Fuel tank mounting structure and automobile

Abstract

The utility model relates to a fuel tank mounting structure and an automobile, the fuel tank mounting structure is arranged at the position of a rear floor of an automobile body, the rear floor is provided with a rear cross beam and a front section part which are arranged at an interval along the front-back direction, the fuel tank mounting structure comprises a front connecting piece and a rear connecting piece, the front connecting piece is arranged at the front section part, and the front connecting piece is provided with a closed cavity; the front support assembly is connected to the front connecting piece, and the front support assembly is used for connecting the fuel tank to the front connecting piece; the rear cross beam connecting piece and the front connecting piece are arranged in a spaced mode, and the rear cross beam connecting piece connects the side, away from the front connecting piece, of the fuel tank to the rear cross beam. The oil tank is mounted at a rear cross beam of the rear floor through a rear cross beam connecting piece; the front connecting piece is provided with the closed cavity, so that a fuel tank mounting front beam can be omitted, and the weight of the front connecting piece can be reduced; by arranging the rear cross beam connecting piece, a rear beam for mounting the fuel tank can be omitted, and the fuel tank can be stably fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel tank installation structures, in particular to a fuel tank installation structure and a car. Background Art

[0002] For traditional fuel vehicles and hybrid new energy vehicles, the fuel tank installation structure on the body is usually to directly configure a fuel tank installation front beam and a fuel tank installation rear beam connected to the body longitudinal beam. Although this structure has high strength and rigidity, it significantly increases the weight and cost of the body.

[0003] Therefore, the prior art has defects and shortcomings and needs further improvement and development. Utility Model Content

[0004] The utility model aims to provide a fuel tank installation structure and a vehicle, so as to solve the problem that the installation structure of the fuel tank in the prior art needs to be configured and measured separately, resulting in an increase in vehicle body weight and cost.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a fuel tank mounting structure, wherein the fuel tank mounting structure is arranged at the rear floor position of the vehicle body, the rear floor has a rear cross beam and a front section arranged at intervals in the front-to-back direction, and the fuel tank mounting structure includes:

[0006] A front connecting member, the front connecting member is arranged at the front section, and the front connecting member is provided with a closed cavity;

[0007] A front bracket assembly, the front bracket assembly is connected to the front connecting member, and the front bracket assembly is used to connect the fuel tank to the front connecting member;

[0008] A rear cross beam connecting member is arranged at a distance from the front connecting member, and the rear cross beam connecting member connects a side of the fuel tank away from the front connecting member to the rear cross beam.

[0009] According to the above technical means, the fuel tank is installed on the front section of the rear floor through the front connecting member and the front bracket assembly, and the fuel tank is installed on the rear cross beam of the rear floor through the rear cross beam connecting member; by providing the front connecting member with a closed cavity, the front beam for installing the fuel tank can be omitted and the weight of the front connecting member can be reduced; by providing the rear cross beam connecting member, the rear beam for installing the fuel tank can be omitted and the stable fixation of the fuel tank can be achieved.

[0010] Furthermore, the front connecting member includes:

[0011] A front section connecting piece, one end of which is used to connect to the front section;

[0012] A front section reinforcement, wherein the front section reinforcement is connected to the front section connecting member, the closed cavity is formed by the front section connecting member and the front section reinforcement, and the front bracket assembly is installed on the front section reinforcement.

[0013] According to the above technical means, the fuel tank is connected by the front section reinforcement, and the front section reinforcement is installed on the front section of the rear floor by the front section connector, so that the front beam for installing the fuel tank can be omitted and the weight and cost of the front connector can be reduced. By providing the front section reinforcement, the structural strength of the front connector can be effectively increased and the stable connection to the fuel tank can be guaranteed.

[0014] Furthermore, the front section connecting member includes a first connecting plate, a connecting vertical plate and a second connecting plate which are connected in sequence in a Z shape, the first connecting plate and the second connecting plate are both connected to the front section reinforcement member, the first connecting plate is used to connect the front section, the first connecting plate and the connecting vertical plate are both provided with a plurality of first reinforcing ribs, the first connecting plate is also provided with a plurality of first sinkers, and the plurality of first sinkers are each provided with a first drainage hole.

[0015] According to the above-mentioned technical means, by setting the front section connecting member as a first connecting plate, a connecting vertical plate and a second connecting plate which are connected in sequence in a Z shape, it provides a guarantee for cooperating with the front section reinforcement member to form a closed cavity, and also facilitates the connection of the first connecting plate and the second connecting plate with the front section reinforcement member. At the same time, by providing a plurality of first reinforcing ribs on the first connecting plate and the connecting vertical plate, the structural strength of the front section reinforcement member can be effectively increased. By providing a first sinking platform and a first drainage hole in the first sinking platform, it can not only play a role in connection and positioning for the assembly between the front section connecting member and the front section reinforcement member, but also effectively discharge the liquid in the closed cavity to protect the structure of the front connecting member.

