CN218287424U - Coupling mechanism and vehicle - Google Patents

Abstract

The utility model provides a connecting mechanism and a vehicle, which belong to the field of vehicle manufacturing, wherein the connecting mechanism comprises a threshold assembly, a torsion box and a battery pack; the battery pack includes: the device comprises a battery module, a cover plate, longitudinal beams and cross beams; the longitudinal beam comprises a first connecting part; and a second connecting part integrally formed with the first connecting part; the first connecting part is fixedly connected with the cross beam and encloses an accommodating cavity for installing the battery module; the cover plate covers the accommodating cavity and is detachably connected with the first connecting part and the cross beam; the threshold assembly is detachably connected with the first connecting part and the second connecting part; the torsion box is detachably connected with the cross beam. The technical problem of among the prior art, when battery package and automobile body assembled, the safety clearance need be reserved with the battery package to preceding floor to encroach on the riding space of vehicle is solved.

Description

Coupling mechanism and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle manufacturing and specifically relates to a coupling mechanism and vehicle are related to.

Background

In a new energy automobile, a battery pack is an indispensable part of the new energy automobile as a power source.

At present, an electric vehicle battery pack and a vehicle body belong to two different whole vehicle submodules. During assembly of the battery pack into a vehicle, it is often necessary to secure the battery pack with bolts or other fastening members. For example: referring to fig. 1, in the prior art, a connection mechanism for a vehicle body and a battery pack is provided, a front floor assembly and a vehicle body side assembly are welded to form a body-in-white assembly, and then the battery pack is fixedly connected to a vehicle body bottom plate in the body-in-white assembly through bolts in a final assembly workshop, so as to fix the battery pack and the vehicle body.

However, when the battery pack and the vehicle body are assembled in the prior art, a safety gap needs to be reserved between the front floor and the battery pack, so that the riding space of the vehicle is occupied.

Based on this, the utility model is especially provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a coupling mechanism and battery package to in solving prior art, when battery package and automobile body assembled, the safety clearance need be reserved with the battery package to the preceding floor, thereby encroach on the technical problem in the space of taking of vehicle.

According to the utility model discloses an aspect provides a coupling mechanism, and this coupling mechanism includes: the method comprises the following steps: the device comprises a threshold assembly, a torque box and a battery pack; the battery pack includes: the device comprises a battery module, a cover plate, longitudinal beams and cross beams; the longitudinal beam comprises a first connecting part; and a second connecting part integrally formed with the first connecting part; the first connecting part is fixedly connected with the cross beam and encloses an accommodating cavity for installing the battery module; the cover plate covers the accommodating cavity and is detachably connected with the first connecting part and the cross beam; the threshold assembly is detachably connected with the first connecting part and the second connecting part; the torsion box is detachably connected with the cross beam.

Specifically, in the present application, the connection mechanism includes: battery package, threshold assembly and torsion box. The battery pack comprises a battery module, a cover plate, longitudinal beams and cross beams. The longitudinal beam is fixedly connected with the cross beam to form an accommodating cavity in a surrounding manner, and the accommodating cavity can be used for installing a battery module; the chamber is held in the apron cover to the both ends that the apron is relative can be dismantled with the longeron and be connected, and relative both ends can be dismantled with the crossbeam in addition and be connected, can realize the sealed effect of battery package.

In addition, the apron of battery package and the bottom plate integration of car set up in this application, utilize the apron of battery package to replace the bottom plate of car promptly to can dismantle threshold assembly and battery package longeron and be connected, torsion box can dismantle with the crossbeam and be connected, and threshold assembly can dismantle with first connecting portion and second connecting portion and be connected. Compared with the prior art that after the vehicle body side wall assembly and the front floor assembly are welded and then connected with the battery pack, the connecting mechanism can eliminate the safety gap between the vehicle body front floor and the battery pack, so that the riding space of passengers in the vehicle is enlarged. Moreover, in the prior art, the double-layer protection structure of the front floor of the vehicle body and the upper cover of the battery pack is adopted, so that the weight of the whole vehicle is increased, the bottom plate of the vehicle is cancelled, namely, the gravity of the bottom plate of the vehicle is reduced, the weight of the whole vehicle is reduced, and the cruising mileage of the vehicle is increased.

In an alternative embodiment, the threshold assembly and the torque box are respectively formed in a modular and integrated mode, so that platform universality and interchangeability can be improved.

