CN218258363U - Threshold roof beam, threshold assembly and vehicle - Google Patents

Abstract

The application provides threshold roof beam, threshold assembly and vehicle, the threshold roof beam includes: the integrated into one piece just is equipped with the threshold roof beam main part of inner chamber, and threshold roof beam main part is provided with the first installation face that is applicable to and connects upper automobile body B post to and be applicable to the second installation face of installation sliding door lower drive mounting panel assembly. The application provides a threshold roof beam, threshold assembly and vehicle will be simplified into integrated connection fashioned threshold roof beam main part by the current threshold roof beam that numerous parts combination welding formed, fundamentally has solved the frock cost that the structure that forms by numerous parts combination brought and has dropped into height, welding complicacy and size precision subalternation problem. Meanwhile, the sill beam main body is provided with the inner cavity, so that the self weight of the sill beam main body is reduced, and the hidden cost of logistics, production management and the like is saved. In addition, the first installation surface and the second installation surface are used as installation positions of parts to be installed, so that the existing doorsill beam can be replaced functionally.

Description

Threshold roof beam, threshold assembly and vehicle

Technical Field

The application relates to the technical field of vehicles, especially, relate to a threshold roof beam, threshold assembly and vehicle.

Background

A Multi-Purpose vehicle (MPV) type rocker assembly is composed of a rocker beam and a sliding door lower drive mounting plate assembly, as shown in fig. 1 and 2. In the related art, the threshold beam is formed by welding eighteen parts, in total, of a front threshold inner plate section, a middle threshold inner plate section, a rear threshold inner plate section, a front threshold outer plate section, a middle threshold outer plate section, a rear threshold outer plate section, an upper left reinforcing plate, a lower left reinforcing plate, an upper right reinforcing plate, a lower right reinforcing plate and eight internal reinforcing plates, as shown in fig. 3. Just because the threshold roof beam is formed by above-mentioned a plurality of parts, and every part all needs development mould alone, and the frock input cost is higher. A plurality of parts are welded and fixed with each other, a large number of welding spots are needed, on one hand, the production and welding cost is high, on the other hand, welding matching tolerance must exist between two connected parts, the welding matching tolerance can be accumulated and overlapped continuously through the combined welding of the parts, and finally, the size precision of the doorsill beam and the doorsill assembly is poor. In addition, the number and the weight of parts are large, so that the hidden cost of logistics, production management and the like is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a threshold beam, a threshold assembly and a vehicle, so as to simplify the structure of the threshold beam and fundamentally solve the problems caused by the assembly welding structure of a plurality of parts.

Based on the above-mentioned purpose, this application provides a threshold roof beam, includes: integrated into one piece just is equipped with the threshold roof beam main part of inner chamber, threshold roof beam main part is provided with the first installation face that is applicable to and connects upper automobile body B post to and be applicable to the second installation face of installation sliding door lower drive mounting panel assembly.

Further, the second mounting surface is lower than the first mounting surface and is suitable for being matched with a structure of a body-in-white.

Further, threshold roof beam main part includes first roof beam section and second roof beam section along length direction, first roof beam section is equipped with the match plate that divides its inner chamber into epicoele and cavity of resorption, the match plate is followed the length direction of first roof beam section extends, and with second installation face integrated into one piece connects.

Furthermore, upper partition plate groups which are staggered horizontally and vertically are arranged in the upper cavity of the first beam section, and the upper partition plate groups extend along the length direction of the first beam section; the upper partition plate group is fixedly connected with the inner wall of the upper cavity, so that the upper cavity is divided into a plurality of upper sub-cavities.

Further, the thickness of the wall of the rocker beam body, the thickness of the parting plate, and the thickness of each plate in the upper partition plate group are all 2 to 6mm.

Furthermore, a lower partition plate group which is staggered horizontally and vertically is arranged in a lower cavity of the first beam section, and the lower partition plate group extends along the length direction of the first beam section; the lower partition plate group is fixedly connected with the inner wall of the lower cavity, so that the lower cavity is divided into a plurality of lower sub-cavities.

