Vehicle body structure

Abstract

The utility model relates to a vehicle body structure which comprises a front girder, an energy absorption box, a forecabin frame and a connecting plate, the connecting plate comprises a first connecting part and a second connecting part, the two sides of the first connecting part are connected with the front girder and the energy absorption box respectively, and the second connecting part is connected with the forecabin frame. An included angle is formed between the extending direction of the first connecting part and the extending direction of the second connecting part. According to the front cabin, the front girder, the energy absorption box and the front cabin frame are connected together through the first connecting part and the second connecting part. Due to the fact that the extending direction of the first connecting part is not parallel to the extending direction of the second connecting part, by changing the extending direction of the second connecting part and the size of the second connecting part in the length direction of the vehicle body structure, the relative positions of the forecabin frame, the front girder, the energy absorption box and the connecting plate in the length direction of the vehicle body structure can be changed; therefore, the length of the whole vehicle can be conveniently adjusted, and particularly, the length of the whole vehicle can be conveniently reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle body structure. Background Art

[0002] Figure 1 A vehicle body structure in the prior art is shown. Figure 1 As shown, the vehicle body structure includes: a front beam 1', an energy absorption box 2', a connecting plate 3' and a front cabin frame. The front beam 1' is connected to the energy absorption box 2' via the connecting plate 3', that is, the connecting plate 3' is in the shape of a rectangular plate, one side of the connecting plate 3' is connected to the front beam 1', and the other side is connected to the energy absorption box 2'. The end of the energy absorption box 2' that is not connected to the connecting plate 3' is connected to the front anti-collision beam 7'. The front beam 1', the energy absorption box 2' and the connecting plate 3' are symmetrically arranged relative to the longitudinal direction X of the vehicle body structure, that is, the two energy absorption boxes 2' are respectively connected to the two ends of the front anti-collision beam 7'.

[0003] The front cabin frame can be used to install radiators, condensers, etc. The front cabin frame includes an upper curved beam 4', a lower curved beam 5', and columns 6'. The two ends of the two columns 6' are connected to the upper curved beam 4' and the lower curved beam 5', respectively, to form a rectangular front cabin frame. The front beam 1' is connected to the front cabin frame by connecting to the columns 6', so that at least part of the front beam 1', as well as the connecting plate 3' and the energy absorption box 2' protrude from the front cabin frame (i.e., are located in front of the front cabin frame). This makes the vehicle using this body structure longer and larger, making it difficult to adjust the vehicle length. Utility Model Content

[0004] The present application provides a vehicle body structure for solving the problem that the existing vehicle body structure is inconvenient for adjusting the length of the entire vehicle.

[0005] A vehicle body structure provided in an embodiment of the present application includes: a front beam, an energy absorption box, a front cabin frame and a connecting plate, the connecting plate including a first connecting portion and a second connecting portion, the two sides of the first connecting portion are respectively connected to the front beam and the energy absorption box, the second connecting portion is connected to the front cabin frame, and an angle is formed between the extension direction of the first connecting portion and the extension direction of the second connecting portion.

[0006] In a possible design, along the width direction of the vehicle body structure, the projection of the energy absorption box and the projection of the front cabin frame at least partially overlap.

[0007] In one possible design, the front beam includes: a first main body, a first closing plate and a first reinforcing plate, the first main body is connected to the first closing plate, and a cavity is formed between the two, and the first reinforcing plate is connected to the first main body and the first closing plate at the end facing the first connecting part.

[0008] In a possible design, the first connecting portion is welded to the first reinforcing plate, and a positioning hole is provided on the first connecting portion.

[0009] In a possible design, a second reinforcing plate is provided at one end of the energy absorbing box facing the first connecting portion, and the first connecting portion is connected to the second reinforcing plate.

[0010] In a possible design, along a plane perpendicular to the length direction of the vehicle body structure, the cross-sectional area of the second reinforcement plate is larger than the cross-sectional area of the energy absorption box.

[0011] In one possible design, a plurality of first connection holes are provided on the first connection part along the circumference of the first connection part, and a plurality of second connection holes are provided on the second reinforcement plate along the circumference of the second reinforcement plate, and the connecting member passes through the first connection hole and the second connection hole.

[0012] In a possible design, a weight-reducing hole is provided on the first connecting portion.

[0013] In a possible design, the front cabin frame includes: an upper curved beam, a lower curved beam and a column, both ends of the column are respectively connected to the upper curved beam and the lower curved beam, and the second connecting portion is connected to the column.

[0014] In a possible design, the column includes: a second body and a second closing plate, the second body is connected to the second closing plate, and a cavity is formed therebetween.

