A lightweight deflector

Abstract

The utility model relates to a lightweight air deflector including a core plate in the middle of a sandwich structure and two panels located on both sides of the core plate, wherein the core plate is fixedly connected to the panels, and the cross section of the core plate is a hexagonal honeycomb with matrix distribution; the technical solution proposed by the technical solution is that the two panels clamp the core plate to form a stable support structure, and the overall formed plate has low density and light weight, and is a hollow structure with low heat conduction efficiency, which can reduce heat exchange inside and outside the cab. When it is hot, the entry of external heat is minimized, and when it is cold, the heat loss is minimized; the weight of the overall air deflector shell can be reduced by 50%-85% compared with the traditional top air deflector.

Description

Technical Field

[0001] The utility model relates to the field of automobile lightweighting, in particular to a lightweight air deflector. Background Art

[0002] Among all the resistances during the driving process of a car, except for air resistance, rolling resistance, climbing resistance and acceleration resistance are all proportional to the mass of the whole vehicle. Therefore, reducing the weight of the car body can effectively reduce the resistance during the driving process of the car, thereby reducing fuel consumption or power consumption. The report of the World Aluminum Association pointed out that if the weight of the car is reduced by 10%, fuel consumption can be reduced by 6%-7%, and emissions can be reduced by about 5%-6%. In the context of energy conservation and emission reduction, lightweighting of cars is bound to be a trend of future development. In particular, the covering area of ​​the head of a truck is large and heavy, and the temperature difference between the inside and outside of the car is large during driving. Utility Model Content

[0003] In order to make up for the above deficiencies, the utility model provides a lightweight deflector cover, aiming to improve the problem of heavy weight of the deflector shell in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lightweight fairing includes a core plate in the middle of a sandwich structure and two panels located on both sides of the core plate, wherein the core plate is fixedly connected to the panels, and the cross-section of the core plate is a hexagonal honeycomb distributed in a matrix.

[0005] Furthermore, the core board is one layer, and the face plate is two layers, and is located on both sides of the core board.

[0006] Furthermore, the core plate and the panel are connected by mold closing and curing.

[0007] Furthermore, the core board and the panel are connected by vacuum curing and molding using a single-sided mold.

[0008] Furthermore, the panel is a thermosetting resin-based fiber composite board or a thermoplastic resin-based fiber composite board.

[0009] Furthermore, the thickness of the panel is 0.3mm-2mm, and the thickness of the core board 2 is 2mm-20mm.

[0010] Furthermore, the panel is a thermosetting resin that is a combination of one or more of epoxy resin, phenolic resin, and cyanate resin.

[0011] Furthermore, the panel thermoplastic resin is a combination of one or more of polypropylene (PP), polycarbonate (PC), and acrylonitrile-butadiene-styrene copolymer (ABS).

[0012] Furthermore, the panel fiber is one or more combinations of quartz fiber, glass fiber, and carbon fiber.

[0013] Furthermore, the core plate is a para-aramid paper honeycomb or a meta-aramid paper honeycomb.

[0014] The utility model has the following beneficial effects:

[0015] The technical solution proposed in this technical solution is that two panels clamp the core plate to form a stable support structure, and the overall formed plate has low density and light weight, and is a hollow structure with low heat conduction efficiency, which can reduce heat exchange inside and outside the cab. When it is hot, try to reduce external heat entry, and when it is cold, try to reduce heat loss. The weight of the overall deflector shell can be reduced by 50%-85% compared to the traditional top deflector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of a lightweight air deflector proposed by the utility model.