[0016] Furthermore, the front section reinforcement includes a first reinforcement plate, a reinforcement vertical plate and a second reinforcement plate which are connected in sequence in a Z shape, the first reinforcement plate is connected to the first connecting plate, the second reinforcement plate is connected to the second connecting plate, and the first reinforcement plate, the reinforcement vertical plate and the second reinforcement plate are all connected to the front bracket assembly; the reinforcement vertical plate is also provided with a plurality of second reinforcement ribs, one end of a plurality of second reinforcement ribs extends to the first reinforcement plate, and the other end of a plurality of second reinforcement ribs extends to the second reinforcement plate; the first reinforcement plate is also provided with a plurality of second sinkers and a plurality of first steps, a plurality of second sinkers are provided with second drainage holes, a plurality of first steps are convexly provided in a direction away from the first connecting plate, and a plurality of bosses are also provided on the second reinforcement plate.

[0017] According to the above technical means, the first reinforcing plate is connected to the first connecting plate, and the second reinforcing plate is connected to the second connecting plate, so that a closed cavity is formed between the front connecting member and the front reinforcing member, thereby effectively reducing the weight and cost of the front connecting member; by setting the second reinforcing rib and controlling the two ends of the second reinforcing rib to extend to the first reinforcing plate and the second reinforcing plate, the structural strength of the reinforced vertical plate is increased, and by setting the second sinker and the second drainage hole located in the second sinker, it can not only play a role in connection and positioning the assembly between the front connecting member and the front reinforcing member, but also effectively discharge the liquid in the closed cavity to protect the structure of the front connecting member; by setting the first step, a fitting gap is formed to serve as a gas channel.

[0018] Furthermore, the fuel tank installation structure also includes a front section reinforcement piece arranged between the first reinforcement plate and the reinforcement vertical plate, and the front section reinforcement piece includes an L-shaped reinforcement body and a plurality of third sinkers arranged on the reinforcement body.

[0019] According to the above-mentioned technical means, by setting up an L-shaped front section reinforcement part, the structural strength of the first reinforcement plate and the reinforcement vertical plate can be effectively increased, and the supporting strength of the front section reinforcement part to the front bracket assembly can be effectively increased; by setting up a third sinker, the structural strength of the front section reinforcement part can be increased, and the assembly between the front section reinforcement part and the front section reinforcement part can be facilitated.

[0020] Furthermore, two front bracket assemblies are provided, and both of the two front bracket assemblies include:

[0021] An installation front bracket, wherein the installation front bracket is connected to the first reinforcement plate;

[0022] A front bracket reinforcement, one end of which is connected to the front bracket installation, and the front bracket reinforcement is also connected to the reinforcement vertical plate and the second reinforcement plate respectively, and the front bracket reinforcement is used to connect the fuel tank.

[0023] According to the above technical means, by setting up two of the front bracket assemblies, the connection stability of the fuel tank can be effectively improved; by setting the front bracket assembly to install the front bracket and the front bracket reinforcement, the structure of the front bracket assembly can be set according to the fuel tank structure, and the front bracket and the front bracket reinforcement are installed to cooperate with the fuel tank to be installed on the front connecting piece, which can play a certain buffering role and effectively protect the structure of the fuel tank.

[0024] Further, the front mounting bracket includes:

[0025] A bracket body, wherein the bracket body is provided with a third drainage hole and a first connection hole, and the first connection hole is connected to the front bracket reinforcement;

[0026] The bracket side panel comprises a first side panel, a second side panel and a third side panel which are arranged in sequence in a U-shape, the first side panel, the second side panel and the third side panel are respectively arranged at adjacent edges of the bracket body, and a connecting flap for connecting the first reinforcing plate is arranged at one end of the second side panel which is away from the bracket body.

[0027] According to the above technical means, the connecting flap of the second side plate is connected to the first reinforcing plate, so that the installed front bracket has a certain buffering capacity, which can effectively protect the structure of the fuel tank. At the same time, the third drainage hole can effectively prevent liquid from accumulating on the bracket body. By setting the first connecting hole, the connection between the installed front bracket and the front bracket reinforcement is facilitated.

