CN219975473U

CN219975473U - Vehicle-mounted hydrogen high-pressure relief valve assembly

Info

Publication number: CN219975473U
Application number: CN202321110798.6U
Authority: CN
Inventors: 马骏驰; 明明; 刘华玲; 沙明峰; 邱捷; 申铁柱
Original assignee: Changzhou Hengli Pneumatic Technology Co ltd
Current assignee: Changzhou Hengli Pneumatic Technology Co ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-11-07
Anticipated expiration: 2033-05-09

Abstract

The utility model relates to the technical field of pressure reducing valves, in particular to a vehicle-mounted hydrogen high-pressure reducing valve assembly, which comprises: the valve comprises a valve body, a filtering assembly, a control assembly and a decompression assembly; the valve body is provided with an air inlet and an air outlet, the air inlet is communicated with the filter assembly, a pressure regulating channel is formed between the filter assembly and the pressure reducing assembly, and the control assembly is arranged on the pressure regulating channel; the pressure reducing assembly comprises an upper cover part, a diaphragm part and a lower sleeve part, wherein the upper cover part comprises a cover body, a pressure regulating spring and a pressure regulating screw, the cover body is locked with the valve body, the cover body is arranged in a hollow manner to form a containing cavity, the pressure regulating spring is arranged in the containing cavity, the pressure regulating screw is connected with the cover body in a rotating manner, and one end of the pressure regulating screw stretches into the cover body; the diaphragm part is arranged between the valve body and the upper cover part; the lower sleeve part is communicated with the pressure regulating channel and comprises a valve sleeve, a valve core and a core sleeve, the valve core is arranged on the valve body through the valve sleeve, one end of the valve core extends into the diaphragm part, and the core sleeve is sleeved on the outer axial surface of the valve core; simple structure and small volume, can reach the decompression effect just once the decompression process.

Description

Vehicle-mounted hydrogen high-pressure relief valve assembly

Technical Field

The utility model relates to the technical field of pressure reducing valves, in particular to a vehicle-mounted hydrogen high-pressure reducing valve assembly.

Background

The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure and automatically keeps the outlet pressure stable by means of the energy of a medium, and from the viewpoint of fluid mechanics, the pressure reducing valve is a throttling element with changeable local valve body resistance, namely, the flow speed and the kinetic energy of fluid are changed by changing the throttling area, so that different pressure losses are caused, and the aim of reducing pressure is achieved; and then, by means of the adjustment of the control and adjustment system, the fluctuation of the valve back pressure is balanced with the spring force, so that the valve back pressure is kept constant within a certain error range.

When the pressure reducing valve is used, the valve bodies are independent from the pressure reducing valve, more connectors and more pipes are needed to be added between the valve bodies and management, and the device is complex and has larger volume; in the related art, chinese patent publication No. CN101672388A discloses a high-pressure relief valve group, and the pilot valve and two safety valves are arranged on the main relief valve, so that the high-pressure relief valve group has compact structure and small volume, and is convenient for safety maintenance; however, in the use process of the high-pressure reducing valve group, the inlet pressure is reduced by the reducing valve group only once, the outlet pressure is reduced to 4Mpa, the reducing effect is difficult to be expected, and the pressure can be reduced to 0.5-1.0Mpa by adding an additional reducing process, so that the volume and the complexity of the system are increased.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the vehicle-mounted hydrogen high-pressure relief valve assembly is simple in structure and small in volume, and the relief effect can be achieved through one-time relief process.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a vehicle-mounted hydrogen high pressure relief valve assembly comprising: the valve body is provided with a filtering component, a control component and a decompression component which are arranged in the valve body; the valve body is provided with an air inlet and an air outlet, the air inlet is communicated with the filtering component, a pressure regulating channel is formed between the filtering component and the pressure reducing component, and the control component is arranged on the pressure regulating channel and used for controlling the opening and closing of the pressure regulating channel;

the pressure reducing assembly comprises an upper cover part, a membrane part and a lower sleeve part,

