Hydrogen filling port structure, vehicle-mounted hydrogen system and vehicle

Abstract

The utility model discloses a hydrogen filling port structure, a vehicle-mounted hydrogen system and a vehicle, and relates to the field of hydrogen energy automobile technology. The hydrogen filling port structure includes a valve body, a one-way valve assembly, a primary filter element and a secondary filter element, and the valve body is provided with a hydrogen passage, a hydrogen inlet and a hydrogen outlet. The one-way valve assembly is arranged in the hydrogen passage, and the one-way valve assembly is configured to normally cut off the hydrogen passage, and the one-way valve assembly guides the hydrogen passage when hydrogen is filled into the hydrogen inlet. The primary filter element is arranged in the hydrogen passage and is located upstream of the one-way valve assembly, and the secondary filter element is arranged in the hydrogen passage and is located downstream of the one-way valve assembly, and at least one of the primary filter element and the secondary filter element is detachable. By adopting double-stage filtration, the filtering effect is improved, the cleanliness of the filled hydrogen fuel can be improved, the damage and failure of the system pipe valve components and non-metallic seals caused by impurities are reduced, and the leakage problem is improved. And at least one of the primary filter element and the secondary filter element is detachable, which is convenient for subsequent cleaning and maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen energy vehicles, in particular to a hydrogen filling port structure, a vehicle-mounted hydrogen system and a vehicle. Background Art

[0002] Fuel cell hydrogen-powered vehicles use hydrogen or hydrogen-containing substances to react with oxygen in the air in a fuel cell to generate electricity to drive an electric motor, which in turn drives the vehicle. The chemical energy generated by the hydrogen reaction is converted into mechanical energy to propel the vehicle. At present, with the continuous development of new energy vehicles, hydrogen-powered vehicles are gradually becoming an important choice.

[0003] The hydrogen filling port plays a key role in the hydrogen storage system of the fuel cell. When impurities enter the hydrogen storage system from the hydrogen filling port, it will cause the non-metallic seals and valves inside the system to fail, resulting in leakage problems. In the related art, the filtering effect of the hydrogen filling port is poor, and there is room for improvement. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a hydrogenation port structure, which adopts double-stage filtration to improve the filtration effect, and the filter element can be detached to facilitate subsequent cleaning and maintenance.

[0005] The utility model also provides a vehicle-mounted hydrogen system having the above hydrogen filling port structure.

[0006] The utility model also provides a vehicle with the above-mentioned on-board hydrogen system.

[0007] The hydrogenation port structure according to the first aspect of the utility model comprises: a valve body, wherein a hydrogen passage is provided in the valve body, and a hydrogen inlet and a hydrogen outlet communicating with both ends of the hydrogen passage are provided on the valve body; a one-way valve assembly, wherein the one-way valve assembly is arranged in the hydrogen passage, the one-way valve assembly is configured to normally cut off the hydrogen passage, and the one-way valve assembly conducts the hydrogen passage when hydrogen is filled into the hydrogen inlet; a primary filter element, wherein the primary filter element is arranged in the hydrogen passage and is located upstream of the one-way valve assembly; a secondary filter element, wherein the secondary filter element is arranged in the hydrogen passage and is located downstream of the one-way valve assembly; and at least one of the primary filter element and the secondary filter element is detachably arranged.

[0008] According to the hydrogenation port structure of the utility model, by providing a primary filter element and a secondary filter element, a double-stage filtration is adopted to improve the filtration effect and the cleanliness of the hydrogen fuel filled. Thus, the damage and failure of the system pipe valves and non-metallic seals due to impurities can be reduced, and the leakage problem can be improved. In addition, at least one of the primary filter element and the secondary filter element can be detachably arranged, which is convenient for subsequent cleaning and maintenance, so that the primary filter element and / or the secondary filter element maintain better filtration performance and extend the service life.

