separation state of the static iron core 2 and the movable iron core 3 is kept in a power-off state, and the movable iron core 3 drives the valve core 4 to close the bottleneck valve; wherein, the valve core 4 is connected with the movable iron core 3 through a hook structure.

Under the condition of normal use, the coil assembly 6 is powered off, the static iron core 2 and the movable iron core 3 are kept to be separated under the elastic force of the spring 7, and at the moment, the movable iron core 3 drives the valve core 4 to reach a closing position; and under the condition that the passageway is opened to needs, supply power to coil pack 6 through control system, under the effect of magnetic force, move iron core 3 and drive case 4 and remove, specifically move to quiet iron core 2 and move the position department that iron core 3 laminated to make case 4 reach the open position of passageway, can realize the effectual opening of passageway and close through above-mentioned mode, realize the normal use of hydrogen. In the above embodiment, through with case 4 with move iron core 3 through couple structural connection, reduced the assembly degree of difficulty of the two, only can guarantee the axiality of the two through the size precision of control couple department, reduced the original two technology degree of difficulty in the course of working, be convenient for realize the volume production to the cost of product has effectively been reduced.

As shown in fig. 2 and 3, the hook structure includes a mounting rod 31 located at an end of the movable iron core 3, and a boss 32 located at an end of the mounting rod 31, an end of the valve core 4 is provided with a mounting cavity 41 perpendicular to an axial opening of the copper sleeve 5, a U-shaped notch 42 is provided on a side wall of the mounting cavity 41 facing the movable iron core 3 for the boss 32 to enter the mounting cavity 41, and a diameter of the mounting rod 31 is equal to a width of the U-shaped notch 42. In the preferred scheme, a specific hook form is provided, the movable iron core 3 and the valve core 4 are conveniently connected, the valve core 4 is only required to directly coat the boss 32 partially, and the accurate positioning of the movable iron core and the valve core in the axial direction can be effectively ensured through the limitation of the mounting cavity 41.

Wherein, a cavity 8 is arranged between the valve core 4 and the valve body 1, the cavity 8 is provided with an air inlet end communicated with the inside of the hydrogen cylinder and an air outlet end which is opened and closed by driving the valve core 4 to move by the movable iron core 3. In this preferred scheme, the restriction has been carried out to the gas flow channel of bottleneck valve, through setting up the inlet end in cavity 8 between case 4 and valve body 1, makes the installation department structure of moving iron core 3 and quiet iron core 2 more concise on the one hand, and on the other hand makes the circulation space of hydrogen diminish to make the circulation route of hydrogen shorten, increase sensitivity.

Preferably, the valve core 4 is provided with a pilot hole 43, and before the movable iron core 3 drives the valve core 4 to completely open the gas outlet end, the gas is allowed to flow out through the pilot hole 43, so as to form a reflection flow for opening the power-assisted valve core 4. The pilot hole 43 is arranged, so that the working sensitivity of the bottleneck valve can be improved, the difficulty of opening the valve core 4 is reduced by the aid of the reflected flow, the current for opening the bottleneck valve is reduced, and the working reliability of the bottleneck valve is ensured. The pilot hole 43 includes at least two sections, and the diameter of each section gradually increases in the direction from the hydrogen cylinder to the outside, or increases in a step shape, and both of the above forms can achieve the purpose of pressurizing when the gas flows to the pilot hole 43.

In order to ensure the sealing effect of the whole bottleneck valve before the valve core 4 is opened, the valve core 4 is positioned in the mounting cavity 41, the surface opposite to the boss 32 is provided with a curved surface structure, and one port of the pilot hole 43 is arranged at the protruding position of the curved surface structure relative to the movable iron core 3, so that more concentrated extrusion sealing can be ensured. Wherein, the end face of the boss 32 opposite to one end of the pilot hole 43 is embedded with a sealing gasket 33, so as to optimize the sealing effect.

