Flat high-pressure plastic fuel tank noise reduction structure

Abstract

The utility model relates to the technical field of fuel tanks, and provides a flat high-pressure plastic fuel tank noise reduction structure which is installed in a fuel tank and used for reducing noise generated in the shaking process of oil in the fuel tank and comprises a plurality of wave-proof plates arranged in the fuel tank and used for reducing noise generated in the shaking process of the oil in the fuel tank. The wave-proof plate is provided with a scattering space and a plurality of liquid passing holes communicated with the scattering space, the scattering space is used for containing oil liquid, and the liquid passing holes are used for scattering the oil liquid flapped on the wave-proof plate; the multiple supporting columns are detachably arranged on the wave-proof plate, and the supporting columns are used for being supported on the oil tank to fix the wave-proof plate. By means of the technical scheme, the technical problems that in the prior art, when a flat oil tank shakes, large noise can be generated, an existing noise reduction structure can affect the bearing structure of the oil tank, and consequently the bearing capacity of the oil tank is obviously reduced are solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of fuel tank technology, and more specifically, to a flat, high-pressure plastic fuel tank noise reduction structure. Background Technology

[0002] In the modern automotive industry, the fuel tank is a crucial component for storing vehicle fuel. With the continuous development of automotive design, various fuel tank shapes have been increasingly adopted to adapt to vehicle chassis layout and space utilization requirements, among which the flat-shaped fuel tank is one type. However, flat-shaped fuel tanks present some problems during use. The flow and sloshing of fuel within the tank, along with the vibrations generated by the fuel pump, produce significant noise. This noise problem is even more pronounced for plastic fuel tanks operating under high-pressure environments.

[0003] Traditional fuel tank structures are often ineffective at noise reduction. Noise not only affects the comfort of the vehicle interior, but prolonged exposure to high-noise environments can also negatively impact the physical and mental health of drivers and passengers. While existing noise-reducing fuel tanks can achieve some noise reduction, they compromise the tank's load-bearing structure, leading to a significant decrease in its load-bearing capacity. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a flat high-pressure plastic fuel tank noise reduction structure, which solves the technical problem that flat fuel tanks generate a lot of noise when shaken, and that existing noise reduction structures affect the load-bearing structure of the fuel tank, resulting in a significant decrease in the load-bearing capacity of the fuel tank.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a flat, high-pressure plastic fuel tank noise reduction structure, comprising:

[0006] For example, in at least one embodiment of the present disclosure, a flat high-pressure plastic fuel tank noise reduction structure further includes:

[0007] According to one aspect, at least one embodiment of this disclosure provides a flat, high-pressure plastic fuel tank noise reduction structure installed inside the fuel tank for reducing noise generated during fuel sloshing inside the tank, including:

[0008] A number of anti-surge plates are disposed inside the oil tank. Each anti-surge plate has a dispersing space and a number of liquid passage holes communicating with the dispersing space. The dispersing space is used to contain oil, and the liquid passage holes are used to disperse the oil that is splashed onto the anti-surge plate.

[0009] Several support columns are detachably mounted on the wave deflector plate, and the support columns are used to support and fix the wave deflector plate on the oil tank.

[0010] For example, the flat high-pressure plastic fuel tank noise reduction structure provided by at least one embodiment of the present disclosure comprises:

[0011] The first baffle is arranged on the oil tank in a relatively fixed manner.

[0012] The second baffle is arranged on the first baffle, and the first baffle and the second baffle form the dispersing space after the wave plate is installed.

[0013] For example, the flat high-pressure plastic fuel tank noise reduction structure provided by at least one embodiment of the present disclosure further comprises:

[0014] The fixing seat is arranged on the first baffle.

[0015] The connecting block is arranged at an end of the fixing seat away from the first baffle, and the connecting block is used for fixed connection with the inner wall of the oil tank.