[0009] In some embodiments, the valve body includes: a front valve body, one end of the front valve body forms the hydrogen inlet, and the primary filter element is arranged in the front valve body; a middle valve body, the middle valve body is connected to the other end of the front valve body, and the one-way valve assembly is arranged in the middle valve body; a rear valve body, the rear valve body is connected to the middle valve body, one end of the rear valve body away from the front valve body forms the hydrogen outlet, and the secondary filter element is arranged in the rear valve body.

[0010] In some embodiments, the middle valve body is detachably connected to the front valve body so that the primary filter element can be removed when disassembled.

[0011] In some embodiments, the middle valve body is detachably connected to the rear valve body so that the secondary filter element can be removed when disassembled.

[0012] In some embodiments, the one-way valve assembly includes: a one-way valve seat, which is disposed in the hydrogen passage; a one-way valve core, which is movably disposed in the hydrogen passage and is located on the side of the one-way valve seat facing the hydrogen inlet, and the one-way valve core abuts against the primary filter element; and a one-way elastic member, which is connected between the one-way valve core and the one-way valve seat.

[0013] In some embodiments, the hydrogenation port structure further includes: a limiting elastic member, one end of which is connected to the one-way valve seat, and the other end of which is connected to the secondary filter element.

[0014] In some embodiments, the hydrogenation port structure further includes: a diverter, which is disposed in the hydrogenation channel, downstream of the one-way valve assembly and upstream of the secondary filter element, and the diverter is used to change the axial diffusion of the airflow along the hydrogenation port structure into radial diffusion along the hydrogenation port structure.

[0015] In some embodiments, the first-stage filter element includes a first filter element body and a first filter screen covering the first filter element body, the first filter element body is constructed as a cone, and the conical surface of the first filter element body is provided with a filter hole for air flow to pass through; the second-stage filter element includes a second filter element body and a second filter screen covering the second filter element body, the second filter element body is provided with a cavity open to the hydrogen outlet, and the peripheral wall of the second filter element body is provided with a through hole, and the through hole is connected to the cavity.

[0016] According to the second aspect of the utility model, the vehicle-mounted hydrogen system includes: a gas storage bottle and a hydrogen filling panel; the reinforced panel is provided with a hydrogen filling port structure according to the first aspect of the utility model, and the hydrogen filling port structure is connected to the gas storage bottle.

[0017] According to the vehicle-mounted hydrogen system of the embodiment of the utility model, by setting the hydrogen filling port structure of the first aspect of the utility model, the cleanliness of the filled hydrogen fuel is improved, thereby reducing the damage and failure of the system gas storage bottle, pipe valve parts and non-metallic sealing parts due to impurities, improving the leakage problem, and extending the service life of the vehicle-mounted hydrogen system.

[0018] The vehicle according to the third aspect of the utility model comprises: a vehicle body longitudinal beam; and the on-board hydrogen system according to the second aspect of the utility model, wherein the on-board hydrogen system is installed on one side of the vehicle body longitudinal beam.

[0019] According to the vehicle of the utility model, by installing the on-board hydrogen system on one side of the vehicle body longitudinal beam, the space utilization rate of the on-board hydrogen system in the whole vehicle can be optimized, the layout space of the whole vehicle can be saved, the difficulty of the whole vehicle layout can be simplified, and the foundation can be laid for the diversified layout forms of the whole vehicle.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of a hydrogenation port structure according to an embodiment of the utility model;

[0022] Figure 2 This is a structural exploded view of a hydrogenation panel and a protective housing according to an embodiment of the utility model;

[0023] Figure 3 It is a schematic structural diagram of a vehicle-mounted hydrogen system and a vehicle body longitudinal beam according to an embodiment of the utility model.

