Oil tank wave plate, oil tank and vehicle

By incorporating a transverse anti-surge structure and through-hole design within the fuel tank, the problem of poor anti-surge performance at low fuel levels is solved, resulting in smooth fuel flow, reduced noise, and enhanced connection stability of the fuel tank anti-surge plate.

CN224545721UActive Publication Date: 2026-07-24ANHUI NIWEI AUTO POWER SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI NIWEI AUTO POWER SYST CO LTD
Filing Date
2025-07-29
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing fuel tank baffle has a poor anti-surge effect when the fuel level is lower than the bottom wall of the baffle, which affects the smooth flow of fuel.

Method used

A transverse wave-proof structure is installed between the vertical wave-proof structure and the bottom wall of the fuel tank. The wave-proof horizontal plate has multiple through holes, and a column and connecting wall are installed on the lower end face to form a chamber to prevent fuel sloshing and allow fuel flow.

Benefits of technology

It effectively prevents fuel sloshing, reduces noise, ensures fuel flow, reduces the weight of the baffle structure, and enhances connection stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of oil tank wave prevention, disclose an oil tank wave plate, oil tank and vehicle, oil tank wave plate includes: vertical wave prevention structure, with the fixed connection of oil tank bottom wall, and vertical wave prevention structure bottom wall and oil tank bottom wall between having interval spacing, horizontal wave prevention structure, set up between vertical wave prevention structure and oil tank bottom wall, and with the bottom fixed connection of vertical wave prevention structure, the utility model provides an oil tank wave plate, through setting up horizontal wave prevention structure between vertical wave prevention structure and oil tank bottom wall, to effectively prevent the sway of fuel when the fuel liquid level is lower than vertical wave prevention structure.
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Description

Technical Field

[0001] This utility model relates to the field of fuel tank anti-surge technology, specifically to a fuel tank anti-surge plate, a fuel tank, and a vehicle. Background Technology

[0002] With the development of the automotive industry, passengers have increasingly higher demands for vehicle comfort. During acceleration, deceleration, or cornering, the fuel in the fuel tank, due to inertia, generates swells that impact the inner wall of the tank and components installed inside, producing impact noise. To reduce noise, vertical baffles are typically installed inside the fuel tank to mitigate fuel sloshing noise. For example, Chinese Patent CN219077009U discloses a plastic-coated fuel tank baffle. However, to ensure the connection strength between the baffle and the bottom wall of the tank, no through holes are provided at the bottom edge of the baffle. Furthermore, to prevent the bottom of the baffle from affecting the smooth flow of fuel at low fuel levels, a gap is maintained between the bottom wall of the baffle and the bottom wall of the tank to form a fuel passage. This results in a poor baffle baffle performance when the fuel level is below the bottom wall. Utility Model Content

[0003] In view of this, the present invention provides a fuel tank anti-surge plate, a fuel tank, and a vehicle to solve the problem of poor waterproofing effect of button structures.

[0004] In a first aspect, this utility model provides a fuel tank anti-surge baffle for installation inside a fuel tank, the fuel tank anti-surge baffle comprising:

[0005] The vertical wave-proof structure is fixedly connected to the bottom wall of the fuel tank, and there is a gap between the bottom wall of the vertical wave-proof structure and the bottom wall of the fuel tank.

[0006] A transverse wave-damping structure is installed between the vertical wave-damping structure and the bottom wall of the tank. The transverse wave-damping structure includes a wave-damping horizontal plate, the upper end of which is fixedly connected to the vertical wave-damping structure, and multiple first through holes are provided on the wave-damping horizontal plate.

[0007] In one alternative implementation, multiple columns are provided on the lower end face of the anti-surge horizontal plate.

[0008] In one optional embodiment, the transverse wave-damping structure further includes multiple connecting walls, which are fixedly connected between two adjacent columns. The multiple connecting walls and multiple columns at least enclose a cavity, and the connecting walls are in contact with the lower end face of the wave-damping horizontal plate. The dimension of the connecting wall in the height direction is smaller than the dimension of the column in the height direction.

[0009] In one alternative embodiment, the height of the column is 5mm to 7mm; the diameter of the column is 1mm to 1.5mm; and the spacing between two adjacent columns is 1mm to 2mm.

