B column reinforcing structure and body in white

Abstract

The utility model relates to a B column reinforcing structure and a body in white. The B-pillar reinforcing structure comprises a B-pillar inner plate, a B-pillar outer plate (22) and a ceiling longitudinal beam (3), the B-pillar inner plate and the B-pillar outer plate define a containing cavity, the B-pillar reinforcing structure further comprises a reinforcing piece (1), the reinforcing piece comprises a side face reinforcing part (11) and a top face reinforcing part (12), the side face reinforcing part is contained in the containing cavity and extends in the length direction of a B pillar, and the top face reinforcing part (12) is contained in the containing cavity and extends in the length direction of the B pillar. The top face reinforcing part is contained in the cavity of the ceiling longitudinal beam and extends in the length direction of the ceiling longitudinal beam. According to the technical scheme, side collision and top compression resistance can be considered at the same time, and the safety of passengers in the vehicle under the working conditions of vehicle collision or rolling and the like can be protected.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle manufacturing, and in particular to a B-pillar reinforcement structure and a body-in-white. Background Art

[0002] With the continuous development of automobile technology and the improvement of living standards, consumers have higher and higher requirements for automobile safety. The side impact and top compressive strength of the car are important indicators to ensure the safety of the passengers in the car. As one of the main supporting parts of the roof, the bending and impact resistance of the B-pillar have an important impact on the side impact and top pressure performance of the car. In related technologies, the side impact performance of the B-pillar is improved by increasing the strength of the B-pillar cavity cross-section direction, but less attention is paid to the top pressure resistance of the B-pillar. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a B-pillar reinforcement structure and a body-in-white.

[0004] According to a first aspect of an embodiment of the present disclosure, a B-pillar reinforcement structure is provided, comprising a B-pillar inner panel, a B-pillar outer panel and a ceiling longitudinal beam, wherein the B-pillar inner panel and the B-pillar outer panel enclose and form a accommodating cavity, and the B-pillar reinforcement structure also comprises a reinforcement member, wherein the reinforcement member comprises a side reinforcement portion and a top surface reinforcement portion, wherein the side reinforcement portion is accommodated in the accommodating cavity and extends along the length direction of the B-pillar, and the top surface reinforcement portion is accommodated in the cavity of the ceiling longitudinal beam and extends along the length direction of the ceiling longitudinal beam.

[0005] Optionally, the side reinforcement portion and the top reinforcement portion are constructed as an integral piece.

[0006] Optionally, two opposite side surfaces of the reinforcement are respectively connected to the B-pillar inner panel and the B-pillar outer panel via adhesive members.

[0007] Optionally, the length of the side reinforcement structure is configured to cover at least from a middle area of ​​the B-pillar to a top area of ​​the B-pillar.

[0008] Optionally, the side reinforcement portion is constructed to have a cross-section in the shape of a "J" along the width direction, including a top wall and side walls arranged on both sides of the top wall, and the side walls are bent outward to form flanges, wherein the top wall is used to connect to the B-pillar outer panel, and the flange is used to connect to the B-pillar inner panel.

[0009] Optionally, the top wall is provided with a plurality of weight-reducing holes, and the plurality of weight-reducing holes are arranged at intervals along the length direction of the side reinforcement portion. The side reinforcement portion also includes a first reinforcing rib arranged inside a groove surrounded by the top wall and the side wall, and a plurality of the first reinforcing ribs are arranged at intervals along the length direction of the side reinforcement portion, and at least part of the plurality of the first reinforcing ribs are arranged between two adjacent weight-reducing holes.

[0010] Optionally, a plurality of second reinforcing ribs are arranged at intervals on the outer wall surface of the side wall along the length direction of the side reinforcing portion, and the second reinforcing ribs extend to the flange along the width direction of the side reinforcing portion.

[0011] Optionally, a mounting portion for being accommodated in a cavity of a ceiling longitudinal beam is provided on the top of the B-pillar outer panel, the mounting portion extends along the length direction of the ceiling longitudinal beam, and the top surface reinforcement portion is configured to be connected to the mounting portion in a shape-fitting manner.

[0012] Optionally, the top surface reinforcement portion is configured as a cavity, and a plurality of third reinforcement ribs are arranged in the cavity of the top surface reinforcement portion at intervals along the length direction of the top surface reinforcement portion.

[0013] According to a second aspect of an embodiment of the present disclosure, a body-in-white is provided, comprising any one of the above-mentioned B-pillar reinforcement structures.