[0024] Reference numerals:

[0025] On-board hydrogen system 1000;

[0026] Hydrogenation port structure 100;

[0027] Valve body 1; hydrogen passage 1a; hydrogen inlet 1b; hydrogen outlet 1c; front valve body 11; middle valve body 12; rear valve body 13;

[0028] One-way valve assembly 2; one-way valve seat 21; one-way valve core 22; one-way elastic member 23; one-way valve housing 24;

[0029] Primary filter 3;

[0030] Secondary filter element 4;

[0031] Limiting elastic member 5;

[0032] Diverter 6;

[0033] Fixing nut 7;

[0034] A first sealing ring 81; a second sealing ring 82; a third sealing ring 83; a fourth sealing ring 84; a fifth sealing ring 85;

[0035] Hydrogenation panel 200; protective housing 300; cantilever rod 400;

[0036] Gas cylinder 500;

[0037] Body longitudinal beam 2000. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0039] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0040] The hydrogenation port structure 100 of the first embodiment of the utility model will be described below with reference to the accompanying drawings.

[0041] According to the hydrogenation port structure 100 of the first embodiment of the utility model, Figure 1 As shown, the hydrogenation port structure 100 includes: a valve body 1, a one-way valve assembly 2, a primary filter element 3 and a secondary filter element 4. A hydrogen passage 1a is provided in the valve body 1, and a hydrogen inlet 1b and a hydrogen outlet 1c connected to both ends of the hydrogen passage 1a are provided on the valve body 1. The one-way valve assembly 2 is provided in the hydrogen passage 1a, and the one-way valve assembly 2 is configured to normally cut off the hydrogen passage 1a, and when hydrogen is charged into the hydrogen inlet 1b, the one-way valve assembly 2 guides the hydrogen passage 1a.

[0042] The hydrogenation port structure 100 of the embodiment of the utility model is used for filling hydrogen fuel. The valve body 1 is the main body of the hydrogenation port structure 100. A hydrogen passage 1a for hydrogen flow is formed inside the hydrogenation port structure 100. A hydrogen inlet 1b and a hydrogen outlet 1c connected to the hydrogen passage 1a are formed at the axial ends of the valve body 1, respectively. When filling hydrogen fuel, hydrogen flows from the hydrogen inlet 1b along the hydrogen passage 1a to the hydrogen outlet 1c, and is stored by the hydrogen storage system after flowing out of the hydrogen outlet 1c. A one-way valve assembly 2 is provided in the hydrogen passage 1a. When hydrogen is filled, the one-way valve assembly 2 conducts the hydrogen passage 1a; when hydrogen filling stops, the one-way valve assembly 2 cuts off the hydrogen passage 1a to prevent hydrogen from leaking from the hydrogen inlet 1b and prevent gas backflow.

[0043] The hydrogenation port structure 100 of the embodiment of the utility model adopts double-stage filtration, the primary filter element 3 is arranged in the hydrogen passage 1a and located upstream of the one-way valve assembly 2, and the secondary filter element 4 is arranged in the hydrogen passage 1a and located downstream of the one-way valve assembly 2. The hydrogen flows through the primary filter element 3 and the secondary filter element 4 in sequence, and then flows out from the hydrogen outlet 1c to be stored by the hydrogen storage system.

[0044] The hydrogen filling port structure 100 adopts double-stage filtration to improve the filtration effect and the cleanliness of the hydrogen fuel, thereby reducing the damage and failure of the system pipe valves and non-metallic seals due to impurities, improving the leakage problem and extending the service life.

[0045] At least one of the primary filter element 3 and the secondary filter element 4 is detachable, which is convenient for subsequent cleaning and maintenance. When the primary filter element 3 and / or the secondary filter element 4 is damaged or blocked, it is convenient to remove the primary filter element 3 and / or the secondary filter element 4 for cleaning, repair or replacement, so that the primary filter element 3 and / or the secondary filter element 4 maintains better filtering performance and prolongs the service life.