[0016] For example, the flat high-pressure plastic fuel tank noise reduction structure provided by at least one embodiment of the present disclosure comprises:

[0017] For example, the flat high-pressure plastic fuel tank noise reduction structure provided by at least one embodiment of the present disclosure further comprises:

[0018] The supporting rib plate is arranged on the first baffle and / or the second baffle, and the supporting rib plate is used for strengthening the load-bearing capacity of the wave plate.

[0019] For example, the flat high-pressure plastic fuel tank noise reduction structure provided by at least one embodiment of the present disclosure comprises:

[0020] The mounting plate is arranged in the avoiding groove, the supporting column is detachably arranged on the mounting plate, and the supporting column is arranged on the wave plate through the mounting plate.

[0021] For example, the flat high-pressure plastic fuel tank noise reduction structure provided by at least one embodiment of the present disclosure comprises:

[0022] Plug, having several, one end is arranged on the mounting plate, the plug is configured to be installed after the support column, the other end of the plug passes through the slot hole, the plug is used for fixing the support column, the end of the plug away from the mounting plate has several elastic clamping parts, and the elastic clamping parts are used for clamping the slot hole.

[0023] For example, the flat high-pressure plastic fuel tank noise reduction structure provided by at least one embodiment of the present disclosure further comprises:

[0024] Pipe clamp, having several, arranged on the second baffle, and several pipe clamps are used for fixing the oil inlet pipeline connected with the oil distributor and the oil inlet of the oil tank.

[0025] For example, the flat high-pressure plastic fuel tank noise reduction structure provided by at least one embodiment of the present disclosure further comprises:

[0026] The embodiments of the present disclosure have the following beneficial effects:

[0027] In the present disclosure, when the oil in the tank hits the wave plate due to shaking during vehicle driving, part of the oil enters the dispersion space, buffering the impact force of the oil. At the same time, the remaining oil is dispersed through the liquid passage, changing the flow direction and speed, reducing the concentrated impact on the tank wall, thereby reducing noise generation. The support column supports the wave plate in the tank, ensuring that the position of the wave plate does not change under the continuous impact of the oil, and continuously and effectively plays a noise reduction role. If it is necessary to maintain, replace or adjust the position of the wave plate, the support column can be easily disassembled to complete the operation. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present disclosure. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. For those skilled in the art, other drawings can also be obtained according to the content of the example embodiments of the present disclosure and these drawings without paying creative labor.

[0029] Figure 1 It is a structural schematic diagram of all wave plates in the present disclosure;

[0030] Figure 2 It is a structural schematic diagram of the first wave plate in the present disclosure;

[0031] Figure 3 It is a structural schematic diagram of the second wave plate in the present disclosure; Figure 2

[0032] Figure 4 It is a structural schematic diagram of the second wave plate in the present disclosure;​

[0033] Figure 5 For the third block of the present disclosure Figure 4 Local enlarged view at B in the present disclosure

[0034] Figure 6 For the third block of the present disclosure

[0035] In the figure: 100, oil tank, 200, wave board, 201, dispersion space, 202, liquid hole, 300, support column, 210, first baffle, 220, second baffle, 230, fixing seat, 240, connecting block, 250, support rib plate, 260, avoiding groove, 270, mounting plate, 310, slot hole, 241, plug, 242, elastic block, 400, oil distributor, 500, oil inlet, 410, oil inlet pipeline, 280, pipe clamp. DETAILED DESCRIPTION

[0036] The present disclosure will be further described in detail below with reference to the accompanying drawings and examples. It can be understood that the specific examples described herein are only used to explain the present disclosure, and not to limit the present disclosure.

