CN203669962U - Resonator for automobile exhaust system and automobile - Google Patents

Fig. 1 is the decomposition texture schematic diagram of the utility model embodiment engine exhaust system resonator.As shown in Figure 1, described

100 comprises the support 1 on the gas exhaust piping that can be arranged on vent systems, support 1 is provided with

2, and the end of

2 is provided with balancing

3, and after being arranged on described gas exhaust piping, balancing

3 forms the form of overhang with respect to described gas exhaust piping.

For the embodiment shown in Fig. 1, due to the

100 of overhang form being installed on the pipeline of automobile exhaust system, therefore when vibration is passed to after

100, balancing

3 on

100 also follow vibration and by himself damping characteristic by vibration attenuation, simultaneously resonator 100 vibration of vent systems self that can also decay, avoids vent systems that larger vibration is passed; On the other hand,

100 can also be adjusted the resonance characteristics of vent systems, and it has improved the resonant frequency of vent systems, thereby makes this resonant frequency avoid well the common vibration frequency range of automobile, has reduced the risk of damaging vent systems because of resonance.In general, above-mentioned

100 other component of automobile of can decaying are passed to the vibration that vibration in vent systems and vent systems are transmitted to other component of automobile.

In use, above-mentioned

100 can be arranged on by support 1 on the gas exhaust piping of vent systems, because balancing

3 is installed with the form of overhang, therefore balancing

3 also produces vibration after the vibrational excitation that is subject to gas exhaust piping, and then damping characteristic by self material is by the vibration attenuation on gas exhaust piping.Particularly,

100 not only can decay be passed to vent systems from other component of automobile as the vibration of motor or vehicle chassis, and shape, structure by setting

100 with and mounting point on gas exhaust piping, can also make

100 provide vibration compensation in specific direction, thereby decay vent systems pass to other component of automobile as the vibration of vehicle body.Can protect better like this vent systems, avoid vent systems because vibration is damaged, as modal fracture damage.

In some specific embodiments, in embodiment as shown in Figure 1 of example, the number of

2 is two, and these two

2 are symmetricly set on the both sides of support 1, and the end of each

2 is equipped with a balancing weight 3.The ability that two link

2 and balancing

3 have strengthened attenuation vibration is set, and symmetrically arranged mode being more conducive to the synchronous fading of vibration, is a kind of preferred set-up mode.

The core of above-mentioned

100 is just balancing

3, balancing

3 can be made up of damping material, such as polymer matrix composites, aluminum matrix composite, magnesium base composite material, metal-resin composite, rubber etc., described balancing weight is preferably made up of rubber conventionally, and rubber material easily obtains, cost is low.Wherein the weight of balancing

3 and damping constant according to actual needs (for example different vehicle and the road conditions of conventionally travelling) design targetedly, design process can be by CAE(Computer Aided Engineering, computer aided analysis) carry out, the weight and the damping constant precision that obtain are like this high, good with the matching degree of actual demand.

In above-mentioned

100,

2 comprises the

21,

22 and the balancing

23 that connect successively, the mounting surface (being specially the surface relative with the first fixed support 11) of

21 is plane, and balancing

23 has the

231 that forms interference fit with balancing weight 3.This

2 can be made up of stainless steel material machining.

21 is connected with the first

11 by welding, particularly, in the mounting surface of

21, be provided with protruding locating

211, this locating

211 coordinates with the

112 on the first

11, limits when mounted the relative position of

2 and the first

11.

Balancing

23 is connected with balancing

3 by interference fit, particularly, on the

231 of balancing

23, be provided with

232, so that

231 section gaps and discontinuous, in the process of interference assembling,

232 is conducive to make the distance between the

231 of each segmentation to increase, thereby can more easily balancing

3 be contained in

231, distance between each segmentation

231 reduces afterwards, thereby balancing

3 is clamped.

In addition, in the embodiment shown in fig. 1, be also provided with

233 on the

231 of the

2 in left side, this

233 can increase the area of contact with balancing weight, thereby better balancing

3 is clamped, avoid in the space that surrounds from

231 of balancing

3, departing from the process of vibration.

