CN211624838U - Pressure container for vehicle and vehicle with same - Google Patents

Abstract

The utility model discloses a vehicle that is used for pressure vessel of vehicle and has it, a pressure vessel includes for the vehicle: the inner container comprises an inner container body and an opening section, the opening section is connected with the inner container body, and one end of the opening section, which is far away from the inner container body, is opened; the valve seat is sleeved on the opening section; the valve extends into the valve seat from one end far away from the inner container and is connected with the valve seat, and at least part of the opening section is clamped between the valve and the valve seat. According to the utility model discloses a pressure vessel for vehicle, simple structure, the simple to operate of valve seat, valve, structural strength is high, and sealed effectual, sealed simple reliable.

Description

Pressure container for vehicle and vehicle with same

Technical Field

The utility model belongs to the technical field of the vehicle manufacturing, particularly, relate to a vehicle that is used for pressure vessel of vehicle and has it.

Background

Since the energy storage density of the gaseous fuel is low, the storage amount or the storage pressure needs to be increased to secure a long travel distance. In the case of a vehicle, the space for installing the gas storage system is limited, and there is a limit in increasing the size of the storage tank. Therefore, tank technology is critical to the safe storage of high pressure gases.

In the related art, the fuel gas storage tank is expensive, the fatigue resistance is low, and there may be safety problems such as hydrogen leakage and deterioration of the permeation resistance. In particular, the tightness of the device is not good due to the difference in material between the metal valve seat and the plastic body for mounting the external valve. Generally, the metal valve seat is embedded into the inner container before the plastic inner container is molded, although the structure can enable the inner container and the metal valve seat to be tightly connected, and certain air tightness is guaranteed. However, the structure makes the inner container complex to form, the inner container is difficult to process, and the joint of the plastic inner container and the metal valve seat is easy to have defects. In addition, due to the complex structure, under the action of high-pressure load (for example, 70MPa), stress concentration can be generated at the joint of the plastic liner and the metal valve seat; under low-temperature cyclic load, the joint of the plastic liner and the metal valve seat is easy to generate fatigue failure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. For this reason, an object of the present invention is to provide a pressure vessel for a vehicle, which is simple in structure, easy to install, and capable of ensuring good sealing performance.

According to the utility model discloses a pressure vessel for vehicle, include: the inner container comprises an inner container body and an opening section, the opening section is connected with the inner container body, and one end of the opening section, which is far away from the inner container body, is opened; the valve seat is sleeved on the opening section; the valve extends into the valve seat from one end far away from the inner container and is connected with the valve seat, and at least part of the opening section is clamped between the valve and the valve seat.

According to the utility model discloses a pressure vessel for vehicle, simple structure, the simple to operate of valve seat, valve, structural strength is high, and sealed effectual, sealed simple reliable.

According to the utility model discloses a pressure vessel for vehicle, the opening section with valve seat joint links to each other.

According to the utility model discloses a pressure vessel for vehicle, the opening section be equipped with to the extension that the open direction of inner bag extends, being close to of valve seat the one end of opening section is equipped with the mounting groove, the extension is followed the opening direction of inner bag stretches into the mounting groove.

According to the utility model discloses a pressure vessel for vehicle, the internal surface of valve seat with the internal surface parallel and level of opening section, the inner of extension section with the inner of opening section is followed the radial spaced apart setting of opening section.

According to the utility model discloses a pressure vessel for vehicle, the lateral wall of recess is to being close to the direction of inner bag extends in order to form and compresses tightly the section, the surface and the part of opening section the inner bag body ends compress tightly the section.

According to the utility model discloses a pressure vessel for vehicle, compress tightly the section and include the edge the vertical section that the opening direction of inner bag extends and the bending segment of outwards buckling, vertical section ends to the surface of opening section, the bending segment ends to at least part the inner bag body.

According to the utility model discloses a pressure vessel for vehicle still includes the sealing ring, the sealing ring cover is established outside the valve, just the sealing ring clamp is established the opening section with between the valve.

According to the utility model discloses a pressure vessel for vehicle, the outer peripheral face of valve is equipped with the seal groove, the sealing ring is installed in the seal groove, and at least part the sealing ring inwards bulge in the outer peripheral face of valve.