[0014] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the B-pillar reinforcement structure provided by the present disclosure is provided with a reinforcement member, and the reinforcement member is configured to include a side reinforcement portion accommodated in the B-pillar cavity and a top surface reinforcement portion accommodated in the ceiling longitudinal beam cavity, wherein the side reinforcement portion is used to improve the side impact performance of the B-pillar reinforcement structure, and the top surface reinforcement portion is used to improve the top compression resistance of the B-pillar reinforcement structure, that is, the B-pillar reinforcement structure provided by the present disclosure can take into account both side impact and top compression resistance, which is beneficial to protecting the safety of occupants in the vehicle under conditions such as vehicle collision or rollover.

[0015] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0017] Figure 1 The figure is a schematic diagram of a structural decomposition of a B-pillar reinforcement structure according to an exemplary embodiment.

[0018] Figure 2 yes Figure 1Schematic diagram of the middle B-pillar reinforcement structure after assembly.

[0019] Figure 3 is a schematic diagram of a reinforcement member according to an exemplary embodiment.

[0020] Figure 4 yes Figure 3 Schematic diagram of the middle reinforcement from another perspective.

[0021] Description of Reference Numerals

[0022] 1-reinforcement, 11-side reinforcement, 111-top wall, 112-side wall, 113-flange, 114-weight reduction hole, 115-first reinforcement rib, 1151-top wall reinforcement, 1152-side wall reinforcement, 116-second reinforcement rib, 117-third reinforcement rib, 12-top surface reinforcement, 2-B-pillar, 21-B-pillar inner panel, 22-B-pillar outer panel, 221-installation portion, 3-ceiling longitudinal beam, 31-ceiling longitudinal beam inner panel, 32-ceiling longitudinal beam outer panel, 4-adhesive. DETAILED DESCRIPTION

[0023] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0024] The embodiments described in some embodiments of the present disclosure below do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0025] like Figures 1 to 4 As shown, an exemplary embodiment of the present disclosure provides a B-pillar reinforcement structure. Specifically, the B-pillar reinforcement structure includes a B-pillar inner plate 21, a B-pillar outer plate and a roof longitudinal beam 3. The B-pillar inner plate 21 and the B-pillar outer plate 22 enclose and form a receiving cavity, and the B-pillar reinforcement structure also includes a reinforcement member 1, and the reinforcement member 1 includes a side reinforcement portion 11 and a top surface reinforcement portion 12, wherein the side reinforcement portion 11 is received in the receiving cavity and extends along the length direction of the B-pillar 2, and the top surface reinforcement portion 12 is received in the cavity of the roof longitudinal beam 3 and extends along the length direction of the roof longitudinal beam 3.

[0026] It should be noted that the "inside" and "outside" in the B-pillar inner panel 21 and the B-pillar outer panel 22 are described relative to the inside and outside of the vehicle, that is, in the assembled state, the side facing the inside of the vehicle is the inside, and the side facing the outside of the vehicle is the outside. In addition, the length direction is described according to the extension direction of the structural member itself. For example, in the assembled state, the length direction of the B-pillar 2 is the height direction of the vehicle, and the length direction of the roof longitudinal beam 3 is the front-rear direction of the vehicle.

[0027] In the B-pillar reinforcement structure provided by the present disclosure, the B-pillar 2 is enclosed by the B-pillar inner plate 21 and the B-pillar outer plate 22 to form a receiving cavity, which is conducive to reducing the weight of the B-pillar 2 itself and meeting the lightweight design requirements of the automobile. Taking into account both the lightweight design requirements and the safety performance of the automobile, the present disclosure also provides a reinforcement member 1 on this basis to reinforce the structure of the B-pillar. In addition, similar to the way that the B-pillar 2 is enclosed by the B-pillar inner plate 21 and the B-pillar outer plate 22, the roof longitudinal beam 3 of the present disclosure can also be enclosed by the roof longitudinal beam inner plate 31 and the roof longitudinal beam outer plate 32.

[0028] The reinforcement member 1 can be, for example, a sheet metal structural member, wherein the side reinforcement portion 11 is accommodated in a receiving cavity formed by the B-pillar inner panel 21 and the B-pillar outer panel 22, and is used to improve the side impact performance of the B-pillar reinforcement structure, and the top surface reinforcement portion 12 is accommodated in the roof longitudinal beam 3, and is used to improve the top compression resistance of the B-pillar reinforcement structure, so that the B-pillar reinforcement structure provided by the present disclosure can take into account both the side impact and top compression resistance, for example, in the case of a side impact or rollover of the vehicle, it can provide effective protection for the occupants of the vehicle. And because the B-pillar 2 is enclosed by the B-pillar inner panel 21 and the B-pillar outer panel 22, the B-pillar reinforcement structure provided by the present disclosure can also take into account sufficient structural strength and lightweight design at the same time.

