CN202520401U

CN202520401U - Automobile silencer

Info

Publication number: CN202520401U
Application number: CN2012201300404U
Authority: CN
Inventors: 黄明守
Original assignee: SANHE SAMWOO AUTOMOBILE PARTS Co Ltd
Current assignee: SANHE SAMWOO AUTOMOBILE PARTS Co Ltd
Priority date: 2012-03-31
Filing date: 2012-03-31
Publication date: 2012-11-07
Anticipated expiration: 2022-03-31

Abstract

The utility model discloses an automobile silencer, comprising an inner tube (1) and a shell (2) sleeved outside the inner tube (1). The both ends of the inner tube (1) extend out from the shell (2); and a through hole is arranged on the side wall of the inner tube (1). The automobile silencer further comprises a glass fiber material (3) for silencing, wherein the glass fiber material is located between the inner tube (1) and the shell (2). The glass fiber material is arranged between the inner tube and the shell of the automobile silencer, so that not only can the silencing effect be effectively improved but also the structure of the automobile silencer can be simplified due to the glass fiber material. Therefore, the automobile silencer provided by the utility model has positive meanings.

Description

Sound eliminator for automobile

Technical field

The utility model relates to the vehicle component field, particularly, relates to a kind of sound eliminator for automobile.

Background technique

Sound eliminator for automobile is one of requisite component in the vehicle day-to-day operation, and for example, it can link to each other with the outlet pipe of vehicle motor, to play the effect of noise reduction.Existing sound eliminator for automobile adopts complicated silencer usually, a plurality of acoustical panels that for example are provided with etc. with various structural types, however it can not effectively abate the noise.Therefore, a kind of sound eliminator for automobile simple in structure and good muffling effect has advantages of high practicability.In addition,, in batch process, reduce the weld job between the associated components, can produce bigger economic value and promote its manufacturing efficiency because the use amount of sound eliminator for automobile is huge.In addition; Because the variation during in working order with off working state of the temperature of sound eliminator for automobile is big; The interior pipe of sound eliminator for automobile can deform under the effect of expanding with heat and contract with cold; Thereby the problem that noise sources such as pipe and waste pipe interfere or damage in causing, therefore, the practicability and the Economy that address this problem promoting sound eliminator for automobile have positive effect.

The model utility content

The purpose of the utility model provides a kind of sound eliminator for automobile, this sound eliminator for automobile simple in structure, good muffling effect.

To achieve these goals; The utility model provides a kind of sound eliminator for automobile, and this sound eliminator for automobile comprises interior pipe and be set in the outside housing of pipe in this that said housing is stretched out at two ends of said interior pipe; And the sidewall of managing in this is provided with through hole; Wherein, said sound eliminator for automobile also comprises the fiber glass material that is used for noise reduction, this fiber glass material in said, manage and said housing between.

Preferably, said fiber glass material is the expanded glass continuous fiber that is filled between said interior pipe and the said housing.

Preferably, said housing comprises housing body, and these housing body two ends form the diminishing closing in of size portion, and the end of this closing in portion is provided with the housing opening that supplies said interior pipe to pass.

Preferably, said housing body is a round column structure, and the internal diameter of this round column structure is greater than 80mm, the conical structure that said closing in portion forms for the end through this round column structure of spinning.

Preferably, said housing body is a round column structure, and the internal diameter of this round column structure is equal to or less than 80mm, the conical structure of said closing in portion for forming through the end of pushing this round column structure.

Preferably, tube body and the expansion mouth that is formed on tube body end in this in said interior pipe comprises, said through hole is arranged on the said interior tube body, and the internal diameter of said expansion mouth is greater than tube body in said.

Preferably, be fixed with on the inwall of said expansion mouth and the said interior different transition piece of material of managing.

Preferably, said transition piece is the Stainless Steel Wire packing ring.

Pass through technique scheme; Owing to be provided with fiber glass material between the interior pipe of sound eliminator for automobile and the housing; Therefore through this fiber glass material; Promptly can effectively promote the structure that erasure effect can also be simplified sound eliminator for automobile, complicated silencer need be set, the sound eliminator for automobile that makes the utility model provide has positive effect.

Other feature and advantage of the utility model will partly specify in embodiment subsequently.

Description of drawings

Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of specification, is used to explain the utility model with following embodiment, but does not constitute the restriction to the utility model.In the accompanying drawings:

Fig. 1 is that the sound eliminator for automobile that the utility model first mode of execution provides decomposes the structural representation of managing in the back;

Fig. 2 is the structural representation that the sound eliminator for automobile that provides of the utility model first mode of execution decomposes rear case;

Fig. 3 is the structural representation after the sound eliminator for automobile assembling that provides of the utility model first mode of execution;

Fig. 4 is the structural representation after the sound eliminator for automobile assembling that provides of the utility model second mode of execution;

Fig. 5 is the structural representation of the interior pipe assembly of the sound eliminator for automobile that provides of the utility model the 3rd mode of execution.

