Automobile hydrogen system installation process method

Abstract

The application relates to the technical field of automobile manufacturing, in particular to an automobile hydrogen system installation process method. The automobile hydrogen system installation process method is characterized in that first hydrogen bottle groups and second hydrogen bottle groups are installed in a chassis at intervals, so that the first hydrogen bottle groups and the second hydrogen bottle groups have reserved spaces for installing other structures; and during the installation process, first fastening bolts and second fastening bolts are arranged on the two sides of the first hydrogen bottle groups respectively, the insertion direction of the first fastening bolts is a first direction, the insertion direction of the second fastening bolts is a second direction, the first direction and the second direction are opposite; third fastening bolts and fourth fastening bolts are arranged on the two sides of the second hydrogen bottle groups respectively, the insertion direction of the third fastening bolts is a third direction, the insertion direction of the fourth fastening bolts is a fourth direction, the third direction and the fourth direction are opposite, so that the hydrogen bottle groups are prevented from shaking and separating, the stability of the structure is improved, and the protection effect on the hydrogen bottle groups is improved.

Description

Technical Field

[0001] This invention relates to the field of automobile manufacturing technology, and more specifically, to a process method for installing an automobile hydrogen system. Background Technology

[0002] Hydrogen vehicles, also known as hydrogen fuel cell vehicles, are mainly divided into two categories: hydrogen internal combustion engine vehicles and hydrogen fuel cell vehicles. Hydrogen internal combustion engine vehicles operate on the same principle as internal combustion engines, releasing the chemical energy of reacting gases through combustion and performing work through gas expansion. Hydrogen fuel cell vehicles, on the other hand, generate electricity through the reaction of hydrogen or hydrogen-containing substances with oxygen in the air within a fuel cell, which then powers an electric motor that propels the vehicle.

[0003] However, existing hydrogen fuel cell vehicles suffer from poor stability and low safety. Summary of the Invention

[0004] The present invention aims to provide an installation process for an automotive hydrogen system that improves stability, thereby enhancing the protection of hydrogen cylinders and ultimately improving safety.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] This invention provides a method for installing a hydrogen system in an automobile, comprising:

[0007] Place the first hydrogen cylinder assembly on the rear beam of the chassis;

[0008] The second hydrogen cylinder group is placed on the chassis, so that the first hydrogen cylinder group and the second hydrogen cylinder group are set apart.

[0009] The first set of fastening bolts is used to thread the first hydrogen cylinder assembly and the chassis in the first direction.

[0010] The first hydrogen cylinder assembly and the chassis are threaded together by the second set of fastening bolts along the second direction; wherein the first set of fastening bolts and the second set of fastening bolts are located on opposite sides of the first hydrogen cylinder assembly, and the first direction and the second direction are opposite.

[0011] Connect the second hydrogen cylinder assembly and the chassis threadedly along the third direction using the third set of fastening bolts.

[0012] The second hydrogen cylinder assembly and the chassis are threaded together by the fourth set of fastening bolts along the fourth direction; wherein the third and fourth sets of fastening bolts are located on opposite sides of the second hydrogen cylinder assembly, and the third direction is opposite to the fourth direction.

[0013] In an optional implementation, the automotive hydrogen system installation process further includes:

[0014] Connect one end of the connecting pipe to the first hydrogen cylinder group and the second hydrogen cylinder group.

[0015] Connect the other end of the connecting pipe to the multi-way valve;

[0016] First, turn the pressure sensor clockwise to connect it to the multi-way valve via a thread. Then, turn the pressure sensor counterclockwise. Repeat this process several times to gradually reduce the resistance.

[0017] In an optional implementation, the step of turning the pressure sensor counterclockwise includes:

[0018] The pressure sensor is rotated counterclockwise at a first preset rotation angle;

[0019] Wherein, 40°≤first preset torsion angle≤50°.

[0020] In an optional implementation, the automotive hydrogen system installation process further includes:

[0021] Connect the end cap of one 1 / 4-inch pipe to the fitting of another 1 / 4-inch pipe.

[0022] Twist the connector and pipe nut to make the connector and pipe nut threaded together;

[0023] Connect multiple 1 / 4-inch pipes in sequence to form a hydrogen inlet pipe;

[0024] One end of the hydrogen inlet pipeline is connected to the first hydrogen cylinder group and the second hydrogen cylinder group; wherein, the hydrogen inlet pipeline is used to supply hydrogen to the first hydrogen cylinder group and the second hydrogen cylinder group.