[0029] In some embodiments, the side reinforcement part 11 and the top reinforcement part 12 are constructed as an integral part, that is, the reinforcement member 1 can be integrally formed by, for example, injection molding. In this way, on the one hand, it is helpful to improve the overall structural strength of the reinforcement member 1, and on the other hand, it is also helpful to improve the installation efficiency of the reinforcement member 1. This improvement in installation efficiency is relative to the split reinforcement member 1 that requires the side reinforcement part 11 and the top reinforcement part 12 to be installed separately.

[0030] As an implementation method of installing the reinforcement member 1, Figure 1As shown, two opposite sides of the reinforcement 1 are respectively connected to the B-pillar inner plate 21 and the B-pillar outer plate 22 through adhesives 4. The two sides are the inner side and the outer side. The adhesive 4 can be an adhesive. The adhesive can have a small effect on the weight of the B-pillar reinforcement structure while providing bonding performance, which is conducive to lightweight design and is also conducive to layout when there is less design space, without the need to reserve additional space for installing fasteners as required by fasteners such as threads. It should be understood that other feasible implementations, such as the reinforcement 1 can also be connected to the B-pillar inner plate 21 and the B-pillar outer plate 22 by welding or the like, which can also achieve the installation of the reinforcement 1.

[0031] The B-pillar reinforcement structure provided by the present disclosure takes into account both structural strength and lightweight design. Specifically, it is necessary to ensure the performance of the B-pillar against side impact and top pressure without making the weight of the B-pillar too large. In this regard, the length of the side reinforcement portion 11 in the embodiment of the present disclosure can be configured to at least cover the area from the middle area of ​​the B-pillar 2 to the top area of ​​the B-pillar 2. Considering that side impacts that have a greater impact on safety performance usually occur from the middle area of ​​the B-pillar 2 to the top area of ​​the B-pillar 2, the B-pillar reinforcement structure provided by the present disclosure can effectively protect the safety of the occupants, and the extension of the reinforcement 1 to the top area of ​​the B-pillar 2 is also beneficial to improving the top pressure resistance. At the same time, compared with the method in which the entire accommodating cavity of the B-pillar 2 is covered with the reinforcement 1, it is also beneficial to reduce the weight of the B-pillar reinforcement structure.

[0032] like Figure 3 and Figure 4 As shown, in some embodiments, the side reinforcement portion 11 is configured to have a "J"-shaped cross section along the width direction, including a top wall 111 and side walls 112 arranged on both sides of the top wall 111, and the side walls 112 are bent outward to form flanges 113, wherein the top wall 111 is used to connect with the B-pillar outer panel 22, and the flanges 113 are used to connect with the B-pillar inner panel 21. The "J"-shaped structure can provide more favorable bending and impact resistance to improve the strength of the B-pillar reinforcement structure. And wherein the top wall 111 and the flanges 113 can provide a larger contact surface, thereby improving the connection strength between the reinforcement member 1 and the B-pillar inner panel 21 and the B-pillar outer panel 22, which is also conducive to improving the strength of the B-pillar reinforcement structure.

[0033] The top wall 111 may be provided with a plurality of weight-reducing holes 114, and the plurality of weight-reducing holes 114 are arranged at intervals along the length direction of the side reinforcement portion 11, so that the weight of the reinforcement 1 can be reduced. At the same time, in order to avoid adverse effects on the structural strength of the reinforcement 1 itself due to the arrangement of the weight-reducing holes 114, the side reinforcement portion 11 also includes a first reinforcement rib 115 arranged inside the groove surrounded by the top wall 111 and the side wall 112. A plurality of first reinforcement ribs 115 are arranged at intervals along the length direction of the side reinforcement portion 11, and at least part of the plurality of first reinforcement ribs 115 are arranged between two adjacent weight-reducing holes 114.

[0034] The first reinforcing rib 115 is disposed inside the groove surrounded by the top wall 111 and the side wall 112, which can reduce the occupation of the design space in the B-pillar accommodating cavity. Optionally, the first reinforcing rib 115 is configured in a concave shape, including a top wall reinforcing portion 1151 for reinforcing the top wall 111 structure and a side wall reinforcing portion 1152 for reinforcing the side wall 112 structure.

