Motor vehicle body

Abstract

The utility model discloses a motor vehicle body which comprises a vehicle body main body and a frame main body, the frame main body comprises a floor longitudinal beam and a roof longitudinal beam, and the roof longitudinal beam is located above the floor longitudinal beam; the car body main body comprises a side wall plate and a wheel cover which are assembled into a whole, the side wall plate comprises a side wall upper section connected to a car roof longitudinal beam, and the wheel cover is located at the bottom of the side wall upper section and connected to a floor longitudinal beam; the reinforcing part I and the reinforcing part II are arranged on the wheel cover in parallel, the reinforcing part I and the reinforcing part II correspondingly connect the floor longitudinal beam and the side wall upper section respectively, the reinforcing structure of the motor vehicle can be optimized, the force transmission path is continuous, the rigidity of the peripheral structure of a vehicle body connecting point is guaranteed, and the vibration isolation performance of the vehicle body and the operation stability performance of the whole vehicle are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor vehicle skeleton and motor vehicle field, concretely relates to a motor vehicle body. BACKGROUND

[0002] The existing vehicle body mainly forms a ring structure (C ring) around the rear wheel cover through the form of the side wall assembly, rear floor assembly and frame assembly spot welding, plays the purpose of supporting the vehicle body and guaranteeing the rigidity performance of the vehicle body, and the structural form is various and the performance difference is different.

[0003] A good C ring structure can effectively improve the vibration isolation capacity of the vehicle body, and the improvement of the rigidity of the structure around the rear suspension attachment point of the vehicle body also greatly influences the whole vehicle handling stability performance, so the design of the C ring structure is an important part in the whole vehicle research and development.

[0004] The force transmission path of the rear C ring structure of the current vehicle model is disconnected, and the poor lap joint condition is prone to occur, which easily leads to the weak overall rigidity of the rear part of the vehicle body, and is not conducive to the improvement of the vibration isolation performance and the handling stability.

[0005] Therefore, in order to solve the above problems, a motor vehicle body is needed, which can optimize the reinforcement structure of the motor vehicle, make the force transmission path continuous, guarantee the rigidity of the structure around the attachment point of the vehicle body, and improve the vibration isolation performance of the vehicle body and the handling stability of the whole vehicle. UTILITARY MODEL CONTENTS

[0006] Therefore, the utility model aims at overcoming the defects in the prior art, providing a motor vehicle body, which can optimize the reinforcement structure of the motor vehicle, make the force transmission path continuous, guarantee the rigidity of the structure around the attachment point of the vehicle body, and improve the vibration isolation performance of the vehicle body and the handling stability of the whole vehicle.

[0007] The motor vehicle body of the utility model, including vehicle body main part and frame main part,

[0008] The frame main part includes floor longitudinal beam and roof longitudinal beam, and the roof longitudinal beam is located above the floor longitudinal beam.

[0009] The vehicle body main part includes the side wall plate and the wheel cover which are assembled to form a whole, the side wall plate includes the side wall upper section connected on the roof longitudinal beam, and the wheel cover is connected to the floor longitudinal beam at the bottom of the side wall upper section.

[0010] It also includes the reinforcing part I and the reinforcing part II which are arranged in parallel to the wheel cover, and the reinforcing part I and the reinforcing part II respectively connect the floor longitudinal beam and the side wall upper section.

[0011] Further, the vehicle body main part further comprises a floor cross beam I and a floor cross beam II arranged on the floor longitudinal beam; the floor cross beam I is arranged on the bottom of the reinforcement I, and the floor cross beam II is arranged on the bottom of the reinforcement II.

[0012] Further, the reinforcement I and the reinforcement II are arranged on the inner side of the wheel house, the floor cross beam I and the floor cross beam II are arranged on the floor longitudinal beam in parallel on the inner side of the wheel house, and are respectively close to the reinforcement I and the reinforcement II.

[0013] Further, the vehicle body main part further comprises a reinforcement assembly, the reinforcement assembly comprises a front connecting piece I and a rear connecting piece I; the front connecting piece I connects the reinforcement I to the floor longitudinal beam, and the reinforcement I is close to or connected with the floor cross beam I; the rear connecting piece I connects the reinforcement II to the floor longitudinal beam, and the reinforcement II is close to or connected with the floor cross beam II.