[0025] In an optional implementation, the step of tightening the joint and the pipe nut includes:

[0026] Twist the joint and pipe nut using a preset torque;

[0027] Among them, 22 N·m ≤ preset torque ≤ 34 N·m.

[0028] In an optional implementation, the automotive hydrogen system installation process further includes:

[0029] Connect one end of one 3 / 8-inch pipe to one end of another 3 / 8-inch pipe, and twist the 3 / 8-inch pipe clockwise to make the two 3 / 8-inch pipes threaded together.

[0030] Multiple 3 / 8-inch pipes are sequentially threaded together to form an exhaust pipe;

[0031] One end of the exhaust pipe is connected to the first hydrogen cylinder group; the exhaust pipe is used to discharge excess hydrogen.

[0032] Multiple 3 / 8-inch tubing lines are sequentially threaded together to form a delivery pipeline;

[0033] One end of the delivery pipeline is connected to the second hydrogen cylinder group; the delivery pipeline is used to deliver hydrogen to the fuel cell.

[0034] In an optional implementation, the step of turning the 3 / 8-inch tubing clockwise further includes:

[0035] Twist the 3 / 8-inch tubing clockwise at the second preset twist angle;

[0036] Wherein, 240°≤second preset torsion angle≤260°.

[0037] In an optional embodiment, both the first direction and the second direction are perpendicular to the extension direction of the rear beam; and / or,

[0038] Both the third and fourth directions are tilted relative to the chassis.

[0039] In an optional embodiment, the rear beam is provided with a sleeve, through which the first set of fastening bolts passes and connects to the first hydrogen cylinder assembly; the height of the sleeve is greater than or equal to 8 mm and less than or equal to 12 mm; and / or,

[0040] The chassis includes a first bracket, and a third set of fastening bolts connects to the first bracket; the third set of fastening bolts includes a first end cap, the distance from the highest point of the first end cap to the surface of the first bracket being greater than or equal to 85 mm and less than or equal to 90 mm; and / or,

[0041] The chassis includes a second bracket, and a fourth set of fastening bolts is connected to the second bracket; the fourth set of fastening bolts includes a second end cap, and the distance from the lowest point of the second end cap to the surface of the second bracket is 145mm-150mm.

[0042] In an optional embodiment, the chassis further includes a third support, located on one side of the first hydrogen cylinder group; the distance from the cylinder valve of the first hydrogen cylinder group to the third support is greater than or equal to 50 mm and less than or equal to 54 mm; and / or,

[0043] The chassis also includes a fourth support; the fourth support is located on one side of the second hydrogen cylinder group; the distance from the cylinder valve of the second hydrogen cylinder group to the fourth support is greater than or equal to 77 mm and less than or equal to 82 mm.

[0044] The beneficial effects of the automotive hydrogen system installation process provided in this embodiment of the invention include:

[0045] This automotive hydrogen system installation process involves installing a first and a second hydrogen cylinder assembly alternately within the chassis, providing space for the installation of other structures. Furthermore, a first and a second fastening bolt are positioned on opposite sides of the first hydrogen cylinder assembly, with the first bolt inserted in a first direction and the second bolt inserted in a second direction. This ensures balanced force distribution between the chassis and the first hydrogen cylinder assembly, preventing it from swaying or detaching, thus preventing hydrogen leakage and accidents, and improving safety. Similarly, a third and a fourth fastening bolt are positioned on opposite sides of the second hydrogen cylinder assembly, with the third bolt inserted in the opposite direction to the fourth bolt. This also prevents the second hydrogen cylinder assembly from swaying or detaching, improving structural stability and enhancing protection for the second hydrogen cylinder assembly. Attached Figure Description

[0046] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the installation process of the first hydrogen cylinder group and the second hydrogen cylinder group in the automotive hydrogen system installation process provided in this embodiment.

[0048] Figure 2 This is a schematic diagram of the structure of the automotive hydrogen system provided in this embodiment;

[0049] Figure 3 This is a schematic diagram of the first fastening bolt group and the rear beam provided in this embodiment;

[0050] Figure 4 This is a structural diagram of the third fastening bolt group and the first bracket provided in this embodiment;

[0051] Figure 5 This is a structural schematic diagram of the fourth fastening bolt group and the second bracket provided in this embodiment;

[0052] Figure 6 This is a schematic diagram of the structure of the first hydrogen cylinder assembly and the third support provided in this embodiment;

[0053] Figure 7 This is a schematic diagram of the structure of the second hydrogen cylinder group and the fourth support provided in this embodiment;

