CN218198533U

CN218198533U - Combined composite material roof of passenger car

Info

Publication number: CN218198533U
Application number: CN202222539416.3U
Authority: CN
Inventors: 荣毅超; 高学浴; 杜兴刚; 范传军; 龚磊杰
Original assignee: Zhejiang Qinghua Yangtze River Delta Military Civilian Collaborative Innovation Research Institute Jiaxing; Jiaxing Deyi New Material Co ltd
Current assignee: Zhejiang Qinghua Yangtze River Delta Military Civilian Collaborative Innovation Research Institute Jiaxing; Jiaxing Deyi New Material Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-01-03
Anticipated expiration: 2032-09-23

Abstract

The utility model discloses a combined composite roof of a passenger car, which comprises roof modules with set quantity and fixed connection; the roof module comprises a module body and a skirt; the skirt edge is provided with a fixing hole; the module main body comprises an upper composite material layer, a lower composite material layer and a sandwich; the sandwich is flame-retardant PVC closed-cell foam; the skirt edge is formed by extending an upper composite material layer and a lower composite material layer; skirts between two adjacent roof modules are overlapped, and are sealed by adhesive at the overlapping position and fixed by a fixing bolt group; the outer sides of the adjacent two roof modules at the lap joint position are flat, and the inner sides of the adjacent two roof modules are provided with grooves. The roof module prepared from the composite material can solve the problem that the framework roof skin needs to be subjected to high tension to generate large prestress during assembly, and has excellent flatness. The unique connecting structure and the blocking mode of the combined composite material roof not only are convenient to adapt to the serial vehicle types with different lengths of the same roof arc line for use, but also have stronger load capacity.

Description

Combined composite material roof of passenger car

Technical Field

The utility model belongs to the technical field of combined material passenger train roof technique and specifically relates to a passenger train combination formula combined material roof.

Background

The existing bus roof is formed by combining a metal (steel or aluminum alloy) framework and a skin covering piece, and the construction scheme is to weld the top framework in an assembling and welding mode and then weld or bond the top skin in an expanding and pulling mode. The assembly mode requires welding or bonding after elastic deformation is generated by tensioning the skin so as to meet the requirements of flatness and tightness of the skin, but the mode needs additional tensioning equipment, the skin has larger prestress after assembly, negative effects are generated on a roof framework body, and the metal skin is heavy in weight, low in corrosion resistance and high in cost; and the top skin covering piece can not effectively share the top load, when a power battery, an air conditioner and the like are assembled on the roof, the cross section and the wall thickness of the top framework section bar can be only increased, the mass of a vehicle is increased, and therefore, the energy consumption is increased, the braking distance is increased, and negative effects are brought to the safety of the whole vehicle.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a passenger train combined type combined material roof.

In order to solve the technical problem, the purpose of the utility model is to realize the following:

the utility model relates to a combined composite roof of a passenger car, which comprises roof modules with set quantity and fixed connection; the roof module comprises a module body with two ends bent downwards and a skirt edge positioned at the edge of the module body; the skirt edge is provided with a fixing hole;

the module main body comprises an upper composite material layer, a sandwich and a lower composite material layer; the sandwich is flame-retardant PVC closed-cell foam; the skirt edge is formed by extending an upper composite material layer and a lower composite material layer;

skirts between two adjacent roof modules are overlapped, and are sealed by adhesive at the overlapping position and fixed by a fixing bolt group; the outer sides of the adjacent two roof modules at the lap joint position are flat, and the inner sides of the adjacent two roof modules are provided with grooves.

On the basis of the above scheme and as a preferable scheme of the scheme: and the skirts are connected with two adjacent roof modules, and one of the skirts is stepped with the module body.

On the basis of the above scheme and as a preferable scheme of the scheme: the composite material used by the upper composite material layer and the lower composite material layer is a carbon fiber fabric and a glass fiber fabric which are paved in layers, and flame-retardant epoxy resin is poured.

