Front cabin assembly and vehicle

By designing a hollow cavity structure with a ring-shaped profile in the front compartment assembly, combined with the first and second crossbeams, the problem of insufficient torsional stiffness of the body-in-white was solved, achieving higher torsional resistance and body stability.

CN223821806UActive Publication Date: 2026-01-23XIAOMI EV TECH CO LTD
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Patent Information

Application Number
CN202520280415.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-01-23
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

In the existing technology, the arrangement of structural beams cannot meet the requirements of high torsional stiffness of the body-in-white, resulting in insufficient torsional resistance.

Method used

Design a front cabin assembly that forms a hollow cavity by connecting a first crossbeam and a second crossbeam, and connects the two together by a structural beam to form a stable structure with a ring profile, thereby improving connection stability and torsional resistance.

Benefits of technology

It effectively improves the torsional stiffness of the body-in-white, enhances torsional resistance by more than 10%, reduces vibration and noise, and strengthens the body's resistance to deformation.

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Abstract

The forecabin assembly comprises a first cross beam and a second cross beam which are connected with each other, the first cross beam and the second cross beam extend in the vehicle width direction and define a hollow cavity extending in the vehicle width direction, and in the tangent plane perpendicular to the vehicle width direction, the hollow cavity is provided with an annular contour; the structural beam is provided with a first connecting end, and the first connecting end is connected to the first cross beam or the second cross beam. The first cross beam and the second cross beam are organically combined, specifically, the first cross beam and the second cross beam are connected and enclosed to form a hollow cavity. According to the design, when the structural beam is connected to the first cross beam or the second cross beam through the first connecting end, the first cross beam and the second cross beam are combined into an organic whole and form an annular structure (a hollow cavity with an annular outline) with higher stability, so that compared with the traditional mode that the structural beam is directly connected to a single front wall cross beam, the structural beam has the advantages that the structure is more stable; the forecabin assembly is higher in torsion resistance, and the torsional rigidity of the body in white can be effectively improved.
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Description

Technical Field

[0001] This disclosure relates to the field of vehicle front compartment technology, and more particularly to a front compartment assembly and a vehicle. Background Technology

[0002] To improve the torsional stiffness of the vehicle body-in-white, related technologies typically incorporate a structural beam between the front damper tower and the front bulkhead crossbeam. This beam distributes the collision forces from the front damper tower to the front bulkhead crossbeam, acting as a critical force transmission path and effectively enhancing the torsional stiffness of the body-in-white. However, with increasingly stringent requirements for the torsional stiffness of the body-in-white, this simple arrangement of structural beams is no longer sufficient. Utility Model Content

[0003] To overcome the problems existing in the related technologies, this disclosure provides a front compartment assembly and a vehicle.

[0004] According to a first aspect of the present disclosure, a front cabin assembly is provided, comprising:

[0005] A first crossbeam and a second crossbeam are interconnected, extending along the vehicle width direction and enclosing a hollow cavity extending along the vehicle width direction. In a cross-section perpendicular to the vehicle width direction, the hollow cavity has an annular profile.

[0006] The structural beam has a first connecting end, which is connected to either the first crossbeam or the second crossbeam.

[0007] Optionally, the first crossbeam includes a horizontal plate and a vertical plate that are at an angle to each other, and the second crossbeam includes an inclined plate that is connected to the horizontal plate and the vertical plate respectively. The horizontal plate, the vertical plate and the inclined plate together enclose the hollow cavity, and the first connecting end is attached to the vertical plate.

[0008] Optionally, the inclined plate includes a main body and a first flange and a second flange disposed at both ends of the main body, wherein the first flange is connected to the horizontal plate and the second flange is connected to the vertical plate.

[0009] The main body, together with the horizontal plate and the vertical plate, forms the hollow cavity.

[0010] Optionally, the first connection end includes a connection plate attached to the first crossbeam, and the front cabin assembly further includes a fastening assembly for connecting the connection plate and the first crossbeam.

