CN211765900U - Lower body structure of electric automobile - Google Patents

Lower body structure of electric automobile Download PDF

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Publication number
CN211765900U
CN211765900U CN201922432723.XU CN201922432723U CN211765900U CN 211765900 U CN211765900 U CN 211765900U CN 201922432723 U CN201922432723 U CN 201922432723U CN 211765900 U CN211765900 U CN 211765900U
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CN
China
Prior art keywords
floor
cross beam
longitudinal beams
plate
longitudinal
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Expired - Fee Related
Application number
CN201922432723.XU
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Chinese (zh)
Inventor
龚政辉
龚占鹏
洪燕
马德仁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zotye New Energy Automobile Co ltd
Original Assignee
Zotye New Energy Automobile Co ltd
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Priority to CN201922432723.XU priority Critical patent/CN211765900U/en
Application granted granted Critical
Publication of CN211765900U publication Critical patent/CN211765900U/en
Expired - Fee Related legal-status Critical Current
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

The utility model relates to an electric automobile lower part automobile body structure, affiliated electric automobile technical field, including preceding floor assembly, preceding floor assembly front end is equipped with the cabin assembly, and preceding floor assembly rear end is equipped with back floor assembly, is equipped with the battery package between back floor assembly and preceding floor assembly. The front floor assembly comprises a pair of front floor longitudinal beams, and a front seat front cross beam and a front seat rear cross beam are arranged between the two front floor longitudinal beams. The cabin assembly comprises more than two front longitudinal beams, and a front baffle plate cross beam is arranged between the rear section of each front longitudinal beam and the front longitudinal beam. The rear floor assembly comprises more than two rear longitudinal beams, a rear floor middle cross beam is arranged between a rear floor rear cross beam bottom plate and the battery pack, and a rear floor front cross beam is arranged between the rear longitudinal beams and the rear sections of the front floor longitudinal beams. The battery has the characteristics of high structural strength, good cruising ability, large battery space and long service life. The integrity of the whole collision structure is ensured, and the deformation of the frame structure is restrained. The battery pack arrangement space requirement can be met, and meanwhile the safety performance of the vehicle body can be guaranteed.