[0046] According to the hydrogenation port structure 100 of the embodiment of the utility model, by providing the primary filter element 3 and the secondary filter element 4, a double-stage filtration is adopted to improve the filtration effect, and the cleanliness of the filled hydrogen fuel can be improved. Thus, the damage and failure of the system pipe valves and non-metallic seals caused by impurities can be reduced, and the leakage problem can be improved. In addition, at least one of the primary filter element 3 and the secondary filter element 4 can be detachably arranged to facilitate subsequent cleaning and maintenance, so that the primary filter element 3 and / or the secondary filter element 4 maintain better filtration performance and extend the service life.

[0047] In some embodiments of the present invention, Figure 1As shown, the valve body 1 includes: a front valve body 11, a middle valve body 12 and a rear valve body 13. One end of the front valve body 11 forms a hydrogen inlet 1b, and the first-stage filter element 3 is arranged in the front valve body 11; the middle valve body 12 is connected to the other end of the front valve body 11, and the one-way valve assembly 2 is arranged in the middle valve body 12; the rear valve body 13 is connected to the middle valve body 12, and the end of the rear valve body 13 away from the front valve body 11 forms a hydrogen outlet 1c, and the second-stage filter element 4 is arranged in the rear valve body 13.

[0048] The valve body 1 includes three parts. The front valve body 11 is connected to the middle valve body 12, and the middle valve body 12 is connected to the rear valve body 13. A hydrogen inlet 1b is formed at one axial end of the front valve body 11 for the entry of hydrogen. The primary filter element 3 is also arranged in the front valve body 11. The hydrogen is filtered once before passing through the one-way valve assembly 2, thereby improving the cleanliness of the hydrogen passing through the one-way valve assembly 2, reducing the blockage or wear of the one-way valve assembly 2, and extending the service life of the one-way valve assembly 2. The rear valve body 13 is connected to the middle valve body 12, and a hydrogen outlet 1c is formed at the end of the rear valve body 13 away from the front valve body 11 for the output of hydrogen. The hydrogen after passing through the one-way valve assembly 2 is filtered once more to ensure the purity of the hydrogen.

[0049] By configuring the valve body 1 to be divided into three parts, configuring the primary filter element 3 in the front valve body 11, configuring the secondary filter element 4 in the rear valve body 13, and configuring the primary filter element 3 and the secondary filter element 4 separately, one of the primary filter element 3 and the secondary filter element 4 can be removed separately, which is convenient for operation and helps to facilitate maintenance and replacement.

[0050] In some embodiments of the present invention, Figure 1 As shown, the inner wall of the front valve body 11 is provided with a first annular groove, in which a first sealing ring 81 is installed. When the hydrogenation gun is inserted into the valve body 1 for hydrogen fuel filling, the first sealing ring 81 and the hydrogenation gun form a radial inner circumferential static seal to prevent air leakage.

[0051] In some embodiments of the present invention, Figure 1 As shown, the primary filter element 3 and the front valve body 11 are sealed and connected via a second sealing ring 82 to achieve radial peripheral static sealing, improve the sealing performance of the connection, and prevent air leakage.

[0052] In some embodiments of the present invention, Figure 1 As shown, a fixing nut 7 is provided on the middle section of the valve body 11 , and a fixing nut 7 is provided on the middle valve body 12 . The fixing nut 7 is used to fix and install the hydrogenation port structure 100 .

[0053] In some embodiments of the present invention, the middle valve body 12 is detachably connected to the front valve body 11 so that the primary filter element 3 can be detached when disassembled.

[0054] When the primary filter element 3 needs to be maintained or replaced, the front valve body 11 is removed relative to the middle valve body 12, and the primary filter element 3 can be removed from the front valve body 11. This design makes it more convenient to maintain and replace the primary filter element 3, reduces maintenance time, and improves disassembly and assembly efficiency.

[0055] In some embodiments of the present invention, the middle valve body 12 is detachably connected to the rear valve body 13 so that the secondary filter element 4 can be detached when disassembled.