Preferably, the adhesive also comprises structural adhesive; the structural adhesive is arranged on the first connecting portion and the cross beam and used for sealing the battery pack.

The connecting mechanism further comprises structural adhesive, the structural adhesive is arranged on the edges of the longitudinal beam and the cross beam, and on the basis of the relation between the battery pack and the threshold assembly and the torsion box, the structural adhesive can play a circle of sealing effect between the longitudinal beam and the threshold assembly and a circle of sealing effect between the cross beam and the torsion box.

Preferably, the first connecting part is provided with a first glue coating groove; a second glue coating groove is formed in the cross beam; the end part of the beam is fixedly connected with the end part of the first connecting part in an inclined way, so that the first glue coating groove and the second glue coating groove are communicated with each other and are vertical to each other; the structural adhesive is respectively arranged in the first adhesive coating groove and the second adhesive coating groove.

Be provided with first rubber coating groove on the border of first connecting portion, be provided with second rubber coating groove on the border of crossbeam, the structural glue sets up in first rubber coating groove and second rubber coating groove. The tip of first connecting portion leans out the setting, and the tip leanin of crossbeam sets up, and when the tip of stringer and the tip fixed connection of crossbeam, the tip of the two can laminate completely to make first rubber coating groove and second rubber coating groove communicate each other, and perpendicular, thereby reach the in-process of scribbling the structure and glue, the continuous effect of connection is glued to the structure, and then has increased the sealed effect of battery package more effectively.

The first glue coating grooves and the longitudinal beams are arranged in parallel in the direction perpendicular to the cross beam, the lengths of the first glue coating grooves and the longitudinal beams are the same, and the first glue coating grooves are fully coated with structural glue; the second glue coating grooves and the cross beam are arranged in parallel in the direction perpendicular to the longitudinal beam, the length of the second glue coating grooves and the length of the cross beam are the same, and the second glue coating grooves are fully coated with structural glue.

In an alternative embodiment, the cross beam is a rectangular cavity structure with two inwardly inclined ends, and the longitudinal beam is a rectangular cavity structure with two outwardly inclined ends.

Preferably, the end part of the beam is provided with a first inclined surface which is obliquely arranged; the end part of the first connecting part is provided with a second inclined surface matched with the first inclined surface; the first inclined plane and the second inclined plane are connected.

The end part of the beam is a first inclined surface which is arranged in an inward inclined manner; the tip of first connecting portion is the second inclined plane that leans out the setting, the mutual adaptation of first inclined plane and second inclined plane, and the two fixed connection, has laid a plurality of first slope incisions on first inclined plane, has laid a plurality of second slope incisions with first slope mouth looks adaptation on the second inclined plane, after first inclined plane and second inclined plane fixed connection, first slope mouth docks with second slope mouth. Through the mode that sets up like this, can increase the connection area effectively, improve the joint strength of crossbeam and longeron.

Preferably, the second connecting portion extends outward in the Y direction; the first connecting part and the second connecting part are respectively provided with a first connecting hole sleeve; the threshold assembly is detachably connected with the first connecting portion and the second connecting portion through the first connecting hole sleeve respectively.

The longeron includes first connecting portion and second connecting portion, first connecting portion and second connecting portion integrated into one piece, and the second connecting portion outwards extends along Y to the direction. The Y direction is a direction perpendicular to the side wall of the longitudinal beam where the inclined surface is not provided, that is, the second connection portion extends outward perpendicular to the side wall where the inclined surface is not provided. All be provided with first connecting hole sleeve on first connecting portion and second connecting portion, the threshold assembly can be dismantled with first connecting portion and second connecting portion respectively through first connecting hole sleeve and be connected. This application is connected the threshold assembly with the first connecting portion and the second connecting portion of longeron respectively, has increased the connection position to the joint strength of threshold assembly and longeron has been increased more effectively.

Preferably, the rocker assembly includes a rocker outer panel; the sill inner plate is fixedly connected with the sill outer plate; the top of the inner threshold plate is connected with a first connecting part through a corresponding first connecting hole sleeve; the bottom of the inner plate of the threshold is connected with the second connecting part through the corresponding first connecting sleeve by bolts.