[0054] Figure 8This is a schematic diagram of the installation process of connecting pipes, multi-way valves and pressure sensors in the automotive hydrogen system installation process provided in this embodiment;

[0055] Figure 9 for Figure 2 A magnified view of a section at point A in the middle;

[0056] Figure 10 This is a schematic diagram of the installation process of the hydrogen inlet pipeline in the automotive hydrogen system installation process provided in this embodiment;

[0057] Figure 11 This is a schematic diagram of the installation process of the 1 / 4-inch pipeline in the automotive hydrogen system installation process provided in this embodiment;

[0058] Figure 12 This is a schematic diagram of the installation process of the hydrogen exhaust pipeline and the delivery pipeline in the automotive hydrogen system installation process provided in this embodiment;

[0059] Figure 13 This is a schematic diagram of the installation process of the 3 / 8-inch pipeline in the automotive hydrogen system installation process provided in this embodiment.

[0060] Icons: 100 - Automotive hydrogen system; 110 - Chassis; 111 - Rear beam; 112 - Sleeve; 113 - First bracket; 114 - Second bracket; 115 - Third bracket; 116 - Fourth bracket; 120 - First hydrogen cylinder group; 130 - Second hydrogen cylinder group; 140 - First fastening bolt group; 150 - Second fastening bolt group; 160 - Third fastening bolt group; 161 - First end cap; 170 - Fourth fastening bolt group; 171 - Second end cap; 180 - Connecting pipeline; 190 - Multi-way valve; 210 - Pressure sensor; 220 - Hydrogen inlet pipeline; 230 - Hydrogen outlet pipeline; 240 - Delivery pipeline. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0062] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0063] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0064] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0065] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0066] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0067] Please refer to Figures 1-7 , Figure 1 This is a schematic diagram of the installation process of the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130 in the automotive hydrogen system installation process provided in this embodiment. Figure 2 This is a schematic diagram of the structure of the automotive hydrogen system 100 provided in this embodiment; Figure 3 This is a structural schematic diagram of the first fastening bolt group 140 and the rear beam 111 provided in this embodiment; Figure 4 This is a schematic diagram of the structure of the third fastening bolt group 160 and the first bracket 113 provided in this embodiment; Figure 5 This is a schematic diagram of the structure of the fourth fastening bolt group 170 and the second bracket 114 provided in this embodiment; Figure 6 This is a schematic diagram of the structure of the first hydrogen cylinder group 120 and the third support 115 provided in this embodiment; Figure 7 This is a schematic diagram of the structure of the second hydrogen cylinder group 130 and the fourth support 116 provided in this embodiment.

[0068] This embodiment provides a method for installing a vehicle hydrogen system 100. When assembling the vehicle hydrogen system 100, the first step is to assemble the hydrogen cylinders within the system. In this embodiment, the vehicle hydrogen system 100 includes a first hydrogen cylinder group 120 and a second hydrogen cylinder group 130. The first hydrogen cylinder group 120 has one hydrogen cylinder, while the second hydrogen cylinder group 130 has two hydrogen cylinders. Understandably, the hydrogen cylinders are used to store hydrogen.

[0069] The process for installing a hydrogen system in a vehicle includes the following steps:

[0070] S1: Place the first hydrogen cylinder group 120 on the rear beam 111 of the chassis 110.

[0071] S2: Place the second hydrogen group on the chassis 110, and set the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130 at intervals.

[0072] S3: Thread the first hydrogen cylinder group 120 and the chassis 110 together with the first fastening bolt group 140 in the first direction.

[0073] S4: Thread the first hydrogen cylinder group 120 and the chassis 110 together with the second fastening bolt group 150 along the second direction; wherein the first fastening bolt group 140 and the second fastening bolt group 150 are located on opposite sides of the first hydrogen cylinder group 120, and the first direction and the second direction are opposite.

[0074] S5: Thread the second hydrogen cylinder assembly 130 and the chassis 110 along the third direction using the third fastening bolt group 160.

[0075] S6: Thread the second hydrogen cylinder group 130 and the chassis 110 together with the fourth fastening bolt group 170 along the fourth direction; wherein the third fastening bolt group 160 and the fourth fastening bolt group 170 are located on opposite sides of the second hydrogen cylinder group 130, and the third direction is opposite to the fourth direction.

[0076] It should be noted that the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130 are spaced apart to reserve space for the driver, so that the driver can drive the hydrogen in the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130 to be delivered to the fuel cell.