Description of reference numerals

Pipe 2 housings in 1

3 fiber glass materials, 4 transition pieces

5 end caps, 6 pipe boxes

Tube body in 11 through holes 12

13 expansion mouths, 14 jointings

21 outer tube bodies, 22 closing in portions

23 housing openings

Embodiment

The utility model is described for ease, below is only combined Fig. 1 to Fig. 5 that three preferred implementations of the utility model are elaborated.Should be understood that three preferred implementations described herein only are used for explanation and explain the utility model, are not limited to the utility model.

In the utility model; Do not doing under the situation of opposite explanation; The noun of locality that uses is defined as benchmark with page shown in the drawings usually like " upper and lower, about, inside and outside ", and these nouns of locality only are used to explain the utility model, are not limited to the utility model.

Extremely shown in Figure 4 like Fig. 1; The utility model provides a kind of sound eliminator for automobile, and this sound eliminator for automobile comprises interior pipe 1 and the housing 2 that is set in pipe 1 outside in this, and said housing 2 is stretched out at the two ends of interior pipe 1; Be positioned at the pipe fitting of sound eliminator for automobile upstream and downstream, for example waste pipe etc. with connection.And sidewall of pipe 1 is provided with through hole 11 (Fig. 1 is visible) in this; Can from interior pipe, be passed between interior pipe 1 and the housing 2 so that be mingled with the air-flow of noise; Wherein, the sound eliminator for automobile that the utility model provides also comprises the fiber glass material 3 between pipe 1 and the housing 2, the silencer in promptly being arranged on by the fiber glass material conduct between pipe 1 and the housing 2; Wherein preferably; In the utility model Fig. 3 and first and second mode of executions shown in Figure 4, this fiber glass material 3 is the expanded glass continuous fiber between pipe 1 and the housing 2 in being filled in, and promptly passes through the glass continuous fiber after the expanding processing.

Wherein, glass fibre is a kind of Inorganic Non-metallic Materials of excellent performance, and good insulating, heat resistance is strong, corrosion resistance good, and mechanical strength is high.Wherein, glass fibre can be divided into glass continuous fiber (being also referred to as long glass fiber), glass staple fibre and glass wool.The utility model is used for sound eliminator for automobile with fiber glass material; Can effectively eliminate the noise that is mingled with in the air-flow, promote the erasure effect of sound eliminator for automobile, especially use through the glass continuous fiber after expanded; Can absorb noise more effectively, promote erasure effect.In addition, owing to adopt the filling glass continuous fiber to carry out noise reduction, do not need between interior pipe 1 and housing 2, to process separately complicated silencer such as acoustic board, the sound eliminator for automobile that makes the utility model provide is simple in structure, and is practical.

In addition; The glass continuous fiber of the employing in above-mentioned first, second mode of execution of the utility model; In following the 3rd mode of execution shown in Figure 5; The interior pipe assembly that the utility model provides can also adopt the hot pressing glass wool through being all glass fibre to carry out noise reduction, can obtain good erasure effect equally.

In addition; In first mode of execution as shown in Figures 2 and 3, in order to form the noise reduction cavity of baffler sealing, housing 2 comprises housing body 21; These housing body 21 two ends form the diminishing closing in of size portion 22, the housing opening 23 that pipe 1 passed in the end of this closing in portion 22 was provided with and supplies.Therefore, through interior pipe 1 and housing opening 23 are adopted mode sealing and fixing such as welding, the noise reduction cavity good seal that forms between pipe 1 and the housing 2 in can making is effectively avoided noise leakage.Wherein, because the shutoff plate for example welds forming the operation of seal chamber separately for being formed on housing body 21 ends, having reduced in closing in portion 22.Therefore, in the batch process of sound eliminator for automobile, can significantly promote manufacturing efficiency, and generation is worth than large economy.

Wherein, The mode of execution of the formation of the closing in portion 22 of the utility model middle shell 2 has multiple; Can select concrete processing technology and equipment according to the size of housing body 21, wherein housing body 21 is preferably round column structure, when the internal diameter of this round column structure during greater than 80mm; For example diameter is the steel pipe of 120mm, and closing in portion 22 wherein can form conical structure through the end of this round column structure of spinning." spinning " of saying design here is called the metal spinning moulding process for a kind of metal forming technology.Closing in portion 22 moulding of the utility model can adopt spinning machine common in related domain to realize.In concrete moulding engineering; Through one side rotary shell main body 21; By the spinning cutter exerted pressure in the end of housing body 21 on one side; And through the relative movement of housing body 21 and spinning cutter, the force bearing point that can make this end by put line again by line to face, thereby make the metallic material of housing body 21 ends form conical structure.In order to realize above-mentioned spinning, the metallic material that housing 2 uses is required to be has plastic deformation or mobile performance.Closing in portion through this spinning forms is comparatively smooth, and the extruding that metallic material can not take place is overlapping, is applicable to larger-diameter pipe fitting closing in work.