Description

Lower body structure of electric automobile
Technical Field
The utility model relates to an electric automobile technical field, concretely relates to electric automobile lower part body structure.
Background
With the increase of the automobile holding capacity and the increasing demand of people for improving the living environment, the electric automobile becomes a new way for public travel, is green and environment-friendly, and can meet the higher and higher requirements of various national regulations on emission. The greatest anxiety of the majority of consumers to the electric automobile comes from the endurance mileage and the collision safety performance. The requirement of people on high endurance of the electric vehicle inevitably increases the capacity of the battery pack, and the provision of the battery pack can meet the arrangement space of a large battery pack and ensure the safety of a vehicle body structure becomes a great challenge of vehicle body structure design. The weight of the electric vehicle with high endurance is generally 200-300 kg heavier than that of a traditional fuel vehicle, and meanwhile, the arrangement of the battery pack occupies the design space of a vehicle body structure.
Patent document CN 201811553468.8 discloses an electric vehicle body frame bottom structure. In a vehicle having such a lower vehicle body structure, a new structure formed by the rear part of the front side frame and the rocker serves as one main load transmission path, and the side frame of the center tunnel serves as the other load transmission path, thereby ensuring the safety performance. In order to further improve the endurance of the electric vehicle, it is necessary to reduce the weight of the vehicle including the vehicle body. In this regard, the rear portion of the front side member and the rocker employed in the above-mentioned patent document form a new load transmission path, and the Y-direction distance between the rocker and the front side member is large, so that the structure of this region must be strong to ensure smooth load transmission. To achieve structural strength in this location, the build-up of structural members becomes necessary.
Meanwhile, the side beam of the middle channel is used as another load transmission path of the carrier, and due to the existence of the battery pack (battery pack installation space) and the guarantee of the ground clearance (ground clearance space), the size of the cross section of the side beam is very limited, and the load which can be actually borne is necessarily limited.
Disclosure of Invention
The utility model discloses there is structural strength low, the duration is poor among the main prior art of solving, the battery space is little and life is short not enough, provides an electric automobile lower part automobile body structure, and it has structural strength height, the duration is good, the battery space is big and long service life's characteristics. The collision structure is decomposed through multiple transmission paths, the integrity and the stability of the whole collision structure are guaranteed, and the deformation of the frame structure is restrained. The battery pack arrangement space requirement can be met, and meanwhile the safety performance of the vehicle body can be guaranteed.
The above technical problem of the present invention can be solved by the following technical solutions:
the lower vehicle body structure of the electric vehicle comprises a front floor assembly, wherein a cabin assembly is arranged at the front end of the front floor assembly, a rear floor assembly is arranged at the rear end of the front floor assembly, and a battery pack is arranged between the rear floor assembly and the front floor assembly. The front floor assembly comprises a pair of front floor longitudinal beams, a front seat front cross beam and a front seat rear cross beam are arranged between the two front floor longitudinal beams, and a front floor longitudinal beam rear section is arranged between the front floor longitudinal beams and the rear floor assembly. The engine room assembly comprises more than two front longitudinal beams, front longitudinal beam rear sections are arranged between the front longitudinal beams and the front floor longitudinal beams, and front baffle beams are arranged between the front longitudinal beam rear sections and the front longitudinal beams. The rear floor assembly comprises more than two rear longitudinal beams, a rear floor rear cross beam bottom plate is arranged between the two rear longitudinal beams, a rear floor middle cross beam is arranged between the rear floor rear cross beam bottom plate and the battery pack, and a rear floor front cross beam is arranged between the rear longitudinal beams and the rear sections of the front floor longitudinal beams. In side impact, the rear floor front cross member and the middle cross member also play a role in dispersing the impact load, and the deformation of the lower vehicle body in the impact is restrained.
Preferably, the upper ends of the front seat front beam and the front seat rear beam are provided with middle channel bodies, and the middle channel bodies are provided with middle channel upper reinforcing plates which are in embedded sleeve joint with the middle channel bodies.
Preferably, a middle channel front reinforcing plate is arranged between the middle channel body and the front baffle cross beam, a front baffle lower cross beam connecting plate is arranged between the middle channel front reinforcing plate and the front baffle cross beam, and a front baffle lower cross beam in bolted connection with the front baffle lower cross beam connecting plate is arranged at the lower end of the middle channel front reinforcing plate.
The deformation of the cab can be reduced, and the lower beam and the connecting plate of the front baffle can bear the protection of the battery pack in the collision process. The arrangement space of the battery pack is made the way to the maximum extent by the longitudinal beam of the front floor, and the endurance of the whole vehicle is ensured. Meanwhile, the battery pack is prevented from being greatly extruded in the collision process.
Preferably, the outer sides of the front floor longitudinal beams are provided with threshold inner plates, and floor threshold connecting plates are arranged between the threshold inner plates and the front cross beam of the front seat and between the threshold inner plates and the rear cross beam of the front seat.
Preferably, an A-pillar lower inner plate is arranged between the doorsill inner plate and the front baffle beam, and a doorsill connecting plate is arranged between the A-pillar lower inner plate and the doorsill inner plate.
