CN108868992B - Heat shield - Google Patents
Heat shield Download PDFInfo
- Publication number
- CN108868992B CN108868992B CN201810798490.2A CN201810798490A CN108868992B CN 108868992 B CN108868992 B CN 108868992B CN 201810798490 A CN201810798490 A CN 201810798490A CN 108868992 B CN108868992 B CN 108868992B
- Authority
- CN
- China
- Prior art keywords
- heat shield
- cover
- heat
- outer cover
- connecting part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000009413 insulation Methods 0.000 description 7
- 239000000725 suspension Substances 0.000 description 4
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
- F01N13/141—Double-walled exhaust pipes or housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/16—Selection of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
An aluminum plate heat shield comprises a heat shield main body, a heat shield outer shield and a heat shield inner shield. The heat shield main body comprises an outer cover connecting part and a heat shield fixing part which are mutually perpendicular and overlapped and welded, one end of the outer cover connecting part is a semicircle, and the middle part of the outer cover connecting part is provided with a round hole matched with the heat shield inner cover. The heat shield outer cover comprises an outer cover semi-cylinder and two outer cover side walls which are parallel to each other, semi-circles on the outer cover semi-cylinder and the outer cover connecting part are connected through mutually perpendicular lap welding, and the outer cover side walls are connected through mutually perpendicular lap welding with two side edges of the outer cover connecting part. The round holes arranged in the middle of the connecting parts of the inner cover and the outer inner cover of the heat shield and matched with the inner cover of the heat shield are mutually and vertically connected in a lap welding mode, the free end of the inner cover of the heat shield and the free end of the outer cover of the heat shield are positioned on the same side, the free end of the inner cover of the heat shield and the free end of the outer cover of the heat shield are positioned on one side of the main body of the longitudinal power assembly, and an output shaft of the longitudinal power assembly penetrates through the inner cover of the heat shield.
Description
Technical Field
The invention relates to a heat shield which is light in unit weight and separates a longitudinal power assembly and a high-temperature side of an exhaust pipe.
Background
The side of the longitudinal power assembly, which is close to the exhaust pipe, is usually suspended to work in a high-temperature environment, and high requirements are imposed on the reliability and the high-temperature fatigue durability of the corresponding suspension bracket. In order to improve the reliability and the high-temperature fatigue durability of the suspension bracket of the longitudinal power assembly, a heat shield bracket is generally added on one side close to the longitudinal power assembly so as to separate the longitudinal power assembly and the corresponding suspension bracket, thereby reducing the adverse effect of temperature on the longitudinal power assembly and the corresponding suspension bracket. The existing heat shield is made of steel thin plates, the unit weight of the manufactured heat shield is large, the energy consumption of an automobile is adversely affected, meanwhile, the heat shield is easy to rust, the service life is short, and the use cost is increased.
Disclosure of Invention
The invention mainly aims to provide the heat shield which has a simple structure, light weight per unit volume and long service life and is used for separating the longitudinal power assembly from the high-temperature side of the exhaust pipe.
The technical scheme adopted by the invention is as follows: a heat shield is disposed between a longitudinally disposed powertrain and an exhaust pipe. The heat shield is an aluminum plate heat shield and comprises a heat shield main body, a heat shield outer shield and a heat shield inner shield. The heat shield main body comprises an outer cover connecting part and an inner cover fixing part, the outer cover connecting part and the heat shield fixing part are mutually perpendicular and are connected in lap welding mode, one end, far away from the heat shield fixing part, of the outer cover connecting part is semicircular, and a round hole matched with the heat shield inner cover is formed in the middle of the outer cover connecting part. The heat shield outer cover comprises an outer cover semi-cylinder and two outer cover side walls which are parallel to each other, semi-circles on the outer cover semi-cylinder and the outer and inner cover connecting parts are matched and connected through mutually vertical lap welding, and the outer cover side walls and the two side edges of the outer and inner cover connecting parts are respectively connected through mutually vertical lap welding. The heat-insulating cover inner cover is cylindrical, round holes which are formed in the middle of the connecting parts of the heat-insulating cover inner cover and the outer inner cover and matched with the heat-insulating cover inner cover are mutually perpendicular and connected in a lap joint mode, the free end of the heat-insulating cover inner cover and the free end of the heat-insulating cover outer cover are located on the same side, the free end of the heat-insulating cover inner cover and the free end of the heat-insulating cover outer cover are located on one side of the longitudinal power assembly main body, and an output shaft of the longitudinal power assembly penetrates through the heat-insulating cover inner cover.
