WO2018161696A1 - Cabin frame and vehicle having same - Google Patents

Abstract

A cabin frame and a vehicle having same. The cabin frame (200) comprises a left side roof rail (2011), a right side roof rail (2012), a front roof crossbeam (2013), a rear roof crossbeam (2014), a lower cabin frame (202), a dash panel (203), a floor panel (205), and a back panel (204). The left side roof rail (2011), the right side roof rail (2012), the front roof crossbeam (2013), and the rear roof crossbeam (2014) together form a roof frame assembly (201); the lower cabin frame (202) is fixed below the roof frame assembly (201); the dash panel (203) is fixed to the front of the lower cabin frame (202); the floor panel (205) is fixed at the bottom of the lower cabin frame (202); the back panel (204) is fixed to the back of the lower cabin frame (202). In this way, the structure of the cabin frame is modularized, the number of parts required during assembling of the cabin frame is reduced, and the assembling of the cabin frame is facilitated.

Description

Cockpit frame and vehicle with it

Cross-reference to related applications

This application claims the priority of the Chinese patent application No. "201720217872.2" submitted by Beijing New Energy Automobile Co., Ltd. on March 7, 2017, the utility model name is "cockpit frame and vehicle with it".

Technical field

The present invention relates to the field of vehicle manufacturing, and in particular to a cockpit frame and a vehicle having the cockpit frame.

Background technique

In the related art, the cockpit frame of the vehicle is welded by a plurality of stamped and formed sheet metal parts, and the cockpit frame needs to be manufactured with numerous parts, thereby increasing the assembly difficulty of the cockpit frame and extending the development of the cockpit frame. Cycles and the cost of manufacturing the cockpit frame is high. In addition, the weight of the cockpit frame under the technical solution is large, which is not conducive to the lightweight arrangement of the vehicle, and the sheet metal parts have poor corrosion resistance and are prone to rust.

Summary of the invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, a first aspect of the invention consists in proposing a cockpit frame that at least to some extent reduces the difficulty of assembly.

A second aspect of the invention resides in a vehicle having the above described cockpit frame.

A cockpit frame according to the first aspect of the present invention includes a left side roof side rail, a right side roof side rail, a top cover front cross member, a top cover rear cross member, a cockpit lower frame, a dash panel, a floor panel, and a rear wall a top cover front beam connected between the left side roof side rail and a front side of the right side roof side rail, the top cover rear beam connected to the left side roof side rail and the right side Forming a top cover frame assembly between the rear side rails of the side rails such that the left side roof side rails, the right side roof side rails, the top cover front cross members, and the top cover rear beams together a cockpit lower frame is secured below the roof frame assembly, the dash panel is secured to a front portion of the cockpit lower frame, and the floor panel is secured to a bottom of the cockpit lower frame, A rear panel is fixed to the rear of the lower frame of the cockpit.

According to the cockpit frame of the first aspect of the invention, the structure of the cockpit frame is modularized, the number of parts required for assembly of the cockpit frame is reduced, and the assembly of the cockpit frame is easier.

Furthermore, the above described cockpit frame according to the invention may also have the following additional technical features:

Preferably, the cockpit lower frame comprises two A-pillars arranged at right and left intervals, two B-pillars arranged at right and left, a lower left side sill of the cockpit, a right lower side sill of the cockpit and a plurality of cockpit connecting beams, the B a column is located behind the A-pillar, and the left lower side sill of the cockpit is respectively connected to a lower end of the A-pillar on the left side and a lower end of the B-pillar on the left side, and the right lower side beam of the cockpit is respectively opposite to the right side The lower end of the A-pillar is connected to the lower end of the B-pillar on the right side, and the plurality of cockpit connecting beams are connected between the left lower side sill of the cockpit and the right lower side sill of the cockpit.

Further, the cockpit connecting beam comprises a cockpit front cross beam, a cockpit rear cross beam and a cockpit middle cross beam, respectively, the front cockpit cross beam and the front left side sill of the cockpit and the right lower side sill of the cockpit a front end connection, the cockpit rear cross member being respectively connected to a rear end of the cockpit left side sill and a rear end of the cockpit right side sill, the cockpit middle cross member being located at the front cockpit of the cockpit Between the cockpit rear beams.