Preferably, the rear section of the front longitudinal beam is provided with a sled plate in screw connection with the front floor longitudinal beam.
Preferably, a rear floor rear cross beam is arranged at the upper end of the bottom plate of the rear floor rear cross beam, and a rear floor rear cross beam reinforcing plate is arranged between the two ends of the rear floor rear cross beam and the rear longitudinal beam.
Preferably, a rear longitudinal beam outer plate is arranged in the rear longitudinal beam, and a rear shock absorber supporting plate is arranged on the outer side of the rear longitudinal beam outer plate.
The utility model discloses can reach following effect:
the utility model provides an electric automobile lower part body structure compares with prior art, has structural strength height, duration good, the battery space is big and long service life's characteristics. The collision structure is decomposed through multiple transmission paths, the integrity and the stability of the whole collision structure are guaranteed, and the deformation of the frame structure is restrained. The battery pack arrangement space requirement can be met, and meanwhile the safety performance of the vehicle body can be guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic top view of the present invention.
Fig. 3 is a side view of the structure of the present invention.
In the figure: the structure comprises a cabin assembly 1, a front floor assembly 2, a rear floor assembly 3, a battery pack 4, a front longitudinal beam 11, a front longitudinal beam rear section 12, a front baffle cross beam 13, a front baffle lower cross beam connecting plate 14, a front baffle lower cross beam 15, a threshold connecting plate 16, an A-pillar lower inner plate 17, a middle tunnel front reinforcing plate 18, a sled plate 19, a threshold inner plate 21, a front seat front cross beam 22, a front floor longitudinal beam 23, a floor threshold connecting plate 24, a front seat rear cross beam 25, a middle tunnel body 26, a front floor longitudinal beam rear section 27, a middle tunnel upper reinforcing plate 28, a rear floor front cross beam 31, a rear floor middle cross beam 32, a rear floor rear cross beam bottom plate 33, a rear longitudinal beam 34, a rear shock absorber supporting plate 35, a rear floor rear cross beam reinforcing plate 36, a rear floor rear cross beam 37 and a rear longitudinal beam outer plate 38.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): as shown in fig. 1, 2 and 3, the lower body structure of the electric vehicle comprises a front floor assembly 2, a cabin assembly 1 is arranged at the front end of the front floor assembly 2, a rear floor assembly 3 is arranged at the rear end of the front floor assembly 2, and a battery pack 4 is arranged between the rear floor assembly 3 and the front floor assembly 2.
The cabin assembly 1 comprises two front longitudinal beams 11 which are symmetrically distributed, front longitudinal beam rear sections 12 are arranged between the front longitudinal beams 11 and front floor longitudinal beams 23, and sled plates 19 which are in screw connection with the front floor longitudinal beams 23 are arranged on the front longitudinal beam rear sections 12. A front baffle cross beam 13 is arranged between the front longitudinal beam rear section 12 and the front longitudinal beam 11, an A-pillar lower inner plate 17 is arranged between the threshold inner plate 21 and the front baffle cross beam 13, and a threshold connecting plate 16 is arranged between the A-pillar lower inner plate 17 and the threshold inner plate 21. A middle channel front reinforcing plate 18 is arranged between the middle channel body 26 and the front baffle beam 13, a front baffle lower beam connecting plate 14 is arranged between the middle channel front reinforcing plate 18 and the front baffle beam 13, and a front baffle lower beam 15 connected with the front baffle lower beam connecting plate 14 through bolts is arranged at the lower end of the middle channel front reinforcing plate 18.
The front floor assembly 2 comprises a pair of front floor longitudinal beams 23, the outer sides of the front floor longitudinal beams 23 are respectively provided with a threshold inner plate 21, and floor threshold connecting plates 24 are respectively arranged between the threshold inner plate 21 and a front seat front cross beam 22 and between the threshold inner plate 21 and a front seat rear cross beam 25. A front seat front cross beam 22 and a front seat rear cross beam 25 are arranged between the two front floor longitudinal beams 23, a middle channel body 26 is arranged at the upper ends of the front seat front cross beam 22 and the front seat rear cross beam 25, and a middle channel upper reinforcing plate 28 which is in clamping and sleeving connection with the middle channel body 26 is arranged on the middle channel body 26. A front floor longitudinal beam rear section 27 is arranged between the front floor longitudinal beam 23 and the rear floor assembly 3.
The rear floor assembly 3 comprises two rear longitudinal beams 34 which are symmetrically distributed, a rear longitudinal beam outer plate 38 is arranged in each rear longitudinal beam 34, and a rear shock absorber support plate 35 is arranged on the outer side of each rear longitudinal beam outer plate 38. A rear floor rear cross beam bottom plate 33 is arranged between the two rear longitudinal beams 34, a rear floor rear cross beam 37 is arranged at the upper end of the rear floor rear cross beam bottom plate 33, and rear floor rear cross beam reinforcing plates 36 are arranged between the two ends of the rear floor rear cross beam 37 and the rear longitudinal beams 34. A rear floor middle cross beam 32 is arranged between the rear floor rear cross beam bottom plate 33 and the battery pack 4, and a rear floor front cross beam 31 is arranged between the rear longitudinal beam 34 and the front floor longitudinal beam rear section 27.
In conclusion, the lower body structure of the electric automobile has the characteristics of high structural strength, good cruising ability, large battery space and long service life. The collision structure is decomposed through multiple transmission paths, the integrity and the stability of the whole collision structure are guaranteed, and the deformation of the frame structure is restrained. The battery pack arrangement space requirement can be met, and meanwhile the safety performance of the vehicle body can be guaranteed.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without deviating from the basic characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
In conclusion, the above description is only the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims (8)