[0056] When the secondary filter element 4 needs to be maintained or replaced, the rear valve body 13 is removed relative to the middle valve body 12, and the secondary filter element 4 can be removed from the rear valve body 13. This design makes it more convenient to maintain and replace the secondary filter element 4, reduces maintenance time, and improves disassembly and assembly efficiency.

[0057] In some embodiments of the present invention, the middle valve body 12 is threadedly connected to the front valve body 11 and the rear valve body 13 .

[0058] The front valve body 11 and the middle valve body 12 are threadedly matched, and the rear valve body 13 and the middle valve body 12 are threadedly matched. The matching reliability of the middle valve body 12 with the front valve body 11 and the rear valve body 13 is strong and easy to disassemble, making it more convenient to maintain and replace the first-stage filter element 3 and the second-stage filter element 4, and improving the disassembly and assembly efficiency.

[0059] In some specific embodiments of the utility model, the inner wall of the front valve body 11 is provided with an internal thread, the outer wall of the middle valve body 12 near the end of the front valve body 11 is provided with an external thread, and the middle valve body 12 is threadedly connected to the front valve body 11. The outer wall of the rear valve body 13 is provided with an external thread, the inner wall of the middle valve body 12 near the end of the rear valve body 13 is provided with an internal thread, and the middle valve body 12 is threadedly connected to the rear valve body 13.

[0060] In some embodiments of the present invention, Figure 1 As shown, the front valve body 11 and the middle valve body 12 are connected by a fourth sealing ring 84 before the threaded fitting, so as to achieve radial peripheral static sealing to prevent air leakage; the rear valve body 13 and the middle valve body 12 are connected by a fifth sealing ring 85 before the threaded fitting, so as to achieve radial peripheral static sealing to prevent air leakage.

[0061] The valve body 1 of the embodiment of the utility model has a simple structure and reduces the production cost; the installation and matching of the front valve body 11, the middle valve body 12 and the rear valve body 13 are reliable, and the installation leakage points can be reduced, the probability of leakage is reduced, and the safety of the hydrogenation port structure 100 is improved.

[0062] In some embodiments of the present invention, Figure 1As shown, the one-way valve assembly 2 includes: a one-way valve seat 21, a one-way valve core 22 and a one-way elastic member 23. The one-way valve seat 21 is arranged in the hydrogen passage 1a. The one-way valve core 22 is movably arranged in the hydrogen passage 1a and is located on the side of the one-way valve seat 21 facing the hydrogen inlet 1b. The one-way elastic member 23 is connected between the one-way valve core 22 and the one-way valve seat 21.

[0063] The one-way valve seat 21 is arranged in the middle valve body 12 and connected to the middle valve body 12. The one-way valve seat 21 supports the one-way valve core 22 and the one-way elastic member 23. The one-way valve core 22 and the one-way elastic member 23 are both installed on the one-way valve seat 21. The one-way elastic member 23 is connected between the one-way valve core 22 and the one-way valve seat 21. Under normal conditions, the one-way elastic member 23 applies a force to the one-way valve core 22 in the direction of the hydrogen inlet 1b, and the one-way valve core 22 cuts off the hydrogen passage 1a to prevent leakage.

[0064] When hydrogen is filled, under the pressure of high-pressure hydrogen, the hydrogen pushes the one-way valve core 22 to overcome the elastic force of the one-way elastic member 23, pushing the one-way valve core 22 to move toward the direction of the hydrogen outlet 1c, so as to open the hydrogen passage 1a, and the hydrogen can flow to the hydrogen outlet 1c through the hydrogen passage 1a.

[0065] When hydrogen filling stops, the hydrogen in the hydrogen passage 1a is instantly discharged from the discharge hole of the hydrogen filling gun, and the one-way valve core 22 moves toward the hydrogen inlet 1b under the elastic force of the one-way elastic member 23 and the pressure of the hydrogen at the hydrogen outlet 1c, thereby cutting off the hydrogen passage 1a.