In addition, when the internal diameter of this round column structure is equal to or less than 80mm, then need not use above-mentioned spinning process, its closing in portion 22 can be the conical structure that forms through the end of pushing this round column structure.Can realize through machine for shrinking common in related domain particularly,, can obtain the good closing in portion 22 of quality and outward appearance equally because caliber is less.In concrete forming process; Housing body 21 gets into the texturing zone at responsive to axial force, in the texturing zone, by mould the end of housing body 21 is applied extruding force, thereby makes this end produce the reducing plastic deformation that shrink tangential; Get into the stable region then, the final end diameter of dwindling that forms.In reality processing, can also adopt other various processing techniquies well known in the art, the utility model does not limit this.

Except the mode of above-mentioned formation closing in portion 22; In second mode of execution as shown in Figure 4; The housing 2 of the silencer for automobile that the utility model provides comprises housing body 21 and the end cap 5 that is installed in these housing body 21 two ends, the end cap opening that pipe 1 passed in the center of this end cap 5 was provided with and supplies.Wherein, in assembling, after pipe 1 and the fiber glass material 3, can after the end cap opening sealing and fixing with interior pipe 1 and end cap 5, can form the noise reduction cavity of sealing equally again with mode sealing and fixing such as end cap 5 welding or interference fit at the two ends of housing body 21.Wherein the utility model does not limit the structure of this end cap 5.

Except that above-mentioned, the mutual interference problem that distortion is brought because parts expand with heat and contract with cold has also been described in background technique, pipe 1 causes the problem of interference in specifically being mainly reflected in to noise sources such as outlet pipes because of the distortion of temperature variation.In order effectively to address this problem; In the Fig. 1 and first mode of execution shown in Figure 3; Preferably; Tube body 12 and the expansion mouth 13 that is formed on tube body 12 ends in this in said interior pipe 1 comprises, through hole 11 are arranged on the said interior tube body 12, and the internal diameter of said expansion mouth 13 is greater than tube body 12 in said.Wherein, expansion mouth 13 can be realized through the common flaring machine in related domain.Therefore, through this expansion mouth 13, when interior pipe 1 is connected with noise sources such as outlet pipes; Can between outlet pipe and interior pipe 1, transition piece 4 be set; For example preferably, as shown in Figure 3, can transition piece 4 be fixed on the inwall of expansion mouth 13 and (only schematically show the transition piece that is positioned at an end).Wherein, The material of pipe in the material of this transition piece 4 is different from; Therefore in the process of temperature variation; Through the difference that different materials the had deformation rate of expanding with heat and contract with cold, can bring the transition effect of distortion with outlet pipe for interior pipe 1, thereby effectively solve between the parts because the mutual extrusion that distortion is brought or the problem of damage.

Wherein, this transition piece 4 can adopt intensity height, heat-resisting good Stainless Steel Wire packing ring.Therefore the pipe tube material that uses can play above-mentioned transitional function in the stainless steel material of this Stainless Steel Wire packing ring was different from the utility model mode of execution in temperature changing process.Those skilled in the art can select for use other can realize the transition piece of above-mentioned fade function according to the material of interior pipe, and the utility model does not limit this.

Except aforesaid way; Can also accomplish above-mentioned purpose with other mode of executions; In second mode of execution of the utility model; In pipe 1 comprise in jointing 14 (being preferably the Stainless Steel Wire packing ring) on tube body 12 and at least one end that is arranged on tube body 12 in this, this jointing 14 through with pipe 1 in the different transition piece 4 of interior pipe 1 material is fixed on.That is, above-mentioned transition piece 14 is arranged on the end of jointing 14 and interior tube body 12, and passes through welding and sealing and fixing through noise sources such as this jointing 14 and outlet pipes.Therefore, can solve the interference problem that is caused by interior pipe distortion in this mode of execution equally to noise sources such as outlet pipes.In addition, those skilled in the art can carry out various designs to the structure and material of jointing 14, as long as can accomplish the purpose of the utility model, the utility model does not limit this.

Wherein particularly; In second mode of execution as shown in Figure 4; One end of interior tube body 12 is provided with above-mentioned jointing 14, and the other end forms the expansion mouth 13 in first mode of execution, and this expansion mouth 13 can be according to the fixing above-mentioned transition piece of the mode in first mode of execution.Wherein, jointing 14 and expansion mouth 13 respectively with the end cap opening sealing and fixing of end cap 5.In other NM mode of executions, also can above-mentioned jointing all be set at the two ends of interior tube body 12, the utility model does not limit this.

