Threshold beam assembly structure and vehicle body

Abstract

The application provides a threshold beam assembly structure and a vehicle body. The threshold beam assembly structure comprises an integrally formed threshold beam body, an upper part of the threshold beam body is provided with a reserved area and a milled area, the milled area comprises a first milled area and a second milled area, the first milled area is provided with a front-row step mounting plate, and the second milled area is provided with a rear-row step mounting plate and a guide rail assembly. The front and rear rows of steps and the guide rail assembly are connected with the threshold beam body by arranging the reserved area and the milled area on the integrally formed threshold beam body, the number of parts is reduced while the functions are integrated, and the lightweight design of the threshold beam structure is realized.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile manufacturing, in particular to a rocker beam assembly structure and a vehicle body. BACKGROUND

[0002] With the wide popularity of pure electric new energy vehicles, the anxiety of consumers about the endurance mileage of the vehicles also increases. In order to improve the endurance mileage of the electric vehicles, the vehicle manufacturers continuously strive to reduce the weight of the vehicles. The rocker beam, as a key component of the vehicle body, has great significance for reducing the weight of the vehicle in terms of lightweight structure design and lightweight material use. In the traditional MPV vehicle, the structure of the rocker beam is relatively complex, and needs to meet the installation requirements of the sliding door and bear the force transmission and energy absorption during the vehicle collision. Therefore, the traditional rocker beam is formed by welding of a plurality of sheet metal longitudinal beams and reinforcing members, and the rocker beam has a large number of parts and a complicated connection process, and is difficult to meet the design requirements of lightweight.

[0003] Therefore, it is necessary to provide a rocker beam assembly structure and a vehicle body to solve the above problems. SUMMARY

[0004] The application provides a rocker beam assembly structure with integrated functions and lightweight, and a vehicle body with the rocker beam assembly structure.

[0005] The application discloses a rocker beam assembly structure, which comprises an integrally formed rocker beam body, an upper portion of the rocker beam body is provided with a reserved area and a milled area, the milled area comprises a first milled area and a second milled area, the first milled area is provided with a front-row step mounting plate, and the second milled area is provided with a rear-row step mounting plate and a guide rail assembly.

[0006] Further, the reserved area comprises a first reserved area and a second reserved area, the first reserved area is arranged at a front end of the rocker beam body, and the second reserved area is arranged at a middle portion of the rocker beam body; the first reserved area is provided with an A-pillar lower inner plate, and the second reserved area is provided with a B-pillar lower inner plate.

[0007] Further, the guide rail assembly comprises a guide rail support plate and a rear sliding door guide rail, the rear sliding door guide rail is located above the guide rail support plate, and the rear sliding door guide rail is connected with the rear-row step mounting plate.

[0008] Further, a front end of the guide rail support plate is suspended, the rocker beam assembly structure is correspondingly provided with a sealing plate, the sealing plate is connected with the rocker beam body and the rear-row step mounting plate, and then the guide rail support plate and the rear sliding door guide rail are located in a sealed cavity.

[0009] Further, the bottom of the threshold beam body is provided with a battery pack mounting assembly, which comprises a battery pack mounting long nut plate, a battery pack mounting short nut plate and a projection welding nut.

[0010] Further, the bottom of the threshold beam body is provided with a third milling area and a fourth milling area, and the third milling area and the fourth milling area are provided with an electric step mounting assembly.

[0011] Further, the bottom of the threshold beam body is provided with a jack mounting bracket and a coating hanging bracket, and the jack mounting bracket is arranged at both sides of the bottom of the threshold beam body.

[0012] Further, the rear end of the threshold beam body is provided with an inflatable rubber block for sealing, and the inflatable rubber block is clamped with the threshold beam body; and the front end of the threshold beam body is sealed by a front row step mounting plate.

[0013] Further, the threshold beam body is formed by extrusion molding and has nine cavities, and the nine cavities are distributed in four layers, and the number of cavities in each layer from top to bottom is one, two, three and three.

