CN203547863U - Composite thermal insulation board used for vehicle exhaust system - Google Patents
Composite thermal insulation board used for vehicle exhaust system Download PDFInfo
- Publication number
- CN203547863U CN203547863U CN201320774565.6U CN201320774565U CN203547863U CN 203547863 U CN203547863 U CN 203547863U CN 201320774565 U CN201320774565 U CN 201320774565U CN 203547863 U CN203547863 U CN 203547863U
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- China
- Prior art keywords
- thermal
- thermal insulation
- thermal baffle
- exhaust system
- heat insulation
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- Expired - Fee Related
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Abstract
The utility model discloses a composite thermal insulation board used for a vehicle exhaust system. The composite thermal insulation board used for the vehicle exhaust system comprises a first thermal insulation board, a second thermal insulation board and a thermal insulation fiber blanket, wherein the thermal insulation fiber blanket is clamped between the first thermal insulation board and the second thermal insulation board. The composite thermal insulation board used for the vehicle exhaust system is of the structure that the two layers of thermal insulation boards are combined with the thermal insulation fiber blanket, the thermal insulation boards are made of reflecting materials and the thermal insulation fiber blanket is made of thermal insulation materials, so that in the process of working, thermal radiation generated by the composite thermal insulation board and the exhaust system is insulated and weakened, thermal radiation which can be transmitted to a vehicle body is very weak, drivers and passengers have no feeling about the thermal radiation, and therefore the composite thermal insulation board is suitable for being used by the vehicle with a very narrow interval between the vehicle body and the exhaust system.
Description
Technical field
The utility model relates to vehicle exhaust system Combined thermal insulative panel, and the narrower vehicle in gap that described Combined thermal insulative panel is especially applicable between vehicle body and vent systems uses.
Background technique
Vehicle exhaust system adopts aludip to make with thermal baffle conventionally, as shown in Figure 1, during use, thermal baffle 2 is fixed on vehicle body 1, guarantee that the spacing between thermal baffle 2 and vent systems 3 is more than or equal to 20mm simultaneously, spacing between thermal baffle 2 and vehicle body 1 is more than or equal to 20mm, to utilize the characteristic that air heat conductivity is low, fully reduce the thermal radiation of vent systems 3 to vehicle body 1; In addition, the outlet pipe in vent systems or silencing apparatus require to have larger spacing between thermal baffle 2, and this spacing will guarantee conventionally in 50mm left and right, are mainly for fear of outlet pipe and thermal baffle shock generation abnormal sound in vehicle movement.
The working principle of thermal baffle 2 is: the thermal radiation that thermal baffle 2 sends vent systems 3 reflexes to a part in air, self absorb a part, owing to thering is air clearance between thermal baffle 2 and vehicle body 1, the thermal radiation that thermal baffle 2 reflexes in air clearance can be in Vehicle Driving Cycle, with Air Flow, shed, and then reach heat insulation object.As can be seen here, existing thermal baffle requires to need larger space between vent systems 3 and vehicle body 1, and guarantee space ventilator, otherwise be difficult to obtain good effect of heat insulation, if thermal baffle space ventilator condition is around poor, be easy to produce heat accumulation, like this, at vehicle under idling or low speed operating mode, because the air clearance between thermal baffle 2 and vehicle body 1 does not have Air Flow, therefore the thermal radiation that, space can be reflected thermal baffle 2 is conducted lentamente to vehicle body 1.
In addition, some vehicle adopts the scheme of exhaust duct (exhaust duct at this place comprises gas exhaust manifold and outlet pipe) in heat insulation fiber band parcel vent systems to realize heat insulation, this heat insulation fiber mostly is glass fibre or ceramic fiber, because this bi-material has good heat-shielding performance, the surface temperature of the exhaust duct of parcel heat insulation fiber band will reduce hundreds of degree Celsius, can very effectively improve the heat evil of vehicle bottom.But there is following defect in this scheme: 1, require the ground Clearance of exhaust duct larger, otherwise exhaust duct may be because being subject to the scratch breakage on ground under the operating modes such as upward slope on the one hand; When 2, vehicle is crossed muddy water road surface, muddy water can be stained with on heat insulation fiber band, affects the working life of heat insulation fiber band and the life-span of exhaust duct; 3, heat insulation fiber band cannot play good coating function for the larger silencing apparatus of volume in vent systems, catalyst etc.