[0035] In addition, a plurality of second reinforcing ribs 116 may be arranged at intervals on the outer wall surface of the side wall 112 along the length direction of the side reinforcing portion 11, and the second reinforcing ribs 116 extend to the flange 113 along the width direction of the side reinforcing portion 11. The second reinforcing ribs 116 may be configured as a triangular structure. By structurally reinforcing the side wall 112, it is beneficial to improve the bending and impact resistance of the reinforcement 1, and by structurally reinforcing the flange 113, it is beneficial to improve the connection strength between the reinforcement 1 and the B-pillar 2.

[0036] The top surface reinforcement portion 12 is described below as an example. Figure 1 and Figure 3 The top of the B-pillar outer panel 22 is provided with a mounting portion 221 for being accommodated in the cavity of the roof longitudinal beam 3, and the mounting portion 221 extends along the length direction of the roof longitudinal beam 3. Specifically, the mounting portion 221 is accommodated in the cavity enclosed by the roof longitudinal beam inner panel 31 and the roof longitudinal beam outer panel 32, and can play a role in installing and positioning the B-pillar outer panel 22.

[0037] The top surface reinforcement portion 12 is configured to be connected to the mounting portion 221 in a form-fitting manner. For example, a smooth transition is adopted between the side reinforcement portion 11 and the top surface reinforcement portion 12, and the top surface reinforcement portion 12 is bent toward the mounting portion 221. By configuring the top surface reinforcement portion 12 to be connected to the mounting portion 221 in a form-fitting manner, the top surface reinforcement portion 12 and the mounting portion 221 can have a sufficient fitting area, thereby improving the connection strength between the top surface reinforcement portion 12 and the mounting portion 221.

[0038] Among them, similar to the side reinforcement part 11, the top surface reinforcement part 12 can also be constructed as a cavity structure, so as to further reduce the weight of the reinforcement 1, and a plurality of third reinforcement ribs 117 are arranged at intervals along the length direction of the top surface reinforcement part 12 in the cavity of the top surface reinforcement part 12, so as to take into account both lightweight design and sufficient structural strength.

[0039] According to the second aspect of the embodiment of the present disclosure, a body in white is also provided, that is, a body that has been welded but not yet painted. The body in white includes the B-pillar reinforcement structure in any one of the above-mentioned embodiments and has all its beneficial effects, which will not be repeated here.

[0040] In the above detailed description, reference is made to the accompanying drawings, which illustrate specific aspects of the present disclosure that can be practiced by way of illustration. In this regard, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating directions or representing positional relationships, can be used with reference to the orientation of the described figures. Since the components of the described device can be positioned in a plurality of different orientations, directional terms can be used for illustrative purposes rather than restrictive. It should be understood that other aspects can be utilized and structural or logical changes can be made without departing from the concepts of the present disclosure. Therefore, the following detailed description should not be considered in a limiting sense.

[0041] It should be understood that, unless otherwise specifically noted, the features of some embodiments of the various present disclosures described herein may be combined with each other. As used herein, the term "and / or" includes any one of the related listed items and any combination of any two or more; similarly, "at least one of . . . " includes any one of the related listed items and any combination of any two or more.

[0042] It should be understood that, unless otherwise clearly specified and limited, the terms "joining", "attaching", "installing", "connecting", "connecting", "fixing" and the like used in the embodiments of the present disclosure should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For ordinary technicians in this field, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0043] In addition, the term "above" used in relation to a component, element or material layer formed "above" or located "above" a surface may be used herein to indicate that the component, element or material layer is "indirectly" positioned (e.g., placed, formed, deposited, etc.) on the surface such that one or more additional components, elements or layers are arranged between the surface and the component, element or material layer. However, the term "above" used in relation to a component, element or material layer formed "above" or located "above" a surface may also optionally have a specific meaning: the component, element or material layer is "directly" positioned (e.g., placed, formed, deposited, etc.) on the surface, such as in direct contact with the surface.

[0044] Although terms such as "first", "second" and "third" can be used herein to describe various components, parts, regions, layers or sections, these components, parts, regions, layers or sections are not limited to these terms. On the contrary, these terms are only used to distinguish one component, component, region, layer or section from another component, component, region, layer or section. Therefore, without departing from the teachings of each example, the first component, component, region, layer or section mentioned in the examples described herein may also be referred to as the second component, component, region, layer or section. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may expressly or implicitly include at least one of the features. In the description herein, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] It should be understood that spatially relative terms such as "above", "upper", "below", and "lower" are used herein to describe the relationship of one element to another element shown in the figures. In addition to the orientation depicted in the drawings, such spatially relative terms are also intended to include different orientations of the device in use or operation. For example, if the device in the drawings is turned over, the element described as being "above" or "upper" relative to another element will be "below" or "lower" relative to the other element. Therefore, depending on the spatial orientation of the device, the term "above" includes both upper and lower orientations. The device may have other orientations (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used herein should be interpreted accordingly.