Furthermore, the bottom separation plate group extends into the inner cavity of the second beam section, so that the inner cavity of the second beam section is divided into a plurality of second bottom separation cavities.

Further, the plate thickness of each plate in the lower partition plate group is 2 to 6mm.

Further, the first mounting surface includes a first inclined surface and a second inclined surface.

Further, the sill beam body comprises a first beam section and a second beam section along a length direction; an upper partition plate group which is staggered transversely and vertically is arranged in the upper cavity of the first beam section and extends along the length direction of the first beam section; the upper partition plate group is fixedly connected with the inner wall of the upper cavity, so that the upper cavity is divided into a plurality of upper sub-cavities; the cross section of the upper sub-cavity adjacent to the first inclined surface and the second inclined surface is trapezoidal.

Based on the same inventive concept, the application also provides a threshold assembly, an upper joint, a transverse joint, a sliding door lower driving mounting plate assembly and the threshold beam; the upper joint is fixedly connected to the joint of the first mounting surface and the second mounting surface and is suitable for being connected with an upper vehicle body B column; the transverse joint is fixedly connected to the side wall of the threshold beam main body and is suitable for being connected with a seat transverse beam; and the lower driving mounting plate assembly of the sliding door is fixedly connected to the second mounting surface.

Further, in the radial cross section of the doorsill beam, the upper joint, the cross joint and the doorsill beam respectively form a plurality of closed cavities with the body in white.

Further, a plurality of the closed cavities are arranged adjacently and continuously.

Furthermore, the axis of the threshold beam, the axis of the upper joint and the axis of the transverse joint are perpendicular to each other in pairs.

Further, still include along the length direction fixed connection of threshold roof beam main part the welding bridging board of first installation face.

Based on the same inventive concept, the application also provides a vehicle comprising the threshold assembly.

The application provides a threshold roof beam, threshold assembly and vehicle will be simplified into integrated connection fashioned threshold roof beam main part by the current threshold roof beam that numerous parts combination welding formed, fundamentally has solved the frock cost that the structure that forms by numerous parts combination brought and has dropped into height, welding complicacy and size precision subalternation problem. Meanwhile, the sill beam main body is provided with the inner cavity, so that the self weight of the sill beam main body is reduced, and the hidden cost of logistics, production management and the like is saved. In addition, the first installation face and the second installation face that threshold roof beam main part set up are regarded as the installation position of each spare part of treating the installation, make this application still can satisfy with the installation demand of other spare parts when simplifying the structure, can realize the replacement to current threshold roof beam in the function.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of a prior art threshold assembly;

FIG. 2 is an exploded view of a prior art threshold assembly;

FIG. 3 is an exploded view of a prior art rocker beam;

FIG. 4 is a schematic view of a rocker beam according to an embodiment of the present application;

FIG. 5 isbase:Sub>A schematic cross-sectional view taken along plane A-A of FIG. 4;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 4;

FIG. 7 is a schematic illustration of a body in white with a prior art rocker assembly installed;

FIG. 8 is a schematic view of a threshold assembly according to an embodiment of the present application;

FIG. 9 is an exploded view of a threshold assembly according to an embodiment of the present application;

FIG. 10 is a schematic view of the upper joint, the cross joint, and the rocker beam of the rocker assembly of the present application in relation to the coordinate system of the vehicle body;

FIG. 11 is a schematic view of a rocker assembly of an embodiment of the present application mounted to a body in white;

FIG. 12 is a schematic cross-sectional view taken along the plane C-C in FIG. 11;

FIG. 13 is a schematic view of another orientation of a rocker assembly according to an embodiment of the present application;

FIG. 14 is a schematic cross-sectional view taken along plane D-D of FIG. 13;

FIG. 15 is a schematic view of the assembly of a threshold beam and a lower drive mounting plate assembly of a threshold assembly according to an embodiment of the present application;

FIG. 16 is a schematic view of the installation of the under-door-slide drive mounting plate assembly and the under-door-slide drive mechanism of the threshold assembly of the present application.