[0028] Furthermore, the front bracket reinforcement comprises:

[0029] A bracket reinforcement body, wherein the bracket reinforcement body has a bracket connection section and a fuel tank connection section arranged in an L shape, wherein the bracket connection section and the fuel tank connection section each include a first side reinforcement plate, a reinforcement main plate, and a second side reinforcement plate arranged in a U shape;

[0030] A first side flap, the first side flap is arranged on a side of the first side reinforcing plate away from the reinforcing main plate, and the first side flap is connected to both the reinforcing vertical plate and the second reinforcing plate;

[0031] A second side flap, the second side flap is arranged on a side of the second side reinforcing plate away from the reinforcing main plate, and the second side flap is connected to both the reinforcing vertical plate and the second reinforcing plate;

[0032] a third side flap, the third side flap being arranged at the fuel tank connection section away from the bracket connection section, and the third side flap being connected to the first side reinforcement plate, the reinforcement main plate and the second side reinforcement plate, and the third side flap being also connected to the second reinforcement plate;

[0033] Among them, the first side flap and the second side flap are both provided with a plurality of second steps, the third side flap is provided with a third step, the reinforcing main board is also provided with a second connecting hole and a plurality of fourth sinkers, the second connecting hole is located in the area where the reinforcing main board is located in the bracket connecting section, the fourth sinker is located in the area where the reinforcing main board is located in the bracket connecting section, and a plurality of the fourth sinkers are each provided with a third connecting hole.

[0034] According to the above technical means, by setting the first side flap and the second side flap, the connection strength between the fuel tank connecting section and the second reinforcement plate is effectively improved; by setting the third side flap, the connection between the fuel tank connecting section and the second reinforcement plate is effectively improved; by setting a plurality of second steps on the first side flap and the second side flap, the structural strength of the first flap and the second flap can be effectively increased; by setting the third step, the structural strength of the third side flap is improved; by setting the second connecting hole, the front bracket and the front bracket reinforcement can be conveniently assembled in coordination with the first connecting hole; by setting the fourth sinker, it can play a guiding and positioning role in the process of installing the fuel tank on the front bracket reinforcement.

[0035] Furthermore, the rear cross beam connecting member includes:

[0036] A rear cross beam, the rear cross beam comprising a first cross beam side plate, a cross beam bottom plate and a second cross beam side plate arranged in a U shape, a first cross beam flap being arranged on a side of the first cross beam side plate away from the cross beam bottom plate, the first cross beam side plate and the first cross beam flap being used to connect a fuel tank, a second cross beam flap being arranged on a side of the second cross beam side plate away from the cross beam bottom plate, a plurality of fourth steps being arranged on the first cross beam flap and the second cross beam flap, the cross beam bottom plate being arranged with a rectangular sink, and a vehicle front pointing arrow and a fourth drainage hole being arranged on the rectangular sink;

[0037] Two rear beam reinforcements, both rear beam reinforcements are arranged in L shape, the two rear beam reinforcements are respectively arranged on both sides of the rectangular sink, and are respectively connected to the first cross beam side plate and the cross beam bottom plate, and rear beam reinforcement flaps are arranged at both ends of the beam reinforcement along the width direction.

[0038] According to the above technical means, by setting the rear cross beam as a U-shaped structure, the weight of the rear cross beam connecting member can be effectively reduced; by setting the fourth step, the structural strength of the first cross beam flap and the second cross beam flap is improved; by setting a rectangular sinker, the structural strength of the cross beam bottom plate can be increased, and by setting a directional arrow and a fourth drainage hole on the rectangular sinker, it can serve as an indicator for the installation of the fuel tank; by setting two rear beam reinforcements, the structure of the first cross beam side plate and the cross beam bottom plate can be reinforced to ensure the assembly stability of the fuel tank.

[0039] In order to achieve the above-mentioned purpose, another technical solution adopted by the present utility model is as follows: an automobile, wherein the automobile includes the fuel tank installation structure as described above.

[0040] According to the above technical means, the automobile adopts the fuel tank installation structure provided in the present application, thereby making it possible to effectively reduce the weight and cost of the automobile body while stably installing the fuel tank.

[0041] Beneficial effects of the utility model:

[0042] The utility model installs the fuel tank on the front section of the rear floor through the front connecting piece and the front bracket assembly, and installs the fuel tank on the rear cross beam of the rear floor through the rear cross beam connecting piece; by arranging the closed cavity of the front connecting piece, the front beam for installing the fuel tank can be omitted, and the weight of the front connecting piece can be reduced; by arranging the rear cross beam connecting piece, the rear beam for installing the fuel tank can be omitted, and the stable fixation of the fuel tank can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the matching relationship between the fuel tank installation structure, the fuel tank and the rear floor provided in the utility model;

[0044] Figure 2 It is a schematic diagram of the three-dimensional structure of the fuel tank installation structure provided in the utility model;

[0045] Figure 3 A schematic cross-sectional view along the front-to-back direction of the vehicle body showing the matching relationship between the front connecting member, the front bracket assembly and the front-end reinforcement member of the fuel tank mounting structure provided in the utility model;

[0046] Figure 4 A schematic diagram of the three-dimensional structure of a front section connecting piece of a front connecting piece of a fuel tank mounting structure provided in the utility model;