[0014] Further, the vehicle body main part further comprises a front wheel house reinforcing piece and a rear wheel house reinforcing piece; the front wheel house reinforcing piece is arranged on the outer side of the wheel house, and the front wheel house reinforcing piece overlaps or partially overlaps with the reinforcement I in the transverse direction; the rear wheel house reinforcing piece is arranged on the outer side of the wheel house, and the rear wheel house reinforcing piece overlaps or partially overlaps with the reinforcement II in the transverse direction.

[0015] Further, the reinforcement assembly further comprises a front connecting piece II and a rear connecting piece II; the top end of the reinforcement I is connected to the upper side of the side wall through the front connecting piece II, and the top end of the reinforcement II is connected to the upper side of the side wall through the rear connecting piece II.

[0016] Further, the upper side of the side wall has a front side beam in front in the longitudinal direction and a rear side beam behind, and has an upper side beam and a lower side beam arranged oppositely in the height direction, and the front side beam, the rear side beam, the upper side beam and the lower side beam form a frame structure.

[0017] The upper side beam is connected to the roof longitudinal beam, the front connecting piece II and the rear connecting piece II are respectively connected to the upper side of the side wall through the lower side beam, the top end of the reinforcement I is close to the bottom end of the front side beam, and the top end of the reinforcement II is close to the bottom end of the rear side beam.

[0018] Further, the vehicle body main part further comprises a lower side of the side wall and a side wall reinforcing piece, the lower side of the side wall is connected to the bottom of the upper side of the side wall, and the side wall reinforcing piece is arranged on the outer side of the lower side beam to connect the upper side of the side wall and the lower side of the side wall, and the side wall reinforcing piece overlaps or partially overlaps with the lower side beam in the transverse direction.

[0019] Further, the lower side of the side wall has a reinforcing plate support end protruding outward, and the reinforcement assembly further comprises a rear reinforcing plate, the rear reinforcing plate is arranged on the lower side of the side wall and connects the reinforcing plate support end and the side wall reinforcing piece.

[0020] Furthermore, the reinforcing assembly also includes a front reinforcing plate that connects the upper and lower sections of the side wall. The front reinforcing plate has a reinforcing plate connecting upper section located outside the front beam, and the reinforcing plate connecting upper section overlaps or partially overlaps with the front beam in the lateral projection.

[0021] This solution also discloses a motor vehicle, which includes the vehicle body of the motor vehicle.

[0022] The beneficial effects of this utility model are as follows: The vehicle body disclosed in this utility model, through the setting of reinforcing member I and reinforcing member II, can form a parallel structure in the longitudinal direction on the main body of the vehicle body. This parallel structure is located on the wheel arch, which not only strengthens the wheel arch but also supports the floor longitudinal beam 1 and the roof longitudinal beam, thereby meeting the high-strength structural requirements of the vehicle body and having good energy absorption characteristics. This improves the rigidity of the body assembly, the rigidity of the frame assembly, and the rigidity of the two after assembly, ensuring the structural rigidity around the body joint points. Furthermore, the force transmission path is continuous from top to bottom, which can improve the vibration isolation performance of the vehicle body and the handling stability of the whole vehicle, resulting in a better driving experience and higher driving safety. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the inner structure of this utility model. Figure 1 ;

[0026] Figure 3 This is a schematic diagram of the inner structure of this utility model. Figure 2 ;

[0027] Figure 4 This is a schematic diagram of the outer structure of the present invention. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the outer structure of the present invention. Figure 1 .

[0029] Floor longitudinal beam 1, floor transverse beam I 2, floor transverse beam II 3, reinforcing part I 4, reinforcing part II 5, front connecting part I 6, rear connecting part I 7, front connecting part II 8, rear connecting part II 9, side wall upper section 10, front side beam 101, rear side beam 102, upper side beam 103, lower side beam 104, side wall lower section 11, wheel cover 12, reinforcing plate support end 121, wheel cover front reinforcing part 13, wheel cover rear reinforcing part 14, side wall reinforcing part 15, rear section reinforcing plate 16, front section reinforcing plate 17, reinforcing plate connecting upper section 171, reinforcing plate connecting lower section 172. DETAILED DESCRIPTION

[0030] Figures 1 to 5 The structure of the utility model is shown in the figure, the motor vehicle body in the embodiment includes a vehicle body main body and a frame main body. Figure 1

[0031] The frame main body includes a floor longitudinal beam 1 and a roof longitudinal beam, the roof longitudinal beam is located above the floor longitudinal beam 1, the floor longitudinal beam 1 and the roof longitudinal beam extend along the longitudinal direction and correspond in the height direction, the longitudinal direction is the length direction of the motor vehicle when the motor vehicle body is applied to the motor vehicle, the head direction of the motor vehicle in the longitudinal direction is front, and vice versa is rear, the top and the bottom correspond in the height direction of the motor vehicle, and details are not repeated here.