Preferably, the valve core 4 includes a large valve core 44 and a small valve core 45 which are coaxially arranged, and a sealing structure is arranged at the joint of the large valve core and the small valve core, so that the processing difficulty of the whole valve core 4 is effectively reduced through a split structural design, wherein the sealing structure can adopt a sealing ring structure and the like arranged on the radial step surface of the joint of the large valve core and the small valve core, and the sealing structure is convenient to install and has a good sealing effect.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A hook type sealing interlocking mechanism suitable for a vehicle high-pressure hydrogen cylinder mouth valve is characterized by comprising a valve body (1), a static iron core (2), a movable iron core (3), a valve core (4), a copper sleeve (5) and a coil assembly (6);

the coil assembly (6) is sleeved on the copper sleeve (5) and arranged in the valve body (1), after the coil assembly (6) is electrified, magnetic force is provided for the movable iron core (3) arranged in the copper sleeve (5) to enable the movable iron core to obtain magnetic force close to the static iron core (2), a spring (7) is arranged between the static iron core (2) and the movable iron core (3), so that the separation state of the static iron core (2) and the movable iron core (3) is kept in a power-off state, and the movable iron core (3) drives the valve core (4) to close the bottleneck valve;

the valve core (4) is connected with the movable iron core (3) through a hook structure.

2. The hook type sealing and interlocking mechanism suitable for the vehicle high-pressure hydrogen cylinder mouth valve is characterized in that the hook structure comprises a mounting rod (31) positioned at the end part of the movable iron core (3) and a boss (32) positioned at the end part of the mounting rod (31), the end part of the valve core (4) is provided with a mounting cavity (41) perpendicular to the axial opening of the copper sleeve (5), the side wall of the mounting cavity (41) facing the movable iron core (3) is provided with a U-shaped notch (42) for the boss (32) to enter the mounting cavity (41), and the diameter of the mounting rod (31) is equal to the width of the U-shaped notch (42).

3. The hook type sealing and interlocking mechanism suitable for the high-pressure hydrogen cylinder mouth valve for the vehicle as claimed in claim 2, wherein a cavity (8) is arranged between the valve core (4) and the valve body (1), the cavity (8) is provided with an air inlet end communicated with the inside of the hydrogen cylinder and an air outlet end which is opened and closed by driving the valve core (4) to move by means of the movable iron core (3).

4. The hook type sealing and interlocking mechanism suitable for the vehicle high-pressure hydrogen cylinder mouth valve is characterized in that a pilot hole (43) is arranged on the valve core (4), and before the movable iron core (3) drives the valve core (4) to completely open the gas outlet end, gas is allowed to flow out through the pilot hole (43), so that a reflecting flow assisting the opening of the valve core (4) is formed.

5. The hook type seal interlock mechanism for a vehicle high-pressure hydrogen cylinder mouth valve according to claim 4, characterized in that the valve core (4) is provided with a curved surface structure on a face opposite to the boss (32) in the mounting cavity (41), and one port of the pilot hole (43) is provided at a protruding position of the curved surface structure with respect to the movable iron core (3).

6. The hook-type seal-interlocking mechanism for a high-pressure hydrogen cylinder mouth valve for vehicles as claimed in claim 5, wherein a seal gasket (33) is fitted on the end surface of the boss (32) opposite to the end of the pilot hole (43).

7. The hook type seal interlocking mechanism suitable for the high-pressure hydrogen cylinder mouth valve for the vehicle as claimed in claim 1, wherein the valve core (4) comprises a large valve core (44) and a small valve core (45) which are coaxially arranged, and a sealing structure is arranged at the joint of the large valve core and the small valve core.

8. The hook-type seal interlock mechanism for a vehicle high-pressure hydrogen cylinder mouth valve according to claim 4, wherein the pilot hole (43) comprises at least two sections, and the diameter of each section gradually increases or increases in a step shape in a direction leading out from the hydrogen cylinder.