The threshold assembly comprises a threshold outer plate and a threshold inner plate, and the threshold outer plate is fixedly connected with the threshold inner plate. The structure can be adapted to the installation of a battery pack longitudinal beam, namely, the top of the doorsill inner plate is connected with the first connecting part through the first connecting hole sleeve, and the bottom of the doorsill inner plate is connected with the second connecting part through the first connecting hole sleeve. Due to the fact that the bolt connection has the advantages of being simple in structure and convenient to assemble and disassemble, when the battery pack needs to be replaced, the battery pack and the threshold assembly can be assembled or disassembled conveniently only by disassembling the parts connected through the bolt.

In an alternative embodiment, the bolt connection may be a bolt and nut connection, or other connection methods, and the like, and specific details of which components are connected are not described herein, and can be implemented by those skilled in the art.

Preferably, the cross beam is provided with a second connecting hole sleeve; the torque box is provided with a connecting transverse plate and a connecting vertical plate which is integrally formed with the connecting transverse plate; the connecting transverse plate is connected with the cross beam bolt through the second connecting hole sleeve.

The cross beam is provided with a second connecting hole sleeve, the torque box is provided with a connecting transverse plate and a connecting vertical plate, and the connecting transverse plate and the connecting vertical plate are integrally formed to form a groove-shaped structure. The connecting transverse plate and the cross beam are connected through the second connecting hole sleeve by bolts, and it should be noted that when the connecting transverse plate and the cross beam are connected through the second connecting hole sleeve by bolts, the cross beam is in a groove-shaped structure, and the connecting transverse plate covers the cross beam. Through the mode that sets up like this, can make crossbeam and torsion box be connected more stable.

Preferably, the bottom of the connecting transverse plate is provided with a sealing surface matched with the second glue coating groove.

The bottom of the connecting transverse plate is a part where the connecting transverse plate is attached to the cross beam nut tube, when the connecting transverse plate is connected to the cross beam through bolts, the connecting transverse plate is connected with the cross beam nut tube through the contact part, the sealing surface matched with the second glue coating groove is arranged on the part, and the sealing effect of the battery pack can be effectively achieved.

Preferably, the length of the second connection portion in the X direction is the same as the length of the first connection portion in the X direction.

The second connecting portion has the same length in the X direction as the first connecting portion. The X direction is a direction parallel to the side wall of the side member between the two first inclined surfaces. This application adaptation is in the connection between threshold assembly and the longeron, sets up the same first connecting portion of X direction length and the stability between threshold assembly and the longeron can be guaranteed more effectively to the second connecting portion.

According to a second aspect of the present invention, there is provided a vehicle comprising the connecting mechanism of the first aspect described above.

The connecting mechanism is assembled in the vehicle, and the connecting mechanism has the characteristics of light weight and small occupied space, so that the whole vehicle weight of the vehicle can be effectively reduced, and the endurance mileage is improved.

In addition, the upper vehicle body platform and the lower vehicle body platform are assembled in a modularized mode, namely the modularized threshold assembly and the modularized torsion box can improve the platform universality, are suitable for vehicles of different vehicle types, and do not need to redesign and develop a vehicle body structure when being matched with a new vehicle type.

To sum up, this application utilizes the apron of battery package to replace the front floor of car, when reducing whole car quality, can also enlarge the space of taking to, can dismantle with the longeron through the threshold assembly and be connected, the mode of connection can be dismantled to torque box and crossbeam, can promote the reliability of connecting and the quick change effect of each part. The technical problem of among the prior art, when battery package and automobile body assembled, the safety clearance need be reserved with the battery package to preceding floor to encroach on the riding space of vehicle is solved.

In addition, the structural adhesive is arranged at the positions where the threshold assembly and the torsion box are respectively connected with the battery pack, so that the sealing of one circle of the battery pack can be realized, and the air tightness of the whole vehicle 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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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 structural view of a conventional vehicle body provided in the prior art;

fig. 2 is a schematic structural diagram of a connection mechanism according to an embodiment of the present invention;

fig. 3 is an exploded view of a connection mechanism according to an embodiment of the present invention;

FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;

fig. 6 is a schematic view of a connection mechanism according to an embodiment of the present invention;

fig. 7 is a schematic view of a connection mechanism according to another embodiment of the present invention;

fig. 8 is a schematic view of a connection mechanism according to another embodiment of the present invention;

FIG. 9 is a schematic view of the structure of the lower body platform; and

fig. 10 is a schematic structural view of the upper and lower vehicle body platforms.