As can be seen here, the narrower vehicle in gap that existing thermal baffle is not suitable between vehicle body and vent systems uses, and the heat insulation fiber band that plays heat-blocking action is not suitable for the less vehicle use of vent systems ground Clearance, this kind of vehicle is for example range-extended electric car, compact type fuel vehicle etc.
Model utility content
The above defect that the utility model exists in order to solve existing thermal baffle and heat insulation fiber band, the Combined thermal insulative panel that provides the narrower vehicle in gap between a kind of applicable vehicle body and vent systems to use.
To achieve these goals, the technical solution adopted in the utility model is: a kind of vehicle exhaust system Combined thermal insulative panel, comprise the first thermal baffle, the second thermal baffle and heat insulation fiber blanket, described heat insulation fiber blanket is located between described the first thermal baffle and the second thermal baffle.
Preferably, described the first thermal baffle, the second thermal baffle and heat insulation fiber blanket pass through together with rivet.
Preferably, described heat insulation fiber blanket between the first thermal baffle and the second thermal baffle in compressive state.
Preferably, described heat insulation fiber blanket is located between described the first thermal baffle and the second thermal baffle with 1/10 to 1/2 the state that is compressed to nature thickness.
Preferably, the natural thickness of described heat insulation fiber blanket is 1mm to 3mm.
Preferably, described heat insulation fiber blanket is located between described the first thermal baffle and the second thermal baffle with 1/5 the state that is compressed to nature thickness.
Preferably, described the first thermal baffle and the second thermal baffle are aludip.
The beneficial effects of the utility model are: vehicle exhaust system of the present utility model adopts the structure of two-layer thermal baffle in conjunction with heat insulation fiber blanket with Combined thermal insulative panel, thermal baffle is wherein reflecting material, heat insulation fiber blanket is thermoinsulation material, like this, the thermal radiation that vent systems produces will be through a series of isolated and weakening process by Combined thermal insulative panel of the present utility model, the thermal radiation that can be passed to vehicle body is quite faint, driver and conductor can not feel, therefore, the narrower vehicle in gap that Combined thermal insulative panel of the present utility model is applicable between vehicle body and vent systems uses.
Accompanying drawing explanation
Fig. 1 shows the mounting structure of existing vehicle exhaust system thermal baffle;
Fig. 2 shows according to the cross-sectional schematic of the structure of vehicle exhaust system described in the utility model thermal baffle.
Drawing reference numeral:
1-vehicle body; 2-thermal baffle;
3-vent systems; 5-Combined thermal insulative panel;
51-the first thermal baffle; 52-the second thermal baffle;
The heat insulation spacing blanket of 53-.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
As shown in Figure 2, vehicle exhaust system of the present utility model with Combined thermal insulative panel 5, comprise the first thermal baffle 51, the second thermal baffle 52 and be located in the first thermal baffle 51 and the second thermal baffle 52 between heat insulation fiber blanket 53.This first thermal baffle 51 and the second thermal baffle 52 can be aludip or aluminium sheet, and the former advantage is to have had the pyroconductivity height of aluminium and the high feature of intensity of steel concurrently, and the latter's pyroconductivity is stronger, but easily deforms.This heat insulation fiber blanket 53 can be glass fibre or ceramic fiber.
Above the first thermal baffle 51, the second thermal baffle 52 and heat insulation fiber blanket 53 can pass through together with rivet, for example, can in the edge of Combined thermal insulative panel, three be riveted together by rivet.
Above heat insulation fiber blanket 53 preferably between the first thermal baffle and the second thermal baffle in compressive state, can increase so on the one hand the compactness of heat insulation fiber blanket 53, increase the heat-insulating property of heat insulation fiber blanket, can make on the other hand Combined thermal insulative panel 5 there is less thickness, reduce the requirement to installing space.At this, 1/10 to 1/2 the state that heat insulation fiber blanket 53 can be compressed to nature thickness is located between described the first thermal baffle 51 and the second thermal baffle 52, particularly with 1/5 the state that is compressed to nature thickness, be located between the first thermal baffle 51 and the second thermal baffle 52, in practical application, can select nature thickness is the heat insulation fiber blanket 53 of 1mm to 3mm, and in the present embodiment, selecting nature thickness is the heat insulation fiber blanket 53 of 2mm.
