CN217100203U - Vehicle body connecting structure and vehicle - Google Patents

Abstract

The utility model provides a vehicle body connecting structure and a vehicle, the utility model is used for connecting a rear floor and a vehicle body middle structure which are integrally formed by die casting, the middle part of the vehicle body is provided with a front floor rear cross beam, and the vehicle body connecting structure comprises a first connecting unit and a second connecting unit which are arranged between the rear floor and the front floor rear cross beam; the first connecting unit connects the rear floor and the front floor rear cross member together in the height direction of the vehicle body, and the second connecting unit connects the rear floor and the front floor rear cross member together in the length direction of the vehicle body. The utility model discloses an automobile body connection structure can link together back floor and preceding floor rear frame member respectively on automobile body direction of height and automobile body direction of height, does benefit to the joint strength who improves between back floor and the automobile body middle part, at the second linkage unit that automobile body length direction connects, when the vehicle rear portion bumps, can restrain the tendency of lifting on integrated into one piece's back floor to promote the security of collision.

Description

Vehicle body connecting structure and vehicle

Technical Field

The utility model relates to a vehicle spare part and technical field, in particular to automobile body connection structure. Additionally, the utility model discloses still relate to a vehicle that has this automobile body connection structure.

Background

With the wider application of new energy automobiles, the safety requirements of people on vehicles are higher and higher. The body is an important component of the vehicle, and the structural strength and the force transmission effect of the body play a critical role in the safety of the vehicle. In particular, the structural strength of the junction between the central structure of the vehicle body and the rear floor is of greater importance.

However, the design of the connecting structure between the middle structure of the vehicle body and the rear floor is not reasonable at present, so that the structural strength of the vehicle body is low. Particularly, when a collision force is transmitted forward through the rear floor in a rear collision of the vehicle, the rear floor is likely to be lifted upward, which may affect the safety of the vehicle.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a vehicle body connection structure to improve the connection strength between the rear floor and the middle portion of the vehicle body, and to improve the safety of collision.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a vehicle body connecting structure is used for connecting a rear floor and a vehicle body middle structure which are integrally formed through die-casting, a front floor rear cross beam is arranged in the middle of a vehicle body, and the vehicle body connecting structure comprises a first connecting unit and a second connecting unit which are arranged between the rear floor and the front floor rear cross beam; the first connecting unit connects the rear floor and the front floor rear cross member together in the height direction of the vehicle body, and the second connecting unit connects the rear floor and the front floor rear cross member together in the length direction of the vehicle body.

Furthermore, the first connecting unit comprises a first connecting surface which is formed on the rear cross beam of the front floor and is arranged upwards, and a first connecting plate which is formed on the rear floor and extends forwards, wherein the first connecting plate is abutted against the first connecting surface, and the first connecting unit further comprises a plurality of first connecting pieces which connect the first connecting plate to the first connecting surface.

Further, the second linkage unit is including forming in the second that arranges towards the back on the preceding floor rear frame is connected the face, and the shaping is in downwardly extending's on the back floor second connecting plate, second connecting plate butt is in on the second is connected the face, just the second linkage unit still including will the second connecting plate is connected a plurality of second connecting pieces on the second is connected the face.

Further, the first connecting piece detachably connects the first connecting plate to the first connecting surface, and the second connecting piece detachably connects the second connecting plate to the second connecting surface.

Further, the first connecting piece and/or the second connecting piece adopt bolts.

Furthermore, a plurality of reinforcing ribs are arranged between the first connecting plate and/or the second connecting plate and the body of the rear floor.

Furthermore, preceding floor rear frame member adopts the aluminium alloy to make, and the top of preceding floor rear frame member has the convex last connecting block in back the bottom of preceding floor rear frame member has the convex lower connecting block in front, just the top end face of preceding floor rear frame member constitutes first connection face, the rear end face of going up the connecting block constitutes the second is connected the face.