[0047] Figure 5 A schematic diagram of the three-dimensional structure of a front section reinforcement member of a front connecting member of a fuel tank mounting structure provided in the utility model;

[0048] Figure 6 It is a three-dimensional schematic diagram of the matching relationship between the front section reinforcement member and the front end reinforcement member of the fuel tank installation structure provided in the utility model;

[0049] Figure 7 It is a three-dimensional structural schematic diagram of the front end reinforcement member of the fuel tank mounting structure provided in the utility model;

[0050] Figure 8 A three-dimensional schematic diagram of the matching relationship between the front section reinforcement and the front bracket assembly of the fuel tank mounting structure provided in the utility model;

[0051] Fig. 9 It is a three-dimensional exploded structural schematic diagram of the front bracket assembly of the fuel tank mounting structure provided in the utility model;

[0052] Fig.10 A schematic diagram of a three-dimensional exploded structure of the front bracket assembly of the fuel tank mounting structure provided in the utility model from another perspective;

[0053] Fig.11 It is a three-dimensional structural schematic diagram of the rear cross beam connecting member of the fuel tank mounting structure provided in the utility model;

[0054] in,

[0055] 1-Fuel tank installation structure; 2-Front connector; 3-Front bracket assembly; 4-Rear crossbeam connector; 5-Enclosed cavity; 6-Front section reinforcement; A-Rear floor; B-Fuel tank; 21-Front section connector; 22-Front section reinforcement; 211-First connecting plate; 212-Connecting vertical plate; 213-Second connecting plate; 214-First reinforcement rib; 215-First sink; 216-First drainage hole; 221-First fuel tank 222-reinforced vertical plate; 223-second reinforced plate; 224-second reinforced rib; 225-second sink; 226-first step; 227-second drainage hole; 228-boss; 31-install front bracket; 32-front bracket reinforcement; 311-bracket body; 312-third drainage hole; 313-first connecting hole; 314-bracket side plate; 315-first side plate; 316-second side plate; 317-third side plate; 318-connecting flap; 321-bracket reinforcement body; 322-bracket connecting section; 323-tank connecting section; 324-first side reinforcement plate; 325-reinforced main board; 326-second side reinforcement plate; 327-first side flap; 328-second side flap; 329-third side flap; 320-second step; 32a-third step; 32b-second connecting hole; 32c-fourth sink; 3 2d-third connecting hole; 41-rear cross beam; 42-rear beam reinforcement; 411-first cross beam side plate; 412-cross beam bottom plate; 413-second cross beam side plate; 414-first cross beam flap; 415-second cross beam flap; 416-fourth step; 417-rectangular sink; 418-arrow pointing to the front of the vehicle; 419-fourth drainage hole; 421-rear beam reinforcement flap; 61-reinforcement body; 62-third sink. DETAILED DESCRIPTION

[0056] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented through other different specific implementations.

[0057] Please refer to Figures 1 to 3In a first embodiment of the utility model, a fuel tank mounting structure 1 is provided. The fuel tank mounting structure 1 mounts a fuel tank B on a rear floor A of a vehicle body, that is, the fuel tank mounting structure 1 is arranged at the rear floor A of the vehicle body. The rear floor A has a rear cross beam and a front section arranged at intervals along the front-to-back direction, and the fuel tank B is mounted between the rear cross beam and the front section. The fuel tank mounting structure 1 in the present application omits the front and rear two additional mounting volumes separately configured for the fuel tank B compared to the prior art, thereby effectively reducing the weight and cost of the fuel tank mounting structure 1.

[0058] The fuel tank mounting structure 1 includes a front connecting member 2, a front bracket assembly 3 and a rear cross beam connecting member 4. The front connecting member 2 is arranged at the front section, that is, the fuel tank mounting structure 1 is connected to the front section of the rear floor A through the front connecting member 2, and the front connecting member 2 is provided with a closed cavity 5, thereby effectively reducing the weight of the front connecting member 2; the front bracket assembly 3 is connected to the front connecting member 2, and the front bracket assembly 3 is used to connect the fuel tank B to the front connecting member 2. It can be seen that the fuel tank B is connected to the front connecting member 2 through the front bracket assembly 3 in turn, and then connected to the front section through the front connecting member 2; the rear cross beam connecting member 4 is spaced apart from the front connecting member 2, that is, the fuel tank B is installed between the rear cross beam connecting member 4 and the front connecting member 2, and the rear cross beam connecting member 4 connects the side of the fuel tank B away from the front connecting member 2 to the rear cross beam. By setting the rear cross beam connecting member 4, the rear beam for installing the fuel tank B can be omitted, and the stable fixation of the fuel tank B can be reduced.

