KR101872634B1

KR101872634B1 - Automobile hood

Info

Publication number: KR101872634B1
Application number: KR1020170011773A
Authority: KR
Inventors: 노정우; 김황용
Original assignee: 도레이첨단소재 주식회사
Priority date: 2017-01-25
Filing date: 2017-01-25
Publication date: 2018-06-28

Abstract

According to one embodiment of the present invention, provided is a vehicle hood, which comprises: an outdoor panel; and an indoor panel coupled to a rear surface of the outdoor panel. Moreover, the indoor panel is made of fiber reinforced plastic including a base resin and reinforced fiber. Accordingly, lightening can be secured while mechanical strength and durability are satisfied.

Description

Automotive Hood {AUTOMOBILE HOOD}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a car hood, and more particularly, to a lightweight car hood.

BACKGROUND ART An automobile is largely composed of a body and a chassis. The body of the automobile is composed of a car, an engine room, a trunk room, a fender, and the like as an exterior of the vehicle.

On the other hand, the hood is installed in an openable form on the upper side of the engine room, and includes an outer panel and an inner panel coupled to a rear surface of the outer panel.

In recent years, as government regulations on automobile fuel economy have become more restrictive and consumers are increasingly interested in energy efficiency, most automakers have developed hybrid and electric vehicles to satisfy fuel efficiency regulations and energy efficiency. And focuses on the development of new alternative materials.

Particularly, in relation to the development of a new alternative material for lighter weight, the hood is made only of iron (Fe) having a high specific gravity, which causes a sudden increase in the weight of the vehicle.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle hood which can be reduced in weight while satisfying mechanical strength and corrosion resistance.

According to an aspect of the present invention, there is provided an electronic device comprising: an outer panel; and an inner panel coupled to a rear surface of the outer panel, wherein the inner panel is made of a fiber- Thereby providing a formed car hood.

The inner panel may include a first inner panel extending in the transverse direction of the outer panel and a second inner panel intersecting the first inner panel and extending in the longitudinal direction of the outer panel.

At least one of the first inner panel and the second inner panel may be formed.

Wherein the base resin includes at least one of a thermoplastic resin and a thermosetting resin, and the reinforcing fiber is selected from the group consisting of a metal fiber, a metalized inorganic fiber, a metallized synthetic fiber, a glass fiber, a polyester fiber, a polyamide fiber, And may include at least one of carbon fiber, ceramic fiber, mineral fiber, basalt fiber, inorganic fiber, aramid fiber, kenaf fiber, jute fiber, flax fiber, hemp fiber, cellulose fiber, .

Wherein the thermosetting resin comprises at least one of an epoxy resin, a phenolic resin, a unsaturated polyester resin, a vinyl ester, and a polyurethane, wherein the thermoplastic resin is polypropylene, Polypropylene, polyethylene, low density polyethylene, high density polyethylene, polyester, polystyrene, polyvinyl chloride, modified polyphenylene oxide, Polyamide 6, polyamide 610, polyamide 66, polyphenylene sulfide, acrylonitrile butadiene styrene (ABS), polycarbonate, polyurethane, But are not limited to, polybutylene terephthalate, poly acetal, polysulfone, polyaryl Polyether sulfone, polyaryl sulfone, polyphenylsulfone, polyethersulfone, polyetheretherketone, polyamideimide, polyetherimide and polytetrafluoroethylene (PTFE) Or the like.

The reinforcing fibers may comprise up to 85 weight percent of the total weight of the fiber-reinforced plastic.

And an insulating layer formed between the outer panel and the inner panel.

Wherein the insulating layer is made of a material selected from the group consisting of glass fiber, polyester fiber, polyamide fiber, ceramic fiber, mineral fiber, basalt fiber, inorganic fiber, aramid fiber, kenaf fiber, jute fiber, flax fiber, hemp fiber, Coarse fibers and / or rubber.

As described above, according to the automobile hood according to the embodiment of the present invention, weight reduction can be realized while satisfying mechanical strength and corrosion resistance.