[0066] In some embodiments of the present invention, Figure 1 As shown, the one-way valve assembly 2 also includes a one-way valve shell 24, which is installed on the middle valve body 12, and the one-way valve shell 24 and the one-way valve seat 21 are fixedly connected, and the outer wall of the one-way valve shell 24 and the inner wall of the middle valve body 12 are tightly fitted; when the front valve body 11 and the middle valve body 12 are connected, the outer wall of the one-way valve shell 24 is also tightly fitted with the inner wall of the front valve body 11.

[0067] The one-way valve housing 24 is radially spaced from the one-way valve seat 21 to form a portion of the hydrogen passage 1a between the inside of the one-way valve housing 24 and the one-way valve seat 21. The one-way valve core 22 abuts against the one-way valve housing 24 to seal the inside of the one-way valve housing 24, thereby cutting off the hydrogen passage 1a.

[0068] In some embodiments of the present invention, Figure 1 As shown, the one-way valve core 22 abuts against the primary filter core 3 .

[0069] The first-stage filter element 3 is arranged upstream of the one-way valve assembly 2, and the one-way valve housing 24 is abutted against the first-stage filter element 3. The stability of the one-way valve core 22 abutting only on the one-way valve housing 24 is poor. Therefore, the one-way valve core 22 is also abutted against the first-stage filter element 3. The one-way valve core 22 stably cuts off the hydrogen passage 1a, thereby improving the working reliability of the one-way valve assembly 2.

[0070] In some embodiments of the present invention, Figure 1 As shown, the one-way valve housing 24, the primary filter element 3 and the one-way valve core 22 are sealed and connected via a third sealing ring 83, which can improve the sealing of the connection and avoid air leakage.

[0071] In some embodiments of the present invention, Figure 1 As shown, the hydrogenation port structure 100 further includes: a limiting elastic member 5 , one end of the limiting elastic member 5 is connected to the one-way valve seat 21 , and the other end is connected to the secondary filter element 4 .

[0072] After the middle valve body 12 and the rear valve body 13 are connected, the secondary filter element 4 installed in the rear valve body 13 is pressed against the one-way valve assembly 2 installed in the middle valve body 12 through the limiting elastic member 5, thereby limiting the secondary filter element 4 and improving the installation stability of the secondary filter element 4.

[0073] In some embodiments of the present invention, Figure 1 As shown, the hydrogenation port structure 100 also includes: a diverter 6, which is arranged in the hydrogenation channel 1a, downstream of the one-way valve assembly 2 and upstream of the secondary filter element 4, and the diverter 6 is used to change the axial diffusion of the gas flow along the hydrogenation port structure 100 to the radial diffusion along the hydrogenation port structure 100.

[0074] The flow direction of hydrogen is changed by setting the flow divider 6 to prevent the airflow from directly blowing onto the secondary filter element 4, thereby reducing the dynamic impact of the airflow on the secondary filter element 4 and extending the service life of the secondary filter element 4.

[0075] In some embodiments of the present invention, the primary filter element 3 includes a first filter element body and a first filter screen covering the first filter element body. The first filter element body is constructed as a cone, and filter holes for air flow to pass through are opened on the cone surface of the first filter element body.

[0076] The conical surface of the first filter element body abuts against the primary filter element 3 to form an annular line seal. Compared with the surface seal, the sealing strength of the line seal is better.

[0077] In some embodiments of the present invention, the secondary filter element 4 includes a second filter element body and a second filter screen covering the second filter element body, a cavity open to the hydrogen outlet 1c is provided inside the second filter element body, and a through hole for air flow to pass through is provided on the peripheral wall of the second filter element body, and the through hole and the cavity are connected.