[0014] The application further discloses a vehicle body comprising the threshold beam assembly structure.

[0015] Compared with the prior art, the application provides a reserved area and a milling area on the integrally formed threshold beam body, provides mounting positions for a front row step mounting plate, a rear row step mounting plate and a guide rail assembly, realizes the design of height difference of front and rear rows of steps, the connection of the guide rail assembly and the threshold beam body, and simultaneously realizes the functional integration and the lightweight design of the threshold beam structure.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present specification. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings incorporated into the specification and forming part of the specification, show embodiments consistent with the present specification, and together with the specification, serve to explain the principles of the present specification.

[0018] Figure 1 is a perspective view of the threshold beam assembly structure of the application.

[0019] Figure 2 is a perspective view of the threshold beam assembly structure of the application with some elements removed.

[0020] Figure 3 is a right view of the threshold beam body of the application.

[0021] Figure 4 is a perspective exploded view of the threshold beam body and the bottom mounting assembly thereof.

[0022] Figure 5 is a side view of the threshold beam body of the present application.

[0023] Figure 6 is a top view of the threshold beam body of the present application.

[0024] BRIEF DESCRIPTION OF DRAWINGS: threshold beam assembly, 100; threshold beam body, 10; first reserved area, 11; second reserved area, 12; B-pillar lower inner panel, 121; first milled area, 13; second milled area, 14; third milled area, 15; fourth milled area, 16; front row step mounting plate, 20; rear row step mounting plate, 30; guide rail assembly, 40; guide rail support plate, 41; sealing plate, 410; rear sliding door guide rail, 42; battery pack mounting assembly, 50; battery pack mounting long nut plate, 51; battery pack mounting short nut plate, 52; projection welded nut, 53; drawn rivet, 54; electric step mounting nut plate, 60; jack mounting bracket, 70; painting hanger bracket, 80; expansion block, 90. DETAILED DESCRIPTION

[0025] The exemplary embodiments are described herein with reference to particular embodiments for purposes of description, but not for purposes of limitation. The description is not intended to include all embodiments within the scope of the disclosure. Indeed, since the disclosure can be practiced in many embodiments other than the specifically described embodiments, the disclosure is not intended to be limited to the particular forms disclosed. Like numbers refer to like elements in the figures.

[0026] The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to limit the disclosure. As used in the description of the embodiments and the appended claims, the singular forms "a", "an" and "the" are intended to include both singular and plural forms, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0027] It will be understood that, although the terms first, second, third, etc. can be used herein to describe various information, these terms are not intended to denote a temporal or chronological order. Rather, these terms are used only as a shorthand notation to first, second, third, etc. information. For example, a first information can also be termed a second information, and similarly, a second information can also be termed a first information, without departing from the scope of the present disclosure. Depending on the context, the word "if' as used herein can be interpreted to mean "when" or "in response to determining" or "in response to a determination".

[0028] The embodiments of the present disclosure are described in detail below.

[0029] As shown in Figures 1 to 4 The present application provides a rocker beam assembly structure 100, which comprises a rocker beam body 10, a front step mounting plate 20, a rear step mounting plate 30, a guide rail assembly 40, a battery pack mounting assembly 50, an electric step mounting assembly, a jack mounting bracket 70, a coating hanging bracket 80 and an expansion block 90.

[0030] In the illustrated embodiment, the rocker beam body 10 is an aluminum profile, which is integrally extruded and has nine cavities, which are distributed in four layers, and the number of cavities in each layer from top to bottom is one, two, three and three.

[0031] The upper part of the rocker beam body 10 is provided with a first reserved area 11 and a second reserved area 12. The first reserved area 11 is arranged at the front end of the rocker beam body 10, and the second reserved area 12 is arranged at the middle part of the rocker beam body 10. The first reserved area 11 is connected with the A-pillar lower inner panel (not shown) by bolts, which solves the problem of connection by welding process and improves the connection strength of the A-pillar joint, thereby improving the crash performance.