Further, the cockpit lower frame further includes a cockpit connecting stringer, the cockpit connecting stringer extending in a front-rear direction and connected between the cockpit front cross member and the cockpit intermediate beam, A cockpit connection stringer is located between the left lower side sill of the cockpit and the lower right side sill of the cockpit.

Further, the cockpit lower frame further includes: two reinforcing members, the two reinforcing members are respectively located at a joint of the cockpit rear cross member and the left lower side sill of the cockpit, and the cockpit rear cross member The connection to the right lower side sill of the cockpit.

Further, the floor panel includes a left front floor, a right front floor, and a rear floor, the left front floor is mounted at a left front portion of a bottom of the cockpit lower frame, and the right front floor is installed at a bottom of the cockpit lower frame On the right front portion, the rear floor is mounted at the rear of the bottom of the lower frame of the cockpit.

Further, the left front floor is installed in an area of the cockpit connecting stringer, the cockpit front cross member, the cockpit left lower side rail and the cockpit intermediate cross member, and the right front floor is installed at The cockpit connection stringer, the cockpit front cross member, the cockpit right lower side rail, and the cockpit intermediate cross member are constrained, the rear floor is mounted to the cockpit right lower side rail, the The cockpit rear cross member, the left underside of the cockpit, and the area of the cockpit intermediate beam are restricted.

Optionally, the cockpit frame is a lightweight alloy frame.

Further, the cockpit frame is an aluminum alloy frame.

A vehicle according to a second aspect of the invention is provided with a cockpit frame according to the first aspect of the invention.

According to the vehicle of the second aspect of the present invention, the assembly difficulty of the entire vehicle is reduced, and the assembly tempo of the vehicle is improved.

DRAWINGS

1 is a schematic structural view of a cockpit frame according to an embodiment of the present invention;

2 is a schematic structural view of a lower frame of a cockpit according to an embodiment of the present invention;

3 is a schematic structural view of a dash panel according to an embodiment of the present invention;

4 is a schematic structural view of a rear panel according to an embodiment of the present invention;

Figure 5 is a schematic structural view of a floor panel according to an embodiment of the present invention;

6 is a schematic structural view of a left side side edge beam according to an embodiment of the present invention;

7 is a schematic structural view of a front cover cross member according to an embodiment of the present invention;

Fig. 8 is a structural schematic view of a rear cover cross member according to an embodiment of the present invention.

Reference mark:

Cockpit frame 200, roof frame assembly 201, left side rails 2011, left side rail side body 20111, left rear beam 20112, A-pillar connection panel 20113, left connecting panel 20114, right side railings 2012 Top cover front beam 2013, top cover front beam body 20131, front beam connection plate 20132, top cover rear beam 2014, top cover rear beam body 20141, rear beam connection plate 20142, cockpit lower frame 202, A-pillar 2021, B Column 2022, cockpit lower left side rail 2023, cockpit right lower side rail 2024, cockpit front cross member 2025, cockpit middle cross member 2026, cockpit rear cross member 2027, cockpit connection stringer 2028, reinforcement member 2029, dash panel 203 The front panel body 2031, the front panel cross member 2032, the dash panel mounting bracket 2033, the rear panel 204, the rear panel body 2041, the rear panel upper panel 2042, the floor panel 205, the right front floor 2051, and the left front floor 2052, Rear floor 2053.

detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present invention and the simplified description, and does not indicate or imply that the device or component referred to has a specific orientation. The specific orientation and operation are not to be construed as limiting the invention.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, can also be electrically connected or can communicate with each other; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or only the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.

The invention is described below in conjunction with the specific embodiments in conjunction with the drawings.

A cockpit frame 200 of an embodiment of the present invention will first be described with reference to Figs.

As shown in FIGS. 1-8, the cockpit frame 200 of the embodiment of the present invention may include a left side roof side rail 2011, a right side roof side rail 2012, a top cover front beam 2013, a top cover rear beam 2014, and a cockpit lower frame. 202, a dash panel 203, a floor panel 205, and a back panel 204.