the upper cover part comprises a cover body, a pressure regulating spring and a pressure regulating screw, wherein the cover body is locked with the valve body, the cover body is arranged in a hollow mode to form a containing cavity, the pressure regulating spring is arranged in the containing cavity, the pressure regulating screw is connected with the cover body in a rotating mode, and one end of the pressure regulating screw extends into the cover body and is used for controlling the compression amount of the pressure regulating spring;

the diaphragm part is arranged between the valve body and the upper cover part and is used for sealing the upper cover part and the air outlet;

the lower sleeve part is communicated with the pressure regulating channel and comprises a valve sleeve, a valve core and a core sleeve, the valve core is installed on the valve body through the valve sleeve, one end of the valve core extends into the diaphragm part, and the core sleeve is sleeved on the outer axial surface of the valve core to control the opening and closing of an air tap between the valve core and the valve body.

Further, be provided with spring holder and spring housing in holding the chamber, the spring housing sets up the one end at diaphragm portion place, the one end restriction of pressure regulating spring is in the spring housing with between the diaphragm portion, the spring holder sets up the one end at pressure regulating screw place, and in the middle part position formation confession pressure regulating screw tip butt's U type structure, U type structure deviates from one side of pressure regulating screw stretches into pressure regulating spring's tip, make the pressure regulating spring butt is in on the edge of spring holder.

Further, the diaphragm portion includes the lamellar body, goes up seat, lower seat, lamellar seat one end orientation the case with the air cock setting between the valve body, the other end stretches into hold the chamber in, lower seat the lamellar body with go up the seat in proper order overlaps to establish on the lamellar seat, just the one end butt of pressure regulating spring is in go up the seat and is kept away from on one side of lamellar body.

Further, the slice seat is provided with a through adjusting cavity, the adjusting cavity faces to one end of the upper sleeve part, a nut is arranged on the adjusting cavity, the nut is used for plugging the adjusting cavity, an adjusting rod is arranged in the adjusting cavity, the adjusting rod is sleeved on the end part of the valve core extending into the adjusting cavity, and one end of the adjusting rod is in butt joint with the nut.

Further, the axial side surface of the middle part of the valve core extends outwards to form a boss, one end of the core sleeve contracts and is abutted to the air tap between the valve core and the valve body, and the other end of the core sleeve abuts to the boss.

Further, the lower sleeve part further comprises a first balance spring, the first balance spring is sleeved on the valve core, one end of the first balance spring is abutted to the valve sleeve, and the other end of the first balance spring is abutted to one side, away from the core sleeve, of the boss.

Further, the valve core is connected with the valve sleeve through a blocking sleeve, the boss protrudes towards one end of the blocking sleeve to form a step surface, a second balance spring is sleeved on the outer shaft surface of the blocking sleeve, two ends of the second balance spring are respectively abutted to the blocking sleeve and the step surface, and the line diameter of the second balance spring is smaller than that of the first balance spring.

Further, the filter assembly includes an intake passage, the intake port in communication with the intake passage, and a filter element confined in the intake passage.

Further, the control assembly comprises a static iron core, a movable iron core, a piston and a magnetism isolating pipe, wherein the magnetism isolating pipe is arranged in a hollow mode, the static iron core is arranged at one end of the magnetism isolating pipe, a coil is arranged outside the static iron core, the movable iron core is arranged in the magnetism isolating pipe, one end, deviating from the static iron core, of the static iron core is connected with the piston, and the movable iron core moves along the axial direction of the magnetism isolating pipe.

Further, the valve body is further provided with a circulation port, and the circulation port is communicated with a circulation water channel in the valve body and is used for continuously heating the valve body.