[0010] In one alternative embodiment, at least one first stiffening plate is fixedly connected between the upper end face of the wave-breaking horizontal plate and the vertical wave-breaking structure.

[0011] In one alternative embodiment, the diameter of the first through hole is 1.5 mm to 2.5 mm; the spacing between two adjacent first through holes is 1 mm to 3 mm.

[0012] In one optional embodiment, the vertical wave-breaking structure includes a wave-breaking vertical plate, which has multiple second through holes and multiple wave-breaking protrusions on its side.

[0013] In one alternative embodiment, a fixing seat is fixedly connected to the bottom of the wave-damping vertical plate, and the fixing seat is adapted to be detachably connected to the bottom wall of the oil tank.

[0014] Secondly, this utility model also provides an oil tank, including: the aforementioned oil tank anti-surge plate.

[0015] Thirdly, this utility model also provides a vehicle, including the aforementioned fuel tank.

[0016] The technical solution of this utility model has the following advantages:

[0017] 1. The fuel tank anti-surge plate provided by this utility model, by setting a transverse anti-surge structure in the space between the vertical anti-surge structure and the bottom wall of the fuel tank, effectively prevents fuel sloshing when the fuel level is lower than the vertical anti-surge structure. By opening multiple first through holes on the anti-surge plate, fuel sloshing is reduced while fuel is allowed to pass through, thereby reducing the impact of fuel on the anti-surge plate and reducing the weight of the anti-surge plate structure.

[0018] 2. The fuel tank anti-surge plate provided by this utility model has multiple columns set on the lower end face of the anti-surge plate to disperse the fuel waves when the fuel tank shakes, thereby reducing the fuel surge and helping to reduce the noise caused by fuel shaking.

[0019] 3. The fuel tank anti-surge plate provided by this utility model has connecting walls used to at least partially block the space between two adjacent columns, thereby further hindering fuel sloshing. By enclosing multiple connecting walls with multiple columns to form at least one chamber, it is easier to divide the fuel and reduce fuel surge. Furthermore, by making the dimension of the connecting walls in the height direction smaller than that of the columns, it is easier to ensure that the fuel inside and outside the chamber can communicate.

[0020] 4. The oil tank anti-surge plate provided by this utility model has an anti-surge horizontal plate that is fixedly connected to the vertical anti-surge structure through a first stiffening plate, so as to enhance the connection stability between the anti-surge horizontal plate and the vertical anti-surge structure.

[0021] 5. The oil tank anti-surge plate provided by this utility model has multiple second through holes on the anti-surge vertical plate, so as to allow fuel to pass through while reducing fuel sloshing, thereby reducing the impact of fuel on the anti-surge vertical plate and reducing the structural weight of the anti-surge vertical plate; and by setting multiple anti-surge protrusions, the structural strength of the anti-surge vertical plate is enhanced, while also hindering the sloshing of fuel.

[0022] 6. The oil tank provided by this utility model has the same effect as the oil tank anti-surge plate as the oil tank anti-surge plate, and its beneficial effects will not be repeated here.

[0023] 7. The vehicle provided by this utility model, because the vehicle includes the above-mentioned fuel tank, has the same effect as the fuel tank baffle, and its beneficial effects will not be repeated here. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a fuel tank baffle according to an embodiment of the present invention. Figure 1 ;

[0026] Figure 2 for Figure 1 A magnified view of part A in the diagram;

[0027] Figure 3 for Figure 1 The diagram shows the structure of the fuel tank baffle. Figure 2 ;

[0028] Figure 4 for Figure 1 The diagram shows the structure of the fuel tank baffle. Figure 3 ;

[0029] Figure 5 for Figure 4 A magnified view of part B in the diagram;

[0030] Figure 6 for Figure 1 The bottom view of the fuel tank baffle shown;

[0031] Figure 7 for Figure 6 A magnified view of part of C;

[0032] Figure 8 for Figure 1 The diagram shows the assembly of the oil tank baffle and the oil tank.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Vertical wave-proof structure; 11. Wave-proof vertical plate; 111. Second through hole; 12. Wave-proof protruding ridge; 2. Horizontal wave-proof structure; 21. Wave-proof horizontal plate; 211. First through hole; 22. Column; 23. Connecting wall; 24. Chamber; 3. First stiffening plate; 4. Fixing seat; 41. Groove; 5. Second stiffening plate; 6. Arc plate; 61. Waist-shaped hole. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] The following is combined Figures 1 to 8 The following describes embodiments of the present invention.

