Automobile fuel tank and automobile

Abstract

The invention discloses an automobile fuel tank and an automobile, and relates to the technical field of automobiles, the automobile fuel tank comprises a fuel tank upper shell, a fuel tank lower shell and a fuel tank lower shell, the fuel tank upper shell reuses at least part of the structure of an automobile body floor assembly; the oil tank lower shell is connected with the oil tank upper shell; wherein an oil storage tank of the vehicle oil tank is formed by the oil tank lower shell, and the oil storage tank is sealed by the oil tank upper shell through the connection of the oil tank upper shell and the oil tank lower shell. According to the scheme, the oil tank upper shell reuses the vehicle body floor assembly, on one hand, the process steps for manufacturing the oil tank upper shell in the oil tank production process are reduced, the production cost and the production difficulty are reduced, on the other hand, a gap between an existing vehicle oil tank and a vehicle body floor is eliminated, and the volume of the vehicle oil tank is increased.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a vehicle fuel tank and a vehicle. Background Art

[0002] Automobile fuel tanks are generally made of steel plate stamping and welding or resin blow molding. After being made into individual parts, they are installed on the lower part of the chassis through fixed steel belts, and a certain gap is left between them and the bottom plate of the vehicle body. The body of a passenger car generally adopts a load-bearing structure, and the bottom plate of the vehicle body is generally designed with crossbeams, longitudinal beams and other structures. The outer shell of the fuel tank is designed to be an uneven special-shaped structure to avoid the bottom plate of the vehicle body, which makes the mold manufacturing process of the fuel tank complicated and the volume limited. Summary of the invention

[0003] The purpose of the present application is to provide a vehicle fuel tank and a vehicle, so as to solve the problem of complex mold manufacturing process and limited volume of the fuel tank in the related art.

[0004] In a first aspect, in order to achieve the above-mentioned purpose, an embodiment of the present application provides a vehicle fuel tank, comprising:

[0005] A fuel tank upper shell, wherein the fuel tank upper shell reuses at least a part of the structure of the vehicle body floor assembly;

[0006] A fuel tank lower shell, the fuel tank lower shell is connected to the fuel tank upper shell;

[0007] The lower shell of the oil tank forms an oil storage tank of the vehicle oil tank, and the upper shell of the oil tank closes the oil storage tank through the connection between the upper shell of the oil tank and the lower shell of the oil tank.

[0008] Wherein, the lower shell of the oil tank includes a bottom plate and a side plate connected to the edge of the bottom plate; wherein, the bottom plate and the side plates are arranged to form the oil storage tank, and the top of the side plate has a mounting plate extending to the outside of the oil storage tank, and the lower shell of the oil tank is connected to the upper shell of the oil tank through the mounting plate.

[0009] Among them, a plurality of first mounting holes are opened on the mounting plate, and a second mounting hole is opened on the upper shell of the fuel tank at a position corresponding to the first mounting hole, and bolts connect the upper shell of the fuel tank and the lower shell of the fuel tank through the first mounting hole and the second mounting hole.

[0010] Wherein, a sealing member or a sealing glue is further arranged between the oil tank upper shell and the mounting plate.

[0011] Wherein, the bottom plate of the lower shell of the fuel tank is provided with a fuel pump mounting seat, and the fuel pump is installed in the oil storage tank through the fuel pump mounting seat.

[0012] Wherein, the side plate of the lower shell of the oil tank is also provided with an oil inlet, an oil outlet and a third mounting hole;

[0013] The oil outlet is connected to the fuel pump through a pipeline, and the third mounting hole is used for passing a power harness of the fuel pump.

[0014] Wherein, a fourth mounting hole is opened on the bottom plate, the fuel pump mounting seat is mounted on the bottom plate through the fourth mounting hole, and the fuel pump mounting seat is clamped with the bottom plate.