[0037] In order to make the drawing simple, only the parts related to the disclosure are shown in each figure, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some figures, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0038] In this paper, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0039] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the disclosed description, terms such as “up,” “down,” “left,” and “right” refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0041] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] like Figures 1-6 As shown, this illustration depicts a flat, high-pressure plastic fuel tank noise reduction structure according to one embodiment of the present disclosure. This noise reduction structure is installed inside the fuel tank 100 and mainly consists of baffles 200 and support columns 300. Multiple baffles 200 are disposed within the fuel tank 100, each having a dispersing space 201 and several fluid passage holes 202 communicating with it. When the fuel sloshes and strikes the baffles 200 within the fuel tank, the dispersing space 201 can accommodate some of the fuel, buffering the impact force. Simultaneously, the fluid passage holes 202 disperse the fuel striking the baffles, changing the flow direction and speed of the fuel, reducing the noise generated by the concentrated impact of the fuel against the tank wall. The baffles 200 are typically made of high-strength plastic compatible with the fuel tank material, such as engineering plastics or high-density polyethylene, possessing good oil resistance and mechanical strength, capable of withstanding long-term fuel impact without easily being damaged. Their shape can be designed according to the internal space of the fuel tank and the flow characteristics of the fuel, such as being wavy, zigzag, or irregular in shape, to better guide the flow of the fuel and disperse the impact force. Multiple support columns 300 are detachably mounted on the baffle plate 200. Their function is to securely support the baffle plate 200 on the fuel tank 100, ensuring that the baffle plate 200 can be installed in a suitable position inside the fuel tank and effectively perform noise reduction. The support columns 300 can be cylindrical, square, or polygonal in shape, and their length is determined according to the internal height of the fuel tank and the installation position of the baffle plate 200.

[0043] In actual use, when the oil in the tank is shaken and hits the wave plate 200 during vehicle driving, part of the oil enters the dispersion space 201, buffering the impact force of the oil. At the same time, the remaining oil is dispersed through the liquid passage 202, changing the flow direction and speed, reducing the concentrated impact on the tank wall, thereby reducing noise generation. The support column 300 supports the wave plate 200 in the tank 100, ensuring that the wave plate 200 does not change position under the continuous impact of the oil, and continuously and effectively plays a noise reduction role. If it is necessary to maintain, replace or adjust the position of the wave plate 200, the support column 300 can be easily disassembled to complete the operation.

[0044] In some examples, the first baffle 210 serves as a basic support and is stably connected to the tank 100, providing a reliable installation foundation for the entire wave plate 200 and ensuring its stability in the tank. The second baffle 220 is arranged on the first baffle 210 and cooperates with the first baffle 210 to enclose the dispersion space 201. When the oil hits the wave plate 200, it first contacts the second baffle 220, and part of the oil is blocked by the second baffle 220 into the dispersion space 201, forming a buffer in the space and reducing the impact force of the oil. Subsequently, the buffered oil is further dispersed through the liquid passage 202, thereby more effectively reducing the noise generated by the oil shaking. The layered structure of the first baffle 210 and the second baffle 220 allows the oil to undergo two buffering and dispersion processes when it hits the wave plate 200, which can more effectively reduce the noise generated by the oil shaking compared to a single-structure wave plate, further improving the quietness of the vehicle and providing a more comfortable riding environment for the driver and passengers.

[0045] In actual use, when the oil in the tank is shaken and hits the wave plate 200 during vehicle driving, it first contacts the second baffle 220. Part of the oil is blocked by the second baffle 220 into the dispersion space 201 formed by the first baffle 210 and the second baffle 220, and the impact force of the oil in the space is buffered. With the accumulation of oil, part of the buffered oil flows out through the liquid passage 202 on the second baffle 220. The first baffle 210 is stably fixed to the tank 100, ensuring the stability of the entire wave plate 200 under the impact of the oil and continuously and effectively playing a noise reduction function. The layered structure facilitates maintenance and adjustment of the wave plate 200.

