CN114542969B - Solenoid valve of high-pressure bottle valve and high-pressure bottle valve - Google Patents

Solenoid valve of high-pressure bottle valve and high-pressure bottle valve Download PDF

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Publication number
CN114542969B
CN114542969B CN202011349503.1A CN202011349503A CN114542969B CN 114542969 B CN114542969 B CN 114542969B CN 202011349503 A CN202011349503 A CN 202011349503A CN 114542969 B CN114542969 B CN 114542969B
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China
Prior art keywords
valve
sealing
armature
air port
movable cavity
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CN202011349503.1A
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Chinese (zh)
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CN114542969A (en
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请求不公布姓名
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Weishi Energy Technology Co Ltd
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Weishi Energy Technology Co Ltd
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Priority to CN202011349503.1A priority Critical patent/CN114542969B/en
Publication of CN114542969A publication Critical patent/CN114542969A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/029—Electromagnetically actuated valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The application discloses a solenoid valve of a high-pressure bottle valve and the high-pressure bottle valve, the solenoid valve comprises: the valve shell is provided with a movable cavity extending along the axial direction, the end part of the valve shell is provided with a first air port communicated with the movable cavity, and the peripheral wall of the valve shell is provided with a second air port communicated with the movable cavity; the sealing valve is movably arranged in the movable cavity and is used for selectively communicating the first air port and the second air port, and the sealing valve is provided with a flow passage communicated with the first air port; the elastic piece, the armature and the sealing valve are sequentially arranged in the movable cavity, the armature is suitable for closing the flow passage under the acting force of the elastic piece, and a driving gap communicated with the second air port is formed between the end face of one end of the sealing valve, which is away from the armature, and the first end face of the movable cavity; and the electromagnetic driving piece is used for driving the armature to move in a direction away from the sealing valve. The electromagnetic valve is beneficial to reducing the structural size of the high-pressure bottle valve, can realize the functions of unidirectional conduction and automatic switching, and has stronger functionality.

Description

Solenoid valve of high-pressure bottle valve and high-pressure bottle valve
Technical Field
The application relates to the technical field of fluid storage manufacturing, in particular to an electromagnetic valve of a high-pressure bottle valve and the high-pressure bottle valve with the electromagnetic valve.
Background
At present, the most commonly used vehicle hydrogen storage mode at home and abroad and relatively mature technical development is high-pressure gaseous hydrogen storage, and the safe and effective use of hydrogen in a high-pressure hydrogen storage cylinder is not separated from a bottle opening combined valve (called a bottle valve for short), and the performance of the hydrogen storage valve is directly related to whether a fuel cell can normally work or not and the safe use efficiency of a hydrogen supply system. The bottle valve is integrated with a temperature sensor, an emergency relief valve, a manual stop valve, an electromagnetic valve, a TPRD, an overflow valve, a filter and other components, so that multiple functions can be realized. The performance, the power consumption and the service life of the electromagnetic valve directly influence whether the hydrogen can be continuously and stably provided for the fuel cell system in time or not, so that the normal operation of the vehicle is ensured. In the related art, the electromagnetic valve is arranged outside the bottle valve, so that the whole volume of the bottle valve is larger, the occupied installation space is larger, the functionality of the electromagnetic valve is single, and an improvement space exists.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present application is to provide a solenoid valve for a high-pressure cylinder valve, which has a smaller overall structure size, occupies a smaller installation space, consumes lower power, and can realize unidirectional conduction and automatic switching.
The electromagnetic valve of the high-pressure bottle valve according to the embodiment of the application comprises: the valve housing is provided with a movable cavity extending along the axial direction, a first air port communicated with the movable cavity is arranged at the end part of the valve housing, and a second air port communicated with the movable cavity is arranged on the peripheral wall of the valve housing; a sealing shutter movably installed in the movable chamber and used for selectively communicating the first air port and the second air port, the sealing shutter having a through-flow passage communicating with the first air port; the armature and the elastic piece are sequentially arranged in the movable cavity, the armature is suitable for closing the flow passage under the action of the elastic piece, and a driving gap communicated with the second air port is formed between the end face of one end of the sealing valve, which is away from the armature, and the first end face of the movable cavity; and the electromagnetic driving piece is used for driving the armature to move in a direction away from the sealing valve.
