CN107444293B - Functional heat insulation plate for automobile - Google Patents
Functional heat insulation plate for automobile Download PDFInfo
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- CN107444293B CN107444293B CN201710648213.9A CN201710648213A CN107444293B CN 107444293 B CN107444293 B CN 107444293B CN 201710648213 A CN201710648213 A CN 201710648213A CN 107444293 B CN107444293 B CN 107444293B
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- heat insulation
- substrate carrier
- plate
- layer
- carrier plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0876—Insulating elements, e.g. for sound insulation for mounting around heat sources, e.g. exhaust pipes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0884—Insulating elements, e.g. for sound insulation for mounting around noise sources, e.g. air blowers
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a functional heat insulation plate for an automobile. The magnetic coating comprises a substrate carrier plate, a protective layer, a magnetic layer and a coating layer, wherein notches are uniformly distributed on one surface of the substrate carrier plate; the other surface of the substrate carrier plate is uniformly provided with bulges; the protective layer covers the surface with the notch of the substrate carrier plate; the magnetic layer is coated on the surface of the substrate carrier plate with the protrusions; the cladding layer is compounded on the surface of the magnetic layer. The heat insulation board is structurally designed by adopting a multi-layer structure for compounding, and the designed pyramid structure or cube structure is used for increasing the surface area of the heat insulation board and playing a role in sound insulation; the heat insulation effect of the heat insulation plate is improved by adopting the heat insulation coating to be matched with the notch; the surface adsorption of the heat insulation board is realized through the composite magnetic layer.
Description
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to a functional heat-insulating plate for an automobile.
Background
Heat shield for passenger car bodies, also called heat shield, is a sheet metal placed between adjacent surfaces in heat transfer engineering in order to reduce the damage of the radiation heat exchange surfaces to other parts. Body insulation panels are typically disposed on both sides of the engine and over the underbody exhaust duct channels. The heat shield mainly utilizes the reflection heat insulation principle of the heat shield to separate the heat transfer, and has certain local noise separation function.
The heat transfer process from the car heating part to the interior of the car body is very unstable, is greatly influenced by factors such as ambient temperature, wind speed and the motion state of the car, and needs to be analyzed from different motion states of the car by combining a heat transfer theory. The main function of the heat insulation plate part of the car is to reduce the transmission of radiation heat flow. When the vehicle is idling and at low speed, the heat radiation heat flow is reduced, and simultaneously, the heat radiation heat flow also has a certain function of preventing the hot air from directly exchanging heat with the vehicle body in a convection way. Therefore, it is desirable that the heat-insulating board dissipate heat as quickly as possible.
At high speeds, its effect is substantially limited to reducing the transmission of radiant heat flow, since the air flow is faster at the bottom of the car body, which has a cooling effect on the heat generating components, i.e. the convective heat transfer will be beneficial for the heat dissipation of the bottom parts of the car. If the bottom structure design is unreasonable, serious turbulence occurs in the air flow, the convective heat transfer coefficient can be rapidly increased, and poor heat transfer with the automobile body can also be generated, so that the condition needs to be avoided during design. When some vehicles run at high speed, the floor of the vehicle body is locally hot, and at the moment, the heat radiation is stronger due to the higher temperature of an engine and an exhaust pipe, and the heat radiation is also in a certain relation with the poor flow of high-speed hot air at the bottom of the vehicle.
The heat insulating materials are classified into three types, namely porous materials, heat reflecting materials and vacuum materials. The former uses the pores contained in the material itself to insulate heat because the air or inert gas in the pores has a very low thermal conductivity, such as foam, fiber material, etc.; the heat reflecting material has high reflection coefficient and can reflect heat, such as gold, silver, nickel, aluminum foil or metal-plated polyester, polyimide film, etc. The vacuum insulation material is insulated by blocking convection by using internal vacuum of the material. The aerospace industry has stringent requirements for the weight and volume of the heat insulating materials used, and often requires that the heat insulating materials have sound insulation, vibration reduction, corrosion resistance and other properties. The need for insulation varies from aircraft to aircraft. Foam plastics, superfine glass wool, high silicon-oxygen wool and vacuum insulation boards are commonly used for heat insulation in cabins and cockpit of airplanes.
The heat insulation board of the car body has the following typical structures:
(1) a typical single layer aluminum sheet: the thickness of the plate is generally 0.5-0.8 mm, and the plate is used for heat insulation positions with complicated shapes, large sizes and low heat insulation requirements. The cost is reduced, and the processing is convenient.
(2) The single-layer convex-clad plate has the plate thickness of 0.5-0.6 mm generally, has certain requirements on the density of the convex-clad plate generally, has good strength and good dimensional stability of a manufactured part due to cold hardening of the surface during convex-clad plate processing, increases the surface area of the heat insulation plate, improves the reflection capability of the heat insulation plate on heat and sound waves, improves the flowing state of air on the surface of the heat insulation plate, and has better heat insulation effect than a single-layer flat aluminum plate.