[0011] Optionally, the fastening assembly includes a plurality of bolts and a plurality of nuts.

[0012] The plurality of bolts pass sequentially through the connecting plate and the first crossbeam and extend into the hollow cavity, and the plurality of nuts are screwed onto the corresponding end of the bolt that extends into the hollow cavity.

[0013] Optionally, it also includes a reinforcing member attached to the first crossbeam and located within the hollow cavity, the fastening assembly passing sequentially through the connecting plate, the first crossbeam and the reinforcing member.

[0014] Optionally, the fastening assembly includes a plurality of bolts and a plurality of nuts.

[0015] The plurality of bolts pass sequentially through the connecting plate, the first crossbeam, and the reinforcing member, and the plurality of nuts are respectively fixed to the reinforcing member.

[0016] Optionally, the number of the reinforcing members is multiple and arranged along the vehicle width direction, and the fastening assembly includes multiple sets that are spaced apart along the vehicle width direction and respectively connected to the corresponding reinforcing members.

[0017] Optionally, the structure beam may also include two shock absorber towers spaced apart along the vehicle width direction, the structural beam having two second connection ends, the two second connection ends being respectively connected to the corresponding shock absorber towers.

[0018] Optionally, the first crossbeam is the front bulkhead crossbeam, and the second crossbeam is the front windshield crossbeam.

[0019] According to a second aspect of the present disclosure, a vehicle is provided, including the aforementioned front compartment assembly.

[0020] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: The first and second crossbeams are organically combined, specifically connected and enclosed to form a hollow cavity. In a cross-section perpendicular to the vehicle width direction, the hollow cavity has an annular profile. With this design, when the structural beam is connected to the first or second crossbeam via the first connecting end, because the first and second crossbeams are combined into an organic whole and form a more stable annular structure (a hollow cavity with an annular profile), compared to the traditional method of directly connecting the structural beam to a single front crossbeam, the front compartment assembly of this disclosure has stronger torsional resistance and can effectively improve the torsional stiffness of the body-in-white, specifically by more than 10%.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0023] Figure 1 This is a partial schematic diagram illustrating the connection position of the structural beam and the first crossbeam of a front compartment assembly according to the present disclosure.

[0024] Figure 2 yes Figure 1 An exploded view of the forward compartment assembly shown in the image;

[0025] Figure 3 yes Figure 1 The image shows a partial side sectional view of the front compartment assembly at a bolt location.

[0026] Explanation of reference numerals in the attached figures

[0027] 11-First crossbeam; 111-Horizontal plate; 112-Vertical plate; 12-Second crossbeam; 121-Inclined plate; 1211-First flange; 1212-Second flange; 1213-Main body; 13-Hollow cavity; 2-Structural beam; 201-Beam segment; 2011-Vertical plate; 2012-Reinforcing plate; 21-First connecting end; 211-Connecting plate; 22-Second connecting end; 31-Bolt; 32-Nut; 4-Reinforcing member. Detailed Implementation

[0028] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0029] Reference Figures 1-3 This disclosure exemplarily illustrates a front compartment assembly, including a first crossbeam 11 and a second crossbeam 12 interconnected with each other, and a structural beam 2 having a first connecting end 21 connected to either the first crossbeam 11 or the second crossbeam 12. The first crossbeam 11 and the second crossbeam 12 extend along the vehicle width direction and enclose a hollow cavity 13 extending along the vehicle width direction. In a cross-section perpendicular to the vehicle width direction, the hollow cavity has an annular profile. Here, the "annular profile" can be triangular, rectangular, circular, etc., and this disclosure is not limited thereto. The first connecting end 21 of the structural beam 2 can refer to the end of the structural beam 2 closest to the first crossbeam 11 and the second crossbeam 12 when it is installed in the vehicle's front compartment, such as the front end. It can have a connecting structure (e.g., a connecting hole) for connecting to the first crossbeam 11 or the second crossbeam 12. Here, in embodiments of this disclosure, the structural beam 2 can be, for example, a triangular beam.

