Wave-proof plate structure and fuel tank with same

Abstract

The embodiment of the utility model provides a washboard structure and a fuel tank with the same. The wave-proof plate structure comprises at least one wave-proof plate assembly, the wave-proof plate assembly is arranged in the fuel tank, the wave-proof plate assembly comprises at least one transverse panel and at least one longitudinal panel, the transverse panel is in clearance fit with the inner wall of the fuel tank, and an included angle is formed between the longitudinal panel and the transverse panel; an avoiding structure used for installing an oil pump is formed on at least one side edge of the longitudinal panel and at least one side edge of the transverse panel. According to the wave-proof plate structure, through ingenious design and layout of the transverse panel and the longitudinal panel and application of the avoiding structure, effective control over oil shaking is achieved, meanwhile, the installation process of a fuel pump is optimized, and the problem that in the prior art, a wave-proof plate structure is poor in universality is solved.

Description

Technical Field

[0001] This application relates to the field of fuel tank technology, and more particularly to a wave deflector structure and a fuel tank having the same. Background Technology

[0002] In automotive fuel systems, the fuel tank, as a crucial component for storing fuel, has an internal baffle design that is essential for suppressing fuel sloshing noise. Fuel sloshing noise, especially during high-speed driving, cornering, or bumpy road conditions, is generated by the fluctuation of the fuel surface within the fuel tank. This not only affects the vehicle's NVH (noise, vibration, and harshness) performance but can also cause passenger discomfort and even negatively impact brand image.

[0003] Existing wave deflector designs are often customized for specific fuel tank shapes and sizes, lacking flexibility and versatility, making it difficult to meet the diverse needs of different vehicle models and fuel tanks, resulting in high mold development costs and product development cycles.

[0004] No effective solution has yet been proposed to address the above issues. Utility Model Content

[0005] This application provides a wave deflector structure and a fuel tank having the same, aiming to improve the problem of poor versatility of existing wave deflector structures.

[0006] To achieve the above objectives, according to one aspect of the present invention, a baffle structure is provided, comprising: a baffle assembly disposed inside a fuel tank, the baffle assembly having at least one component, the baffle assembly including a horizontal panel and a vertical panel, the horizontal panel and the vertical panel being at least one component, the horizontal panel being clearance-fitted with the inner wall of the fuel tank, and the vertical panel being disposed at an angle to the horizontal panel; wherein, at least one side of the vertical panel and the horizontal panel forms a clearance structure for mounting an oil pump.

[0007] The above-described optional embodiments of this application achieve the following beneficial effects: By applying the technical solution of this utility model, at least one anti-surge baffle assembly composed of horizontal and vertical panels is installed inside the fuel tank. Utilizing the three-dimensional spatial characteristics of the fuel tank, the fuel is divided into multiple independent or semi-independent areas, thus dispersing the energy of fuel sloshing and reducing noise and vibration caused by fuel fluctuations. The clearance structure designed at at least one side of the horizontal and vertical panels ensures smooth passage of the fuel pump without requiring additional cutting or adjustment of the anti-surge baffle, simplifying the fuel pump installation process. Simultaneously, the clearance structure design considers the clearance fit with the inner wall of the fuel tank, ensuring the installation positioning accuracy and stability of the anti-surge baffle assembly, and solving the problem of poor versatility of existing anti-surge baffle structures.

[0008] Furthermore, the wave deflector assembly includes: a connecting column, at least one connecting column is provided, the axis of the connecting column is perpendicular to the horizontal panel, the bottom of the connecting column is connected to the bottom of the fuel tank, and the connecting column is connected to at least one of the horizontal panel and the vertical panel.

[0009] The above-described optional embodiments of this application achieve the following beneficial effects: the axis of the connecting column is perpendicular to the horizontal panel. This vertical positioning method not only ensures the upright stability of the baffle assembly inside the fuel tank, but also provides a stable support point for the baffle assembly through the tight connection between the bottom of the connecting column and the bottom of the fuel tank, greatly reducing the risk of baffle displacement or deformation caused by vehicle vibration or oil impact. The connecting column is connected to at least one of the horizontal and vertical panels. Through this multi-point fixing design, the baffle assembly can form a stable three-dimensional frame structure inside the fuel tank. Even with complex fuel tank geometry, the connecting column ensures that each part of the baffle assembly maintains its predetermined position and the correct angle between them, thereby effectively controlling the sloshing of oil in different directions.

[0010] Furthermore, multiple horizontal panels are provided, and the vertical panels include a first vertical panel and a second vertical panel. Multiple horizontal panels are connected to the first vertical panel, and the first vertical panel is connected to the connecting column. Multiple horizontal panels are arranged at intervals along the height direction of the fuel tank. The second vertical panel is arranged between adjacent horizontal panels, and a buffer space is formed between adjacent second vertical panels and the first vertical panel and the horizontal panels.