Vehicle exhaust system of the present utility model with the mechanism of heat insulation of Combined thermal insulative panel 5 is:
As shown in Figure 2, second thermal baffle 52 contiguous with vent systems reflects the thermal radiation from vent systems 3, and absorbs a part of thermal radiation; The air that the thermal radiation part being absorbed by the second thermal baffle 52 is flowed is taken away, a part is absorbed by heat insulation fiber blanket 53, at this, due to the weak thermal conduction characteristic of heat insulation fiber blanket 53, the thermal radiation that the second thermal baffle 52 absorbs is taken away major part by air, only have less thermal radiation to be absorbed by heat insulation fiber blanket 53; The part heat being absorbed by heat insulation fiber blanket 53 conducts to first thermal baffle 51 contiguous with vehicle body 1 through the longer time; A heat part that conducts to the first thermal baffle 51 is reflected back, and a part is absorbed by the first thermal baffle 51, and the first thermal baffle 51 conducts to the heat of absorption in air, simultaneously to vehicle body 1 radiation.As can be seen here, the thermal radiation that vent systems 3 produces will be through a series of isolated and weakening process by Combined thermal insulative panel 5, and the thermal radiation that can be passed to vehicle body 1 is quite faint, and driver and conductor can not feel.
According to the embodiment shown in graphic, describe structure of the present utility model, feature and action effect in detail above; the foregoing is only preferred embodiment of the present utility model; but the utility model does not limit practical range with shown in drawing; every change of doing according to conception of the present utility model; or be revised as the equivalent embodiment of equivalent variations; when not exceeding yet specification and illustrating contain spiritual, all should be in protection domain of the present utility model.
Claims (7)
1. a vehicle exhaust system Combined thermal insulative panel, is characterized in that: comprise the first thermal baffle, the second thermal baffle and heat insulation fiber blanket, described heat insulation fiber blanket is located between described the first thermal baffle and the second thermal baffle.
2. vehicle exhaust system Combined thermal insulative panel according to claim 1, is characterized in that: described the first thermal baffle, the second thermal baffle and heat insulation fiber blanket pass through together with rivet.
3. vehicle exhaust system Combined thermal insulative panel according to claim 1, is characterized in that: described heat insulation fiber blanket between the first thermal baffle and the second thermal baffle in compressive state.
4. vehicle exhaust system Combined thermal insulative panel according to claim 3, is characterized in that: described heat insulation fiber blanket is located between described the first thermal baffle and the second thermal baffle with 1/10 to 1/2 the state that is compressed to nature thickness.
5. vehicle exhaust system Combined thermal insulative panel according to claim 4, is characterized in that: the natural thickness of described heat insulation fiber blanket is 1mm to 3mm.
6. according to the vehicle exhaust system Combined thermal insulative panel described in claim 4 or 5, it is characterized in that: described heat insulation fiber blanket is located between described the first thermal baffle and the second thermal baffle with 1/5 the state that is compressed to nature thickness.
7. according to the vehicle exhaust system Combined thermal insulative panel described in any one in claim 1 to 5, it is characterized in that: described the first thermal baffle and the second thermal baffle are aludip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320774565.6U CN203547863U (en) | 2013-11-29 | 2013-11-29 | Composite thermal insulation board used for vehicle exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320774565.6U CN203547863U (en) | 2013-11-29 | 2013-11-29 | Composite thermal insulation board used for vehicle exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547863U true CN203547863U (en) | 2014-04-16 |
Family
ID=50465992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320774565.6U Expired - Fee Related CN203547863U (en) | 2013-11-29 | 2013-11-29 | Composite thermal insulation board used for vehicle exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547863U (en) |
-
2013
- 2013-11-29 CN CN201320774565.6U patent/CN203547863U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20191129 |