(3) Double-layer hollow convex hull aluminum plate: an air interlayer between the two convex package plates. The thickness of the plate is generally 0.2-0.6 mm, and the density of the convex hull plate is required to be certain. The structure can greatly improve the sound insulation and heat insulation capabilities under the condition that the weight of parts is not increased much. But the processing technology has higher requirements.
(4) Multilayer aluminum laminate: generally, one aluminum plate is attached with a plurality of aluminum foil convex clad plates, and the heat insulation effect is achieved by utilizing the heat insulation effect of an air layer between the aluminum foil convex clad plates and the strong heat ray reflecting capacity of the aluminum layer. The heat insulation effect is good. In some vehicle types, small holes are uniformly distributed on the aluminum plate to achieve the silencing effect.
(5) Multilayer composite board: the common structure is that the middle hollow part or the interlayer of the double-layer aluminum plate is filled with materials such as glass wool, asbestos, aluminum foil and the like, and the aluminum plate is attached to the surface of the fiber material for noise reduction, so that reflection type heat insulation and noise reduction are achieved. For example, the Passat-B5 vehicle type has a heat insulation part made of aluminum plates and high molecular composite materials, but the technology is still immature in China at present, and the application of other vehicle types is less. The interlayer filling material in the automobile interlayer heat insulation board generally adopts glass wool made of glass fiber with light weight, good sound absorption performance and low heat conductivity as the interlayer material.
(6) Double-sided aluminum-plated steel sheet: the parts made of the double-sided aluminum-plated steel plate have stable structure size and good heat insulation and sound insulation effects, and have the defects of poor corrosion resistance, large specific gravity and difficulty in reducing the weight of the whole vehicle. But this material is not as corrosion resistant as aluminum plates.
Generally, composite boards and multilayer boards have high cost and good heat insulation effect; secondly, a double-layer hollow convex hull plate; the double-sided aluminum-plated steel plate has a heat insulation effect between the double-layer hollow convex cladding plate and the single-layer convex cladding plate. The single-layer convex hull plate increases the heat dissipation and reflection areas of the plate, and the comprehensive capacity effect is better than that of a common single-layer flat aluminum plate.
Disclosure of Invention
The invention aims to provide a functional heat insulation plate for an automobile, which is characterized in that the structural design of the heat insulation plate is realized by adopting the compounding of a multilayer structure, and the designed golden tower structure or cubic structure is used for increasing the surface area of the heat insulation plate and playing a role in sound insulation; the heat insulation effect of the heat insulation plate is improved by adopting the heat insulation coating to be matched with the notch; the surface adsorption of the heat insulation board is realized through the composite magnetic layer.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a functional heat insulation plate for an automobile, which comprises a substrate carrier plate, a protective layer, a magnetic layer and a coating layer, wherein notches are uniformly distributed on one surface of the substrate carrier plate; the other surface of the substrate carrier plate is uniformly provided with bulges; the protective layer covers the surface with the notch of the substrate carrier plate; the magnetic layer is coated on the surface of the substrate carrier plate with the protrusions; the cladding layer is compounded on the surface of the magnetic layer.
Further, the substrate carrier plate is made of a stainless steel plate or a plastic plate.
Further, the protective layer is a thermal insulation coating.
Further, the magnetic layer is made of magnet powder and is used for improving the surface adsorption force of the heat insulation plate.
Further, the protrusions are needle-shaped structures with the diameter of 0.1mm-5mm, and the height of the protrusions ranges from 1mm-5 mm.
Further, the inner cavity structure of the notch is an inverted pyramid structure or a cube structure, and the pyramid structure or the cube structure is used for increasing the surface area of the heat insulation plate and playing a role in sound insulation.
Furthermore, the heat insulation coating is composed of sodium silicate, porous quartz powder, asbestos, perlite, polyvinyl alcohol, glass wool and water, and the formed coating is coated on the surface of the substrate carrier plate.
The invention has the following beneficial effects:
the structural design of the heat insulation board is realized by adopting the multi-layer structure composition, and the designed golden tower structure or cubic structure is used for increasing the surface area of the heat insulation board and playing a role in sound insulation; the heat insulation effect of the heat insulation plate is improved by adopting the heat insulation coating to be matched with the notch; the surface adsorption of the heat insulation board is realized through the composite magnetic layer.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an exploded view of a functional heat-insulating panel for an automobile according to the present invention;
FIG. 2 is a top view of the structure of FIG. 1;
FIG. 3 is an enlarged view of a portion of the structure at A in FIG. 2;
fig. 4 is a schematic structural diagram of a substrate carrier.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Referring to fig. 1-3, the present invention is a functional heat insulation board for an automobile, comprising a substrate carrier 1, a protective layer 2, a magnetic layer 3 and a coating layer 4, wherein notches 102 are uniformly formed on one surface of the substrate carrier 1; the other surface of the substrate carrier plate 1 is uniformly provided with bulges 101; the protective layer 2 covers the surface of the substrate carrier plate 1 with the notch 102; the magnetic layer 3 is coated on the surface of the substrate carrier plate 1 with the protrusions 101; the clad layer 4 is compounded on the surface of the magnetic layer 3.
