Automobile hydrogen system installation process

Abstract

The invention relates to the technical field of automobile manufacturing, in particular to an automobile hydrogen system mounting process. According to the automobile hydrogen system mounting process, a first hydrogen cylinder group and a second hydrogen cylinder group are mounted in a chassis at intervals, so that the first hydrogen cylinder group and the second hydrogen cylinder group have reserved spaces for mounting other structures; moreover, in the installation process, a first fastening bolt and a second fastening bolt are arranged on the two sides of the first hydrogen cylinder set correspondingly, the insertion direction of the first fastening bolt is the first direction, the insertion direction of the second fastening bolt is the second direction, and the first direction is opposite to the second direction. The third fastening bolt and the fourth fastening bolt are arranged on the two sides of the second hydrogen cylinder set correspondingly, the third fastening bolt is inserted in the third direction, the fourth fastening bolt is inserted in the fourth direction, and the third direction is opposite to the fourth direction, so that the hydrogen cylinder sets are prevented from shaking and disengaging, and the structural stability is improved; and the protection effect on the hydrogen cylinder group is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile manufacturing, and in particular to an installation process of an automobile hydrogen system. Background Art

[0002] Hydrogen vehicles, also known as hydrogen energy vehicles, are mainly divided into two categories: hydrogen internal combustion engine vehicles and hydrogen fuel cell vehicles. The working principle of hydrogen internal combustion engine vehicles is the same as that of fuel internal combustion engines, releasing chemical energy of reaction gases through combustion and doing work through gas expansion; while hydrogen fuel cell vehicles use hydrogen or hydrogen-containing substances to react with oxygen in the air in the fuel cell to generate electricity to drive the motor, which then drives the vehicle.

[0003] However, existing hydrogen fuel cell vehicles have problems with poor stability and low safety. Summary of the invention

[0004] The purpose of the present invention includes providing a vehicle hydrogen system installation process, which can improve stability, thereby improving the protection effect on hydrogen cylinders, and further improving safety.

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

[0006] The present invention provides an automobile hydrogen system installation process, comprising:

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

[0008] Placing the second hydrogen group on the chassis so that the first hydrogen cylinder group and the second hydrogen cylinder group are spaced apart;

[0009] Threading the first hydrogen cylinder assembly and the chassis with a first fastening bolt assembly along a first direction;

[0010] The first hydrogen cylinder group and the chassis are threadedly connected by a second fastening bolt group along a second direction; wherein the first fastening bolt group and the second fastening bolt group are respectively located on two opposite sides of the first hydrogen cylinder group, and the first direction and the second direction are opposite;

[0011] Thread the second hydrogen cylinder assembly and the chassis together using the third fastening bolt assembly along the third direction;

[0012] The second hydrogen cylinder group and the chassis are threadedly connected with the fourth fastening bolt group along the fourth direction; wherein the third fastening bolt group and the fourth fastening bolt group are respectively located on two opposite sides of the second hydrogen cylinder group, and the third direction is opposite to the fourth direction.

[0013] In an optional embodiment, the automobile 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, twist the pressure sensor clockwise to connect the pressure sensor to the multi-way valve thread, then twist the pressure sensor counterclockwise, and repeat the twisting process several times to gradually reduce the resistance.

[0017] In an optional embodiment, the step of twisting the pressure sensor counterclockwise includes:

[0018] twisting the pressure sensor counterclockwise at a first preset twisting angle;

[0019] Among them, 40°≤first preset twisting angle≤50°.

[0020] In an optional embodiment, the automobile hydrogen system installation process further includes:

[0021] Place the pipe pier of one 1 / 4-inch pipe against the joint of another 1 / 4-inch pipe;

[0022] Twist the joint and the pipe nut to make the joint and the pipe nut threadedly connected;

[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 transport hydrogen to the first hydrogen cylinder group and the second hydrogen cylinder group.

[0025] In an optional embodiment, the step of twisting the joint and the tube nut comprises:

[0026] Torque the joint and the tube nut in a preset torque manner;

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

[0028] In an optional embodiment, the automobile hydrogen system installation process further includes:

[0029] Connect one end of a 3 / 8-inch pipe to another end of a 3 / 8-inch pipe, and twist the 3 / 8-inch pipe clockwise to make the two 3 / 8-inch pipes threadedly connected;

[0030] Thread multiple 3 / 8-inch pipes in sequence to form an exhaust pipe;

[0031] Connect one end of the exhaust pipeline to the first hydrogen cylinder group; wherein the exhaust pipeline is used to discharge excess hydrogen;

[0032] Threading multiple 3 / 8-inch pipes in sequence to form a delivery pipeline;

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

[0034] In an optional embodiment, the step of twisting the 3 / 8 inch pipe clockwise further comprises:

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

[0036] Among them, 240°≤the second preset twisting angle≤260°.