In the above figures, the list of parts represented by the various reference numerals is as follows:

1. a threshold assembly; 2. a torque box; 3. a battery pack; 4. structural adhesive;

101. a rocker inner panel; 102. a threshold outer plate;

201. a sealing surface; 202. connecting the transverse plates; 203. connecting a vertical plate;

301. a cover plate; 302. a stringer; 303. a cross beam;

3021. a first glue coating groove; 3022. a second inclined surface; 3023. a first connection portion; 3024. a second connecting portion; 3025. a first connection hole sleeve; 3031. a second glue coating groove; 3032. a first inclined surface; 3033. a second attachment bore sleeve.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Referring to fig. 2 to 10, in an embodiment of the present invention, the connecting mechanism includes: the device comprises a threshold assembly 1, a torque box 2 and a battery pack 3; the battery pack 3 includes: a battery module, a cover plate 301, longitudinal beams 302 and cross beams 303; stringer 302 includes a first connection 3023; and a second connection portion 3024 integrally formed with the first connection portion 3023; the first connecting part 3023 is fixedly connected with the cross beam 303 and encloses an accommodating cavity for installing a battery module; the cover plate 301 covers the accommodating cavity and is detachably connected with the first connecting part 3023 and the cross beam 303; the threshold assembly 1 is detachably connected with the first connecting part 3023 and the second connecting part 3024; the torsion box 2 is detachably connected with the cross beam 303.

As a further preferred embodiment, on the basis of the above-mentioned solution, the specific examples of the present invention may further include one or more of the following additions or combinations;

the connecting mechanism also comprises structural adhesive 4; the structural adhesive 4 is provided on the first connection portion 3023 and the cross member 303, and is used to seal the battery pack 3;

a first glue coating groove 3021 is formed in the first connecting portion 3023; a second glue spreading groove 3031 is arranged on the cross beam 303; the end part of the cross beam 303 is obliquely and fixedly connected with the end part of the first connecting part 3023, so that the first glue groove 3021 and the second glue groove 3031 are communicated and vertical to each other; the structural adhesive 4 is respectively arranged in the first adhesive coating groove 3021 and the second adhesive coating groove 3031;

the end of the beam 303 has a first inclined surface 3032 arranged obliquely; the end of the first connection portion 3023 has a second inclined surface 3022 matching the first inclined surface 3032; the first inclined surface 3032 is connected with the second inclined surface 3022;

the second connection portion 3024 extends outward in the Y direction; the first connection part 3023 and the second connection part 3024 are respectively provided with a first connection hole sleeve 3025; the threshold assembly 1 is detachably connected with the first connection part 3023 and the second connection part 3024 through the first connection hole sleeve 3025;

the rocker assembly 1 includes a rocker outer panel 102; a rocker inner panel 101 fixedly connected to the rocker outer panel 102; the top of the sill inner panel 101 is bolted to the first connection section 3023 through the corresponding first connection hole sleeve 3025; the bottom of the sill inner 101 is bolted to the second connection 3024 through the corresponding first connection hole sleeve 3025;

a second connecting hole sleeve 3033 is arranged on the cross beam 303; the torque box 2 is provided with a connecting transverse plate 202 and a connecting vertical plate 203 which is integrally formed with the connecting transverse plate 202; the connecting transverse plate 202 is in bolt connection with the cross beam 303 through a second connecting hole sleeve 3033;

the bottom of the connecting transverse plate 202 is provided with a sealing surface 201 matched with the second glue coating groove 3031;

the length of the second connection portion 3024X is the same as the length of the first connection portion 3023X.

In another particular embodiment provided by the present disclosure, a vehicle is provided that includes a coupling mechanism.

