CN214396975U - Universal middle-rear floor structure - Google Patents
Universal middle-rear floor structure Download PDFInfo
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- CN214396975U CN214396975U CN202022999734.9U CN202022999734U CN214396975U CN 214396975 U CN214396975 U CN 214396975U CN 202022999734 U CN202022999734 U CN 202022999734U CN 214396975 U CN214396975 U CN 214396975U
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- floor
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- cross beam
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The utility model relates to a well back floor structure of general formula comprises longeron and well underfloor reinforcing plate under outer boundary beam, interior boundary beam, well floor front beam, well floor back beam, back floor front beam, back floor middle beam, back floor back beam, tailboard, battery support, well floor. The utility model can be compatible with the fixing requirements of power batteries with different seat numbers and sizes, realizes the unification of the body structure, and reduces the cost and the process difficulty of the bicycle; the seats with different configurations are fixed on the same part, and the universality of the vehicle body is ensured; the rigidity and the strength of the fixed point of the seat are improved, and the structural universality and the performance are improved; the 2 groups of beam frame structures, the front lower beam of the middle floor and the rear lower beam of the middle floor form a beam structure whole in a shape like a Chinese character jing, so that the rigidity and the strength of the region are greatly improved, and the rear fixing supports of 4 batteries are set at the position, so that the requirement of the fixing strength of the batteries with large and small sizes in the region can be met simultaneously.
Description
Technical Field
The utility model relates to a floor structure, concretely relates to well back floor structure of general formula.
Background
In recent years, with the increasing environmental pollution problem, electric vehicles have gradually entered the automobile market. The expansion of automobile consumer groups leads users to change the demand of electric vehicle endurance mileage. Although the high endurance mileage is still the focus of user attention, the low endurance means low cost, and the small-sized power battery with low endurance is more and more widely applied to the electric vehicle while satisfying the user's travel instead of walk. These power batteries of different sizes place higher demands on the flexibility of the vehicle body structure. On the other hand, as the automobile consumer population increases, the demand of the user for the seat configuration also changes. The traditional five-seat vehicle can not meet the requirements of users, and passenger vehicles with four seats, six seats and seven seats gradually enter the consumer market. Different seat configurations also require higher compatibility of the vehicle body structure. For power batteries with different sizes and different numbers of seat configurations, the vehicle body generally adopts different structures, most other structures are kept universal, and two or more structures are adopted at local positions of the power batteries, seat fixing points and the like to adapt to different arrangement requirements. The vehicle body in the form can realize maximum arrangement compatibility through minimum modification, and meets the fixing requirements of seats with different configurations and power batteries with different endurance.
The size of the power battery is different for different endurance under the same vehicle type. To ensure compatibility of the vehicle body structure, the widths of the power batteries with different sizes are generally constant, and only the lengths are different. Thus, it can be ensured that only the fixing point of the battery tail part needs to be differentiated on the vehicle body structure, and other fixing points can be universal. For this situation, the structure of the vehicle body structure at the fixing point of the battery tail is different, or although the vehicle body structure is completely universal, at the fixing point of the large-size battery tail, a general-assembly transition metal bracket needs to be added to connect the batteries with different sizes to the vehicle body. For differently configured seats, the fixing point on the vehicle body is usually different. Such as a four seat/six seat configuration, may have more functions, such as arm rests, leg rests, etc., than a five seat/seven seat configuration. This makes the seat frame structures of different configurations different, and therefore the fixing points on the vehicle body cannot be unified. In view of this situation, the structure of the vehicle body structure at the fixing point positions of the seats in different configurations is usually different, or although the vehicle body structure is completely universal, the total assembly transition metal bracket needs to be added to meet the fixing requirements of the seats in different configurations.
Although the conventional vehicle body structure scheme can meet the fixing requirement of various battery and seat configurations at minimum cost, the increase of the vehicle body number or the increase of general assembly parts still causes the increase of the cost of a single vehicle, and simultaneously, the process difficulty and the identification difficulty of a factory are also improved.
The prior art discloses a rear floor structure of an electric passenger car, which comprises a rear floor framework, wherein a front rear floor and a rear floor are welded on the rear floor framework, the rear floor framework comprises a rear floor left longitudinal beam and a rear floor right longitudinal beam, rear floor left longitudinal beam and rear floor right longitudinal beam supports are provided with a rear floor front cross beam, a rear floor middle cross beam and a rear floor rear cross beam, and battery pack fixing points are arranged on the rear floor left longitudinal beam and the rear floor right longitudinal beam. The floor structure realizes the fixation of the power battery through the arrangement of the beam frame structure in the rear floor area. But no fixing solution for batteries of different sizes is achieved. Meanwhile, the fixing points of the power battery are only located on the left side longitudinal beam and the right side longitudinal beam, and the fixing points are not arranged at the rear part of the battery.