[0032] The vehicle body main body includes a side wall panel and a wheel cover 12 assembled to form a whole, the side wall panel includes a side wall upper section 10 connected to the roof longitudinal beam, the wheel cover is connected to the floor longitudinal beam at the bottom of the side wall upper section, and further includes reinforcing part I and reinforcing part II arranged in parallel to the wheel cover, the reinforcing part I and the reinforcing part II respectively connect the floor longitudinal beam and the side wall upper section.

[0033] The reinforcing part I 4 and the reinforcing part II 5 are arranged on the wheel cover 12 and correspond to be connected to the roof longitudinal beam through the side wall upper section 10, the reinforcing part I 4 and the reinforcing part II 5 are close in the longitudinal direction, and the reinforcing part I 4 is located at the front side of the reinforcing part II 5, a parallel structure in the longitudinal direction can be formed on the vehicle body main body, the parallel structure is located on the wheel cover, not only can form the reinforcement of the wheel cover, but also has the ability to support the floor longitudinal beam 1 and the roof longitudinal beam, further meets the structural requirement of high strength of the vehicle body, and has good energy absorption characteristics, so that the rigidity and strength of the vehicle body assembly, the rigidity and strength of the frame assembly and the rigidity and strength after assembly of the two are improved, the rigidity of the structure around the vehicle body attachment point is ensured, the force transmission path is continuous from top to bottom, the vehicle body vibration isolation performance and the whole vehicle handling and stability performance are improved, the driving and riding experience is better, and the driving and riding safety is higher.

[0034] ​In this embodiment, the reinforcing member I 4 is strip-shaped and arranged parallel to the height direction on the wheel housing. The cross-section of the reinforcing member I 4 perpendicular to its own extension direction is in a "U" shape, and the opening of the "U" shape faces the wheel housing; the reinforcing member II 5 is strip-shaped and arranged parallel to the height direction on the wheel housing. The cross-section of the reinforcing member II 5 perpendicular to its own extension direction is in a "U" shape, and the opening of the "U" shape faces the wheel housing; the "U" shaped structures of the reinforcing member I 4 and the reinforcing member II 5 form chambers at their respective corresponding positions after being assembled with the wheel housing, which can improve the structural strength to a certain extent compared with the sheet-type reinforcement structure. Under the same conditions, this structure can also achieve the purpose of lightweight. At the same time, as a part of the vehicle body, this structure can also reduce the vibration transmission of the vehicle body to a certain extent and has the characteristics of crash energy absorption, thus improving the safety of the whole vehicle.

[0035] In this embodiment, as Figure 1 shown, the vehicle frame main body further includes a floor cross beam I 2 and a floor cross beam II 3 arranged on the floor longitudinal beam 1. The floor cross beam I 2 is located at the bottom of the reinforcing member I 4, and the floor cross beam II 3 is located at the bottom of the reinforcing member II 5;

[0036] The floor cross beam I 2 and the floor cross beam II 3 extend transversely and are respectively vertically arranged corresponding to the floor longitudinal beam 1; the transverse direction is the width direction of the motor vehicle after the motor vehicle body is applied to the motor vehicle. The direction close to the middle of the motor vehicle in the transverse direction is inwards, and vice versa is outwards, which will not not elaborated here.

[0037] The reinforcing member I and the reinforcing member II are arranged on the inner side of the wheel housing. The floor cross beam I and the floor cross beam II are located on the inner side of the wheel housing and are parallel to the floor longitudinal beam, and are respectively close to the reinforcing member I and the reinforcing member II corresponding to them.

