CN213746127U

CN213746127U - High-pressure cylinder valve and gas cylinder

Info

Publication number: CN213746127U
Application number: CN202022811203.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Weishi Energy Technology Co Ltd
Current assignee: Weishi Energy Technology Co Ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-20
Anticipated expiration: 2030-11-26

Abstract

The application discloses high-pressure cylinder valve and gas cylinder, high-pressure cylinder valve includes: the valve body is suitable for being installed at the bottle opening of the gas bottle, a plug port is formed in one end, located outside the bottle opening, of the valve body, and the valve body is provided with a line passing channel; the sensor shell assembly is mounted on the valve body, and a first end of the sensor shell assembly extends into the gas cylinder; the temperature sensing element is arranged in the first end of the sensor shell assembly and is connected with the plug interface through a connecting line arranged in the wire passing channel. The high-pressure cylinder valve can ensure that the temperature of the temperature sensing element in the gas cylinder is accurately and effectively detected by installing the temperature sensing element in the sensor shell component and extending to the gas cylinder, and the temperature sensing element cannot be impacted by hydrogen gas flow in the gas cylinder, so that the use accuracy of the high-pressure cylinder valve is ensured.

Description

High-pressure cylinder valve and gas cylinder

Technical Field

The application relates to the technical field of hydrogen storage, in particular to a high-pressure cylinder valve and a gas cylinder with the high-pressure cylinder valve.

Background

The hydrogen energy becomes a novel green energy source with the most development potential in the 21 st century by the advantages of high energy, reproducibility, environmental protection and the like, but the lagged hydrogen storage technology and the unsuitable safety performance seriously hinder the large-scale application of the hydrogen energy. Wherein, hydrogen storage cylinder valve installs on high-pressure hydrogen storage cylinder, and high-pressure hydrogen storage cylinder has certain temperature variation in aerifing the in-process with the gassing, and when the high temperature or cross low, can harm high-pressure hydrogen storage cylinder inner bag, hydrogen reveals in probably causing the gas cylinder, leads to dangerous the emergence, so temperature variation in the needs real-time supervision gas cylinder, guarantee gas cylinder security. In the prior art, the probe of the temperature sensor is exposed and arranged inside the gas cylinder to detect the temperature change in the gas cylinder, so the probe of the temperature sensor is easily damaged by the arrangement mode, the accuracy of temperature detection is influenced, and an improved space exists.

Disclosure of Invention

The present application is directed to solving at least one of the problems in the prior art. For this reason, an object of the present application is to provide a high pressure cylinder valve, which can prevent a temperature sensing element from being damaged by providing a unique sensor structure, thereby ensuring accuracy of temperature detection of the high pressure cylinder valve.

A high-pressure cylinder valve according to an embodiment of the present application includes: the valve body is suitable for being installed at the bottle opening of the gas bottle, a plug port is formed in one end, located outside the bottle opening, of the valve body, and the valve body is provided with a line passing channel; the sensor shell assembly is mounted on the valve body, and a first end of the sensor shell assembly extends into the gas cylinder; the temperature sensing element is arranged in the first end of the sensor shell assembly and is connected with the plug interface through a connecting line arranged in the wire passing channel.

According to the high-pressure cylinder valve of this application embodiment, through install temperature sensing element in sensor housing subassembly and extend the gas cylinder in, can guarantee that temperature sensing element carries out accuracy, detection effectively to the temperature in the gas cylinder, and temperature sensing element can not receive the impact of the hydrogen air current in the gas cylinder to guarantee accuracy and the reliability that high-pressure cylinder valve used, promote the whole performance of fuel cell.

According to some embodiments of the present application, the sensor housing assembly includes a sensor housing and a sensor support, the sensor housing is mounted to the valve body, and the sensor housing has a mounting cavity extending axially, the sensor support is mounted to the mounting cavity, and the temperature sensing element is mounted to the sensor support and located within the gas cylinder.