According to the utility model discloses a pressure vessel for vehicle of an embodiment still includes: the winding layer wraps the inner container body, and at least part of the valve seat is wrapped by the winding layer.

The utility model also provides a vehicle, include according to the utility model discloses any one embodiment be used for the pressure vessel of vehicle

The vehicle and the pressure vessel for a vehicle described above have the same advantages over the prior art and are not described in detail herein.

Additional aspects and advantages of the invention 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 invention.

Drawings

The above and/or additional aspects and advantages of the present invention 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 cross-sectional view of a pressure vessel for a vehicle according to the present invention;

fig. 2 is an exploded view of a pressure vessel for a vehicle according to the present invention;

fig. 3 is an exploded cross-sectional view of a pressure vessel for a vehicle according to the present invention;

fig. 4 is a cross-sectional view of a pressure vessel for a vehicle according to the present invention (showing the wrapping layers).

Reference numerals:

a pressure vessel 100;

an inner container 1; a liner body 11; an opening section 12; an extension segment 121;

a valve seat 2; a mounting groove 21; a pressing section 22; a vertical section 221; a bending section 222;

a valve 3; a seal groove 31;

a seal ring 4;

the layers 5 are wound.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like 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 invention, and should not be construed as limiting the present invention.

A pressure vessel 100 for a vehicle and a vehicle having the same according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.

As shown in fig. 1 to 4, a pressure vessel 100 for a vehicle according to the present invention includes: inner container 1, valve seat 2 and valve 3.

The liner 1 is a liner of the pressure vessel 100, which prevents gas from leaking or permeating from an inner cavity of the pressure vessel 100 to the outside, in some examples, the liner 1 is injection molded by using a plastic material, the liner 1 includes a liner body 11 and an opening section 12, the liner body 11 is used for storing and containing various fluids under pressure, such as hydrogen, oxygen, natural gas, nitrogen, propane, methane or other fuels, the opening section 12 is connected with the liner body 11, and one end of the opening section 12, which is far away from the liner body 11, is open, the fuel stored in the liner body 11 can flow out from the open end of the opening section 12, the valve 3 is connected with the open end of the opening section 12, the valve 3 is a passage between the inner cavity of the pressure vessel 100 and the outside, so as to open and close the open end of the opening section 12, and the valve 3 can be formed by processing an aluminum alloy.

The valve 3 is arranged on the opening section 12 through the valve seat 2, the valve seat 2 is connected with the opening section 12, the strength of the liner 1 at the opening section 12 is enhanced, and the valve seat 2 can be formed by processing aluminum alloy materials.

Specifically, the valve seat 2 is sleeved on the opening section 12, so as to install the valve seat 2 on the opening section 12, the valve 3 extends into the valve seat 2 from one end far away from the liner 1 and is connected with the valve seat 2, in some examples, the valve 3 can be in threaded connection with the valve seat 2, for example, the valve seat 2 is provided with an internal thread, the part of the valve 3 extending into the valve seat 2 is provided with an external thread, the valve seat 2 is connected with the valve 3 by screwing the valve 3 into the valve seat 2, at least part of the opening section 12 is clamped between the valve 3 and the valve seat 2, therefore, the opening section 12 is connected between the valve 3 and the valve seat 2, so that the opening section 12 is connected with the valve 3 and the valve seat 2, the connection strength of the valve 3 and the opening section 12 is enhanced, the sealing performance of the valve 3 and the opening section 12 is enhanced, and the structural strength of the pressure container 100 at the opening section 12 is.

According to the utility model discloses a pressure vessel 100 for vehicle, simple structure, valve seat 2, valve 3's simple to operate, structural strength is high, and sealed effectual, sealed simple reliable.

Some embodiments of a pressure vessel 100 for a vehicle according to the present invention are described below with reference to fig. 1-4.

In some embodiments, as shown in fig. 1 and 4, the opening section 12 is snap-fit connected to the valve seat 2, and the opening section 12 is snap-fit connected to the valve seat 2, so as to increase the connection strength between the opening section 12 and the valve seat 2.

