CN106809286B - Automobile front floor structure - Google Patents

Automobile front floor structure Download PDF

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Publication number
CN106809286B
CN106809286B CN201510854161.1A CN201510854161A CN106809286B CN 106809286 B CN106809286 B CN 106809286B CN 201510854161 A CN201510854161 A CN 201510854161A CN 106809286 B CN106809286 B CN 106809286B
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China
Prior art keywords
longitudinal
floor
plate
reinforcing
threshold
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CN106809286A (en
Inventor
谢锋
潘汉钦
邓宙
罗培锋
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Guangzhou Automobile Group Co Ltd
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Guangzhou Automobile Group Co Ltd
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Abstract

A front floor structure of an automobile comprises a front floor frame and a front floor body, wherein the front floor frame comprises a left longitudinal beam, a right longitudinal beam, a rear cross beam, a front cross beam, a left doorsill inner plate and a right doorsill inner plate which are fixed on the lower surface of the front floor body, and the rear cross beam and the front cross beam are respectively connected with the left longitudinal beam, the right longitudinal beam, the left doorsill inner plate, the right doorsill inner plate and the two small longitudinal beams in a cross mode to form a beam frame structure with four longitudinal sides, two transverse sides and two small longitudinal sides. Above-mentioned floor structure before car, the transmission path of power is more reasonable, and mode, crashworthiness, mounting point rigidity intensity are higher.

Description

Automobile front floor structure
Technical Field
The invention relates to the field of automobiles, in particular to an automobile front floor structure.
Background
MPV Vehicles (Multi-Purpose Vehicles) are Vehicles that integrate the functions of a station wagon, a large passenger space, the comfort of a passenger car and a van. With the improvement of living standard of people, the demand of MPV automobiles is further increased. To meet space and riding comfort requirements, the front floor structure of an MPV vehicle is generally different from a passenger car, and the front floor structure is generally designed to have a center tunnel-free structure. Because a central channel is cancelled, the bending rigidity, the mode, the collision performance and the like of the vehicle body are influenced to a certain extent. When a vehicle collides, the vehicle is easily deformed, and it is difficult to ensure the safety of the passenger. In addition, the rigidity of the mounting points of some critical electrical devices is also affected to some extent.
Therefore, when designing the front floor structure, various performance requirements such as collision, NVH, and mounting point stiffness need to be considered.
Disclosure of Invention
In view of the above, it is necessary to provide a front floor structure of an automobile with a reasonable force transmission path, a good local mode and a light weight, so as to improve bending stiffness, mode and collision performance of an MPV automobile.
The invention provides an automobile front floor structure which comprises a front floor frame and a front floor body, wherein the front floor frame comprises a left longitudinal beam, a right longitudinal beam, a rear cross beam, a front cross beam, a left threshold inner plate, a right threshold inner plate and two small longitudinal beams which are parallel and spaced, the left longitudinal beam, the right longitudinal beam, the left threshold inner plate, the right threshold inner plate and the two small longitudinal beams are fixed on the lower surface of the front floor body, the left longitudinal beam, the right longitudinal beam, the left threshold inner plate and the right threshold inner plate are respectively and symmetrically arranged on the outer sides of the left longitudinal beam and the right longitudinal beam along the longitudinal direction of the front floor body, the rear cross beam and the front cross beam are respectively and transversely spaced along the front floor body, the two small longitudinal beams are arranged on the front side of the front cross beam along the longitudinal direction of the front floor body and are arranged between the left, The right longitudinal beam, the left threshold inner plate, the right threshold inner plate and the two small longitudinal beams are mutually connected in a cross mode to form a beam frame structure with four longitudinal directions, two transverse directions and two small longitudinal directions.
Further, the front beam is of a four-section structure, one section is arranged between the left side threshold inner plate and the left side longitudinal beam, the left end and the right end of the front beam are respectively in lap joint with the left side threshold inner plate and the left side longitudinal beam, one section is arranged between the right side threshold inner plate and the right side longitudinal beam, the left end and the right end of the front beam are respectively in lap joint with the right side threshold inner plate and the right side longitudinal beam, and the left side longitudinal beam is provided with two sections of lap joint between the right side longitudinal beam and the front beam and the two sections of the front beam are respectively in lap joint with the left side longitudinal beam and the right side longitudinal beam.