[0037] According to an embodiment of the present invention, in one aspect, a fuel tank baffle is provided for installation inside a fuel tank. The fuel tank baffle includes:

[0038] The vertical wave-proof structure 1 is fixedly connected to the bottom wall of the fuel tank, and there is a gap between the bottom wall of the vertical wave-proof structure 1 and the bottom wall of the fuel tank.

[0039] A transverse wave-damping structure 2 is disposed between the vertical wave-damping structure 1 and the bottom wall of the tank. The transverse wave-damping structure 2 includes a wave-damping horizontal plate 21. The upper end face of the wave-damping horizontal plate 21 is fixedly connected to the vertical wave-damping structure 1, and a plurality of first through holes 211 are provided on the wave-damping horizontal plate 21.

[0040] The fuel tank anti-sloshing plate provided in this embodiment effectively prevents fuel sloshing when the fuel level is lower than the vertical anti-sloshing structure 1 by setting a horizontal anti-sloshing structure 2 in the space between the vertical anti-sloshing structure 1 and the bottom wall of the fuel tank. By opening multiple first through holes 211 on the anti-sloshing horizontal plate 21, fuel sloshing is reduced while fuel is allowed to pass through, thereby reducing the impact of fuel on the anti-sloshing horizontal plate 21 and reducing the structural weight of the anti-sloshing horizontal plate 21.

[0041] Specifically, an oil passage is formed between the bottom wall of the vertical anti-surge structure 1 and the bottom wall of the fuel tank to ensure fuel flow when the fuel level is below the vertical anti-surge structure 1. The horizontal anti-surge structure 2 is located at the oil passage to effectively prevent fuel sloshing when the fuel level is below the vertical anti-surge structure 1. When the fuel level in the fuel tank is above the horizontal anti-surge structure 2, both the horizontal anti-surge structure 2 and the vertical anti-surge structure 1 work together to prevent fuel sloshing.

[0042] There is a gap between the lower end face of the anti-surge horizontal plate 21 and the bottom wall of the fuel tank to ensure the flow of fuel when the fuel level is lower than the upper end face of the anti-surge horizontal plate 21. The axial direction of the first through hole 211 is perpendicular to the upper or lower end face of the anti-surge horizontal plate 21. Preferably, the first through hole 211 is a circular hole, and multiple first through holes 211 are evenly arranged on the anti-surge horizontal plate 21.

[0043] In one embodiment, combined Figures 1 to 7 As shown, multiple columns 22 are provided on the lower end face of the anti-surge horizontal plate 21.

[0044] The fuel tank anti-surge plate provided in this embodiment has multiple columns 22 set on the lower end face of the anti-surge plate 21 to disperse the fuel waves when the fuel tank shakes, thereby reducing the fuel surge and helping to reduce the noise caused by fuel shaking.

[0045] Specifically, the length direction of the column 22 is perpendicular to the lower end face of the anti-surge horizontal plate 21. When the fuel level is lower than the lower end face of the anti-surge horizontal plate 21, the column 22 is used to disperse fuel waves. The first through hole 211 is set away from the column 22. Preferably, the column 22 is cylindrical, and multiple columns 22 are evenly arranged on the lower end face of the anti-surge horizontal plate 21.

[0046] In one embodiment, combined Figures 4 to 7 As shown, the transverse wave-breaking structure 2 also includes multiple connecting walls 23, which are fixedly connected between two adjacent columns 22. The multiple connecting walls 23 and the multiple columns 22 at least enclose a cavity 24, and the connecting walls 23 are in contact with the lower end face of the wave-breaking horizontal plate 21. The dimension of the connecting wall 23 in the height direction is smaller than the dimension of the column 22 in the height direction.

[0047] The fuel tank baffle provided in this embodiment has a connecting wall 23 used to at least partially block the space between two adjacent columns, thereby further hindering fuel sloshing. By enclosing multiple connecting walls 23 and multiple columns 22 to form at least one chamber 24, it is easier to divide the fuel and reduce fuel sloshing. Furthermore, by making the dimension of the connecting wall 23 in the height direction smaller than that of the column 22, it is easier to ensure that the fuel inside and outside the chamber 24 can communicate.