Description of reference numerals:

1. a threshold beam; 1-1, a sill beam body; 1-1-1, a first beam section; 1-1-2, a second beam section; 1-1-3, a first mounting surface; 1-1-3-1, a first inclined plane; 1-1-3-2, a second inclined plane; 1-1-4, a second mounting surface; 1-1-5, an upper chamber; 1-1-5-1, an upper sub-cavity; 1-1-6, lower cavity; 1-1-6-1, a first lower subchamber; 1-1-6-2 and a second lower sub-cavity;

1-2, parting plates;

1-3, an upper partition plate group;

1-4, a lower partition plate group;

2. an upper joint; 3. a transverse joint; 4. the lower driving mounting plate assembly of the sliding door; 5. welding a bridging plate; 6. a body-in-white; 6-1, mounting a B column of the vehicle body; 6-2, a seat beam; 7. a lower sliding door driving mechanism; 8. a lower longitudinal beam; 9. a floor panel; 10. a side wall reinforcing plate;

11. a side outer plate; 12. an existing threshold assembly; 12-1, existing sill beam; 13. and (7) welding points.

Detailed Description

In order that the above-mentioned objects, features and advantages of the present application may be more clearly understood, the solution of the present application will be further described below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein; it is to be understood that the embodiments described in this specification are only some embodiments of the present application and not all embodiments.

In view of this, as shown in fig. 4, the present embodiment provides a rocker beam 1 including: the sill beam comprises a sill beam main body 1-1 which is integrally formed and provided with an inner cavity, wherein the sill beam main body is provided with a first mounting surface 1-1-3 suitable for being connected with an upper vehicle body B-pillar 6-1 and a second mounting surface 1-1-4 suitable for being mounted with a sliding door lower driving mounting plate assembly 4.

Alternatively, the rocker 1 of the embodiment is formed by a metal profile extrusion process.

Optionally, the threshold beam 1 of the present embodiment is formed by an aluminum profile extrusion process.

In order to provide mounting locations for the upper body B-pillar 6-1 and the lower sliding door drive mounting plate assembly 4, respectively, the rocker beam 1 of the present embodiment is provided with a first mounting surface 1-1-3 and a second mounting surface 1-1-4.

According to the threshold beam 1 provided by the embodiment, the existing threshold beam 12-1 formed by combining and welding a plurality of parts is simplified into the integrally formed threshold beam main body 1-1, so that the problems of high tool cost input, complex welding, poor dimensional accuracy and the like caused by a structure formed by combining a plurality of parts are fundamentally solved. Meanwhile, the threshold beam main body 1-1 is provided with an inner cavity, so that the self weight of the threshold beam main body is reduced, and the hidden cost of logistics, production management and the like is saved. In addition, the first installation surface 1-1-3 and the second installation surface 1-1-4 arranged on the threshold beam main body 1-1 are used as installation positions of all parts to be installed, so that the threshold beam 1 of the embodiment can still meet installation requirements of other parts while the structure is simplified, and the existing threshold beam 12-1 can be replaced functionally.

In some embodiments, the second mounting surface 1-1-4 is lower than the first mounting surface 1-1-3, as shown in FIG. 4, and is adapted to match the structure of the body-in-white 6.

Optionally, the axial length of the second mounting surface 1-1-4 matches the axial length of the lower sliding door drive mounting plate assembly 4.

A height difference is arranged between the first mounting surface 1-1-3 and the second mounting surface 1-1-4 according to the mounting requirement of the under-sliding door driving mounting plate assembly 4, so that the threshold beam main body 1-1 and the under-sliding door driving mounting plate assembly 4 mounted on the threshold beam main body 1-1 can be matched with the structure of a white vehicle body 6.

As shown in fig. 4, 5 and 6, in some embodiments, the rocker beam body 1-1 includes a first beam section 1-1-1 and a second beam section 1-1-2 along a length direction, the first beam section 1-1-1 is provided with a parting plate 1-2 dividing an inner cavity thereof into an upper cavity 1-1-5 and a lower cavity 1-1-6, and the parting plate 1-2 extends along the length direction of the first beam section 1-1-1 and is integrally connected with the second mounting surface 1-1-4.