[0046] In addition, the word "exemplary" is used herein to indicate serving as an example, instance, or diagram. Any aspect or design described as "exemplary" in this article is not necessarily understood to be advantageous compared to other aspects or designs. On the contrary, the use of the word exemplary is intended to present concepts in a specific way. As used herein, the term "or" is intended to represent an inclusive "or" rather than an exclusive "or". That is, unless otherwise specified or clear from the context, "X applies A or B" is intended to represent any one of the natural inclusive arrangements. That is, if X applies A; X applies B; or X applies both A and B, "X applies A or B" is satisfied under any of the aforementioned examples. In addition, unless otherwise specified or clearly pointed to a singular form from the context, the articles "one" and "an" as used in this application and the appended claims are generally understood to mean "one or more".

[0047] Likewise, although the present disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art after reading and understanding the specification and drawings. The present disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components (e.g., elements, resources, etc.) described above, unless otherwise indicated, the terms used to describe such components are intended to correspond to any component (functionally equivalent) that performs the specific functions of the described components, even if the structure is not equivalent to the disclosed structure. In addition, although specific features of the present disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations as may be desired and conducive to any given or specific application. In addition, with respect to "including", "having", "having", "having", or variations thereof used in a specific embodiment or claim, such terms are intended to be inclusive in a manner similar to the term "comprising".

[0048] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0049] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A B-pillar reinforcement structure, comprising a B-pillar inner plate, a B-pillar outer plate and a roof longitudinal beam, characterized in that: The B-pillar inner panel and the B-pillar outer panel are combined to form a accommodating cavity, and the B-pillar reinforcement structure also includes a reinforcement member, and the reinforcement member includes a side reinforcement portion and a top surface reinforcement portion, wherein the side reinforcement portion is accommodated in the accommodating cavity and extends along the length direction of the B-pillar, and the top surface reinforcement portion is accommodated in the cavity of the roof longitudinal beam and extends along the length direction of the roof longitudinal beam.

2. The B-pillar reinforcement structure according to claim 1, characterized in that: The side reinforcement portion and the top surface reinforcement portion are constructed as an integral piece.

3. The B-pillar reinforcement structure according to claim 1, characterized in that: Two opposite side surfaces of the reinforcement are respectively connected to the B-pillar inner panel and the B-pillar outer panel through adhesive members.

4. The B-pillar reinforcement structure according to claim 1, characterized in that: The length of the side reinforcement portion is configured to cover at least from a middle region of the B-pillar to a top region of the B-pillar.

5. The B-pillar reinforcement structure according to claim 1, characterized in that: The side reinforcement portion is constructed to have a cross-section in the shape of an "X" along the width direction, including a top wall and side walls arranged on both sides of the top wall, the side walls are bent outward to form flanges, wherein the top wall is used to connect to the B-pillar outer panel, and the flanges are used to connect to the B-pillar inner panel.

6. The B-pillar reinforcement structure according to claim 5, characterized in that: The top wall is provided with a plurality of weight-reducing holes, and the plurality of weight-reducing holes are arranged at intervals along the length direction of the side reinforcement portion. The side reinforcement portion also includes a first reinforcing rib arranged inside a groove surrounded by the top wall and the side wall. A plurality of the first reinforcing ribs are arranged at intervals along the length direction of the side reinforcement portion, and at least part of the plurality of the first reinforcing ribs are arranged between two adjacent weight-reducing holes.

7. The B-pillar reinforcement structure according to claim 6, characterized in that: A plurality of second reinforcing ribs are also arranged at intervals on the outer wall surface of the side wall along the length direction of the side reinforcing portion, and the second reinforcing ribs extend to the flange along the width direction of the side reinforcing portion.

8. The B-pillar reinforcement structure according to claim 1, characterized in that: The top of the B-pillar outer panel is provided with a mounting portion for being accommodated in the cavity of the ceiling longitudinal beam, the mounting portion extends along the length direction of the ceiling longitudinal beam, and the top surface reinforcement portion is configured to be connected to the mounting portion in a form-fitting manner.

9. The B-pillar reinforcement structure according to claim 8, characterized in that: The top surface reinforcement portion is configured as a cavity, and a plurality of third reinforcement ribs are arranged in the cavity of the top surface reinforcement portion at intervals along the length direction of the top surface reinforcement portion.

10. A body in white, characterized in that: The invention comprises the B-pillar reinforcement structure as described in any one of claims 1 to 9.

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