[0038] The connection between the floor cross beam I 2 and the floor cross beam II 3 and the floor longitudinal beam 1 forms the force transmission skeleton of the vehicle frame. And the floor cross beam I 2 is located at the bottom of the reinforcing member I 4 and is close to the reinforcing member I 4, so that the two approximately form the first force transmission path in the front joint. The plane where the first force transmission path is located is approximately perpendicular to the longitudinal direction. The floor cross beam II 3 is located at the bottom of the reinforcing member II 5 and is close to the reinforcing member II 5, so that the two approximately form the second force transmission path in the rear joint. The plane where the second force transmission path is located is approximately perpendicular to the longitudinal direction; the first force transmission path and the second force transmission path constitute a double-ring force transmission structure, which makes the force transmission continuity of the vehicle body structure better, ensures the effective transmission of the force between the body and the vehicle body, especially the force transmission effect in side collision is particularly obvious. The double-ring force transmission structure also improves the overall stiffness of the rear part of the vehicle body, provides a guarantee for the improvement of the performance of the whole vehicle such as NVH performance and handling stability, and further reduces the risk of vibration noise caused by the road surface.

[0039] Of course, the floor cross beam I 2 and the floor cross beam II 3 can also be connected to the floor longitudinal beam in a cross form and respectively correspondingly close to the reinforcement I and the reinforcement II, and a corresponding force transmission structure can also be formed, which will not be described here.

[0040] In the embodiment, as shown in the figure, Figure 1 The motor vehicle body further comprises a reinforcing assembly, the reinforcing assembly comprises a front connecting piece I 6 and a rear connecting piece I 7; the front connecting piece I 6 connects the reinforcement I 4 to the floor longitudinal beam 1, the reinforcement I 4 and the floor cross beam I 2 are close to or connected; the rear connecting piece I 7 connects the reinforcement II 5 to the floor longitudinal beam 1, the reinforcement II 5 and the floor cross beam II 3 are close to or connected. The arrangement of the front connecting piece I 6 and the rear connecting piece I 7 can correspondingly ensure the connection strength of the reinforcement I 4 and the reinforcement II 5 and the floor longitudinal beam 1, further improve the connection rigidity of the connection node and the connection rigidity of the vehicle body main body and the frame main body, meet the force transmission requirement, and improve the NVH performance of the whole vehicle.

[0041] In the embodiment, as shown in the figure, Figure 4 The scheme is applied to the rear section of the motor vehicle body, the wheel cover 12 is located on the lower side of the side wall and connected to the floor longitudinal beam 1; the floor cross beam I 2 is the floor reinforcing cross beam of the current existing frame main body, the front connecting piece I 6 connects the reinforcement I 4 and the floor cross beam I 2 through the floor longitudinal beam 1 to form a whole; the floor cross beam II 3 is the floor lower cross beam of the current frame main body, the rear connecting piece I 7 connects the reinforcement II 5 to the floor longitudinal beam 1 through the floor longitudinal beam 1, and the reinforcement II 5 is close to the floor cross beam II 3; the use of the frame main body makes it only need to adaptively adjust the positions of the reinforcement I 4 and the reinforcement II 5 arranged on the vehicle body main body to meet the above-mentioned corresponding requirements, has better flexibility in arrangement, has small construction difficulty, is easier for model upgrading, has the characteristics of universality, and can reduce the development cost of the motor vehicle.

[0042] In the embodiment, the upper side of the side wall 10 has a front side beam 101 and a rear side beam 102 in the longitudinal direction; the upper side of the side wall 10 also has a corresponding upper side beam 103 and a lower side beam 104 in the height direction, the upper side beam 103 is located above the lower side beam 104, and the upper side of the side wall 10 is connected to the roof longitudinal beam through the upper side beam 103; the front side beam 101, the rear side beam 102, the upper side beam 103 and the lower side beam 104 form a frame structure.

[0043] The reinforcing assembly further comprises a front connecting piece II 8 and a rear connecting piece II 9, the reinforcing piece I 4 and the reinforcing piece II 5 are arranged in parallel inside the wheel cover 12 and correspondingly conform to the wheel cover 12 to form the above-mentioned cavity structure, the top end of the reinforcing piece I 4 is connected to the front side of the lower edge beam 101 of the upper section of the side wall through the front connecting piece II 8, and the top end of the reinforcing piece I 4 is close to the bottom end of the front edge beam 101, and the top end of the reinforcing piece II 5 is connected to the rear side of the lower edge beam 101 of the upper section of the side wall through the rear connecting piece II 9, and the top end of the reinforcing piece II 5 is close to the bottom end of the rear edge beam 102.