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

[0038] The third direction and the fourth direction are both inclined relative to the chassis.

[0039] In an optional embodiment, the rear beam is provided with a sleeve, and the first fastening bolt group passes through the sleeve and is connected to the first hydrogen cylinder group; 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 the third fastening bolt group is connected to the first bracket; the third fastening bolt group includes a first end cover, and the distance from the highest point of the first end cover to the surface of the first bracket is 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 fastening bolt group is connected to the second bracket; the fourth fastening bolt group includes a second end cover, and the distance from the lowest point of the second end cover to the surface of the second bracket is greater than or equal to 145mm-150mm.

[0042] In an optional embodiment, the chassis further includes a third bracket, which is located on one side of the first hydrogen bottle group; the distance from the bottle valve of the first hydrogen bottle group to the third bracket 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 bracket; the fourth bracket is located on one side of the second hydrogen cylinder group; the distance from the bottle valve of the second hydrogen cylinder group to the fourth bracket is greater than or equal to 77 mm and less than or equal to 82 mm.

[0044] The beneficial effects of the automobile hydrogen system installation process provided by the embodiment of the present invention include:

[0045] The automobile hydrogen system installation process is to install the first hydrogen cylinder group and the second hydrogen cylinder group in the chassis at intervals, so that the first hydrogen cylinder group and the second hydrogen cylinder group have reserved space for installing other structures; and the first fastening bolt and the second fastening bolt are respectively arranged on both sides of the first hydrogen cylinder group, the insertion direction of the first fastening bolt is the first direction, and the insertion direction of the second fastening bolt is the second direction, and the first direction and the second direction are opposite, so that the force between the chassis and the first hydrogen cylinder group is balanced, thereby avoiding the first hydrogen cylinder group from shaking and detaching, thereby avoiding hydrogen leakage and accidents, and improving safety. Similarly, the third fastening bolt and the fourth fastening bolt are respectively arranged on both sides of the second hydrogen cylinder group, and the insertion direction of the third fastening bolt is opposite to the insertion direction of the fourth fastening bolt, that is, the third direction is opposite to the fourth direction, thereby avoiding the second hydrogen cylinder group from shaking and detaching, thereby improving the stability of the structure and improving the protection effect of the second hydrogen cylinder group. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0047] Figure 1 A schematic diagram of the installation process of the first hydrogen cylinder group and the second hydrogen cylinder group in the automobile hydrogen system installation process provided in this embodiment;

[0048] Figure 2 A schematic diagram of the structure of the automobile hydrogen system provided in this embodiment;

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

[0050] Figure 4 A schematic diagram of the structure of the third fastening bolt group and the first bracket provided in this embodiment;

[0051] Figure 5 A schematic diagram of the structure of the fourth fastening bolt group and the second bracket provided in this embodiment;

[0052] Figure 6 A schematic diagram of the structure of the first hydrogen cylinder group and the third bracket provided in this embodiment;

[0053] Figure 7 A schematic diagram of the structure of the second hydrogen cylinder group and the fourth bracket provided in this embodiment;

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

[0055] Fig. 9 for Figure 2 A partial enlarged view of the middle A;

[0056] Fig.10 A schematic diagram of the installation process of the hydrogen inlet pipeline in the automobile hydrogen system installation process provided in this embodiment;

[0057] Fig.11 A schematic diagram of the installation process of a 1 / 4-inch pipeline in the automobile hydrogen system installation process provided in this embodiment;

[0058] Fig.12 A schematic diagram of the installation process of the hydrogen exhaust pipeline and the hydrogen delivery pipeline in the automobile hydrogen system installation process provided in this embodiment;

[0059] Fig.13 A schematic diagram of the installation process of a 3 / 8-inch pipeline in the automobile hydrogen system installation process provided in this embodiment.