In some embodiments, as shown in fig. 1 and 4, the opening section 12 is provided with an extension section 121 extending in the opening direction of the inner container 1, one end of the valve seat 2 close to the opening section 12 is provided with a mounting groove 21, and the extension section 121 extends into the mounting groove 21 along the opening direction of the inner container 1, so that the opening section 12 can be connected with the valve seat 2 in a clamping manner, the size of the extension section 121 is consistent with that of the mounting groove 21, so that the opening section 12 is accurately matched with the valve seat 2 to radially constrain the opening section 12, which facilitates the connection between the valve seat 2 and the opening section 12, and facilitates the extension of the valve 3 into the valve seat 2 and the pressing of the opening section 12. The opening section 12 is connected with the valve seat 2 through the mounting groove 21 and the extension section 121 in a matched clamping mode, and the valve seat is convenient to mount and does not need to be simultaneously injection-molded.

In some embodiments, as shown in fig. 1 and 4, the inner surface of the valve seat 2 is flush with the inner surface of the opening section 12, so that the valve 3 is conveniently protruded into the valve seat 2 and the opening section 12, and airtightness of the valve 3, the valve seat 2, and the opening section 12 is ensured, the inner end of the extension section 121 is spaced apart from the inner end of the opening section 12 in the radial direction of the opening section 12, so that the inner surface of the opening section 12 is flush with the inner surface of the valve seat 2 in the case where the extension section 121 is provided, and the extension section 121 of such a structure is conveniently protruded into the mounting groove 21, and in some examples, the outer surface of the extension section 121 is flush with the outer surface of the opening section 12. The term "inner" refers to a direction close to the axis of the opening section 12, and the term "outer" refers to a direction away from the axis of the opening section 12.

In some embodiments, the outer sidewall of the groove extends in a direction approaching the inner container 1 to form the pressing section 22, and the outer surface of the opening section 12 and a part of the inner container body 11 abuts against the pressing section 22. The pressing section 22 is arranged to press against the opening section 12 and at least part of the inner container body 11, the shape of the joint of the inner container body 11 and the opening section 12 can be matched with the profile of the pressing section 22 to ensure that the inner container 1 is completely contacted with the valve seat 2, so that the joint of the inner container body 11 and the opening section 12 keeps the shape, and the problem of poor air tightness caused by the deformation of the joint is prevented, wherein the inner part is the direction close to the axis of the opening section 12, and the outer part is the direction far away from the axis of the opening section 12.

In some embodiments, the pressing section 22 includes a vertical section 221 extending along the opening direction of the liner 1 and a bending section 222 bending outward, the vertical section 221 abuts against the outer surface of the opening section 12, the bending section 222 abuts against at least a part of the liner body 11, and the shape of the pressing section 22 is set according to the shape of the connection between the opening section 12 and the liner body 11, so that the pressing section 22 can better press the liner 1, and the shape of the liner 1 at the opening section 12 is ensured, so as to ensure the air tightness of the connection.

The valve seat 2 is provided with the mounting groove 21 connected with the extension section 121 of the opening section 12 in a clamping manner, and the inner container body 11 and the opening section 12 are both supported against the pressing section 22, so that the valve seat 2 and the inner container 1 are accurately positioned and firmly connected when being mounted.

The surfaces of the valve seat 2 contacting the inner container 1 are firmly bonded by glue, for example, the extension section 121 extends into the mounting groove 21 and the extension section 121 is bonded to the peripheral wall of the mounting groove 21, the inner surface of the vertical section 221 is bonded to the opening section 12, and the inner surface of the bending section 222 is bonded to the inner container body 11.

In some embodiments, the pressure vessel 100 further includes a sealing ring 4, the sealing ring 4 is sleeved outside the valve 3, and the sealing ring 4 is clamped between the opening section 12 and the valve 3, and the sealing ring 4 can prevent gas from leaking through a gap between the opening section 12 and the valve 3 and a gap between the valve seat 2 and the valve 3. The sealing ring 4 can be formed by PU material.