[0015] In the present application, the first connecting portion is in the form of a rectangular plate, one side of which is connected to the front beam and the other side to the crash box. The second connecting portion is also in the form of a plate, the side of which, facing away from the first connecting portion, is connected to the front cabin frame. Thus, the first and second connecting portions connect the front beam, the crash box, and the front cabin frame together. Because the extension direction of the first connecting portion is not parallel to the extension direction of the second connecting portion, the relative positions of the front cabin frame, the front beam, the crash box, and the connecting plate along the length of the vehicle body can be changed by changing the extension direction of the second connecting portion and the length of the second connecting portion along the length of the vehicle body, thereby facilitating adjustment of the vehicle length, particularly facilitating reduction of the vehicle length.

[0016] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a vehicle body structure in the prior art;

[0018] Figure 2This is a schematic structural diagram of a vehicle body structure provided in this application in a specific embodiment;

[0019] Figure 3 for Figure 2 A schematic diagram of part of the vehicle body structure;

[0020] Figure 4 for Figure 2 Schematic diagram of the structure of the middle connecting plate.

[0021] Reference numerals:

[0022] 1-Front beam;

[0023] 11-First subject;

[0024] 12-First closing board;

[0025] 13- first reinforcement plate;

[0026] 2-energy absorption box;

[0027] 21- second reinforcement plate;

[0028] 3-Connecting plate;

[0029] 31- first connecting portion;

[0030] 31a- positioning hole;

[0031] 31b-first connecting hole;

[0032] 31c-weight reduction hole;

[0033] 32- second connecting portion;

[0034] 4-upper curved beam;

[0035] 5-Bent beam;

[0036] 6- pillar;

[0037] 61-Second subject;

[0038] 62-Second closing plate;

[0039] 7-Front anti-collision beam.

[0040] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0041] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0042] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0043] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0044] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0045] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described based on the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should be understood that when it is mentioned that an element is connected to another element "on" or "under", it can not only be directly connected to the other element "on" or "under", but also be indirectly connected to the other element "on" or "under" through an intermediate element.

[0046] The present application provides a vehicle body structure, such as Figure 2 and Figure 3 As shown, the vehicle body structure includes a front beam 1, a crash box 2, a front cabin frame, and a connecting plate 3. The connecting plate 3 includes a first connecting portion 31 and a second connecting portion 32. The first connecting portion 31 is connected to the front beam 1 and the crash box 2 on both sides, and the second connecting portion 32 is connected to the front cabin frame. The first connecting portion 31 and the second connecting portion 32 extend in an angle with each other. The front cabin frame is used to mount the radiator, condenser, and other components.

[0047] In this embodiment, if Figure 2 and Figure 3As shown, the first connecting portion 31 is a rectangular plate, one side of which is connected to the front beam 1 and the other side to the crash box 2. The second connecting portion 32 is also plate-shaped, with its side facing away from the first connecting portion 31 connected to the front cabin frame. Thus, the first connecting portion 31 and the second connecting portion 32 connect the front beam 1, the crash box 2, and the front cabin frame together. Because the extension direction of the first connecting portion 31 is not parallel to the extension direction of the second connecting portion 32, the relative position of the front cabin frame, the front beam 1, the crash box 2, and the connecting plate 3 in the longitudinal direction X of the vehicle body structure can be changed by changing the extension direction of the second connecting portion 32 and the dimension of the second connecting portion 32 along the longitudinal direction X of the vehicle body structure, thereby facilitating adjustment of the vehicle length, particularly for reducing the vehicle length.

[0048] The length direction X of the vehicle body structure refers to the direction of the line connecting the front and rear of the vehicle, the front direction refers to the direction from the rear of the vehicle to the front of the vehicle, and the rear direction refers to the direction from the front of the vehicle to the rear of the vehicle. The width direction X of the vehicle body structure refers to the direction of the line connecting the two front doors.

[0049] Specifically, the end of the energy absorption box 2 facing away from the front beam 1 is connected to the front anti-collision beam 7. The front beam 1, energy absorption box 2, and connecting plate 3 are arranged symmetrically with respect to the longitudinal direction X of the vehicle body structure. The two energy absorption boxes 2 are respectively connected to the two ends of the front anti-collision beam 7. By adjusting the dimension L1 of the second connecting portion 32 along the longitudinal direction X of the vehicle body structure, the distance between the front cabin frame and the front anti-collision beam 7 can be changed, thereby adjusting the overall vehicle length.

[0050] It can be understood that the dimension L1 of the second connecting portion 32 along the length direction X of the vehicle body structure is set according to actual needs.