Optionally, the threshold beam 1 of the present embodiment is an aluminum profile extruded through a port die.

In the initial forming stage of the profile, the sill beam body 1-1 has the same structure as the first beam section 1-1-1, as shown in fig. 5. After the forming is completed, the structure on the parting plate 1-2 within a partial length range is removed by machining such as cutting from one end of the rocker beam body 1-1 as a starting end according to the length and mounting position requirements of the lower driving mounting plate assembly 4 of the sliding door, as shown in fig. 6. In the rocker beam body 1-1, the portion subjected to the cutting work forms a second beam section 1-1-2, and a parting plate 1-2 partially exposed at the second beam section 1-1-2 serves as a second mounting surface 1-1-4. The part which is not machined is used as a first beam section 1-1-1, and the top of the first beam section 1-1-1 forms a first mounting surface 1-1-3.

The rocker beam body 1-1 of the present embodiment is formed by extrusion in the same structure at an initial stage, and is divided into a first beam section 1-1-1 and a second beam section 1-1-2 by machining at a later stage. Therefore, the integral forming of the threshold beam main body 1-1 can be completed by only one port die, and the processing technology in the forming stage is facilitated to be simplified. Meanwhile, the positions of the first beam section 1-1-1 and the second beam section 1-1-2 can be flexibly divided according to the sizes of parts to be mounted, and the same threshold beam main body 1-1 can be processed into various structures suitable for mounting different parts, so that the threshold beam main body has stronger universality.

As shown in FIG. 5, in some embodiments, the upper chamber 1-1-5 of the first beam segment 1-1-1 is provided with an upper set of baffle plates 1-3 which are staggered vertically and horizontally, and the upper set of baffle plates 1-3 extends along the length of the first beam segment 1-1-1; the upper partition plate group 1-3 is fixedly connected with the inner wall of the upper cavity 1-1-5, so that the upper cavity 1-1-5 is divided into a plurality of upper sub-cavities 1-1-5-1.

Optionally, the upper partition plate group 1-3 includes a horizontal partition plate and a vertical partition plate, which divide the upper chamber 1-1-5 into four upper sub-chambers 1-1-5-1.

Optionally, the cross-sectional shape of the upper cavity 1-1-5 (or the overall cross-sectional shape formed by the upper sub-cavities 1-1-5-1) is matched with the outer contour shape of the first beam section 1-1-1.

The upper set of separator plates 1-3 extends from one end of the first beam section 1-1-1 to the other. On one hand, the upper partition plate group 1-3 can play an internal supporting role for the threshold beam main body 1-1, and the grid structure has good mechanical performance in all directions under stress, so that the threshold beam main body has light weight and high strength. On the other hand, the upper cavity 1-1-5 is divided into a plurality of upper sub-cavities 1-1-5-1, and the characteristics of noise reduction and sound insulation can be further provided.

As shown in FIG. 5, in some embodiments, the lower cavity 1-1-6 of the first beam section 1-1-1 is provided with a lower partition plate group 1-4 which is staggered horizontally and vertically, and the lower partition plate group 1-4 extends along the length direction of the first beam section 1-1-1; the lower partition plate group 1-4 is fixedly connected with the inner wall of the lower cavity 1-1-6, so that the lower cavity 1-1-6 is divided into a plurality of first lower sub-cavities 1-1-6-1.

Optionally, the lower partition plate group 1-4 comprises a transverse partition plate and a longitudinal partition plate, which divide the lower chamber 1-1-6 into four first lower subchambers 1-1-6-1.

The function of the lower partition plate group 1-4 in the lower cavity 1-1-6 of the first beam section 1-1-1 is similar to the function of the upper partition plate group 1-3 and will not be described again.

As shown in fig. 6, in some embodiments, the lower set of separator plates 1-4 extends into the interior cavity of the second beam segment 1-1-2 such that the interior cavity of the second beam segment 1-1-2 is divided into a plurality of second lower subchambers 1-1-6-2.