[0077] The first direction is the direction in which the first fastening bolt group 140 is inserted into the screw hole in the chassis 110, the second direction is the direction in which the second fastening bolt group 150 is inserted into the screw hole in the chassis 110, the third direction is the direction in which the third fastening bolt group 160 is inserted into the screw hole in the chassis 110, and the fourth direction is the direction in which the fourth fastening bolt group 170 is inserted into the screw hole in the chassis 110.

[0078] In other embodiments, the order of S1 and S2 can be interchanged, and the order of S2 and S3 can also be interchanged; that is, in other embodiments, the order of assembling the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130 can also be S1-S3-S4-S2-S5-S6, S1-S2-S5-S6-S3-S4, S2-S1-S3-S4-S5-S6, S2-S1-S5-S6-S3-S4, or S2-S5-S6-S1-S3-S4, etc.

[0079] It should also be noted that each hydrogen cylinder is fitted with a strap, which can be understood as connecting the hydrogen cylinder assembly and the chassis 110, i.e., connecting the strap and the chassis 110; therefore, the first fastening bolt group 140 and the second fastening bolt group 150 are located on the side of the first hydrogen cylinder assembly 120, rather than the bottom or top; and, in order to make the structure more stable after installation, the first fastening bolt group 140 and the second fastening bolt group 150 are arranged opposite each other.

[0080] However, since the second hydrogen cylinder group 130 has two hydrogen cylinders, the third fastening bolt group 160 and the fourth fastening bolt group 170 are located on the sides of the two hydrogen cylinder groups respectively, and the third fastening bolt group 160 and the fourth fastening bolt group 170 are also arranged opposite to each other, thereby making the structure of the automotive hydrogen system 100 more stable after installation, and the second hydrogen cylinder group 130 is not easy to shake or detach from the chassis 110.

[0081] In this embodiment, when connecting the first hydrogen cylinder assembly 120 and the chassis 110 via the first fastening bolt group 140 and the second fastening bolt group 150, the first fastening bolt group 140 is inserted into the screw holes in the chassis 110 and the strap along the first direction. Then, the first fastening bolt group 140 is turned to connect the chassis 110 and the first hydrogen cylinder assembly 120. The second fastening bolt group 150 is inserted into the screw holes in the chassis 110 and the strap along the second direction. Then, the second fastening bolt group 150 is turned to connect the chassis 110 and the first hydrogen cylinder assembly 120. The first and second directions are opposite, so that the first hydrogen cylinder assembly 120 receives opposite forces, thereby balancing the stress on the first hydrogen cylinder assembly 120, preventing the first hydrogen cylinder assembly 120 from shaking or detaching, improving the structural stability of the automotive hydrogen system 100, improving the protection effect of the first hydrogen cylinder assembly 120, and improving safety.

[0082] It should be noted that the first fastening bolt group 140 is used to connect the rear beam 111 and the first hydrogen cylinder group 120.

[0083] Similarly, in this embodiment, when connecting the second hydrogen cylinder group 130 and the chassis 110 via the third fastening bolt group 160 and the fourth fastening bolt group 170, the third fastening bolt group 160 needs to be inserted into the screw holes in the chassis 110 and the strap along the third direction, and the third fastening bolt group 160 is turned to connect the chassis 110 and the second hydrogen cylinder group 130; the fourth fastening bolt group 170 is inserted into the screw holes in the chassis 110 and the strap along the fourth direction, and the fourth fastening bolt group 170 is turned to connect the chassis 110 and the second hydrogen cylinder group 130; thereby making the second hydrogen cylinder group 130 subject to balanced forces, improving the structural stability of the gas-hydrogen system, improving the protection effect of the second hydrogen cylinder group 130, and improving safety.

[0084] It should be noted that the bolts in the first fastening bolt group 140 extend in a direction parallel to the first direction, the bolts in the second fastening bolt group 150 extend in a direction parallel to the second direction, the bolts in the third fastening bolt group 160 extend in a direction parallel to the third direction, and the bolts in the fourth fastening bolt group 170 extend in a direction parallel to the fourth direction.

[0085] Based on the above settings, please refer to... Figures 1-7 In this embodiment, the first and second directions are perpendicular to the extension direction of the rear beam 111, and the third and fourth directions are inclined relative to the chassis 110.