[0048] Specifically, a connecting wall 23 is provided between two adjacent columns 22 to impede the sloshing of fuel when the fuel level is lower than the lower end of the anti-sloshing cross plate 21, thereby further reducing the sloshing of fuel when the fuel tank shakes.

[0049] There is a gap between the plane where the lower end face of the connecting wall 23 is located and the plane where the lower end face of the column 22 is located, so as to ensure that there is a gap between the connecting wall 23 and the bottom wall of the fuel tank, thereby ensuring that fuel can flow between the two sides of the connecting wall 23.

[0050] In one embodiment, the height of the column 22 is 5mm to 7mm; the diameter of the column 22 is 1mm to 1.5mm; and the spacing between two adjacent columns 22 is 1mm to 2mm.

[0051] For example, in some embodiments, the height of the column 22 can be 5mm, 6mm, or 7mm, or it can be a range formed by any two of the above values.

[0052] For example, in some embodiments, the diameter of the column 22 can be 1 mm, 1.2 mm, or 1.5 mm, or it can be a range formed by any two of the above values.

[0053] For example, in some embodiments, the spacing between two adjacent columns 22 can be 1mm, 1.5mm, or 2mm, or it can be any range formed by any two of the above values.

[0054] In one embodiment, combined Figure 1 and Figure 2 As shown, at least one first stiffening plate 3 is fixedly connected between the upper end face of the wave-breaking horizontal plate 21 and the vertical wave-breaking structure 1.

[0055] The oil tank anti-surge plate provided in this embodiment has an anti-surge horizontal plate 21 that is fixedly connected to the vertical anti-surge structure 1 through a first stiffening plate 3, so as to enhance the connection stability between the anti-surge horizontal plate 21 and the vertical anti-surge structure 1.

[0056] In one embodiment, the diameter of the first through hole 211 is 1.5 mm to 2.5 mm; the spacing between two adjacent first through holes 211 is 1 mm to 3 mm.

[0057] For example, in some embodiments, the diameter of the first through hole 211 can be 1.5mm, 2mm, or 2.5mm, or it can be a range formed by any two of the above values.

[0058] For example, in some embodiments, the spacing between two adjacent first through holes 211 can be 1 mm, 2 mm, or 3 mm, or it can be a range formed by any two of the above values.

[0059] In one embodiment, combined Figures 1 to 4 As shown, the vertical wave-breaking structure 1 includes a wave-breaking vertical plate 11, which has multiple second through holes 111 and multiple wave-breaking protrusions 12 on its side.

[0060] The fuel tank baffle provided in this embodiment has multiple second through holes 111 on the baffle vertical plate 11, so as to allow fuel to pass through while reducing fuel sloshing, thereby reducing the impact of fuel on the baffle vertical plate 11 and reducing the structural weight of the baffle vertical plate 11; and by setting multiple baffle protrusions 12, the structural strength of the baffle vertical plate 11 is enhanced, and the fuel sloshing is also hindered.

[0061] Specifically, the first stiffening plate 3 is fixedly connected to both the horizontal wave-breaking plate 21 and the vertical wave-breaking plate 11. The inner diameter of the second through hole 111 is larger than the inner diameter of the first through hole 211. Preferably, the second through hole 111 is a circular hole, and multiple second through holes 111 are evenly distributed on the vertical wave-breaking plate 11. Furthermore, a local area on the side of the vertical wave-breaking plate 11 is recessed to form a strip groove, and the number of strip grooves is at least one, avoiding the second through holes 111.

[0062] The diameter of the second through hole 111 is 4mm to 6mm; the spacing between two adjacent second through holes 111 is 30mm to 35mm.

[0063] For example, in some embodiments, the diameter of the second through hole 111 can be 4mm, 5mm, or 6mm, or it can be a range formed by any two of the above values.

[0064] For example, in some embodiments, the spacing between two adjacent second through holes 111 can be 30mm, 32mm, or 35mm, or it can be a range formed by any two of the above values.

[0065] There is at least one wave-breaking vertical plate 11. Alternatively, multiple wave-breaking vertical plates 11 may be provided, with adjacent plates 11 connected by an arc-shaped plate 6. Along the axis parallel to the second through hole 111, the arc-shaped plate 6 has multiple through-holes 61.