Optionally, the cross-sectional shape of the inner cavity of the second beam section 1-1-2 (or the overall cross-sectional shape formed by the second lower sub-cavities 1-1-6-2) is matched with the outer contour shape of the second beam section 1-1-2.

Optionally, the lower set of division plates 1-4 extends from one end of the sill beam body 1-1 to the other, in other words, the lower set of division plates 1-4 is consecutively arranged inside the lower cavity 1-1-6 of the first beam section 1-1-1 and inside the inner cavity of the second beam section 1-1-2.

In the process of machining the part of the second beam section 1-1-2, the lower partition plate group 1-4 extending into the inner cavity of the second beam section 1-1-2 can support and protect the appearance of the second beam section 1-1-2, and the damage to the appearance of the second beam section 1-1-2 caused by a clamping procedure is prevented.

As shown in FIG. 5, in some embodiments, the first mounting surface 1-1-3 includes a first angled surface 1-1-3-1 and a second angled surface 1-1-3-2.

In order to adapt to the parts mounted on the sill beam body 1-1, a first inclined surface 1-1-3-1 and a second inclined surface 1-1-3-2 are arranged on the two sides of the first mounting surface 1-1-3 respectively along the radial direction of the sill beam body 1-1.

The first inclined surface 1-1-3-1 and the second inclined surface 1-1-3-2 can ensure that no interference occurs between parts needing to be installed and the sill beam main body 1-1, and further ensure that no redundant stress exists between the parts after installation and the sill beam main body 1-1.

As shown in FIG. 5, in some embodiments, the upper subchamber 1-1-5-1 adjacent to the first chamfer 1-1-3-1 and the second chamfer 1-1-3-2 has a trapezoidal cross-sectional shape.

For the exemplary illustration of the structure of the first beam section 1-1-1 shown in fig. 5, two upper subchambers 1-1-5-1 located above are respectively adjacent to the first inclined surface 1-1-3-1 and the second inclined surface 1-1-3-2, and the cross section of the two upper subchambers 1-1-5-1 is trapezoidal; while the remaining two lower upper subchambers 1-1-5-1 are rectangular in cross-section. The structure can ensure that the force transmission path of the first beam section 1-1-1 is more stable when the first beam section is stressed, and the first beam section has good mechanical performance in stress in all directions.

As shown in fig. 5 and 6, in some embodiments, the thickness of the wall of the rocker body 1-1, the thickness of the parting plate 1-2, the thickness of each plate in the upper group of division plates 1-3, and the thickness of each plate in the lower group of division plates 1-4 are each 2 to 6mm.

Optionally, the sill beam main body 1-1, the parting plate 1-2, the upper partition plate group 1-3, and the lower partition plate group 1-4 are all plate-shaped structures with uniform thickness or are composed of plate-shaped structures with uniform thickness.

A preferred range is 2 to 6mm in thickness for each of the plate-like structures. If the thickness is thicker, the overall weight of the rocker beam 1 of the embodiment is increased, and unnecessary hidden costs are generated in the stages of logistics transportation and production management. If the thickness is thin, the overall mechanical strength of the rocker beam 1 of the present embodiment is reduced, and the rocker beam 1 is easily deformed and the parts mounted on the rocker beam 1 are easily detached during processing and use.

The installation position of the existing threshold beam 12-1 assembly on the body-in-white 6 is shown in fig. 7, and the applicant researches and discovers that the threshold assembly is a key path structural part of the lower body, and the effective lap joint of the threshold assembly with the seat cross beam 6-2 and the upper body B-pillar 6-1 can obviously improve the overall strength, rigidity and structural durability of the body-in-white 6. The existing threshold beam assembly 12 installed on the existing vehicle model lacks joint parts, so that the connection strength of the existing threshold beam 12-1 and other parts such as the seat cross beam 6-2 is insufficient.