In one specific embodiment of the present invention, the connecting mechanism comprises: battery package 3, threshold assembly 1 and torsion box 2. The battery pack 3 includes a cover plate 301, longitudinal beams 302, and cross beams 303. The longitudinal beams 302 and the cross beams 303 are fixedly connected to form an accommodating cavity in a surrounding manner, and the accommodating cavity can be used for accommodating a battery module; the cover plate 301 covers the accommodating cavity, the two opposite ends of the cover plate 301 are detachably connected with the longitudinal beams 302, the two opposite ends are detachably connected with the transverse beams 303, the cover plate 301 of the battery pack 3 and the bottom plate of the automobile are integrally arranged, namely, the cover plate 301 of the battery pack 3 is used for replacing the bottom plate of the automobile, the doorsill assembly 1 is detachably connected with the longitudinal beams 302 of the battery pack 3, the torsion box 2 is detachably connected with the transverse beams 303, and compared with the prior art that after an automobile body side wall assembly and a front floor assembly are welded and then connected with the battery pack 3, the connecting mechanism can eliminate the safety gap between the front floor of an automobile body and the battery pack 3, so that the riding space of passengers in the automobile is enlarged. Moreover, in the prior art, the double-layer protection structure of the front floor of the vehicle body and the upper cover of the battery pack 3 is adopted, so that the weight of the whole vehicle is increased, the bottom plate of the vehicle is cancelled, namely, the gravity of the bottom plate of the vehicle is reduced, the weight of the whole vehicle is reduced, and the cruising mileage of the vehicle is increased.

In an alternative embodiment, the torsion boxes 2 are respectively formed integrally in a modularized mode, so that platform universality and interchangeability can be improved.

In an alternative embodiment, as shown in fig. 2 to 10, the connection mechanism further includes a structural adhesive 4, the structural adhesive 4 is disposed on the edges of the longitudinal beam 302 and the transverse beam 303, and the structural adhesive 4 can seal a periphery between the longitudinal beam 302 and the threshold assembly 1 and a periphery between the transverse beam 303 and the torsion box 2 based on the relationship between the battery pack 3 and the threshold assembly 1 and the torsion box 2.

In an alternative embodiment, a first glue coating groove 3021 is disposed on the edge of the longitudinal beam 302, a second glue coating groove 3031 is disposed on the edge of the cross beam 303, and the structural glue 4 is disposed in the first glue coating groove 3021 and the second glue coating groove 3031. The tip of longeron 302 leans out the slope setting, and the tip leanin of crossbeam 303 sets up, and when the tip of longeron 302 and the tip fixed connection of crossbeam 303, the tip of the two can laminate completely to make first rubber coating groove 3021 and second rubber coating groove 3031 communicate each other, and perpendicular, thereby reach the in-process of scribbling the structure and gluing 4, the continuous effect is connected to the structure glue 4.

It should be noted that the first glue grooves 3021 and the longitudinal beams 302 are arranged in parallel along a direction perpendicular to the cross beam 303, and the lengths of the first glue grooves 3021 and the longitudinal beams are the same, and the first glue grooves 3021 are filled with the structural glue 4; the second glue coating grooves 3031 and the cross beam 303 are arranged in parallel in the direction perpendicular to the longitudinal beam 302, the lengths of the second glue coating grooves 3031 and the cross beam 303 are the same, and the structural glue 4 is coated in the second glue coating grooves 3031.

In an alternative embodiment, as shown in fig. 2 and 8, the cross beam 303 is a rectangular cavity structure with two inward inclined ends, and the longitudinal beam 302 is a rectangular cavity structure with two outward inclined ends.

As shown in fig. 2, 3, 7 and 8, in an alternative embodiment, the end of the beam 303 is a first inclined surface 3032 disposed obliquely inward; the end of the longitudinal beam 302 is a second inclined surface 3022 which is obliquely arranged outwards, the first inclined surface 3032 and the second inclined surface 3022 are mutually matched and fixedly connected, a plurality of first inclined notches are distributed on the first inclined surface 3032, a plurality of second inclined notches which are matched with the first inclined openings are distributed on the second inclined surface 3022, and after the first inclined surface 3032 and the second inclined surface 3022 are fixedly connected, the first inclined openings are butted with the second inclined openings.

In a preferred embodiment, stringer 302 includes a first joint section 3023 and a second joint section 3024, the first joint section 3023 and the second joint section 3024 being integrally formed, the second joint section 3024 extending outwardly in the Y-direction. Here, the Y direction is a direction perpendicular to the side wall of the side member 302 where no inclined surface is provided, that is, the second connecting portion 3024 extends outward perpendicular to the side wall of the first connecting portion 3023 where no inclined surface is provided. The first connection portion 3023 and the second connection portion 3024 are both provided with a first connection hole sleeve 3025, and the threshold assembly 1 is detachably connected to the first connection portion 3023 and the second connection portion 3024 through the first connection hole sleeve 3025.