[0011] The above-described optional embodiments of this application achieve the following beneficial effects: Multiple horizontal panels are spaced apart along the height of the fuel tank, a design that effectively controls the fluctuations of the fuel at different heights. Since the sloshing of the fuel typically varies with its height, the lower-level horizontal panels focus more on controlling the basic horizontal movement of the fuel, while the higher-level horizontal panels focus on controlling the minute fluctuations on the fuel surface. This multi-layered control strategy significantly enhances the anti-sloshing effect. The first vertical panel is connected to the multiple horizontal panels and fixed to the bottom of the fuel tank via connecting columns, forming a vertically stable frame structure. The first vertical panel not only enhances the rigidity of the overall structure but also guides the flow of the fuel in the vertical direction, further slowing down the sloshing speed and reducing the impact force. The design using multiple horizontal and vertical panels achieves the maximum anti-sloshing effect with minimal material usage. The second vertical panel is positioned between adjacent horizontal panels, forming a buffer space together with the first vertical and horizontal panels. These buffer spaces divide the oil into multiple small areas, allowing for temporary storage and regulation of the oil. When oil levels fluctuate, the flow rate and pressure changes within the buffer spaces are slower, effectively absorbing the energy of the fluctuations and further reducing the impact of the oil on the tank walls. The spacing and connection method between the horizontal and vertical panels are precisely calculated to ensure sufficient strength to resist oil impact while achieving a lightweight structure, which helps reduce the overall weight of the vehicle and improve fuel efficiency.

[0012] Furthermore, multiple oil holes are provided on the longitudinal panel, the first longitudinal panel, the second longitudinal panel, and the transverse panel.

[0013] The above-described optional embodiments of this application achieve the following beneficial effects: Multiple oil holes are provided on the longitudinal panel, the first longitudinal panel, the second longitudinal panel, and the transverse panel, creating an oil flow network composed of countless small holes. Each oil hole can be considered a small control point for oil flow; when oil attempts to flow between the panels, it must pass through these small holes. Since the hole diameter is much smaller than the average path width of the oil during free flow, the flow velocity of the oil is significantly reduced when passing through the holes, while vortices and turbulence are generated. These physical effects help to further disperse the kinetic energy of the oil, reduce the impact force of the oil, and thus significantly reduce noise and vibration. The arrangement of the oil holes also allows the baffle to achieve a lightweight design while maintaining sufficient strength. The uniform distribution of the oil holes and the modular design of the panels enable the baffle structure of this invention to flexibly adapt to fuel tanks of different sizes and shapes. Whether the fuel tank is of a regular or irregular shape, the optimal configuration of the baffle can be achieved by slightly adjusting the size, position, and number of holes, improving its versatility and interchangeability in vehicle design. The oil well reduces material usage and lowers the weight of the baffle, which is crucial for reducing the overall weight of the vehicle and improving fuel efficiency.

[0014] Furthermore, multiple parallel reinforcing ribs are provided on both sides of the first longitudinal panel.

[0015] The above-described optional embodiments of this application achieve the following beneficial effects: The second reinforcing rib effectively improves the lateral strength and overall rigidity of the first longitudinal panel. During vehicle operation, the sloshing of the oil not only generates vertical and horizontal forces but may also exert lateral forces on the longitudinal panel. The second reinforcing rib effectively resists these lateral forces by increasing the lateral support of the material, ensuring that the longitudinal panel maintains its shape even under extreme conditions, avoiding structural deformation, and enhancing the anti-sloshing effect. The second reinforcing rib not only enhances the structural strength but also provides a certain degree of buffer zone when the oil sloshes. When the oil flows through the small space formed by these reinforcing ribs and the longitudinal panel, its flow rate and pressure changes are further slowed down, which helps to reduce the impact of the oil on the tank wall and reduce noise generation.

[0016] Furthermore, a horizontal panel is provided, which is connected to the connecting column. A clearance recess is provided on one side of the horizontal panel, and a vertical panel extends along the edge of the clearance recess and is connected to the edge of the clearance recess.

[0017] The above-described optional embodiments of this application achieve the following beneficial effects: The recessed area on the horizontal panel provides a precise installation space for the fuel pump, avoiding direct contact between the baffle and the fuel pump, and simplifying the fuel pump installation process. This design ensures that the fuel pump is not subjected to additional obstruction or wear during installation, and also facilitates subsequent maintenance and replacement of the fuel pump. The recessed area design not only saves internal space in the fuel tank, but also adapts to the different positions of the fuel pump in different vehicle models, improving the versatility of the baffle structure. This design allows the baffle to efficiently utilize internal space while maintaining the original layout of the fuel tank, achieving the dual goals of structural lightweighting and functional enhancement.

[0018] Furthermore, at least one surface of the horizontal panel is provided with a first reinforcing rib, and there are multiple first reinforcing ribs extending in a vertical direction.

[0019] The above-described optional embodiments of this application achieve the following beneficial effects: the arrangement of multiple first reinforcing ribs extending vertically is equivalent to adding several vertical support beams to the horizontal panel. This not only increases the panel's bending resistance but also, during oil impact, the reinforcing ribs can disperse and absorb some of the impact force, preventing excessive deformation or breakage of the horizontal panel, thereby significantly improving the structural strength and durability of the baffle assembly. The first reinforcing ribs and the panel surface form numerous vertical "microchannels." When oil attempts to flow from one side to the other, these microchannels significantly increase the oil's flow resistance, forcing the oil to flow around or through oil holes, thereby further controlling and slowing down the oil's flow speed, achieving a more precise oil sloshing control effect.

[0020] Furthermore, there are multiple connecting columns, and the recessed part is located on one side of the line connecting the geometric centers of the multiple connecting columns. The height of the first reinforcing ribs located on both sides of the line connecting the geometric centers of the multiple connecting columns gradually decreases in the direction away from the geometric center of the connecting column.

