CN110518171A - A kind of lightweight aluminium body structure - Google Patents

A kind of lightweight aluminium body structure Download PDF

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Publication number
CN110518171A
CN110518171A CN201910932563.7A CN201910932563A CN110518171A CN 110518171 A CN110518171 A CN 110518171A CN 201910932563 A CN201910932563 A CN 201910932563A CN 110518171 A CN110518171 A CN 110518171A
Authority
CN
China
Prior art keywords
profile
lower box
body structure
box lid
upper box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910932563.7A
Other languages
Chinese (zh)
Inventor
李世明
徐秋鹏
李鑫
毛晓翔
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.)
Jiangxi Special Automobile Technology Co Ltd
Original Assignee
Jiangxi Special Automobile Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangxi Special Automobile Technology Co Ltd filed Critical Jiangxi Special Automobile Technology Co Ltd
Priority to CN201910932563.7A priority Critical patent/CN110518171A/en
Publication of CN110518171A publication Critical patent/CN110518171A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The invention discloses a kind of lightweight aluminium body structure, including upper box lid and lower box, the upper box lid is mounted by means of bolts on the top of lower box, and battery modules and its attachment are provided between the upper box lid and lower box;The lower box includes bottom plate, the upper face of the bottom plate is welded with shape of peripheral frame, the shape of peripheral frame includes the first profile, the 4th profile and the 5th profile, the second profile and third profile are fixedly welded on the inside of the shape of peripheral frame, sealing plane is provided on the outside of first profile, the sealing plane upper surface is equipped with rivet nut.The present invention uses the upper box lid of lightweight aluminum profile lower box and high strength composite, in the case that cabinet intensity meets use, box weight decline, and lower box is formed by welding by multiple profiles, without small mounting bracket inside lower box, positioning is convenient, and each hole position accuracy can more preferably guarantee.