Further, the rear cross beam is of a three-section structure, one section is arranged between the left side threshold inner plate and the left side longitudinal beam, the left end and the right end of the rear cross beam are respectively in lap joint with the left side threshold inner plate and the left side longitudinal beam, one section is arranged between the right side threshold inner plate and the right side longitudinal beam, the left end and the right end of the rear cross beam are respectively in lap joint with the right side longitudinal beam and the right side threshold inner plate, one section is arranged between the left side longitudinal beam and the right side longitudinal beam, and the left end and the right end of the rear cross beam are respectively in lap joint with the left side longitudinal beam and the.
Further, the front floor frame further comprises a left longitudinal beam reinforcing integration plate and a right longitudinal beam reinforcing integration plate which are arranged below the front floor body, the left longitudinal beam reinforcing integration plate is arranged between the left longitudinal beam and the front floor body, the extending direction of the left longitudinal beam reinforcing integration plate corresponds to the extending direction of the left longitudinal beam, and the right longitudinal beam reinforcing integration plate is arranged between the right longitudinal beam and the front floor body, the extending direction of the right longitudinal beam reinforcing integration plate corresponds to the extending direction of the right longitudinal beam.
Further, the left longitudinal beam reinforcing integrated plate comprises an integrated left longitudinal beam reinforcing plate and a left seat mounting point reinforcing plate protruding outwards from the left longitudinal beam reinforcing plate; the right longitudinal beam reinforcing integration plate comprises an integrated right longitudinal beam reinforcing plate and a right seat mounting point reinforcing plate protruding outwards from the right longitudinal beam reinforcing plate.
Furthermore, the front floor frame further comprises a left cover plate and a right cover plate which are fixed on the upper surface of the front floor body, the left cover plate is arranged above the front part of the front floor body and is overlapped with the left longitudinal beam reinforcing integrated plate part in the vertical direction, and the extending direction of the left cover plate corresponds to the extending direction of the left longitudinal beam; the right cover plate is arranged above the front portion of the front floor body and is overlapped with the right longitudinal beam reinforcing integrated plate in the vertical direction, and the extending direction of the right cover plate corresponds to the extending direction of the right longitudinal beam.
Furthermore, the front floor frame further comprises an instrument panel mounting bracket, the instrument panel mounting bracket is arranged between the left cover plate and the right cover plate and fixed on the upper surface of the front floor body, the front end of the instrument panel mounting bracket is fixed on the front dash plate in an overlapping manner, and an integrally closed frame structure is formed between the instrument panel mounting bracket and the front floor body as well as between the instrument panel mounting bracket and the front dash plate.
Further, the instrument panel mounting bracket comprises an instrument panel mounting point and an airbag ECU mounting point, and the instrument panel mounting point and the airbag ECU mounting point are integrally formed by punching.
Furthermore, be equipped with two main strengthening ribs on the preceding floor body, main strengthening rib includes first main strengthening rib and second main strengthening rib, first main strengthening rib with the second main strengthening rib set up respectively in the left side longeron with the both sides of right side longeron, first main strengthening rib with the second main strengthening rib is followed respectively the vertical setting of lining up of preceding floor body.
Furthermore, a plurality of auxiliary reinforcing ribs extend transversely from the first main reinforcing rib and the second main reinforcing rib along the front floor body.
The technical scheme of the embodiment of the invention has the following beneficial effects: foretell floor structure before car, because including preceding floor frame and preceding floor body for its transmission path of force is reasonable, and local mode is better and lightweight, promotes the bending and twisting rigidity and the crashworthiness of car, and the mounting point rigidity intensity is higher.