[0046] In some examples, the arrangement of the fixing seats 230 and the connecting blocks 240 greatly improves the connection strength of the first baffle plate 210 and the inner wall of the oil tank 100. The uniform distribution of the fixing seats 230 and the connecting blocks 240 on the first baffle plate 210 can more evenly disperse the impact force of the oil on the first baffle plate 210, reduce the risk of deformation or loosening caused by excessive local stress, and ensure that the anti-slosh plate 200 works stably in the oil tank for a long time, thereby continuously and effectively reducing the noise caused by the sloshing of the oil. The fixing seat 230 is usually made of the same or similar high-strength material as the first baffle plate 210 to ensure its compatibility with the first baffle plate 210 and the overall structural strength. For example, if the first baffle plate 210 is made of high-strength plastic, the fixing seat 230 can also be made of the same type of engineering plastic, and the strength can be further improved by adding fiber reinforced materials and the like.

[0047] In actual use, the fixing seat 230 is first integrally formed on the first baffle plate 210 by injection molding. Then the connecting block 240 is installed at the end of the fixing seat 230 away from the first baffle plate 210, so that the connecting block 240 and the fixing seat 230 form a stable connection structure. Finally, the connecting block 240 is fixed to the inner wall of the oil tank 100, thereby completing the fixed installation of the first baffle plate 210 and the inner wall of the oil tank. When the oil in the oil tank sloshes and impacts the anti-slosh plate 200, the impact force of the oil is first transmitted to the first baffle plate 210. The first baffle plate 210 transmits the force to the connecting block 240 through the fixing seat 230, and the connecting block 240 transmits the force to the inner wall of the oil tank. Due to the fixing seat 230 and the connecting block 240, the connection between the first baffle plate 210 and the inner wall of the oil tank is more stable, can withstand greater impact force of the oil, ensures the position of the first baffle plate 210 in the oil tank stable, and further ensures the normal work of the dispersing space 201 and the liquid passage 202, effectively reducing the noise caused by the sloshing of the oil.

[0048] In some examples, the cylindrical fixing seat 230 is combined with the connecting block 240 arranged at equal intervals and concentrically around the circumference, which enhances the uniformity of the force on the connection between the first baffle plate 210 and the inner wall of the oil tank. This makes the anti-slosh plate 200 more balanced in force at each part when subjected to the dynamic impact of the oil, greatly reducing the risk of structural deformation or damage caused by uneven local stress. It improves the stability of the entire noise reduction structure in the oil tank, ensures that it can work stably for a long time, and continuously and effectively reduces the noise caused by the sloshing of the oil.

[0049] In practical applications, when the oil in the oil tank shakes and impacts the wave plate 200, the first baffle 210 bears the impact force of the oil and transmits the force to the fixed seat 230. The cylindrical fixed seat 230 uniformly disperses the force to each connecting block 240 due to its uniform stress characteristics. The connecting blocks 240 arranged in a circle at equal intervals and concentrically uniformly transmit the force to the inner wall of the oil tank, so that the force borne by each part of the inner wall of the oil tank is more balanced. This uniform stress mode ensures the stable position of the first baffle 210 in the oil tank, ensures the normal work of the dispersion space 201 and the liquid passage hole 202 of the wave plate 200, effectively buffers and disperses the oil, and reduces the noise generated by the oil shaking.

[0050] In some examples, when the oil in the oil tank shakes and impacts the wave plate 200, the first baffle 210 and the second baffle 220 will bear a large pressure. By providing the support rib plate 250 on the baffles, the stress distribution of the baffles can be changed, the concentrated impact force can be dispersed to a larger area, and the carrying capacity of the baffles can be enhanced. In addition, the support rib plate 250 can also increase the stiffness of the baffle, reduce the deformation of the baffle under the impact of the oil, maintain the shape and position stability of the dispersion space 201 and the liquid passage hole 202, and ensure that the wave plate 200 continuously and effectively plays a noise reduction function.