[0044] As shown in Figure 5 and Figure 1 , the front connecting piece II 8 and the rear connecting piece II 9 are correspondingly arranged on the wheel cover 12, the top end of the front connecting piece II 8 and the top end of the rear connecting piece II 9 are respectively overlapped on the lower edge beam 104 of the upper section of the side wall 10, and are respectively close to the bottom end of the front edge beam 101 and the bottom end of the rear edge beam 102, respectively; the bottom end of the front connecting piece II 8 and the bottom end of the rear connecting piece II 9 are respectively connected with the reinforcing piece I 4 and the reinforcing piece II 5;

[0045] The front edge beam 101 of the upper section of the side wall 10, the front connecting piece II 8, the reinforcing piece I 4 and the front connecting piece I 6 are continuously connected; the rear edge beam 102 of the upper section of the side wall 10, the rear connecting piece II 9, the reinforcing piece II 5 and the rear connecting piece I 7 are continuously connected; so that the force transmission structure is more reliable, which further improves the force transmission effectiveness of the double-ring structure, and because the upper section of the side wall 10 has the frame structure cooperating with the roof longitudinal beam and the floor longitudinal beam 1, not only forms a force transmission path perpendicular to the longitudinal direction, but also forms a grid-shaped force transmission path perpendicular to the transverse direction, so that the structural rigidity of the motor vehicle body is improved, which provides a guarantee for the improvement of the overall vehicle NVH performance and handling stability.

[0046] In the embodiment, as shown in Figure 2 , Figure 4 and Figure 2 , the motor vehicle body further comprises a wheel cover front reinforcing piece 13 and a wheel cover rear reinforcing piece 14; the wheel cover front reinforcing piece 13 is arranged outside the wheel cover 12, the wheel cover front reinforcing piece 13 overlaps or partially overlaps with the reinforcing piece I 4 in the transverse projection, which improves the force transmission reliability of the reinforcing piece I 4; the wheel cover rear reinforcing piece 14 is arranged outside the wheel cover 12, the wheel cover rear reinforcing piece 14 overlaps or partially overlaps with the reinforcing piece II 5 in the transverse projection, which improves the force transmission reliability of the reinforcing piece II 5. In the scheme, as shown in Figure 4 and Figure 2As shown in the drawings, the wheel cover front reinforcement 13 is in the shape of a strip extending in the height direction, and is arranged on the outer side of the connecting node between the reinforcement I 4 and the front connecting member I 6, thereby forming structural reinforcement for the connecting node, and the wheel cover rear reinforcement 14 is in the shape of a strip extending in the height direction, and is arranged on the outer side of the connecting node between the reinforcement II 5 and the rear connecting member I 7, thereby forming structural reinforcement for the connecting node, which can correspondingly improve the force transmission reliability of the first force transmission path and the second force transmission path; the wheel cover front reinforcement 13 and the wheel cover rear reinforcement 14 are also close to the lateral middle part of the wheel cover 12, and the overall force transmission structure is more compact, the rigidity is satisfied, the structural strength of the vehicle body main body is improved, and the force transmission effectiveness of the vehicle body structure is optimized.

[0047] In the embodiment, the vehicle body main body further comprises a side wall lower section 11 and a side wall reinforcement 15, the side wall lower section 11 is connected to the bottom of the side wall upper section 10, and the wheel cover 12 is arranged on the side wall lower section 11; the side wall reinforcement 15 is arranged on the outer side of the lower side beam 104 to connect the side wall upper section and the side wall lower section, and the side wall reinforcement 15 and the lower side beam 104 overlap or partially overlap in the lateral projection. Figure 4 and Figure 1 As shown in the drawings, the side wall reinforcement 15 is opposite to the lower side beam 104 in the lateral direction and has a similar shape, and the side wall reinforcement 15 also connects the side wall upper section 10 and the side wall lower section 11, so that the structural strength of the vehicle body main body is higher, the force transmission between the vehicle body main body and the frame main body is more stable, and the side wall reinforcement 15 is also used to reinforce the grid-shaped force transmission path structure, thereby improving the force transmission reliability of the reinforcement I 4 and the reinforcement II 5, reducing the cracking of the weak nodes of the force transmission, and improving the safety of the motor vehicle.