Drawings
FIG. 1 is a schematic structural view of a front floor structure of an automobile according to the present invention;
FIG. 2 is a schematic structural view of a portion of the components of the automotive front floor structure of the present invention;
FIG. 3 is a bottom view of FIG. 2;
FIG. 4 is a cross-sectional view taken at line IV-IV in FIG. 3;
FIG. 5 is an enlarged view of the instrument panel mounting bracket;
FIG. 6 is a cross-sectional view taken at VI-VI of FIG. 5; and
FIG. 7 is a cross-sectional view taken at VII-VII of FIG. 5.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Fig. 1 is a schematic structural view of a front floor structure of an automobile according to the present invention, fig. 2 is a schematic structural view of a part of the front floor structure of the automobile according to the present invention, and fig. 3 is a bottom view of fig. 2. Referring to fig. 1 to 3, a front floor structure 100 of an automobile according to the present invention includes a front floor frame 10 and a front floor body 20.
The front floor frame 10 is fixed to the front floor body 20, and the front floor frame 10 includes a left side member 101, a right side member 102, a rear cross member 103, a front cross member 104, a left side sill inner plate 105, a right side sill inner plate 106, a small side member 107, a left side sill reinforcement manifold 108, a right side sill reinforcement manifold 109, a left cover plate 110, a right cover plate 111, and an instrument panel mounting bracket 112. The left cover 110, the right cover 111, and the instrument panel mounting bracket 112 are provided above the front floor body 20, and the other components of the front floor frame 10 are provided below the front floor body 20.
The front floor frame 10 has a beam structure of four longitudinal beams, i.e., a left longitudinal beam 101, a right longitudinal beam 102, a left inner sill plate 105, and a right inner sill plate 106, two transverse beams, i.e., a rear cross beam 103 and a front cross beam 104, and two small longitudinal beams 107 spaced in parallel.
The left longitudinal beam 101 and the right longitudinal beam 102 are respectively arranged along the longitudinal symmetry interval of the front floor body 20 and fixedly connected to the front floor body 20, the left inner sill plate 105 is arranged on the outer side of the left longitudinal beam 101 along the longitudinal direction of the front floor body 20 and fixedly connected to the front floor body 20, the right inner sill plate 106 is arranged on the outer side of the right longitudinal beam 102 along the longitudinal direction of the front floor body 20 and fixedly connected to the front floor body 20, and the left inner sill plate 105 and the right inner sill plate 106 are symmetrically arranged. The rear cross beam 103 and the front cross beam 104 are respectively arranged along the transverse direction of the front floor body 20 at intervals and are fixedly connected to the front floor body 20, and the rear cross beam 103 and the front cross beam 104 are respectively arranged to intersect with the left longitudinal beam 101, the right longitudinal beam 102, the left rocker inner plate 105 and the right rocker inner plate 106. In the present embodiment, the fixed connection is welding, unless otherwise specified.
The rear cross beam 103 and the front cross beam 104 both adopt a sectional structure so as to facilitate welding operation. Specifically, the front cross beam 104 is of a four-section structure, a section of front cross beam 104 is arranged between the left threshold inner plate 105 and the left longitudinal beam 101, the left end and the right end of the front cross beam 104 are respectively connected to the left threshold inner plate 105 and the left longitudinal beam 101 in an overlapping manner, a section of front cross beam 104 is arranged between the right threshold inner plate 106 and the right longitudinal beam 102, the left end and the right end of the front cross beam 104 are respectively connected to the right longitudinal beam 102 and the right threshold inner plate 106 in an overlapping manner, two sections of front cross beams 104 are arranged between the right longitudinal beam 102 and the left longitudinal beam 101, and the two sections of front cross beams 104 are connected in an overlapping manner. The rear cross beam 103 is of a three-section structure, a section of rear cross beam 103 is arranged between the left threshold inner plate 105 and the left longitudinal beam 101, the left end and the right end of the rear cross beam 103 are respectively connected to the left threshold inner plate 105 and the left longitudinal beam 101 in an overlapping manner, a section of rear cross beam 103 is arranged between the right threshold inner plate 106 and the right longitudinal beam 102, the left end and the right end of the rear cross beam 103 are respectively connected to the right longitudinal beam 102 and the right threshold inner plate 106 in an overlapping manner, and a section of rear cross beam 103 is arranged between the left longitudinal beam 101 and the right longitudinal beam 102, and.