According to the high-pressure cylinder valve of some embodiments of this application, the sensor housing includes installation section and extension section, the installation section with the extension section links to each other along the axial in proper order, the installation section with the valve body links to each other, the extension section extends to in the gas cylinder, the installation cavity link up the installation section just extends to in the extension section, temperature sensing element is located in the extension section.

According to some embodiments of the subject application, the outer peripheral wall of the mounting section is in sealing engagement with the inner peripheral wall of the valve body.

According to the high-pressure cylinder valve of some embodiments of this application, the periphery wall of erection section is equipped with the seal groove, install the sealing washer in the seal groove, the sealing washer support press in the internal perisporium wall of valve body.

A high pressure cylinder valve according to some embodiments of the present application, further comprising: the heat protection support, the radial dimension of installation section is greater than the radial dimension of extension section, the heat protection support cover is located outside the extension section, just the heat protection support with the terminal surface of installation section links to each other.

According to some embodiments of the present application, the inner peripheral wall of the heat shield support is disposed spaced apart from the outer peripheral wall of the extension.

According to some embodiments of the application, the insertion interface is provided with a circuit board, the connecting wires are electrically connected with the circuit board, and the connecting wires are arranged in a U shape at the circuit board.

According to the high-pressure cylinder valve of some embodiments of this application, the first end of sensor support extends in the installation cavity with the terminal surface of installation cavity is spaced apart, the first end of sensor support is equipped with the orientation the open mounting groove of terminal surface of installation cavity, temperature sensing element install in the mounting groove and at least part bulge to outside the mounting groove.

The application also provides a gas cylinder.

The gas cylinder according to the embodiment of the application is provided with the high-pressure cylinder valve in any one of the embodiments.

The advantages of the gas cylinder and the high-pressure cylinder valve relative to the prior art are the same, and are not described in detail herein.

Additional aspects and advantages of the present 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 present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a high pressure cylinder valve according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a high pressure cylinder valve according to an embodiment of the present application.

Reference numerals:

the high-pressure cylinder valve 100 is,

the sensor comprises a sensor shell 1, a mounting section 11, a sealing ring 111, a transition table stage 12, an extension section 13, a sensor support 2, a plug interface 3, a circuit board 31, a plug terminal 32, a temperature sensing element 4, a connecting wire 5, a thermal protection support 6 and a valve body 7.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

Unless otherwise specified, the front-rear direction in the present application is the longitudinal direction of the vehicle, i.e., the X direction; the left and right directions are the transverse direction of the vehicle, namely the Y direction; the up-down direction is the vertical direction of the vehicle, i.e., the Z direction.

Referring to fig. 1-2, a high-pressure cylinder valve 100 according to an embodiment of the present application is described, in which a temperature sensing element 4 is disposed in the high-pressure cylinder valve 100, the temperature sensing element 4 is located in the gas cylinder, so that the temperature inside the gas cylinder can be accurately and effectively detected, and the temperature sensing element 4 is not impacted by high-pressure hydrogen in the gas cylinder, which is beneficial to improving the stability of the high-pressure cylinder valve 100.

As shown in fig. 1 to 2, a high pressure cylinder valve 100 according to an embodiment of the present application includes: a valve body 7, a sensor housing assembly and a temperature sensing element 4.

It should be noted that the gas cylinder has a cylinder opening for charging and discharging hydrogen, and the valve body 7 is installed at the cylinder opening of the gas cylinder for selectively sealing the cylinder opening, thereby ensuring effective storage of hydrogen in the gas cylinder.

The one end that valve body 7 is located the bottleneck outside is equipped with interface 3, and valve body 7 has wire passing channel, and sensor housing unit mount is in valve body 7, and in sensor housing unit's first end extended to the gas cylinder, and temperature sensing element 4 is installed in sensor housing unit's first end, and temperature sensing element 4 links to each other with interface 3 through arranging connecting wire 5 in wire passing channel.

