阅读说明：本技术 一种乘用车的分体式车身结构 (Split type body structure of passenger car ) 是由 周和涛 于 2020-11-27 设计创作，主要内容包括：本发明公开了一种乘用车的分体式车身结构,包括上车体和下车体,所述上车体包括连接柱和车顶；所述连接柱的下端与下车体可拆分连接。本发明改变了一体式车身的结构,实现上车体和下车体可拆分的连接关系,上车体可以更换后,其寿命、材料、结构、成本、造型不再受限。具体地,上车体可以方便拆卸,便于用户定制化定制车身造型；上车体的寿命可以设计成与下车体不一样,这样利于降低成本；上车体的材料可以多样化,不再局限于跟下车体一样的材料；更好的满足市场化需求,比如成本可选可控：钢、铝、复核材料；上车体的结构形式也可以多样化,比如可以是钣金结构、弯管结构、复合材料结构等。(The invention discloses a split type body structure of a passenger car, which comprises an upper body and a lower body, wherein the upper body comprises a connecting column and a roof; the lower end of the connecting column is detachably connected with the lower vehicle body. The invention changes the structure of the integrated vehicle body, realizes the detachable connection relationship between the upper vehicle body and the lower vehicle body, and the service life, the material, the structure, the cost and the shape of the upper vehicle body are not limited any more after the upper vehicle body can be replaced. Particularly, the upper vehicle body can be conveniently detached, so that a user can conveniently customize and customize the vehicle body shape; the service life of the upper vehicle body can be designed to be different from that of the lower vehicle body, so that the cost is reduced; the materials of the upper vehicle body can be diversified and are not limited to the same materials as the lower vehicle body; better satisfy market-oriented demand, for example the cost is optional controllable: steel, aluminum, a rechecking material; the structural form of the upper vehicle body can be diversified, for example, the upper vehicle body can be a sheet metal structure, a bent pipe structure, a composite material structure and the like.)

1. A split type body structure of a passenger car comprises an upper car body and a lower car body, wherein the upper car body comprises a connecting column and a car roof; the method is characterized in that: the lower end of the connecting column is detachably connected with the lower vehicle body.

2. The split body structure of a passenger vehicle according to claim 1, characterized in that: a plurality of connecting columns are arranged; a plurality of connecting columns are distributed along the circumference of the vehicle roof.

3. The split body structure of a passenger vehicle according to claim 2, characterized in that: the lower end of each connecting column is detachably connected with the lower vehicle body through a connecting piece.

4. The split body structure of a passenger vehicle according to claim 3, characterized in that: the connecting piece comprises a fixing plate connected to the lower end of the connecting column; the fixed plate is detachably connected with the lower vehicle body through a locking piece.

5. The split body structure of a passenger vehicle according to claim 4, wherein: the fixed plate is provided with a plurality of through holes, and the lower vehicle body is provided with threaded holes corresponding to the through holes one to one; the retaining member is bolt or screw, and the screw rod through the retaining member passes the through-hole and screws up in the screw hole that corresponds, and then makes fixed plate and detachable connection of lower automobile body.

6. The split body structure of a passenger vehicle according to claim 5, wherein: the plurality of through holes of each fixing plate are distributed along the circumferential direction of the fixing plate.

7. The split body structure of a passenger vehicle according to any one of claims 4 to 6, wherein: the lower end face of each fixed plate is provided with a downward positioning column, and the lower vehicle body is provided with positioning holes corresponding to the limiting columns one to one.

8. The split body structure of a passenger vehicle according to claim 7, wherein: the lower vehicle body is provided with a sinking groove matched with each fixing plate.

9. The split body structure of a passenger vehicle according to claim 8, wherein: the positioning holes and all the through holes which are positioned below the fixing plate are positioned in the sinking grooves which are positioned below the corresponding fixing plate.

10. The split body structure of a passenger vehicle according to any one of claims 1 to 6, wherein: the upper end of each connecting column is fixedly connected with the roof.

Technical Field

The invention relates to the technical field of automobile manufacturing, in particular to a split type automobile body structure of a passenger car.