[0021] The above-described optional embodiments of this application achieve the following beneficial effects: By placing the clearance recess on one side of the geometric center line connecting multiple connecting posts, this design fully utilizes the internal space of the fuel tank, ensuring unobstructed installation and operation of the fuel pump and other critical components, while maximizing the effective working area of ​​the baffle plate and improving its anti-surge effect. The height of the reinforcing rib gradually decreases along the direction away from the geometric center line connecting the connecting posts, forming an asymmetrical spatial layout. This layout reduces the interference of the reinforcing ribs on the oil flow channel, avoiding local blockage of oil flow. Furthermore, the gradually decreasing height of the first reinforcing rib better adapts to changes in the internal space of the fuel tank, especially when the fuel tank shape is irregular or contains special components. This design maximizes the use of available space without affecting the normal flow of oil. The gradually decreasing height of the first reinforcing rib also effectively reduces the weight of the baffle plate assembly, achieving a lightweight design.

[0022] Furthermore, there are two wave deflector assemblies, and the clearance structures of the two wave deflector assemblies are arranged opposite each other to form a clearance space between the two wave deflector assemblies.

[0023] The above-described optional embodiments of this application achieve the following beneficial effects: the clearance space between the two baffle assemblies provides an optimal installation position for the fuel pump and other key fuel tank components. This space reservation not only ensures unobstructed installation of the fuel pump but also provides greater flexibility for the arrangement of fuel tank components (such as floats), which is beneficial for optimizing the overall layout of the fuel system, reducing mutual interference between components, and improving the utilization efficiency of the internal space of the fuel tank. By setting two baffle assemblies, the amount of material used is reduced, achieving a lightweight structure, while maintaining sufficient structural strength through the synergistic effect of the two panels. This modular design can be further customized according to the internal structure of the fuel tank to improve space utilization.

[0024] Furthermore, there are multiple vertical panels, which are spaced apart in the horizontal direction. Adjacent vertical panels are connected by connecting horizontal panels. Multiple horizontal panels are provided on the side of the vertical panel away from the connecting horizontal panels, and the multiple horizontal panels are spaced apart in the vertical direction.

[0025] The above-described optional embodiments of this application achieve the following beneficial effects: the combined design of multiple longitudinal and transverse panels allows the baffle structure to be flexibly adjusted according to the specific layout inside the fuel tank. This design enables the baffle to better adapt to the shape and size of the fuel tank, achieving efficient space utilization even in cases where the fuel tank has a complex internal structure or requires specific space, without affecting its anti-surge performance. The modular connection of the longitudinal and transverse panels makes the installation and maintenance of the baffle structure simpler and more efficient. When replacing components or upgrading the system inside the fuel tank, the longitudinal or transverse panels can be operated independently without disassembling the entire fuel tank, greatly reducing maintenance costs and time consumption.

[0026] Furthermore, there are multiple vertical panels, which are spaced apart horizontally, and multiple horizontal panels, which are spaced apart vertically, and each horizontal panel is connected to each vertical panel.

[0027] The optional embodiments described above achieve the following beneficial effects: multiple longitudinal panels are arranged at intervals along the horizontal direction, and multiple transverse panels are arranged at intervals along the vertical direction. These panels are interconnected, forming a three-dimensional anti-surge network. This network can capture and dissipate the sway energy of the oil in all directions, significantly reducing the amplitude of oil sloshing and thus reducing noise and vibration. This structure exhibits high mechanical stability and rigidity. The multiple longitudinal and transverse panels support each other, maintaining structural stability even under strong oil sloshing, preventing deformation or breakage and ensuring the reliability of the anti-surge baffle during long-term use. By adjusting the number and spacing of the longitudinal and transverse panels, as well as the size and shape of each panel, this design can adapt to fuel tanks of various shapes and volumes. This high degree of versatility and interchangeability allows the anti-surge baffle structure to be easily applied to different vehicle models without requiring redesign, saving development time and costs and improving production efficiency.

[0028] According to another aspect of the embodiments of this application, a vehicle is also provided, including a wave deflector structure, wherein the wave deflector structure is any of the wave deflector structures described above.

[0029] The above-described optional embodiments of this application achieve the following beneficial effects: the introduction of the baffle structure significantly reduces the noise and vibration generated during fuel sloshing. By providing at least one baffle assembly consisting of a horizontal panel and a vertical panel inside the fuel tank, with at least one side of the vertical and horizontal panels forming a clearance structure for installing the fuel pump, the fluctuation of the fuel fluid during vehicle acceleration, deceleration, turning, or driving on uneven road surfaces can be effectively controlled, thereby reducing the impact of the fuel fluid on the fuel tank wall, and further reducing the noise and vibration caused by fuel fluid fluctuations, thus improving the overall NVH performance of the vehicle. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the first embodiment of the wave-damping structure provided in this application;

[0031] Figure 2 This is a schematic diagram of the second embodiment of the wave-damping structure provided in one embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the third embodiment of the wave-damping structure provided in one embodiment of this application;

[0033] Figure 4 This is a schematic diagram of the fourth embodiment of the wave-damping structure provided in one embodiment of this application;

[0034] Figure 5 This is a schematic diagram of the fifth embodiment of the wave deflector structure provided in one embodiment of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Horizontal panel;