[0030] In the embodiments of this disclosure, the first crossbeam 11 and the second crossbeam 12 can be welded together or connected by fasteners, and this disclosure does not limit this. The first crossbeam 11 and the second crossbeam 12 can be I-beams, U-beams, solid beams, etc., as long as the two can be connected to form a hollow cavity 13 extending along the width direction of the vehicle.

[0031] It should be noted that structural beam 2 is usually located in the front compartment of the vehicle and can be constructed in a triangular or other contour shape. It is used to connect the front compartment crossbeam and the longitudinal beams and shock absorber towers on both sides of the vehicle body to form a stable force transmission structure, thereby increasing the rigidity of the vehicle body, optimizing the transmission and dispersion of force, and improving the vehicle body's resistance to deformation. Especially when it is a triangular beam, its structure is more stable. Since the structure and principle of structural beam 2 are well known to those skilled in the art, they will not be described in detail here.

[0032] By using the above technical solution, the first crossbeam 11 and the second crossbeam 12 are organically combined, specifically connected and enclosed to form a hollow cavity 13. In a cross-section perpendicular to the vehicle width direction, the hollow cavity 13 has an annular profile. With this design, when the structural beam 2 is connected to the first crossbeam 11 or the second crossbeam 12 through the first connecting end 21, since the first crossbeam 11 and the second crossbeam 12 are combined into an organic whole and form a more stable annular structure (the hollow cavity 13 with an annular profile), compared with the traditional method of directly connecting the structural beam 2 to a single front crossbeam, the front compartment assembly of this disclosure has stronger torsional resistance and can effectively improve the torsional stiffness of the body-in-white, with an improvement index exceeding 10%.

[0033] As stated above, this disclosure does not impose limitations on the structure of the first crossbeam 11 and the second crossbeam 12, for example, in Figures 1-3 In the illustrated embodiment, the first crossbeam 11 may include a horizontal plate 111 and a vertical plate 112 at an angle to each other. Specifically, the included angle between the horizontal plate 111 and the vertical plate 112 may be 90 degrees, 70 degrees, 120 degrees, etc. The second crossbeam 12 may include an inclined plate 121 connected to the horizontal plate 111 and the vertical plate 112 respectively. The inclined plate 121 may be welded to the horizontal plate 111 and the vertical plate 112 respectively, or it may be connected to them respectively by fasteners. The horizontal plate 111, the vertical plate 112, and the inclined plate 121 may together enclose a hollow cavity 13. The first connecting end 21 may be fitted to the vertical plate 112. This "fitted connection" can effectively improve the stability of the connection and reduce the vibration noise of the front compartment assembly. It should be noted that in the embodiments of this disclosure, the horizontal plate 111, the vertical plate 112, and the inclined plate 121 are not limited to flat plates, and may be any other type of plate. Figure 2 and Figure 3The folded or curved panel shown can be any panel that is close to the surface of a board. In addition to the above embodiments, in some other embodiments, the first beam 11 and the second beam 12 can also be I-beams, which are connected to form the hollow cavity 13.

[0034] Furthermore, referring to Figure 3 In the embodiments disclosed herein, the inclined plate 121 may include a main body 1213 and a first flange 1211 and a second flange 1212 disposed at both ends of the main body 1213. The main body 1213, the first flange 1211, and the second flange 1212 may be integrally formed and form an angle with each other. The first flange 1211 may be connected to the horizontal plate 111, and the second flange 1212 may be connected to the vertical plate 112. The first flange 1211 may be parallel to the horizontal plate 111, and the second flange 1212 may be parallel to the vertical plate 112; the two may be directly welded together. Alternatively, when the front compartment assembly also includes a reinforcing member 4 (mentioned below), the reinforcing member 4 may be placed between the two, and the three may be connected to each other by welding. The main body 1213, the horizontal plate 111, and the vertical plate 112 may together enclose a hollow cavity 13. Providing two flanges makes it easier to connect the inclined plate 121 to the horizontal plate 111 and the vertical plate 112.