[0078] The chamber of the secondary filter element 4 adopts a straight-through structure, with a large diameter and strong flow capacity, which can reduce the pressure difference between the upstream and downstream of the hydrogen permeation channel 1a and improve the filling efficiency. In addition, the secondary filter element 4 has a simple structure, which can reduce the production cost.

[0079] The flow capacity of the hydrogenation port structure 100 of the embodiment of the present utility model can be intuitively obtained by referring to Table 1 below.

[0080] Table 1

[0081]

[0082] The pressure difference between the upstream and downstream of the hydrogen passage 1a of the hydrogen filling port structure 100 of the utility model embodiment is smaller, and the hydrogen flow capacity is stronger, which can improve the hydrogen filling efficiency and save filling time. The problem of insufficient flow capacity due to the large pressure difference of the hydrogen filling port structure 100 is solved, and the pressure difference between the hydrogen filling gun and the hydrogen storage system is reduced when the hydrogen filling is completed.

[0083] The following describes the vehicle-mounted hydrogen storage system 1000 according to the second aspect of the present utility model with reference to the accompanying drawings.

[0084] According to the vehicle-mounted hydrogen system 1000 of the embodiment of the utility model, Figure 2 and Figure 3 As shown, it includes a gas storage cylinder 500 and a hydrogenation panel 200 , on which the hydrogenation panel 200 is provided a hydrogenation port structure 100 according to the first aspect of the utility model, and the hydrogenation port structure 100 is connected to the gas storage cylinder 500 .

[0085] According to the on-board hydrogen system 1000 of the embodiment of the utility model, by setting the hydrogen filling port structure 100 of the first aspect of the utility model, the cleanliness of the filled hydrogen fuel is improved, thereby reducing the damage and failure of the system gas storage bottle 500, pipe valve parts and non-metallic sealing parts due to impurities, improving the leakage problem, and extending the service life of the on-board hydrogen system.

[0086] In some embodiments of the utility model, a protective shell 300 is provided on the hydrogenation panel 200, and the protective shell 300 protects the internal hydrogenation port structure 100, and can prevent external pollutants such as dust and water from entering the protective shell 300, thereby improving the pollution and damage of external impurities to the hydrogenation port structure 100, thereby ensuring the cleanliness during the hydrogen fuel filling process.

[0087] In some embodiments of the utility model, the hydrogenation panel 200 is connected to the vehicle body longitudinal beam 2000 through a cantilever rod 400. The cantilever rod 400 can arrange the hydrogenation panel 200 according to the vehicle body structure, so as to realize the multi-angle, multi-height and multi-directional arrangement of the hydrogenation panel 200 in space, reduce the space occupied, improve the interference with other components, and simplify the arrangement difficulty.

[0088] A vehicle according to a third aspect of the present invention will be described below with reference to the accompanying drawings.

[0089] The vehicle according to the embodiment of the utility model comprises: a vehicle body longitudinal beam 2000 and a vehicle-mounted hydrogen system 1000, wherein the vehicle-mounted hydrogen system 1000 is the vehicle-mounted hydrogen system 1000 according to the second aspect of the utility model, such as Figure 3 As shown, the on-board hydrogen system 1000 is installed on one side of the vehicle body longitudinal beam 2000.

[0090] Specifically, the side of the vehicle body longitudinal beam 2000 includes a vertical surface, and the vehicle-mounted hydrogen system 1000 is installed on the vertical surface of the vehicle body longitudinal beam 2000 to achieve lateral suspension. For example, the vehicle body longitudinal beam 2000 is provided with wheels on both the front and rear sides, and the vehicle-mounted hydrogen system 1000 is connected to the vertical surface of the vehicle body longitudinal beam 2000 and is located between the front and rear wheels, and can occupy the outer space of the vehicle body longitudinal beam 2000, and does not need to occupy the upper compartment space, thereby facilitating the increase of the compartment volume.