[0051] In some examples, the wave plate 200 is provided with an avoiding groove 260 to provide a space for the installation plate 270 to be positioned and installed, and also to leave an operation space for the installation and disassembly of the support column 300. The installation plate 270 is arranged in the avoiding groove 260, and the support column 300 can be detachably fixed to the wave plate 200 through the installation plate 270. Not only the installation, disassembly and replacement of the support column 300 are ensured, but also the flexibility and adjustability of the entire noise reduction structure are enhanced.

[0052] In actual use, when installing the support column 300, first, the installation plate 270 is installed in the avoiding groove 260 of the wave plate 200 to ensure that the installation plate 270 is fixed and stable in the avoiding groove 260. Then, according to the connection mode of the support column 300 and the installation plate 270, the support column 300 is installed on the installation plate 270. After installation is completed, the support column 300 provides support for the wave plate 200 through the installation plate 270, enhancing the stability of the wave plate 200 in the oil tank. During the operation of the equipment, when the oil in the oil tank shakes and impacts the wave plate 200, the support column 300 bears part of the impact force and transmits it to the wave plate 200 through the installation plate 270. The avoiding groove 260 and the installation plate 270 can effectively disperse the stress and avoid damage to the wave plate 200 due to excessive local stress. At the same time, if the support column 300 needs to be maintained, replaced or adjusted in position, the connection between the support column 300 and the installation plate 270 can be first disassembled, and then the installation plate 270 can be taken out of the avoiding groove 260, which is simple and convenient and will not greatly affect the wave plate 200.

[0053] In some examples, after the plug 241 passes through the slot hole 310, the elastic clamping part 242 tightly clamps into the slot hole 310, forming a mechanical locking structure, which greatly enhances the connection strength between the support column 300 and the mounting plate 270. Under the action of complex dynamic load generated by the oil liquid in the oil tank, this connection method can effectively prevent the support column 300 and the mounting plate 270 from loosening or separating, ensuring that the anti-wave plate 200 is always stably supported, thereby ensuring that the noise reduction structure continues to effectively play a role. The elastic clamping part 242 is usually designed as an elastic arm structure extending from the end of the plug 241 to all around, and the number is generally 2-4, which are evenly distributed on the end of the plug 241. The shape of the elastic arm can be arc, trapezoidal or triangular, etc. By reasonably designing the thickness, length and angle of the elastic arm, it has appropriate elastic deformation capacity.

[0054] When installing the support column 300, align the support column 300 with the plug 241 on the mounting plate 270, and then push the support column 300 to the mounting plate 270 with force. When the elastic clamping part 242 of the plug 241 is extruded by the edge of the slot hole 310, it will elastically deform, so that the plug 241 can smoothly pass through the slot hole 310. When the elastic clamping part 242 passes through the slot hole 310, it will return to its original shape and tightly clamp the edge of the slot hole 310, thereby firmly fixing the support column 300 on the mounting plate 270.

[0055] During the operation of the equipment, the force generated by the oil liquid in the oil tank is transmitted to the mounting plate 270 and the anti-wave plate 200 through the support column 300. Since the elastic clamping part 242 tightly clamps into the slot hole 310, it can effectively resist forces in various directions, preventing the support column 300 and the mounting plate 270 from loosening or separating, ensuring the stability of the anti-wave plate 200, and thereby ensuring the normal operation of the noise reduction structure.

[0056] When the support column 300 needs to be disassembled, a special tool or manual operation is used to make the elastic clamping part 242 elastically deform again and separate from the slot hole 310, and then the support column 300 is removed from the mounting plate 270, completing the disassembly process.