[0037] 2. Longitudinal panel;

[0038] 3. Avoidance structure; 30. Avoidance space;

[0039] 4. Oil fluid hole;

[0040] 5. Connecting column;

[0041] 6. First reinforcing rib;

[0042] 7. Second reinforcing rib;

[0043] 8. First vertical panel;

[0044] 9. Second vertical panel;

[0045] 10. First hole;

[0046] 11. Connect the horizontal panels;

[0047] 12. Avoid recessed areas. Detailed Implementation

[0048] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0049] Existing baffle designs mostly employ a single flat plate structure, typically parallel or perpendicular to the inner wall of the fuel tank, to obstruct fuel flow. For example, the Trumpchi GM8 fuel tank's baffle has a column at its bottom for connection to the fuel tank, and the bottom of the baffle also has multiple first through holes to disperse fuel flow and cushion its impact on the top of the fuel tank, thereby eliminating sloshing noise. However, this traditional baffle design has the following technical problems:

[0050] 1. Design bias: Traditional wave deflectors tend to use relatively heavy materials and structures to ensure sufficient strength and stability, but this results in a large overall weight of the wave deflector. For modern vehicles that pursue lightweight design, this structure is not ideal.

[0051] 2. Higher cost: Due to the heavy design, the material and manufacturing costs increase. In addition, the manufacturing process of traditional wave barriers is relatively complex, requiring precise molds and processing technology, which further increases the production cost.

[0052] 3. Poor versatility: Existing baffle designs are often customized for specific fuel tank shapes and sizes, lacking flexibility and versatility, making it difficult to meet the diverse needs of different vehicle models and fuel tanks, resulting in high mold development costs and product development cycles.

[0053] 4. Inconvenient installation and maintenance: Most baffles are fixed to the inner wall of the fuel tank by welding or clips, which not only makes the installation process complicated, but also makes subsequent maintenance or replacement inconvenient, increasing maintenance costs.

[0054] 5. Lack of design flexibility: Existing wave deflector designs mainly rely on later testing and continuous modification, lacking a systematic design method and insufficient understanding of the mechanism of fuel sloshing noise, resulting in a time-consuming design process and unstable results.

[0055] This application provides an embodiment of a wave-damping structure; please refer to [the relevant documentation]. Figure 1 , Figure 2 and Figure 3 The system includes: a baffle assembly disposed inside the fuel tank, the baffle assembly having at least one baffle assembly, the baffle assembly including a horizontal panel 1 and a vertical panel 2, the horizontal panel 1 and the vertical panel 2 being at least one, the horizontal panel 1 being clearance-fitted with the inner wall of the fuel tank, and the vertical panel 2 being disposed at an angle to the horizontal panel 1; wherein, at least one side of the vertical panel 2 and the horizontal panel 1 forms a clearance structure 3 for mounting a fuel pump.

[0056] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: By applying the technical solution of this utility model, by setting at least one anti-surge baffle assembly composed of a horizontal panel 1 and a vertical panel 2 inside the fuel tank, the fuel is divided into multiple independent or semi-independent areas by utilizing the three-dimensional spatial characteristics of the fuel tank. This disperses the energy of fuel sloshing, reducing noise and vibration caused by fuel fluctuations. The clearance structure designed at at least one side of the horizontal and vertical panels ensures that the fuel pump can pass smoothly without additional cutting or adjustment of the anti-surge baffle, simplifying the fuel pump installation process. At the same time, the design of the clearance structure 3 takes into account the clearance fit with the inner wall of the fuel tank, ensuring the installation positioning accuracy and stability of the anti-surge baffle assembly, and solving the problem of poor versatility of the existing anti-surge baffle structure.

[0057] Example 1

[0058] In this embodiment, the wave deflector assembly includes: a connecting post 5, at least one connecting post 5 is provided, the axis of the connecting post 5 is perpendicular to the horizontal panel 1, the bottom of the connecting post 5 is connected to the bottom of the fuel tank, and the connecting post 5 is connected to at least one of the horizontal panel 1 and the vertical panel 2.

[0059] The above-mentioned optional embodiments of this application can achieve the following beneficial effects: the axis of the connecting column 5 is set perpendicular to the horizontal panel. This vertical positioning method not only ensures the upright stability of the baffle assembly inside the fuel tank, but also provides a stable support point for the baffle assembly through the tight connection between the bottom of the connecting column 5 and the bottom of the fuel tank, which greatly reduces the risk of baffle displacement or deformation caused by vehicle vibration or oil impact.

[0060] Furthermore, multiple horizontal panels 1 are provided, and the vertical panels 2 include a first vertical panel 8 and a second vertical panel 9. Multiple horizontal panels 1 are all connected to the first vertical panel 8. The first vertical panel 8 is connected to the connecting column 5. Multiple horizontal panels 1 are arranged at intervals along the height direction of the fuel tank. The second vertical panel 9 is arranged between adjacent horizontal panels 1, and a buffer space is formed between adjacent second vertical panels 9, the first vertical panel 8, and the horizontal panels 1.