[0035] Reference Figures 1-3 In embodiments of this disclosure, the first connecting end 21 may include a connecting plate 211 attached to the first crossbeam 11, and the front compartment assembly may also include a fastening assembly for connecting the connecting plate 211 and the first crossbeam 11. This design, by attaching the connecting plate 211 to the first crossbeam 11, increases the connection area, improving connection stability and thus enhancing the torsional stiffness of the body-in-white. This disclosure does not limit the fastening assembly; it may include bolts and nuts as mentioned below, or it may include rivets, pins, etc. Alternatively, in some other embodiments, the first crossbeam 11 and the connecting plate 211 may be connected by welding, and this disclosure does not limit this.

[0036] Reference Figures 1-3 In the embodiments of this disclosure, the fastening assembly may include a plurality of bolts 31 and a plurality of nuts 32. The plurality of bolts 31 may pass sequentially through the connecting plate 211 and the first crossbeam 11 and extend into the hollow cavity 13, respectively. The plurality of nuts 32 may be screwed onto the respective end of the bolt 31 that extends into the hollow cavity 13. By providing a plurality of bolts 31 and nuts 32, the connection strength between the connecting plate 211 and the first crossbeam 11 can be ensured, and the bolts 31 and nuts 32 enable a detachable connection between the first crossbeam 11 and the connecting plate 211, which is beneficial for later maintenance and component replacement.

[0037] Reference Figure 2 andFigure 3 In embodiments of this disclosure, the front compartment assembly may further include a reinforcing member 4 attached to the first crossbeam 11 and located within the hollow cavity 13. Fastening components may sequentially pass through the connecting plate 211, the first crossbeam 11, and the reinforcing member 4. The reinforcing member 4 may be welded to the first crossbeam 11. By providing the reinforcing member 4, the connection strength between the first crossbeam 11 and the connecting plate 211 can be improved, thereby increasing the torsional stiffness of the body-in-white. In other embodiments, the reinforcing member 4 may also be integrally formed with the first crossbeam 11; this disclosure does not limit this.

[0038] This disclosure does not impose any limitations on the structure of the reinforcing member 4, for example in Figure 2 and Figure 3 In the illustrated embodiment, it can be constructed as an L-shaped structure matching the shape of the first crossbeam 11 and welded to the first crossbeam 11. Furthermore, in some other embodiments, the reinforcing member 4 can also be constructed as a flat metal plate attached to the vertical plate 112.

[0039] Reference Figure 2 When the front compartment assembly includes the reinforcing member 4, the fastening assembly may include multiple bolts 31 and multiple nuts 32. The bolts 31 can sequentially pass through the connecting plate 211, the first crossbeam 11, and the reinforcing member 4, while the nuts 32 can be fixed to the reinforcing member 4, for example, by welding. This design allows the bolts 31 to sequentially pass through the connecting plate 211 and the first crossbeam 11 and directly insert into the corresponding nuts 32 on the reinforcing member 4 to complete the connection when connecting the first crossbeam 11 and the structural beam 2. This reduces installation difficulty and avoids the situation where the space inside the hollow cavity 13 is too small to allow for nut 32 installation. Furthermore, in some other embodiments, the fastening assembly may also include multiple rivets, etc.

[0040] In the embodiments of this disclosure, the number of reinforcing members 4 can be multiple and arranged along the vehicle width direction. The fastening assembly can include multiple groups that are spaced apart along the vehicle width direction and respectively connected to the corresponding reinforcing members 4. Specifically, the number of reinforcing members 4 can be two, three, etc. This design allows the force on the structural beam 2 to be evenly distributed among multiple reinforcing members 4, avoiding the concentration of force on one reinforcing member 4, which could damage it and affect its service life. In addition, this form of dividing the fastening assembly into multiple groups along the vehicle width direction and arranging them at intervals can distribute the force along the vehicle width direction to each group of the fastening assembly, thereby effectively improving the torsional stiffness of the body-in-white. Here, it should be explained that when the fastening assembly includes multiple bolts 31, the aforementioned multiple groups can refer to dividing the multiple bolts 31 into multiple groups, with each group including at least one bolt 31.