According to the electromagnetic valve of the high-pressure cylinder valve, through the matching use of the electromagnetic driving piece, the sealing valve, the armature, the elastic piece and the valve shell, the functions of hydrogen filling, hydrogen supply and stable hydrogen storage of the gas cylinder can be realized, and the reasonable and effective use of the gas cylinder is ensured. And electromagnetic drive spare, sealing valve, armature, elastic component and all be located the valve casing, need not occupy the outer installation space of valve casing, reduced the structural dimension of high-pressure bottle valve effectively, reduce the installation degree of difficulty, electromagnetic drive spare's overall dimension is littleer, and the required consumption of armature drive is lower, does benefit to the reduction running cost. Meanwhile, the electromagnetic valve can realize the functions of unidirectional conduction and automatic switching, has stronger functionality and is beneficial to realizing different use conditions.
Solenoid valves for high pressure cylinder valves according to some embodiments of the present application further comprise: the elastic piece comprises a main valve spring and a pilot valve spring, the pilot valve spring is located at one end of the armature, which is away from the sealing valve, the main valve spring is elastically connected between the armature and the pilot valve spring, and the pilot valve spring is elastically connected between the pilot valve spring and the second end face of the movable cavity.
According to the electromagnetic valve of the high-pressure bottle valve, the electromagnetic driving piece comprises an electromagnetic coil, the electromagnetic coil is installed in the valve shell, at least part of the electromagnetic coil is sleeved outside the armature, and the rest of the electromagnetic coil is sleeved outside the stop iron.
According to the electromagnetic valve of the high-pressure cylinder valve, according to some embodiments of the application, the inner peripheral wall of the movable cavity is provided with a coil mounting groove which is recessed outwards along the radial direction, the electromagnetic coil is mounted in the coil mounting groove, and two ends of the electromagnetic coil are respectively in sealing fit with two ends of the coil mounting groove.
According to the electromagnetic valve of the high-pressure bottle valve, two ends of the stop iron are provided with a first mounting groove and a second mounting groove which are opened along the axial direction, the main valve spring is arranged in the first mounting groove, at least part of the main valve spring extends out of the first mounting groove to be pressed against the second end face of the movable cavity, the pilot valve spring is arranged in the second mounting groove, and at least part of the pilot valve spring extends out of the second mounting groove to be pressed against the end face of the armature.
Solenoid valves for high pressure cylinder valves according to some embodiments of the present application further comprise: the limiting column is arranged in the movable cavity, is positioned between the sealing valve and the stop iron, and has an axial length greater than that of the armature.
Solenoid valves for high pressure cylinder valves according to some embodiments of the present application further comprise: and the sealing piece is arranged on the outer peripheral wall of the sealing valve and is suitable for pressing the inner peripheral wall of the movable cavity so as to enable a gap between the armature and the retaining iron to be spaced from the second air port.
According to the electromagnetic valve of the high-pressure bottle valve, one end of the sealing valve, which faces the first air port, is provided with a first step surface and a second step surface, the first step surface surrounds the flow passage, the second step surface surrounds the first step surface, the first step surface protrudes out of the second step surface in the axial direction of the sealing valve, the first step surface is propped against the first end surface of the movable cavity, and the second step surface is spaced from the first end surface and defines the driving gap.
According to the electromagnetic valve of the high-pressure bottle valve, a plurality of second air ports are arranged on the peripheral wall of the valve housing at intervals along the circumferential direction.
The application also provides a high-pressure bottle valve.
According to the high-pressure cylinder valve of the embodiment of the application, the electromagnetic valve of the high-pressure cylinder valve of any one of the embodiments is arranged.
The advantages of the high-pressure cylinder valve and the electromagnetic valve of the high-pressure cylinder valve are the same as those of the electromagnetic valve of the high-pressure cylinder valve in the prior art, and are not repeated here.