[0015] Wherein, the fuel tank upper shell is composed of the left longitudinal beam, the right longitudinal beam, the front cross beam, the rear cross beam of the vehicle body floor assembly, and the floor panel surrounded by the left longitudinal beam, the right longitudinal beam, the front cross beam and the rear cross beam;

[0016] Wherein, the oil tank lower shell is connected to the left longitudinal beam, the right longitudinal beam, the front cross beam and the rear cross beam.

[0017] The vehicle body floor assembly is an integrally die-cast component.

[0018] In a second aspect, in order to achieve the above-mentioned purpose, an embodiment of the present application further provides a car, comprising a vehicle fuel tank as described in the first aspect.

[0019] The above technical solution of the present application has at least the following beneficial effects:

[0020] The vehicle fuel tank of the embodiment of the present application includes a fuel tank upper shell, the fuel tank upper shell reuses at least part of the structure of the vehicle body floor assembly; and a fuel tank lower shell, the fuel tank lower shell is connected to the fuel tank upper shell; wherein the fuel tank lower shell forms the fuel storage tank of the vehicle fuel tank, and the fuel tank upper shell closes the fuel storage tank through the connection between the fuel tank upper shell and the fuel tank lower shell. Here, the fuel tank upper shell reuses the vehicle body floor assembly, firstly, it reduces the process steps of making the fuel tank upper shell during the fuel tank production process, reduces the production cost and production difficulty, and secondly, it eliminates the gap between the existing vehicle fuel tank and the vehicle body floor, and increases the volume of the vehicle fuel tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a vehicle fuel tank according to an embodiment of the present application;

[0022] Figure 2 This is a schematic structural diagram of the upper shell of the fuel tank according to an embodiment of the present application;

[0023] Figure 3 This is a schematic structural diagram of the lower shell of the oil tank according to an embodiment of the present application.

[0024] Description of reference numerals:

[0025] 100-fuel tank upper shell, 101-left longitudinal beam, 102-right longitudinal beam, 103-front cross beam, 104-rear cross beam, 105-floor panel, 200-fuel tank lower shell, 201-bottom plate, 202-side plate, 203-mounting plate, 204-first mounting hole, 205-fuel inlet, 206-fuel outlet, 207-third mounting hole, 301-fuel pump mounting seat, 302-fuel pump. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here. In addition, the "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0028] The following is a detailed description of the vehicle fuel tank and the automobile provided in the embodiments of the present application through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0029] The embodiment of the present application provides a vehicle fuel tank, such as Figure 1 As shown, the vehicle fuel tank comprises:

[0030] The fuel tank upper shell 100 reuses at least a part of the structure of the vehicle body floor assembly;

[0031] A fuel tank lower shell 200, wherein the fuel tank lower shell 200 is connected to the fuel tank upper shell 100;

[0032] The oil tank lower shell 200 forms an oil storage tank of the vehicle oil tank, and the oil tank upper shell 100 is connected to the oil tank lower shell 200 so that the oil tank upper shell 100 closes the oil storage tank.

[0033] The vehicle fuel tank of the embodiment of the present application includes a fuel tank upper shell 100 and a fuel tank lower shell 200 connected to the fuel tank upper shell 100, wherein the fuel tank upper shell 100 reuses at least part of the structure of the vehicle body floor assembly; wherein the fuel tank lower shell 200 forms the oil storage tank of the vehicle fuel tank, and the fuel tank upper shell 100 closes the oil storage tank by connecting the fuel tank upper shell 100 with the fuel tank lower shell 200. In this way, there is no need to produce the fuel tank upper shell separately, which reduces the process steps of making the fuel tank upper shell in the fuel tank production process, reduces the production cost and production difficulty, and secondly, by reusing at least part of the structure of the vehicle body floor assembly as the fuel tank upper shell 100, the gap between the existing vehicle fuel tank and the vehicle body floor is eliminated, and the volume of the vehicle fuel tank is increased.

