Fuel tank with noise reduction function

Abstract

The present invention discloses a fuel tank with a noise reduction function. A fuel tank with a noise reduction function includes: a fuel tank shell, which forms a rectangular cavity for containing fuel therein; a first noise reduction component, which is fixed at the corner area where the side wall and the top wall of the rectangular cavity meet; wherein: a liquid separation grid arranged in a matrix is constructed on the inner side of the first noise reduction component, and the liquid separation grid is used for separating and weakening the fuel oscillating to the corner area. By adding the first noise reduction component, the noise generated by the impact of the fuel on the corner area inside the fuel tank can be effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and particularly to a fuel tank with a noise reduction function. Background Art

[0002] It is easy to understand that when a moving vehicle suddenly brakes, accelerates, or travels on a bumpy road surface, the liquid fuel in its fuel tank will oscillate due to inertia, thus generating noise. This noise may be transmitted to the cab, giving the driver or passengers a poor riding experience.

[0003] In the prior art, in order to reduce the noise generated by the oscillation, the following solution is adopted:

[0004] A baffle is provided in the middle or the middle and lower part of the fuel tank. The baffle is arranged horizontally or obliquely, and is used to absorb the kinetic energy existing in the fuel oscillation, thereby reducing the amplitude of the oscillation, and thus achieving the purpose of reducing noise.

[0005] However, the noise generated in the fuel tank also comes from the noise generated by the fuel hitting the upper part of the side wall and the top corners of the fuel tank. In the prior art, there has not been a means to reduce the noise in this area. Summary of the Invention

[0006] In view of the above technical problems existing in the prior art, an embodiment of the present invention provides a fuel tank with a noise reduction function.

[0007] To solve the above technical problems, the technical solution adopted in the embodiment of the present invention is:

[0008] A fuel tank with a noise reduction function, comprising:

[0009] A fuel tank shell, in which a rectangular cavity for accommodating fuel is formed;

[0010] A first noise reduction component, which is fixed in the corner area where the side wall and the top wall of the rectangular cavity meet; wherein:

[0011] A liquid separation grid arranged in a matrix is constructed on the inner side of the first noise reduction component, and the liquid separation grid is used for separating and weakening the fuel oscillating to the corner area.

[0012] Preferably, the liquid separation grid is surrounded by horizontal plates and vertical plates that intersect each other; each row of the liquid separation grids is connected by through holes opened on the vertical plates, so that the fuel entering the liquid separation grid flows out from both sides of the first noise reduction component horizontally through the through holes.

[0013] Preferably, the fuel tank further includes a second noise reduction component, and the second noise reduction component is arranged on the side wall of the rectangular cavity and is aligned with the lower end of the first noise reduction component; wherein:

[0014] A plurality of columns of damping units are arranged inside the second noise reduction component; each column of damping units includes inverted horn structures arranged vertically in sequence, and each inverted horn structure is formed by two symmetrically arranged inclined plates; a diversion channel is formed between two vertically adjacent inverted horn structures;

[0015] Between two adjacent columns of the damping units, a plurality of positive horn structures are formed by the corresponding inclined plates, and the plurality of positive horn structures constitute a diversion unit.

[0016] Preferably, the upper port of the inverted horn structure located above is smaller than the upper port of the inverted horn structure located below.

[0017] Preferably, the upper port of the inverted horn structure located below extends into the lower port of the inverted horn structure located above.

[0018] Preferably, the first noise reduction component includes a first bottom plate and a first attaching plate attached to the rear surface of the first bottom plate, convex columns are provided on the back surface of the first attaching plate, and the liquid separation grid is formed inside the first bottom plate.

[0019] Preferably, the second noise reduction component includes a second bottom plate and a second attaching plate attached to the rear surface of the second bottom plate, and convex columns are provided on the back surface of the second attaching plate.

[0020] Preferably, the end face of the convex column is provided with criss-cross grooves for accommodating the colloid.

[0021] Preferably, both the first noise reduction component and the second noise reduction component are integrally injection-molded from a plastic material.

