CN214741736U - Silencing element for automobile fuel desorption system - Google Patents
Silencing element for automobile fuel desorption system Download PDFInfo
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- CN214741736U CN214741736U CN202023176983.4U CN202023176983U CN214741736U CN 214741736 U CN214741736 U CN 214741736U CN 202023176983 U CN202023176983 U CN 202023176983U CN 214741736 U CN214741736 U CN 214741736U
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Abstract
The invention discloses a silencing element for an automobile fuel desorption system, which comprises a first cavity structure and a second cavity structure which are axially and oppositely connected, wherein the axial outer end face of the first cavity structure is provided with a first connecting structure, the axial outer end face of the second cavity structure is provided with a second connecting structure, the first connecting structure is arranged by deviating from the central axis of the first cavity structure and/or the second connecting structure is arranged by deviating from the central axis of the second cavity structure, so that when the first cavity structure and the second cavity structure are oppositely connected, the central lines of the first connecting structure and the second connecting structure can be selectively arranged to be not on the same straight line or on the same straight line, and thus products with different silencing requirements are formed.
Description
Technical Field
The invention relates to the technical field of automobile silencing, in particular to a silencing element for an automobile fuel desorption system.
Background
With the implementation of the national six regulations, the emission of fuel vapors from automobiles is becoming more and more regulated. Therefore, the automobile manufacturer is required to upgrade the fuel desorption system to meet the requirements of the regulations. Practice has proved that part of the elements replaced in the process often brings disturbing noise to the cockpit. Also disclosed a lot of muffler structures among the prior art, for example the chinese utility model patent that publication number is CN206016909U, its noise eliminator is used in car turbo charger, and for air intake system's silencer, the volume is great relatively, can occupy great inner space, and can not satisfy the demand of making an uproar that falls of wide band noise, because the car of different models adopts different solenoid valves, the noise of different frequency channels can appear. Also, as disclosed in chinese patent publication No. CN106894925A, the multi-chamber combined perforated muffler is also used in the air intake system, and only the theoretical noise reduction effect is considered, and the poor workability is not considered, so that the cost is too high and the muffler is not suitable for the automobile market with a strong price competition.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a silencing element for an automobile fuel desorption system.
The technical effect to be achieved by the invention is realized by the following scheme: the utility model provides a amortization component for car fuel desorption system, includes axially opposite first cavity structure and the second cavity structure of connecting, and wherein the outer terminal surface in the axial of first cavity structure is equipped with first connection structure, and the outer terminal surface in the axial of second cavity structure is equipped with second connection structure, the central axis setting that first connection structure deviates from first cavity structure and/or the central axis setting that second connection structure deviates from second cavity structure.
Preferably, the ratio of the inner cavity sectional area of the first cavity structure to the gas inlet sectional area is 24:1, and the ratio of the inner cavity sectional area of the second cavity structure to the gas outlet sectional area is 30: 1.
Preferably, a first convex circular ring structure extends from one end face of the first cavity structure connected to the second cavity structure, a second convex circular ring structure extends from one end face of the second cavity structure connected to the first cavity structure, and the first convex circular ring structure and the second convex circular ring structure are arranged in an overlapping and matching mode and are used for fixedly connecting the first cavity structure and the second cavity structure.
Preferably, the first convex circular ring structure is formed on the outer side surface of the second convex circular ring structure, so that the color of the first convex circular ring structure is white, and the color of the second convex circular ring structure is black.
Preferably, the axial outer side surfaces of the first cavity structure and the second cavity structure are further respectively provided with a plurality of positioning ribs which are uniformly distributed at intervals.
Preferably, the number of the positioning ribs of the first cavity structure and the second cavity structure is two, and the positioning ribs are arranged symmetrically to a central axis.
Preferably, a plurality of first reinforcing ribs are further arranged between the outer surface of the first cavity structure and the first convex circular ring structure, and a plurality of second reinforcing ribs are further arranged between the outer surface of the second cavity structure and the second convex circular ring structure.
Preferably, the number of the first reinforcing ribs and the number of the second reinforcing ribs are two, the first reinforcing ribs and the second reinforcing ribs are respectively arranged in a central shaft symmetry manner and are arranged in a staggered and evenly distributed manner with the positioning ribs.
Preferably, the first cavity structure is provided with a first injection molding gate near the side of the first connecting structure, and the second cavity structure is provided with a second injection molding gate near the side of the second connecting structure.
The invention has the following advantages:
1. the first connecting structure is arranged to deviate from the central axis of the first cavity structure and/or the second connecting structure is arranged to deviate from the central axis of the second cavity structure, so that when the first cavity structure and the second cavity structure are oppositely connected, the central lines of the first connecting structure and the second connecting structure can be selectively arranged to be different on the same straight line or on the same straight line, and products with different noise reduction requirements are formed;
2. the invention can realize noise silencing with different frequency requirements by simply changing the appearance of the silencing element, meets the automobile silencing target, and simultaneously can form different products by using fewer parts, thereby greatly reducing the waste of resources.