Based on the same inventive concept, the present embodiment provides a rocker assembly as described above in connection with the rocker beam 1 of the various embodiments. The threshold assembly has the corresponding technical effects of the threshold beam 1 of the above-mentioned embodiment, and will not be described herein.

As shown in fig. 8, 9 and 11, the threshold assembly provided in this embodiment includes: an upper joint 2, a cross joint 3, a sliding door lower drive mounting plate assembly 4, and a threshold beam 1 as in any of the embodiments described above; the upper joint 2 is fixedly connected to the joint of the first mounting surface 1-1-3 and the second mounting surface 1-1-4 and is suitable for being connected with an upper body B column 6-1; the transverse joint 3 is fixedly connected to the side wall of the threshold beam main body 1-1 and is suitable for being connected with a seat transverse beam 6-2; the sliding door lower driving mounting plate assembly 4 is fixedly connected to the second mounting surface 1-1-4.

Alternatively, the lower sliding door drive mounting plate assembly 4 is fixedly connected to the second beam section 1-1-2 of the rocker beam 1 of the present embodiment by spin tapping riveting, as shown in fig. 15. The under-slide door drive mounting plate assembly 4 is used to mount the under-slide door drive mechanism 7, as shown in fig. 16.

Alternatively, as shown in fig. 12, the rocker beam body 1-1 may also be fixedly connected to the floor panel 9.

Alternatively, as shown in fig. 12, the rocker body 1-1 can also be fixedly connected to the side sill 8 via a cross joint 3.

The rotary tapping and riveting (FDS) process is a cold forming process for tapping and riveting a plate after the plate is thermally deformed by a rivet rotating at a high speed. The connecting process has the advantages that two structural members made of different materials can be connected, and the rivet after being installed has high loosening torque, so that the two structural members are connected and fastened reliably. Meanwhile, the process has the characteristics of good dynamic bearing capacity, capability of repeatedly screwing formed threads and the like.

As shown in fig. 12, in some embodiments, the upper joint 2, the cross joint 3, and the rocker beam 1 form a plurality of closed cavities with the body-in-white 6, respectively, in a radial cross section of the rocker beam 1. The cross-sectional force of the connecting structure formed by the threshold assembly and the body-in-white 6 is improved.

As shown in fig. 12, in some embodiments, the plurality of enclosed cavities are disposed adjacent and contiguous. The stability and continuity of a force transmission path are ensured when the force is applied, and the connection strength and rigidity of the threshold assembly and other parts of the body-in-white 6 are effectively enhanced.

As shown in fig. 10, in some embodiments, the axis of the rocker beam 1 (dashed line a in fig. 10), the axis of the upper joint 2 (dashed line b in fig. 10), and the axis of the cross joint 3 (dashed line c in fig. 10) are perpendicular to each other two by two.

The upper joint 2, the transverse joint 3 and the threshold beam 1 effectively form a three-way joint structure which is mutually vertical in geometric space and completely consistent with three directions of a coordinate system of the vehicle body, so that the structural mechanical properties of the threshold assembly on X-direction front column collision, Y-direction side collision, Z-direction jacking and bearing are better, and the performance indexes of the white vehicle body 6 such as collision safety, bending rigidity, torsional rigidity, structural durability, strength and the like are greatly improved.

In some embodiments, the rocker assembly further includes a welded bridge plate 5 fixedly attached to the first mounting surface 1-1-3 along the length of the rocker beam body 1-1, as shown in fig. 8, 9 and 11.

Alternatively, the welded bridge plate 5 is fixedly connected to the rocker beam 1 of the present embodiment by spin tapping riveting.

As shown in fig. 13 and 14, optionally, the welded bridge plate 5 is made of steel, and is fixedly connected to the aluminum rocker beam 1 through FDS, and the welding surface included in the welded bridge plate 5 can be connected to other steel parts of the upper body (such as the quarter outer panel 11 and the quarter reinforcing panel 10) through spot welding (as an exemplary illustration, the position of the welding spot 13 is shown in fig. 14). In other words, the welded bridging plate 5 is provided in the rocker 1 assembly of the present embodiment in order to achieve a reliable mechanical connection with the steel parts of the upper car body.

