CN210258573U - Hinge reinforcing structure for rear cover plate of automobile trunk - Google Patents

Abstract

The utility model relates to a car trunk back shroud hinge additional strengthening, including suitcase inner panel, suitcase planking and hinge reinforcing plate. The hinge reinforcing plate comprises a bending groove extending along the length direction of the hinge reinforcing plate and a pressing edge extending horizontally along the side wall of the bending groove. The inner plate of the trunk is provided with a sinking groove. The bending groove is arranged in the sinking groove. The bottom surface of the pressing edge is pressed against the inner plate of the trunk, and is fixedly connected in a spot welding mode. The top surface of the pressing edge is pressed against the outer plate of the luggage case. By adopting the technical scheme disclosed by the utility model, the rear cover plate of the automobile trunk forms a stress body which is mutually supported, so that the pulling force from the hinge is dispersed to the maximum extent, and thus, on one hand, the bulge and the phenomenon at the joint of the hinge are avoided; on the other hand, the rear cover plate of the automobile luggage has stronger stress, and ensures that the fit clearance of the rear cover plate of the automobile luggage relative to the surrounding automobile body covering part is controlled within a standard range.

Description

Hinge reinforcing structure for rear cover plate of automobile trunk

Technical Field

The utility model belongs to the technical field of the car body structure manufacturing technique and specifically relates to a car trunk back shroud hinge additional strengthening.

Background

In recent years, with the increasing competition of automobile market, each automobile manufacturer pays great attention to the research and development of the performance of the whole automobile. In most existing vehicle models, the trunk rear cover plate is connected with the vehicle body by means of a hinge. In the actual use process, the hinge joint is extremely easy to bulge, the appearance of the vehicle body is affected, in addition, the hinge joint needs to be correspondingly strengthened in order to ensure the fit clearance between the trunk rear cover plate and the peripheral vehicle body covering part and the service life of the trunk rear cover plate and ensure the relative position precision of the trunk rear cover plate after assembly. In the prior art, the reinforcement of the hinged connection is generally carried out in two ways: 1) the metal plates with different thicknesses are welded together in a splicing mode, the metal plates with larger thicknesses are arranged at the positions of the hinges, and the welding seams at the splicing positions are prone to cracking in the long-term use process; 2) in the hinge position (i.e. the inner side of the rear cover inner plate of the luggage case is attached to the whole reinforcing plate, the reinforcing plate needs a larger area and thickness in view of reducing the pressure value in the unit area of the rear cover inner plate of the luggage case and preventing the deformation. The two schemes inevitably increase the whole weight of the rear cover plate of the luggage case. Thus, a skilled person is urgently needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a structural design is simple, and the bodiness is less and can effectively improve joint strength's car trunk back shroud hinge additional strengthening.

In order to solve the technical problem, the utility model relates to a car trunk back shroud hinge additional strengthening, it includes suitcase inner panel, suitcase planking and hinge reinforcing plate. The hinge reinforcing plate is fixed in a cavity formed by buckling the inner trunk plate and the outer trunk plate. The hinge reinforcing plate comprises a bending groove extending along the length direction of the hinge reinforcing plate and a pressing edge extending horizontally along the side wall of the bending groove. The inner plate of the trunk is provided with a sinking groove. The bending groove is arranged in the sinking groove. The bottom surface of the pressing edge is pressed against the inner plate of the trunk, and is fixedly connected in a spot welding mode. The top surface of the pressing edge is pressed against the outer plate of the luggage case. And a bolt through hole is formed at the joint of the bending groove and the inner plate of the trunk and is used for connecting a hinge.

Furthermore, the automobile trunk rear cover plate hinge reinforcing structure also comprises a pressure equalizing plate which is attached to the side wall of the bending groove and is provided with a through hole corresponding to the position of the bolt through hole. The thickness of the pressure equalizing plate is controlled within 3 mm.

Furthermore, the automobile trunk rear cover plate hinge reinforcing structure further comprises a positioning structure. The positioning structure is at least two positioning holes which are arranged in the bending groove at intervals, and correspondingly, positioning pins which are matched with the positioning holes are fixed on the inner plate of the trunk.

Furthermore, a gap is formed between the bottom surface of the bending groove and the sinking groove, and the gap value is controlled to be 3-5 mm.

Further, the width of the pressing edge is not less than 5 mm.

Furthermore, lightening holes are formed in the bending grooves. And a plurality of reinforcing grooves are formed in the periphery of the lightening hole, and the side walls of the bending grooves extend all the way along the edge of the lightening hole.

Further, the suitcase inner panel and suitcase planking are aluminum alloy integrated stamping forming spare.

Furthermore, the hinge reinforcing plate is integrally in a 90-degree bending arc shape and is fixed at the bending transition position of the inner plate sideline of the trunk.