[0022] Preferably, the first noise reduction components are respectively arranged in the four corner regions of the rectangular cavity.

[0023] Compared with the prior art, the beneficial effects of the fuel tank with a noise reduction function disclosed by the present invention are as follows:

[0024] 1. By adding the first noise reduction component, the noise generated by the impact of fuel on the inner corner regions of the fuel tank can be effectively reduced.

[0025] 2. By adding the second noise reduction component, the noise generated by the impact of fuel on the side wall of the fuel tank can be reduced.

[0026] The overview of various implementations or examples of the technologies described in the present invention is not a full disclosure of the entire scope of the disclosed technologies or all features. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In the accompanying drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The same reference numerals with alphabetic suffixes or different alphabetic suffixes may represent different instances of similar components. The drawings generally illustrate various embodiments by way of example and not limitation, and are used in conjunction with the description and the claims to explain the embodiments of the invention. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be an exhaustive or exclusive embodiment of the device or method.

[0028] Figure 1 Cross-sectional view of a fuel tank with noise reduction function provided for an embodiment of the present invention (containing a relatively large amount of fuel).

[0029] Figure 2 Schematic perspective view of a first noise reduction component in a fuel tank with noise reduction function provided for an embodiment of the present invention.

[0030] Figure 3 is Figure 1 Enlarged view of a partial A.

[0031] Figure 4 is Figure 1 View in the direction B of

[0032] Figure 5 Cross-sectional view of a fuel tank with noise reduction function provided for an embodiment of the present invention (containing a relatively small amount of fuel).

[0033] Figure 6 Front view of a second noise reduction component in a fuel tank with noise reduction function provided for an embodiment of the present invention.

[0034] Reference numerals:

[0035] 10 - fuel tank shell; 11 - rectangular cavity; 20 - first noise reduction component; 21 - vertical plate; 22 - horizontal plate; 23 - liquid separation grid; 24 - through hole; 25 - first bottom plate; 26 - first attaching plate; 30 - second noise reduction component; 31 - damping unit; 311 - inverted horn structure; 32 - diversion unit; 321 - positive horn structure; 33 - inclined plate; 34 - diversion channel; 35 - second bottom plate; 36 - second attaching plate; 40 - convex post. Detailed description of the invention

[0036] Unless otherwise defined, the technical terms or scientific terms used in this invention shall have the ordinary meanings understood by those of ordinary skill in the field to which this invention pertains. The "first", "second" and similar terms used in this invention do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0037] To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted in the present invention.

[0038] As Figure 1 shown, an embodiment of the present invention discloses a fuel tank, which includes: a tank shell 10, a first noise reduction component 20, and a second noise reduction component 30.

[0039] The tank shell 10 is generally in a cubic structure, and a rectangular cavity 11 with a rectangular cross-section is formed inside the tank shell 10. The tank shell 10 can be formed by stamping and welding a metal plate, or can also be formed by stamping or injection molding of a plastic material. The rectangular cavity 11 is used to hold fuel.

[0040] As Figure 2 and Figure 3 shown, the first noise reduction component 20 is fixed at the corner area where the top wall and the side wall of the rectangular cavity 11 meet. Therefore, the outer shape of the first noise reduction component 20 is configured as an arc structure that can be attached to the corner area of the rectangular cavity 11. Preferably, the first noise reduction component 20 is fixed at the four corner areas of the rectangular cavity 11 (or the fuel shell).

[0041] The first noise reduction component 20 specifically includes: a first bottom plate 25, a first attaching plate 26, and a liquid separation grid 23 arranged in a matrix. The first attaching plate 26 is fixed on the outer side of the first bottom plate 25. The first attaching plate 26 can be made of a plastic material or a fuel-resistant rubber. A plurality of protruding columns 40 arranged in a matrix are formed on the back of the first attaching plate 26, and a colloid is provided on the protruding columns 40 so that the first noise reduction component 20 is adhered to the corner area through the plurality of protruding columns 40 and the colloid. Preferably, the end surface of the protruding column 40 is configured with criss-cross grooves for accommodating more colloid, thereby making the adhesion more firm.

