CN-224225153-U - Automobile engine cover made of composite material

CN224225153UCN 224225153 UCN224225153 UCN 224225153UCN-224225153-U

Abstract

The utility model discloses an automobile engine cover made of a composite material, which comprises an engine cover body, wherein the engine cover body sequentially comprises a strength layer, a heat insulation layer and a corrosion resistance layer from inside to outside, and sealing frames are arranged on the peripheries of the strength layer, the heat insulation layer and the corrosion resistance layer. The utility model has the advantages that the carbon fiber reinforced plastic is used as the strength layer, the strength is high, the density is far lower than that of the metal material, and the heat insulation layer of the honeycomb polyurethane foam composite material is matched, so that the whole weight of the engine cover is greatly reduced. The heat insulation layer can effectively prevent heat generated by the engine from being transferred to the cockpit by utilizing the heat insulation characteristics of the air cavity of the honeycomb structure and polyurethane, and the corrosion-resistant layer is made of glass fiber reinforced plastic, so that the material has strong chemical stability, good tolerance to corrosive media such as rainwater, salt mist and the like, and the service life of the engine cover is prolonged. The three layers are connected through a hot pressing process, so that all the layers are tightly combined into a whole, and the strength and the stability of the whole structure are enhanced.

Inventors

LI SULI

Assignees

常州奎克汽车配件制造有限公司

Dates

Publication Date: 20260512
Application Date: 20250619

Claims (3)

1. The automobile engine cover made of the composite material is characterized by comprising an engine cover body (1), wherein the engine cover body (1) sequentially comprises a strength layer (2), a heat insulation layer (3) and a corrosion resistant layer (4) from inside to outside, and sealing frames (5) are arranged on the peripheries of the strength layer (2), the heat insulation layer (3) and the corrosion resistant layer (4).
2. The automobile engine cover made of the composite material according to claim 1, wherein the strength layer (2) is made of carbon fiber reinforced plastic, the heat insulation layer (3) is made of honeycomb polyurethane foam composite material, the corrosion resistant layer (4) is made of glass fiber reinforced plastic, and the sealing frame (5) is made of rubber material.
3. A composite material automobile engine cover according to claim 2, wherein the heat insulation layer (3) is connected with the strength layer (2) and the corrosion resistant layer (4) respectively through a hot pressing process, and the sealing frame (5) is connected with the peripheries of the strength layer (2), the heat insulation layer (3) and the corrosion resistant layer (4) through a hot pressing process.

Description

Automobile engine cover made of composite material Technical Field The utility model belongs to the technical field of automobile parts, and particularly relates to an automobile engine cover made of a composite material. Background The automobile engine cover is used as an important component of an automobile body, plays a role in protecting an engine and accessories thereof, and has important influence on the overall appearance and aerodynamic performance of the automobile. Conventional automobile engine hoods are made of metal materials, such as steel plates, and although the metal materials have high strength, the metal materials have obvious disadvantages. For example, the metal material has a large weight, which increases the overall weight of the automobile, further increases the fuel consumption, and does not meet the development trend of light weight of the automobile, and meanwhile, the metal engine cover has poor heat insulation and noise reduction performances, and the heat and noise generated by the engine work are easily transferred into the cockpit, thus influencing the driving comfort. In addition, the corrosion resistance of the metal material is relatively poor, and the metal material is easily corroded by environmental factors (such as rainwater, salt mist and the like) to rust in a long-term use process, so that the service life and the appearance quality of the engine cover are affected. Accordingly, there is a need to provide a composite automotive hood to solve the above-mentioned problems in the background art. Disclosure of utility model The utility model aims to provide an automobile engine cover made of a composite material, which solves the technical problem that the traditional automobile engine cover is difficult to meet various requirements of strength, heat insulation, wear resistance and the like in performance. In order to solve the technical problems, the utility model provides an automobile engine cover made of a composite material, which comprises an engine cover body, wherein the engine cover body sequentially comprises a strength layer, a heat insulation layer and a corrosion resistance layer from inside to outside, and sealing frames are arranged on the peripheries of the strength layer, the heat insulation layer and the corrosion resistance layer. As a further explanation, the material of intensity layer is carbon fiber reinforced plastic, the material of insulating layer is cellular polyurethane foam combined material, the material of corrosion-resistant layer is glass fiber reinforced plastic, the material of sealing frame is rubber material. As a further explanation, the heat insulation layer is respectively connected with the strength layer and the corrosion-resistant layer through a hot pressing process, and the sealing frame is connected with the peripheries of the strength layer, the heat insulation layer and the corrosion-resistant layer through a hot pressing process. Compared with the prior art, the utility model has the beneficial effects that: 1. The carbon fiber reinforced plastic is used as the strength layer, the strength is high, the density is far lower than that of the metal material, and the heat insulation layer of the honeycomb polyurethane foam composite material is matched, so that the whole weight of the engine cover is greatly reduced. The heat insulation layer of the honeycomb polyurethane foam composite material can effectively prevent heat generated by an engine from being transferred to the cockpit by utilizing the heat insulation characteristics of an air cavity of a honeycomb structure and polyurethane, and meanwhile, the porous structure of the heat insulation layer has good absorption and blocking effects on engine noise, so that driving comfort is remarkably improved. The corrosion-resistant layer is made of glass fiber reinforced plastic, the material has strong chemical stability and good tolerance to corrosive media such as rainwater, salt mist and the like, and compared with a metal material, the corrosion-resistant layer can effectively avoid the problems of rust and corrosion and prolong the service life of an engine cover. The three layers are connected through a hot pressing process, so that all the layers are tightly combined into a whole, and the strength and the stability of the whole structure are enhanced. 2. The sealing frame is made of rubber materials, the rubber materials have good elasticity and sealing performance, the automobile body can be closely attached to the sealing frame, rainwater, dust and the like can be effectively prevented from entering an engine room, and the engine and accessories thereof are protected from being polluted and damaged by the outside. In addition, the sealing frame also plays a role in buffering, so that collision impact force with a vehicle body can be reduced when the engine cover is closed, and the engine cover and the vehicle body are protected. Additional features and advantages