1 is a rear view of a vehicle hood according to an embodiment of the present invention.
2 is a cross-sectional view taken along the line II-II in Fig.
3 is a sectional view of a vehicle hood according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which: FIG. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the drawings, the thicknesses are enlarged to clearly indicate layers and regions. Like parts are designated with like reference numerals throughout the specification. It will be understood that when an element such as a layer, film, region, plate, or the like is referred to as being "on" another portion, it includes not only the element directly over another element, Conversely, when a part is "directly over" another part, it means that there is no other part in the middle.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control. Also, although methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention, suitable methods and materials are described herein.

Hereinafter, a car hood according to an embodiment of the present invention will be described in detail with reference to Figs. 1 and 2. Fig.

FIG. 1 is a rear view of a vehicle hood according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line II-II of FIG.

Referring to FIG. 1, a vehicle hood according to an embodiment of the present invention includes an outer panel 100 and an inner panel 200 coupled to a rear surface of the outer panel.

Herein, the term "rear surface" is defined as a surface facing an engine room in which an engine of an automobile is disposed.

Since the outer panel 100 forms an outer appearance of a vehicle hood, the outer panel 100 may be formed in various shapes according to the design of the automobile to which the invention is applied. The outer panel 100 may be formed of a metal such as aluminum (Al), iron (Fe), polypropylene, Butadiene styrene, polycarbonate and the like, fiber reinforced plastic, and the like.

Although not shown for the sake of convenience, at least one side of the outer panel 100 may include a fastening portion for fastening with the vehicle body.

The inner panel 200 may be coupled to the rear surface of the outer panel 100 and may include a first inner panel 200a and a second inner panel 200b extending in the lateral direction And a second inner panel 200b intersecting the outer panel 100a and extending in the longitudinal direction (Y direction) of the outer panel 100. [

For convenience, FIG. 1 shows two first inner panels 200a and two second inner panels 200b positioned to intersect with the first inner panel 200a. However, the second inner panels 200b are not limited thereto, A plurality of the panel 200a and the second inner panel 200b may be formed.

The width and thickness of the inner panel 200 can be varied as needed.

By a first inner panel 200a supporting the horizontal direction (X direction) of the upper panel 100 from the rear surface of the outer panel 100 and a second inner panel 200b supporting the vertical direction (Y direction) The overall mechanical strength of the hood can be improved as compared with the case where the panel 100 alone exists.

The inner panel 200 may be formed of fiber reinforced plastic.

The fiber-reinforced plastic of the inner panel 200 may comprise a base resin and reinforcing fibers impregnated with the base resin.

The base resin may include at least one of a thermoplastic resin and a thermosetting resin.

The thermosetting resin may include at least one of an epoxy resin, a phenolic resin, a unsaturated polyester resin, a vinyl ester, and a polyurethane. The thermoplastic resin may include polypropylene ( polypropylene, polyethylene, low density polyethylene, high density polyethylene, polyester, polystyrene, polyvinyl chloride, modified polyphenylene oxide (modified polyphenylene oxide) polyamide 610, polyamide 66, polyamide 66, polyphenylene sulfide, acrylonitrile butadiene styrene (ABS), polycarbonate, polyurethane (polyurethane) ), Polybutylene terephthalate, poly acetal, polysulfone, poly Polyether sulfone, polyaryl sulfone, polyphenylsulfone, polyethersulfone, polyetheretherketone, polyamideimide, polyetherimide, and polytetrafluoroethylene (PTFE) ). &Lt; / RTI >

The reinforcing fibers include metal fibers, metalized inorganic fibers, metallized synthetic fibers, glass fibers, polyester fibers, polyamide fibers, graphite fibers, carbon fibers, ceramic fibers, mineral fibers, , Kenaf fibers, jute fibers, flax fibers, hemp fibers, cellulosic fibers, sisal fibers and coarse fibers.

At this time, it is preferable that the reinforcing fiber is 85% by weight or less based on the total weight of the fiber reinforced plastic.