Compared with the prior art, the utility model discloses following advantage has:

automobile body connection structure, through first linkage unit and second linkage unit, can link together back floor and preceding floor rear frame respectively on automobile body direction of height and automobile body direction of height, and do benefit to the joint strength who improves between back floor and the automobile body middle part, through the second linkage unit who connects at automobile body length direction, when the vehicle rear portion bumps, can restrain the tendency of lifting on integrated into one piece's the back floor to promote the security of collision.

In addition, the first connecting surface, the first connecting plate and the first connecting piece are convenient to arrange and implement, and the first connecting unit is convenient to connect in the height direction of the vehicle body. The second connecting surface, the second connecting plate and the second connecting piece are beneficial to the connection of the second connecting unit in the length direction of the vehicle body. The first connecting plate and the second connecting plate are detachably connected respectively, so that the rear floor and the rear cross beam of the front floor can be conveniently connected and detached.

In addition, the bolt is mature in product and facilitates detachable connection between the rear floor and the rear cross beam of the front floor. The arrangement of the reinforcing ribs is beneficial to improving the stability of connection. The front floor rear cross beam made of the aluminum profile, the upper connecting block and the lower connecting block are beneficial to improving the self structural strength of the front floor rear cross beam, and the connection reliability of the front floor rear cross beam and the rear floor can be improved.

Another object of the utility model is to provide a vehicle is equipped with integrative die-casting forming's back floor in the automobile body of this vehicle, back floor is through as above vehicle body connected structure with preceding floor back beam in the automobile body links to each other, just the middle part of automobile body be equipped with the integrated battery package casing of an organic whole of automobile body, preceding floor back beam constitutes a part of battery package casing.

Furthermore, rear floor longitudinal beams respectively arranged on two sides, rear wheel covers connected to the rear floor longitudinal beams on each side, and a rear floor front cross beam and a rear floor rear cross beam connected between two ends of the rear floor longitudinal beams on two sides are formed on the rear floor; the rear floor front cross beam is provided with a rear row of seat installation parts and is connected with the front floor rear cross beam.

Further, the battery pack shell has the threshold roof beam of establishing in both sides separately, the both ends of back floor front beam shape respectively have preceding convex connecting portion, each connecting portion with correspond the side the rear end of threshold roof beam links together, and is in both sides be connected with between the top of threshold roof beam and be close to the back row seat installation crossbeam that back floor set up.

Vehicle, through integrative die-casting fashioned back floor, with the integrated battery package casing as an organic whole of automobile body, and as above automobile body connected structure, can effectively improve the structural rigidity on back floor to be favorable to the transmission of collision power, simultaneously, still be favorable to reducing the quantity of spare part, and then reduce the work load of parts machining and the work load of later stage assembly.

In addition, the front beam of the rear floor is connected with the rear beam of the front floor, so that the structural strength of the rear row of seats is improved. And the rear row seat mounting cross beam is connected with the threshold beam, so that the transmission of the collision force between the rear floor and the threshold beam is facilitated, and the dispersion transmission effect of the collision force is promoted.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the attached drawings

Fig. 1 is a schematic structural view of a rear floor and a rear cross member of a front floor in a connected state according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of the rear floor and the rear cross member of the front floor in another view angle in a connection state according to the first embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural view of a rear floor according to a first embodiment of the present invention;

FIG. 5 is an enlarged view of the portion B of FIG. 4;

fig. 6 is a schematic structural view of a front floor rear cross member according to a first embodiment of the present invention at a viewing angle;

fig. 7 is a schematic structural view of a front floor rear cross member according to a first embodiment of the present invention at another viewing angle;

fig. 8 is a schematic structural view of a part of a vehicle body according to a second embodiment of the present invention at a first viewing angle;

fig. 9 is a schematic structural view of a part of a vehicle body according to a second embodiment of the present invention at another viewing angle;

description of reference numerals:

1. a front floor rear cross member; 2. a rear floor; 3. a battery pack housing;

101. an upper connecting block; 1011. a first connection face; 1012. a second connection face; 1013. a first threaded hole; 1014. a second threaded hole; 102. a lower connecting block;