[0066] Furthermore, the structure of the fuel tank includes various forms, combined with... Figure 8 As shown, taking a saddle-shaped or arched oil tank as an example, the bottom wall structure of the corresponding area's wave-damping vertical plate 11 is semi-arched to adapt to the shape of the oil tank's bottom wall.

[0067] In one embodiment, combined Figures 1 to 7As shown, the bottom of the wave-damping vertical plate 11 is fixedly connected to a fixing seat 4, which is suitable for detachable connection with the bottom wall of the oil tank.

[0068] Specifically, the wave-breaking vertical plate 11 is detachably and fixedly connected to the oil tank via a fixing seat 4. Multiple grooves 41 are provided on the side of the fixing seat 4 away from the wave-breaking vertical plate 11. A second stiffening plate 5 is also fixedly connected between the fixing seat 4 and the wave-breaking vertical plate 11 to enhance the connection stability between them.

[0069] According to an embodiment of the present invention, another aspect provides a fuel tank, including the aforementioned fuel tank baffle. By providing the aforementioned fuel tank baffle in the fuel tank, fuel sloshing can be suppressed when the fuel level is higher than the bottom wall of the baffle 11, and fuel sloshing in the fuel tank can be effectively suppressed when the fuel level is lower than the baffle 11, thereby reducing the noise generated by fuel sloshing and improving the passenger's riding experience.

[0070] According to an embodiment of the present invention, another aspect provides a vehicle including the aforementioned fuel tank. By installing a fuel tank with the aforementioned fuel tank baffle on the vehicle, it is beneficial to reduce fuel sloshing in the fuel tank during vehicle operation, thereby reducing the noise generated by fuel sloshing and improving the passenger riding experience.

[0071] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope defined by the present invention.

Claims

1. A baffle plate for a fuel tank, characterized in that, For installation inside the fuel tank, the fuel tank baffle includes: A vertical wave-proof structure (1) is fixedly connected to the bottom wall of the oil tank, and there is a gap between the bottom wall of the vertical wave-proof structure (1) and the bottom wall of the oil tank; A transverse wave-blocking structure (2) is disposed between the vertical wave-blocking structure (1) and the bottom wall of the oil tank. The transverse wave-blocking structure (2) includes a wave-blocking horizontal plate (21). The upper end face of the wave-blocking horizontal plate (21) is fixedly connected to the vertical wave-blocking structure (1), and a plurality of first through holes (211) are provided on the wave-blocking horizontal plate (21).

2. The fuel tank baffle according to claim 1, characterized in that, The lower end face of the wave-breaking horizontal plate (21) is provided with multiple columns (22).

3. The fuel tank baffle according to claim 2, characterized in that, The transverse wave-breaking structure (2) also includes multiple connecting walls (23), which are fixedly connected between two adjacent columns (22). The multiple connecting walls (23) and the multiple columns (22) at least enclose a cavity (24), and the connecting walls (23) are in contact with the lower end face of the wave-breaking horizontal plate (21). The dimension of the connecting wall (23) in the height direction is smaller than the dimension of the column (22) in the height direction.

4. The oil tank baffle according to claim 2, characterized in that, The height of the column (22) is 5mm to 7mm; the diameter of the column (22) is 1mm to 1.5mm; and the spacing between two adjacent columns (22) is 1mm to 2mm.

5. The oil tank baffle according to claim 2, characterized in that, At least one first stiffening plate (3) is fixedly connected between the upper end face of the wave-breaking horizontal plate (21) and the vertical wave-breaking structure (1).

6. The fuel tank baffle according to claim 1, characterized in that, The diameter of the first through hole (211) is 1.5 mm to 2.5 mm; the spacing between two adjacent first through holes (211) is 1 mm to 3 mm.

7. The fuel tank baffle according to any one of claims 1 to 6, characterized in that, The vertical wave-proof structure (1) includes a wave-proof vertical plate (11), which has multiple second through holes (111) and multiple wave-proof protrusions (12) on its side.

8. The fuel tank baffle according to claim 7, characterized in that, The bottom of the wave-damping vertical plate (11) is fixedly connected to a fixing seat (4), which is suitable for detachable connection with the bottom wall of the oil tank.

9. A fuel tank, characterized in that, include: The oil tank baffle according to any one of claims 1 to 8.

10. A vehicle, characterized in that, include: The fuel tank as described in claim 9.

Citation Information

Patent Citations

  • CN219077009U