[0060] Icons: 100-automobile 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 cover; 170-fourth fastening bolt group; 171-second end cover; 180-connecting pipeline; 190-multi-way valve; 210-pressure sensor; 220-hydrogen inlet pipeline; 230-hydrogen exhaust pipeline; 240-transport pipeline. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0062] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0064] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0065] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0066] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

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

[0068] This embodiment provides a vehicle hydrogen system installation process for installing a vehicle hydrogen system 100. When assembling the vehicle hydrogen system 100, it is first necessary to assemble the hydrogen cylinders in the vehicle hydrogen system 100. In this embodiment, the vehicle hydrogen system 100 includes a first hydrogen cylinder group 120 and a second hydrogen cylinder group 130, wherein the first hydrogen cylinder group 120 has one hydrogen cylinder, and the second hydrogen cylinder group 130 has two hydrogen cylinders. It can be understood that the hydrogen cylinders are used to store hydrogen.

[0069] The automotive hydrogen system installation process includes the following steps:

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

[0071] S2: The second hydrogen gas group is placed on the chassis 110, and the first hydrogen gas cylinder group 120 and the second hydrogen gas cylinder group 130 are arranged at intervals.

[0072] S3: Threading the first hydrogen cylinder assembly 120 and the chassis 110 along the first direction with the first fastening bolt assembly 140.

[0073] S4: Threading the first hydrogen cylinder group 120 and the chassis 110 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 respectively located on two opposite sides of the first hydrogen cylinder group 120, and the first direction and the second direction are opposite.

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

[0075] S6: Threading the second hydrogen cylinder group 130 and the chassis 110 along the fourth direction with the fourth fastening bolt group 170; wherein the third fastening bolt group 160 and the fourth fastening bolt group 170 are respectively located on two 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 placing a 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 transported 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 swapped, and the order of S2 and S3 can also be swapped; 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 and other methods.

[0079] It should also be noted that each hydrogen cylinder is provided with a strap, which can be understood to connect the hydrogen cylinder group and the chassis 110, that is, to connect 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 group 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 relative to 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 respectively located on the sides of the two hydrogen cylinder groups, and the third fastening bolt group 160 and the fourth fastening bolt group 170 are also relatively arranged, so that the structure of the automobile hydrogen system 100 after installation is more stable, and the second hydrogen cylinder group 130 is not easy to shake or detach from the chassis 110.

[0081] In this embodiment, when the first hydrogen cylinder group 120 and the chassis 110 are connected by the first fastening bolt group 140 and the second fastening bolt group 150, the first fastening bolt group 140 needs to be inserted into the chassis 110 and the screw holes in the binding strap along the first direction, and then the first fastening bolt group 140 is twisted to connect the chassis 110 and the first hydrogen cylinder group 120; the second fastening bolt group 150 is inserted into the chassis 110 and the screw holes in the binding strap along the second direction, and then the second fastening bolt group 150 is twisted to connect the chassis 110 and the first hydrogen cylinder group 120; wherein the first direction and the second direction are opposite, so that the first hydrogen cylinder group 120 receives opposite forces, thereby balancing the stress on the first hydrogen cylinder group 120, avoiding the first hydrogen cylinder group 120 from shaking or detaching, improving the structural stability of the automobile hydrogen system 100, improving the protection effect of the first hydrogen cylinder group 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 the second hydrogen cylinder group 130 and the chassis 110 are connected by 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 chassis 110 and the screw holes in the binding strap along the third direction, and the third fastening bolt group 160 is twisted to connect the chassis 110 and the second hydrogen cylinder group 130; the fourth fastening bolt group 170 is inserted into the chassis 110 and the screw holes in the binding strap along the fourth direction, and the fourth fastening bolt group 170 is twisted to connect the chassis 110 and the second hydrogen cylinder group 130; thereby, the force on the second hydrogen cylinder group 130 is balanced, the structural stability of the gas-hydrogen system is improved, the protection effect on the second hydrogen cylinder group 130 is improved, and the safety is improved.

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

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

[0086] Specifically, it can be understood that the chassis 110 is parallel to the ground, and the first fastening bolt group 140 and the second fastening bolt group 150 are inserted vertically, and the third fastening bolt group 160 and the fourth fastening bolt group 170 are inserted obliquely. Because the first hydrogen cylinder group 120 is arranged on the rear beam 111, that is, arranged at the rear of the car, and the second hydrogen cylinder group 130 is spaced from the first hydrogen cylinder group 120, therefore, the second hydrogen cylinder group 130 is arranged at a position close to the middle of the car, and other structures are arranged on both sides of the second hydrogen cylinder group 130, so the third fastening bolt group 160 and the fourth fastening bolt group 170 need to be inserted obliquely to avoid contact or collision between the third fastening bolt group 160 and the fourth fastening bolt group 170 and other structures during movement, thereby improving safety.