On the basis of the above scheme and as a preferable scheme of the scheme: the roof module includes a first roof module, a second roof module, a third roof module, a fourth roof module, a fifth roof module, and a sixth roof module.

On the basis of the above scheme and as a preferable scheme of the scheme: holes for mounting a top air conditioner, a power battery, a ventilation fan or a skylight are formed in the fourth roof module and the sixth roof module.

The utility model has the advantages that: the utility model relates to a passenger train combination formula combined material roof comprises the roof module that combined material prepared, need rise when can solving skeleton roof skin assembly and draw and produce great prestressing force problem, has fabulous plane degree again. And the combined type roof made of the composite material is designed in a material function integrated manner, and the unique connecting structure and the blocking manner of the composite material roof assembly are convenient to adapt to the series of vehicle types with different lengths of the same roof arc line for use, have strong load capacity, provide wiring harnesses and LED lamp strip assembling grooves for the top interior trim, and improve the attractiveness of the vehicle. The invention is suitable for all passenger cars.

Drawings

FIG. 1 is an isometric view of a modular composite vehicle roof;

FIG. 2 is a top view of FIG. 1;

FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is an enlarged view of a portion of FIG. 3 at C;

FIG. 6 is an enlarged view of a portion of FIG. 4 at D;

fig. 7 is an isometric view of a third roof module;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a cross-sectional view taken along line E-E of FIG. 8;

FIG. 10 is an enlarged view of a portion of FIG. 9 at F;

FIG. 11 is an isometric view of a fourth roof module;

FIG. 12 is a top view of FIG. 11;

FIG. 13 is a sectional view taken along line H-H of FIG. 12;

FIG. 14 is an enlarged view of a portion of FIG. 13 at J;

FIG. 15 is a sectional view taken along line G-G of FIG. 12;

fig. 16 is a partial enlarged view at K in fig. 15.

The symbols in the figure illustrate the following: 1-a first roof module; 2-a second roof module; 3-a third roof module; 4-a fourth roof module; 5-a fifth roof module; 6-a sixth roof module; 7-set of anchor bolts; 8-skirt edge; 9-an upper composite layer; 10-a core layer; 11-a lower composite layer; 12-a connection hole; 13-mounting holes.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Examples

The present embodiment will be described in detail with reference to fig. 1 to 16. The embodiment relates to a combined composite roof of a passenger car, which comprises roof modules, a plurality of roof modules and a plurality of connecting rods, wherein the roof modules are fixedly connected; the roof module comprises a module body with two ends bent downwards and a skirt edge 8 positioned at the edge of the module body; the skirt edge 8 is provided with a fixing hole 12. The combined composite material roof has no metal outer skin of the roof, and can solve the problems that the metal roof framework skin structure has large self weight, construction needs special equipment such as an assembly welding mould, a tensioning machine and the like, and the manufacturing cost is high.

The roof modules are integrally formed in a combined mode, the problems that the skin of the metal framework skin structure does not bear force and is completely supported by the top metal framework can be solved, and the strength of the top assembly is improved.

The module main body comprises an upper composite material layer 9, a sandwich 10 and a lower composite material layer 11; the sandwich 10 is flame-retardant PVC closed-cell foam; the skirt edge 8 is formed by extending and compounding an upper composite material layer 9 and a lower composite material layer 11. The composite material of the integrated sandwich structure has good heat insulation effect, and can solve the problems that the top metal top skin is abnormal in drumming and easy to rust, the heat insulation effect of heat insulation foam laid in the next procedure is poor, the heat insulation foam is easy to peel off and the like.

Furthermore, the composite material used by the upper composite material layer and the lower composite material layer is a carbon fiber fabric and a glass fiber fabric which are paved in layers, and flame-retardant epoxy resin is poured. The number of layers of carbon fiber fabrics and glass fiber fabrics can be adjusted according to actual needs. The carbon fiber fabric and the glass fiber fabric which are set are laid at intervals according to the set number of layers and the set structure, a sandwich 10 is arranged between the upper composite material layer 9 and the lower composite material layer 11, and then the flame-retardant epoxy resin is poured, so that the carbon fiber fabric and the glass fiber fabric can be bonded together to form the roof with the set shape.