1. An electric automobile lower part body structure which characterized in that: the electric vehicle front floor assembly comprises a front floor assembly (2), wherein the front end of the front floor assembly (2) is provided with an engine room assembly (1), the rear end of the front floor assembly (2) is provided with a rear floor assembly (3), and a battery pack (4) is arranged between the rear floor assembly (3) and the front floor assembly (2); the front floor assembly (2) comprises a pair of front floor longitudinal beams (23), a front seat front cross beam (22) and a front seat rear cross beam (25) are arranged between the two front floor longitudinal beams (23), and a front floor longitudinal beam rear section (27) is arranged between the front floor longitudinal beams (23) and the rear floor assembly (3); the nacelle assembly (1) comprises more than two front longitudinal beams (11), front longitudinal beam rear sections (12) are arranged between the front longitudinal beams (11) and the front floor longitudinal beams (23), and a front baffle plate cross beam (13) is arranged between the front longitudinal beam rear sections (12) and the front longitudinal beams (11); the rear floor assembly (3) comprises more than two rear longitudinal beams (34), a rear floor rear cross beam bottom plate (33) is arranged between the two rear longitudinal beams (34), a rear floor middle cross beam (32) is arranged between the rear floor rear cross beam bottom plate (33) and the battery pack (4), and a rear floor front cross beam (31) is arranged between the rear longitudinal beams (34) and the front floor longitudinal beam rear section (27).
2. The electric vehicle lower body structure according to claim 1, characterized in that: the upper ends of the front seat front beam (22) and the front seat rear beam (25) are provided with a middle channel body (26), and the middle channel body (26) is provided with a middle channel upper reinforcing plate (28) which is in clamping embedded type sleeve joint with the middle channel body (26).
3. The electric vehicle lower body structure according to claim 2, characterized in that: middle channel body (26) and preceding fender crossbeam (13) between be equipped with preceding reinforcing plate (18) of middle channel, preceding reinforcing plate (18) of middle channel and preceding fender crossbeam (13) between be equipped with preceding fender lower beam connecting plate (14), preceding fender lower beam (15) of reinforcing plate (18) lower extreme before the middle channel be equipped with preceding fender lower beam connecting plate (14) looks bolted connection.
4. The electric vehicle lower body structure according to claim 1, characterized in that: the outer sides of the front floor longitudinal beams (23) are respectively provided with a threshold inner plate (21), and floor threshold connecting plates (24) are respectively arranged between the threshold inner plates (21) and the front seat front cross beam (22) and between the threshold inner plates (21) and the front seat rear cross beam (25).
5. The electric vehicle lower body structure according to claim 4, characterized in that: a lower column inner plate (17) is arranged between the inner sill plate (21) and the front baffle beam (13), and a sill connecting plate (16) is arranged between the lower column inner plate (17) and the inner sill plate (21).
6. The electric vehicle lower body structure according to claim 1, characterized in that: and a ski board (19) in screw connection with the front floor longitudinal beam (23) is arranged on the rear section (12) of the front longitudinal beam.
7. The electric vehicle lower body structure according to claim 1, characterized in that: the rear floor rear cross beam is characterized in that a rear floor rear cross beam (37) is arranged at the upper end of the rear floor rear cross beam bottom plate (33), and rear floor rear cross beam reinforcing plates (36) are arranged between the two ends of the rear floor rear cross beam (37) and the rear longitudinal beams (34).
8. The electric vehicle lower body structure according to claim 1, characterized in that: a rear longitudinal beam outer plate (38) is arranged in the rear longitudinal beam (34), and a rear shock absorber supporting plate (35) is arranged on the outer side of the rear longitudinal beam outer plate (38).
CN201922432723.XU 2019-12-30 2019-12-30 Lower body structure of electric automobile Expired - Fee Related CN211765900U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922432723.XU CN211765900U (en) 2019-12-30 2019-12-30 Lower body structure of electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922432723.XU CN211765900U (en) 2019-12-30 2019-12-30 Lower body structure of electric automobile

Publications (1)

Publication Number Publication Date
CN211765900U true CN211765900U (en) 2020-10-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922432723.XU Expired - Fee Related CN211765900U (en) 2019-12-30 2019-12-30 Lower body structure of electric automobile

Country Status (1)

Country Link
CN (1) CN211765900U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113540646A (en) * 2021-06-25 2021-10-22 浙江零跑科技股份有限公司 Storage type electric vehicle battery pack integrated structure
CN113602364A (en) * 2021-07-28 2021-11-05 岚图汽车科技有限公司 Threshold longeron, electric automobile body frame and electric automobile
GB2604010A (en) * 2020-12-07 2022-08-24 Porsche Ag Body floor for a battery electric vehicle

Cited By (5)

* Cited by examiner, † Cited by third party
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
CN113540646A (en) * 2021-06-25 2021-10-22 浙江零跑科技股份有限公司 Storage type electric vehicle battery pack integrated structure
CN113602364A (en) * 2021-07-28 2021-11-05 岚图汽车科技有限公司 Threshold longeron, electric automobile body frame and electric automobile

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20201027

Termination date: 20211230