Background

The structural design of the vehicle body of the current passenger vehicle is an integral bearing structure, namely the upper part and the lower part of the vehicle body are assembled and welded into a whole through stamping sheet metal parts. The upper vehicle body refers to a vehicle roof and connecting columns (the connecting columns refer to an A column, a B column and a C column, and only the A column and the C column are arranged on part of the vehicle), and the lower vehicle body refers to a floor part. However, the integral body structure and the manufacturing mode are not suitable for meeting the requirement of personalized and flexible customization of automobile user shapes in the future, and limit the adoption of various materials or structural modes of the upper automobile body and the process flow of integral assembly.

Disclosure of Invention

Aiming at the defects in the prior art, the structure of the integrated vehicle body is changed, the detachable connection relationship between the upper vehicle body and the lower vehicle body is realized, and the aim that the upper part of the vehicle body and the inner and outer decoration shapes can be flexibly customized is fulfilled; the lower end of the connecting column is detachably connected with the lower vehicle body.

The invention has the beneficial effects that:

adopt last automobile body and detachable connection structure of lower automobile body, on the one hand, go up the automobile body and can change the back, its life-span, material, structure, cost, molding no longer are restricted. Particularly, the upper vehicle body can be conveniently detached, so that a user can conveniently and custom replace the vehicle body shape; the service life of the upper vehicle body can be designed to be different from that of the lower vehicle body, so that the cost is reduced; the materials of the upper vehicle body can be diversified and are not limited to the same materials as the lower vehicle body; better satisfy market-oriented demand, for example the cost is optional controllable: steel, aluminum, a rechecking material; the structural form of the upper vehicle body can be diversified, for example, the upper vehicle body can be a sheet metal structure, a bent pipe structure, a composite material structure and the like;

on the other hand, the whole vehicle production and assembly process is not limited: the automobile can be produced like a traditional passenger car, and after the upper car body and the lower car body are assembled together, other accessories such as internal and external decorations, electronic appliances and the like are installed. Or the upper vehicle body and the lower vehicle body are taken as accessories carried by the independent systems respectively and then are assembled, and finally the upper vehicle body and the lower vehicle body are combined and installed. The method has the advantages of small limitation of production field, improved efficiency, shortened quality control flow and simpler operation.

Therefore, the detachable innovative structure design mode and the production process mode of the upper vehicle body and the lower vehicle body can be more suitable for the personalized customization requirements of future users.

Preferably, the connecting column is provided with a plurality of connecting columns; a plurality of connecting columns are distributed along the circumference of the vehicle roof.

The structure is the same as that of the existing vehicle body, four or six connecting columns are adopted, and the number of the connecting columns can be selected according to specific vehicle types.

Preferably, the lower end of each connecting column is detachably connected with the lower vehicle body through a connecting piece.

Preferably, the connecting member includes a fixing plate connected to the lower end of the connecting column; the fixed plate is detachably connected with the lower vehicle body through a locking piece.

The fixed plate is used for improving the contact area of the joint, improving the connection strength of the joint and meeting the strength requirement of the automobile body.

Preferably, the fixing plate is provided with a plurality of through holes, and the lower vehicle body is provided with threaded holes corresponding to the through holes one to one; the retaining member is bolt or screw, and the screw rod through the retaining member passes the through-hole and screws up in the screw hole that corresponds, and then makes fixed plate and detachable connection of lower automobile body.

The installation process comprises the following steps: the fixing plate is fastened and connected with the lower vehicle body by bolts or screws. Otherwise, in the disassembling process, after the bolt or the screw is unscrewed, the upper vehicle body is separated from the lower vehicle body. The whole dismounting process is simple, and the operation difficulty is low.

Preferably, the plurality of through holes of each of the fixing plates are distributed along a circumferential direction of the fixing plate.

Preferably, the lower end face of each fixing plate is provided with a downward positioning column, and the lower vehicle body is provided with positioning holes corresponding to the limiting columns one to one.

Preferably, the lower vehicle body is provided with a sinking groove adapted to each fixing plate.

The quick location installation of spliced pole can be realized to reference column and locating hole, and reference column and locating hole and fixed plate and heavy groove can promote the ability of resisting shear stress of junction in addition, further promote the intensity of junction.

Preferably, the positioning hole and all the through holes below the fixing plate are located in the sinking groove below the corresponding fixing plate.

Preferably, the upper end of each connecting column is fixedly connected with the vehicle roof.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram of the present embodiment;

fig. 2 is a schematic structural view of the joint between the connecting column and the lower body in this embodiment.