[0034] As an optional implementation, Figure 1 and Figure 3 As shown, the oil tank lower shell 200 includes a bottom plate 201 and a side plate 202 connected to the edge of the bottom plate 201; wherein the bottom plate 201 and the side plate 202 are arranged to form the oil storage tank, and the top of the side plate 202 has a mounting plate 203 extending to the outside of the oil storage tank, and the oil tank lower shell 200 is connected to the oil tank upper shell 100 through the mounting plate 203.

[0035] Here, it should be noted that the shape of the bottom plate 201 of the fuel tank lower shell 200 is adapted to the shape of the fuel tank upper shell 100, that is, the bottom plate 201 is designed in accordance with the structure of the vehicle body floor assembly reused by the fuel tank upper shell 100, so that the volume of the vehicle fuel tank can be further increased. Figure 3 As shown, the number of the side panels 202 included in the oil tank lower shell 200 is the same as the number of the edges of the bottom plate 201, that is, each edge of the bottom plate 201 is connected to a side panel 202 perpendicular to the bottom plate 201, and each side panel 202 is located on the same side of the bottom plate 201, so that the bottom plate 201 and the plurality of side panels 202 can be arranged to form the oil storage tank.

[0036] As a specific implementation method, Figure 3 As shown, a plurality of first mounting holes 204 are provided on the mounting plate 203, and a second mounting hole is provided on the oil tank upper shell 100 at a position corresponding to the first mounting hole 204, and bolts connect the oil tank upper shell 100 and the oil tank lower shell 200 through the first mounting hole 204 and the second mounting hole.

[0037] In the above specific implementation, the tank upper shell 100 and the tank lower shell 200 are connected by bolts, so that when a component in the vehicle fuel tank is abnormal, the tank upper shell 100 and the tank lower shell 200 can be quickly separated, thereby improving the maintenance efficiency of components.

[0038] On the basis of the above specific implementation, as a more specific implementation, a seal or sealant is further provided between the oil tank upper shell 100 and the mounting plate 203 .

[0039] That is to say, a seal, such as a sealing ring or a sealing gasket, is placed between the assembly surface of the upper shell 100 of the fuel tank and the assembly surface of the lower shell 200 of the fuel tank (the surface of the mounting plate 203 facing the upper shell 100 of the fuel tank), or a sealant is applied in the gap between the two assembly surfaces. In this way, the vehicle fuel tank is sealed to avoid leakage of (liquid or gaseous) fuel.

[0040] As an optional implementation, Figure 1 and Figure 3 As shown, the bottom plate 201 of the fuel tank lower shell 200 is provided with a fuel pump mounting seat 301, and the fuel pump 302 is installed in the oil storage tank through the fuel pump mounting seat 301.

[0041] As an example, the fuel pump mounting seat 301 is disposed at the center of the bottom plate 201 .

[0042] Here, it should be noted that, since in the vehicle fuel tank of the embodiment of the present application, the fuel tank upper shell 100 reuses at least part of the structure of the vehicle body floor assembly, the fuel pump 302 cannot be embedded in the fuel tank shell, but can only be installed inside the vehicle fuel tank. Figure 1 and Figure 3 As shown, the fuel pump mounting base 301 is specifically installed on the inner surface of the bottom plate 201, that is, the fuel pump mounting base 301 is installed in the oil storage tank, so that the fuel pump 302 can also be located in the oil storage tank.

[0043] On the basis of the above optional implementation, further, as an optional implementation, as Figure 3As shown, an oil inlet 205, an oil outlet 206 and a third mounting hole 207 are also provided on the side panel of the lower shell 200 of the fuel tank; wherein the oil outlet 206 is connected to the fuel pump 302 through a pipeline, and the oil outlet 206 is connected to the engine through a pipeline, so that the fuel sucked out by the fuel pump 302 can be delivered to the engine to achieve normal driving of the vehicle; wherein the third mounting hole 207 is used for the power harness of the fuel pump 302 to pass through, so as to achieve the connection between the power harness and the low-voltage battery in the car, and the low-voltage battery provides the fuel pump 302 with a working voltage to achieve normal operation of the fuel pump 302, wherein the vehicle fuel tank also includes a fuel tank cap that cooperates with the oil inlet 205.