Because the heat shield is an aluminum plate heat shield, the weight of the unit volume is smaller than that of the steel sheet, the thickness of the aluminum plate heat shield is larger than that of the steel sheet under the same weight condition, and when the thickness of the corresponding aluminum plate is the same as that of the steel sheet, the whole weight of the aluminum plate heat shield is smaller than that of the heat shield made of the steel sheet. Thus, the thickness of the aluminum plate heat shield can be larger than that of the steel sheet used for manufacturing the heat shield, and is smaller than the ratio of the specific gravity of the steel plate to the specific gravity of the aluminum plate multiplied by the thickness of the steel plate, so that the heat shield effect can be improved on one hand, and the energy consumption can be reduced due to the weight reduction on the other hand. Meanwhile, the heat shield main body, the heat shield outer cover and the heat shield inner cover are mutually connected in a mutually vertical lap welding mode, so that the processing and manufacturing difficulty of the heat shield can be greatly reduced. In addition, aluminum plates are not as prone to rust damage as steel plates, thereby facilitating the improvement of the service life of the heat shield. Because the main body of the longitudinal power assembly is close to one end of the exhaust pipe and is positioned in the space surrounded by the heat shield main body, the heat shield outer cover and the heat shield inner cover, the main body of the longitudinal power assembly is separated from the heat source, and the longitudinal power assembly is not easily damaged by hot gas exhausted by the exhaust pipe, so that the performance and the service life of the longitudinal power assembly are not guaranteed. Therefore, the invention is a very excellent heat shield.
Preferably, the connecting portion of the heat shield fixing portion and the vehicle body is away from the longitudinal power assembly main body. According to the preferred scheme, the heat shield and the vehicle body are convenient to connect and install.
Preferably, the width of the connecting portion between the outer and inner cover connecting portions and the heat shield fixing portion is larger than the width of the connecting portion between the outer and inner cover connecting portions and the outer cover side wall. The preferable scheme is beneficial to improving the rigidity of the heat shield and prolonging the service life of the heat shield.
Preferably, the heat shield is a rust-proof aluminum plate heat shield. Namely, a rust-proof cover made of a rust-proof aluminum plate. The preferable scheme is beneficial to reducing the use and maintenance cost and improving the service life of the heat shield.
Preferably, the heat shield fixing portion is provided with a plurality of through holes for fixedly connecting the heat shield and the vehicle body by bolts. According to the preferred scheme, the heat shield is connected with the vehicle body through the bolt structure, and the heat shield is simple in structure and easy to assemble and disassemble.
In summary, the beneficial effects of the invention are as follows: the heat shield has the advantages of simple structure, light weight per unit volume, easiness in processing and manufacturing, long service life and good heat insulation effect, and is very excellent.
Drawings
Fig. 1: the structure of the invention is schematically shown;
in the figure: the heat insulation cover comprises a heat insulation cover 1, a heat insulation cover main body 1.1, an outer cover and inner cover connecting part 1.11, a heat insulation cover fixing part 1.12, a through hole 1.13, a heat insulation cover outer cover 1.2, an outer cover semi-cylinder 1.21, an outer cover side wall 1.22, a heat insulation cover inner cover 1.3, a longitudinal power assembly 2 and an exhaust pipe 3.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings.