The beneficial effects of the utility model are as follows: the utility model provides a vehicle-mounted hydrogen high-pressure relief valve assembly, which can realize the functions of various valve bodies such as high-pressure relief, filtration, opening and closing, pressure relief and the like, avoid the arrangement of a plurality of connecting pieces, has a simple structure and small volume, can ensure that high-pressure gas can reach the use pressure of 0.2-1.0Mpa through one-time pressure relief of a lower sleeve part under the pressure regulating effect of an upper cover part, and can effectively ensure the sealing effect in the pressure relief process and ensure the stable conversion of the air pressure in the working process of the high-pressure relief valve assembly.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

FIG. 1 is a schematic structural diagram of a vehicle-mounted hydrogen high-pressure relief valve assembly according to an embodiment of the present utility model;

FIG. 2 is a front view of a vehicle-mounted hydrogen high pressure relief valve assembly according to an embodiment of the present utility model;

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

FIG. 4 is a cross-sectional view at B-B in FIG. 2;

FIG. 5 is a cross-sectional view taken at C-C of FIG. 2;

FIG. 6 is a top view of a vehicle-mounted hydrogen high pressure relief valve assembly in accordance with an embodiment of the present utility model;

FIG. 7 is a cross-sectional view taken at D-D of FIG. 6;

FIG. 8 is a schematic view illustrating the operation of the upper cover part according to the embodiment of the present utility model;

FIG. 9 is a schematic diagram of a valve core and a core sleeve according to an embodiment of the present utility model;

fig. 10 is a schematic structural diagram of a control component according to an embodiment of the present utility model.

Reference numerals: 01. a valve body; 01a, an air inlet; 01b, an air outlet; 01c, a circulation port; 01d, pressure regulating channel; 10. a filter assembly; 11. an air intake passage; 12. a filter element; 20. a control assembly; 21. a stationary core; 22. a movable iron core; 23. a piston; 24. a magnetism isolating pipe; 25. a coil; 30. a pressure relief assembly; 31. an upper cover part; 311. a cover body; 311a, a receiving cavity; 312. a pressure regulating spring; 313. a pressure regulating screw; 314. a spring seat; 315. a spring sleeve; 32. a diaphragm portion; 321. a sheet body; 322. an upper seat; 323. a lower seat; 324. a sheet seat; 324a, a conditioning chamber; 325. a screw cap; 326. an adjusting rod; 33. a lower sleeve portion; 331. a valve sleeve; 332. a valve core; 332a, bosses; 332b, step surface; 333. a core sleeve; 334. a first balance spring; 335. a blocking sleeve; 336. and a second balance spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all 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 belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The vehicle-mounted hydrogen high-pressure reducing valve assembly as shown in fig. 1 to 10 comprises: a valve body 01, a filter assembly 10, a control assembly 20 and a pressure relief assembly 30 disposed within the valve body 01; the valve body 01 is provided with an air inlet 01a and an air outlet 01b, the air inlet 01a is communicated with the filter assembly 10, a pressure regulating channel 01d is formed between the filter assembly 10 and the pressure reducing assembly 30, and the control assembly 20 is arranged on the pressure regulating channel 01d and used for controlling the opening and closing of the pressure regulating channel 01 d;

the pressure relief assembly 30 includes an upper cover portion 31, a diaphragm portion 32 and a lower sleeve portion 33,

the upper cover part 31 comprises a cover body 311, a pressure regulating spring 312 and a pressure regulating screw 313, wherein the cover body 311 is locked with the valve body 01, the cover body 311 is hollow to form a containing cavity 311a, the pressure regulating spring 312 is arranged in the containing cavity 311a, the pressure regulating screw 313 is rotationally connected with the cover body 311, and one end of the pressure regulating screw 313 extends into the cover body 311 and is used for controlling the compression amount of the pressure regulating spring 312;

the diaphragm portion 32 is provided between the valve body 01 and the upper cover portion 31, and seals the upper cover portion 31 and the air outlet 01 b;

the lower sleeve part 33 is communicated with the pressure regulating channel 01d and comprises a valve sleeve 331, a valve core 332 and a core sleeve 333, wherein the valve core 332 is arranged on the valve body 01 through the valve sleeve 331, one end of the valve core 332 extends into the diaphragm part 32, the core sleeve 333 is sleeved on the outer axial surface of the valve core 332, and the opening and closing of an air tap between the valve core 332 and the valve body 01 are controlled.