[0059] Please refer to Figure 3 In some embodiments, the front connecting member 2 includes a front section connecting member 21 and a front section reinforcement member 22, one end of the front section connecting member 21 is used to connect the front section; the front section reinforcement member 22 is connected to the front section connecting member 21, the closed cavity 5 is composed of the front section connecting member 21 and the front section reinforcement member 22, and the front bracket assembly 3 is installed on the front section reinforcement member 22; it can be seen that the fuel tank B is connected to the front section reinforcement member 22 through the front bracket assembly 3, and then connected to the front section of the rear floor A through the front section connecting member 21, so that the front beam of the fuel tank B can be omitted, the weight and cost of the front connecting member 2 can be reduced, and the structural strength of the front connecting member 2 can be effectively increased to ensure the stable connection of the fuel tank B.

[0060] Please refer to Figure 3 and Figure 4In some embodiments, the front section connecting member 21 includes a first connecting plate 211, a connecting vertical plate 212 and a second connecting plate 213, and the first connecting plate 211, the connecting vertical plate 212 and the second connecting plate 213 are connected in sequence in a Z shape, thereby providing a guarantee for cooperating with the front section reinforcement member 22 to form a closed cavity 5, and also facilitating the connection of the first connecting plate 211 and the second connecting plate 213 to the front section reinforcement member 22; the first connecting plate 211 is used to connect the front section, and the first connecting plate 211 and the connecting vertical plate 212 are both provided with a plurality of first reinforcing ribs 214, which can effectively increase the structural strength of the front section reinforcement member 22; the first connecting plate 211 is also provided with a plurality of first sinks 215, and the plurality of first sinks 215 are each provided with a first drainage hole 216, which can not only play a role in connecting and positioning the assembly between the front section connecting member 21 and the front section reinforcement member 22, but also effectively discharge the liquid in the closed cavity 5 to protect the structure of the front connecting member 2. Specifically, the first sink 215 is disposed at the lowest area of ​​the first connecting plate 211 toward the connecting vertical plate 212 , so as to facilitate the liquid on the first connecting plate 211 to flow into the first sink 215 and be discharged through the first drainage hole 216 .

[0061] Please refer to Figure 3 and Figure 5In some embodiments, the front section reinforcement 22 includes a first reinforcement plate 221, a reinforcement vertical plate 222 and a second reinforcement plate 223. The first reinforcement plate 221, the reinforcement vertical plate 222 and the second reinforcement plate 223 are connected in sequence in a Z shape, thereby providing a guarantee for cooperating with the front section connection member 21 to form a closed cavity 5. The first reinforcement plate 221 is connected to the first connecting plate 211. Further, the first reinforcement plate 221 and the first connecting plate 211 are spot welded or riveted, and the second reinforcement plate 223 is connected to the second connecting plate 213. Further, the second reinforcement plate 223 and the second connecting plate 213 are spot welded or riveted, thereby forming a closed cavity 5 between the front section connection member 21 and the front section reinforcement 22, effectively reducing the weight and cost of the front connection member 2; the first reinforcement plate 221, the reinforcement vertical plate 222 and the second reinforcement plate 223 are all connected to the front bracket assembly 3, effectively improving the support stability of the front bracket assembly 3; the reinforcement vertical plate 222 is also provided with a plurality of second reinforcement ribs 22 4. One ends of several second reinforcing ribs 224 extend to the first reinforcing plate 221, and the other ends of several second reinforcing ribs 224 extend to the second reinforcing plate 223, thereby increasing the structural strength of the reinforcing vertical plate 222; several second sinks 225 and several first steps 226 are also provided on the first reinforcing plate 221, and several first steps 226 are convexly arranged in the direction away from the first connecting plate 211; by providing several first steps 226, the structural strength of the first reinforcing plate 221 is effectively increased, thereby forming a matching gap to serve as a gas channel; several second sinks 225 are provided with second drainage holes 227, thereby not only guiding and positioning the assembly between the front connecting member 21 and the front reinforcing member 22, but also effectively discharging the liquid in the closed cavity 5 to prevent the accumulated liquid from corroding the front connecting member 2 and protecting the structure of the front connecting member 2; several bosses 228 are also provided on the second reinforcing plate 223, thereby effectively increasing the structural strength of the second reinforcing plate 223. Specifically, the second sink 225 is disposed at the lowest area of ​​the first reinforcing plate 221 toward the reinforcing vertical plate 222 , so as to facilitate the liquid on the first reinforcing plate 221 to flow into the second sink 225 and be discharged through the second drainage hole 227 .