As shown in fig. 1, a heat shield 1 is provided between a longitudinally disposed power assembly 2 and an exhaust pipe 3. The heat shield 1 is an anti-rust aluminum plate heat shield and comprises a heat shield main body 1.1, a heat shield outer cover 1.2 and a heat shield inner cover 1.3. The heat shield main body 1.1 comprises an outer shield connecting part 1.11 and a heat shield fixing part 1.12, the outer shield connecting part 1.11 and the heat shield fixing part 1.12 are mutually perpendicular and connected in lap welding mode, one end of the outer shield connecting part 1.11, far away from the heat shield fixing part 1.12, is a semicircle, and a round hole matched with the heat shield inner shield 1.3 is formed in the middle of the outer shield connecting part 1.11. The heat shield cover 1.2 comprises a cover half cylinder 1.21 and two mutually parallel cover side walls 1.22, the semi-circles on the cover half cylinder 1.21 and the cover connecting part 1.11 are matched and mutually vertically lapped and welded, and the two side edges of the cover side walls 1.22 and the cover connecting part 1.11 are respectively vertically lapped and welded. The heat-insulating cover inner cover 1.3 is cylindrical, round holes which are arranged in the middle of the heat-insulating cover inner cover 1.3 and the middle of the outer inner cover connecting part 1.11 and matched with the heat-insulating cover inner cover 1.3 are mutually and vertically overlapped and welded, the free end of the heat-insulating cover inner cover 1.3 and the free end of the heat-insulating cover outer cover 1.2 are positioned on the same side, the free end of the heat-insulating cover inner cover 1.3 and the free end of the heat-insulating cover outer cover 1.2 are positioned on one side of the main body of the longitudinal power assembly 2, and an output shaft of the longitudinal power assembly 2 penetrates through the heat-insulating cover inner cover 1.3. In this embodiment, the width of the connection portion between the outer and inner cover connection portions 1.11 and the heat-shield fixing portion 1.12 is larger than the width of the connection portion between the outer and inner cover connection portions 1.11 and the outer cover side wall 1.22, and the connection portion between the heat-shield fixing portion 1.12 and the vehicle body is far away from the main body of the longitudinal power assembly 2.
Preferably, the heat shield fixing portion 1.12 is provided with two through holes 1.13 for bolting the heat shield 1 to the vehicle body.
The above embodiments are merely preferred embodiments of the present invention, and are not intended to limit the specific structures and the scope of the present invention. Indeed, equivalent variations on the shape, construction and design purposes described in accordance with the present invention may be made. Therefore, all changes in shape, structure and design that come within the meaning and range of equivalency of the invention are to be embraced within their scope.
Claims (5)
1. A heat shield (1) is arranged between a longitudinal power assembly (2) and an exhaust pipe (3); the method is characterized in that: the heat shield (1) is an aluminum plate heat shield and comprises a heat shield main body (1.1), a heat shield outer cover (1.2) and a heat shield inner cover (1.3); the heat shield main body (1.1) comprises an outer shield connecting part (1.11) and a heat shield fixing part (1.12), the outer shield connecting part (1.11) and the heat shield fixing part (1.12) are mutually and vertically connected in a lap welding mode, one end, far away from the heat shield fixing part (1.12), of the outer shield connecting part (1.11) is a semicircle, and a round hole matched with the heat shield inner shield (1.3) is formed in the middle of the outer shield connecting part (1.11); the heat shield outer cover (1.2) comprises an outer cover half cylinder (1.21) and two outer cover side walls (1.22) which are parallel to each other, semi-circles on the outer cover half cylinder (1.21) and the outer cover connecting part (1.11) are matched and are mutually and vertically connected in a lap welding mode, and two side edges of the outer cover side walls (1.22) and the outer cover connecting part (1.11) are respectively and vertically connected in a lap welding mode; the heat-insulating cover inner cover (1.3) is cylindrical, round holes arranged in the middle of the heat-insulating cover inner cover (1.3) and the middle of the outer inner cover connecting part (1.11) and matched with the heat-insulating cover inner cover (1.3) are mutually vertically and lapped and welded, the free end of the heat-insulating cover inner cover (1.3) and the free end of the heat-insulating cover outer cover (1.2) are positioned on the same side, and the free end of the heat-insulating cover inner cover (1.3) and the free end of the heat-insulating cover outer cover (1.2) are positioned on one side of the main body of the longitudinal power assembly (2), and an output shaft of the longitudinal power assembly (2) penetrates through the heat-insulating cover inner cover (1.3).
2. A heat shield according to claim 1, wherein: the connecting part of the heat shield fixing part (1.12) and the vehicle body is far away from the main body of the longitudinal power assembly (2).
3. A heat shield according to claim 1, wherein: the width of the connecting part of the outer cover connecting part (1.11) and the heat shield fixing part (1.12) is larger than that of the connecting part of the outer cover connecting part (1.11) and the outer cover side wall (1.22).