Two small longitudinal beams 107 which are spaced in parallel are arranged in the middle of the front section of the front floor body 20, specifically, the small longitudinal beams 107 are arranged on the front side of the front cross beam 104 along the longitudinal direction of the front floor body 20 and located between the left longitudinal beam 101 and the right longitudinal beam 102, and the two small longitudinal beams 107 are uniformly arranged between the left longitudinal beam 101 and the right longitudinal beam 102. The small longitudinal beam 107 is fixedly connected to the front floor body 20, and the rear end of the small longitudinal beam 107 is lap-jointed to the front cross member 104. The provision of the minor stringers 107 increases the force transmission path and improves local deformations and local modes of the floor.
The left longitudinal beam reinforcing integration plate 108 and the right longitudinal beam reinforcing integration plate 109 are arranged in bilateral symmetry. The left longitudinal beam reinforcing manifold 108 is arranged between the left longitudinal beam 101 and the front floor body 20, the left longitudinal beam reinforcing manifold 108 comprises a left longitudinal beam reinforcing plate 1081 and a left seat mounting point reinforcing plate 1082 protruding outwards from the left longitudinal beam reinforcing plate 1081, and the left longitudinal beam reinforcing plate 1081 and the left seat mounting point reinforcing plate 1082 are integrally processed, so that the number of parts can be reduced, the rigidity of mounting points is effectively improved, and the deformation of left seat outer side mounting points in the collision process is improved. The extending direction of the left side member reinforcing plate 1081 corresponds to the extending direction of the left side member 101. The front end of the left longitudinal beam reinforcing integration plate 108 (left longitudinal beam reinforcing plate 1081) starts from the front cross beam 104, the rear end of the left longitudinal beam reinforcing integration plate 108 (left longitudinal beam reinforcing plate 1081) ends at the rear cross beam 103, the front end of the left longitudinal beam reinforcing integration plate 108 is partially overlapped with the left cover plate 110 positioned above the front floor body 20 in the vertical direction, and the rear end of the left longitudinal beam reinforcing integration plate 108 is partially overlapped with the rear cross beam 103 and the left longitudinal beam 101.
The right longitudinal beam reinforcing integration plate 109 is arranged between the right longitudinal beam 102 and the front floor body 20, the right longitudinal beam reinforcing integration plate 109 comprises a right longitudinal beam reinforcing plate 1091 and a right seat mounting point reinforcing plate 1092 protruding outwards from the right longitudinal beam reinforcing plate 1091, the right longitudinal beam reinforcing plate 1091 and the right seat mounting point reinforcing plate 1092 are integrally processed, the number of parts can be reduced, the rigidity of mounting points is effectively improved, and deformation of right seat outer side mounting points in the collision process is improved. The extending direction of the right side member reinforcing plate 1091 corresponds to the extending direction of the right side member 102. The front end of the right longitudinal beam reinforcing manifold 109 (right longitudinal beam reinforcing plate 1091) starts from the front cross beam 104, the rear end of the right longitudinal beam reinforcing manifold 109 (right longitudinal beam reinforcing plate 1091) ends at the rear cross beam 103, the front end of the right longitudinal beam reinforcing manifold 109 is partially overlapped with the right cover plate 111 positioned above the front floor body 20 in the vertical direction, and the rear end of the right longitudinal beam reinforcing manifold 109 is partially overlapped with the rear cross beam 103 and the right longitudinal beam 102.
Referring to fig. 3, the left cover plate 110, the right cover plate 111, and the dashboard mounting bracket 112 are disposed above the front floor body 20.
The left cover plate 110 and the right cover plate 111 are arranged in bilateral symmetry. The left cover plate 110 is disposed above the front portion of the front floor body 20 and partially overlaps the left side member reinforcing plate 1081 of the left side member reinforcing manifold 108 in the vertical direction, and the extending direction of the left cover plate 110 corresponds to the extending direction of the left side member 101. The front end of the left cover plate 110 exceeds the front floor body 20, and the front end of the left cover plate 110 is fixedly connected with the front dash panel 30, so that the stability of the connection between the front floor body 20 and the front dash panel 30 is enhanced.