In the attached drawings, an upper vehicle body 1, a lower vehicle body 2, a connecting column 3, a vehicle roof 4, a fixing plate 5, a through hole 6, a threaded hole 7, a bolt or screw 8, a positioning column 9, a positioning hole 10 and a sinking groove 11.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

As shown in fig. 1, the present embodiment provides a split body structure of a passenger vehicle, which includes an upper body 1 and a lower body 2, wherein the upper body 1 includes a connection pillar 3 and a roof 4. Wherein, the connecting columns 3 are four, six, etc., and all the connecting columns 3 are distributed along the circumferential direction of the vehicle roof 4. Generally, if four connection columns 3 are used, the four connection columns 3 are located at the left and right of the front edge and the left and right of the rear edge of the roof 4, respectively. If six connection columns 3 are used, the six connection columns 3 are respectively located at the left and right of the front side of the roof 4, the left and right of the middle part of the roof 4, and the left and right of the rear side, and are selected according to the specific vehicle type. Every the upper end of spliced pole 3 all with roof 4 fixed connection, and every the lower extreme of spliced pole 3 and the equal detachable connection of lower automobile body 2, but the concrete connection structure of split as follows:

as shown in fig. 2, the lower end of each connecting column 3 is detachably connected with the lower vehicle body 2 through a connecting piece. Further, the connecting member includes a fixing plate 5 connected to the lower end of the connecting column 3; the fixed plate 5 is detachably connected with the lower vehicle body 2 through a locking piece. The lower extreme of spliced pole 3 and the up end fixed connection of fixed plate 5, fixed plate 5's effect lies in improving the area of contact of junction, promotes the joint strength of junction, satisfies the intensity requirement of automobile body. The fixing plate 5 is provided with four through-holes 6, and the four through-holes 6 of the fixing plate 5 are distributed along the circumferential direction of the fixing plate 5 such that the four through-holes 6 are rectangularly distributed. The lower vehicle body 2 is provided with threaded holes 7 corresponding to the through holes 6 one by one. The retaining member is bolt or screw 8, and the screw rod through the retaining member passes through-hole 6 and screws up in corresponding screw hole 7, and then makes fixed plate 5 and lower vehicle body 2 detachably be connected.

In order to improve the strength of the joint between the connecting column 3 and the lower vehicle body 2, the lower end face of the fixing plate 5 is provided with downward positioning columns 9, and the lower vehicle body 2 is provided with positioning holes 10 corresponding to each limiting column one by one. The lower vehicle body 2 is provided with a sinking groove 11 adapted to each fixing plate 5. The positioning holes 10 and all the through holes 6 below the fixing plate 5 are located in the corresponding sinking grooves 11 below the fixing plate 5. In the specific installation process: the fixing plate 5 is fastened to the lower body 2 by bolts or screws 8. Otherwise, in the disassembling process, after the bolt or the screw 8 is unscrewed, the upper vehicle body 1 and the lower vehicle body 2 are separated. The whole dismounting process is simple, and the operation difficulty is low. And in the installation, reference column 9 and locating hole 10 can realize the quick location installation of spliced pole 3, and reference column 9 and locating hole 10 and fixed plate 5 and heavy groove 11 can promote the ability of resisting shear stress of junction in addition, further promote the intensity of junction.

The upper vehicle body 1 and the lower vehicle body 2 are structurally designed to be in a detachable assembly type, so that the purpose that the upper vehicle body 1 and the interior and exterior trim shapes can be flexibly replaced is achieved, the material and the structural mode of the upper vehicle body 1 are not limited any more, the whole vehicle assembly process flow is more flexible, and the manufacturing cost is reduced possibly.

The production process of the whole vehicle is as follows:

the method comprises the following steps of firstly, assembling parts of accessories carried by a lower vehicle body, such as a suspension system, a power transmission system, a braking system, a steering system, an air conditioning system and the like.

And secondly, pre-assembling the accessories of the upper vehicle body bearing part, such as a windshield, a ceiling, a lighting system, an interior rearview mirror, a handrail and the like.

And thirdly, aligning the connection positions of the upper vehicle body and the lower vehicle body which are pre-assembled, and connecting and locking the upper vehicle body and the lower vehicle body by using bolts or screws.

A fourth step of: and finishing the installation of the rest vehicle door, the inner and outer ornaments and the like.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.