As shown in Fig. 1, the top cover front cross member 2013 can be connected between the left side top side beam 2011 and the right side top side beam 2012, and the top cover rear cross member 2014 can be connected to the left side top side beam 2011 and the right side. Between the rear portions of the side beams 2012, the left side rails 2011, the right side rails 2012, the roof front beams 2013 and the roof rear beams 2014 may collectively form the roof frame assembly 201, the roof of the vehicle The cover may be mounted in a frame surrounded by the left side rails 2011, the right side rails 2012, the top front rails 2013, and the top back beams 2014.

As shown in Figure 1, the cockpit lower frame 202 can be secured below the roof frame assembly 201, the dash panel 203 can be secured to the front of the cockpit lower frame 202, and the dash panel 203 can cover the cockpit lower frame At the front of the 202, the floor panel 205 can be secured to the bottom of the cockpit lower frame 202, the floor panel 205 can cover the bottom of the cockpit lower frame 202, and the back panel 204 can cover the rear of the cockpit lower frame 202.

Thus, the cockpit frame 200 may include a left side rail side beam 2011, a right side roof side rail 2012, a top cover front cross member 2013, a top cover rear cross member 2014, a cockpit lower frame 202, a dash panel 203, a floor panel 205, and The rear panel 204 has eight modules. Before assembling the cockpit frame 200, the profiles of different sections can be pre-formed by welding or riveting into the left side rails 2011, the right side rails 2012, the top front beams 2013, The top cover rear cross member 2014, the cockpit lower frame 202, the dash panel 203, the floor panel 205, and the rear panel 204.

When assembling the cockpit frame 200, the personnel can directly place the left side rail side beam 2011, the right side roof side rail 2012, the top cover front beam 2013, the top cover rear beam 2014, the cockpit lower frame 202, the dash panel 203, and the floor. The panel 205 and the back panel 204 are welded or riveted together to complete the assembly of the cockpit frame 200. Compared to the conventional cockpit frame, the number of parts required for assembly of the cockpit frame 200 is reduced, saving the assembly time of the cockpit frame 200, and the assembly of the cockpit frame 200 is easier.

According to the cockpit frame 200 of the embodiment of the present invention, the left side roof side rail 2011, the right side roof side rail 2012, the top cover front cross member 2013, the top cover rear cross member 2014, the cockpit lower frame 202, the dash panel 203, The floor panel 205 and the rear panel 204 modularize the cockpit structure, and only need to assemble the above eight structural modules when assembling the body cockpit frame 200, thereby reducing the number of parts required for the assembly process and assembly. The assembly time of the cockpit frame 200 is saved, the development cost of the cockpit frame 200 is reduced, and the assembly of the cockpit frame 200 is easier.

Preferably, as shown in FIG. 2, the cockpit lower frame 202 may include two A-pillars 2021 spaced apart from left and right, two B-pillars 2022 spaced apart from left and right, a cockpit lower left side rail 2023, a cockpit right lower side rail 2024, and a plurality of cockpit connecting beams, the cockpit lower frame 202 may be welded to each other by two A-pillars 2021, two B-pillars 2022, a cockpit lower left side rail 2023, a cockpit right side sill 2024, and a plurality of cockpit connecting beams Riveted.

As shown in FIG. 2, the left B-pillar 2022 may be located behind the left A-pillar 2021, and the right B-pillar 2022 may be located behind the right A-pillar 2021, and the cockpit lower left side rail 2023 may be respectively associated with the left side. The lower end of the A-pillar 2021 is connected to the lower end of the left B-pillar 2022, and the cockpit right lower side rail 2024 can be respectively connected to the lower end of the right A-pillar 2021 and the lower end of the right B-pillar 2022, and the plurality of cockpit connecting beams It can be connected between the cockpit lower left side rail 2023 and the cockpit right lower side rail 2024, so that the overall structure of the cockpit lower frame 202 is more secure.