[0061] The above-described optional embodiments of this application achieve the following beneficial effects: Multiple horizontal panels are spaced apart along the height of the fuel tank. This design effectively controls fluctuations in fuel level. Since fuel sloshing typically varies with height, the lower-level horizontal panels 1 focus more on controlling the basic horizontal movement of the fuel, while the higher-level horizontal panels focus on controlling minor surface fluctuations. This multi-layered control strategy significantly enhances the anti-sloshing effect. The second vertical panel 9 is positioned between adjacent horizontal panels 1, forming a buffer space together with the first vertical panel 8 and the horizontal panels 1. These buffer spaces divide the fuel into multiple small areas, allowing for temporary storage and regulation of the fuel. When the fuel fluctuates, the flow rate and pressure changes within the buffer spaces are slower, effectively absorbing the energy of the fuel fluctuations and further reducing the impact of the fuel on the tank walls.

[0062] In one exemplary embodiment, multiple horizontal panels 1 are spaced apart along the height of the fuel tank. The top horizontal panel 1 has a first hole 10, which is used to avoid the valve body on the fuel tank. By setting a dedicated first hole on the top horizontal panel to avoid the valve body on the fuel tank, direct contact between the horizontal panel and the valve body is avoided, thereby reducing the flow resistance of the fuel near the valve body. Through the avoidance design of the first hole 10, the fuel is guided in other directions when it approaches the valve body, effectively avoiding direct impact and protecting the valve body from mechanical damage and performance degradation. By setting the first hole, sufficient space is ensured around the valve body for normal operation, and its opening, closing, or other adjustment functions are not affected by the obstruction of the baffle, thus ensuring the safe operation of the fuel system.

[0063] In another exemplary embodiment, the horizontal panel is positioned parallel to the fuel tank surface, and its height is set according to GFD simulation animations for different fuel levels. The vertical panel is positioned perpendicular to the fuel surface, with the vertical panel 2 and the horizontal panel 1 arranged at an angle. Both the vertical and horizontal panels meet the requirements for built-in and two-piece installation processes. Through GFD simulation animation analysis, the dynamic changes of the fuel under different driving conditions can be accurately predicted, including the direction, speed, and frequency of fuel sloshing. Based on this data, this invention can adjust the height of the horizontal panel to ensure that it is always at the optimal fuel level control point, thereby effectively suppressing fuel sloshing, reducing the force of fuel impacting the fuel tank wall, and reducing sloshing noise. Setting the height of the horizontal panel according to the guidance of GFD simulation animation avoids the ineffective occupation of the internal space of the fuel tank by the baffle structure. In this way, the storage capacity of the fuel tank is maximized, while ensuring the compatibility of the baffle layout with other key components inside the fuel tank (such as the fuel pump, sensors, etc.), avoiding structural conflicts, and optimizing the internal space layout of the fuel tank. By employing a specific angle between the horizontal and vertical panels, the baffle structure of this invention exhibits excellent structural strength and weight balance. The angled design enhances the stability of the baffle, preventing deformation or displacement under oil impact. Simultaneously, the rational structural layout reduces unnecessary material usage, lowering the overall weight of the baffle, thus helping to reduce vehicle load and improve fuel efficiency. The baffle structure meets the installation requirements of both built-in and two-piece processes. This means that during production, the baffle can be either integrally injection molded or welded and directly installed into the fuel tank, or it can be manufactured in two separate pieces and assembled. This design increases manufacturing flexibility, reduces production costs, and facilitates adjustments under different manufacturing conditions, improving process adaptability.

[0064] Furthermore, multiple oil holes 4 are provided on the longitudinal panel 2, the first longitudinal panel 8, the second longitudinal panel 9, and the transverse panel 1.

[0065] The above-described optional embodiments of this application can achieve the following beneficial effects: Multiple oil holes 4 are distributed on the horizontal panel 1. The main function of the horizontal panel 1 is to block the horizontal sloshing of oil through its planar structure, while the holes allow the oil to pass through in a dispersed state, thereby reducing the impact force of the oil on the top of the tank and weakening the energy of horizontal oil fluctuations. Multiple oil holes 4 are also provided on the vertical panel 2, the first vertical panel 8, and the second vertical panel 9. Their function is to control the flow speed of the oil in the vertical direction, reduce the impact force when the oil height changes, ensure that oil fluctuations are effectively buffered and controlled in the vertical direction, and further reduce the impact of the oil on the top of the tank. Through the coordinated work of the horizontal panel 1 and the vertical panel 2, and the design of the oil holes 4 on the panels, the anti-sloshing plate structure can significantly reduce the sloshing of oil in both the horizontal and vertical directions, reduce the impact of the oil on the inner wall of the tank, and thus effectively suppress the generation of sloshing noise.

[0066] In this embodiment, the diameter of the oil filling hole 4 ranges from 2 to 5 mm. The choice of hole size also considers avoiding acoustic resonance within the fuel tank. A hole diameter range of 2 to 5 mm prevents the formation of sound waves of a specific frequency during oil flow, thus preventing resonance between the internal space of the fuel tank and the sound wave frequency, further reducing noise generation. The 2 to 5 mm diameter oil filling hole 4 ensures the structural strength of the baffle plate while also controlling weight. The perforated design on the baffle plate reduces material usage, lightens the weight of the baffle plate, and minimizes its impact on the overall weight of the fuel tank, while maintaining sufficient structural strength to withstand the impact of the oil.

[0067] Furthermore, multiple parallel second reinforcing ribs 7 are provided on both sides of the first longitudinal panel 8.