[0044] As a specific example, Figure 3 As shown, the oil inlet 205 and the oil outlet 206 are respectively arranged on the side panels on the two opposite sides of the bottom plate 201, and the oil outlet 206 and the third mounting hole are opened at a position close to the fuel pump 302, so that the length of the pipeline between the oil outlet 206 and the fuel pump 302 and the length of the power harness of the fuel pump 302 can be shortened. Optionally, the oil inlet 205 is located on the side panel near the corner position of the bottom plate 201, so that it is convenient to open a fuel tank refueling port connected to the oil inlet 205 on the vehicle body.

[0045] As an optional implementation, a fourth mounting hole is opened on the base plate 201 , the fuel pump mounting seat 301 is mounted on the base plate 201 through the fourth mounting hole, and the fuel pump mounting seat 301 is snap-connected with the base plate 201 .

[0046] Based on the above optional implementation, the installation process of the fuel pump 302 is as follows: first, the fuel pump 302 is installed on the fuel pump mounting seat 301, and then the fuel pump 302 is inserted into the oil storage tank through the fourth mounting hole, and at the same time, the fuel pump mounting seat 301 is engaged with the bottom plate 201. In this way, when the fuel pump 302 needs to be repaired, the fuel pump 302 can be directly removed through the fourth mounting hole without disassembling the fuel tank upper shell 100 and the fuel tank lower shell 200, thereby improving the maintenance efficiency of the fuel pump 302.

[0047] On the basis of the above optional implementation, the fuel tank upper shell 100 and the fuel tank lower shell 200 can be fixedly connected by welding, and sealant can be applied at the weld position. Of course, even if it is not based on the above optional implementation, that is: the fourth mounting hole is not provided on the bottom plate 201, and the fuel pump 302 and the fuel pump mounting seat 301 are both located in the oil storage tank, the fuel tank upper shell 100 and the fuel tank lower shell 200 can also be fixedly connected by welding. In this case, when repairing the fuel pump 302, it is necessary to first separate the fuel tank upper shell 100 and the fuel tank lower shell 200.

[0048] As an optional implementation, Figure 1 and Figure 2 As shown, the fuel tank upper shell 100 is composed of the left longitudinal beam 101, the right longitudinal beam 102, the front cross beam 103, the rear cross beam 104 of the vehicle body floor assembly, and the floor panel 105 surrounded by the left longitudinal beam 101, the right longitudinal beam 102, the front cross beam 103 and the rear cross beam 104; wherein the fuel tank lower shell 200 is connected to the left longitudinal beam 101, the right longitudinal beam 102, the front cross beam 103 and the rear cross beam 104.

[0049] That is to say, the lower surfaces (surfaces facing the fuel tank lower shell 200) of the left longitudinal beam 101, the right longitudinal beam 102, the front cross beam 103 and the rear cross beam 104 are the assembly surfaces of the fuel tank upper shell 100. Therefore, second mounting holes are opened at positions corresponding to the first mounting holes 204 on the left longitudinal beam 101, the right longitudinal beam 102, the front cross beam 103 and the rear cross beam 104, and the fuel tank upper shell 100 is threadedly connected to the fuel tank lower shell 200 through bolts through the first mounting holes 204 and the second bolt mounting holes.

[0050] Compared with the existing fuel tank in which the upper shell of the fuel tank is set as a special-shaped structure in order to avoid the left longitudinal beam 101, the right longitudinal beam 102, the front cross beam 103 and the rear cross beam 104, in the above optional implementation method, the lower surfaces of the left longitudinal beam 101, the right longitudinal beam 102, the front cross beam 103 and the rear cross beam 104 are set as the assembly surface of the upper shell 100 of the fuel tank, which can further expand the volume of the vehicle fuel tank.