In some specific embodiments, as shown in FIG. 2, the cockpit connecting beam may include a cockpit front cross member 2025, a cockpit rear cross member 2027, and a cockpit middle cross member 2026, and the cockpit front cross member 2025 may be respectively associated with the lower left side of the cockpit. The front end of the beam 2023 and the front end of the cockpit right side rail 2024 are connected, and the cockpit rear cross member 2027 can be coupled to the rear end of the cockpit lower left side rail 2023 and the rear end of the cockpit right side rail 2024, respectively. The cockpit front cross member 2025 and the cockpit rear cross member 2027 can be parallel to each other.

It can be understood that the front end of the cockpit lower frame 202 can be composed of two A-pillars 2021 and a cockpit front cross member 2025, and the rear end of the cockpit lower frame 202 can be composed of two B-pillars 2022 and a cockpit rear cross member 2027. The cockpit intermediate cross member 2026 can be located between the cockpit front cross member 2025 and the cockpit rear cross member 2027, and the cockpit intermediate cross member 2026 can provide a more robust overall structure of the cockpit lower frame 202.

In some more specific embodiments, as shown in FIG. 2, the cockpit lower frame 202 can also include a cockpit connection stringer 2028 that can extend in the fore-and-aft direction and that the cockpit connection stringer 2028 can It is connected between the cockpit front cross member 2025 and the cockpit intermediate cross member 2026.

As shown in FIG. 2, in the left-right direction, the cockpit connecting stringer 2028 can be located between the cockpit lower left side rail 2023 and the cockpit right lower side rail 2024 and preferably in an intermediate position, and the cockpit connecting stringer 2028 can be driven The cabin front cross member 2025 and the cockpit rear cross member 2027 are parallel to each other, whereby the cockpit connection stringer 2028 can further enhance the structural strength of the overall cockpit lower frame 202.

In some more specific embodiments, as shown in FIG. 2, the cockpit lower frame 202 can also include two stiffeners 2029, which can be located in the cockpit rear cross member 2027 and the cockpit lower left side rail 2023, respectively. At the junction and the junction of the cockpit rear cross member 2027 and the cockpit right lower side rail 2024, both stiffeners 2029 can be welded or riveted to the inside of the cockpit lower frame 202.

Thus, the reinforcement member 2029 on the left side can enhance the strength of the connection between the cockpit rear cross member 2027 and the cockpit lower left side rail 2023, and the reinforcement member 2029 on the right side can reinforce the cockpit rear cross member 2027 and the cockpit right lower side rail 2024. The strength of the connection, in turn, enhances the structural strength of the overall cockpit lower frame 202.

In some more specific embodiments, as shown in FIG. 5, the floor panel 205 can include a left front floor 2052, a right front floor 2051, and a rear floor 2053, and the left front floor 2052 can be mounted to the left front of the bottom of the cockpit lower frame 202, right front The floor 2051 can be mounted to the right front of the bottom of the cockpit lower frame 202, and the rear floor 2053 can be mounted to the rear of the bottom of the cockpit lower frame 202.

More specifically, as shown in FIGS. 1, 2, and 5, the left front floor 2052 can be mounted to the cockpit connecting stringer 2028, the cockpit front cross member 2025, the cockpit lower left side rail 2023, and the cockpit intermediate cross member 2026. Inside, the right front floor 2051 can be mounted in the area bounded by the cockpit connection stringer 2028, the cockpit front cross member 2025, the cockpit right lower side rail 2024, and the cockpit middle cross member 2026, and the rear floor 2053 can be mounted to the cockpit right lower side rail 2024. The cockpit rear cross member 2027, the cockpit lower left side rail 2023, and the cockpit intermediate cross member 2026 are constrained.

Thus, the floor panel 205 can avoid the cockpit connection stringer 2028 and the cockpit intermediate cross member 2026, allowing the floor panel 205 to be mounted to the bottom of the cockpit lower frame 202.

In some specific embodiments, as shown in FIG. 3, the dash panel 203 may include a dash panel body 2031. The upper end of the dash panel body 2031 may be provided with a front panel cross member 2032 and a front panel cross member 2032. The left and right ends can be respectively connected with the B pillars 2022 on the left and right sides to enhance the structural strength of the dash panel 203. The dash panel mounting bracket 2033 can also be provided on the dash panel body 2031, and the dash panel mounting bracket 2033 can be installed. The dashboard of the vehicle and the steering system.