In above-mentioned

100, support 1 comprises the first

11 being connected with

2 and the second

12, the first

11 of being connected with described gas exhaust piping and the second

12 are fixedly connected with as bolt by fastening piece.Wherein the first

11 and the second

12 are made up of two to three component respectively again, and each component structural that makes like this to form support 1 is simple, and stamping process easy to use is made.

Particularly, the first

11 comprises the identical and symmetrically arranged right

111 of two shapes, this right

111 has two orthogonal planes, one of them plane is connected with

2, and this plane is provided with

112, another plane is connected with dull and

113, and this flat

113 links together two right angle connecting sheets 111.Two right

111 and a dull and

113 are by corrosion resistant plate impact briquetting, and welding forms the first

11 more afterwards.

The second

12 comprises the identical and symmetrically arranged bending connecting

121 of two shapes, each

121 all has a plane and a cambered surface, the plane of two these bending connecting

121 fits together and is connected with the first

11, and the cambered surface of two these bending connecting

121 is oppositely arranged and forms the shape coordinating with described gas exhaust piping.Two bending

121 are by corrosion resistant plate impact briquetting, and welding forms the second

12 more afterwards.

The first

11 and the second fixed

12 are respectively equipped with through hole, can utilize construction bolt nut group 4 that the two is coupled together.

In above-mentioned

100, support 1,

2, construction bolt nut group 4 etc. are all for balancing

3 is arranged in vent systems.

The material that above-mentioned

100 is selected is simple and easy to get, for example, only select rubber, steel.Manufacturing process is also simple and easy to do, and punching press, welding, bolt connect all can.Therefore above-mentioned

100 is not only practical, and cost of production is lower.

Except each embodiment of above-mentioned

100, the utility model embodiment also provides a kind of automobile, and this automobile comprises vent systems, is provided with the

100 described in as above arbitrary embodiment on the

200 of described vent systems.

1. an automobile exhaust system resonator, it is characterized in that, comprise the support on the gas exhaust piping that can be arranged on vent systems, described support is provided with link arm, the end of described link arm is provided with balancing weight, and after being arranged on described gas exhaust piping, described balancing weight forms the form of overhang with respect to described gas exhaust piping.

2. automobile exhaust system resonator according to claim 1, is characterized in that, the number of described link arm is two, and these two link arms are symmetricly set on the both sides of described support, and the end of each described link arm is equipped with a balancing weight.

3. vent systems resonator according to claim 1 and 2, is characterized in that, described balancing weight is made up of rubber.

4. vent systems resonator according to claim 1 and 2, it is characterized in that, described link arm comprises the support assembly department, neck and the balancing weight assembly department that connect successively, the mounting surface of described support assembly department is plane, and described balancing weight assembly department has the bound edge that forms interference fit with described balancing weight.

5. vent systems resonator according to claim 4, is characterized in that, described mounting surface is provided with protruding locating column.

6. vent systems resonator according to claim 4, is characterized in that, described bound edge is provided with multiple intervals, so that described bound edge section gap and discontinuous.

7. vent systems resonator according to claim 1 and 2, it is characterized in that, described support comprises the first fixed support being connected with described link arm and the second fixed support being connected with described gas exhaust piping, and described the first fixed support is fixedly connected with by fastening piece with described the second fixed support.

8. vent systems resonator according to claim 7, it is characterized in that, described the first fixed support comprises the identical and symmetrically arranged right angle connecting sheet of two shapes, described right angle connecting sheet has two orthogonal planes, a plane is connected with described link arm, and this plane is provided with positioning hole, another plane is connected with dull and stereotyped connecting sheet, and described dull and stereotyped connecting sheet links together two described right angle connecting sheets.

9. vent systems resonator according to claim 7, it is characterized in that, described the second fixed support comprises the identical and symmetrically arranged bending connecting sheet of two shapes, each described bending connecting sheet all has a plane and a cambered surface, the plane of two described bending connecting sheets fits together and is connected with described the first fixed support, and the cambered surface of two described bending connecting sheets is oppositely arranged and forms the shape coordinating with described gas exhaust piping.

10. an automobile, comprises vent systems, it is characterized in that, is provided with the resonator as described in claim 1-9 any one on the gas exhaust piping of described vent systems.