The utility model provides a vehicle-mounted hydrogen high-pressure relief valve assembly, which can realize the functions of various valve bodies 01 such as high-pressure relief, filtration, opening and closing, pressure relief and the like, avoid the arrangement of a plurality of connecting pieces, has a simple structure and small volume, and can ensure that high-pressure gas can reach the use pressure of 0.2-1.0Mpa through one-time pressure relief of a lower sleeve part 33 under the pressure regulating action of an upper cover part 31, and meanwhile, a diaphragm part 32 can effectively ensure the sealing action in the pressure relief process and ensure the stable conversion of the air pressure in the working process of the high-pressure relief valve assembly.

It should be noted that, a working chamber for reducing pressure of high pressure gas is formed between the air tap between the valve core 332 and the valve body 01 and between the diaphragm portion 32, the working chamber is simultaneously communicated with the air outlet 01b on the valve body 01, and the low pressure gas formed by reducing pressure in the working chamber is directly discharged through the air outlet 01 b; in addition, a pressure relief opening communicated with the working cavity is formed in the valve body 01, and when the pressure of gas entering the working cavity is larger than the set pressure, an additional safety relief valve is externally connected to the position of the pressure relief opening on the valve body 01 to release and relieve the pressure of the gas in the working cavity, so that the pressure is reduced to the set pressure; wherein, valve pocket 331 tip can be provided with the pressure measurement mouth, can be to the interior atmospheric pressure real time monitoring of valve body 01 through external pressure sensor in pressure measurement mouth department.

On the basis of the above embodiment, the accommodating cavity 311a is provided with the spring seat 314 and the spring housing 315, the spring housing 315 is disposed at one end of the diaphragm portion 32, one end of the pressure regulating spring 312 is limited between the spring housing 315 and the diaphragm portion 32, the spring seat 314 is disposed at one end of the pressure regulating screw 313, and a U-shaped structure for abutting the end of the pressure regulating screw 313 is formed at the middle position, and one side of the U-shaped structure, which is away from the pressure regulating screw 313, extends into the end of the pressure regulating spring 312, so that the pressure regulating spring 312 abuts on the edge of the spring seat 314; the pressure regulating screw 313 is rotated to enable the pressure regulating screw 313 to apply pressure to the U-shaped structure, so that the pressure regulating spring 312 is compressed, the spring sleeve 315 limits the position of the pressure regulating spring 312 in the compression process, under the action of the pressure regulating spring 312, the end part can push the diaphragm part 32 to press downwards, the valve core 332 moves, and an air tap between the valve core 332 and the valve body 01 is opened.

On the basis of the above embodiment, the diaphragm portion 32 includes the sheet 321, the upper seat 322, the lower seat 323, and the sheet seat 324, one end of the sheet seat 324 faces the air tap between the valve core 332 and the valve body 01, the other end extends into the accommodating cavity 311a, the lower seat 323, the sheet 321 and the upper seat 322 are sequentially sleeved on the sheet seat 324, one end of the pressure regulating spring 312 abuts against one side of the upper seat 322, which is away from the sheet 321, the sheet 321 is located between the upper seat 322 and the lower seat 323, and the edge position is between the cover 311 and the valve body 01, so as to form a sealing effect, and effectively ensure the sealing effect when the sheet seat 324 drives the valve core 332 to move.

On the basis of the embodiment, the blade seat 324 is provided with the through adjusting cavity 324a, the end of the adjusting cavity 324a, which faces the upper sleeve part, is provided with the screw cap 325, the screw cap 325 is used for plugging the adjusting cavity 324a, the adjusting cavity 324a is internally provided with the adjusting rod 326, the adjusting rod 326 is sleeved on the end part of the valve core 332, which extends into the adjusting cavity 324a, one end of the adjusting rod 326 is abutted with the screw cap 325, the adjusting rod 326 has guiding and fixing functions on the valve core 332, and the shaking occurs between the end part of the valve core 332, which extends into the adjusting cavity 324a, and the blade seat 324, so that the stability of the opening and closing functions of the air tap between the valve core 332 and the valve body 01 is ensured.