[0042] The liquid separation grid 23 arranged in a matrix is located inside the first bottom plate 25, that is, facing the rectangular cavity 11. The liquid separation grid 23 arranged in a matrix is surrounded by vertically and horizontally intersecting vertical plates 21 and horizontal plates 22. Preferably, the horizontal plate 22, the vertical plate 21 and the first bottom plate 25 are integrally formed. Through holes 24 are formed in the vertical plates 21 corresponding to the liquid separation grids 23 in each row, which enables the liquid separation grids 23 in each row to communicate horizontally. In this way, the fuel entering the liquid separation grid 23 can flow horizontally through the through holes 24 and finally can flow out from both sides in the horizontal direction of the first noise reduction component 20.

[0043] As Figure 1 , 4 to Figure 6 shown, the second noise reduction component 30 is fixed on the side wall of the rectangular cavity 11 and is located below the first noise reduction component 20, and the upper end of the second noise reduction component 30 is butted against the lower end of the first noise reduction component 20. The second noise reduction component 30 includes a second bottom plate 35, a second bonding plate 36 and an inclined plate 33. The structure and function of the second bonding plate 36 are the same as those of the first bonding plate 26, that is, the second bonding plate 36 is fixed on the outside of the second bottom plate 35. The second bonding plate 36 can be made of plastic material or oil-resistant rubber. A plurality of convex columns 40 arranged in a matrix are constructed on the back of the second bonding plate 36, and a colloid is arranged on the convex columns 40 so that the second noise reduction component 30 is bonded to the corner area through the plurality of convex columns 40 and the colloid. Preferably, the end of the convex column 40 is constructed with vertically and horizontally intersecting grooves for accommodating more colloid, so that the bonding is more firm.

[0044] The inclined plate 33 is formed inside the second bottom plate 35 and is arranged in the following manner:

[0045] The inclined plates 33 arranged in a rectangle define a plurality of damping units 31 and a plurality of diversion units 32, and the damping units 31 and the diversion units 32 are arranged alternately with each other. Each column of damping units 31 includes a plurality of inverted horn structures 311 arranged vertically, and the inverted horn structures 311 are surrounded by symmetrically arranged inclined plates 33. Accordingly, the diversion units 32 have a plurality of positive horn structures 321 arranged vertically and surrounded by the inclined plates 33. And in each column of damping units 31, the upper port part of the inverted horn structure 311 located below enters the lower port of the inverted horn structure 311 located above, and a diversion channel 34 is defined by the upper and lower inclined plates 33.

[0046] It should be noted that: as Figure 6 shown, the so-called inverted horn structure 311 is a horn structure with the opening of the lower port larger than the opening of the upper port, and the so-called positive horn structure 321 is a horn structure with the opening of the upper port larger than the opening of the lower port.

[0047] Preferably, the opening of the upper port of the inverted horn structure 311 located above is smaller than the opening of the upper port of the inverted horn structure 311 located below.

[0048] The following describes the role of the first noise reduction component 20 and the second noise reduction component 30 in reducing the noise of the fuel tank.

[0049] like Figure 1 As shown, if there is more fuel in the rectangular cavity 11 of the fuel tank, the fuel has a smaller impact on the side wall of the rectangular cavity 11. At this time, the fuel mainly impacts the top corner area of the rectangular cavity 11. However, the liquid separation grid 23 in the first noise reduction component 20 can separate the fuel rushing towards the top corner area to weaken the impact force of the fuel, thereby achieving the purpose of noise reduction.

[0050] like Figure 6 As shown, if there is less fuel in the rectangular cavity 11 in the fuel tank, the oscillating fuel will have a greater impact on the side wall of the rectangular cavity 11. Based on the oscillation characteristics, the fuel will rise up along the side wall at an angle. At this time, the fuel is divided into multiple columns by the inclined plate 33 and enters the damping unit 31 from bottom to top. The inverted horn structure 311 in the damping unit 31 buffers the fuel step by step, thereby weakening the impact force of the fuel, thereby achieving the purpose of noise reduction. At the same time, part of the fuel flowing out from the upper port of the inverted horn structure 311 enters the adjacent guide unit 32 through the guide channel 34, and then falls under the action of gravity. During the falling process, the positive horn structure 321 throttles the fuel, thereby reducing the noise to a certain extent.