[0086] Specifically, it can be understood that the chassis 110 is parallel to the ground, while the first and second fastening bolt groups 140 and 150 are inserted vertically, and the third and fourth fastening bolt groups 160 and 170 are inserted at an angle. Because the first hydrogen cylinder group 120 is located on the rear beam 111, i.e., at the rear of the vehicle, and the second hydrogen cylinder group 130 is spaced apart from the first hydrogen cylinder group 120, the second hydrogen cylinder group 130 is positioned near the center of the vehicle. Since other structures are located on both sides of the second hydrogen cylinder group 130, the third and fourth fastening bolt groups 160 and 170 need to be inserted at an angle to prevent them from contacting or colliding with other structures during movement, thereby improving safety.

[0087] Further, please refer to Figures 1-7 The fastening bolt assembly includes bolts, end caps, springs, and nuts. The bolts and nuts cooperate to connect the chassis 110 and the strap. The spring is sleeved on the bolt, with one end of the spring abutting against the end cap. A sleeve 112 is provided on the chassis 110. The bolts in the fastening bolt assembly are inserted into the screw holes in the sleeve 112 and the strap, thereby connecting the chassis 110 and the strap. After assembly, the other end of the spring abuts against the sleeve 112.

[0088] Understandably, the fastening bolt assembly is an anti-loosening bolt, and the inner wall of the sleeve 112 is provided with threads to engage with the bolts.

[0089] In this embodiment, the first fastening bolt group 140 cooperates with the sleeve 112 on the rear beam 111, wherein the height of the sleeve 112 on the rear beam 111 is H1, and 8mm≤H1≤12mm. Specifically, the height of the sleeve 112 can be 8mm, 9mm or 11mm.

[0090] The end cap in the third fastening bolt group 160 is the first end cap 161. The first bracket 113 in the chassis 110 is connected to the third fastening bolt group 160. The distance from the highest point of the first end cap 161 to the surface of the first bracket 113 is H2, where 85mm≤H2≤90mm. Specifically, H2 can be 86mm, 88mm, or 90mm.

[0091] The end cap in the fourth fastening bolt group 170 is the second end cap 171. The second bracket 114 in the chassis 110 is connected to the fourth fastening bolt group 170. The distance from the lowest point of the second end cap 171 to the surface of the second bracket 114 is H3, where 145mm ≤ H3 ≤ 150mm. Specifically, H3 can be 145mm, 147mm, or 149mm.

[0092] It should be noted that if the values ​​of H1, H2, and H3 are less than the above range, the connection will be unstable, causing the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130 to detach from the chassis 110; if the values ​​of H1, H2, and H3 are greater than the above range, the thread will slip.

[0093] Based on the above structural configuration, in this embodiment, please refer to... Figures 1-7 In this embodiment, the chassis 110 also includes a third bracket 115, which is located on one side of the first hydrogen cylinder group 120 and is connected to the first hydrogen cylinder group 120 by a second fastening bolt.

[0094] It should be noted that each hydrogen cylinder is equipped with a valve at its end, and the end of the third bracket 115 is equipped with a positioning hole. The distance from the valve in the first hydrogen cylinder group 120 to the positioning hole in the third bracket 115 is L1, where 50mm≤L1≤54mm. Specifically, L1 can be 51mm or 53mm.

[0095] In this embodiment, the chassis 110 further includes a fourth bracket 116, which is located on one side of the second hydrogen cylinder group 130 and is connected to the second hydrogen cylinder group 130 via a fourth fastening bolt group 170. It can be understood that in this embodiment, the second bracket 114 and the fourth bracket 116 are the same bracket.

[0096] The end of the fourth bracket 116 is also provided with a positioning hole. The distance from the valve of the second hydrogen cylinder group 130 to the positioning hole in the fourth bracket 116 is L2, where 77mm≤L1≤82mm. Specifically, L2 can be 77mm or 80mm.

[0097] It should be noted that since the second hydrogen cylinder group 130 is located near the middle of the car, there are various wires on the side of the second hydrogen cylinder group 130. Therefore, the distance from the valve of the second hydrogen cylinder group 130 to the positioning hole of the fourth bracket 116 is greater than the distance from the valve of the first hydrogen cylinder group 120 to the positioning hole of the third bracket 115, so as to increase the space for wire routing.

[0098] In this embodiment, multiple sets of the first fastening bolt group 140, the second fastening bolt group 150, the third fastening bolt group 160, and the fourth fastening bolt group 170 are provided.

[0099] Further, please refer to Figures 1-9 , Figure 8 This is a schematic diagram of the installation process of the connecting pipe 180, multi-way valve 190 and pressure sensor 210 in the automotive hydrogen system installation process provided in this embodiment. Figure 9 for Figure 2 A magnified view of a portion of point A in the middle.