Further, the thickness of the inner plate of the luggage case is 1.5 mm. The thickness of the outer plate of the luggage case is 1.2 mm. The thickness of the hinge reinforcing plate is 2 mm.

Compared with the traditional structure form, in the technical scheme disclosed in the utility model, the hinge reinforcing plate is designed into the bending groove shape, its lateral wall is used for bearing the pulling force from the hinge, and its bending groove cover locates in the sinking groove of suitcase inner panel, in addition, it still realizes the further connection with the suitcase inner panel through pressing the limit, make car suitcase back shroud form an organic atress body that supports each other, thereby the pulling force from the hinge has been dispersed to the maximum extent, so, on the one hand, the hinge joint has been avoided from the source to take place the swell, even the phenomenon of ftractureing; on the other hand, the stress of the automobile luggage rear cover plate is enhanced, the fit clearance of the automobile luggage rear cover plate relative to the peripheral automobile body covering part is controlled within an allowable range, and the integral appearance of the automobile body is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the hinge reinforcing structure of the rear cover plate of the trunk of the utility model in a separated state.

Fig. 2 is a schematic view of the section of the middle trunk rear cover plate hinge reinforcing structure in the buckling state.

Fig. 3 is a schematic structural diagram of the inner plate of the trunk in the hinge reinforcing structure of the trunk back cover plate of the utility model.

Fig. 4 is a schematic structural view of the hinge reinforcing plate in the hinge reinforcing structure of the trunk lid of the present invention.

Fig. 5 is a position relationship diagram of the middle hinge reinforcing plate and the inner plate of the luggage case.

1, a luggage case inner plate; 11-sinking the groove; 2-trunk outer plate; 3-a hinge reinforcement plate; 31-bending the groove; 311-bolt through holes; 32-pressing against the edge; 33-lightening holes; 34-a reinforcement groove; 4-pressure equalizing plate; 41-through holes; 5-a positioning structure; 51-positioning holes.

Detailed Description

In the description of the present invention, it should be understood that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The following description is made in detail with reference to the specific embodiments, and fig. 1 shows the schematic diagram of the hinge reinforcement structure of the trunk back cover plate of the present invention in the separated state, it can be clearly seen that the trunk back cover plate of the present invention is composed of a trunk inner plate 1, a trunk outer plate 2 and a hinge reinforcement plate 3 disposed therebetween, and the three parts are all integrated stamping parts. On the premise that the structural strength meets the requirements, the aluminum alloy material is preferably selected to cater to the design concept of weight reduction of the whole vehicle. Fig. 2 shows the tangent plane schematic diagram of the middle trunk rear cover plate hinge reinforcing structure of the utility model in the buckling state, the shell is formed by the mutual buckling of the trunk inner plate 1 and the trunk outer plate 2, and the outer edges of the two attaching together are fixedly connected by the welding mode. A cavity structure is formed near the rear of the trunk lid of the vehicle, and the hinge reinforcement plate 3 is fixed in the cavity structure. The hinge reinforcing plate 3 comprises a bending groove 31 and a pressing edge 32, wherein the bending groove 31 extends along the length direction; the pressing edges 32 are horizontally extended from the opposite side walls of the bending groove 31 (as shown in fig. 4). Accordingly, a sink groove 11 is provided on the luggage inner panel 1, the width of which is adapted to the aforementioned bending groove 31 (as shown in fig. 3). The bending groove 31 is built in the sinking groove 11. The bottom surface of the pressing edge 32 abuts against the inner luggage case panel 1 and is fixedly connected by spot welding. The top surface of the abutting edge 32 abuts against the trunk outer panel 2. A bolt through hole 311 is formed at the joint of the bending groove 31 and the trunk inner plate 1 for connecting a hinge. In order to facilitate the arrangement of welding spots and improve the fixing reliability of the pressing edge 32 and the inner plate 1 of the luggage case, the width value of the pressing edge is not suitable to be less than 5 mm.

Compared with the traditional structure form, in the utility model discloses an among the technical scheme, hinge reinforcing plate 3 designs for bending the recess form, its lateral wall is used for bearing the pulling force that comes from the hinge, and its bending groove 31 cover is located in the sunken recess 11 of suitcase inner panel 1, in addition, it still realizes the further connection with suitcase inner panel 1 through pressing limit 32, make car suitcase back shroud form an organic atress body of mutual support, thereby the pulling force that comes from the hinge has been dispersed to the utmost, so, on the one hand, avoided the hinge joint to take place to swell from the source, even the phenomenon of ftractureing; on the other hand, the stress of the automobile luggage rear cover plate is enhanced, the fit clearance of the automobile luggage rear cover plate relative to the peripheral automobile body covering part is controlled within an allowable range, and the integral appearance of the automobile body is ensured.