[0048] In the embodiment, as shown in the drawings, Figure 4 , Figure 5 and Figure 4 As shown in the drawings, the side wall lower section 11 has a reinforcing plate support end 121 protruding outward, the reinforcing plate support end 121 is close to the side wall reinforcement 15, and the wheel cover 12 protrudes inward at a position corresponding to the reinforcing plate support end 121 to form a hollow functional cavity with the reinforcing plate support end 121, which is generally used for arranging an oil tank opening;

[0049] The reinforcing assembly further comprises a rear section reinforcing plate 16, the rear section reinforcing plate 16 is arranged on the side wall lower section 11 and connects the reinforcing plate support end 121 and the side wall reinforcement 15; the rear section reinforcing plate 16 is located between the side wall reinforcement 15 and the reinforcing plate support end 121 in the height direction, and the rear section reinforcing plate 16 is located at the bottom of the rear side beam 102 of the side wall upper section 10, the reinforcement II 5 is arranged on the inner side of the wheel cover through the rear connecting member on the front side of the reinforcing plate support end 121, and the rear section reinforcing plate 16 is close to the top end of the rear connecting member II 9, so that the rear connecting member II 9 has higher assembly rigidity of the vehicle body main body, and the force transmission effectiveness of the second force transmission path is further improved.

[0050] As shown in Figure 3 The wheel cover 12 is provided with a wheel cover reinforcing beam c, which is in a strip shape parallel to the longitudinal direction, and is arranged on the inner side of the rear section of the wheel cover 12.

[0051] The rear end of the wheel cover reinforcing beam 18 is located at the rear end edge of the wheel cover, and the front end of the wheel cover reinforcing beam 18 is connected to the reinforcing member II 5. The arrangement of the wheel cover reinforcing beam 18 can improve the structural rigidity of the wheel cover 12. Since the reinforcing member II 5 is not directly connected to the floor cross beam II 3, the arrangement of the wheel cover reinforcing beam 18 can also enable the force transmission of the reinforcing member II 5 to be transmitted to the wheel cover reinforcing beam 18 and dispersed to the vehicle body main body, thereby reducing the overload cracking of the reinforcing member II 5 at the assembly joint of the floor longitudinal beam 1, ensuring effective force transmission between the vehicle body and the vehicle body, and improving safety.

[0052] In the embodiment, the reinforcing assembly further comprises a front section reinforcing plate 17, which connects the upper side wall section 10 and the lower side wall section 11.

[0053] The front section reinforcing plate 17 has a reinforcing plate connecting upper section 171 located on the outer side of the front side beam 101, which overlaps or partially overlaps the front side beam 101 in the transverse direction. As shown in ​ The reinforcing plate connecting upper section 171 is arranged on the front side of the upper side wall section 10 in a structure similar to a "T" shape. The "T" shaped reinforcing plate connecting upper section 171 includes a vertical cross beam and a vertical longitudinal beam. The cross beam of the "T" shaped reinforcing plate connecting upper section 171 is connected to the upper side beam 103 of the upper side wall section 10, and the longitudinal beam of the "T" shaped reinforcing plate connecting upper section 171 is connected to the front side beam 101 of the upper side wall section 10. The "T" shape is a structural deformation of the "T" shape, which meets the corresponding connection requirements and position arrangement requirements to achieve the intended function. Therefore, it is not described here.

[0054] The front section reinforcing plate 17 also has a reinforcing plate connecting lower section 172 located on the front side of the reinforcing plate support end 121. The reinforcing plate connecting lower section 172 is arranged on the lower side wall section 11 and connected to the side wall reinforcing member 15. The reinforcing plate connecting lower section 172 is close to the top end of the front connecting member II 8, and the assembly rigidity of the front connecting member II 8 in the vehicle body main body is higher, further improving the force transmission effectiveness of the first force transmission path.

[0055] The present application also discloses a motor vehicle, which comprises the motor vehicle body. The motor vehicle force transmission structure can be optimized to make the force transmission path continuous, ensure the structural rigidity of the vehicle body attachment point, and improve the vibration isolation performance of the vehicle body and the handling and stability performance of the whole vehicle.