[0087] For further information, please refer to Figure 1-Figure 7 The fastening bolt group includes bolts, end caps, springs, and nuts, etc. The bolts and nuts cooperate to connect the chassis 110 and the straps. The spring is sleeved on the bolts, and one end of the spring abuts against the end cap. A sleeve 112 is provided on the chassis 110. The bolts in the fastening bolt group are inserted into the sleeve 112 and the screw holes in the straps, so that the chassis 110 and the straps are connected. After the assembly is completed, the other end of the spring abuts against the sleeve 112.

[0088] It can be understood that the fastening bolt group is an anti-loosening bolt, and the inner wall of the sleeve 112 is provided with threads to cooperate 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 disposed on the rear beam 111 is H1, wherein 8mm≤H1≤12mm. Specifically, the height of the sleeve 112 may be 8mm, 9mm or 11mm.

[0090] The end cover in the third fastening bolt group 160 is the first end cover 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 cover 161 to the surface of the first bracket 113 is H2, wherein 85 mm ≤ H2 ≤ 90 mm. Specifically, H2 can be 86 mm, 88 mm, and 90 mm.

[0091] The end cover in the fourth fastening bolt group 170 is the second end cover 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 cover 171 to the surface of the second bracket 114 is H3, wherein 145 mm ≤ H3 ≤ 150 mm. Specifically, H3 can be 145 mm, 147 mm, and 149 mm.

[0092] It should be noted that if the values ​​of H1, H2 and H3 are smaller than the above value 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 value range, thread slippage will occur.

[0093] According to the above structural setting, in this embodiment, please refer to Figure 1-Figure 7 In this embodiment, the chassis 110 further includes a third bracket 115, which is located at one side of the first hydrogen cylinder group 120, and the third bracket 115 is connected to the first hydrogen cylinder group 120 through a second fastening bolt.

[0094] It should be noted that the ends of the hydrogen cylinders are all provided with cylinder valves, the ends of the third bracket 115 are provided with positioning holes, and the distance from the cylinder valves in the first hydrogen cylinder group 120 to the positioning holes in the third bracket 115 is L1, wherein 50 mm ≤ L1 ≤ 54 mm. Specifically, L1 may be 51 mm or 53 mm.

[0095] In this embodiment, the chassis 110 further includes a fourth bracket 116, which is located at one side of the second hydrogen cylinder group 130, and the fourth bracket 116 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, and the distance from the bottle valve of the second hydrogen bottle group 130 to the positioning hole in the fourth bracket 116 is L2, wherein 77 mm ≤ L1 ≤ 82 mm. Specifically, L2 may be 77 mm or 80 mm.

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

[0098] In the present embodiment, a plurality 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] For further information, please refer to Figure 1-Figure 9 , Figure 8 A schematic diagram of the installation process of the connecting pipe 180, the multi-way valve 190 and the pressure sensor 210 in the automobile hydrogen system installation process provided in this embodiment; Fig. 9 for Figure 2 A partial enlarged view of point A in the middle.

[0100] The automobile hydrogen system 100 in this embodiment further includes a connecting pipeline 180, a multi-way valve 190 and a pressure sensor 210; with respect to the connecting pipeline 180, the multi-way valve 190 and the pressure sensor 210, the automobile hydrogen system installation process further includes:

[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 twist the pressure sensor 210 clockwise to thread the pressure sensor 210 and the multi-way valve 190, and then twist the pressure sensor 210 counterclockwise.

[0104] S9: Determine whether there is obvious resistance during the twisting process; if there is obvious 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, since the connecting pipeline 180 and the pressure sensor 210 are small in size, they need to be connected manually. During the connection process, a detector can be set to detect the torsional resistance.

[0107] Moreover, in other embodiments, the order of S6 and S7 can be swapped, and S6 and S7 can be performed after completing S8, S9 and S10. That is, in other embodiments, the order of the automobile 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] According to the above content, the step of twisting the pressure sensor 210 counterclockwise includes:

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

[0110] It is understandable that 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, thereby causing 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, and then the connecting pipeline 180, the multi-way valve 190 and the pressure sensor 210 are installed. In other embodiments, the connecting pipeline 180, the multi-way valve 190 and the pressure sensor 210 may also be installed first, and then the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130 are installed.