[0051] Here, it should be noted that the left longitudinal beam 101, the right longitudinal beam 102, the front cross beam 103 and the rear cross beam 104 can be formed by splicing multiple sheet metals. At this time, the joints of the various sheet metals need to be further sealed, such as applying sealant at the joints to ensure the sealing of the vehicle fuel tank.

[0052] As an optional implementation, the vehicle body floor assembly is an integral die-cast component, which can reduce the splicing process of different components, improve assembly efficiency, and avoid the problem of poor sealing.

[0053] An embodiment of the present application also provides a car, comprising the vehicle fuel tank as described above.

[0054] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0055] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A vehicle fuel tank, characterized in that: include: A fuel tank upper shell (100), wherein the fuel tank upper shell (100) reuses at least a part of the structure of the vehicle body floor assembly; A fuel tank lower shell (200), the fuel tank lower shell (200) being connected to the fuel tank upper shell (100); The oil tank lower shell (200) forms an oil storage tank of the vehicle oil tank, and the oil tank upper shell (100) closes the oil storage tank through the connection between the oil tank upper shell (100) and the oil tank lower shell (200).

2. The vehicle fuel tank according to claim 1, characterized in that: The oil tank lower shell (200) comprises a bottom plate (201) and a side plate (202) connected to the edge of the bottom plate (201); wherein the bottom plate (201) and the side plate (202) are arranged to surround the oil storage tank, the top of the side plate (202) has a mounting plate (203) extending to the outside of the oil storage tank, and the oil tank lower shell (200) is connected to the oil tank upper shell (100) via the mounting plate (203).

3. The vehicle fuel tank according to claim 2, characterized in that: A plurality of first mounting holes (204) are provided on the mounting plate (203), and second mounting holes are provided on the oil tank upper shell (100) at positions corresponding to the first mounting holes (204), and bolts are connected to the oil tank upper shell (100) and the oil tank lower shell (200) via the first mounting holes (204) and the second mounting holes.

4. The vehicle fuel tank according to claim 3, characterized in that: A sealing member or sealing glue is also provided between the oil tank upper shell (100) and the mounting plate (203).

5. The vehicle fuel tank according to claim 2, characterized in that: The bottom plate (201) of the fuel tank lower shell (200) is provided with a fuel pump mounting seat (301), and the fuel pump (302) is installed in the oil storage tank through the fuel pump mounting seat (301).

6. The vehicle fuel tank according to claim 5, characterized in that: The side plate of the oil tank lower shell (200) is also provided with an oil inlet (205), an oil outlet (206) and a third mounting hole (207); The oil outlet (206) is connected to the fuel pump (302) via a pipeline, and the third mounting hole (207) is used for allowing a power harness of the fuel pump (302) to pass through.

7. The vehicle fuel tank according to claim 5, characterized in that: The bottom plate (201) is provided with a fourth mounting hole, the fuel pump mounting seat (301) is mounted on the bottom plate (201) through the fourth mounting hole, and the fuel pump mounting seat (301) is snap-connected with the bottom plate (201).

8. The vehicle fuel tank according to claim 1, characterized in that: The fuel tank upper shell (100) is composed of a left longitudinal beam (101), a right longitudinal beam (102), a front cross beam (103), a rear cross beam (104) of the vehicle body floor assembly, and a floor panel (105) surrounded by the left longitudinal beam (101), the right longitudinal beam (102), the front cross beam (103) and the rear cross beam (104); Wherein, the oil tank lower shell (200) is connected to the left longitudinal beam (101), the right longitudinal beam (102), the front cross beam (103) and the rear cross beam (104).

9. The vehicle fuel tank according to claim 1 or 8, characterized in that: The vehicle body floor assembly is an integrally die-cast component.

10. An automobile, characterized in that: The invention comprises a vehicle fuel tank as claimed in any one of claims 1 to 9.

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