The prior art also discloses a middle and rear floor assembly structure, wherein the middle and rear floor assembly comprises five parts, namely a middle floor front beam, a middle floor, a rear floor left side supplementing plate and a rear floor right side supplementing plate. The rear floor left side bushing plate and the rear floor right side bushing plate are respectively positioned at the left side and the right side of the rear floor, the middle floor is positioned in front of the rear floor, and a rear suspension change air switch key is reserved between the middle floor and the rear floor. The structure realizes the universality of the sheet metal die under different platforms through the setting of the rear floor and the patch board. However, the structure still uses the car bodies with different structures to meet the arrangement requirements of different platforms, although the mould is universal, the lengths of the rear floor and the patch plates at two sides are changed, and therefore the universal use of the car body structures under different platforms cannot be realized.
Disclosure of Invention
The utility model provides a well back floor structure of general formula of electric motor car to solve and realize the general problem of automobile body structure under different seats and different power battery cloth.
The utility model aims at realizing through the following technical scheme:
a universal middle and rear floor structure comprises an outer edge beam, an inner edge beam, a middle floor front beam, a middle floor 8, a middle floor rear beam, a rear floor front beam, a rear floor 11, a rear floor middle beam 12, a rear floor rear beam 13, a tail plate 14 and a battery support;
the outer edge beam comprises an outer edge beam front section and an outer edge beam rear section; the middle floor front cross beam comprises a middle floor front upper cross beam 7 and a middle floor front lower cross beam 17; the middle floor rear cross beam comprises a middle floor rear upper cross beam 9 and a middle floor rear lower cross beam 20; the rear floor front cross beam comprises a rear floor front upper cross beam 10 and a rear floor front lower cross beam 23;
the middle floor front lower beam 17 is connected with a battery bracket; the outer side beam front section comprises a left side outer side beam front section 1 and a right side outer side beam front section 4 which are respectively connected with two sides of a middle floor front upper cross beam 7; the middle floor front upper cross beam 7 and the middle floor front lower cross beam 17 form a cavity;
the inner edge beam and the outer edge beam are connected to form a cavity; the middle floor 8 is provided with an opening, a middle floor rear lower beam 20 is connected below the opening, and a cavity is formed; 2 groups of beam frame structures are arranged below the middle floor 8, each group of beam frame structures comprises 1 middle floor lower longitudinal beam 19 and 2 battery rear fixing supports 18, and the beam frame structures and the middle floor form 2 cavities; the 2 groups of beam frame structures below the middle floor, the front lower beam 17 of the middle floor and the rear lower beam 20 of the middle floor form a beam structure in a shape of a Chinese character jing;
the rear floor 11 is connected with a rear floor front upper cross beam 10 and a rear floor middle cross beam 12;
the rear floor front upper cross beam 10 and the rear floor front lower cross beam 23 form a cavity;
the rear floor rear cross beam 13 and the tail plate 14 are respectively connected with the rear ends of the outer edge beams.
Furthermore, 6 groups of holes are formed in the middle floor front upper cross beam 7, and each group of holes respectively comprise a positioning hole and a nut hole and are used for installing, positioning and fixing the seat.
Further, the battery support includes a battery left support 16 and a battery right support 15.
Furthermore, battery fixing nut holes are respectively formed in the battery bracket and the front section of the outer side beam and used for fixing points in the middle area and the two sides of the power battery.
Further, the boundary beam includes boundary beam 2 in the left side and boundary beam 5 in the right side in, and boundary beam 2 is equipped with 2 group's trompils in the left side and the boundary beam 5 in the right side, is used for the fixed of two rows of seat both sides under four, five, six and seven configurations respectively.
Furthermore, the middle floor 8 is provided with 3 groups of holes for fixing the rear parts of the four-seat, five-seat, six-seat and seven-seat configured lower two-row seats.
Further, the battery rear fixing bracket 18 is provided with a nut hole for fixing the power battery.
Further, the 2-group beam structure forms 4 battery fixing points at the lower part of the middle floor 8, wherein the front 2 battery rear fixing brackets 18 are used for fixing the tail parts of the small-size batteries, and the rear 2 battery rear fixing brackets 18 are used for fixing the tail parts of the large-size batteries.
Further, the rear floor front upper cross beam 10 and the rear floor middle cross beam 12 are respectively provided with openings for fixing three rows of seats in a six-seat and seven-seat configuration.