201. a first connecting plate; 2011. a first connection hole; 2012. a first connecting member; 2013. a first reinforcing rib; 202. a second connecting plate; 2021. a second connection hole; 2022. a second connecting member; 2023. a second reinforcing rib; 203. a rear floor stringer; 204. a rear wheel cover; 205. a connecting portion; 206. a rear floor front cross member; 2061. a protrusion; 207. a rear floor rear cross beam;

301. a threshold beam; 302. a crossbeam is arranged on the rear row of seats; 303. a beam is arranged on the front row seat; 304. a base plate.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc. appear, they are based on the orientation or positional relationship 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. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are instead intended to cover the same item.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The present embodiment relates to a vehicle body connecting structure for connection between a rear floor 2 and a vehicle body middle structure which are integrally die-cast, and the vehicle body middle has a front floor rear cross member 1.

In overall construction, the vehicle body connecting structure includes a first connecting unit and a second connecting unit provided between the rear floor 2 and the front floor rear cross member 1. Wherein the first connecting unit connects the rear floor 2 and the front floor rear cross member 1 together in the height direction of the vehicle body, and the second connecting unit connects the rear floor 2 and the front floor rear cross member 1 together in the length direction of the vehicle body.

Based on the above overall description, in the present embodiment, an exemplary structure in which the rear floor 2 and the front floor rear cross member 1 are connected via a vehicle body connecting structure is shown in fig. 1 and 2. In order to highlight the vehicle body connection structure, only the front floor rear cross member 1 in the vehicle body center structure is shown in the drawings. Which is provided to extend in the vehicle body width direction and is connected to the front end of the rear floor panel 2 via a first connecting unit and a second connecting unit.

In the present embodiment, as a preferred implementation form, the first connecting unit includes an upwardly disposed first connecting surface 1011 formed on the rear cross beam 1 of the front floor panel, and a forwardly extending first connecting plate 201 formed on the rear floor panel 2, the first connecting plate 201 abuts on the first connecting surface 1011, and the first connecting unit further includes a plurality of first connecting members 2012 connecting the first connecting plate 201 to the first connecting surface 1011.

In the present embodiment, also as a preferred embodiment, the second connection unit includes a second connection surface 1012 arranged rearward and formed on the front floor rear cross member 1, and a second connection plate 202 extending downward and formed on the rear floor 2. The second web 202 abuts on the second joint face 1012 and the second joint unit further comprises several second joints 2022 connecting the second web 202 to the second joint face 1012.

Specifically, the front floor rear cross member 1 has a structure as shown in fig. 6 and 7, and the front floor rear cross member 1 is made of an aluminum profile to have a good structural strength. The top of the front floor rear cross beam 1 is provided with a rear convex upper connecting block 101, the bottom of the front floor rear cross beam 1 is provided with a front convex lower connecting block 102, the top end surface of the front floor rear cross beam 1 forms a first connecting surface 1011, and the rear end surface of the upper connecting block 101 forms a second connecting surface 1012. The arrangement of the upper connecting block 101 and the lower connecting block 102 is beneficial to improving the self structural strength of the front floor rear cross beam 1, so that the connection reliability between the front floor rear cross beam 1 and the rear floor 2 is improved.

The lower connecting block 102 is used for connecting the front floor rear cross beam 1 with other parts in the middle of the vehicle body, and is simple in structure and convenient to machine and form. In addition, a plurality of cavities which extend along the length direction of the front floor rear cross beam 1 are formed in the front floor rear cross beam 1, and the cavities are favorable for further strengthening the strength of the front floor rear cross beam 1 and reducing the weight.

Still referring to fig. 4 to 6, the first connecting plate 201 extending forward provided at the front end of the rear floor 2 abuts on the first connecting surface 1011 disposed upward, and the two are disposed up and down in the height direction of the vehicle body, and the plurality of first connecting members 2012 connect the rear floor 2 and the front floor rear cross member 1 together in the height direction of the vehicle body, which is beneficial to improving the connecting strength and reliability of the first connecting unit.