[0062] Please refer to Figure 6 and Figure 7In some embodiments, the fuel tank mounting structure 1 further includes a front section reinforcement member 6, which is arranged between the first reinforcement plate 221 and the reinforcement vertical plate 222. The front section reinforcement member 6 includes a reinforcement body 61 and a plurality of third sinking platforms 62. The reinforcement body 61 is arranged in an L shape, thereby effectively increasing the structural strength of the first reinforcement plate 221 and the reinforcement vertical plate 222, and increasing the supporting strength of the front section reinforcement member 22 to the front bracket assembly 3; the plurality of third sinking platforms 62 are arranged on the reinforcement body 61, which can not only increase the structural strength of the front section reinforcement member 6, but also facilitate the assembly between the front section reinforcement member 6 and the front section reinforcement member 22. Specifically, the front section reinforcement member 6 is spot welded or riveted to the front section reinforcement member 22, and there is a gap of 3mm-8mm between the front section reinforcement member 6 and the front section reinforcement member 22 in the area other than the non-connection point (spot welding point or riveting point), and the above gap is provided for the relative deformation between the front section reinforcement member 6 and the front section reinforcement member 22, providing space.

[0063] Please refer to Figure 1 , Figure 2 and Figure 8 In some embodiments, two front bracket assemblies 3 are provided, and the fuel tank B is connected to the front connecting member 2 through the two front bracket assemblies 3, thereby effectively improving the connection stability of the fuel tank B; the two front bracket assemblies 3 each include a mounting front bracket 31 and a front bracket reinforcement 32, and the mounting front bracket 31 is connected to the first reinforcement plate 221; one end of the front bracket reinforcement 32 is connected to the mounting front bracket 31, and the front bracket reinforcement 32 is also connected to the reinforcement vertical plate 222 and the second reinforcement plate 223 respectively, and the front bracket reinforcement 32 is used to connect the fuel tank B, that is, the fuel tank B is directly connected to the front bracket reinforcement 32, and then connected to the mounting front bracket 31 through the front bracket reinforcement 32; by setting the front bracket assembly 3 to the mounting front bracket 31 and the front bracket reinforcement 32, the structure of the front bracket assembly 3 can be set according to the structure of the fuel tank B, and the mounting front bracket 31 cooperates with the front bracket reinforcement 32 to mount the fuel tank B on the front connecting member 2, which can play a certain buffering role and effectively protect the structure of the fuel tank B.

[0064] Please refer to Fig. 9 and Fig.10, in some embodiments, the pre-installation bracket 31 includes a bracket body 311 and a bracket side plate 314. A third drain hole 312 and a first connection hole 313 are provided on the bracket body 311, and the first connection hole 313 is connected to the pre-bracket reinforcement 32; the bracket side plate 314 includes a first side plate 315, a second side plate 316, and a third side plate 317 that are sequentially arranged in a U-shape. The first side plate 315, the second side plate 316, and the third side plate 317 are respectively arranged at adjacent edges of the bracket body 311, and a connection flap 318 for connecting the first reinforcement plate 221 is provided at one end of the second side plate 316 facing away from the bracket body 311. The connection flap 318 is spot-welded to the front section reinforcement 22; by connecting the connection flap 318 of the second side plate 316 to the first reinforcement plate 221, the pre-installation bracket 31 is provided with a certain buffering capacity, which can effectively protect the structure of the fuel tank B. At the same time, through the third drain hole 312, liquid aggregation on the bracket body 311 can be effectively prevented. By providing the first connection hole 313, the connection between the pre-installation bracket 31 and the pre-bracket reinforcement 32 is facilitated.

[0065] Please refer to Fig. 9 and Fig.10In some embodiments, the front bracket reinforcement 32 includes a bracket reinforcement body 321, a first side flap 327, a second side flap 328 and a third side flap 329. The bracket reinforcement body 321 has a bracket connection section 322 and a fuel tank connection section 323 arranged in an L shape. The bracket connection section 322 and the fuel tank connection section 323 each include a first side reinforcement plate 324, a reinforcement main board 325 and a second side reinforcement plate 326 arranged in a U shape. The first side flap 327 is arranged on the side of the first side reinforcement plate 324 away from the reinforcement main board 325. The first side flap 327 is connected to the reinforcement vertical The first side flap 327 is connected to the reinforcing vertical plate 222 and the second reinforcing plate 223 by spot welding or riveting; the second side flap 328 is arranged on the side of the second side reinforcing plate 326 away from the reinforcing main plate 325, and the second side flap 328 is connected to the reinforcing vertical plate 222 and the second reinforcing plate 223; specifically, the second side flap 328 is connected to the reinforcing vertical plate 222 and the second reinforcing plate 223 by spot welding or riveting; the third side flap 329 is arranged on the fuel tank connecting section 323 away from the bracket connecting section 322, The third side flap 329 is connected to the first side reinforcing plate 324, the reinforcing main plate 325 and the second side reinforcing plate 326. The third side flap 329 is also connected to the second reinforcing plate 223, thereby effectively improving the connection between the fuel tank connecting section 323 and the second reinforcing plate 223; the first side flap 327 and the second side flap 328 are both provided with a plurality of second steps 320, thereby effectively improving the connection strength between the fuel tank connecting section 323 and the second reinforcing plate 223; the third side flap 329 is provided with a third step 32a, thereby improving the structural strength of the third side flap 329; the reinforcing main plate 325 is provided with a plurality of second steps 320, thereby effectively improving the connection strength between the fuel tank connecting section 323 and the second reinforcing plate 223; the third side flap 329 is provided with a third step 32a, thereby improving the structural strength of the third side flap 329; The main board 325 is also provided with a second connecting hole 32b and a plurality of fourth recessed platforms 32c. The second connecting hole 32b is located in the area where the reinforced main board 325 is located in the bracket connecting section 322. By setting the second connecting hole 32b, the front bracket 31 and the front bracket reinforcement 32 can be conveniently assembled in cooperation with the first connecting hole 313; the fourth recessed platform 32c is located in the area where the reinforced main board 325 is located in the bracket connecting section 322. A plurality of the fourth recessed platforms 32c are provided with a third connecting hole 32d, which can play a guiding and positioning role in the process of installing the fuel tank B on the front bracket reinforcement 32.