The right cover plate 111 is disposed above the front portion of the front floor body 20 and partially overlaps the right side member reinforcing plate 1091 of the right side member reinforcing manifold 109 in the vertical direction, and the extending direction of the right cover plate 111 corresponds to the extending direction of the right side member 102. The front end of the right cover plate 111 exceeds the front floor body 20, and the front end of the right cover plate 111 is fixedly connected with the front dash panel 30, so that the stability of the connection between the front floor body 20 and the front dash panel 30 is enhanced. Fig. 4 is a cross-sectional view taken at a position iv-iv in fig. 3, and referring to fig. 4, the left cover plate 110 (or the right cover plate 111) is provided to increase a cross-sectional area, improve deformation of the front floor body 20, and prevent cracks of the welding points.
The dashboard mounting bracket 112 is disposed between the left cover plate 110 and the right cover plate 111 and is fixedly connected to the upper surface of the front floor body 20, the front end of the dashboard mounting bracket 112 is fixed to the dash panel 30 in an overlapping manner, and an integrally closed frame structure is formed between the dashboard mounting bracket 112 and the front floor body 20 and the dash panel 30, so that the dashboard mounting bracket can bear larger external force and improve the dynamic stiffness of the mounting point. Referring to fig. 5, which is an enlarged view of the instrument panel mounting bracket, referring to fig. 5, instrument panel mounting bracket 112 is provided with bilaterally symmetrical instrument panel mounting points 1122, instrument panel mounting bracket 112 is further provided with airbag ECU mounting points 1124, and instrument panel mounting points 1122 and airbag ECU mounting points 1124 are integrally stamped and formed on instrument panel mounting bracket 112. Fig. 6 is a cross-sectional view taken at vi-vi of fig. 5, and referring to fig. 6, the instrument panel mounting bracket 112 is vertically overlapped with a portion of the front cross member 104 below the front floor body 20, and the front cross member 104 serves to reinforce the instrument panel mounting bracket 112 below the instrument panel mounting bracket 112. Fig. 7 is a cross-sectional view taken at vii-vii in fig. 5, and referring to fig. 7, two front panel support plates 113 are symmetrically disposed below the front panel body 20, the front panel support plates 113 are disposed at left and right sides of the instrument panel mounting bracket 112, the front panel support plates 113 are partially overlapped with the instrument panel mounting bracket 112 in the vertical direction, and the front panel support plates 113 serve to reinforce the instrument panel mounting bracket 112 below the instrument panel mounting bracket 112.
The front and rear of the front floor body 20 are fixedly connected to a cabin (not shown) and a rear floor (not shown), respectively. The front floor body 20 is a plate body formed by stamping and having a certain thickness.
The front floor body 20 is provided with a main reinforcing bead 22, an auxiliary reinforcing bead 24, and a partial reinforcing bead 26. The main reinforcing beads 22 are provided at the left and right sides of the front floor body 20 in two and symmetrical fashion. The main bead 22 includes a first main bead 222 and a second main bead 224, the first main bead 222 and the second main bead 224 are provided on the inner side and the outer side of the left side member 101 and the right side member 102, respectively, and the first main bead 222 and the second main bead 224 are provided to penetrate in the longitudinal direction (vehicle length direction) of the front floor body 20. To improve the rigidity of the seat mounting points and the local mode of the front floor body 20, the first main bead 222 and the second main bead 224 extend out of the plurality of auxiliary beads 24 in the lateral direction (vehicle width direction) of the front floor body 20. To improve the local mode of the front floor body 20, a plurality of local beads 26 may be further provided in a portion between the two main beads 22.
The technical scheme of the embodiment of the invention has the following beneficial effects: the automobile front floor structure 100 comprises the front floor frame 10 and the front floor body 20, so that the force transmission path is reasonable, the local mode is better and light, the bending rigidity and the collision performance of an automobile are improved, and the rigidity and the strength of a mounting point are higher.