In some specific embodiments, as shown in FIG. 4, the rear panel 204 may include a rear panel body 2041. The upper end of the rear panel body 2041 may be provided with a rearward extending upper panel 2042 extending rearward. The 2042 provides a mounting point for the rear windshield of the vehicle. In some other embodiments, the rear upper panel 2042 may also be provided with mounting brackets to mount components such as the seat back of the vehicle.

In some specific embodiments, as shown in FIG. 6, the left side roof side beam 2011 may include a downwardly curved left side roof side body 20111, and the left side of the left side beam body 20111 may be provided with a left rear side. The beam 20112, the left rear standing beam 20112 can support the left side roof side beam body 20111, the bottom of the left rear side beam 20112 can be connected with the upper end surface of the left side B column 2022, and the front end of the left side side beam body 20111 can be provided with A The column connecting plate 20113, the A-pillar connecting plate 20113 of the left side roof beam body 20111 may be connected to the top of the left A-pillar 2021, and the left side surrounding-side beam body 20111 may be provided to the right for connecting the top cover front beam 2013. Left connection plate 20114.

The structure of the left side rails 2011 and the right side rails 2012 may be axisymmetric along the longitudinal symmetry of the vehicle.

In other words, the right side top side beam 2012 may include a right side surrounding side beam body that is curved downward, the right rear side beam body may have a right rear side beam at the rear end, and the right rear side beam may support the right side top side beam body. The bottom of the right rear standing beam may be connected to the upper end surface of the right B-pillar 2022, and the front end of the right side rail beam body may be provided with an A-pillar connecting plate, and the A-pillar connecting plate of the right side surrounding side beam body may be connected to the right side. The tops of the A-pillars 2021 are connected, and the right side of the side rails can be provided with a right connecting plate for connecting the top front beams 2013 to the left.

In some specific embodiments, as shown in FIG. 7 , the top cover front beam 2013 may include a top cover front beam body 20131 extending left and right, and the left and right ends of the top cover front beam body 20131 may be respectively provided with a front beam connection plate 20132 The top cover front beam 2013 can be connected to the left side roof side rails 2011 and the right side roof side rails 2012 through the front beam connecting plates 20132, respectively. It can be understood that, in some specific embodiments, the front beam connecting plate 20132 of the left end of the top front beam body 20131 can be connected with the left connecting plate 20114, and the front beam connecting plate 20132 of the right end of the front cover front beam body 20131 can be Connect to the right connection plate.

In some specific embodiments, as shown in FIG. 8, the top cover rear cross member 2014 may include a top cover rear cross member body 20141 extending left and right, and the left and right portions of the top cover rear cross member body 20141 may be respectively extended rearward. The rear cross member connection plate 20142, the rear cross member connection plate 20142 can be installed with the rear windshield of the vehicle.

In some alternative embodiments, the cockpit frame 200 may each be a lightweight alloy frame, ie, the left side rails 2011, the right side rails 2012, the roof front beams 2013, the roof back beams 2014, the cockpit The lower frame 202, the dash panel 203, the floor panel 205, and the back panel 204 may each be a lightweight alloy member, thereby reducing the weight of the cockpit frame 200 while the vehicle maintains strong rigidity and crashworthiness, thereby reducing The weight of the whole vehicle.

In some specific embodiments, the cockpit frame 200 can be an aluminum alloy frame, ie, a left side roof rail 2011, a right side roof rail 2012, a roof front beam 2013, a roof rear beam 2014, a cockpit lower frame 202, The dash panel 203, the floor panel 205 and the rear panel 204 may each be an aluminum alloy member, so that the left side rails 2011, the right side rails 2012, the roof front beams 2013, the roof rear beams 2014, the cockpit The lower frame 202, the dash panel 203, the floor panel 205, and the back panel 204 may be extruded through aluminum alloy profiles of different cross sections, and then formed by welding or riveting. The cockpit frame 200 thus is inexpensive to manufacture, simple to mold, and has good corrosion resistance.

The vehicle of the embodiment of the present invention will be described below.

A vehicle according to an embodiment of the present invention is provided with a cockpit frame 200 according to any of the above embodiments of the present invention.