[0032] The second reserved area 12 is connected with the B-pillar lower inner panel 121 through FDS. In side column collision, the second reserved area 12 can transmit more collision force and absorb more collision energy through its own deformation, thereby reducing the intrusion amount of the B-pillar and improving the crash performance of the side column. The second reserved area 12 simultaneously provides Z-direction support for the front step mounting plate 20 and the rear step mounting plate 30.

[0033] Please also refer to Figures 5 to 6 As shown in the figure, the upper part of the rocker beam body 10 is provided with a first milling area 13 and a second milling area 14. The first milling area 13 is arranged between the first reserved area 11 and the second reserved area 12, and the second milling area 14 is arranged at the middle and rear parts of the rocker beam body 10. The first milling area 13 provides mounting space for the front step mounting plate 20, and the second milling area 14 provides mounting space for the rear step mounting plate 30 and the guide rail assembly 40. The bottom of the rocker beam body 10 is provided with a third milling area 15 and a fourth milling area 16, which provide mounting space for the electric step mounting assembly.

[0034] In the preferred embodiment, the front step mounting plate 20 is mounted on the first milling area 13 through FDS, and the rear step mounting plate 30 is mounted on the second milling area 14 through FDS. Because the milling shapes of the first milling area 13 and the second milling area 14 are different, the front step mounting plate 20 and the rear step mounting plate 30 can be designed with different Z-direction heights.

[0035] In the illustrated embodiment, the guide rail assembly 40 is connected to the second milling area 14 through the FDS, and the guide rail assembly 40 includes a guide rail support plate 41 and a rear sliding door guide rail 42. The front end of the guide rail support plate 41 is suspended, and the rocker beam assembly structure is correspondingly provided with a sealing plate 410. The sealing plate 410 is connected with the rocker beam body 10 and the rear row step mounting plate 30, so that the guide rail support plate 41 and the rear sliding door guide rail 42 are located in a sealed cavity.

[0036] The rear sliding door guide rail 42 is located above the guide rail support plate 41, and the rear sliding door guide rail 42 is connected with the rear row step mounting plate 30 through spot welding, and can be assembled together in the Z direction after connection to the rocker beam body 10.

[0037] In the embodiment, the battery pack mounting assembly 50 is arranged at the bottom of the rocker beam body 10, and is used to provide a mounting point for the battery pack. The battery pack mounting assembly includes a battery pack mounting long nut plate 51, a battery pack mounting short nut plate 52, and a projection welding nut 53. The battery pack mounting assembly 50 is connected with the rocker beam body 10 through a cored rivet 54.

[0038] The electric step mounting assembly includes an electric step mounting nut plate 60 and a projection welding nut 53. The electric step mounting nut plate 60 is welded with the projection welding nut 53, and is connected with the third milling area 15 and the fourth milling area 16 through the cored rivet 54. The electric step mounting assembly provides a mounting point for the electric step, thereby realizing the integration of the battery pack and the electric step functions.

[0039] The jack mounting bracket 70 is arranged at the bottom of both sides of the rocker beam body 10. The jack mounting bracket 70 is fixed with the rocker beam body 10 through the cored rivet 54, and is used as a support point for the jack during maintenance. The coating hanging bracket 80 is fixed with the bottom of the rocker beam body 10 through the cored rivet 54, and provides a mounting point and a transportation lifting point for the body-in-white electrophoresis.

[0040] The expansion rubber block 90 is connected with the rear end of the rocker beam body 10, and realizes the sealing of the rear end of the rocker beam body 10. The front end of the rocker beam body 10 is sealed through the front row step mounting plate 20, thereby realizing the isolation of the entry of external water.

[0041] The embodiment also provides a vehicle body, which includes the above-mentioned rocker beam assembly structure 100.