In the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.
In the present invention, the terms of orientation of the front, rear, upper, lower, etc. are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only used for the sake of clarity and convenience in technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the above-described embodiments and embodiments of the invention may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. An automotive front floor structure (100) comprising a front floor frame (10) and a front floor body (20), characterized in that: the front floor frame (10) comprises a left longitudinal beam (101), a right longitudinal beam (102), a rear cross beam (103), a front cross beam (104), a left threshold inner plate (105), a right threshold inner plate (106) and two small longitudinal beams (107) which are parallel to each other and spaced from each other and fixed to the lower surface of the front floor body (20), the left longitudinal beam (101) and the right longitudinal beam (102) are respectively arranged along the longitudinal symmetry spacing of the front floor body (20), the left threshold inner plate (105) and the right threshold inner plate (106) are respectively arranged on the outer sides of the left longitudinal beam (101) and the right longitudinal beam (102) along the longitudinal symmetry spacing of the front floor body (20), the rear cross beam (103) and the front cross beam (104) are respectively arranged along the transverse spacing of the front floor body (20), and the two small longitudinal beams (107) are arranged on the front side of the front cross beam (104) along the longitudinal direction of the front floor body (20) and are located on the front side of the left longitudinal beam (101) and the right longitudinal 102) The rear cross beam (103) and the front cross beam (104) are respectively connected with the left longitudinal beam (101), the right longitudinal beam (102), the left threshold inner plate (105), the right threshold inner plate (106) and the two small longitudinal beams (107) in a cross mode to form a beam frame structure with four longitudinal directions, two transverse directions and two small longitudinal directions; the front floor frame (10) further comprises a left longitudinal beam reinforcing integration plate (108) and a right longitudinal beam reinforcing integration plate (109), the left longitudinal beam reinforcing integration plate (108) is arranged between the left longitudinal beam (101) and the front floor body (20) and the extending direction of the left longitudinal beam (101) corresponds to the extending direction of the front floor frame, the right longitudinal beam reinforcing integration plate (109) is arranged between the right longitudinal beam (102) and the front floor body (20) and the extending direction of the front floor frame corresponds to the extending direction of the right longitudinal beam (102).
2. The automotive front floor structure (100) of claim 1, characterized in that: the front cross beam (104) is of a four-section structure, one section is arranged between the left side threshold inner plate (105) and the left longitudinal beam (101), the left end and the right end of the front cross beam (104) are respectively in lap joint with the left side threshold inner plate (105) and the left longitudinal beam (101), one section is arranged between the right side threshold inner plate (106) and the right longitudinal beam (102), the left end and the right end of the front cross beam (104) are respectively in lap joint with the right side threshold inner plate (106) and the right longitudinal beam (102), two sections of lap joint are arranged between the left longitudinal beam (101) and the right longitudinal beam (102), and the end parts of the front cross beam (104) are respectively in lap joint with the left longitudinal beam (101) and the right longitudinal beam (102).
3. The automotive front floor structure (100) of claim 1, characterized in that: rear beam (103) is the syllogic structure, left side threshold inner panel (105) with be provided with one section between left side longeron (101) rear beam (103) and its left and right sides both ends overlap joint respectively in left side threshold inner panel (105) with on left longeron (101), right side threshold inner panel (106) with be provided with one section between right longeron (102) rear beam (103) and its left and right sides both ends overlap joint respectively in right longeron (102) with on right side threshold inner panel (106), left side longeron (101) with be provided with one section between right longeron (102) rear beam (103) and its left and right sides both ends overlap joint respectively in left side longeron (101) with on right longeron (102).
4. The automotive front floor structure (100) of claim 1, characterized in that: the left longitudinal beam reinforcing integration plate (108) comprises an integrated left longitudinal beam reinforcing plate (1081) and a left seat mounting point reinforcing plate (1082) protruding outwards from the left longitudinal beam reinforcing plate (1081); the right longitudinal beam reinforcing integration plate (109) comprises an integrated right longitudinal beam reinforcing plate (1091) and a right seat mounting point reinforcing plate (1092) protruding outwards from the right longitudinal beam reinforcing plate (1091).