[0091] According to the vehicle of the embodiment of the utility model, by installing the on-board hydrogen system 1000 on one side of the vehicle body longitudinal beam 2000, the space utilization rate of the on-board hydrogen system 1000 in the whole vehicle can be optimized, the layout space of the whole vehicle can be saved, the difficulty of the layout of the whole vehicle can be simplified, and the foundation can be laid for the diversified layout forms of the whole vehicle.

[0092] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0093] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0094] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0095] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0097] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hydrogenation port structure, characterized in that: include: A valve body, wherein a hydrogen passage is provided in the valve body, and a hydrogen inlet and a hydrogen outlet communicating with two ends of the hydrogen passage are provided on the valve body; a one-way valve assembly, the one-way valve assembly being arranged in the hydrogen passage, the one-way valve assembly being configured to normally cut off the hydrogen passage, and the one-way valve assembly being configured to open the hydrogen passage when hydrogen is charged into the hydrogen inlet; A primary filter element, the primary filter element is arranged in the hydrogen permeation channel and upstream of the one-way valve assembly; A secondary filter element, the secondary filter element is arranged in the hydrogen permeation channel and downstream of the one-way valve assembly; At least one of the primary filter element and the secondary filter element is detachably arranged.

2. The hydrogenation port structure according to claim 1, characterized in that: The valve body comprises: A front valve body, one end of which forms the hydrogen inlet, and the primary filter element is arranged in the front valve body; A middle valve body, the middle valve body is connected to the other end of the front valve body, and the one-way valve assembly is arranged in the middle valve body; A rear valve body is connected to the middle valve body, one end of the rear valve body away from the front valve body forms the hydrogen outlet, and the secondary filter element is arranged in the rear valve body.

3. The hydrogenation port structure according to claim 2, characterized in that: The middle valve body is detachably connected to the front valve body so that the primary filter element can be detached when disassembled.

4. The hydrogenation port structure according to claim 2, characterized in that: The middle valve body is detachably connected to the rear valve body so that the secondary filter element can be detached when disassembled.

5. The hydrogenation port structure according to claim 2, characterized in that: The one-way valve assembly comprises: a one-way valve seat, the one-way valve seat being arranged in the hydrogen permeation channel; A one-way valve core, the one-way valve core is movably arranged in the hydrogen passage and is located on a side of the one-way valve seat facing the hydrogen inlet, and the one-way valve core abuts against the primary filter element; A one-way elastic member is connected between the one-way valve core and the one-way valve seat.

6. The hydrogenation port structure according to claim 5, characterized in that: Also includes: A limiting elastic member, one end of which is connected to the one-way valve seat, and the other end of which is connected to the secondary filter element.

7. The hydrogenation port structure according to claim 2, characterized in that: Also includes: A flow divider is arranged in the hydrogen permeation channel, downstream of the one-way valve assembly and upstream of the secondary filter element, and is used to change the axial diffusion of the gas flow along the hydrogenation port structure into radial diffusion along the hydrogenation port structure.

8. The hydrogenation port structure according to claim 1, characterized in that: The primary filter element comprises a first filter element body and a first filter screen covering the first filter element body, the first filter element body is configured as a cone, and a filter hole for airflow to pass through is provided on the cone surface of the first filter element body; The secondary filter element comprises a second filter element body and a second filter screen covering the second filter element body, the second filter element body has a cavity opened inside and open toward the hydrogen outlet, and a through hole is opened on the peripheral wall of the second filter element body, and the through hole is connected to the cavity.

9. A vehicle-mounted hydrogen system, characterized in that: include: Gas cylinders; A hydrogenation panel, wherein the hydrogenation panel is provided with a hydrogenation port structure according to any one of claims 1 to 8, and the hydrogenation port structure is connected to the gas storage cylinder.

10. A vehicle, characterized in that: include: body longitudinal beams; According to the on-vehicle hydrogen system of claim 9, the on-vehicle hydrogen system is installed on one side of the vehicle body longitudinal beam.

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