[0100] The automotive hydrogen system 100 in this embodiment further includes a connecting pipe 180, a multi-way valve 190, and a pressure sensor 210; the installation process of the automotive hydrogen system also includes the following for the connecting pipe 180, the multi-way valve 190, and the pressure sensor 210:

[0101] S6: Connect one end of the connecting pipe 180 to the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130.

[0102] S7: Connect the other end of the connecting pipe 180 to the multi-way valve 190.

[0103] S8: First, turn the pressure sensor 210 clockwise to connect the pressure sensor 210 to the multi-way valve 190 via a thread, then turn the pressure sensor 210 counterclockwise.

[0104] S9: Determine if there is significant resistance during the twisting process; if there is significant resistance, repeat step S8.

[0105] S10: If there is no obvious resistance, tighten the pressure sensor 210 to complete the installation.

[0106] It should be noted that, due to the small size of the connecting pipe 180 and pressure sensor 210, they need to be connected manually. During the connection process, a detector can be set to detect the torsional resistance.

[0107] Furthermore, in other embodiments, the order of S6 and S7 can be interchanged, or S6 and S7 can be performed after S8, S9, and S10 are completed. That is, in other embodiments, the order of the automotive hydrogen system installation process can be S7-S6-S8-S9-S10, S8-S9-S10-S7-S6, S8-S9-S10-S6-S7, S7-S8-S9-S10-S6, or S6-S8-S9-S10-S7, etc.

[0108] Based on the above, the steps of turning the pressure sensor 210 counterclockwise include:

[0109] S8.1: Twist the pressure sensor 210 counterclockwise by a first preset twist angle; wherein, 40° ≤ first preset twist angle ≤ 50°. Specifically, the first preset twist angle can be 43°, 45° or 49°.

[0110] Understandably, when loosening the pressure sensor 210 counterclockwise, the twisting angle needs to be controlled between 40° and 50°. If the twisting angle is too large or too small, it will lead to unstable connection, resulting in hydrogen leakage and posing a safety hazard.

[0111] It should be noted that in this embodiment, the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130 are installed first, followed by the connecting pipe 180, the multi-way valve 190, and the pressure sensor 210. In other embodiments, the connecting pipe 180, the multi-way valve 190, and the pressure sensor 210 may be installed first, followed by the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130.

[0112] Further, please refer to Figures 1-11 , Figure 10 This is a schematic diagram of the installation process of the hydrogen inlet pipe 220 in the automotive hydrogen system installation process provided in this embodiment; Figure 11 This is a schematic diagram of the installation process of the 1 / 4-inch pipeline in the automotive hydrogen system installation process provided in this embodiment.

[0113] The automotive hydrogen system 100 in this embodiment also includes a hydrogen inlet pipe 220. Regarding the hydrogen inlet pipe 220, the automotive hydrogen system installation process further includes:

[0114] S11: Connect multiple 1 / 4-inch pipes in sequence to form hydrogen inlet pipe 220.

[0115] S12: Connect one end of the hydrogen inlet pipe 220 to the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130; wherein, the hydrogen inlet pipe 220 is used to supply hydrogen to the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130.

[0116] Understandably, the other end of the hydrogen inlet pipe 220 is used to connect to an external hydrogen supply device.

[0117] Based on the above, in this embodiment, the two ends of the 1 / 4-inch pipe are respectively provided with pipe supports and connectors, and the pipe nut is fitted onto the connector; the installation steps for the two 1 / 4-inch pipes in this automotive hydrogen installation process include:

[0118] S11.1: Connect the end cap of one 1 / 4-inch pipe to the fitting of another 1 / 4-inch pipe.

[0119] S11.2: Twist the connector and the pipe nut to make the connector and the pipe nut threaded together.

[0120] It should be noted that the steps for tightening the joint and pipe nut include: tightening the joint and pipe nut with a preset torque; wherein, 22 N·m ≤ preset torque ≤ 34 N·m. Specifically, the preset torque can be 23 N·m, 28 N·m, 30 N·m, and 33 N·m.

[0121] If the torque is too large or too small, it may lead to unstable connection, resulting in hydrogen leakage and creating a safety hazard.

[0122] Furthermore, since the diameter of the 1 / 4-inch pipe is small, it needs to be installed manually to avoid damaging the 1 / 4-inch pipe. In this embodiment, a detector can be set to detect the torque and ensure that the torque is within the above range.