[0051] More specifically, the second connecting portion 32 extends forward along the length direction X of the vehicle body structure. Along the width direction Y of the vehicle body structure, the projection of the crash box 2 and the projection of the front cabin frame at least partially overlap, thereby reducing the vehicle's overall length. This reduces the length of the front beam 1 by 50-100 mm, and the overall vehicle length by 50-60 mm. Furthermore, the length of the crash box 2 can be increased, improving vehicle safety. The length of the crash box 2 can be increased by 50-60 mm.

[0052] Furthermore, the second connecting portion 32 can extend forward or backward relative to the first connecting portion 31, so that the length of the entire vehicle can be adjusted within a larger range.

[0053] At present, electric vehicles mainly include hybrid electric vehicles (HEV), plug-in hybrid electric vehicles (PHEV) and electric vehicles (EV).

[0054] Specifically, the length of the crash box 2 varies depending on the vehicle type. The crash box of a PHEV is generally longer, and since the engine is housed within the PHEV, a greater space requirement is required. Therefore, by increasing the dimension of the second connecting portion 32 along the length direction X of the vehicle body structure, the front cabin frame can be moved forward, thereby providing sufficient space for installing the engine. The crash box of an EV is generally shorter, and since the engine is not required within the EV, by reducing the dimension of the second connecting portion 32 along the length direction X of the vehicle body structure, the front cabin frame can be moved rearward, thereby reducing the overall vehicle size.

[0055] More specifically, the dimension L1 of the second connecting portion 32 along the length direction X of the vehicle body structure is generally 45 mm to 85 mm, the length of the crash box of a PHEV is generally 100 mm to 140 mm, and the length of the crash box of an EV is generally 60 mm to 100 mm.

[0056] It is understood that PHEVs and EVs can also use the same size connection plate 3 and crash box 2 to improve their versatility and reduce vehicle production costs. When PHEVs and EVs use the same size connection plate 3 and crash box 2, since EVs do not require an engine, the engine installation space can be converted into storage space or other uses.

[0057] In a specific embodiment, Figure 3 As shown, the front beam 1 includes: a first main body 11, a first closing plate 12 and a first reinforcing plate 13. The first main body 11 is connected to the first closing plate 12, and a cavity is formed therebetween. The first reinforcing plate 13 is connected to the ends of the first main body 11 and the first closing plate 12 toward the first connecting portion 31.

[0058] In this embodiment, if Figure 3 As shown, a cavity is formed between the first body 11 and the first cover plate 12, which improves the impact resistance of the front beam 1 and facilitates the protection of the vehicle occupants. The first reinforcement plate 13 has a protruding structure that can extend from the first body 11 and the first cover plate 12 toward the end of the first connecting portion 31 into the cavity and is welded to the first body 11 and the first cover plate 12.

[0059] Furthermore, the first reinforcing plate 13 is welded to the first connecting portion 31. The first reinforcing plate 13 is provided with a flange structure in the circumferential direction of the protruding structure. The flange structure has a large contact area with the first connecting plate 31, which makes the welding reliability of the two higher.

[0060] Furthermore, if Figure 4As shown, a positioning hole 31a is provided on the first connection portion 31. The relative position of the first reinforcing plate 13 and the first connection portion 31 can be observed through the positioning hole 31a, thereby improving the accuracy of the welding connection position.

[0061] Optionally, the positioning holes 31 a are symmetrically arranged at the upper end and the lower end of the first connecting portion 31 .

[0062] In a specific embodiment, Figure 3 As shown, the second reinforcing plate 21 is provided at one end of the crash box 2 facing the first connecting portion 31. The first connecting portion 31 is connected to the second reinforcing plate 21, thereby facilitating the connection between the first connecting portion 31 and the crash box 2. The first connecting portion 31 and the second reinforcing plate 21 can be connected by carbon dioxide gas shielded welding.

[0063] Specifically, along a plane perpendicular to the longitudinal direction X of the vehicle body structure, the cross-sectional area of the second reinforcing plate 21 is larger than the cross-sectional area of the crash box 2 , thereby increasing the contact area between the first connecting portion 31 and the crash box 2 and improving the connection strength.

[0064] Further, such as Figure 3 and Figure 4 As shown, along the circumference of the first connecting portion 31, a plurality of first connecting holes 31b are provided on the first connecting portion 31, and along the circumference of the second reinforcing plate 21, a plurality of second connecting holes are provided on the second reinforcing plate 21. The connecting member passes through the first connecting hole 31b and the second connecting hole, so that the connection between the first connecting portion 31 and the energy absorption box 2 is more reliable.

[0065] Optionally, four first connection holes 31b may be provided along the circumference of the first connection portion 31. The connection member may be a fastener such as a screw or a rivet. When the connection member is a rivet, the rivet is interference-connected with the first connection hole 31b and the second connection hole.