[0068] The above-described optional embodiments of this application achieve the following beneficial effects: the provision of the second reinforcing rib effectively improves the lateral strength and overall rigidity of the first longitudinal panel. During vehicle operation, the sloshing of oil not only generates forces in the vertical and horizontal directions but may also exert lateral forces on the longitudinal panel. The second reinforcing rib effectively resists these lateral forces by increasing the lateral support of the material, ensuring that the longitudinal panel maintains its shape even under extreme working conditions, avoiding structural deformation, and enhancing the anti-surge effect.

[0069] Example 2

[0070] like Figure 2 As shown, a horizontal panel 1 is provided, which is connected to the connecting column 5. A relief recess 12 is provided on one side of the horizontal panel 1. The vertical panel 2 extends along the edge of the relief recess 12 and is connected to the edge of the relief recess 12.

[0071] The above-described optional embodiments of this application achieve the following beneficial effects: The recessed portion 12 on the horizontal panel 1 provides a precise installation space for the fuel pump, avoiding direct contact between the baffle and the fuel pump, and simplifying the fuel pump installation process. This design ensures that the fuel pump is not subjected to additional obstruction or wear during installation, and also facilitates subsequent maintenance and replacement of the fuel pump. The recessed portion design not only saves internal space in the fuel tank, but also adapts to the differences in fuel pump position in different vehicle models, improving the versatility of the baffle structure. This design allows the baffle to efficiently utilize internal space while maintaining the original layout of the fuel tank, achieving the dual goals of structural lightweighting and functional enhancement.

[0072] Furthermore, at least one surface of the horizontal panel 1 is provided with a first reinforcing rib 6, and there are multiple first reinforcing ribs 6, which extend in the vertical direction.

[0073] The above-described optional embodiments of this application achieve the following beneficial effects: the arrangement of multiple first reinforcing ribs 6 extending vertically is equivalent to adding several vertical support beams to the horizontal panel. This not only increases the panel's bending resistance but also, during oil impact, the reinforcing ribs can disperse and absorb some of the impact force, preventing excessive deformation or breakage of the horizontal panel, thereby significantly improving the structural strength and durability of the wave deflector assembly. The first reinforcing ribs 6 and the surface of the horizontal panel form numerous vertical "microchannels." When oil attempts to flow from one side to the other, these microchannels significantly increase the flow resistance of the oil, forcing the oil to flow around or through the oil holes, thereby further controlling and slowing down the flow rate of the oil, achieving a more precise oil sloshing control effect.

[0074] Furthermore, there are multiple connecting columns 5, and the recess 12 is located on one side of the line connecting the geometric centers of the multiple connecting columns 5. The height of the first reinforcing ribs 6 located on both sides of the line connecting the geometric centers of the multiple connecting columns 5 is gradually reduced in the direction away from the geometric center of the connecting column 5.

[0075] The above-described optional embodiments of this application achieve the following beneficial effects: Positioning the clearance recess 12 on one side of the geometric center line connecting multiple connecting posts fully utilizes the internal space of the fuel tank, ensuring unobstructed installation and operation of the fuel pump and other critical components, while maximizing the effective working area of ​​the baffle plate and improving its anti-surge effect. The height of the reinforcing rib gradually decreases along the direction away from the geometric center line connecting the connecting posts, forming an asymmetrical spatial layout. This layout reduces the interference of the reinforcing ribs on the oil flow channel, avoiding localized blockage of oil flow. Furthermore, the gradually decreasing height of the first reinforcing rib better adapts to changes in the internal space of the fuel tank, especially when the fuel tank shape is irregular or contains special components. This design maximizes the use of available space without affecting the normal flow of oil. The gradually decreasing height of the first reinforcing rib also effectively reduces the weight of the baffle plate assembly, achieving a lightweight design.

[0076] In this embodiment, two connecting columns 5 are provided. The number of connecting columns 5 can be set according to the specific size of the fuel tank. CFD (Computational Fluid Dynamics) software is used to simulate oil flow, testing the impact of different numbers and layouts of connecting columns on oil flow, and finding a connecting column configuration that maintains structural stability without affecting oil flow. The number and layout of connecting columns should also consider the installation and maintenance process of the baffle. Setting an appropriate number of connecting columns can simplify the installation steps and reduce the complexity of disassembly and reassembly when maintenance or replacement of the baffle is required, thereby reducing maintenance costs and time.

[0077] Example 3

[0078] like Figure 3 As shown, there are two wave deflector assemblies, and the clearance structures 3 of the two wave deflector assemblies are arranged opposite each other so that a clearance space 30 is formed between the two wave deflector assemblies.

[0079] The above-described optional embodiments of this application achieve the following beneficial effects: the clearance space between the two baffle assemblies provides an optimal installation position for the fuel pump and other key fuel tank components. This space reservation not only ensures unobstructed installation of the fuel pump but also provides greater flexibility for the arrangement of fuel tank components (such as floats), which is beneficial for optimizing the overall layout of the fuel system, reducing mutual interference between components, and improving the utilization efficiency of the internal space of the fuel tank. By setting two baffle assemblies, the amount of material used is reduced, achieving a lightweight structure, while maintaining sufficient structural strength through the synergistic effect of the two panels. This modular design can be further customized according to the internal structure of the fuel tank to improve space utilization.