Additional aspects and advantages of the application 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 application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
Fig. 1 is a schematic structural view of a high-pressure cylinder valve according to an embodiment of the present application;
fig. 2 is a schematic structural view of a solenoid valve of a high-pressure cylinder valve according to an embodiment of the present application;
FIG. 3 is an exploded view of a solenoid valve of a high pressure cylinder valve according to an embodiment of the present application;
fig. 4 is a cross-sectional view of a solenoid valve of a high pressure cylinder valve according to an embodiment of the present application.
Reference numerals:
The high-pressure cylinder valve 1000 is provided with,
The solenoid valve 100 is operated by a solenoid valve,
A valve housing 1, a first port 11, a second port 12, a housing seal 13,
Sealing shutter 2, through-flow channel 21, seal 23,
Stop iron 31, armature 32, limit post 321, electromagnetic coil 33, sealing ring 331, main valve spring 34, pilot valve spring 35,
A cylinder valve housing 101.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
The following describes a solenoid valve 100 of a high-pressure cylinder valve 1000 according to an embodiment of the present application with reference to fig. 1 to 4, where the solenoid valve 100 has a simple structure, can be installed and integrated in the high-pressure cylinder valve 1000, and facilitates reducing the structural size of the high-pressure cylinder valve 1000, thereby reducing the power consumption of the solenoid valve 100, reducing the overall installation space of the high-pressure cylinder valve 1000, and being suitable for smaller-sized gas cylinders, and the solenoid valve 100 can realize unidirectional conduction and automatic switching, and has strong practicability, and is beneficial to meeting the use requirements under different operation conditions.
As shown in fig. 1 to 4, the solenoid valve 100 of the high pressure cylinder valve 1000 according to the embodiment of the present application includes: the valve housing 1, the sealing flap 2, the armature 32, the spring element and the electromagnetic drive.
The solenoid valve 100 of the present application is installed in the cylinder valve housing 101 of the high-pressure cylinder valve 1000, that is, the valve housing 1 is installed in the cylinder valve housing 101, wherein, as shown in fig. 2, two housing seal rings 13 are provided on the outer peripheral wall of the valve housing 1, so that the housing seal rings 13 can perform a sealing function between the valve housing 1 and the cylinder valve housing 101. And the electromagnetic valve 100 is used for controlling the on-off state of the bottle valve shell 101 so as to selectively seal the bottle mouth and play a role in storing and releasing high-pressure hydrogen.
The valve housing 1 has a movable cavity extending along the axial direction, and the end part of the valve housing 1 is provided with a first air port 11 communicated with the movable cavity, and the peripheral wall of the valve housing 1 is provided with a second air port 12 communicated with the movable cavity, wherein the first air port 11 is used for being communicated with the outside of the gas cylinder, and the second air port 12 is used for being communicated with the inner cavity of the gas cylinder. In this way, in the process of filling hydrogen, the first air port 11 can be used as an air inlet, the second air port 12 can be used as an air outlet, the first air port 11 is communicated with the second air port 12 through the movable cavity, and an external air source can fill high-pressure hydrogen through the first air port 11 so that the high-pressure hydrogen sequentially enters the high-pressure gas cylinder through the first air port 11, the movable cavity and the second air port 12; when the hydrogen in the gas cylinder is released, the first gas port 11 can be used as a gas outlet, the second gas port 12 can be used as a gas inlet, the first gas port 11 is communicated with the second gas port 12 through the movable cavity, high-pressure hydrogen in the high-pressure gas cylinder can flow into the movable cavity through the second gas port 12, and then the high-pressure hydrogen is sequentially released into the next pipeline through the second gas port 12, the movable cavity and the first gas port 11, so that the supply of the high-pressure hydrogen is realized.
The sealing valve 2 is movably installed in the movable cavity and is used for selectively communicating the first air port 11 with the second air port 12, that is, the sealing valve 2 is used for controlling the communication state between the first air port 11 and the second air port 12, for example, when the sealing valve 2 seals the second air port 12, no hydrogen gas flows between the first air port 11 and the second air port 12, and when the sealing valve 2 does not seal the second air port 12, the hydrogen gas flows between the first air port 11 and the second air port 12, and the air flows with different flow directions can be realized according to the pressure difference between the two positions.