[0123] Further, please refer to Figures 1-13 , Figure 12 This is a schematic diagram of the installation process of the hydrogen exhaust pipeline 230 and the delivery pipeline 240 in the automotive hydrogen system installation process provided in this embodiment; Figure 13 This is a schematic diagram of the installation process of the 3 / 8-inch pipeline in the automotive hydrogen system installation process provided in this embodiment.

[0124] In this embodiment, the automotive hydrogen system 100 further includes a hydrogen exhaust system and a delivery pipeline 240. Regarding the hydrogen exhaust pipeline 230 and the delivery pipeline 240, the automotive hydrogen system installation process further includes:

[0125] S13: Connect multiple 3 / 8-inch pipes sequentially by threading to form an exhaust pipe and a delivery pipe 240;

[0126] S14: Connect one end of the exhaust pipe to the first hydrogen cylinder group 120; connect one end of the delivery pipe 240 to the second hydrogen cylinder group 130; wherein, the exhaust pipe is used to discharge excess hydrogen, and the delivery pipe 240 is used to deliver hydrogen to the fuel cell.

[0127] Based on the above setup, the installation steps for the two 3 / 8-inch lines in this automotive hydrogen installation process include:

[0128] S13.1: Connect one end of one 3 / 8-inch conduit to one end of another 3 / 8-inch conduit.

[0129] S13.2: Twist the 3 / 8-inch tubing clockwise to connect the two 3 / 8-inch tubing threads.

[0130] It should be noted that the step of turning the 3 / 8-inch tubing clockwise also includes turning the 3 / 8-inch tubing clockwise at a second preset turning angle; wherein, 240° ≤ second preset turning angle ≤ 260°. Specifically, the second preset turning angle can be 243°, 250°, or 257°.

[0131] Understandably, due to the small diameter of the two 3 / 8-inch pipes, manual installation is necessary to avoid damaging them. Furthermore, before installation, the two 3 / 8-inch pipes must be marked with a locating mark at the 6 o'clock position on the nut. This allows the nut to be turned 250° during connection so that the locating mark stops at the 9 o'clock position. At this point, the assembly is complete.

[0132] It should also be noted that the installation order of the first hydrogen cylinder group 120, the second hydrogen cylinder group 130, the connecting pipeline 180, the multi-way valve 190, the pressure sensor 210, the hydrogen inlet pipeline 220, the hydrogen outlet pipeline 230, and the delivery pipeline 240 can be interchanged.

[0133] In summary, this automotive hydrogen system installation process, by installing the first hydrogen cylinder assembly 120 and the second hydrogen cylinder assembly 130 alternately within the chassis 110, provides reserved space for the installation of other structures within both assemblies. Furthermore, by placing the first and second fastening bolts on opposite sides of the first hydrogen cylinder assembly 120, the insertion directions of the first and second bolts are balanced, ensuring even force distribution between the chassis 110 and the first hydrogen cylinder assembly 120. This prevents the first hydrogen cylinder assembly 120 from shaking or detaching, thereby preventing hydrogen leakage and accidents, thus improving safety. Similarly, the third and fourth fastening bolts are placed on opposite sides of the second hydrogen cylinder assembly 130, with the insertion direction of the third bolt opposite to that of the fourth bolt. This also prevents the second hydrogen cylinder assembly 130 from shaking or detaching, improving structural stability and enhancing the protection of the second hydrogen cylinder assembly 130.

[0134] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for installing a hydrogen system in an automobile, characterized in that, include: The first hydrogen cylinder group (120) is placed on the rear beam (111) of the chassis (110). The second hydrogen cylinder group (130) is placed on the chassis (110) such that the first hydrogen cylinder group (120) and the second hydrogen cylinder group (130) are spaced apart; The first set of fastening bolts (140) is used to thread the first hydrogen cylinder assembly (120) and the chassis (110) in a first direction; The first hydrogen cylinder assembly (120) and the chassis (110) are threaded together by the second fastening bolt group (150) along the second direction; wherein the first fastening bolt group (140) and the second fastening bolt group (150) are respectively located on opposite sides of the first hydrogen cylinder assembly (120), and the first direction and the second direction are opposite; The second hydrogen cylinder assembly (130) and the chassis (110) are threaded together by the third fastening bolt group (160) along the third direction; The second hydrogen cylinder assembly (130) and the chassis (110) are threaded together by the fourth fastening bolt group (170) along the fourth direction; wherein the third fastening bolt group (160) and the fourth fastening bolt group (170) are respectively located on opposite sides of the second hydrogen cylinder assembly (130), and the third direction is opposite to the fourth direction; Both the first direction and the second direction are perpendicular to the extension direction of the rear beam (111).