As shown in FIG. 4, the substrate carrier board 1 is made of stainless steel plate or plastic plate, and is used for the structural strength of the heat insulation board.
Wherein, the protective layer 2 is a heat insulation coating.
Wherein, the magnetic layer 3 is made of magnet powder and is used for improving the surface adsorption force of the heat insulation plate.
Wherein, the bulge 101 is a needle-shaped structure with the diameter of 0.1mm-5mm and the height of 1mm-5 mm.
The inner cavity structure of the notch 102 is an inverted pyramid structure or a cube structure, and the pyramid structure or the cube structure is used for increasing the surface area of the heat insulation plate and playing a role in sound insulation.
Wherein the heat insulation coating is composed of sodium silicate, porous quartz powder, asbestos, perlite, polyvinyl alcohol, glass wool and water, and the formed coating is coated on the surface of the substrate carrier plate 1.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (1)
1. A functional heat-insulating panel for an automobile, comprising: the magnetic coating comprises a substrate carrier plate (1), a protective layer (2), a magnetic layer (3) and a coating layer (4), wherein notches (102) are uniformly distributed on one surface of the substrate carrier plate (1); the other surface of the substrate carrier plate (1) is uniformly provided with bulges (101); the protective layer (2) covers the surface of the substrate carrier plate (1) with the notch (102); the magnetic layer (3) is coated on the surface of the substrate carrier plate (1) with the protrusions (101); the coating layer (4) is compounded on the surface of the magnetic layer (3);
the substrate carrier plate (1) adopts a stainless steel plate or a plastic plate;
the protective layer (2) is a heat insulation coating;
the heat insulation coating consists of sodium silicate, porous quartz powder, asbestos, perlite, polyvinyl alcohol, glass wool and water;
the magnetic layer (3) is made of magnet powder;
the protrusions (101) are needle-shaped structures with the diameter of 0.1mm-5mm, and the height of the protrusions ranges from 1mm to 5 mm;
the inner cavity structure of the notch (102) is an inverted pyramid structure or a cube structure;
the surface area of the heat insulation board is increased through the gold tower structure or the cubic structure, and the sound insulation effect is achieved; the heat insulation effect of the heat insulation plate is improved by adopting the heat insulation coating to be matched with the notch; the surface adsorption of the heat insulation board is realized through the composite magnetic layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710648213.9A CN107444293B (en) | 2017-08-01 | 2017-08-01 | Functional heat insulation plate for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710648213.9A CN107444293B (en) | 2017-08-01 | 2017-08-01 | Functional heat insulation plate for automobile |
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| Publication Number | Publication Date |
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| CN107444293A CN107444293A (en) | 2017-12-08 |
| CN107444293B true CN107444293B (en) | 2020-09-15 |
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| CN201710648213.9A Active CN107444293B (en) | 2017-08-01 | 2017-08-01 | Functional heat insulation plate for automobile |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331465B (en) * | 2017-08-16 | 2023-09-19 | 合肥东凯智控科技有限公司 | New energy automobile engine pencil insulating sheath |
| CN110509748A (en) * | 2019-09-29 | 2019-11-29 | 重庆千能实业有限公司 | A kind of automotive roof cover structure |
| CN111376540B (en) * | 2020-03-02 | 2021-11-05 | 上海宝山大陆汽车配件股份有限公司 | Composite multi-effect automobile heat insulation plate and preparation method thereof |
| CN112061043A (en) * | 2020-09-14 | 2020-12-11 | 新程汽车工业有限公司 | Functional heat insulation board for vehicle and processing method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2642591Y (en) * | 2003-09-26 | 2004-09-22 | 长春市富锋冲压件厂 | Heat insulating board |
| CN201714886U (en) * | 2010-07-27 | 2011-01-19 | 浙江浦江亚盛磁电有限公司 | Magnetic rubber thermal insulating cushion pad |
| CN203198877U (en) * | 2013-03-06 | 2013-09-18 | 三河世原汽车科技有限公司 | Thermal baffle for automobile |
| CN105564509A (en) * | 2014-11-07 | 2016-05-11 | 兴化市雅兰机械制造有限公司 | Engine cover plate and production technology thereof |
| CN204851410U (en) * | 2015-06-01 | 2015-12-09 | 华晨汽车集团控股有限公司 | Engine sheath separates heat exchanger |
| CN205239384U (en) * | 2015-11-16 | 2016-05-18 | 北京汽车研究总院有限公司 | Cover heat insulating mattress, cover and car |
| CN205131141U (en) * | 2015-11-20 | 2016-04-06 | 天津禹神节能保温材料有限公司 | Automobile -used heat insulating board |
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