[0051] The advantages of the fuel tank provided by the present invention are:

[0052] 1. The noise generated by the impact of fuel on the top corner area inside the fuel tank can be effectively reduced by adding the first noise reduction component 20.

[0053] 2. The noise generated by the impact of fuel on the side wall of the fuel tank can be reduced by adding the second noise reduction component 30.

[0054] In addition, although exemplary embodiments have been described in the present invention, the scope includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language adopted in the claims, and are not limited to the examples described in this specification or during the implementation of this application, and their examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0055] The foregoing description is intended to be illustrative and not restrictive. For example, the above examples (or one or more aspects thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. Additionally, in the above detailed description, various features may be grouped together to simplify the present invention. This should not be construed as an intention that any feature disclosed that is not claimed is necessary for any claim. On the contrary, the subject matter of the present invention may comprise less than all of the features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description by way of example or illustration, where each claim stands on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the present invention should be determined with reference to the appended claims and the full scope of equivalents to which those claims are entitled.

[0056] The above embodiments are only exemplary embodiments of the present invention and are not used to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions within the essence and protection scope of the present invention, and such modifications or equivalent substitutions should also be regarded as falling within the protection scope of the present invention.

Claims

1. A fuel tank with a noise reduction function, characterized in that, include: A fuel tank shell, in which a rectangular cavity for containing fuel is formed; The first noise reduction component is fixed at the top corner area where the side wall and the top wall of the rectangular cavity meet; wherein: A matrix-arranged liquid separation grid is constructed on the inner side of the first noise reduction component, and the liquid separation grid is used to separate and weaken the fuel that oscillates to the top corner area; The liquid separation grid is surrounded by crisscrossed horizontal plates and vertical plates; each row of the liquid separation grids is connected by through holes opened on the vertical plates, so that the fuel entering the liquid separation grid flows out from both sides of the first noise reduction component through the through holes horizontally; The fuel tank further includes a second noise reduction component, which is disposed on the side wall of the rectangular cavity and is aligned with the lower end of the first noise reduction component; wherein: A plurality of rows of damping units are arranged inside the second noise reduction component; each row of the damping units comprises inverted horn structures arranged vertically in sequence, each inverted horn structure is surrounded by two symmetrically arranged inclined plates; a guide channel is formed between two vertically adjacent inverted horn structures; Corresponding inclined plates are used between two adjacent rows of the damping units to form a plurality of positive horn structures, and the plurality of positive horn structures constitute a flow guide unit.

2. The fuel tank with noise reduction function according to claim 1, characterized in that, The upper port of the inverted horn structure located above is smaller than the upper port of the inverted horn structure located below.

3. The fuel tank with a noise reduction function according to claim 1, characterized in that, The upper port of the inverted horn structure located at the bottom extends into the lower port of the inverted horn structure located at the top.

4. The fuel tank with noise reduction function according to claim 1, characterized in that, The first noise reduction component includes a first bottom plate and a first pasting plate attached to the rear surface of the first bottom plate, a convex column is arranged on the back side of the first pasting plate, and the liquid separation grid is formed on the inner side of the first bottom plate.

5. The fuel tank with a noise reduction function according to claim 1, characterized in that, The second noise reduction component includes a second bottom plate and a second pasting plate attached to the rear surface of the second bottom plate, and a convex column is arranged on the back surface of the second pasting plate.

6. The fuel tank with a noise reduction function according to claim 4, characterized in that, The end surface of the convex column is provided with crisscross grooves, and the grooves are used to accommodate colloid.

7. The fuel tank with a noise reduction function according to claim 1, characterized in that, The first noise reduction component and the second noise reduction component are both integrally injection-molded from a plastic material.

8. The fuel tank with a noise reduction function according to claim 1, characterized in that, The first noise reduction components are respectively arranged at four vertex areas of the rectangular cavity.

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