Based on the same inventive concept and in combination with the description of the rocker assembly of the above embodiment, the present embodiment provides a vehicle having the technical effects corresponding to the rocker assembly of the above embodiment, which are not described herein again.

A vehicle comprises the doorsill assembly of the above embodiment.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

Claims (16)

1. A threshold beam, comprising: integrated into one piece just is equipped with the threshold roof beam main part of inner chamber, threshold roof beam main part is provided with the first installation face that is applicable to and connects upper automobile body B post to and be applicable to the second installation face of installation sliding door lower drive mounting panel assembly.

2. The rocker beam defined in claim 1, wherein said second mounting surface is lower than said first mounting surface and is adapted to mate with a body-in-white structure.

3. The rocker beam defined in claim 1, wherein the rocker beam body includes first and second beam sections along its length, the first beam section having a parting plate dividing its inner cavity into upper and lower cavities, the parting plate extending along the length of the first beam section and being integrally connected to the second mounting surface.

4. The rocker beam defined in claim 3, wherein upper sets of vertically and horizontally staggered spacers are provided in the upper cavity of the first beam section, the upper sets of spacers extending along the length of the first beam section; the upper partition plate group is fixedly connected with the inner wall of the upper cavity, so that the upper cavity is divided into a plurality of upper sub-cavities.

5. The rocker beam defined in claim 4, wherein the thickness of the wall of the rocker beam body, the thickness of the parting plate, and the thickness of each plate in the upper set of divider plates are each 2 to 6mm.

6. The rocker beam of claim 3, wherein lower sets of vertically and horizontally staggered spacers are disposed in the lower cavity of the first beam section, the lower sets of spacers extending along the length of the first beam section; the lower partition plate group is fixedly connected with the inner wall of the lower cavity, so that the lower cavity is divided into a plurality of lower sub-cavities.

7. The rocker beam of claim 6, wherein the lower set of divider plates extends into an interior cavity of the second beam segment such that the interior cavity of the second beam segment is divided into a plurality of second lower subchambers.

8. The rocker beam defined in claim 6, wherein each plate in the lower set of divider plates has a plate thickness of 2 to 6mm.

9. The rocker beam defined in claim 1, wherein said first mounting surface includes a first angled surface and a second angled surface.

10. The rocker beam defined in claim 9, wherein the rocker beam body includes first and second beam sections along a length direction;

an upper partition plate group which is staggered horizontally and vertically is arranged in the upper cavity of the first beam section and extends along the length direction of the first beam section; the upper partition plate group is fixedly connected with the inner wall of the upper cavity, so that the upper cavity is divided into a plurality of upper sub-cavities;

the cross section of the upper sub-cavity adjacent to the first inclined surface and the second inclined surface is trapezoidal.

11. A threshold assembly, comprising: an upper joint, a cross joint, a sliding door lower drive mounting plate assembly, and a rocker beam according to any of claims 1-10;

the upper joint is fixedly connected to the joint of the first mounting surface and the second mounting surface and is suitable for being connected with an upper vehicle body B column;

the transverse joint is fixedly connected to the side wall of the threshold beam main body and is suitable for being connected with a seat transverse beam;

and the sliding door lower driving mounting plate assembly is fixedly connected to the second mounting surface.

12. The rocker assembly of claim 11, wherein the upper joint, the cross joint, and the rocker beam each form a plurality of enclosed chambers with the body-in-white in the rocker beam radial cross section.

13. The rocker assembly of claim 12, wherein the plurality of enclosed cavities are adjacent and contiguous.

14. A rocker assembly as set forth in claim 11, wherein the axis of the rocker beam, the axis of the upper joint, and the axis of the transverse joint are perpendicular to one another.

15. The rocker assembly of claim 11, further comprising a welded bridge plate fixedly attached to the first mounting surface along the length of the rocker beam body.

16. A vehicle comprising a rocker assembly as claimed in any one of claims 11 to 15.

Images