The second connecting plate 202 extending downward from the front end of the rear floor 2 abuts on the second connecting surface 1012 arranged rearward, the two are arranged left and right in the longitudinal direction of the vehicle body, and the plurality of second connecting members 2022 connect the rear floor 2 and the front floor rear cross member 1 together in the longitudinal direction of the vehicle body, which is favorable for improving the structural strength and reliability of the second connecting unit. The roots of the first connecting plate 201 and the second connecting plate 202 are connected, so that the stability and reliability of the first connecting plate 201 and the second connecting plate 202 during connection are facilitated.

In this embodiment, when a rear collision occurs, the second connector 2022 and the second connection plate 202 are engaged to prevent the rear floor panel 2 from being lifted up. Meanwhile, the first connecting member 2012 and the first connecting plate 201 can also play a certain inhibiting effect when the rear floor 2 is lifted upwards, so that the improvement of the connection reliability between the rear floor 2 and the front floor rear cross beam 1 is facilitated.

In a preferred embodiment, a first connector 2012 detachably connects the first connector 201 to the first connector surface 1011, and a second connector 2022 detachably connects the second connector 202 to the second connector surface 1012. Thus, the connection and the disassembly between the rear floor 2 and the front floor rear cross beam 1 are facilitated. During specific implementation, the first connecting piece 2012 and the second connecting piece 2022 both adopt bolts, and the product is mature, and the installation of being convenient for, and the connection effect is good.

To facilitate the installation of the bolts, as shown in fig. 4 to 7, a plurality of first connection holes 2011 are provided on the first connection plate 201 at intervals in the width direction of the rear floor 2, and a plurality of first screw holes 1013 are provided on the first connection surface 1011 corresponding to each first connection hole 2011. The body of the bolt can pass through the first connection hole 2011 from top to bottom and is screwed with the corresponding first threaded hole 1013, so as to realize the connection between the first connection plate 201 and the first connection surface 1011.

As also shown in fig. 4 to 7, a plurality of second connection holes 2021 arranged at intervals in the width direction of the rear floor panel 2 are provided on the second connection plate 202, and a plurality of second screw holes 1014 are provided on the second connection surface 1012 in correspondence with the respective second connection holes 2021. The rod body of the bolt can pass through the second connecting hole 2021 from back to front to be screwed with the corresponding second threaded hole 1014, so that the connection between the second connecting plate 202 and the second connecting surface 1012 is realized.

It should be noted that, considering the bolt connected to the first connection surface 1011, the bolt is provided orthogonally to the bolt connected to the second connection surface 1012. Therefore, in order to ensure the connection effect, it is necessary to ensure that the plurality of bolts connected to the first connection surface 1011 and the plurality of bolts connected to the second connection surface 1012 are arranged alternately in a specific arrangement. That is, the first and second connection holes 2011 and 2021, and the first and second screw holes 1013 and 1014 are arranged alternately in the width direction of the rear floor panel 2.

It is understood that the present embodiment is also applicable to the first connecting element 2012 and the second connecting element 2022 using bolts only on one side, and other connecting elements in the prior art on the other side, as long as the detachable connection between the first connecting plate 201 and the first connecting surface 1011, or between the second connecting plate 202 and the second connecting surface 1012 can be achieved.

In addition, a plurality of reinforcing ribs are provided between the first and second connection plates 201 and 202 and the body of the rear floor 2. In particular, referring to fig. 1 to 3, a plurality of first reinforcing ribs 2013 are provided on the first connecting plate 201 at intervals in the width direction of the rear floor 2, and a plurality of second reinforcing ribs 2023 are provided on the second connecting plate 202 at intervals in the width direction of the rear floor 2. Each of the first reinforcement ribs 2013 and the second reinforcement ribs 2023 is triangular, and the sizes of the plurality of first reinforcement ribs 2013 and the plurality of second reinforcement ribs 2023 may be different from each other or the same according to a specific arrangement space.