5. The automotive front floor structure (100) according to claim 1 or 4, characterized in that: the front floor frame (10) further comprises a left cover plate (110) and a right cover plate (111) which are fixed on the upper surface of the front floor body (20), the left cover plate (110) is arranged above the front part of the front floor body (20) and partially overlapped with the left longitudinal beam reinforcing integration plate (108) in the vertical direction, and the extending direction of the left cover plate (110) corresponds to the extending direction of the left longitudinal beam (101); the right cover plate (111) is arranged above the front part of the front floor body (20) and partially overlapped with the right longitudinal beam reinforcing integration plate (109) in the vertical direction, and the extending direction of the right cover plate (111) corresponds to the extending direction of the right longitudinal beam (102).
6. The automotive front floor structure (100) of claim 5, characterized in that: the front floor frame (10) further comprises an instrument panel mounting bracket (112), the instrument panel mounting bracket (112) is arranged between the left cover plate (110) and the right cover plate (111) and fixed on the upper surface of the front floor body (20), the front end of the instrument panel mounting bracket (112) is in lap joint with the front dash panel (30), and an integrally closed frame structure is formed between the instrument panel mounting bracket (112) and the front floor body (20) as well as between the instrument panel mounting bracket (112) and the front dash panel (30).
7. The automotive front floor structure (100) of claim 6, characterized in that: the instrument panel mounting bracket (112) comprises an instrument panel mounting point (1122) and an airbag ECU mounting point (1124), and the instrument panel mounting point (1122) and the airbag ECU mounting point (1124) are integrally formed by stamping.
8. The automotive front floor structure (100) of claim 1, characterized in that: two main reinforcing ribs (22) are arranged on the front floor body (20), each main reinforcing rib (22) comprises a first main reinforcing rib (222) and a second main reinforcing rib (224), the first main reinforcing rib (222) and the second main reinforcing rib (224) are respectively arranged on two sides of the left longitudinal beam (101) and the right longitudinal beam (102), and the first main reinforcing rib (222) and the second main reinforcing rib (224) are respectively arranged along the longitudinal through direction of the front floor body (20).
9. The automotive front floor structure (100) of claim 8, characterized in that: the first main reinforcing rib (222) and the second main reinforcing rib (224) extend transversely along the front floor body (20) to form a plurality of auxiliary reinforcing ribs (24).
CN201510854161.1A 2015-11-28 2015-11-28 Automobile front floor structure Active CN106809286B (en)

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CN109204505B (en) 2017-06-30 2021-12-07 比亚迪股份有限公司 Vehicle body structure and vehicle
CN109204568B (en) * 2017-06-30 2021-11-12 比亚迪股份有限公司 Vehicle body structure and vehicle
CN109204493B (en) * 2017-06-30 2021-12-07 比亚迪股份有限公司 Vehicle body structure and vehicle
CN109204470B (en) * 2017-06-30 2020-07-10 比亚迪股份有限公司 Vehicle body structure and vehicle
CN109204564B (en) * 2017-06-30 2021-11-12 比亚迪股份有限公司 Vehicle body structure and vehicle
CN108248700A (en) * 2017-12-18 2018-07-06 合肥亿恒智能科技股份有限公司 A kind of automobile front floor assembly

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DE19621949C2 (en) * 1996-05-31 2000-09-28 Daimler Chrysler Ag Floor structure for a passenger car
JP2002154459A (en) * 2000-11-21 2002-05-28 Suzuki Motor Corp Lower body structure of automobile
JP4403970B2 (en) * 2005-01-12 2010-01-27 三菱自動車工業株式会社 Body structure
CN101823509B (en) * 2010-04-14 2011-12-14 奇瑞汽车股份有限公司 Automobile front floor framework
CN205186312U (en) * 2015-11-28 2016-04-27 广州汽车集团股份有限公司 Front floor structure of automobile

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