[0042] By arranging the reserved area and the milling area on the integrally extruded rocker beam body 10, the crash performance of the vehicle body is improved. The front and rear row step mounting plates, the guide rail assembly 40 and the electric step are arranged in the milling area, thereby realizing the design of the height difference between the front and rear row steps, the integration of the battery pack and the electric step functions, reducing the complexity of the connection process, and meeting the lightweight design of the rocker beam structure.

[0043] Meanwhile, the rib design freedom of the inner cavity of the rocker beam body 10 in the application is high, can be designed independently without affecting the surrounding parts, thereby better meeting the crash performance. The rocker beam assembly structure can be changed according to product requirements without changing the mold, only by adjusting the machining program, the design change of the product can be realized, and the design freedom is high.

[0044] It should be understood that the present specification is not limited to the precise construction which has been described above and illustrated in the accompanying drawings, and that various modifications and changes can be made without departing from the scope thereof. The only scope of the present specification is limited by the appended claims.

[0045] The above only describes the preferred embodiments of the present application, and does not limit the present application in any form, although the present application has been disclosed as above, but not to limit the present application, any skilled person in the art, within the scope of the technical scheme of the present application, can make some changes or modifications of the equivalent embodiments by using the disclosed technical content, but as long as it does not deviate from the content of the technical scheme of the present application, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are still within the scope of the technical scheme of the present application.

Claims

1. A rocker rail assembly structure, characterized by, The door sill beam assembly comprises a door sill beam body, an upper part of the door sill beam body is provided with a reserved area and a milling area, the milling area comprises a first milling area and a second milling area, the first milling area is provided with a front step mounting plate, and the second milling area is provided with a rear step mounting plate and a guide rail assembly. The reserved area comprises a first reserved area and a second reserved area, the first reserved area is arranged at a front end of the door sill beam body, and the second reserved area is arranged at a middle part of the door sill beam body; the first reserved area is provided with an A-pillar lower inner plate, and the second reserved area is provided with a B-pillar lower inner plate. The guide rail assembly comprises a guide rail support plate and a rear sliding door guide rail, the rear sliding door guide rail is arranged above the guide rail support plate, and the rear sliding door guide rail is connected with the rear step mounting plate. A front end of the guide rail support plate is suspended, and the door sill beam assembly structure is provided with a sealing plate correspondingly, the sealing plate is connected with the door sill beam body and the rear step mounting plate, so that the guide rail support plate and the rear sliding door guide rail are arranged in a sealed cavity.

2. The rocker rail assembly structure of claim 1, wherein The milling shapes of the first milling area and the second milling area are different.

3. The rocker rail assembly structure of claim 1, wherein, A bottom part of the door sill beam body is provided with a battery pack mounting assembly, the battery pack mounting assembly comprises a battery pack mounting long nut plate, a battery pack mounting short nut plate and a projection welding nut.

4. The rocker rail assembly structure of claim 1, wherein A bottom part of the door sill beam body is provided with a third milling area and a fourth milling area, the third milling area and the fourth milling area are provided with an electric step mounting assembly.

5. The rocker rail assembly structure of claim 1, wherein, A bottom part of the door sill beam body is provided with a jack mounting bracket and a coating hanging bracket, the jack mounting bracket is arranged at both sides of the bottom part of the door sill beam body.

6. The rocker rail assembly structure of claim 1, wherein A rear end of the door sill beam body is provided with an expansion rubber block for sealing, the expansion rubber block is clamped with the door sill beam body; and a front end of the door sill beam body is sealed by the front step mounting plate.

7. The rocker rail assembly structure of claim 1, wherein The door sill beam body is formed by extrusion molding and has nine cavities, the nine cavities are arranged in four layers, and the number of cavities in each layer from top to bottom is one, two, three and three.

8. A vehicle body, characterized by The door sill beam assembly structure comprises the door sill beam assembly structure according to any one of claims 1-7. The door sill beam assembly structure comprises the door sill beam assembly structure according to any one of claims 1-7.

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