Drawings
FIG. 1 is a schematic perspective view of a silencing element for a fuel desorption system of an automobile according to the present invention;
FIG. 2 is a schematic sectional view of a silencing element for a fuel desorption system of an automobile according to the present invention 1;
FIG. 3 is a schematic cross-sectional view of a silencing element for a fuel desorption system of an automobile according to the present invention shown in FIG. 2;
FIG. 4 is a schematic structural diagram of a first cavity in a silencing element for an automobile fuel desorption system according to the present invention;
fig. 5 is a schematic structural diagram of a second cavity in the silencing element for the automobile fuel desorption system.
Detailed Description
The invention is described in detail below with reference to the drawings, wherein examples of the embodiments are shown in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 5, an embodiment of the present invention provides a silencing element for an automobile fuel desorption system, including a first cavity structure 100 and a second cavity structure 200 that are connected in an axially opposite manner, where an axially outer end surface of the first cavity structure 100 is provided with a first connection structure 300, an axially outer end surface of the second cavity structure 200 is provided with a second connection structure 400, and the first connection structure 300 and the second connection structure 400 are respectively used for being connected to a pipeline in the automobile fuel desorption system. First connection structure 300 and second connection structure 400 can adopt same structure and material or different structure and material, and it is specific according to the selection of pipeline tubular product and decide, for example first connection structure 300 and second connection structure 400 can be barb type bamboo joint structure, the pipeline can be the nylon pipe, and it is convenient to peg graft. When the silencing element is connected, gas flows along the axial direction of the first cavity structure 100 and the second cavity structure 200, the first connecting structure 300 is used for air inlet, and the second connecting structure 400 is used for air outlet, so that the silencing and noise reduction effects on an automobile fuel desorption system are realized.
In the embodiment of the present invention, the first connecting structure 300 is disposed offset from the central axis of the first cavity structure 100 and/or the second connecting structure 400 is disposed offset from the central axis of the second cavity structure 200, so that when the first cavity structure 100 and the second cavity structure 200 are connected in opposite directions, the central lines of the first connecting structure 300 and the second connecting structure 400 may be selectively disposed on different straight lines (as shown in fig. 2) or on the same straight line (as shown in fig. 3), thereby forming products with different sound attenuation requirements. The invention can realize noise silencing with different frequency requirements by simply changing the appearance of the silencing element, meets the automobile silencing target, and simultaneously can form different products by using fewer parts, thereby greatly reducing the waste of resources.
As a further improvement of the embodiment of the present invention, a ratio of an inner cavity sectional area of the first cavity structure 100 to an air inlet sectional area is 24:1, and a ratio of an inner cavity sectional area of the second cavity structure 200 to an air outlet sectional area is 30:1, and compared with the prior art in which the sectional areas of the air inlets and the air outlets are equal, the difference in the sectional areas of the inlets and the outlets is more beneficial to the noise reduction effect. The design of the cross-sectional area ratio can enable the noise reduction effect in a specific frequency range to be better.
In the embodiment of the present invention, the first cavity structure 100 and the second cavity structure 200 are both hollow cylindrical structures, and the axial outer side surfaces of the first cavity structure 100 and the second cavity structure 200 are further respectively provided with a plurality of positioning ribs 500 distributed at even intervals to play a role in positioning and increasing strength, and preferably, two positioning ribs 500 of the first cavity structure 100 and the second cavity structure 200 are respectively arranged in a central axis symmetry manner. A first convex circular ring structure 110 extends from one end face of the first cavity structure 100 connected to the second cavity structure 200, a second convex circular ring structure 210 extends from one end face of the second cavity structure 200 connected to the first cavity structure 100, and the first convex circular ring structure 110 and the second convex circular ring structure 210 are overlapped and matched to be fixedly connected with the first cavity structure 100 and the second cavity structure 200. Preferably, the first outward convex circular ring structure 110 is formed on the outer side surface of the second outward convex circular ring structure 210, the first outward convex circular ring structure 110 is preferably white, the second outward convex circular ring structure 210 is preferably black, the first cavity structure 100 and the second cavity structure 200 can be effectively distinguished, and the white first outward convex circular ring structure 110 is outside, which is more favorable for laser transmission during laser welding.
The first cavity structure 100 and the second cavity structure 200 are detachably connected or non-detachably connected, wherein the detachable connection comprises but is not limited to a rotary friction connection, a buckle connection and the like, the non-detachable connection comprises but is not limited to a laser welding and the like, preferably the laser welding, the structure is reliable, the efficiency is high, the cleanliness of the noise reduction element can be ensured, and the problems that the cleanliness of a pipeline is affected by welding slag generated by the rotary welding or the ultrasonic welding and other elements on an automobile are damaged are avoided.
A plurality of first reinforcing ribs 120 are further disposed between the outer surface of the first cavity structure 100 and the first convex circular ring structure 110, and a plurality of second reinforcing ribs 220 are further disposed between the outer surface of the second cavity structure 200 and the second convex circular ring structure 210, so as to reinforce the fixing force of the first convex circular ring structure 110 and the second convex circular ring structure 210. Preferably, the number of the first reinforcing rib 120 and the second reinforcing rib 220 is two, and the first reinforcing rib and the second reinforcing rib are respectively arranged in a central axis symmetry manner, and are preferably arranged in a staggered and evenly distributed manner with respect to the positioning rib 500.