Because the sealing ring 4 is clamped between the opening section 12 and the valve 3, the valve 3 is also sleeved with the valve seat 2, the sealing ring 4 can enable the contact surfaces of the valve 3, the valve seat 2 and the opening section 12 at the position to be more compact, and the sealing of the valve seat 2 and the opening section 12 and the sealing of the opening section 12 and the valve 3 can be simultaneously realized by the arrangement of the sealing ring 4

In some embodiments, as shown in fig. 1 to 4, a sealing groove 31 is formed on an outer circumferential surface of the valve 3, the sealing ring 4 is installed in the sealing groove 31, at least a portion of the sealing ring 4 protrudes inward from the outer circumferential surface of the valve 3, and the sealing groove 31 is used for positioning the sealing ring 4, so that the sealing ring 4 does not move or fall off along an axial direction of the valve 3, and the sealing ring 4 is stably sleeved on the valve 3 to enhance air tightness at an installation position of the sealing ring 4. In other embodiments, the sealing groove 31 may be further disposed on the inner circumferential surface of the opening section 12, and the sealing ring 4 is mounted on the sealing groove 31 and protrudes from the inner circumferential surface of the opening section 12.

In some examples, a sealing gasket may be further included, and the sealing gasket cooperates with the sealing ring 4 to seal the sealing gasket, so that gas is prevented from leaking through the gap between the opening section 12 and the valve 3 and the gap between the valve seat 2 and the valve 3.

In some embodiments, as shown in fig. 4, the pressure vessel 100 further comprises: winding layer 5, winding layer 5 parcel is in outside inner bag body 11, just winding layer 5 parcel at least part valve seat 2, winding layer 5 twines can restrict relative displacement between inner bag 1 and the valve seat 2 on valve seat 2 and inner bag body 11, and in some examples, winding layer 5 twines outside the compact structure of valve seat 2.

The vehicle according to the present invention comprises a pressure vessel 100 according to any of the embodiments of the present invention.

According to the utility model discloses a vehicle is through setting up according to the utility model discloses a pressure vessel 100 thereby has corresponding advantage, no longer gives unnecessary details here.

In the description of the present invention, 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, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 present invention. 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 invention 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 invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A pressure vessel for a vehicle, comprising:

the inner container comprises an inner container body and an opening section, the opening section is connected with the inner container body, and one end of the opening section, which is far away from the inner container body, is opened;

the valve seat is sleeved on the opening section;

the valve extends into the valve seat from one end far away from the inner container and is connected with the valve seat, and at least part of the opening section is clamped between the valve and the valve seat.

2. The pressure vessel for a vehicle of claim 1, wherein said open section is snap-fit to said valve seat.

3. The pressure vessel for vehicle as claimed in claim 2, wherein the opening section is provided with an extension section extending towards the opening direction of the inner container, one end of the valve seat close to the opening section is provided with an installation groove, and the extension section extends into the installation groove along the opening direction of the inner container.

4. The pressure vessel for a vehicle according to claim 3, wherein an inner surface of said valve seat is flush with an inner surface of said opening section, and an inner end of said extension section is disposed spaced apart from an inner end of said opening section in a radial direction of said opening section.

5. The pressure vessel for a vehicle according to claim 3, wherein an outer side wall of said mounting groove extends in a direction approaching said inner container to form a pressing section, and an outer surface of said opening section and a part of said inner container body abut against said pressing section.

6. The pressure vessel for vehicle of claim 5, wherein the pressing section comprises a vertical section extending along the opening direction of the inner container and an outwardly bent bending section, the vertical section abuts against the outer surface of the opening section, and the bending section abuts against at least part of the inner container body.

7. The pressure vessel for a vehicle of claim 1, further comprising a sealing ring, wherein said sealing ring is sleeved outside said valve, and said sealing ring is sandwiched between said opening section and said valve.

8. The pressure vessel for a vehicle of claim 7, wherein an outer peripheral surface of said valve is provided with a seal groove, said seal ring is mounted in said seal groove, and at least a portion of said seal ring protrudes inwardly beyond an outer peripheral surface of said valve.

9. The pressure vessel for a vehicle according to claim 1, further comprising: the winding layer wraps the inner container body, and at least part of the valve seat is wrapped by the winding layer.

10. A vehicle, characterized in that it comprises a pressure vessel according to any one of claims 1-9.

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