Description

A kind of lightweight aluminium body structure
Technical field
The present invention relates to battery of electric vehicle technical field, specially a kind of lightweight aluminium body structure.
Background technique
Nowadays, the new-energy automobile based on electric vehicle is quickly grown, and people require to get over to the continual mileage of electric vehicle Come higher.Battery pack energizes component as the core of electric vehicle, fills the promotion of electricity and energy density in electric vehicle driving Journey has a great impact, therefore reduces the weight of battery pack as far as possible, and exploitation lightweight cabinet is particularly important.
Conventional batteries packet uses steel welding upper and lower box, sheet metal box body structure group substantially at consistent, by metal plate covering and Interior external reinforcing ribs are welded, and box weight is opposite to lay particular stress on, and moulding process is more, and weight does not tend to decrease, and are easy to increase electric vehicle Energy consumption.It would therefore be desirable to propose that a kind of moulding process is simple and the lightweight aluminium chair mechanisms of lighter weight.
Summary of the invention
The purpose of the present invention is to provide a kind of lightweight aluminium body structures, using lightweight aluminum profile lower box and high intensity The upper box lid of composite material, in the case that cabinet intensity meets use, box weight decline, and lower box is welded by multiple profiles It constitutes, without small mounting bracket inside lower box, positioning is convenient, and each hole position accuracy can more preferably guarantee, to solve above-mentioned background skill The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme:
A kind of lightweight aluminium body structure, including upper box lid and lower box, the upper box lid are mounted by means of bolts on The top of lower box is provided with battery modules and its attachment between the upper box lid and lower box;The lower box includes bottom Plate, the upper face of the bottom plate are welded with shape of peripheral frame, and the shape of peripheral frame includes the first profile, the 4th profile and the 5th Profile is fixedly welded with the second profile and third profile on the inside of the shape of peripheral frame, is provided on the outside of first profile Sealing plane, the sealing plane upper surface are equipped with rivet nut.
Preferably, gasket is provided at the fixing assembling between the upper box lid and lower box.
Preferably, the battery modules are provided with one layer, two layers or three layers.
Preferably, the welding surface of the first profile of the shape of peripheral frame, the 4th profile and the 5th profile and bottom plate is using full Weldering sealing is fixed.
Preferably, first profile, the second profile, third profile, the 4th profile and the 5th profile are disposed as gently Matter aluminium alloy extrusions.
Preferably, the upper box lid is set as the glass fibre lid of composite material, and the two sides of upper box lid are provided with and turn over Side, the flange of the upper box lid two sides are bolted in the rivet nut for installing lower first profile.
Preferably, it is fixedly connected with positioning pin on the sealing plane of the lower box, is opened up on the flange of the upper box lid There is location hole corresponding with positioning pin.
Preferably, as the step surface for being provided with battery modules installation on the second profile of reinforcing beam and third profile.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention uses the upper box lid of lightweight aluminum profile lower box and high strength composite, and cabinet intensity, which meets, to be used In the case where, box weight decline, and lower box is formed by welding by multiple profiles, it is fixed without small mounting bracket inside lower box Position is convenient, and each hole position accuracy can more preferably guarantee;
2, the aluminium profile structure that the present invention uses is hollow, and weight further declines, and the design of profile section is simple, variation spirit It is living, it improves design efficiency and section bar extrusion simple process, production efficiency is higher;And aluminium alloy has preferable corrosion resistance, matches Surface covering is closed, cabinet can reach comprehensive anti-corrosion, and service life increases.
3, it is welded to form due to the present invention using multiple aluminium alloy extrusions, disparity items battery pack can share profile and cut Face shortens the development cycle to same platform development project, it is significant to reduce development cost.
Detailed description of the invention
Fig. 1 is assembling structure schematic diagram of the invention;
Fig. 2 is the welding structure schematic diagram of lower box of the present invention;
Fig. 3 is the structural schematic diagram in the first profile of the invention and its section;
Fig. 4 is the structural schematic diagram in the second profile of the invention and its section;
Fig. 5 is the structural schematic diagram in third profile of the present invention and its section;
Fig. 6 is the structural schematic diagram in the 4th profile of the invention and its section;
Fig. 7 is the structural schematic diagram in the 5th profile of the invention and its section.
In figure: 1, the first profile;2, the second profile;3, third profile;4, the 4th profile;5, the 5th profile;7, upper box lid; 8, lower box;9, bottom plate;10, battery modules;11, sealing plane;12, rivet nut;13, positioning pin.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Fig. 1-7 is please referred to, the present invention provides a kind of technical solution: the lightweight aluminium body structure, including upper box lid 7 is under Cabinet 8, upper box lid 7 are mounted by means of bolts on the top of lower box 8, battery mould are provided between upper box lid 7 and lower box 8 Group 10 and its attachment;Lower box 8 includes bottom plate 9, and the upper face of bottom plate 9 is welded with shape of peripheral frame, and shape of peripheral frame includes First profile 1, the 4th profile 4 and the 5th profile 5 are fixedly welded with the second profile 2 and third profile 3 on the inside of shape of peripheral frame, The outside of first profile 1 is provided with sealing plane 11, and 11 upper surface of sealing plane is equipped with rivet nut 12.
Gasket is provided at fixing assembling between upper box lid 7 and lower box 8.Battery modules 10 are provided with one layer, two Layer or three layers.The first profile 1, the 4th profile 4 and the 5th profile 5 of shape of peripheral frame and the welding surface of bottom plate 9 use and are fully welded sealing It is fixed.First profile 1, the second profile 2, third profile 3, the 4th profile 4 and the 5th profile 5 are disposed as light aluminum alloy type Material.Upper box lid 7 is set as the glass fibre lid of composite material, and the two sides of upper box lid 7 are provided with flange, 7 two sides of upper box lid Flange be bolted in the rivet nut 12 for installing lower first profile 1.It is fixedly connected on the sealing plane 11 of lower box 8 There is positioning pin 13, location hole corresponding with positioning pin 13 is offered on the flange of upper box lid 7.The second profile 2 as reinforcing beam With the step surface for being provided with 10 installation of battery modules on third profile 3.
Upper box lid 7 use lighting the Molding Forming of Composites, lower box 8 by the welding of multiple section aluminium alloy extrusions and At battery modules 10 (battery modules 10 are not limited only to one layer) and related accessories are mounted in lower box 8.This programme is using a variety of Two kinds of fastening marks of rivet nut 12 and steel-wire screw-socket are respectively adopted in section lightweight aluminium section welded lower box 8, different cross section profile Quasi- part is mechanically connected, and profile plays cabinet on cabinet and reinforces, installs battery modules, with upper cover cooperation sealing and vehicle support Frame installation effect.Profile section flexible design, can be adjusted according to structure installation requirements and profile aluminium extruded is easy to process, cost It is lower.The present invention cooperates composite material upper cover using aluminum profile cabinet, and specific strength is high, and manufacturing process is easy, that is, has saved material Achieve the purpose that box weight mitigates again.
Profile on lower box 8 is not limited to 5 kinds of sections, can use optimal design by actual requirement.First profile 1 is case Body side bar, have planar seal surface, sealing surface rivet nut and upper box lid cooperation fasten, the first profile 1 along side bar side have compared with Wide flange, flange are vehicle mounting bracket, and flange has vehicle positioning pin and vehicle fixation hole, and further flange has battery pack to hang Fill hole;Second profile 2 is box house crossbeam, has multiple steps, and step surface installs battery modules 10, and step is not limited to profile Section, can add acquisition by machine, and 2 section outer profile of the second profile is usually inverted T shaped;Third profile 3 is box house crossbeam, With multiple steps, for step surface for installing battery modules 10, step is not limited to section material section, acquisition can be added by machine, together When third profile 3 there are two layers of module bracket step surface of support;4th profile 4 is side bar after cabinet, has horizontal seal face, close Rivet nut 12 and upper box lid 7 cooperation of cover fasten, and the 4th profile 4 has the step for being higher by sealing surface, can support two layers Module bracket;5th profile 5 is cabinet front side beam, has horizontal seal face, and sealing surface rivet nut and upper box lid cooperation fasten, 5th profile 5 has multiple steps, and step surface installs battery modules 10, and step is not limited to section material section, can be added by machine and be obtained .
Bottom plate 9 is a monolith solid base plate, supports internal crossbeam and seal case, bottom plate to be not limited to solid slab, can adopt It is formed with muti-piece with section profile plate welding.First profile 1, the second profile 2, third profile 3, the 4th profile 4, the 5th profile 5, base platform (bottom plate 9) can carry out meeting corner cooperation and attachment installation after different degrees of machine adds as required.First type Material 1, the 4th profile 4, the 5th profile 5 and welding requirements on the outside of base platform (bottom plate 9) are fully welded, and meet box sealing;Upper box lid 7 With flange, flange and the first profile 1, the 4th profile 4,5 sealing surface of the 5th profile cooperate.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (8)