Further, the common type middle rear floor structure further includes a middle floor lower reinforcing plate, which is divided into a middle floor right lower reinforcing plate 21 and a middle floor left lower reinforcing plate 22.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses the fixed demand of power battery of different seat quantity and different sizes can be compatible simultaneously to the general formula well back floor structure, has realized the unity of automobile body structure, has reduced bicycle cost, has reduced automobile body quantity thereby has reduced the mill and has discerned the degree of difficulty and the technology degree of difficulty;
2. the design of the front upper cross beam of the middle floor and the setting of a plurality of groups of seat fixing holes on the front upper cross beam ensure that seats with different configurations are fixed on the same part, and the universality of a vehicle body is ensured; meanwhile, the rigidity and the strength of a fixed point of the seat are further improved by the design of the front lower beam of the middle floor, and the dual purposes of improving the structural universality and the performance are realized;
3. the 2 groups of beam frame structures below the middle floor, the front lower beam of the middle floor and the rear lower beam of the middle floor form a beam structure whole in a shape like a Chinese character jing, so that the rigidity and the strength of the region are greatly improved, and the fixing supports behind 4 batteries are set at the position, so that the requirement of the fixing strength of the batteries with different sizes in the region can be met simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1-2 are schematic structural views of the universal middle and rear floor structure of the present invention.
In the figure, 1, a left outer side beam front section 2, a left inner side beam 3, a left outer side beam rear section 4, a right outer side beam front section 5, a right inner side beam 6, a right outer side beam rear section 7, a middle floor front upper cross beam 8, a middle floor 9, a middle floor rear upper cross beam 10, a rear floor front upper cross beam 11, a rear floor 12, a rear floor middle cross beam 13, a rear floor rear cross beam 14, a tail plate 15, a battery right side support 16, a battery left side support 17, a middle floor front lower cross beam 18, a battery rear fixed support 19, a middle floor lower longitudinal beam 20, a middle floor rear lower cross beam 21, a middle floor right lower reinforcing plate 22, a middle floor left lower reinforcing plate 23 and a rear floor front lower cross beam.
Detailed Description
The invention will be further described with reference to the following examples:
the present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 1-2, the utility model discloses rear floor structure in general comprises outer boundary beam, interior boundary beam, well floor front beam, well floor 8, well floor rear beam, back floor front beam, back floor 11, back floor middle beam 12, back floor rear beam 13, tailboard 14, battery support, well floor longitudinal girder 19 and well under-floor reinforcing plate.
The outer side beam comprises an outer side beam front section and an outer side beam rear section. The middle floor front cross beam comprises a middle floor front upper cross beam 7 and a middle floor front lower cross beam 17. The middle floor rear cross beam comprises a middle floor rear upper cross beam 9 and a middle floor rear lower cross beam 20. The rear floor front cross member comprises a rear floor front upper cross member 10 and a rear floor front lower cross member 23.
The middle floor front upper beam 7 is provided with 6 groups of holes, and each group of holes respectively comprise positioning holes and nut holes and are used for installing, positioning and fixing the seat. The 6 groups of holes can realize the fixing requirement of the front ends of the two rows of seats under the configuration of four seats, five seats, six seats and seven seats through different combinations. The middle floor front lower beam 17 is connected with the battery left side bracket 16 and the battery right side bracket 15. The left outer side beam front section 1 and the right outer side beam front section 4 are connected to two sides of a middle floor front upper cross beam 7. The battery bracket and the front section of the outer side beam are respectively provided with a battery fixing nut hole for fixing points at the middle area and two sides of the power battery, and the fixing points in the area are generally the same on batteries with different sizes. Meanwhile, the front upper cross beam 7 of the middle floor and the front lower cross beam 17 of the middle floor form a cavity, so that the rigidity and the strength of the seat fixing point and the battery fixing point can be effectively ensured.
The left inner edge beam 2 and the right inner edge beam 5 are provided with 2 groups of holes which are respectively used for fixing the fixing requirements of two sides of a lower two-row seat with four seats, five seats, six seats and seven seats. The middle floor 8 is provided with 3 groups of holes for fixing the fixing requirements of the rear parts of the lower two-row seats configured by four seats, five seats, six seats and seven seats. The inner edge beam and the outer edge beam are connected to form a cavity, so that the rigidity and the strength of the fixed point of the seat are effectively guaranteed. A middle floor rear lower cross beam 20 is connected below the 3 groups of holes of the middle floor 8, and a cavity is formed, so that the rigidity and the strength of a fixing point at the rear part of the seat are ensured.