[0080] In this embodiment, the design of the clearance space 30 not only considers the installation requirements of the fuel pump but also pays special attention to reserving sufficient space for the float to move freely. The float rises and falls horizontally with the fuel level inside the fuel tank to indicate the actual fuel level; its range of motion directly affects the accuracy of the fuel gauge reading. By rationally arranging the clearance space 30, this technical solution ensures that the float can completely cover the range of liquid level changes inside the fuel tank, improving the accuracy and reliability of fuel level detection.

[0081] In this embodiment, the wave deflector structure adopts a modular design, which allows each wave deflector component to be manufactured independently and then assembled. This means that the design of a single wave deflector component can be adjusted individually without changing the overall structure to adapt to different fuel tank shapes, sizes, or specific installation requirements. This flexibility can easily cope with future product iterations or changes in different vehicle models without redesigning the entire wave deflector, greatly improving design adaptability and efficiency. Decomposing the wave deflector structure into multiple independent units simplifies mold design and manufacturing in the production process, reducing upfront investment costs. In addition, the modular design also makes on-site assembly simpler and faster, reducing the possibility of assembly errors and improving assembly quality and efficiency.

[0082] Example 4

[0083] like Figure 4 As shown, there are multiple vertical panels 2, which are arranged at intervals along the horizontal direction. There are multiple horizontal panels 1, which are arranged at intervals along the vertical direction, and each horizontal panel 1 is connected to each vertical panel 2.

[0084] The above-described optional embodiments of this application achieve the following beneficial effects: the combined design of multiple longitudinal and transverse panels allows the baffle structure to be flexibly adjusted according to the specific layout inside the fuel tank. This design enables the baffle to better adapt to the shape and size of the fuel tank, achieving efficient space utilization even in cases where the fuel tank has a complex internal structure or requires specific space, without affecting its anti-surge performance. The modular connection of the longitudinal and transverse panels makes the installation and maintenance of the baffle structure simpler and more efficient. When replacing components or upgrading the system inside the fuel tank, the longitudinal or transverse panels can be operated independently without disassembling the entire fuel tank, greatly reducing maintenance costs and time consumption.

[0085] In this embodiment, two horizontal panels 1 and three vertical panels 2 are provided. The two horizontal panels 1 are arranged at intervals along the vertical direction, and the three vertical panels pass through the two horizontal panels 1 sequentially. The three vertical panels 2 are arranged at intervals along the length of the horizontal panels 1, and each horizontal panel 1 is connected to each vertical panel 2. The three-dimensional intersecting layout of the horizontal and vertical panels forms a multi-dimensional anti-surge network. The two horizontal panels arranged at intervals along the vertical direction can effectively isolate oil fluctuations at different liquid levels, reduce the transmission effect of liquid surface fluctuations on the oil above, and thus reduce oil sloshing and noise at the top of the fuel tank. At the same time, the three vertical panels are distributed at intervals along the length of the horizontal panels, further weakening the kinetic energy of oil fluctuations in the longitudinal direction, increasing the complexity of oil flow, and dispersing its energy when passing through the three-dimensional grid, thereby achieving a more comprehensive anti-surge effect. Furthermore, the number of vertical and horizontal panels can be designed according to the specific structure of the fuel tank.

[0086] Example 5

[0087] like Figure 5 As shown, there are multiple vertical panels 2, which are arranged at intervals along the horizontal direction. Adjacent vertical panels 2 are connected by connecting horizontal panels 11. Multiple horizontal panels 1 are arranged on the side of the vertical panel 2 away from the connecting horizontal panels 11, and the multiple horizontal panels 1 are arranged at intervals along the vertical direction.

[0088] The optional embodiments described above achieve the following beneficial effects: multiple longitudinal panels are arranged at intervals along the horizontal direction, and multiple transverse panels are arranged at intervals along the vertical direction. These panels are interconnected, forming a three-dimensional anti-surge network. This network can capture and dissipate the sway energy of the oil in all directions, significantly reducing the amplitude of oil sloshing and thus reducing noise and vibration. This structure exhibits high mechanical stability and rigidity. The multiple longitudinal and transverse panels support each other, maintaining structural stability even under strong oil sloshing, preventing deformation or breakage and ensuring the reliability of the anti-surge baffle during long-term use. By adjusting the number and spacing of the longitudinal and transverse panels, as well as the size and shape of each panel, this design can adapt to fuel tanks of various shapes and volumes. This high degree of versatility and interchangeability allows the anti-surge baffle structure to be easily applied to different vehicle models without requiring redesign, saving development time and costs and improving production efficiency.

[0089] In this embodiment, five horizontal panels 1 and two vertical panels 2 are provided. The two vertical panels 2 are arranged in parallel, and a connecting horizontal panel 11 is provided between the two vertical panels. Two horizontal panels 1 are provided on the outer side of one of the vertical panels 2, and three horizontal panels 1 are provided on the outer side of the other vertical panel 2. The horizontal panels 1 are arranged in parallel along different heights of the fuel tank liquid level, and the multiple horizontal panels 1 are arranged at intervals in the vertical direction. Furthermore, the number of vertical and horizontal panels can be designed according to the specific structure of the fuel tank. The vertical and horizontal panels can be freely combined, making the baffle structure highly versatile, and it can be used for both regular-shaped and long strip-shaped fuel tanks.