Referring to fig. 2 to 5, the rocker assembly 1 includes a rocker outer panel 102 and a rocker inner panel 101, and the rocker outer panel 102 and the rocker inner panel 101 are fixedly connected. The inner sill plate 101 is arranged inwards along the direction of the battery pack 3, and the bottom of the outer sill plate 102 protrudes out of the inner sill plate 101, so that the structure can be adapted to the installation of the longitudinal beam 302 of the battery pack 3, namely, the inner sill plate 101 is in bolted connection with the first connecting part 3023 through the first connecting hole sleeve 3025, and the inner sill plate 101 is in bolted connection with the second connecting part 3024 through the first connecting hole sleeve 3025. Due to the fact that the bolt connection has the advantages of being simple in structure and convenient to assemble and disassemble, when the battery pack 3 needs to be replaced, the battery pack 3 and the threshold assembly 1 can be assembled or disassembled conveniently only by disassembling parts connected through the bolt.

In an alternative embodiment, the bolt connection may be a bolt and nut connection, or other connection methods, and the like, and specific details of which components are connected are not described herein, and can be implemented by those skilled in the art.

As shown in fig. 2, 3, and 4, in an alternative embodiment, the first connecting portion 3023 is bolted to the rocker inner panel 101, the second connecting portion 3024 is bolted to the rocker inner panel 101, and the bolt length of the first connecting portion 3023 is longer than the bolt length of the second connecting portion 3024. The bolt at the first connection portion 3023 can replace a part of the vehicle body side member, increasing the mounting strength.

As shown in fig. 2, 3 and 4, in an alternative embodiment, the longitudinal beam 302 and the transverse beam 303 are arranged perpendicular to each other, and a part of the top of the first connecting portion 3023 of the longitudinal beam 302 is detachably connected to the cover plate 301, and the other part is detachably connected to the sill inner 101. In this way, the effect of sealing the battery pack 3 can be more effectively achieved.

In an alternative embodiment, as shown in fig. 2, 3 and 4, three first socket bores 3025 are provided on the second connection section 3024 and one first socket bore 3025 is provided on the first connection section 3023. The rocker inner plate 101 is provided with a connection point adapted to the first connection hole sleeve 3025 of the first connection portion 3023, and the rocker inner plate 101 is provided with a plurality of connection points adapted to the plurality of first connection hole sleeves 3025 of the second connection portion 3024.

In an alternative embodiment, as shown in fig. 2 to 4, the inner sill plate 101 has a rectangular cavity structure, and the sill assembly 1 includes a cavity structure formed by a plurality of inverted "U" shaped structures, so that the connection strength of the sill can be improved more effectively.

As shown in fig. 2 and 3, in an alternative embodiment, a second connecting hole sleeve 3033 is disposed on the cross beam 303, a connecting transverse plate 202 and a connecting vertical plate 203 are disposed on the torque box 2, and the connecting transverse plate 202 and the connecting vertical plate 203 are integrally formed to enclose a trough-shaped structure. The cross beam 202 and the cross beam 303 are connected by a bolt through the second connecting hole sleeve 3033, and it should be noted that when the cross beam 202 and the cross beam 303 are connected by a bolt through the second connecting hole sleeve 3033, the cross beam 303 is in a groove-shaped structure, and the cross beam 303 is covered by the cross beam 202.

In an alternative embodiment, as shown in fig. 3-9, the longitudinal beams 302 and the cross beams 303 are perpendicular to each other, and one part of the cross beams 303 is bolted to the connecting cross plate 202, and the other part is bolted to the cover plate 301 of the battery pack 3. In this way, the effect of sealing the battery pack 3 can be more effectively achieved.

As shown in fig. 2 and fig. 5, in an alternative embodiment, the bottom of the connecting transverse plate 202 is a portion where the connecting transverse plate 202 is attached to the cross beam 303, that is, when the connecting transverse plate 202 is bolted to the cross beam 303, the connecting transverse plate 202 contacts with the cross beam nut tube, and a sealing surface 201 matched with the second glue coating groove 3031 is provided at the portion, so that the sealing effect of the battery pack 3 can be more effectively achieved.

In an alternative embodiment, the X-direction length of the second connection portion 3024 is the same as the X-direction length of the first connection portion 3023. The X direction is a direction parallel to the side wall of the side member 302 between the two first inclined surfaces 3032. The connection between the threshold assembly 1 and the longitudinal beam 302 is adapted, and the stability between the threshold assembly 1 and the longitudinal beam 302 can be effectively ensured by arranging the first connecting part 3023 and the second connecting part 3024 which have the same length in the X direction.