[0041] Reference Figure 1 and Figure 2In embodiments of this disclosure, the structural beam 2 may include multiple interconnected beam segments 201, each beam segment 201 may include two parallel vertical plates 2011 and multiple reinforcing plates 2012 connected between the two vertical plates 2011. This design, which combines vertical plates 2011 and reinforcing plates 2012 to form a grid beam, can ensure the structural beam 2's strength while also providing the advantage of lightweight design.

[0042] In embodiments of this disclosure, the front compartment assembly may further include two shock absorber towers (not shown) spaced apart along the vehicle width direction. The structural beam 2 may have two second connecting ends 22, which may be respectively connected to the corresponding shock absorber towers. In this case, the two second connecting ends 22 may refer to the two side ends of the structural beam 2 along the vehicle width direction. This design allows the vehicle's forces to be transferred from the two shock absorber towers to the first crossbeam 11 and the second crossbeam 12 through the structural beam 2, dispersing the forces and reducing their damage to the vehicle. Furthermore, in some other embodiments, the two second connecting ends 22 of the structural beam 2 may also be connected to the longitudinal beams on both sides of the vehicle.

[0043] This disclosure does not limit the first crossbeam 11 and the second crossbeam 12. For example, in an embodiment of this disclosure, the first crossbeam 11 can be a front bulkhead crossbeam, and the second crossbeam 12 can be a front windshield crossbeam. In this case, according to simulation measurements, the torsional stiffness of the body-in-white can be increased by 13.3%.

[0044] According to a second aspect of this disclosure, a vehicle is provided that includes the aforementioned front compartment assembly, the advantages of which will not be elaborated here.

[0045] In the above detailed description, reference has been made to the accompanying drawings, which illustrate specific aspects of this disclosure by way of illustration. In this regard, terms indicating direction or positional relationship, such as “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential,” are used with reference to the orientation of the described figures. Since components of the described device can be positioned in multiple different orientations, directional terms are used for illustrative purposes and not for limitation. It should be understood that other aspects can be utilized and structural or logical changes can be made without departing from the concept of this disclosure. Therefore, the following detailed description should not be considered limiting.

[0046] It should be understood that, unless otherwise specifically indicated, features of various embodiments of this disclosure described herein can be combined with each other. As used herein, the term “and / or” includes any one of the relevant listed items and any combination of any two or more; similarly, “at least one of…” includes any one of the relevant listed items and any combination of any two or more.

[0047] It should be understood that, unless otherwise expressly specified and limited, the terms "joining," "attaching," "installing," "connecting," "linking," "fixing," etc., used in the embodiments of this disclosure should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms herein based on the specific circumstances.

[0048] Furthermore, the term "above" as used herein with respect to components, elements, or material layers formed or located "above" a surface may be used 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" as used with respect to components, elements, or material layers formed or located "above" a surface may also optionally have a specific meaning: that the component, element, or material layer is "directly" positioned (e.g., placed, formed, deposited, etc.) on the surface, for example, in direct contact with the surface.

[0049] Although terms such as “first,” “second,” and “third” may 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. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Therefore, without departing from the teachings of the examples described herein, the first component, part, region, layer, or section mentioned in the examples may also be referred to as the second component, part, region, layer, or section. Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include at least one of that feature. In the description herein, “a plurality” means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] It should be understood that spatial relative terms, such as “above,” “upper,” “below,” and “lower,” are used herein to describe the relationship between one element and another shown in the figures. In addition to the orientation depicted in the figures, these spatial relative terms are also intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as “above” or “upper” relative to another element would be “below” or “lower” relative to that other element. Thus, depending on the spatial orientation of the device, the term “above” encompasses both above and below orientations. Devices may have other orientations (e.g., rotated 90 degrees or in other orientations), and the spatial relative terms used herein should be interpreted accordingly.