[0057] In some examples, the pipe clamp 280 is arranged on the second baffle 220 to fix the oil inlet pipeline 410, and the core design concept is to optimize the layout and stability of the oil inlet pipeline in the fuel tank. The oil inlet pipeline 410 is connected to the oil distributor 400 and the oil inlet 500 of the fuel tank 100. During the fuel filling process, the flow of oil will cause the pipeline to vibrate and displace. By arranging the pipe clamp 280 on the second baffle 220, the support of the second baffle 220 can effectively limit the movement of the oil inlet pipeline 410, prevent it from colliding with other components inside the fuel tank due to vibration, thereby avoiding the generation of additional noise, and also ensuring that the oil inlet pipeline 410 always maintains the correct position, ensuring that the fuel is smoothly delivered to the oil distributor 400 for uniform distribution. A number of pipe clamps 280 are arranged on the second baffle 220 according to the layout and layout of the oil inlet pipeline 410. Generally, pipe clamps 280 are arranged at the curved parts, branch parts, and positions close to the oil inlet 500 of the fuel tank and the oil distributor 400 to better fix the pipeline and prevent it from displacing at these components.

[0058] In some examples, during the operation of the fuel tank, the pipe clamp 280 tightly fixes the oil inlet pipeline 410, ensuring the stable delivery of fuel from the oil inlet 500 of the fuel tank to the oil distributor 400, reducing the noise generated by pipeline vibration and collision, and optimizing the internal layout of the fuel tank. While the hollow support column 300 reduces the weight of the entire noise reduction structure under the premise of ensuring the stable support of the anti-wave plate 200, achieving the lightweight of the vehicle, and providing space for the functional expansion of the fuel tank.

[0059] It should be noted that the above examples are only used to illustrate the technical solutions of the present disclosure and are not limiting. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, and all should be covered in the scope of the claims of the present disclosure.

Claims

1. A flat high-pressure plastic fuel tank noise reduction structure installed inside a fuel tank (100) for reducing noise generated during oil sloshing inside the fuel tank (100), characterized by, The application relates to a flat high-pressure plastic fuel tank noise reduction structure. The flat high-pressure plastic fuel tank noise reduction structure comprises a wave plate (200) and a support column (300). The wave plate (200) comprises a first baffle (210) and a second baffle (220).

2. The flat high-pressure plastic fuel tank noise reduction structure according to claim 1, characterized by The flat high-pressure plastic fuel tank noise reduction structure further comprises a fixing seat (230) and a connecting block (240). The fixing seat (230) is cylindrical, and the connecting block (240) has a plurality of groups of connecting blocks (240) which are arranged on the fixing seat (230) at equal intervals in a circle and concentrically. The flat high-pressure plastic fuel tank noise reduction structure further comprises a support rib plate (250).

3. The flat high-pressure plastic fuel tank noise reduction structure according to claim 2, characterized by The wave plate (200) has a plurality of avoiding grooves (260), the support column (300) is detachably arranged on the wave plate (200), and the flat high-pressure plastic fuel tank noise reduction structure further comprises a mounting plate (270). The support column (300) has a plurality of slot holes (310), and the mounting plate further comprises a plug (241). The plug (241) is configured to be arranged on the mounting plate (270) and to pass through the slot hole (310) after the support column (300) is mounted, and the plug (241) is used for fixing the support column (300).

4. The flat high-pressure plastic fuel tank noise reduction structure according to claim 3, characterized by The plug (241) is provided with a plurality of elastic clamping portions (242) away from the mounting plate (270), and the elastic clamping portions are used for clamping the slot hole (310).

5. The flat high-pressure plastic fuel tank noise reduction structure according to claim 2, characterized by ​ ​ 6. The noise reduction structure for a flat high-pressure plastic fuel tank according to claim 1, characterized by ​ ​ 7. The flat high-pressure plastic fuel tank noise reduction structure according to claim 6, characterized by ​ ​ 8. The noise reduction structure for a flat high-pressure plastic fuel tank according to claim 2, characterized by The flat high-pressure plastic fuel tank noise reduction structure further comprises: The oil distributor (400) and the pipe clamp (280) are provided on the second baffle (220), and the pipe clamp (280) is used for fixing the oil inlet pipeline (410) connected with the oil distributor (400) and the oil inlet (500) of the oil tank (100).

9. The flat high-pressure plastic fuel tank noise reduction structure according to claim 1, characterized by The support column (300) is a hollow structure.

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