[0066] Please refer to Fig.11In some embodiments, the rear cross beam connector 4 includes a rear cross beam member 41 and two rear beam reinforcement members 42; the rear cross beam member 41 includes a first cross beam side plate 411, a cross beam bottom plate 412 and a second cross beam side plate 413 arranged in a U-shape, thereby effectively reducing the weight of the rear cross beam connector 4; a first cross beam flap 414 is arranged on the side of the first cross beam side plate 411 away from the cross beam bottom plate 412, the first cross beam side plate 411 and the first cross beam flap 414 are used to connect the fuel tank B, and a second cross beam flap 415 is arranged on the side of the second cross beam side plate 413 away from the cross beam bottom plate 412, and a plurality of fourth steps 416 are arranged on the first cross beam flap 414 and the second cross beam flap 415, thereby improving the first cross beam flap 414 and the structural strength of the second crossbeam flap 415; the crossbeam bottom plate 412 is provided with a rectangular sink 417, and a front-pointing arrow 418 and a fourth drainage hole 419 arranged on the rectangular sink 417, which can serve as an indicator for the installation of the fuel tank B; the two rear beam reinforcements 42 are both arranged in an L shape, and the two rear beam reinforcements 42 are respectively arranged on both sides of the rectangular sink 417, and are respectively connected to the first crossbeam side plate 411 and the crossbeam bottom plate 412, and the two ends of the beam reinforcement along the width direction are provided with rear beam reinforcement flaps 421, and the height of the rear beam reinforcement flaps 421 is 2mm-5mm, which can reinforce the structure of the first crossbeam side plate 411 and the crossbeam bottom plate 412, and ensure the assembly stability of the fuel tank B.

[0067] A second embodiment of the present application also provides a car, which includes the above-mentioned fuel tank mounting structure 1. By adopting the fuel tank mounting structure 1 provided in the present application, the car can effectively reduce the weight and cost of the car body while stably installing the fuel tank.

[0068] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A fuel tank installation structure, characterized in that: The fuel tank mounting structure is arranged at the rear floor position of the vehicle body, and the rear floor has a rear cross beam and a front section arranged at intervals in the front-rear direction. The fuel tank mounting structure includes: A front connecting member, the front connecting member is arranged at the front section, and the front connecting member is provided with a closed cavity; A front bracket assembly, the front bracket assembly is connected to the front connecting member, and the front bracket assembly is used to connect the fuel tank to the front connecting member; A rear cross beam connecting member is arranged at a distance from the front connecting member, and the rear cross beam connecting member connects a side of the fuel tank away from the front connecting member to the rear cross beam.

2. The fuel tank installation structure according to claim 1, characterized in that: The front connecting member comprises: A front section connecting piece, one end of which is used to connect to the front section; A front section reinforcement, wherein the front section reinforcement is connected to the front section connecting member, the closed cavity is formed by the front section connecting member and the front section reinforcement, and the front bracket assembly is installed on the front section reinforcement.

3. The fuel tank installation structure according to claim 2, characterized in that: The front section connecting member includes a first connecting plate, a connecting vertical plate and a second connecting plate which are connected in sequence in a Z shape, the first connecting plate and the second connecting plate are both connected to the front section reinforcement member, the first connecting plate is used to connect the front section, the first connecting plate and the connecting vertical plate are both provided with a plurality of first reinforcing ribs, the first connecting plate is also provided with a plurality of first sinkers, and the plurality of first sinkers are each provided with a first drainage hole.