As shown in fig. 1, the sealing shutter 2 has a through-flow passage 21 that communicates the first air port 11 with the movable chamber, and the outer peripheral wall of the sealing shutter 2 is in sealing engagement with the inner peripheral wall of the movable chamber. The elastic member, the armature 32 and the sealing shutter 2 are disposed in the movable chamber in this order, and the armature 32 is adapted to close the through-flow passage 21 under the force of the elastic member so that the first air port 11 communicates with the through-flow passage 21 but not with the second air port 12. And a driving gap communicated with the second air port 12 is arranged between the end face of one end of the sealing valve 2, which is away from the armature 32, and the first end face of the movable cavity, and an electromagnetic driving piece is used for driving the armature 32 to move in a direction away from the sealing valve 2. When the electromagnetic driving piece is in no-current conduction, the driving gap is communicated with the second air port 12 and is disconnected with the first air port 11, and the driving gap is always kept balanced with the air pressure in the air cylinder through the second air port 12, so that when the first air port 11 is communicated with one end of the sealing valve 2, which is far away from the first air port 11, through the flow passage 21, the sealing valve 2 is suitable for being opened under the action of the pressure at the driving gap, and the communication between the first air port 11 and the second air port 12 is realized.
When the electromagnetic driving member is not powered, the armature 32 is in a position against the sealing valve 2 under the action of the elastic member, the sealing valve 2 is against the first end surface of the movable cavity, so that the through-flow channel 21 is in a closed state, and at this time, the first air port 11 and the second air port 12 are disconnected through the sealing valve 2, that is, the inner space and the outer space of the air bottle are in a closed and disconnected state, so that the air bottle has stable air pressure and air storage environment.
When the hydrogen needs to be flushed into the gas cylinder, an external high-pressure gas source is in butt joint with the first gas port 11, so that the pressure of the high-pressure hydrogen filled from the outside directly acts on the sealing valve 2, and the sealing valve 2 is pressed against the armature 32 to overcome the elastic force of the elastic piece and move to a position for communicating the first gas port 11 with the second gas port 12. It should be noted that, the first air port 11 penetrates through the end face of the first end of the movable cavity, the second air port 12 is disposed at a position of the movable cavity near the first end, and the second air port 12 is disposed opposite to the second end of the movable cavity, so that when the sealing valve 2 moves along the axial direction, the first air port 11 and the second air port 12 can be quickly communicated, thereby facilitating the filling of external hydrogen.
Meanwhile, when the hydrogen is required to be supplied to the outside through the gas cylinder, the electromagnetic driving piece is in a current conducting state, the electromagnetic driving piece drives the armature 32 to move in a direction away from the sealing valve 2, so that the through-flow channel 21 of the sealing valve 2 is in a state that two ends are communicated, and thus, external low-pressure air flow enters the movable cavity through the through-flow channel 21, the air pressure at one end of the sealing valve 2 is higher than the air pressure at the other end, namely, the air pressure at the driving gap is higher than the air pressure at the position where the sealing valve 2 is away from one end of the first air port 11, so that the sealing valve 2 moves in a direction away from the first air port 11 under the action of the air pressure difference at two ends, at the moment, the first air port 11 and the second air port 12 are in a communicating state, so that the air flow in the gas cylinder can be gradually discharged to the outside through the second air port 12, the driving gap and the first air port 11, thus the hydrogen supply to external equipment is realized, and when the electromagnetic driving piece is in no current conduction, the sealing valve 2 automatically cuts off the first air port 11 and the second air port 12 under the action of the elastic piece. Thus, the solenoid valve 100 of the present application can realize a self-switching action, which is advantageous in that the first gas port 11 and the second gas port 12 are respectively connected and disconnected at the time of hydrogen supply and after supply.