2. The automotive hydrogen system installation process according to claim 1, characterized in that, The automotive hydrogen system installation process also includes: Connect one end of the connecting pipe (180) to the first hydrogen cylinder group (120) and the second hydrogen cylinder group (130); Connect the other end of the connecting pipe (180) to the multi-way valve (190); First, turn the pressure sensor (210) clockwise to connect it to the multi-way valve (190) by thread. Then, turn the pressure sensor (210) counterclockwise. Repeat this turning several times to gradually reduce the resistance.

3. The automotive hydrogen system installation process according to claim 2, characterized in that, The step of twisting the pressure sensor (210) counterclockwise includes: The pressure sensor (210) is rotated counterclockwise at a first preset rotation angle. Wherein, 40°≤first preset torsion angle≤50°.

4. The automotive hydrogen system installation process according to claim 1, characterized in that, The automotive hydrogen system installation process also includes: Connect the end cap of one 1 / 4-inch pipe to the fitting of another 1 / 4-inch pipe. Twist the connector and the pipe nut to make the connector and the pipe nut threaded together; Multiple 1 / 4-inch pipes are connected in sequence to form a hydrogen inlet pipe (220). One end of the hydrogen inlet pipe (220) is connected to the first hydrogen cylinder group (120) and the second hydrogen cylinder group (130); wherein the hydrogen inlet pipe (220) is used to supply hydrogen to the first hydrogen cylinder group (120) and the second hydrogen cylinder group (130).

5. The automotive hydrogen system installation process method according to claim 4, characterized in that, The step of twisting the joint and the pipe nut includes: Twist the joint and the pipe nut with a preset torque; Among them, 22 N·m ≤ preset torque ≤ 34 N·m.

6. The automotive hydrogen system installation process method according to claim 1, characterized in that, The automotive hydrogen system installation process also includes: Connect one end of one 3 / 8-inch pipe to one end of another 3 / 8-inch pipe, and twist the 3 / 8-inch pipe clockwise to make the two 3 / 8-inch pipes threaded together. Multiple 3 / 8-inch pipes are sequentially threaded together to form an exhaust pipe; One end of the exhaust pipe is connected to the first hydrogen cylinder group (120); wherein the exhaust pipe is used to discharge excess hydrogen. Multiple 3 / 8-inch tubings are sequentially threaded together to form a delivery tubing (240). One end of the delivery pipeline (240) is connected to the second hydrogen cylinder group (130); wherein the delivery pipeline (240) is used to deliver hydrogen to the fuel cell.

7. The automotive hydrogen system installation process method according to claim 6, characterized in that, The step of turning the 3 / 8-inch tubing clockwise further includes: Twist the 3 / 8-inch tubing clockwise at a second preset twist angle; Wherein, 240°≤second preset torsion angle≤260°.

8. The automotive hydrogen system installation process according to any one of claims 1-7, characterized in that, Both the third direction and the fourth direction are inclined relative to the chassis (110).

9. The automotive hydrogen system installation process according to any one of claims 1-7, characterized in that, The rear beam (111) is provided with a sleeve (112), through which the first fastening bolt group (140) passes and connects to the first hydrogen cylinder group (120); the height of the sleeve (112) is greater than or equal to 8 mm and less than or equal to 12 mm; and / or, The chassis (110) includes a first bracket (113), and the third fastening bolt group (160) is connected to the first bracket (113); the third fastening bolt group (160) includes a first end cap (161), the distance from the highest point of the first end cap (161) to the surface of the first bracket (113) is greater than or equal to 85 mm and less than or equal to 90 mm; and / or, The chassis (110) includes a second bracket (114), and the fourth fastening bolt group (170) is connected to the second bracket (114); the fourth fastening bolt group (170) includes a second end cap (171), and the distance from the lowest point of the second end cap (171) to the surface of the second bracket (114) is 145mm-150mm.

10. The automotive hydrogen system installation process according to any one of claims 1-7, characterized in that, The chassis (110) further includes a third bracket (115) located on one side of the first hydrogen cylinder group (120); the distance from the valve of the first hydrogen cylinder group (120) to the third bracket (115) is greater than or equal to 50 mm and less than or equal to 54 mm; and / or, The chassis (110) also includes a fourth bracket (116); the fourth bracket (116) is located on one side of the second hydrogen cylinder group (130); the distance from the cylinder valve of the second hydrogen cylinder group (130) to the fourth bracket (116) is greater than or equal to 77 mm and less than or equal to 82 mm.

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