And 2 groups of beam frame structures are arranged below the middle floor 8, each group of beam frame structures comprises 1 middle floor lower longitudinal beam 19 and 2 battery rear fixing supports 18, and the battery rear fixing supports 18 are provided with nut holes for fixing power batteries. The 2-group beam frame structure forms 4 battery fixing points at the lower part of the middle floor 8, wherein the front 2 battery rear fixing brackets 18 are used for fixing the tail parts of small-size batteries, and the rear 2 battery rear fixing brackets 18 are used for fixing the tail parts of large-size batteries. Through the structure, the fixation of different sizes under the same vehicle body structure is realized. Meanwhile, 2 cavities are formed between the beam frame structure and the middle floor, and the rigidity and the strength of a battery fixing point are effectively guaranteed.
The rear floor 11 is connected with a rear floor front upper beam 10 and a rear floor middle beam 12, which are respectively provided with openings for fixing three rows of seats under six seats and seven seats. Wherein, the front upper beam 10 of the rear floor and the front lower beam 23 of the rear floor form a cavity, which effectively ensures the strength and rigidity of the fixed positions of the three rows of seats. The rear floor rear cross beam 13 and the tail plate 14 are respectively connected with the rear ends of the outer edge beams, and play a role in transverse support.
According to the middle and rear floor structure, the seat mounting holes and the battery mounting holes are set at different positions, the four-seat, five-seat, six-seat and seven-seat configuration is realized, the power batteries with the large and small sizes are fixed under the same vehicle body structure, and the compatibility and flexibility of the vehicle body structure are greatly improved.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A floor structure after well of general formula which characterized in that: the floor comprises an outer edge beam, an inner edge beam, a middle floor front beam, a middle floor (8), a middle floor rear beam, a rear floor front beam, a rear floor (11), a rear floor middle beam (12), a rear floor rear beam (13), a tail plate (14) and a battery support;
the outer edge beam comprises an outer edge beam front section and an outer edge beam rear section; the middle floor front cross beam comprises a middle floor front upper cross beam (7) and a middle floor front lower cross beam (17); the middle floor rear cross beam comprises a middle floor rear upper cross beam (9) and a middle floor rear lower cross beam (20); the rear floor front cross beam comprises a rear floor front upper cross beam (10) and a rear floor front lower cross beam (23);
the middle floor front lower beam (17) is connected with the battery bracket; the outer side beam front section comprises a left outer side beam front section (1) and a right outer side beam front section (4) which are respectively connected to two sides of a front upper cross beam (7) of the middle floor; the middle floor front upper cross beam (7) and the middle floor front lower cross beam (17) form a cavity;
the inner edge beam and the outer edge beam are connected to form a cavity; the middle floor (8) is provided with an opening, a middle floor rear lower beam (20) is connected below the opening, and a cavity is also formed; 2 groups of beam frame structures are arranged below the middle floor (8), each group of beam frame structures comprises 1 middle floor lower longitudinal beam (19) and 2 battery rear fixing supports (18), and the beam frame structures and the middle floor form 2 cavities; the 2 groups of beam frame structures below the middle floor, the front lower beam (17) of the middle floor and the rear lower beam (20) of the middle floor form a beam structure in a shape of a Chinese character jing;
the rear floor (11) is connected with a front upper cross beam (10) of the rear floor and a middle cross beam (12) of the rear floor; the rear floor front upper cross beam (10) and the rear floor front lower cross beam (23) form a cavity; and the rear floor rear cross beam (13) and the tail plate (14) are respectively connected with the rear ends of the outer edge beams.
2. A universal mid-rear floor structure as set forth in claim 1, wherein: and 6 groups of openings are formed in the front upper beam (7) of the middle floor, and each group of openings respectively comprises a positioning hole and a nut hole and is used for installing, positioning and fixing the seat.
3. A universal mid-rear floor structure as set forth in claim 1, wherein: the battery support comprises a battery left side support (16) and a battery right side support (15).
4. A universal mid-rear floor structure as set forth in claim 1, wherein: and battery fixing nut holes are respectively formed in the battery bracket and the front section of the outer side beam and used for fixing points in the middle area and two sides of the power battery.
5. A universal mid-rear floor structure as set forth in claim 1, wherein: the utility model discloses a chair, including the interior boundary beam of interior boundary beam in the left side (2) and the right side (5), the boundary beam is equipped with 2 trompils in the left side (2) and the right side (5), is used for the fixed of two rows of seat both sides under four, five, six and seven configurations respectively.
6. A universal mid-rear floor structure as set forth in claim 1, wherein: the middle floor (8) is provided with 3 groups of holes for fixing the rear parts of the lower two-row seats in four-seat, five-seat, six-seat and seven-seat configurations.