[0056] Finally, it is pointed out that the above embodiments are merely intended to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or equivalently replaced without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A motor vehicle body characterised in that: The body main body and the frame main body; The frame main body comprises a floor longitudinal beam and a roof longitudinal beam, and the roof longitudinal beam is above the floor longitudinal beam; The body main body comprises a side wall panel and a wheel cover which are assembled to form a whole, the side wall panel comprises a side wall upper section connected to the roof longitudinal beam, and the wheel cover is connected to the floor longitudinal beam at the bottom of the side wall upper section; It also comprises a reinforcing member I and a reinforcing member II which are arranged in parallel to the wheel cover, and the reinforcing member I and the reinforcing member II are respectively connected to the floor longitudinal beam and the side wall upper section.

2. Motor vehicle body according to claim 1, characterized in that: The frame main body further comprises a floor cross beam I and a floor cross beam II arranged on the floor longitudinal beam, the floor cross beam I is at the bottom of the reinforcing member I, and the floor cross beam II is at the bottom of the reinforcing member II.

3. Motor vehicle body according to claim 2, characterized in that: The reinforcing member I and the reinforcing member II are arranged on the inner side of the wheel cover, the floor cross beam I and the floor cross beam II are arranged in parallel to the floor longitudinal beam on the inner side of the wheel cover, and are respectively close to the reinforcing member I and the reinforcing member II.

4. Motor vehicle body according to claim 2, characterized in that: It also comprises a reinforcing assembly, the reinforcing assembly comprises a front connecting member I and a rear connecting member I, the front connecting member I connects the reinforcing member I to the floor longitudinal beam, the reinforcing member I is close to or connected to the floor cross beam I, and the rear connecting member I connects the reinforcing member II to the floor longitudinal beam, the reinforcing member II is close to or connected to the floor cross beam II.

5. Motor vehicle body according to claim 1, characterized in that: It also comprises a front wheel cover reinforcing member and a rear wheel cover reinforcing member, the front wheel cover reinforcing member is arranged on the outer side of the wheel cover, the front wheel cover reinforcing member overlaps or partially overlaps the reinforcing member I in the transverse projection, the rear wheel cover reinforcing member is arranged on the outer side of the wheel cover, and the rear wheel cover reinforcing member overlaps or partially overlaps the reinforcing member II in the transverse projection.

6. Motor vehicle body according to claim 4, characterized in that: The reinforcing assembly further comprises a front connecting member II and a rear connecting member II, the top end of the reinforcing member I is connected to the side wall upper section through the front connecting member II, and the top end of the reinforcing member II is connected to the side wall upper section through the rear connecting member II.

7. Motor vehicle body according to claim 6, characterized in that The side wall upper section has a front side beam in front in the longitudinal direction and a rear side beam, and has an upper side beam and a lower side beam which are oppositely arranged in the height direction, and the front side beam, the rear side beam, the upper side beam and the lower side beam form a frame structure; The upper side beam is connected to the roof longitudinal beam, the front connecting member II and the rear connecting member II are respectively connected to the side wall upper section through the lower side beam, the top end of the reinforcing member I is close to the bottom end of the front side beam, and the top end of the reinforcing member II is close to the bottom end of the rear side beam.

8. Motor vehicle body according to claim 7, characterized in that: The body main body further comprises a side wall lower section and a side wall reinforcing member, the side wall lower section is connected at the bottom of the side wall upper section, the side wall reinforcing member is arranged on the outer side of the lower side beam to connect the side wall upper section and the side wall lower section, and the side wall reinforcing member overlaps or partially overlaps the lower side beam in the transverse projection.

9. Motor vehicle body according to claim 8, characterized in that: The side wall lower section has a reinforcing plate support end which is outwardly protruding, the reinforcing assembly further comprises a rear reinforcing plate, and the rear reinforcing plate is arranged on the side wall lower section to connect the reinforcing plate support end and the side wall reinforcing member.

10. Motor vehicle body according to claim 8, characterized in that: The reinforcing assembly further comprises a front reinforcing plate, the front reinforcing plate connects the side wall upper section and the side wall lower section, and the front reinforcing plate has a reinforcing plate connecting upper section which is on the outer side of the front side beam and overlaps or partially overlaps the front side beam in the transverse projection.

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