Referring to fig. 2, 3, 9 and 10, in an alternative embodiment, a partial view of an upper and lower body platform is provided, which includes four torque boxes 2 and two threshold assemblies 1, two torque boxes 2 located on the same side are connected by a connecting plate, and the connecting cross plate 202 of each torque box 2 is connected with the cross beam 303 of the battery pack 3 by bolts. The two torsion boxes 2 on the same side are symmetrically arranged along the direction perpendicular to the cross beam 303 of the battery pack 3, the torsion boxes 2 at the two ends of the battery pack 3 are symmetrically arranged along the direction perpendicular to the longitudinal beam 302 of the battery pack 3, and the two torsion boxes 2 are symmetrically arranged along the direction perpendicular to the cross beam 303 of the battery pack 3.

In an optional embodiment, the connecting mechanism is assembled in the vehicle, and the connecting mechanism has the characteristics of light weight and small occupied space, so that the whole vehicle weight of the vehicle can be effectively reduced, and the endurance mileage is improved.

In addition, the upper vehicle body platform and the lower vehicle body platform are assembled in a modularized mode, namely the modularized threshold assembly 1 and the modularized torsion box 2 can improve the universality of the platforms, are suitable for vehicles of different vehicle types, and do not need to redesign and develop a vehicle body structure when being matched with a new vehicle type.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A coupling mechanism, comprising: the device comprises a threshold assembly, a torque box and a battery pack;

the battery pack includes: the device comprises a battery module, a cover plate, longitudinal beams and cross beams;

the stringer includes a first connection; and

a second connecting portion integrally formed with the first connecting portion;

the first connecting part is fixedly connected with the cross beam and encloses an accommodating cavity for installing the battery module;

the cover plate covers the accommodating cavity and is detachably connected with the first connecting part and the cross beam;

the threshold assembly is detachably connected with the first connecting part and the second connecting part;

the torsion box is detachably connected with the cross beam.

2. The coupling mechanism of claim 1, further comprising a structural adhesive;

the structural adhesive is arranged on the first connecting portion and the cross beam and used for sealing the battery pack.

3. The connecting mechanism according to claim 2, wherein the first connecting portion is provided with a first glue coating groove;

a second glue coating groove is formed in the cross beam;

the end part of the beam is fixedly connected with the end part of the first connecting part in an inclined manner, so that the first glue coating groove and the second glue coating groove are communicated with each other and are vertical to each other;

the structural adhesive is respectively arranged in the first adhesive coating groove and the second adhesive coating groove.

4. The coupling mechanism of claim 3,

the end part of the beam is provided with a first inclined surface which is obliquely arranged;

the end part of the first connecting part is provided with a second inclined surface matched with the first inclined surface;

the first inclined surface and the second inclined surface are connected.

5. The coupling mechanism of claim 1,

the second connecting part extends outwards along the Y direction;

the first connecting part and the second connecting part are respectively provided with a first connecting hole sleeve;

the threshold assembly is detachably connected with the first connecting portion and the second connecting portion through the first connecting hole sleeve respectively.

6. The coupling mechanism of claim 5, wherein the rocker assembly includes a rocker outer plate; and

the threshold inner plate is fixedly connected with the threshold outer plate;

the top of the inner doorsill plate is connected with the first connecting part through the corresponding first connecting hole sleeve by bolts;

the bottom of the inner doorsill plate is connected with the second connecting part through the corresponding first connecting hole sleeve through a bolt.

7. The connecting mechanism of claim 3 wherein said cross member is provided with a second connecting bore sleeve;

the torque force box is provided with a connecting transverse plate and a connecting vertical plate which is integrally formed with the connecting transverse plate;

the connecting transverse plate is connected with the transverse beam bolt through the second connecting hole sleeve.

8. The connecting mechanism as recited in claim 7, wherein the bottom of the connecting cross plate is provided with a sealing surface that mates with the second glue slot.

9. The connecting mechanism according to claim 5, wherein the length of the second connecting portion in the X direction is the same as the length of the first connecting portion in the X direction.

10. A vehicle, characterized in that the vehicle comprises a connection according to any of claims 1-9.

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