[0112] For further information, please refer to Figure 1-Figure 11 , Fig.10 A schematic diagram of the installation process of the hydrogen inlet pipeline 220 in the automobile hydrogen system installation process provided in this embodiment; Fig.11 A schematic diagram of the installation process of a 1 / 4-inch pipeline in the automobile hydrogen system installation process provided in this embodiment.

[0113] The automobile hydrogen system 100 in this embodiment further includes a hydrogen inlet pipeline 220. For the hydrogen inlet pipeline 220, the automobile hydrogen system installation process further includes:

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

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

[0116] It can be understood that the other end of the hydrogen inlet pipeline 220 is used to communicate with an external hydrogen supply device.

[0117] According to the above content, the two ends of the 1 / 4 inch pipe in this embodiment are respectively provided with a pipe pier and a joint, and a pipe nut is sleeved on the joint; the installation steps of the automobile hydrogen installation process for two 1 / 4 inch pipes include:

[0118] S11.1: Butt the pier of one 1 / 4-inch pipe against the fitting of another 1 / 4-inch pipe.

[0119] S11.2: Twist the fitting and the tube nut to thread the fitting and the tube nut together.

[0120] It should be noted that the step of twisting the joint and the tube nut includes: twisting the joint and the tube nut in a preset torque; wherein 22N·m≤preset torque≤34N·m. Specifically, the preset torque may be 23N·m, 28N·m, 30N·m and 33N·m.

[0121] If the torque is too large or too small, the connection may become unstable, resulting in hydrogen leakage and causing safety hazards.

[0122] And because the diameter of the 1 / 4 inch pipeline is small, it needs to be installed manually to avoid damage to the 1 / 4 inch pipeline. In this embodiment, a detector can be provided to detect the torque to ensure that the torque is within the above range.

[0123] For further information, please refer to Figure 1-Figure 13 , Fig.12 A schematic diagram of the installation process of the hydrogen exhaust pipeline 230 and the delivery pipeline 240 in the automobile hydrogen system installation process provided in this embodiment; Fig.13 A schematic diagram of the installation process of a 3 / 8-inch pipeline in the automobile hydrogen system installation process provided in this embodiment.

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

[0125] S13: Threading a plurality of 3 / 8-inch pipes in sequence to form an exhaust pipe and a delivery pipe 240;

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

[0127] According to the above settings, the installation steps of the automotive hydrogen installation process for two 3 / 8-inch pipes include:

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

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

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

[0131] Understandably, since the diameters of the two 3 / 8-inch pipes are relatively small, manual installation is required to avoid damaging the 3 / 8-inch pipes. In addition, before installation, the two 3 / 8-inch pipes must be marked at the 6 o'clock position of the nut, so that when connecting, the nut's positioning mark can be stopped at the 9 o'clock position by twisting 250°, and 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 exhaust pipeline 230 and the delivery pipeline 240 can be interchanged.

[0133] In summary, the automobile hydrogen system installation process is to install the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130 in the chassis 110 at intervals, so that the first hydrogen cylinder group 120 and the second hydrogen cylinder group 130 have reserved space for installing other structures; and the first fastening bolt and the second fastening bolt are respectively arranged on both sides of the first hydrogen cylinder group 120, and the insertion direction of the first fastening bolt is opposite to the insertion direction of the second fastening bolt, so that the force between the chassis 110 and the first hydrogen cylinder group 120 is balanced, thereby avoiding the first hydrogen cylinder group 120 from shaking and detaching, thereby avoiding hydrogen leakage and accidents, and improving safety. Similarly, the third fastening bolt and the fourth fastening bolt are respectively arranged on both sides of the second hydrogen cylinder group 130, and the insertion direction of the third fastening bolt is opposite to the insertion direction of the fourth fastening bolt, thereby avoiding the second hydrogen cylinder group 130 from shaking and detaching, thereby improving the stability of the structure and improving the protection effect of the second hydrogen cylinder group 130.