Therefore, in the application, through the matching use of the electromagnetic driving piece, the sealing valve 2, the armature 32, the elastic piece and the valve shell 1, the air bottle can realize the functions of hydrogen filling, hydrogen supply and stable hydrogen storage, and the air bottle is ensured to be reasonably and effectively used. And electromagnetic drive spare, sealing valve 2, armature 32, elastic component and all be located valve housing 1, do not need to occupy the installation space outside the valve housing 1, reduced the structural dimension of high-pressure cylinder valve 1000 effectively, reduce the installation degree of difficulty, electromagnetic drive spare's overall dimension is littleer, and the required consumption of armature 32 drive is lower, does benefit to the reduction in running cost. Meanwhile, the electromagnetic valve 100 in the application can realize the functions of unidirectional conduction and automatic switching, has stronger functionality and is beneficial to realizing different use conditions.
In some embodiments, as shown in fig. 3 and 4, the solenoid valve 100 further includes: the elastic piece comprises a main valve spring 34 and a pilot valve spring 35, the stop iron 31 is positioned at one end of the armature 32, which is far away from the sealing valve 2, the main valve spring 34 is elastically connected between the armature 32 and the stop iron 31, and the pilot valve spring 35 is elastically connected between the stop iron 31 and the second end surface of the movable cavity.
Wherein, as shown in fig. 4, the stop iron 31, the armature 32 and the sealing valve 2 are sequentially arranged in the movable cavity along the axial direction, wherein, the main valve spring 34 and the pilot valve spring 35 are in normal pressure shrinkage state, namely the pilot valve spring 35 is used for providing elastic force for pre-tightening the armature 32 towards the sealing valve 2 so as to always press the armature 32 when the armature 32 is not driven, so that the overflow channel 21 is in a closed state, and meanwhile, the main valve spring 34 is used for providing elastic force for pre-tightening the stop iron 31 towards the armature 32. In this way, it is ensured that the battery valve is always in a closed state when the vehicle is not running.
In the hydrogen gas supply process, as shown in fig. 4, after the electromagnetic driving member is operated, the pilot side is opened, and then the main seal is opened. Under the action of the electromagnetic force of the electromagnetic driving piece to the left, the armature 32 moves to the left against the elastic force of the pilot valve spring 35 and is attached to the stop iron 31, at the moment, the left end face of the sealing valve 2 is separated from the armature 32, so that high-pressure hydrogen between the armature 32 and the sealing valve 2 instantaneously flows out of the high-pressure bottle valve 1000 through the flow passage 21 of the sealing valve 2, and the hydrogen pressure at the left end of the sealing valve 2 rapidly drops; the hydrogen pressure in the driving gap at the right end of the sealing valve 2 is far greater than the pressure in the gas cylinder, so that the sealing valve 2 is subjected to high-pressure leftward, and rapidly moves leftward against the elasticity of the main valve spring 34, the gap between the right end surface of the sealing valve 2 and the valve housing 1 is increased, and the electromagnetic valve 100 is fully opened.
In some embodiments, as shown in fig. 3 and 4, the electromagnetic driving member includes an electromagnetic coil 33, the electromagnetic coil 33 is installed in the valve housing 1, at least part of the electromagnetic coil 33 is sleeved outside the armature 32, and the rest of the electromagnetic coil 33 is sleeved outside the stop iron 31, that is, the electromagnetic coil 33 is sleeved outside the armature 32, and the armature 32 is always located in the electromagnetic coil 33 during the movement of the armature 32 in the direction away from the first air port 11, so as to ensure that the magnetic field force generated by the electromagnetic coil 33 can effectively drive the armature 32, thereby ensuring that the electromagnetic valve 100 can be accurately opened.
In some embodiments, as shown in fig. 4, the inner peripheral wall of the movable chamber is provided with a coil mounting groove recessed radially outward, the electromagnetic coil 33 is mounted in the coil mounting groove, and both ends of the electromagnetic coil 33 are respectively in sealing engagement with both ends of the coil mounting groove. As shown in fig. 4, the electromagnetic coil 33 is positioned in the coil mounting groove to be fixedly connected with the inner wall of the coil mounting groove, and the inner peripheral wall of the electromagnetic coil 33 is flush with the inner peripheral wall of the movable chamber. In this way, the electromagnetic coil 33 can drive not only the armature 32, but also the electromagnetic coil 33 does not hinder the movement of the armature 32.