[0066] Furthermore, the first connection portion 31 is provided with a thickened area at the position where the first connection hole 31 b is provided, so as to reduce the influence of the first connection hole 31 b on the strength of the first connection portion 31 .

[0067] In addition, the flange structure of the first reinforcing plate 13 does not overlap with the projection of the first connecting hole 31 b in the length direction of the vehicle body structure, so that the first reinforcing plate 13 does not affect the connection between the first connecting plate 31 and the crash box 2 .

[0068] When assembling the vehicle body structure, the first main body 11, the first edge seal 12 and the first reinforcement plate 13 can be welded together to form the front beam 1, and then the flange structure of the first reinforcement plate 13 is welded to the first connection part 31, and then the second connection part 32 is welded to the front cabin frame, and finally the energy absorption box 2 is connected to the first connection part 31.

[0069] The vehicle body structure can be connected and assembled in other feasible sequences.

[0070] In the above embodiment, the first connection portion 31 is provided with a weight-reducing hole 31 c, which is located at the center of the first connection portion 31. The provision of the weight-reducing hole 31 c can also improve the strength of the first connection portion 31.

[0071] In a specific embodiment, Figure 2 As shown, the front cabin frame includes: an upper curved beam 4, a lower curved beam 5 and a column 6, the two ends of the column 6 are respectively connected to the upper curved beam 4 and the lower curved beam 5, and the second connecting portion 32 is connected to the column 6, so that the column 6 can be an integrated structure without being divided into two parts (i.e., a split structure) above and below the front beam 1, thereby making the modality and stiffness of the front cabin frame better.

[0072] Specifically, such as Figure 3 As shown, the pillar 6 includes a second body 61 and a second cover plate 62. The second body 61 and the second cover plate 62 are connected to form a cavity between them. The cavity structure of the pillar 6 improves the impact resistance of the pillar 6, thereby preventing deformation of the front cabin frame and protecting the occupants of the vehicle.

[0073] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A vehicle body structure, characterized in that: The vehicle body structure comprises: a front beam (1), an energy absorption box (2), a front cabin frame and a connecting plate (3); the connecting plate (3) comprises a first connecting portion (31) and a second connecting portion (32); two sides of the first connecting portion (31) are respectively connected to the front beam (1) and the energy absorption box (2); the second connecting portion (32) is connected to the front cabin frame; an angle is formed between an extension direction of the first connecting portion (31) and an extension direction of the second connecting portion (32).

2. The vehicle body structure according to claim 1, wherein: Along the width direction (Y) of the vehicle body structure, the projection of the energy absorption box (2) and the projection of the front cabin frame at least partially overlap.

3. The vehicle body structure according to claim 1, wherein: The front beam (1) comprises: a first main body (11), a first closing plate (12) and a first reinforcing plate (13); the first main body (11) is connected to the first closing plate (12), and a cavity is formed therebetween; the first reinforcing plate (13) is connected to the ends of the first main body (11) and the first closing plate (12) facing the first connecting portion (31).

4. The vehicle body structure according to claim 3, characterized in that: The first connecting portion (31) is welded to the first reinforcing plate (13), and a positioning hole (31a) is provided on the first connecting portion (31).

5. The vehicle body structure according to claim 1, wherein: A second reinforcing plate (21) is provided at one end of the energy absorbing box (2) facing the first connecting portion (31), and the first connecting portion (31) is connected to the second reinforcing plate (21).

6. The vehicle body structure according to claim 5, characterized in that: Along a plane perpendicular to the length direction (X) of the vehicle body structure, the cross-sectional area of the second reinforcement plate (21) is greater than the cross-sectional area of the energy absorption box (2).

7. The vehicle body structure according to claim 6, characterized in that: A plurality of first connection holes (31b) are provided on the first connection portion (31) along the circumference of the first connection portion (31), and a plurality of second connection holes are provided on the second reinforcement plate (21) along the circumference of the second reinforcement plate (21), and a connection member passes through the first connection hole (31b) and the second connection hole.

8. The vehicle body structure according to claim 1, wherein: A weight-reducing hole (31c) is provided on the first connecting portion (31).

9. The vehicle body structure according to any one of claims 1 to 8, characterized in that: The front cabin frame comprises an upper curved beam (4), a lower curved beam (5) and a column (6), the two ends of the column (6) are respectively connected to the upper curved beam (4) and the lower curved beam (5), and the second connecting portion (32) is connected to the column (6).

10. The vehicle body structure according to claim 9, characterized in that: The column (6) comprises a second main body (61) and a second sealing plate (62); the second main body (61) and the second sealing plate (62) are connected to form a cavity therebetween.

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