[0051] Furthermore, the term “exemplary” is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as “exemplary” is not necessarily to be construed as advantageous compared to other aspects or designs. Rather, the use of the term “exemplary” is intended to present the concept in a concrete manner. As used herein, the term “or” is intended to mean 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 mean any of the natural inclusive arrangements. That is, “X applies A or B” satisfies any of the foregoing instances if X applies A; X applies B; or both X applies A and B. Additionally, unless otherwise specified or clear from the context to refer to the singular form, the articles “a” and “an” as used in this application and the appended claims are generally understood to mean “one or more.”

[0052] Similarly, although this 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 upon reading and understanding this specification and the accompanying drawings. This 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 described above (e.g., elements, resources, etc.), unless otherwise indicated, the terminology used to describe such components is intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if structurally not equivalent to the disclosed structure. Furthermore, although specific features of this 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 advantageous to any given or particular application. Moreover, with regard to the terms “comprising,” “owning,” “having,” “having,” or variations thereof as used in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term “including.”

[0053] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

[0054] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A front cabin assembly, characterized in that, include: A first crossbeam and a second crossbeam are connected to each other. The first crossbeam and the second crossbeam extend along the vehicle width direction and enclose a hollow cavity extending along the vehicle width direction. In a cross-section perpendicular to the vehicle width direction, the hollow cavity has an annular profile. as well as The structural beam has a first connecting end, which is connected to either the first crossbeam or the second crossbeam.

2. The front cabin assembly according to claim 1, characterized in that, The first crossbeam includes a horizontal plate and a vertical plate that are at an angle to each other, and the second crossbeam includes an inclined plate that is connected to the horizontal plate and the vertical plate respectively. The horizontal plate, the vertical plate and the inclined plate together enclose the hollow cavity, and the first connecting end is attached to the vertical plate.

3. The front cabin assembly according to claim 2, characterized in that, The inclined plate includes a main body and a first flange and a second flange located at both ends of the main body. The first flange is connected to the horizontal plate, and the second flange is connected to the vertical plate. The main body, together with the horizontal plate and the vertical plate, forms the hollow cavity.

4. The front compartment assembly according to claim 1, characterized in that, The first connection end includes a connection plate attached to the first crossbeam, and the front cabin assembly also includes a fastening assembly for connecting the connection plate and the first crossbeam.

5. The front compartment assembly according to claim 4, characterized in that, The fastening assembly includes multiple bolts and multiple nuts. The plurality of bolts pass sequentially through the connecting plate and the first crossbeam and extend into the hollow cavity, and the plurality of nuts are screwed onto the corresponding ends of the bolts that extend into the hollow cavity.

6. The front cabin assembly according to claim 4, characterized in that, It also includes a reinforcing member attached to the first crossbeam and located in the hollow cavity, and the fastening assembly passes through the connecting plate, the first crossbeam and the reinforcing member in sequence.

7. The front cabin assembly according to claim 6, characterized in that, The fastening assembly includes multiple bolts and multiple nuts. The plurality of bolts pass sequentially through the connecting plate, the first crossbeam, and the reinforcing member, and the plurality of nuts are respectively fixed to the reinforcing member.

8. The front cabin assembly according to claim 6, characterized in that, The number of the reinforcing members is multiple and arranged along the vehicle width direction, and the fastening assembly includes multiple sets that are spaced apart along the vehicle width direction and respectively connected to the corresponding reinforcing members.

9. The front compartment assembly according to claim 1, characterized in that, It also includes two shock absorber towers spaced apart along the vehicle width direction, and the structural beam has two second connection ends, which are respectively connected to the corresponding shock absorber towers.

10. The front compartment assembly according to any one of claims 1-9, characterized in that, The first crossbeam is the front fascia crossbeam, and the second crossbeam is the front windshield crossbeam.

11. A vehicle, characterized in that, The front cabin assembly includes any one of claims 1-10.