[0090] Example 6

[0091] According to another specific embodiment of this application, a vehicle is also provided, including a wave deflector structure, wherein the wave deflector structure is any of the wave deflector structures described above.

[0092] The above-described optional embodiments of this application achieve the following beneficial effects: the introduction of the baffle structure significantly reduces the noise and vibration generated during fuel sloshing. By providing at least one baffle assembly consisting of a horizontal panel and a vertical panel inside the fuel tank, with at least one side of the vertical and horizontal panels forming a clearance structure for installing the fuel pump, the fluctuation of the fuel fluid during vehicle acceleration, deceleration, turning, or driving on uneven road surfaces can be effectively controlled, thereby reducing the impact of the fuel fluid on the fuel tank wall, and further reducing the noise and vibration caused by fuel fluid fluctuations, thus improving the overall NVH performance of the vehicle.

[0093] In this application, "multiple" refers to two or more.

[0094] In this application, unless otherwise expressly defined, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0095] The terms “first,” “second,” “third,” “fourth,” etc., in this application (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0096] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0097] Unless otherwise specified, all steps in this application may be performed sequentially or randomly. For example, if the method includes steps A and B, it means that the method may include steps A and B performed sequentially, or it may include steps B and A performed sequentially. For example, if the method may also include step C, it means that step C may be added to the method in any order. For example, the method may include steps A, B, and C, or it may include steps A, C, and B, or it may include steps C, A, and B, etc.

[0098] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wave-damping structure, characterized in that, include: A wave deflector assembly is disposed inside a fuel tank. The wave deflector assembly is provided with at least one of the following: the wave deflector assembly includes a horizontal panel (1) and a vertical panel (2). The horizontal panel (1) and the vertical panel (2) are provided with at least one of the following: the horizontal panel (1) is clearance-fitted with the inner wall of the fuel tank, and the vertical panel (2) is disposed at an angle to the horizontal panel (1). Wherein, at least one side of the longitudinal panel (2) and the transverse panel (1) is formed with a clearance structure (3) for mounting an oil pump.

2. The wave-damping structure according to claim 1, characterized in that, The wave-damping assembly includes: A connecting post (5) is provided, at least one connecting post (5) is provided, the axis of the connecting post (5) is set perpendicular to the horizontal panel (1), the bottom of the connecting post (5) is connected to the bottom of the fuel tank, and the connecting post (5) is connected to at least one of the horizontal panel (1) and the vertical panel (2).

3. The wave-damping structure according to claim 2, characterized in that, The horizontal panel (1) is provided in multiple ways. The vertical panel (2) includes a first vertical panel (8) and a second vertical panel (9). The multiple horizontal panels (1) are all connected to the first vertical panel (8). The first vertical panel (8) is connected to the connecting column (5). The multiple horizontal panels (1) are arranged at intervals along the height direction of the fuel tank. The second vertical panel (9) is arranged between adjacent horizontal panels (1). A buffer space is formed between adjacent second vertical panels (9), the first vertical panel (8), and the horizontal panels (1).

4. The wave-damping structure according to claim 3, characterized in that, Multiple oil holes (4) are provided on the longitudinal panel (2), the first longitudinal panel (8), the second longitudinal panel (9) and the transverse panel (1).

5. The wave-damping structure according to claim 3, characterized in that, The first longitudinal panel (8) has multiple parallel second reinforcing ribs (7) on both sides.

6. The wave-damping structure according to claim 2, characterized in that, The horizontal panel (1) is provided as one, and the horizontal panel (1) is connected to the connecting column (5). A clearance recess (12) is provided on one side of the horizontal panel (1). The vertical panel (2) extends along the edge of the clearance recess (12) and is connected to the edge of the clearance recess (12).

7. The wave-damping structure according to claim 6, characterized in that, At least one surface of the horizontal panel (1) is provided with a first reinforcing rib (6), and there are multiple first reinforcing ribs (6), which extend in the vertical direction.

8. The wave-damping structure according to claim 7, characterized in that, There are multiple connecting columns (5), and the avoidance recess (12) is located on one side of the line connecting the geometric centers of the multiple connecting columns (5). The height of the first reinforcing rib (6) on both sides of the line connecting the geometric centers of the multiple connecting columns (5) is gradually reduced along the direction away from the geometric center of the connecting column (5).

9. The wave-damping structure according to claim 2, characterized in that, Two wave deflector assemblies are provided, and the avoidance structures (3) of the two wave deflector assemblies are arranged opposite to each other so that an avoidance space (30) is formed between the two avoidance structures (3).

10. The wave-damping structure according to claim 1, characterized in that, There are multiple vertical panels (2), which are arranged at intervals in the horizontal direction. Adjacent vertical panels (2) are connected by connecting horizontal panels (11). Multiple horizontal panels (1) are arranged on the side of the vertical panel (2) away from the connecting horizontal panels (11), and the multiple horizontal panels (1) are arranged at intervals in the vertical direction.

11. The wave-damping structure according to claim 1, characterized in that, There are multiple vertical panels (2), which are spaced apart horizontally. There are also multiple horizontal panels (1), which are spaced apart vertically. Each of the horizontal panels (1) is connected to each of the vertical panels (2).

12. A fuel tank, comprising a baffle structure, characterized in that, The wave-breaking plate structure is the wave-breaking plate structure according to any one of claims 1 to 11.

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