As shown in fig. 4, two ends of the electromagnetic coil 33 are respectively provided with a sealing ring 331, the sealing rings 331 are installed in end grooves of the ends of the electromagnetic coil 33, and at least part of the sealing rings 331 extend out of the end grooves to be pressed against the inner end surfaces of the coil installation grooves, so that the electromagnetic coil 33 is guaranteed to be in sealing fit with the valve housing 1.
In some embodiments, the two ends of the stop iron 31 are provided with a first mounting groove and a second mounting groove which are open along the axial direction, the main valve spring 34 is mounted in the first mounting groove, at least part of the main valve spring 34 extends out of the first mounting groove to be pressed against the second end face of the movable cavity, the pilot valve spring 35 is mounted in the second mounting groove, and at least part of the pilot valve spring 35 extends out of the second mounting groove to be pressed against the end face of the armature 32.
As shown in fig. 4, a first mounting groove is formed in the left end of the stop iron 31, the first mounting groove is opened leftwards along the axial direction of the stop iron 31, the main valve spring 34 is mounted in the first mounting groove, wherein the inner wall of the first mounting groove can play a role in radial limiting of the main valve spring 34, so that bending deformation of the main valve spring 34 in the axial expansion process is avoided, the main valve spring 34 can play a role in effectively pre-tightening the stop iron 31, a second mounting groove is formed in the right end of the stop iron 31, the second mounting groove is opened rightwards along the axial direction of the stop iron 31, the pilot valve spring 35 is mounted in the second mounting groove, the inner wall of the second mounting groove can play a role in radial limiting of the pilot valve spring 35, bending deformation of the pilot valve spring 35 in the axial expansion process is avoided, and the pilot valve spring 35 can play a role in effectively pre-tightening the armature 32.
In some embodiments, the solenoid valve 100 of the high pressure spool valve 1000 further comprises: the limiting post 321, the limiting post 321 is installed in the movable cavity, the limiting post 321 is located between the sealing valve 2 and the stop iron 31, and the axial length of the limiting post 321 is greater than that of the armature 32. Wherein, both ends of the limiting post 321 can be abutted against the sealing shutter 2 and the stop iron 31, so that the armature 32 can move along the axial direction in the space between the sealing shutter 2 and the stop iron 31. As shown in fig. 4, after the armature 32 moves toward the left end toward the stop iron 31, the sealing shutter 2 does not completely move along with the armature 32 to a position against the armature 32, but a low-pressure gap is formed between the sealing shutter 2 and the armature 32, so that an effective pressure difference is formed between the driving gap and the pressing gap at two ends of the sealing shutter 2, so that the sealing shutter 2 moves toward the left end under the action of the pressure difference, and further the opening of the sealing shutter 2 is realized.
In some embodiments, the solenoid valve 100 of the high pressure spool valve 1000 further comprises: and a seal member 23, the seal member 23 being mounted to the outer peripheral wall of the sealing shutter 2, the seal member 23 being adapted to press against the inner peripheral wall of the movable chamber so that the gap between the armature 32 and the stopper 31 is spaced apart from the second air port 12.
The sealing element 23 is sleeved on the outer peripheral wall of the sealing valve 2, and the sealing element 23 is propped against the inner peripheral wall of the movable cavity. As shown in fig. 4, the sealing member 23 is located near the left end of the outer peripheral wall of the sealing shutter 2, and it is understood that the second air port 12 is located at the right end of the sealing shutter 2, so that the sealing member 23 can form two spaces at both ends of the sealing member 23 at intervals of the outer peripheral wall of the sealing shutter 2 and spaced apart in the axial direction. Thus, when the gas is supplied, the gas pressure on the right side of the sealing member 23 and the second gas port 12 is in a high pressure state when the left end of the flow passage 21 is in a low pressure state, so that a pressure difference can be formed between both ends in the axial direction of the sealing member 23, thereby facilitating the opening of the sealing shutter 2.