On the basis of the above embodiment, the axial side surface of the middle position of the valve core 332 extends outwards to form a boss 332a, one end of the core sleeve 333 contracts and is abutted on the air tap between the valve core 332 and the valve body 01, and the other end of the core sleeve abuts on the boss 332a, so that the sleeve joint action between the core sleeve 333 and the valve core 332 is ensured, and the core sleeve 333 and the valve core 332 are prevented from moving relatively.

On the basis of the above embodiment, the lower sleeve portion 33 further includes the first balance spring 334, the first balance spring 334 is sleeved on the valve core 332, one end of the first balance spring is abutted on the valve sleeve 331, and the other end of the first balance spring is abutted on one side of the boss 332a away from the core sleeve 333, so that the valve core 332 is ensured to drive the core sleeve 333 to smoothly reset and ensure the abutting action, and the tightness of the valve tap between the core sleeve 333 and the valve core 332 and the valve body 01 is ensured.

On the basis of the above embodiment, the valve core 332 is connected with the valve sleeve 331 through the retaining sleeve 335, the boss 332a protrudes towards one end of the retaining sleeve 335 to form the step surface 332b, the second balance spring 336 is sleeved on the outer axial surface of the retaining sleeve 335, two end parts of the second balance spring 336 are respectively abutted to the retaining sleeve 335 and the step surface 332b, and the wire diameter of the second balance spring 336 is smaller than that of the first balance spring 334, so that the stability of assembly between the retaining sleeve 335 and the valve sleeve 331 and between the valve core 332 is effectively ensured, meanwhile, the elastic force is increased, and the sealing effect of the valve core 333 and the air tap between the valve core 332 and the valve body 01 is further ensured.

On the basis of the above embodiment, the filter assembly 10 includes the air intake passage 11 and the filter element 12, the air intake 01a communicates with the air intake passage 11, and the filter element 12 is restricted in the air intake passage 11, so that the high-pressure gas entering the valve body 01 is first depressurized through the purifying action of the filter element 12, thereby ensuring the service life of the depressurization valve assembly.

On the basis of the above embodiment, the control assembly 20 includes the stationary core 21, the movable core 22, the piston 23 and the magnetism isolating tube 24, the magnetism isolating tube 24 is arranged in a hollow manner, the stationary core 21 is arranged at one end of the magnetism isolating tube 24, the coil 25 is arranged outside, the movable core 22 is arranged in the magnetism isolating tube 24, and one end, which is away from the stationary core 21, is connected with the piston 23 and moves along the axial direction of the magnetism isolating tube 24; the movable iron core 22 and the static iron core 21 have magnetism through the energizing of the control coil 25, and have electromagnetic force which attracts each other, so that the movable iron core 22 drives the piston 23 to move towards one side of the static iron core 21, and the pressure regulating channel 01d is controlled to be opened, so that high-pressure gas can enter the pressure regulating channel 01 d.

On the basis of the above embodiment, the temperature of the valve body 01 is reduced during the use process, which is unfavorable for the formation of the sealing effect, and the valve body 01 is further provided with the circulation port 01c, the circulation port 01c is communicated with the circulation water path in the valve body 01, hot water enters the valve body 01 through the circulation water path, and the hot water is controlled to continuously heat the valve body 01, so that the temperature in the valve body 01 is kept in a proper range.