That is to say, temperature sensing element 4 in this application installs in the first end of sensor housing assembly can detect the temperature in the gas cylinder effectively, and temperature sensing element 4 does not expose in the gas cylinder, and sensor housing assembly can play certain guard action to temperature sensing element 4 to avoid the high pressure hydrogen gas stream in the gas cylinder to produce the impact effect to temperature sensing element 4.

Meanwhile, the temperature sensing element 4 is connected with the interface 3 through the connecting wire 5, so that the electric connection between the temperature sensing element 4 and external control equipment is favorably realized, the temperature signal detected by the temperature sensing element 4 is more accurately and effectively output to the external control equipment, and a user can timely and effectively obtain the air pressure in the bottle. Wherein, through set up the line passageway of crossing that is used for arranging connecting wire 5 in valve body 7, do benefit to and guarantee that connecting wire 5 installs steadily, guarantee temperature detection signal transmission's reliability, from this, can solve temperature sensing element 4 and connecting wire 5 difficult sealed, the problem of revealing easily, like this, even when there is repeated high-pressure draught impact in the gas cylinder, temperature sensing element 4 also can keep good detection state all the time to guarantee temperature detection's accuracy and reliability.

The temperature sensing element 4 in the present application may include an NTC thermistor that is formed of a sintered body made of a semiconductor material or the like containing Cr — Mn as a main component and is capable of accurately detecting the temperature in the gas cylinder. The temperature sensing element 4 and the solenoid valve of the high-pressure cylinder valve 100 can share the same connector, and the connecting line 5 of the temperature sensing element 4 and the connecting line 5 of the solenoid valve are clear in color, so that the temperature sensing element is easy to distinguish, and the wiring error can be avoided.

According to the high-pressure cylinder valve 100 of the embodiment of the application, the temperature sensing element 4 is installed in the sensor shell assembly and extends into the gas cylinder, so that the temperature of the temperature sensing element 4 in the gas cylinder can be accurately and effectively detected, and the temperature sensing element 4 cannot be impacted by hydrogen gas flow in the gas cylinder, therefore, the accuracy and the reliability of the use of the high-pressure cylinder valve 100 are ensured, and the performance of the whole fuel cell is improved.

In some embodiments, as shown in fig. 1, the sensor housing assembly includes a sensor housing 1 and a sensor holder 2, the sensor housing 1 is mounted to the valve body 7, the sensor housing 1 has a mounting cavity extending in the axial direction, the sensor holder 2 is mounted in the mounting cavity, and the temperature sensing element 4 is mounted to the sensor holder 2 and located in the gas cylinder.

It should be noted that, as shown in fig. 1, the right end portion of the sensor housing 1 is installed and matched with the valve body 7, so that the entire sensor housing 1 is fixedly installed on the valve body 7, meanwhile, the left end portion of the sensor housing 1 extends into the gas cylinder, the installation cavity extends along the axial direction of the sensor housing 1, and as shown in fig. 1, the installation cavity is closed at the left end of the sensor housing 1 and closed at the right end of the sensor housing 1. As shown in fig. 1, the sensor holder 2 can be inserted from the open end of the mounting cavity, and after the sensor holder 2 is mounted in the mounting cavity, the temperature sensing element 4 is located at an end of the mounting cavity close to the inside of the gas cylinder, so that the temperature sensing element 4 can accurately and effectively detect the temperature in the gas cylinder.

As shown in fig. 1, the temperature sensing element 4 and the sensor holder 2 can be mounted on the sensor housing 1 together, and can be taken down from the sensor housing 1 together, so that the structure is simple and the installation is convenient. It should be noted that, a sealing member may be disposed on the outer peripheral wall of the sensor holder 2, so that the outer peripheral wall of the sensor holder 2 and the inner peripheral wall of the sensor housing 1 can be effectively sealed, thereby ensuring that the temperature sensing element 4 can be used in a closed and stable environment, and ensuring the accuracy of temperature detection thereof.