Here, the arrangement of the first reinforcement rib 2013 and the second reinforcement rib 2023 is also beneficial to improving the strength of the first connecting plate 201 and the second connecting plate 202, and further improving the connection strength and reliability between the rear floor 2 and the front floor rear cross beam 1. It is to be understood that, in the present embodiment, a solution in which reinforcing ribs are provided only on one of the first connecting plate 201 and the second connecting plate 202 is also possible.

The vehicle body connecting structure described in the present embodiment can connect the rear floor 2 and the front floor rear cross member 1 together in the vehicle body height direction and the vehicle body height direction respectively through the first connecting unit and the second connecting unit, and is favorable for improving the connection strength between the rear floor 2 and the vehicle body middle part, and simultaneously, when the vehicle rear part collides, the vehicle body connecting structure can suppress the upward lifting tendency of the integrally formed rear floor 2, thereby improving the safety of collision.

Example two

The present embodiment relates to a vehicle, in which a rear floor 2 is integrally formed by die-casting in a vehicle body, the rear floor 2 is connected to a front floor rear cross member 1 in the vehicle body by a vehicle body connecting structure described in the first embodiment, and a battery pack case 3 integrated with the vehicle body is provided in a middle portion of the vehicle body, and the front floor rear cross member 1 constitutes a part of the battery pack case 3.

Based on the general description above, a partial exemplary structure of a vehicle body is shown in fig. 8 and 9. The rear floor 2 is formed with rear floor stringers 203 disposed on both sides, rear wheel houses 204 connected to the respective side rear floor stringers 203, and a rear floor front cross member 206 and a rear floor rear cross member 207 connected between both ends of the both side rear floor stringers 203. The rear floor front cross member 206 is provided with a rear seat mounting portion, and the rear floor front cross member 206 is connected to the front floor rear cross member 1 via the vehicle body connecting structure in the first embodiment. That is, the first connecting plate 201 and the second connecting plate 202 in the first embodiment are both provided on the front cross member of the rear floor 2.

The rear seat mounting portion in this embodiment includes a plurality of protrusions 2061 protruding upward on the rear floor front cross member 206, and mounting holes provided on the protrusions 2061. The protrusions 2061 and the mounting holes are simple in structure, convenient to machine and form on the rear floor front cross beam 206, and convenient to mount rear seats.

As shown in fig. 8 and 9, the battery pack case 3 in this embodiment has threshold beams 301 respectively disposed on both sides, front protruding connecting portions 205 are respectively formed at both ends of the front floor cross member 206, each connecting portion 205 is connected to the rear end of the threshold beam 301 on the corresponding side, a rear seat mounting cross member 302 disposed near the rear floor 2 is connected between the top portions of the threshold beams 301 on both sides, and a front seat mounting cross member 303 disposed in front of the rear seat mounting cross member 302 is further disposed on the battery pack case 3. The provision of the connecting portion 205 in this embodiment, so that the rear seat mounting cross member 302 is connected to the rocker beam 301, facilitates the transmission of the collision force between the rear floor 2 and the rocker beam 301, thereby facilitating the dispersion transmission effect of the lifting collision force.

Preferably, each connecting portion 205 extends to the rear seat mounting cross member 302, and the width of each connecting portion 205 is gradually reduced from the rear to the front, which is beneficial to improve the connecting strength at the connecting portion 205. Each of the connecting portions 205 is connected to the upper surface of the rocker beam 301 on the corresponding side via a plurality of connecting members, such as bolts.

Further, a front floor in the vehicle body constitutes a roof panel of the battery pack case 3, a rear floor front cross member 206 constitutes a rear end panel of the battery pack case 3, and brackets mounted between rocker beams 301 on both sides of the vehicle body extend forward and rearward, respectively, and constitute a bottom panel 304 of the battery pack case 3.