[0017] Legend: 1. Panel; 2. Core board. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Reference Figure 1 A lightweight fairing is a sandwich structure consisting of two layers of panel 1 structure and one layer of core board 2 structure; the preparation process of the sandwich structure is: injection molding, mold combination curing molding or single-sided mold vacuum curing molding. The panel 1 material of the sandwich structure is a thermosetting resin-based fiber composite material or a thermoplastic resin-based fiber composite material. The thickness of the panel 1 of the sandwich structure is 0.3mm-2mm. The core board of the sandwich structure is a para-aramid paper honeycomb or a meta-aramid paper honeycomb. The thickness of the core board 2 of the sandwich structure is 2mm-20mm. The thermosetting resin is a combination of one or more of epoxy resin, phenolic resin, and cyanate resin. The thermoplastic resin is a combination of one or more of polypropylene (PP), polycarbonate (PC), and acrylonitrile-butadiene-styrene copolymer (ABS). The fiber is a combination of one or more of quartz fiber, glass fiber, and carbon fiber.

[0020] The utility model can be integrally formed using a variety of processes, such as injection molding, mold-jointed curing molding or single-sided mold vacuum curing molding; a variety of panel materials can also be used to meet the requirements of different vehicles. The production process is flexible and a wide range of materials can be used to produce low-priced products.

[0021] Example 1

[0022] Preparation of top fairing of sandwich structure: lay 3 layers of epoxy glass fiber prepreg in the mold, place 10mm thick meta-aramid honeycomb on top of the prepreg, lay 3 layers of epoxy glass fiber prepreg on the surface of the honeycomb, wrap a vacuum bag on the single-sided mold surface, send it to a 180℃ oven and evacuate the whole process, and demold after curing for 3 hours.

[0023] Post-processing: Cut the edge of the sandwich structure top air shroud flat, activate the surface of the top air shroud with 600-grit sandpaper, clean it with anhydrous ethanol, and dry it naturally.

[0024] Example 2

[0025] Preparation of the top fairing of the sandwich structure: a 3 mm thick para-aramid honeycomb is placed in a mold and the mold is closed, and the molten polypropylene / glass fiber composite material is injected into the mold, and the mold is demolded after cooling to room temperature.

[0026] Post-processing: Cut the edge of the sandwich structure top air shroud flat, activate the surface of the top air shroud with 600-grit sandpaper, clean it with anhydrous ethanol, and dry it naturally.

[0027] Example 3

[0028] Preparation of the top fairing of the sandwich structure: lay 2 layers of epoxy carbon fiber prepreg in the mold, place a 5mm thick meta-aramid honeycomb on top of the prepreg, and lay 2 more layers of epoxy carbon fiber prepreg on the surface of the honeycomb. After closing the mold, send it to a 180℃ oven and demold it after curing for 3 hours.

[0029] 2) Post-processing: Cut the edge of the sandwich structure top air guide cover flat, activate the surface of the top air guide cover with 600-grit sandpaper, clean it with anhydrous ethanol, and dry it naturally.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lightweight fairing, characterized in that: It comprises a core plate (2) in the middle of a sandwich structure, and two face plates (1) located on both sides of the core plate (2), wherein the core plate (2) is fixedly connected to the face plates (1), and the cross section of the core plate (2) is a hexagonal honeycomb with matrix distribution; The core plate (2) is a single layer, and the face plate (1) is a two-layer plate located on both sides of the core plate (2); the core plate (2) and the face plate (1) are connected by mold closing and curing; the core plate (2) and the face plate (1) are connected by single-sided mold vacuum curing; the face plate (1) is a thermosetting resin-based fiber composite plate or a thermoplastic resin-based fiber composite plate; the face plate (1) has a thickness of 0.3 mm to 2 mm, and the core plate (2) has a thickness of 2 mm to 20 mm; the core plate (2) is a para-aramid paper honeycomb or a meta-aramid paper honeycomb.

2. A lightweight fairing according to claim 1, characterized in that: The panel (1) is a thermosetting resin such as epoxy resin, phenolic resin or cyanate resin.

3. The lightweight fairing according to claim 1, characterized in that: The thermoplastic resin of the panel (1) is one of polypropylene (PP), polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS).

4. The lightweight fairing according to claim 1, characterized in that: The fiber of the panel (1) is one of quartz fiber, glass fiber and carbon fiber.

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