4. A heat shield according to claim 1, wherein: the heat shield (1) is an anti-rust aluminum plate heat shield.
5. A heat shield according to any one of claims 1-4, wherein: the heat shield fixing part (1.12) is provided with a plurality of through holes (1.13) for fixedly connecting the heat shield (1) and the vehicle body through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810798490.2A CN108868992B (en) | 2018-07-19 | 2018-07-19 | Heat shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810798490.2A CN108868992B (en) | 2018-07-19 | 2018-07-19 | Heat shield |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108868992A CN108868992A (en) | 2018-11-23 |
| CN108868992B true CN108868992B (en) | 2024-03-19 |
Family
ID=64303428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810798490.2A Active CN108868992B (en) | 2018-07-19 | 2018-07-19 | Heat shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108868992B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005263157A (en) * | 2004-03-22 | 2005-09-29 | Kayaba Ind Co Ltd | Heat insulation structure in suspension device |
| CN101395364A (en) * | 2006-01-05 | 2009-03-25 | 费德罗―莫格尔公司 | Heat shield having locating and retention features |
| JP2010143415A (en) * | 2008-12-19 | 2010-07-01 | Suzuki Motor Corp | Heat shield cover structure for vehicle |
| CN202782640U (en) * | 2012-09-03 | 2013-03-13 | 北京汽车股份有限公司 | Power assembly front overhang device and automobile provided with power assembly front overhang device |
| CN203078290U (en) * | 2013-01-16 | 2013-07-24 | 北京汽车股份有限公司 | Power assembly rear suspension and automobile |
| CN105059404A (en) * | 2015-09-10 | 2015-11-18 | 安徽江淮汽车股份有限公司 | Cab rear suspension assembly and air spring protective device thereof |
| CN205382975U (en) * | 2015-12-29 | 2016-07-13 | 北京汽车研究总院有限公司 | Vehicle vent -pipe way separates heat exchanger and car |
| FR3035927A1 (en) * | 2015-05-05 | 2016-11-11 | Peugeot Citroen Automobiles Sa | DEVICES AND METHOD FOR THERMALLY PROTECTING BALL |
| CN206144650U (en) * | 2016-10-26 | 2017-05-03 | 江铃控股有限公司 | Preceding three way catalyst converter heat -proof device |
| CN208763736U (en) * | 2018-07-19 | 2019-04-19 | 浙江零跑科技有限公司 | A kind of heat shield |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6688618B2 (en) * | 2001-08-17 | 2004-02-10 | Ford Global Technologies, Llc | Road noise reduction apparatus and method using selective placement of vibration dampers |
| FR2996823B1 (en) * | 2012-10-15 | 2014-11-21 | Snecma | DETACHABLE THERMAL PROTECTION IN LINE FOR A SUSPENSION ROLL OF A TURBOMACHINE |
-
2018
- 2018-07-19 CN CN201810798490.2A patent/CN108868992B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005263157A (en) * | 2004-03-22 | 2005-09-29 | Kayaba Ind Co Ltd | Heat insulation structure in suspension device |
| CN101395364A (en) * | 2006-01-05 | 2009-03-25 | 费德罗―莫格尔公司 | Heat shield having locating and retention features |
| JP2010143415A (en) * | 2008-12-19 | 2010-07-01 | Suzuki Motor Corp | Heat shield cover structure for vehicle |
| CN202782640U (en) * | 2012-09-03 | 2013-03-13 | 北京汽车股份有限公司 | Power assembly front overhang device and automobile provided with power assembly front overhang device |
| CN203078290U (en) * | 2013-01-16 | 2013-07-24 | 北京汽车股份有限公司 | Power assembly rear suspension and automobile |
| FR3035927A1 (en) * | 2015-05-05 | 2016-11-11 | Peugeot Citroen Automobiles Sa | DEVICES AND METHOD FOR THERMALLY PROTECTING BALL |
| CN105059404A (en) * | 2015-09-10 | 2015-11-18 | 安徽江淮汽车股份有限公司 | Cab rear suspension assembly and air spring protective device thereof |
| CN205382975U (en) * | 2015-12-29 | 2016-07-13 | 北京汽车研究总院有限公司 | Vehicle vent -pipe way separates heat exchanger and car |
| CN206144650U (en) * | 2016-10-26 | 2017-05-03 | 江铃控股有限公司 | Preceding three way catalyst converter heat -proof device |
| CN208763736U (en) * | 2018-07-19 | 2019-04-19 | 浙江零跑科技有限公司 | A kind of heat shield |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108868992A (en) | 2018-11-23 |
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