In the embodiment of the present invention, in order to ensure that the injection molded sound damping element has a good circularity, through simulation optimization of the injection molding process, the first injection molding gate 130 is disposed on the side surface of the first cavity structure 100 close to the first connecting structure 300, and the second injection molding gate 230 is disposed on the side surface of the second cavity structure 200 close to the second connecting structure 400.
The silencing element provided by the embodiment of the invention is made of a high-strength plastic material, and the integral temperature resistance is-40-150 ℃. In order to prevent the cooling shrinkage deformation of the plastic part after injection molding, the cooling time of the noise reduction element in the embodiment of the invention is controlled to be more than 13s during injection molding, so that the perpendicularity between the first connecting structure 300 and the end surface of the first cavity structure 100 and the perpendicularity between the second connecting structure 400 and the end surface of the second cavity structure 200 can be ensured.
By assembling the silencing element in the automobile fuel desorption system, when noise and airflow pass through the cavity, the noise of the air outlet is obviously reduced compared with the noise of the air inlet. When the silencing element is assembled, the clamping equipment can be used for designing the imitated groove to be matched with the first cavity structure 100 and the second cavity structure 200, and the positioning effect can be realized by designing the tools with different rotation angles at different angles. The silencing element provided by the embodiment of the invention can be assembled after being adjusted according to the pipeline trend requirement before leaving a factory.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention, and these modifications or equivalent substitutions cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A silencing element for an automobile fuel desorption system is characterized by comprising a first cavity structure and a second cavity structure which are axially oppositely connected, wherein a first connecting structure is arranged on the outer axial end face of the first cavity structure, a second connecting structure is arranged on the outer axial end face of the second cavity structure, and the first connecting structure is arranged by deviating from the central axis of the first cavity structure and/or the second connecting structure is arranged by deviating from the central axis of the second cavity structure; the ratio of the inner cavity sectional area of the first cavity structure to the air inlet sectional area is 24:1, and the ratio of the inner cavity sectional area of the second cavity structure to the air outlet sectional area is 30: 1.
2. The silencing element for an automobile fuel desorption system as recited in claim 1, wherein the first cavity structure extends to form a first convex circular ring structure towards one end face of the first cavity structure, the second cavity structure extends to form a second convex circular ring structure towards one end face of the first cavity structure, and the first convex circular ring structure and the second convex circular ring structure are arranged in an overlapping and matching mode and used for fixedly connecting the first cavity structure and the second cavity structure.
3. The silencing element for an automobile fuel desorption system as recited in claim 2, wherein the first convex circular ring structure is formed on the outer side surface of the second convex circular ring structure, so that the color of the first convex circular ring structure is white, and the color of the second convex circular ring structure is black.
4. The silencing element for a fuel desorption system of an automobile as claimed in claim 3, wherein the axially outer surfaces of the first cavity structure and the second cavity structure are respectively provided with a plurality of positioning ribs which are uniformly distributed at intervals.
5. The silencing element for an automobile fuel desorption system as recited in claim 4, wherein the two positioning ribs of the first cavity structure and the second cavity structure are respectively arranged symmetrically about a central axis.
6. The silencing element for an automobile fuel desorption system as recited in claim 5, wherein a plurality of first reinforcing ribs are further disposed between the outer surface of the first cavity structure and the first convex circular ring structure, and a plurality of second reinforcing ribs are further disposed between the outer surface of the second cavity structure and the second convex circular ring structure.
7. The silencing element for an automobile fuel desorption system as recited in claim 6, wherein the first reinforcing rib and the second reinforcing rib are two, are symmetrically arranged on the central axis of the first reinforcing rib and are uniformly distributed and staggered with the positioning rib.
8. The noise reduction element for an automobile fuel desorption system as claimed in claim 1, wherein the first cavity structure is provided with a first injection gate near the side of the first connecting structure, and the second cavity structure is provided with a second injection gate near the side of the second connecting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023176983.4U CN214741736U (en) | 2020-12-25 | 2020-12-25 | Silencing element for automobile fuel desorption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023176983.4U CN214741736U (en) | 2020-12-25 | 2020-12-25 | Silencing element for automobile fuel desorption system |
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| Publication Number | Publication Date |
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| CN214741736U true CN214741736U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023176983.4U Active CN214741736U (en) | 2020-12-25 | 2020-12-25 | Silencing element for automobile fuel desorption system |
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| CN (1) | CN214741736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412668A (en) * | 2020-12-25 | 2021-02-26 | 河北亚大汽车塑料制品有限公司 | Silencing element for automobile fuel desorption system |
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2020
- 2020-12-25 CN CN202023176983.4U patent/CN214741736U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412668A (en) * | 2020-12-25 | 2021-02-26 | 河北亚大汽车塑料制品有限公司 | Silencing element for automobile fuel desorption system |
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