7. A universal mid-rear floor structure as set forth in claim 1, wherein: and the battery rear fixing support (18) is provided with a nut hole for fixing the power battery.
8. A universal mid-rear floor structure as set forth in claim 1, wherein: the 2 groups of beam frame structures form 4 battery fixing points at the lower part of the middle floor (8), wherein the front 2 battery rear fixing brackets (18) are used for fixing the tail parts of the small-size batteries, and the rear 2 battery rear fixing brackets (18) are used for fixing the tail parts of the large-size batteries.
9. A universal mid-rear floor structure as set forth in claim 1, wherein: and the front upper cross beam (10) of the rear floor and the middle cross beam (12) of the rear floor are respectively provided with an opening for fixing three rows of seats under the arrangement of six seats and seven seats.
10. A universal mid-rear floor structure as set forth in claim 1, wherein: the floor slab further comprises a middle floor lower reinforcing plate which is divided into a middle floor right lower reinforcing plate (21) and a middle floor left lower reinforcing plate (22).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022999734.9U CN214396975U (en) | 2020-12-14 | 2020-12-14 | Universal middle-rear floor structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022999734.9U CN214396975U (en) | 2020-12-14 | 2020-12-14 | Universal middle-rear floor structure |
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| CN214396975U true CN214396975U (en) | 2021-10-15 |
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| CN202022999734.9U Active CN214396975U (en) | 2020-12-14 | 2020-12-14 | Universal middle-rear floor structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815734A (en) * | 2021-11-02 | 2021-12-21 | 上海洛轲智能科技有限公司 | Vehicle body system structure |
| CN114750830A (en) * | 2022-04-19 | 2022-07-15 | 浙江零跑科技股份有限公司 | Vehicle frame structure |
| GB2604010A (en) * | 2020-12-07 | 2022-08-24 | Porsche Ag | Body floor for a battery electric vehicle |
| CN115140201A (en) * | 2022-07-31 | 2022-10-04 | 东风汽车集团股份有限公司 | Rear floor assembly adaptive to different seat combination modes and SUV (sports utility vehicle) |
| CN115257498A (en) * | 2022-07-20 | 2022-11-01 | 岚图汽车科技有限公司 | Leg support mounting structure and vehicle |
| CN115402423A (en) * | 2022-08-10 | 2022-11-29 | 浙江联控技术有限公司 | Automobile floor, white automobile body and automobile |
| WO2024017169A1 (en) * | 2022-07-20 | 2024-01-25 | 岚图汽车科技有限公司 | Leg rest mounting structure, and vehicle |
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2020
- 2020-12-14 CN CN202022999734.9U patent/CN214396975U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2604010A (en) * | 2020-12-07 | 2022-08-24 | Porsche Ag | Body floor for a battery electric vehicle |
| GB2604010B (en) * | 2020-12-07 | 2023-04-12 | Porsche Ag | Body floor for a battery electric vehicle |
| US11820219B2 (en) | 2020-12-07 | 2023-11-21 | Dr. Ing. H. C. F. Porsche Ag | Body floor for a battery electric vehicle |
| CN113815734A (en) * | 2021-11-02 | 2021-12-21 | 上海洛轲智能科技有限公司 | Vehicle body system structure |
| CN114750830A (en) * | 2022-04-19 | 2022-07-15 | 浙江零跑科技股份有限公司 | Vehicle frame structure |
| CN114750830B (en) * | 2022-04-19 | 2023-10-13 | 浙江零跑科技股份有限公司 | Frame structure |
| CN115257498A (en) * | 2022-07-20 | 2022-11-01 | 岚图汽车科技有限公司 | Leg support mounting structure and vehicle |
| CN115257498B (en) * | 2022-07-20 | 2023-05-16 | 岚图汽车科技有限公司 | Leg holds in palm mounting structure and vehicle |
| WO2024017169A1 (en) * | 2022-07-20 | 2024-01-25 | 岚图汽车科技有限公司 | Leg rest mounting structure, and vehicle |
| CN115140201A (en) * | 2022-07-31 | 2022-10-04 | 东风汽车集团股份有限公司 | Rear floor assembly adaptive to different seat combination modes and SUV (sports utility vehicle) |
| CN115402423A (en) * | 2022-08-10 | 2022-11-29 | 浙江联控技术有限公司 | Automobile floor, white automobile body and automobile |
| WO2024032223A1 (en) * | 2022-08-10 | 2024-02-15 | 浙江吉利控股集团有限公司 | Automobile floor, body-in-white, and automobile |
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