[0134] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A vehicle hydrogen system installation process, characterized in that: include: Placing the first hydrogen cylinder group (120) on the rear beam (111) of the chassis (110); Placing a second hydrogen cylinder group (130) on the chassis (110) such that the first hydrogen cylinder group (120) and the second hydrogen cylinder group (130) are spaced apart; Using a first fastening bolt group (140) to threadably connect the first hydrogen cylinder group (120) and the chassis (110) along a first direction; The first hydrogen cylinder group (120) and the chassis (110) are threadedly connected by a second fastening bolt group (150) along a second direction; wherein the first fastening bolt group (140) and the second fastening bolt group (150) are respectively located on two opposite sides of the first hydrogen cylinder group (120), and the first direction and the second direction are opposite; Using a third fastening bolt group (160) to threadably connect the second hydrogen cylinder group (130) and the chassis (110) along a third direction; The second hydrogen cylinder group (130) and the chassis (110) are threadedly connected by a fourth fastening bolt group (170) along a 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 group (130), and the third direction is opposite to the fourth direction.

2. The automobile hydrogen system installation process according to claim 1, characterized in that: The automobile hydrogen system installation process also includes: Connecting one end of a connecting pipe (180) to the first hydrogen cylinder group (120) and the second hydrogen cylinder group (130); Connecting the other end of the connecting pipeline (180) to the multi-way valve (190); First, the pressure sensor (210) is twisted clockwise to threadably connect the pressure sensor (210) to the multi-way valve (190), and then the pressure sensor (210) is twisted counterclockwise. The twisting is repeated multiple times so that the resistance gradually decreases.

3. The automobile hydrogen system installation process according to claim 2, characterized in that: The step of twisting the pressure sensor (210) counterclockwise comprises: Twisting the pressure sensor (210) counterclockwise at a first preset twisting angle; Among them, 40°≤the first preset twisting angle≤50°.

4. The automobile hydrogen system installation process according to claim 1, characterized in that: The automobile hydrogen system installation process also includes: Place the pipe pier of one 1 / 4-inch pipe against the joint of another 1 / 4-inch pipe; Twisting the joint and the pipe nut to thread the joint and the pipe nut; Connecting a plurality of the 1 / 4 inch pipes in sequence to form a hydrogen inlet pipe (220); One end of the hydrogen inlet pipeline (220) is connected to the first hydrogen cylinder group (120) and the second hydrogen cylinder group (130); wherein the hydrogen inlet pipeline (220) is used to transport hydrogen to the first hydrogen cylinder group (120) and the second hydrogen cylinder group (130).

5. The automobile hydrogen system installation process according to claim 4, characterized in that: The step of twisting the joint and the tube nut comprises: Twisting the joint and the tube nut in a manner of a preset torque; Among them, 22N·m≤the preset torsional torque≤34N·m.

6. The automobile hydrogen system installation process according to claim 1, characterized in that: The automobile hydrogen system installation process also includes: Connect one end of a 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 threadedly connected; Threading a plurality of the 3 / 8-inch pipes in sequence to form an exhaust pipe; Connecting one end of the exhaust pipeline to the first hydrogen cylinder group (120); wherein the exhaust pipeline is used to discharge excess hydrogen; Threading a plurality of the 3 / 8-inch pipes in sequence to form a delivery pipe (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 automobile hydrogen system installation process according to claim 6, characterized in that: The step of twisting the 3 / 8 inch pipe clockwise also includes: Twisting the 3 / 8 inch pipe clockwise at a second preset twist angle; Among them, 240°≤the second preset twisting angle≤260°.

8. The automobile hydrogen system installation process according to any one of claims 1 to 7, characterized in that: The first direction and the second direction are both perpendicular to the extension direction of the rear beam (111); and / or, The third direction and the fourth direction are both inclined relative to the chassis (110).

9. The automobile hydrogen system installation process according to any one of claims 1 to 7, characterized in that: The rear beam (111) is provided with a sleeve (112), and the first fastening bolt group (140) passes through the sleeve (112) to be connected 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) comprises a first bracket (113), the third fastening bolt group (160) is connected to the first bracket (113); the third fastening bolt group (160) comprises a first end cover (161), and the distance from the highest point of the first end cover (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 cover (171), and the distance from the lowest point of the second end cover (171) to the surface of the second bracket (114) is greater than or equal to 145 mm-150 mm.

10. The automobile hydrogen system installation process according to any one of claims 1 to 7, characterized in that: The chassis (110) further comprises a third bracket (115), the third bracket (115) being located at one side of the first hydrogen bottle group (120); the distance from the bottle valve of the first hydrogen bottle 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) further comprises a fourth bracket (116); the fourth bracket (116) is located on one side of the second hydrogen bottle group (130); and the distance from the bottle valve of the second hydrogen bottle 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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