As shown in fig. 5, the skirts 8 between two adjacent roof modules are overlapped and sealed by an adhesive at the overlapped position, and fixed by the fixing bolt group 7 at the position of the fixing hole 12. The outer sides of the adjacent two roof modules at the lap joint position are flat, and the inner sides of the adjacent two roof modules are provided with grooves. This recess can provide pencil and LED lamp area assembly groove for the top interior trim, can promote the pleasing to the eye degree of vehicle. And the skirts connected with two adjacent roof modules, wherein one skirt 8 is stepped with the module body, the height of the step is equivalent to the thickness of the other skirt, and the other skirt 8 is flush with the surface of the module body. When two adjacent roof modules are connected, the surface of the whole combined composite roof can be smooth.

The composite material at the lap joint of two adjacent roof modules adopts the processes of glue joint and bolt joint, so that the fixing is firm, the sealing and vibration damping performance is good, the replacement is quick, and the maintenance is convenient.

The roof modules connected through the fixing bolt groups form the combined composite roof of the passenger car, and the roof is fixedly connected with a car body framework assembly through the fixing bolt groups at the positions of the fixing holes 12 of the corresponding skirt edges 8.

And the size of each roof module in the combined composite material roof needs to be manufactured in a blocking manner according to the position of the side wall force bearing upright column on the vehicle body framework assembly by combining the distribution of top air conditioners, power batteries, ventilation skylights and other equipment, so that the lap joint part of the combined composite material roof and the vehicle body framework assembly corresponds to the side wall force bearing upright column as much as possible to form a force bearing ring.

The modular car roof module is suitable for car roofs with equal sections, flat surfaces or different lengths with boss shapes and various assembling holes, and is wide in application range.

In the present embodiment, six roof modules are taken as an example for explanation. The roof module comprises a first roof module 1, a second roof module 2, a third roof module 3, a fourth roof module 4, a fifth roof module 5 and a sixth roof module 6.

The first roof module 1 and the second roof module 2 are fixed through the fixing bolt group 7 at the position of a connecting hole 12 on the skirt edge 8 on one side of the first roof module 1, and the skirt edge 8 connected with the first roof module 1 and the second roof module 2 is step-shaped and has a certain distance with the surface of the module body of the first roof module 1. The skirts 8 of the second roof module 2 are all level with the surface of the module body and the skirts 8 of the third roof module 3 are stepped with the surface of the module body of the roof. The skirts 8 of the fourth roof module 4 are all level with the surface of the module body and the skirt 8 of the fifth roof module 5 is stepped with the surface of the module body of the roof. The skirts 8 of the sixth roof module 6 are each flush with the surface of the module body. The arrangement is such that the outer surface of the combined composite material roof fixed by the fixing bolt sets 7 is flat.

In this embodiment, the fourth roof module and the sixth roof module are provided with holes for installing a roof air conditioner, a power battery, a ventilation fan or a skylight.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. A combined composite roof of a passenger car is characterized by comprising roof modules which are set in number and fixedly connected; the roof module comprises a module body with two downward bent ends and a skirt edge positioned at the edge of the module body; the skirt edge is provided with a fixing hole;

2. A modular composite passenger vehicle roof as claimed in claim 1, wherein the skirts connected to adjacent roof modules are stepped with one of the skirts being stepped with the module body.

3. The composite roof of claim 1, wherein the composite material used for the upper and lower composite material layers is a carbon fiber fabric and a glass fiber fabric which are layered and impregnated with a flame-retardant epoxy resin.

4. A modular composite passenger car roof according to claim 1, wherein the roof modules comprise a first roof module, a second roof module, a third roof module, a fourth roof module, a fifth roof module and a sixth roof module.

5. A composite passenger car roof as claimed in claim 4, wherein holes are provided in the fourth and sixth roof modules for mounting a top air conditioner, power battery, ventilation fan or sunroof.