In some embodiments, the sensor housing 1 includes a mounting section 11 and an extension section 13, as shown in fig. 2, a radial dimension of the mounting section 11 is larger than a radial dimension of the extension section 13, and the mounting section 11 and the extension section 13 are sequentially connected in an axial direction, wherein the mounting section 11 and the extension section 13 are integrally formed. As shown in fig. 2, the axis of the mounting section 11 coincides with the axis of the extension section 13, the mounting section 11 is connected with the valve body 7, the extension section 13 extends into the gas cylinder, the mounting cavity penetrates through the mounting section 11 and extends into the extension section 13, and the temperature sensing element 4 is located in the extension section 13.

That is to say, as shown in fig. 2, the mounting cavity penetrates the mounting section 11 in the axial direction, and a part of the mounting cavity extends into the extension section 13, so that the sensor holder 2 can be installed from the mounting section 11 and gradually installed toward the extension section 13, as shown in fig. 2, the temperature sensing element 4 is installed at the left end of the sensor holder 2, so that the temperature sensing element 4 can extend into the extension section 13 together with the sensor holder 2, so that the temperature sensing element 4 is located in the gas cylinder, and the temperature in the gas cylinder is detected, and thus the accuracy and reliability of the control of the high-pressure cylinder valve 100 are improved.

In some embodiments, the outer peripheral wall of the mounting segment 11 is in sealing engagement with the inner peripheral wall of the valve body 7. That is to say, after the sensor holder 2 and the sensor housing 1 are installed on the valve body 7, the sensor holder 2 is exposed towards the interior of the valve body 7, and the sensor housing 1 is in sealing fit with the valve body 7, so that the sensor holder 2 and the temperature sensing element 4 are sealed in the valve body 7, and thus, hydrogen in the gas cylinder can be prevented from entering the interior of the sensor housing 1 from a gap between the sensor housing 1 and the valve body 7, and a bad impact effect is generated on the temperature sensing element 4, so that the accuracy of detection of the temperature sensing element 4 is ensured.

In some embodiments, a sealing structure may be provided between the outer circumferential wall of the mounting section 11 and the inner circumferential wall of the valve body 7, so as to seal the gap between the mounting section 11 and the valve body 7 by the sealing structure, thereby ensuring the sealing effect in the sensor housing 1.

If a sealing groove is formed in the outer peripheral wall of the mounting section 11, as shown in fig. 2, the sealing groove is formed in the outer peripheral wall of the mounting section 11 and is recessed radially inward, the sealing groove may be an annular groove, a sealing ring 111 is installed in the sealing groove, the sealing ring 111 may be an O-shaped sealing ring, and the sealing ring 111 abuts against the inner peripheral wall of the valve body 7, so that the outer peripheral wall of the sensor housing 1 and the inner peripheral wall of the valve body 7 can be effectively sealed at each circumferential position.

It should be noted that, a seal ring 111 and a check ring may be installed in the seal groove, so that the seal ring 111 is installed more stably, the seal ring 111 is prevented from twisting in the seal groove, and the sealing performance between the sensor housing 1 and the valve body 7 is ensured.

In some embodiments, the high pressure cylinder valve 100 further comprises: it should be noted that, the radial dimension of the installation section 11 is greater than the radial dimension of the extension section 13, the thermal protection bracket 6 is sleeved outside the extension section 13, and the thermal protection bracket 6 is connected with the end surface of the installation section 11.

That is to say, the thermal protection support 6 cover is located and is extended section 13 and can play certain guard action to extension section 13 and the temperature sensing element 4 that is located extension section 13 outward, like this, in-process that the gas cylinder carries out the gassing of filling fast, thermal protection support 6 can avoid air current and high-pressure cylinder valve 100 air current to import and export direct contact, prevent that sensor housing 1 is used for the one end of installation temperature sensing element 4 and cylinder valve air current import and export to contact, reduce the temperature fluctuation scope, avoid temperature sensing element 4 unstability, the stability and the accuracy of temperature sensing element 4 have been guaranteed.