If the reinforcing fiber content exceeds 85% by weight, it is difficult to mix the base resin with the reinforcing fiber, or the mold is damaged, and the product The price competitiveness of the company will also decline.

The inner panel 200 may have a single layer or a plurality of layered structures.

Referring to FIG. 2, the inner panel 200 is connected to the outer panel 100 and the outer panel 100 through joints 250, which are joined at both ends of the first inner panel and the second inner panel by mechanical fastening, Can be combined.

Hereinafter, a car hood according to another embodiment of the present invention will be described with reference to FIG.

The automotive hood according to the embodiment shown in FIG. 3 is the same as the embodiment described with reference to FIGS. 1 and 2 except for the insulating layer 300 located between the outer panel 100 and the inner panel 200, And the description thereof will be omitted.

3 is a sectional view of a vehicle hood according to another embodiment of the present invention.

Referring to FIG. 3, the automotive hood according to another embodiment of the present invention further includes an insulating layer 300 positioned between the outer panel 100 and the inner panel 200.

The insulating layer 300 may be formed of an insulating material such as glass fiber or rubber.

The insulating layer 300 may be formed in a region corresponding to the inner panel 200. The inner panel 200 may be formed of a fiber reinforced plastic and may be formed of a metal such as iron thereby preventing galvanic corrosion.

For example, when carbon fiber is included as the reinforcing fiber of the inner panel 200, galvanic corrosion may occur in the outer panel 100 formed of iron. In the case where the insulating layer 300 So that galvanic corrosion of the outer panel 100 can be prevented.

As described above, weight reduction can be realized while satisfying the mechanical strength and corrosion resistance according to the embodiment of the present invention.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

100: outer panel 200: inner panel
250: junction 300: insulating layer

Claims

Outer panel, and
And an inner panel coupled to a rear surface of the outer panel,
Wherein the inner panel is formed of a fiber-reinforced plastic including a base resin and reinforcing fibers,
Wherein the inner panel includes a first inner panel extending in the transverse direction of the outer panel and a second inner panel intersecting the first inner panel and extending in the longitudinal direction of the outer panel,
And an insulating layer formed between the outer panel and the inner panel.

delete

The method of claim 1,
Wherein at least one of the first inner panel and the second inner panel is formed.

The method of claim 1,
Wherein the base resin includes at least one of a thermoplastic resin and a thermosetting resin,
Wherein the reinforcing fiber is selected from the group consisting of a metal fiber, a metalized inorganic fiber, a metalized synthetic fiber, a glass fiber, a polyester fiber, a polyamide fiber, a graphite fiber, a carbon fiber, a ceramic fiber, a mineral fiber, , Kenaf fiber, jute fiber, flax fiber, hemp fiber, cellulose fiber, sisal fiber and coir fiber.

5. The method of claim 4,
Wherein the thermosetting resin comprises at least one of an epoxy resin, a phenolic resin, a unsaturated polyester resin, a vinyl ester, and a polyurethane,
The thermoplastic resin may be selected from the group consisting of polypropylene, polyethylene, low density polyethylene, high density polyethylene, polyester, polystyrene, polyvinyl chloride, Modified polyphenylene oxide, polyamide 6, polyamide 610, polyamide 66, polyphenylene sulfide, ABS, acrylonitrile butadiene styrene (ABS), polycarbonate polycarbonate, polyurethane, polybutylene terephthalate, polyacetal, polysulfone, polyarylsulfone, polyphenylsulfone, poly (ether sulfone) polyethersulfone, polyetheretherketone, polyamideimide, polyetherimide, e), and polytetrafluoroethylene (PTFE).

5. The method of claim 4,
Wherein the reinforcing fibers comprise up to 85 weight percent of the total weight of the fiber-reinforced plastic.

delete

The method of claim 1,
Wherein the insulating layer is made of a material selected from the group consisting of glass fiber, polyester fiber, polyamide fiber, ceramic fiber, mineral fiber, basalt fiber, inorganic fiber, aramid fiber, kenaf fiber, jute fiber, flax fiber, hemp fiber, A car hood comprising at least one of coarse fibers and rubber.