The vehicle, through integrative die-casting fashioned back floor 2, with the integrated battery package casing 3 as an organic whole of automobile body, and as above automobile body connection structure, can effectively improve the structural rigidity on back floor 2 to be favorable to the transmission of collision power, simultaneously, still be favorable to reducing the quantity of spare part, and then reduce the work load of parts machining and the work load of later stage assembly, thereby do benefit to and improve production efficiency.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A vehicle body connecting structure characterized in that:

the vehicle body connecting structure is used for connecting a rear floor (2) and a vehicle body middle structure which are integrally formed by die casting, a front floor rear cross beam (1) is arranged in the middle of the vehicle body, and the vehicle body connecting structure comprises a first connecting unit and a second connecting unit which are arranged between the rear floor (2) and the front floor rear cross beam (1);

the first connecting unit connects the rear floor (2) and the front floor rear cross beam (1) together along the height direction of the vehicle body, and the second connecting unit connects the rear floor (2) and the front floor rear cross beam (1) together along the length direction of the vehicle body.

2. The vehicle body attachment structure according to claim 1, characterized in that:

the first connecting unit comprises a first connecting surface (1011) which is formed on the rear cross beam (1) of the front floor and is arranged upwards, and a first connecting plate (201) which is formed on the rear floor and extends forwards, wherein the first connecting plate (201) is abutted to the first connecting surface (1011), and the first connecting unit further comprises a plurality of first connecting pieces (2012) which connect the first connecting plate (201) to the first connecting surface (1011).

3. The vehicle body attachment structure according to claim 2, characterized in that:

the second connecting unit comprises a second connecting surface (1012) which is formed on the rear cross beam (1) of the front floor and is arranged backwards, and a second connecting plate (202) which is formed on the rear floor (2) and extends downwards, wherein the second connecting plate (202) abuts against the second connecting surface (1012), and the second connecting unit further comprises a plurality of second connecting pieces (2022) which connect the second connecting plate (202) to the second connecting surface (1012).

4. The vehicle body attachment structure according to claim 3, characterized in that:

the first connecting element (2012) detachably connects the first connecting plate (201) to the first connecting surface (1011), and the second connecting element (2022) detachably connects the second connecting plate (202) to the second connecting surface (1012).

5. The vehicle body attachment structure according to claim 4, characterized in that:

the first connecting piece (2012) and/or the second connecting piece (2022) adopt bolts.

6. The vehicle body attachment structure according to claim 3, characterized in that:

a plurality of reinforcing ribs are arranged between the first connecting plate (201) and/or the second connecting plate (202) and the body of the rear floor (2).

7. The vehicle body connection structure according to any one of claims 3 to 6, characterized in that:

preceding floor rear frame member (1) adopts the aluminium alloy to make, and the top of preceding floor rear frame member (1) has the last connecting block (101) of kyphosis the bottom of preceding floor rear frame member (1) has lower connecting block (102) of kyphosis, just the top end face of preceding floor rear frame member (1) constitutes first connection face (1011), the rear end face of going up connecting block (101) constitutes second connection face (1012).

8. A vehicle, characterized in that:

the vehicle is provided with a rear floor (2) integrally formed by die-casting in a vehicle body, the rear floor (2) is connected with a front floor rear cross member (1) in the vehicle body through a vehicle body connecting structure according to any one of claims 1 to 7, and the middle of the vehicle body is provided with a battery pack case (3) integrally formed with the vehicle body, and the front floor rear cross member (1) constitutes a part of the battery pack case (3).

9. The vehicle according to claim 8, characterized in that:

rear floor longitudinal beams (203) respectively arranged on two sides, rear wheel covers (204) connected to the rear floor longitudinal beams (203) on each side, and a rear floor front cross beam (206) and a rear floor rear cross beam (207) connected between two ends of the rear floor longitudinal beams (203) on two sides are formed on the rear floor (2);

be equipped with back row seat installation department on back floor front beam (206), just back floor front beam (206) with front floor rear beam (1) links to each other.

10. The vehicle according to claim 9, characterized in that:

battery package casing (3) have threshold roof beam (301) of establishing in both sides separately, the both ends of back floor front beam (206) are the shaping respectively have preceding convex connecting portion (205), each connecting portion (205) and correspond the side the rear end of threshold roof beam (301) links together, and is in both sides be connected with between the top of threshold roof beam (301) and be close to back row seat installation crossbeam (302) that back floor (2) set up.

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