In some embodiments, as shown in fig. 2, the axial length of the thermal protection bracket 6 is greater than the axial length of the extension 13, so that the thermal protection bracket 6 can effectively cover the extension 13, thereby providing a greater degree of safety protection for the extension 13 and the temperature sensing element 4 located in the extension 13, and improving the structural stability of the high pressure cylinder valve 100.

In some embodiments, the inner circumferential wall of heat shield support 6 is disposed spaced apart from the outer circumferential wall of extension 13. As shown in fig. 2, a transition stage 12 is connected between the extension section 13 and the mounting section 11, wherein the radial dimension of the transition stage 12 is greater than the radial dimension of the extension section 13, and the radial dimension of the transition stage 12 is smaller than the radial dimension of the mounting section 11. As shown in fig. 2, the thermal protection bracket 6 is sleeved on the transition stage 12 and is in interference fit with the transition stage 12, so that the thermal protection bracket 6 is fixedly connected with the sensor housing 1.

As shown in fig. 2, the end of the thermal protection bracket 6 is provided with a connection flange, the connection flange is radially outwardly turned at the end of the thermal protection bracket 6, and as shown in fig. 2, the connection flange is attached to the end surface of the mounting section 11, so that the thermal protection bracket 6 and the sensor housing 1 have a large connection area, and the connection stability between the two is improved.

In some embodiments, as shown in fig. 2, a circuit board 31 is disposed at the socket 3, the connection lines 5 are electrically connected to the circuit board 31, and the connection lines 5 are arranged in a U shape at the circuit board 31, as shown in fig. 2, a socket terminal 32 is disposed at the socket 3, and the socket terminal 32 is connected to the circuit board 31 and is used for electrically connecting to an external device.

It should be noted that, the connecting line 5 is arranged in the line passing channel, and when the temperature in the gas cylinder changes, the connecting line 5 is easy to deform under the action of the temperature, and in the application, the connecting line 5 is arranged at the tail end in a U shape and is electrically connected with the circuit board 31, so that the expansion and contraction caused by the great change of the temperature can be compensated, and the fault tolerance rate is high. Wherein, the connector that temperature sensing element 4 in this application corresponds adopts the draw-in groove to link to each other with valve body 7, simple structure, simple to operate.

In some embodiments, the first end of the sensor holder 2 extends into the mounting cavity to be spaced apart from the end surface of the mounting cavity, the first end of the sensor holder 2 is provided with a mounting groove opening towards the end surface of the mounting cavity, and the temperature sensing element 4 is mounted in the mounting groove and at least partially protrudes out of the mounting groove.

As shown in fig. 2, the left end of the sensor holder 2 extends into the mounting cavity, and the left end of the sensor holder 2 is spaced apart from the inner end surface of the mounting cavity, so that there is enough mounting space therebetween for mounting the temperature sensing element 4, as shown in fig. 2, the left end of the sensor holder 2 is formed with a mounting groove opened in the axial direction, so that, after the temperature sensing element 4 is mounted in the mounting groove, a part of the temperature sensing element 4 is located in the mounting groove to keep the temperature sensing element 4 and the sensor holder 2 relatively stable, and another part of the temperature sensing element 4 is located in the mounting groove exposed out of the mounting cavity of the sensor housing 1, so that the temperature sensing element 4 can effectively detect the temperature in the gas cylinder, thereby improving the reliability of the high pressure cylinder valve 100.

The application also provides a gas cylinder.