4. The fuel tank installation structure according to claim 3, characterized in that: The front section reinforcement member includes a first reinforcement plate, a reinforcement vertical plate and a second reinforcement plate which are connected in sequence in a Z shape, the first reinforcement plate is connected to the first connecting plate, the second reinforcement plate is connected to the second connecting plate, and the first reinforcement plate, the reinforcement vertical plate and the second reinforcement plate are all connected to the front bracket assembly; the reinforcement vertical plate is also provided with a plurality of second reinforcement ribs, one end of a plurality of second reinforcement ribs extends to the first reinforcement plate, and the other end of a plurality of second reinforcement ribs extends to the second reinforcement plate; the first reinforcement plate is also provided with a plurality of second sinks and a plurality of first steps, a plurality of second sinks are provided with second drainage holes, a plurality of first steps are convexly provided in a direction away from the first connecting plate, and a plurality of bosses are also provided on the second reinforcement plate.

5. The fuel tank installation structure according to claim 4, characterized in that: The fuel tank installation structure also includes a front section reinforcement piece arranged between the first reinforcement plate and the reinforcement vertical plate, and the front section reinforcement piece includes an L-shaped reinforcement body and a plurality of third sinks arranged on the reinforcement body.

6. The fuel tank installation structure according to claim 4, characterized in that: The front bracket assemblies are provided with two, and the two front bracket assemblies each include: An installation front bracket, wherein the installation front bracket is connected to the first reinforcement plate; A front bracket reinforcement, one end of which is connected to the front bracket installation, and the front bracket reinforcement is also connected to the reinforcement vertical plate and the second reinforcement plate respectively, and the front bracket reinforcement is used to connect the fuel tank.

7. The fuel tank installation structure according to claim 6, characterized in that: The front mounting bracket comprises: A bracket body, wherein the bracket body is provided with a third drainage hole and a first connection hole, and the first connection hole is connected to the front bracket reinforcement; The bracket side panel comprises a first side panel, a second side panel and a third side panel which are arranged in sequence in a U-shape, the first side panel, the second side panel and the third side panel are respectively arranged at adjacent edges of the bracket body, and a connecting flap for connecting the first reinforcing plate is arranged at one end of the second side panel which is away from the bracket body.

8. The fuel tank installation structure according to claim 7, characterized in that: The front bracket reinforcement comprises: A bracket reinforcement body, wherein the bracket reinforcement body has a bracket connection section and a fuel tank connection section arranged in an L shape, wherein the bracket connection section and the fuel tank connection section each include a first side reinforcement plate, a reinforcement main plate, and a second side reinforcement plate arranged in a U shape; A first side flap, the first side flap is arranged on a side of the first side reinforcing plate away from the reinforcing main plate, and the first side flap is connected to both the reinforcing vertical plate and the second reinforcing plate; A second side flap, the second side flap is arranged on a side of the second side reinforcing plate away from the reinforcing main plate, and the second side flap is connected to both the reinforcing vertical plate and the second reinforcing plate; a third side flap, the third side flap being arranged at the fuel tank connection section away from the bracket connection section, and the third side flap being connected to the first side reinforcement plate, the reinforcement main plate and the second side reinforcement plate, and the third side flap being also connected to the second reinforcement plate; Among them, the first side flap and the second side flap are both provided with a plurality of second steps, the third side flap is provided with a third step, the bracket reinforcement body is also provided with a second connecting hole and a plurality of fourth sinkers, the second connecting hole is located in the area where the reinforcement main board is located in the bracket connecting section, the fourth sinker is located in the area where the reinforcement main board is located in the bracket connecting section, and a plurality of the fourth sinkers are provided with third connecting holes.

9. The fuel tank installation structure according to any one of claims 1 to 8, characterized in that: The rear cross beam connecting member comprises: A rear cross beam, the rear cross beam comprising a first cross beam side plate, a cross beam bottom plate and a second cross beam side plate arranged in a U shape, a first cross beam flap being arranged on a side of the first cross beam side plate away from the cross beam bottom plate, the first cross beam side plate and the first cross beam flap being used to connect a fuel tank, a second cross beam flap being arranged on a side of the second cross beam side plate away from the cross beam bottom plate, a plurality of fourth steps being arranged on the first cross beam flap and the second cross beam flap, the cross beam bottom plate being arranged with a rectangular sink, and a vehicle front pointing arrow and a fourth drainage hole being arranged on the rectangular sink; Two rear beam reinforcements, both rear beam reinforcements are arranged in L shape, the two rear beam reinforcements are respectively arranged on both sides of the rectangular sink, and are respectively connected to the first cross beam side plate and the cross beam bottom plate, and rear beam reinforcement flaps are arranged at both ends of the beam reinforcement along the width direction.

10. An automobile, characterized in that: The automobile includes the fuel tank mounting structure according to claim 9.

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