In some embodiments, the outer peripheral wall of the sealing shutter 2 is provided with a sealing groove extending in the circumferential direction, in which a radially inner ring portion of the seal 23 is mounted, and a radially outer ring portion of the seal 23 is located outside the sealing groove and is used to press against the inner peripheral wall of the movable chamber.
In some embodiments, the end of the sealing shutter 2 facing the first air port 11 has a first step surface surrounding the flow passage 21 and a second step surface surrounding the first step surface, the first step surface protrudes from the second step surface in the axial direction of the sealing shutter 2, and the first step surface abuts against the first end surface of the movable cavity, and the second step surface is spaced apart from the first end surface and defines a driving gap.
That is, as shown in fig. 4, when the sealing shutter 2 is installed in the valve housing 1, the end of the armature 32 abuts against the sealing shutter 2, at this time, the first step surface of the sealing shutter 2 abuts against the inner end surface of the movable chamber, and the second step surface is spaced apart from the inner end surface of the movable chamber to form a driving gap therebetween, and as shown in fig. 4, the driving gap is always communicated with the space in the gas cylinder through the second gas port 12, that is, the gas flow therein is in a high pressure state.
Thus, when the armature 32 is separated from the sealing valve 2 under the driving action of the electromagnetic coil 33, the sealing valve 2 is not limited by the armature 32, and one end of the flow passage 21 is in an open state, so that external air flow can enter the other end of the sealing valve 2 from the flow passage 21, and the external air flow is low-pressure air flow, thereby respectively forming a low-pressure area and a high-pressure area at two ends of the sealing valve 2, so that the sealing valve 2 moves axially in the movable cavity under the action of air pressure difference, and in the process of moving the sealing valve 2, a driving gap between the first step surface and the inner end surface of the movable cavity is gradually increased, and the first air port 11 is communicated with the second air port 12, so that the communication effect of the inner space and the outer space of the air bottle is realized.
In some embodiments, the second gas ports 12 are a plurality of, the plurality of second gas ports 12 being circumferentially spaced apart from the peripheral wall of the valve housing 1. That is, a plurality of second air ports 12 may be provided at the peripheral wall of the valve housing 1 to communicate with the first air port 11 in common, so that the inside of the air cylinder and the first air port 11 are air-circulated through the plurality of second air ports 12, improving the efficiency of air cylinder inflation and deflation, and lifting.
As shown in the embodiment of fig. 2, the number of the second air ports 12 may be four, and the four second air ports 12 are circumferentially spaced apart from each other and arranged on the peripheral wall of the valve housing 1, and the four second air ports 12 are uniformly spaced apart, that is, two of the four second air ports 12 are radially opposite to each other, so that the air flow at the first air port 11 can uniformly flow into the air cylinder through the four second air ports 12, which is beneficial to improving the efficiency and the uniformity of the air flow.
The application also provides the high-pressure bottle valve 1000.
According to the high-pressure cylinder valve 1000 of the embodiment of the present application, the solenoid valve 100 of the high-pressure cylinder valve 1000 described in any one of the embodiments described above is provided. Through with the electromagnetic drive piece, sealing valve 2, armature 32, the elastic component of solenoid valve 100 and all be located valve housing 1, do not need to occupy the outer installation space of valve housing 1, reduced the structural dimension of high-pressure cylinder valve 1000 effectively, the installation degree of difficulty reduces, and the overall dimension of electromagnetic drive piece is littleer, and the required consumption of armature 32 drive is lower, does benefit to the reduction in running cost. Meanwhile, the electromagnetic valve 100 in the application can realize the functions of unidirectional conduction and automatic switching, has stronger functionality and is beneficial to realizing different use conditions.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
In the description of the application, a "first feature" or "second feature" may include one or more of such features.
In the description of the present application, "plurality" means two or more.
In the description of the application, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.
In the description of the application, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.