According to the vehicle of the embodiment of the present invention, by providing the cockpit frame 200, the assembly difficulty of the entire vehicle is reduced, and the assembly tempo of the vehicle is improved.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Further, various embodiments or examples described in this specification can be joined and combined by those skilled in the art.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Claims (10)

1. A cockpit frame, characterized in that the cockpit frame comprises:

   a left side side rail, a right side roof side rail, a top cover front beam, a top cover rear beam, and the top cover front beam is connected between the left side roof side rail and the right side top side rail The top cover rear beam is connected between the left side roof side rail and the right side roof side rail to make the left side roof side rail, the right side roof side rail, the top The front cover beam and the top cover rear beam together form a top cover frame assembly;

   a cockpit lower frame, the cockpit lower frame being fixed below the top cover frame assembly;

   a dash panel fixed to a front portion of the lower frame of the cockpit;

   a floor panel fixed to a bottom of the lower frame of the cockpit;

   a rear panel that is fixed to a rear portion of the lower frame of the cockpit.
2. The cockpit frame of claim 1 wherein said cockpit lower frame comprises:

   Two A-pillars spaced apart from each other;

   Two B pillars arranged at right and left intervals, the B pillars being located behind the A pillars;

   a left lower side sill of the cockpit, wherein the left lower side sill of the cockpit is connected to a lower end of the A-pillar on the left side and a lower end of the B-pillar on the left side, respectively;

   a right lower side sill of the cockpit, wherein the right lower side sill of the cockpit is respectively connected to a lower end of the A-pillar on the right side and a lower end of the B-pillar on the right side;

   A plurality of cockpit connecting beams, the plurality of cockpit connecting beams being coupled between the lower left side sill of the cockpit and the right lower side sill of the cockpit.
3. The cockpit frame of claim 2 wherein said cockpit connecting beam comprises:

   a cockpit front cross member, the front cockpit cross beam being respectively connected to a front end of the left underside of the cockpit and a front end of the right lower side sill of the cockpit;

   a cockpit rear cross member, the cockpit rear cross member being respectively connected to a rear end of the left lower side sill of the cockpit and a rear end of the right lower side sill of the cockpit;

   a cockpit intermediate beam, the cockpit intermediate beam being located between the cockpit front cross member and the cockpit rear cross member.
4. The cockpit frame of claim 3 wherein said cockpit lower frame further comprises:

   a cockpit connecting a longitudinal beam, the cockpit connecting stringer extending in a front-rear direction and being connected between the cockpit front cross member and the cockpit intermediate cross member, the cockpit connecting stringer being located at a lower left side of the cockpit Between the beam and the right lower side of the cockpit.
5. A cockpit frame according to claim 3, wherein said cockpit lower frame further comprises: two reinforcing members, said two reinforcing members being respectively located at said cockpit rear cross member and said lower left side of said cockpit a joint of the beam and a junction of the cockpit rear cross member and the right lower side sill of the cockpit.
6. The cockpit frame of claim 3 wherein said floor panel comprises:

   a left front floor, the left front floor being mounted at a left front portion of a bottom of the lower frame of the cockpit;

   a right front floor, the right front floor being mounted to the right front of the bottom of the lower frame of the cockpit;

   A rear floor, the rear floor being mounted at the rear of the bottom of the lower frame of the cockpit.
7. A cockpit frame according to claim 6 wherein said left front floor is mounted to said cockpit connecting stringer, said cockpit front cross member, said cockpit lower left side rail and said cockpit intermediate beam In the restricted area, the right front floor is installed in the cockpit connecting stringer, the cockpit front cross member, the cockpit right side sill and the cockpit intermediate beam restricted area, the rear floor installation In the area of the cockpit right lower side rail, the cockpit rear cross member, the cockpit left lower side rail, and the cockpit intermediate cross member.
8. The cockpit frame according to any one of claims 1 to 7, wherein the cockpit frame is a lightweight alloy frame.
9. The cockpit frame of claim 8 wherein said cockpit frame is an aluminum alloy frame.
10. A vehicle characterized by comprising a cockpit frame according to any one of claims 1-9.

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