The working process of the vehicle-mounted hydrogen high-pressure reducing valve assembly is as follows: when the pressure is not regulated, high-pressure gas enters the air inlet channel 11 from the air inlet 01a, and enters the control assembly 20 through the purification effect of the filter element 12; at this time, the coil 25 is not energized, and gas cannot enter the pressure regulating passage 01d through the piston 23; when the coil 25 is electrified, the coil 25 generates electromagnetic force between the movable iron core 22 and the static iron core 21, the movable iron core 22 drives the piston 23 to move towards one side of the static iron core 21, the pressure regulating channel 01d is opened, and high-pressure gas can enter the lower sleeve part 33 along the pressure regulating channel 01 d; at this time, the pressure is not regulated, the first balance spring 334 and the second balance spring 336 push the valve core 332 to enable the valve core sleeve 333 and the air tap between the valve core 332 and the valve body 01 to form a sealing effect, and high-pressure gas cannot enter the working cavity through the valve core sleeve 333; when the valve is in a pressure regulating state, the pressure regulating screw 313 is rotated, the spring seat 314 is pushed to move downwards to compress the pressure regulating spring 312, the pressure regulating spring 312 simultaneously drives the diaphragm to move downwards, the valve core 332 is driven to move, the core sleeve 333 on the valve core 332 opens the air tap between the valve core 332 and the valve body 01, high-pressure air enters the working cavity, and under the action of the sheet 321, the sealing effect between the cover body 311 and the valve body 01 is realized, so that the air in the working cavity is prevented from entering the cover body 311; when the acting force of the high-pressure gas on the diaphragm part 32 and the elastic force of the pressure regulating spring 312 reach an equilibrium state, the core sleeve 333 is contacted with the air tap between the valve core 332 and the valve body 01 again to form a sealing effect, and the high-pressure gas does not enter the working cavity any more, so that the pressure is kept stable; when the pressure is released, the air pressure in the working cavity is reduced, the stress of the sheet 321 towards one side of the working cavity is reduced, the downward thrust of the pressure regulating spring 312 is larger than the thrust of the air pressure on the sheet 321, the valve core 332 moves downwards, the core sleeve 333 is separated from the air tap between the valve core 332 and the valve body 01 again, the high-pressure air enters the working cavity again to raise the air pressure, and the air tap between the valve core 332 and the valve body 01 is closed after the balance state is reached again.

It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A vehicle-mounted hydrogen high-pressure relief valve assembly, comprising: a valve body (01), a filter assembly (10), a control assembly (20) and a decompression assembly (30) which are arranged in the valve body (01); an air inlet (01 a) and an air outlet (01 b) are formed in the valve body (01), the air inlet (01 a) is communicated with the filter assembly (10), a pressure regulating channel (01 d) is formed between the filter assembly (10) and the pressure reducing assembly (30), and the control assembly (20) is arranged on the pressure regulating channel (01 d) and used for controlling the opening and closing of the pressure regulating channel (01 d);

the pressure reducing assembly (30) comprises an upper cover part (31), a membrane part (32) and a lower sleeve part (33),

the upper cover part (31) comprises a cover body (311), a pressure regulating spring (312) and a pressure regulating screw (313), wherein the cover body (311) is locked with the valve body (01), the cover body (311) is arranged in a hollow mode to form a containing cavity (311 a), the pressure regulating spring (312) is arranged in the containing cavity (311 a), the pressure regulating screw (313) is connected with the cover body (311) in a rotating mode, and one end of the pressure regulating screw extends into the cover body (311) to control the compression amount of the pressure regulating spring (312);

the diaphragm part (32) is arranged between the valve body (01) and the upper cover part (31) and seals the upper cover part (31) and the air outlet (01 b);

the lower sleeve part (33) is communicated with the pressure regulating channel (01 d), and comprises a valve sleeve (331), a valve core (332) and a core sleeve (333), wherein the valve core (332) is installed on the valve body (01) through the valve sleeve (331), one end of the valve core extends into the diaphragm part (32), and the core sleeve (333) is sleeved on the outer axial surface of the valve core (332) to control the opening and closing of an air tap between the valve core (332) and the valve body (01).