According to the gas cylinder of this application embodiment, be provided with the high-pressure cylinder valve 100 of any kind of above-mentioned embodiment, through install temperature sensing element 4 in sensor housing subassembly and extend in the gas cylinder, can guarantee that temperature sensing element 4 carries out the accuracy to the temperature in the gas cylinder, detect effectively, and temperature sensing element 4 can not receive the impact of the hydrogen gas air current in the gas cylinder, thereby guarantee accuracy and the reliability that high-pressure cylinder valve 100 used, therefore, when being applied to the fuel cell vehicle with the gas cylinder of this application embodiment, do benefit to the performance that promotes whole fuel cell car, especially when the pressure to hydrogen storage system is 70Mpa, still can keep good security performance.

In the description of the present application, it is to 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," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

In the description of the present application, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present application, "a plurality" means two or more.

In the description of the present application, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact not directly but via another feature therebetween.

In the description of the present application, the first feature being "on," "above" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. 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: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A high pressure cylinder valve (100), comprising:

the valve body (7) is suitable for being installed at the opening of the gas cylinder, the end, located outside the opening, of the valve body (7) is provided with a plug connector (3), and the valve body (7) is provided with a line passing channel;

the sensor shell assembly is mounted on the valve body (7), and a first end of the sensor shell assembly extends into the gas cylinder;

the temperature sensing element (4) is installed in the first end of the sensor shell assembly, and the temperature sensing element (4) is connected with the plug interface (3) through a connecting line (5) arranged in the wire passing channel.

2. The high pressure cylinder valve (100) of claim 1, wherein the sensor housing assembly comprises a sensor housing (1) and a sensor holder (2), the sensor housing (1) being mounted to the valve body (7) and the sensor housing (1) having an axially extending mounting cavity, the sensor holder (2) being mounted within the mounting cavity, the temperature sensing element (4) being mounted to the sensor holder (2) and located within the gas cylinder.

3. The high-pressure cylinder valve (100) according to claim 2, wherein the sensor housing (1) comprises a mounting section (11) and an extension section (13), the mounting section (11) and the extension section (13) are sequentially connected in an axial direction, the mounting section (11) is connected with the valve body (7), the extension section (13) extends into the gas cylinder, the mounting cavity penetrates through the mounting section (11) and extends into the extension section (13), and the temperature sensing element (4) is located in the extension section (13).

4. The high pressure cylinder valve (100) of claim 3, wherein the outer peripheral wall of the mounting section (11) is in sealing engagement with the inner peripheral wall of the valve body (7).

5. The high-pressure cylinder valve (100) according to claim 4, wherein the outer peripheral wall of the mounting section (11) is provided with a sealing groove, a sealing ring (111) is mounted in the sealing groove, and the sealing ring (111) is pressed against the inner peripheral wall of the valve body (7).

6. The high pressure cylinder valve (100) of claim 3, further comprising: the heat protection support (6), the radial dimension of erection segment (11) is greater than the radial dimension of extension section (13), heat protection support (6) cover is located outside extension section (13), just heat protection support (6) with the terminal surface of erection segment (11) links to each other.

7. The high-pressure cylinder valve (100) according to claim 6, characterized in that the inner circumferential wall of the heat shield support (6) is arranged spaced apart from the outer circumferential wall of the extension (13).

8. The high-pressure cylinder valve (100) according to claim 1, wherein a circuit board (31) is disposed at the socket (3), the connecting wires (5) are electrically connected to the circuit board (31), and the connecting wires (5) are arranged in a U-shape at the circuit board (31).

9. The high-pressure cylinder valve (100) according to claim 2, wherein the first end of the sensor support (2) extends into the mounting cavity and is spaced apart from the end surface of the mounting cavity, the first end of the sensor support (2) is provided with a mounting groove which is open towards the end surface of the mounting cavity, and the temperature sensing element (4) is mounted in the mounting groove and at least partially protrudes out of the mounting groove.

10. A gas cylinder, characterized in that a high-pressure cylinder valve (100) according to any one of claims 1 to 9 is provided.