1. a kind of lightweight aluminium body structure, including upper box lid (7) and lower box (8), it is characterised in that: the upper box lid (7) It is mounted by means of bolts on the top of lower box (8), is provided with battery modules between the upper box lid (7) and lower box (8) (10) and its attachment;
The lower box (8) includes bottom plate (9), and the upper face of the bottom plate (9) is welded with shape of peripheral frame, the frame type Material includes the first profile (1), the 4th profile (4) and the 5th profile (5), is fixedly welded with second on the inside of the shape of peripheral frame Profile (2) and third profile (3) are provided with sealing plane (11) on the outside of first profile (1), the sealing plane (11) Upper surface is equipped with rivet nut (12).
2. a kind of lightweight aluminium body structure according to claim 1, it is characterised in that: the upper box lid (7) and nowel Gasket is provided at fixing assembling between body (8).
3. a kind of lightweight aluminium body structure according to claim 1, it is characterised in that: battery modules (10) setting There is one layer, two layers or three layers.
4. a kind of lightweight aluminium body structure according to claim 1, it is characterised in that: the first type of the shape of peripheral frame Material (1), the 4th profile (4) and the 5th profile (5) and the welding surface of bottom plate (9) are fixed using sealing is fully welded.
5. a kind of lightweight aluminium body structure according to claim 1, it is characterised in that: first profile (1), second Profile (2), third profile (3), the 4th profile (4) and the 5th profile (5) are disposed as light aluminum alloy profile.
6. a kind of lightweight aluminium body structure according to claim 1, it is characterised in that: the upper box lid (7) is set as The glass fibre lid of composite material, and the two sides of upper box lid (7) are provided with flange, the flange of upper box lid (7) two sides is logical Bolt is crossed to be fixedly mounted in the rivet nut (12) of lower first profile (1).
7. a kind of lightweight aluminium body structure according to claim 1, it is characterised in that: the sealing of the lower box (8) It is fixedly connected with positioning pin (13), is offered on the flange of the upper box lid (7) corresponding with positioning pin (13) in plane (11) Location hole.
8. a kind of lightweight aluminium body structure according to claim 1, it is characterised in that: the second profile as reinforcing beam (2) and on third profile (3) it is provided with the step surface of battery modules (10) installation.
CN201910932563.7A 2019-09-30 2019-09-30 A kind of lightweight aluminium body structure Pending CN110518171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910932563.7A CN110518171A (en) 2019-09-30 2019-09-30 A kind of lightweight aluminium body structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910932563.7A CN110518171A (en) 2019-09-30 2019-09-30 A kind of lightweight aluminium body structure

Publications (1)

Publication Number Publication Date
CN110518171A true CN110518171A (en) 2019-11-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910932563.7A Pending CN110518171A (en) 2019-09-30 2019-09-30 A kind of lightweight aluminium body structure

Country Status (1)

Country Link
CN (1) CN110518171A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112895872A (en) * 2021-03-05 2021-06-04 山东交通学院 Power battery box for truck

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112895872A (en) * 2021-03-05 2021-06-04 山东交通学院 Power battery box for truck
CN112895872B (en) * 2021-03-05 2022-06-24 山东交通学院 Power battery box for truck

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