Claims (8)

1. A solenoid valve (100) for a high pressure cylinder valve (1000), comprising:
A valve housing (1), wherein the valve housing (1) is provided with a movable cavity extending along the axial direction, a first air port (11) communicated with the movable cavity is arranged at the end part of the valve housing (1), and a second air port (12) communicated with the movable cavity is arranged on the peripheral wall of the valve housing (1);
A sealing valve (2), wherein the sealing valve (2) is movably arranged in the movable cavity and is used for selectively communicating the first air port (11) with the second air port (12), and the sealing valve (2) is provided with a through-flow channel (21) communicated with the first air port (11);
The armature (32) and the elastic piece are sequentially arranged in the movable cavity, the armature (32) and the sealing valve (2) are suitable for closing the flow passage (21) under the acting force of the elastic piece, and a driving gap communicated with the second air port (12) is formed between the end face of one end, away from the armature (32), of the sealing valve (2) and the first end face of the movable cavity;
an electromagnetic drive for driving the armature (32) in a direction away from the sealing flap (2); further comprises: the elastic piece comprises a main valve spring (34) and a pilot valve spring (35), the pilot valve spring (35) is positioned at one end of the armature (32) away from the sealing valve (2), the main valve spring (34) is elastically connected between the armature (32) and the pilot valve spring (31), and the pilot valve spring (35) is elastically connected between the pilot valve spring (31) and the second end surface of the movable cavity; the electromagnetic driving piece comprises an electromagnetic coil (33), the electromagnetic coil (33) is installed in the valve housing (1), at least part of the electromagnetic coil (33) is sleeved outside the armature (32) and the rest of the electromagnetic coil (33) is sleeved outside the stop iron (31).
2. The solenoid valve (100) of the high-pressure cylinder valve (1000) according to claim 1, wherein an inner peripheral wall of the movable chamber is provided with a coil mounting groove recessed radially outward, the electromagnetic coil (33) is mounted in the coil mounting groove, and both ends of the electromagnetic coil (33) are respectively in sealing engagement with both ends of the coil mounting groove.
3. The solenoid valve (100) of the high-pressure cylinder valve (1000) according to claim 1, wherein both ends of the stopper (31) are provided with a first mounting groove and a second mounting groove which are opened in an axial direction, the main valve spring (34) is mounted in the first mounting groove and at least part of the main valve spring (34) extends out of the first mounting groove to be pressed against a second end face of the movable chamber, and the pilot valve spring (35) is mounted in the second mounting groove and at least part of the pilot valve spring (35) extends out of the second mounting groove to be pressed against an end face of the armature (32).
4. The solenoid valve (100) of a high pressure cylinder valve (1000) of claim 1, further comprising: the limiting post (321), the limiting post (321) install in the activity intracavity, just limiting post (321) are located sealing valve (2) with between the back iron (31), just the axial length of limiting post (321) is greater than the axial length of armature (32).
5. The solenoid valve (100) of a high pressure cylinder valve (1000) of claim 1, further comprising: -a seal (23), said seal (23) being mounted to an outer peripheral wall of said sealing shutter (2), said seal (23) being adapted to press against an inner peripheral wall of said movable chamber to space a gap between said armature (32) and said stop (31) from said second air port (12).
6. The solenoid valve (100) of a high-pressure cylinder valve (1000) according to claim 1, characterized in that an end of the sealing shutter (2) facing the first air port (11) has a first step surface surrounding the through-flow passage (21) and a second step surface surrounding the first step surface, the first step surface protrudes from the second step surface in an axial direction of the sealing shutter (2), and the first step surface is pressed against a first end surface of the movable chamber, the second step surface being spaced apart from the first end surface and defining the driving gap.
7. The solenoid valve (100) of a high pressure cylinder valve (1000) according to claim 1, wherein the second gas port (12) is plural, and the plural second gas ports (12) are arranged at a circumferential wall of the valve housing (1) at intervals in a circumferential direction.
8. A high pressure cylinder valve (1000), characterized in that a solenoid valve (100) of the high pressure cylinder valve (1000) according to any one of claims 1-7 is provided.
CN202011349503.1A 2020-11-26 2020-11-26 Solenoid valve of high-pressure bottle valve and high-pressure bottle valve Active CN114542969B (en)

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