2. The vehicle-mounted hydrogen high-pressure relief valve assembly according to claim 1, characterized in that a spring seat (314) and a spring sleeve (315) are arranged in the accommodating cavity (311 a), the spring sleeve (315) is arranged at one end where the diaphragm part (32) is located, one end of the pressure regulating spring (312) is limited between the spring sleeve (315) and the diaphragm part (32), the spring seat (314) is arranged at one end where the pressure regulating screw (313) is located, a U-shaped structure for the end of the pressure regulating screw (313) to abut is formed at the middle position, and one side of the U-shaped structure, which is away from the pressure regulating screw (313), stretches into the end of the pressure regulating spring (312) so that the pressure regulating spring (312) abuts on the edge of the spring seat (314).

3. The vehicle-mounted hydrogen high-pressure reducing valve assembly according to claim 1, wherein the membrane portion (32) comprises a sheet body (321), an upper seat (322), a lower seat (323) and a sheet seat (324), one end of the sheet seat (324) faces to an air tap between the valve core (332) and the valve body (01), the other end of the sheet seat extends into the accommodating cavity (311 a), the lower seat (323), the sheet body (321) and the upper seat (322) are sequentially sleeved on the sheet seat (324), and one end of the pressure regulating spring (312) is abutted to one side, deviating from the sheet body (321), of the upper seat (322).

4. The vehicle-mounted hydrogen high-pressure reducing valve assembly according to claim 3, wherein the sheet seat (324) is provided with a through adjusting cavity (324 a), a screw cap (325) is arranged at one end of the adjusting cavity (324 a) facing the upper cover part (31), the screw cap (325) is used for blocking the adjusting cavity (324 a), an adjusting rod (326) is arranged in the adjusting cavity (324 a), the adjusting rod (326) is sleeved on the end part of the valve core (332) extending into the adjusting cavity (324 a), and one end of the adjusting rod is in butt joint with the screw cap (325).

5. The vehicle-mounted hydrogen high-pressure reducing valve assembly according to claim 1, wherein a boss (332 a) is formed by extending outwards from the axial side surface of the middle part of the valve core (332), one end of the core sleeve (333) is contracted and is abutted against an air tap between the valve core (332) and the valve body (01), and the other end of the core sleeve is abutted against the boss (332 a).

6. The vehicle-mounted hydrogen high-pressure relief valve assembly according to claim 5, characterized in that said lower sleeve portion (33) further comprises a first balance spring (334), said first balance spring (334) is sleeved on said valve core (332), one end is abutted on said valve sleeve (331), and the other end is abutted on a side of said boss (332 a) facing away from said core sleeve (333).

7. The vehicle-mounted hydrogen high-pressure reducing valve assembly according to claim 6, wherein the valve core (332) is connected with the valve sleeve (331) through a blocking sleeve (335), the boss (332 a) protrudes towards one end of the blocking sleeve (335) to form a step surface (332 b), a second balance spring (336) is sleeved on the outer axial surface of the blocking sleeve (335), two ends of the second balance spring (336) are respectively abutted to the blocking sleeve (335) and the step surface (332 b), and the line diameter of the second balance spring (336) is smaller than that of the first balance spring (334).

8. The vehicle-mounted hydrogen high-pressure relief valve assembly according to claim 1, characterized in that said filtering component (10) comprises an air intake channel (11) and a filter element (12), said air intake (01 a) being in communication with said air intake channel (11), said filter element (12) being constrained in said air intake channel (11).

9. The vehicle-mounted hydrogen high-pressure relief valve assembly according to claim 1, wherein the control component (20) comprises a static iron core (21), a movable iron core (22), a piston (23) and a magnetism isolating pipe (24), the magnetism isolating pipe (24) is arranged in a hollow mode, the static iron core (21) is arranged at one end of the magnetism isolating pipe (24), a coil (25) is arranged outside the static iron core, the movable iron core (22) is arranged in the magnetism isolating pipe (24), and one end, deviating from the static iron core (21), is connected with the piston (23) and moves along the axial direction of the magnetism isolating pipe (24).

10. The vehicle-mounted hydrogen high-pressure reducing valve assembly according to claim 1, wherein the valve body (01) is further provided with a circulation port (01 c), and the circulation port (01 c) is communicated with a circulation waterway in the valve body (01) and is used for continuously heating the valve body (01).