It should be noted that, in order to improve the adhesion between the hinge reinforcing plate 3 and the inner panel 1 of the trunk as much as possible and prevent the occurrence of cold joint and weld cracking, a gap needs to be provided between the bottom surface of the bending groove 31 and the sinking groove 11, and the gap value is preferably controlled to be 3-5 mm.

In order to further reduce the stress value of the bolt through hole 311 area of the hinge reinforcing plate and prevent the bulge phenomenon, as a further optimization of the hinge reinforcing structure of the rear cover plate of the automobile trunk, the pressure equalizing plate 4 is additionally arranged. The specific arrangement mode is as follows: the pressure equalizing plate 4 is designed to be a flat plate structure, is attached to the side wall of the bending groove 31, and is provided with a through hole 41 (shown in fig. 5) corresponding to the bolt through hole 311. The thickness of the pressure equalizing plate 4 is controlled to be within 3mm, so that the tensile force generated by the hinge is further equalized.

Moreover, in order to make the above-mentioned equalizer plate 4's positioning process more swift, improve the precision of location, ensure the reliability of car trunk back shroud load performance, still need set up location structure 5, specifically be: the positioning structure 5 is at least two positioning holes 51 opened in the bending groove 31 and arranged at intervals, and correspondingly, positioning pins adapted to the positioning holes 51 are fixed on the inner luggage case panel 1.

Furthermore, lightening holes 33 may also be provided in the bent recesses 31. In view of the structural strength of the inner trunk panel 1, it is necessary to provide a plurality of reinforcement recesses 34 on the outer periphery of the lightening hole 33 and extend the side walls of the bent recesses along the edge of the lightening hole 33. The cross section of the reinforcing groove 34 is U-shaped, and the groove depth is controlled to be 2-3 times of the wall thickness of the inner plate 1 of the luggage case.

Finally, the hinge reinforcing plate 3 can be in a 90-degree bending arc shape as a whole and is fixed at the bending transition position of the sideline of the trunk inner plate 1 (namely, the 90-degree corner positions of the bottom frame and the side frame of the trunk inner plate 1), as shown in fig. 4 and 5, the force bearing performance of the tail part of the rear cover plate of the automobile trunk can be further improved.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A hinge reinforcing structure of a rear cover plate of an automobile trunk is characterized by comprising a trunk inner plate, a trunk outer plate and a hinge reinforcing plate; the hinge reinforcing plate is fixed in a cavity formed by buckling the trunk inner plate and the trunk outer plate; the hinge reinforcing plate comprises a bending groove extending along the length direction of the hinge reinforcing plate and a pressing edge extending horizontally along the side wall of the bending groove; a sinking groove is formed in the inner plate of the luggage case; the bending groove is arranged in the sinking groove; the bottom surface of the pressing edge is abutted against the inner plate of the trunk and is fixedly connected in a spot welding mode; the top surface of the pressing edge is abutted against the outer plate of the luggage case; and a bolt through hole is formed at the joint of the bending groove and the inner plate of the trunk and is used for connecting a hinge.

2. The automobile trunk rear cover plate hinge reinforcing structure according to claim 1, further comprising a pressure equalizing plate which is attached to the side wall of the bending groove and is provided with a through hole corresponding to the bolt through hole; the thickness of the pressure equalizing plate is controlled within 3 mm.

3. The trunk tailgate hinge-reinforcing structure according to claim 1, further comprising a positioning structure; the positioning structures are at least two positioning holes which are arranged in the bending groove at intervals; correspondingly, a positioning pin matched with the positioning hole is fixed on the inner plate of the luggage case.

4. The trunk tailgate hinge-reinforcing structure according to claim 1, wherein a gap is provided between the bottom surface of the bending groove and the sinking groove, and the gap value is controlled to be 3-5 mm.

5. The trunk tailgate hinge-reinforcing structure according to claim 1, wherein the width of the pressing edge is not less than 5 mm.

6. The vehicle trunk tailgate hinge reinforcing structure according to claim 1, wherein a lightening hole is provided in the bent recess; and a plurality of reinforcing grooves are formed in the periphery of the lightening hole, and extend to the side wall of the bending groove along the edge of the lightening hole.

7. The vehicle trunk tailgate hinge-reinforcing structure according to claim 1, wherein the trunk inner panel and the trunk outer panel are each an aluminum alloy integrally stamped-formed part.

8. The automobile trunk rear cover plate hinge reinforcing structure according to any one of claims 1 to 7, wherein the hinge reinforcing plate is in a 90-degree bent arc shape as a whole and is fixed at a bent transition of a trunk inner plate sideline.

9. The trunk tailgate hinge-reinforcing structure according to claim 8, wherein the thickness of the trunk inner panel is 1.5 mm; the thickness of the outer plate of the luggage case is 1.2 mm; the thickness of the hinge reinforcing plate is 2 mm.

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