Except like Fig. 1 to first, second mode of execution shown in Figure 4, sell separately for ease, reduce user's purchase cost; In the utility model as shown in Figure 5 the 3rd mode of execution; The sound eliminator for automobile that is provided comprise a kind of in the pipe assembly, pipe 1 and fiber glass material 3 in pipe assembly comprises in this, the sidewall of interior pipe 1 are provided with through hole 11 (can referring to Fig. 1); Fiber glass material 3 is pressed on this through hole 11 outsides; Wherein preferably, this fiber glass material 3 promptly passes through hot-forming glass wool for the hot pressing glass wool in pipe 1 outside in being pressed on.

In technique scheme; Owing to compressed the hot pressing glass wool on the interior pipe assembly; Can sell separately pipe assembly in this, and the user only needs in this pipe assembly 1 outer tube to process the sound eliminator for automobile of any housing in can assembly cost model utility the 3rd mode of execution voluntarily.Wherein, the glass continuous fiber is all fiber glass material in the glass wool in this mode of execution and first and second mode of executions, and the glass wool that particularly passes through after the hot pressing is better to the assimilation effect of noise.In addition, preferably, in this pipe assembly 1 also comprise be set in fiber glass material 3 outsides and this fiber glass material 3 is pressed in pipe box 6 on the pipe 1.What therefore, the hot pressing glass wool can be more stable is fixed on the interior pipe 1.

In the interior pipe assembly that in the utility model the 3rd mode of execution, provides; Pipe 1 can be provided with technical characteristicss such as through hole 11, expansion mouth 13 and jointing 14 with the interior pipe 1 in first, second mode of execution in it with the same manner; For fear of repetition, do not do too much at this and to give unnecessary details.

To sum up; No matter the hot pressing glass wool in expanded glass continuous fiber in first, second mode of execution or the 3rd mode of execution all can effectively promote the erasure effect of sound eliminator for automobile; And make that corresponding sound eliminator for automobile is simple in structure, have advantages of high practicability and promotional value.

More than combine accompanying drawing to describe preferred three mode of executions of the utility model in detail; But the utility model is not limited to the detail in above-mentioned each mode of execution, in the technical conceive scope of the utility model; Can carry out multiple simple variant to the technological scheme of the utility model; For example, the distortion of the through hole set-up mode on the interior pipe 1, these simple variant all belong to the protection domain of the utility model.

Need to prove in addition; Each concrete technical characteristics described in above-mentioned embodiment; Under reconcilable situation, can make up through any suitable manner, for example the jointing in second mode of execution is used in the first or the 3rd mode of execution; For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.

In addition, also can carry out combination in any between the various mode of execution of the utility model, as long as its thought without prejudice to the utility model, it should be regarded as content disclosed in the utility model equally.

Claims

1. sound eliminator for automobile; This sound eliminator for automobile comprises interior pipe (1) and is set in the outside housing (2) of pipe (1) in this; Said housing (2) is stretched out at the two ends of pipe (1) in said, and sidewall of pipe (1) is provided with through hole (11) in this, it is characterized in that; Said sound eliminator for automobile also comprises the fiber glass material (3) that is used for noise reduction, and this fiber glass material is positioned between said pipe (1) and the said housing (2).

2. sound eliminator for automobile according to claim 1 is characterized in that, said fiber glass material (3) is for being filled in the expanded glass continuous fiber between said interior pipe (1) and the said housing (2).

3. sound eliminator for automobile according to claim 1 and 2; It is characterized in that; Said housing (2) comprises housing body (21); This housing body (21) two ends form the diminishing closing in of size portion (22), and the end of this closing in portion (22) is provided with the housing opening (23) that supplies said interior pipe (1) to pass.

4. sound eliminator for automobile according to claim 3 is characterized in that, said housing body (21) is a round column structure, and the internal diameter of this round column structure is greater than 80mm, the conical structure that said closing in portion (22) forms for the end through this round column structure of spinning.

5. sound eliminator for automobile according to claim 3 is characterized in that, said housing body (21) is a round column structure, and the internal diameter of this round column structure is equal to or less than 80mm, the conical structure of said closing in portion (22) for forming through the end of pushing this round column structure.

6. sound eliminator for automobile according to claim 1 and 2; It is characterized in that; Manage the expansion mouth (13) that (1) comprises interior tube body (12) and is formed on tube body (12) end in this in said; Said through hole (11) is arranged on the said interior tube body (12), and the internal diameter of said expansion mouth (13) is greater than tube body (12) in said.

7. sound eliminator for automobile according to claim 6 is characterized in that, is fixed with the different transition piece (4) of material with said interior pipe (1) on the inwall of said expansion mouth (13).

8. sound eliminator for automobile according to claim 7 is characterized in that, said transition piece (4) is the Stainless Steel Wire packing ring.