CN206412396U - A kind of lightweight battery case based on lattice structure - Google Patents
A kind of lightweight battery case based on lattice structure Download PDFInfo
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- CN206412396U CN206412396U CN201720085257.0U CN201720085257U CN206412396U CN 206412396 U CN206412396 U CN 206412396U CN 201720085257 U CN201720085257 U CN 201720085257U CN 206412396 U CN206412396 U CN 206412396U
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- casing
- lattice structure
- battery case
- support tube
- case lid
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a kind of lightweight battery case based on lattice structure, including casing and case lid, arch anticollision pilot beam is equipped with the two sides of the casing, the both sides of the casing, which are placed, is equipped with half suspension type connecting plate, the bottom of the casing is provided with radiator, vapor chamber is equipped with the case lid back side, the bottom of casing and inwall, sealing joint strip is provided between the case lid and casing, the case lid and casing are connected by safety fastener；The casing is made up of inside of the composite plate of lattice structure；The utility model realizes the lightweight of battery box body on the premise of ensureing that battery case various aspects of performance is unaffected.
Description
Technical field
The utility model is related to pure electric vehicle battery case Optimal Structure Designing field, more particularly to a kind of to be based on dot matrix knot
The lightweight battery case of structure.
Background technology
In recent years, auto output and recoverable amount are continuously increased the problem of exacerbating in terms of the energy, environment, safety, section
Environmentally friendly the matter of utmost importance that Global Auto industry has faced can be turned into.Research shows that automotive light weight technology is reduction energy consumption, reduces discharge
One of maximally effective measure.In terms of passive safety, lightweight can shorten braking distance, reduction collision inertia and collide
The lightweight of kinetic energy in journey, particularly auto parts and components can not only reduce energy consumption, can also reduce into a certain extent
Originally with improvement performance, so the exploitation of automobile industry Lightweight Technology and application are imperative.
At present, Lightweight Technology mainly has both direction, and one is the optimization design of vehicle structure and material processing technique, two
It is to substitute traditional material using the light material of requirement is met.In recent years, lightweighting materials except Composite Development trend with
Outside, micro-structural trend is have also appeared in the recent period, for the overall performance of product, the basic property of material and structure optimization tool
Play the role of it is same, therefore greatly promoted structure-material simultaneously optimization method development.
Protection and load carrier of the power battery box as electric automobile power battery, are the important composition portions of electric automobile
Point.At present, the energy density of Vehicular dynamic battery group is generally relatively low, and in order to reach the requirement of continual mileage, electric automobile is usually
Need to assemble substantial amounts of electrokinetic cell.And the battery case for being used to load electrokinetic cell widely uses thick and heavy box typed structure, this
Virtually so that the weight increase of electric automobile itself, therefore need badly and the structure of electric automobile battery box is optimized so as to changing
It is apt to the static and dynamic performance of battery case and realizes lightweight.
The content of the invention
The utility model provides a kind of lightweight battery case based on lattice structure, is ensureing battery case various aspects of performance
On the premise of unaffected, the lightweight of battery box body is realized.
The technical solution of the utility model is：A kind of lightweight battery case based on lattice structure, including casing and case lid,
It is characterized in that：Arch anticollision pilot beam is equipped with the two sides of the casing, the both sides of the casing, which are placed, is equipped with half
Suspension type connecting plate, the bottom of the casing, which is provided with radiator, the case lid back side, the bottom of casing and inwall, to be equipped with very
Cavity soaking plate, is provided with sealing joint strip, the case lid and casing are connected by safety fastener between the case lid and casing；The case
Body is made up of inside of the composite plate of lattice structure.
Further to above-mentioned technical proposal to limit, two long sides of casing, which are placed, is respectively equipped with two safety fasteners.Advantage：
Four safety fasteners can further improve connective stability.
It is further to above-mentioned technical proposal to limit, two arch anticollision bufferings are respectively equipped with the two sides of the casing
Beam, arch anticollision pilot beam is bolted on casing.Advantage：1. two arch anticollision pilot beams are used in combination
Anticollision buffering effect can further be improved；2. arch anticollision pilot beam is bolted on battery box body, work as vehicle
During generation low speed side collision, arch anticollision pilot beam is deformed absorbing energy first, reduces impact force, protects and prevent
The deformation of battery case, it is only necessary to the arch anticollision pilot beam of deformation failure is unloaded and more renewed, it is not necessary to change whole electricity
Pond case.
Further to above-mentioned technical proposal to limit, the half suspension type connecting plate that the casing both sides are placed has eight,
The overhanging end of half suspension type connecting plate is connected provided with connecting hole, its inner by bolt assembly with casing.Advantage：1. by
Under dynamic excitation, half suspension type connecting plate can prevent that battery case vibration is excessive, so as to reduce and control the biography that Battery case vibrates
Pass.
Further to above-mentioned technical proposal to limit, the composite plate of the lattice structure is by outer panels, wainscot, dot matrix knot
Structure fuse is constituted；The structure of lattice structure fuse is：Include the support tube column of multiple rectangular arrays distribution, support tube column with it is outer
Panel and wainscot are vertical setting, and are connected between support tube column by horizontal lacing wire, the two ends point of each support tube column
It is not Nian Jie with outer panels, wainscot；The outer panels and wainscot are made by carbon fibre material, support tube column and X are laterally drawn
Muscle is made up of low-carbon steel material.Advantage：1. realized by the support tube column parallel to casing loading direction under minimum material consumption
Maximum load-carrying capacity, and by with loading direction at an angle X-type horizontal lacing wire come realize the stability of support tube column with
And transmission of the load between each support tube column；Such structure realizes the reasonable decomposition of load, it is achieved thereby that minimum
The material consumption of change；2. the quality of carbon fibre material is lighter than metallic aluminium, intensity is higher than steel, and with corrosion-resistant, high-modulus
Characteristic；The intensity and hardness of mild steel are relatively low, and plasticity and toughness are preferable；Both are used in combination, and improve battery case
Bearing capacity and Impact Resisting Capability, alleviate battery case quality, both ensured the safety of structure of battery case, also achieved battery case
Lightweight.
Beneficial effect：The utility model realizes the perfect adaptation by traditional material and mechanics bearing structure, dot matrix knot
Suitable material can be applied on correct position by structure, formed microcosmic space truss unit and gone to ensure overall performance, than passing
The use material mode of system high-performance composite materials is more economical, is meeting the basic collision safety of battery case, ventilation and heat, is insulating and prevent
On the premise of the performance requirements such as water, the Board material for box with lattice structure realizes the reasonable decomposition of load, realizes minimum
Material consumption, so as to reach reduction energy consumption, cost-effective, reached light-weighted basic demand.
Brief description of the drawings
Fig. 1 is the primary structure schematic diagram of the utility model battery case.
Fig. 2 is the front view of the utility model battery case.
Fig. 3 is the top view of the utility model battery box body.
Fig. 4 is micro-structural schematic diagram 1 between the utility model battery box body.
Fig. 5 is micro-structural schematic diagram 2 between the utility model battery box body.
Fig. 6 is dot matrix bar structural representation of the present utility model.
Fig. 7 is use state figure of the present utility model.
Shown in figure：1. casing, 2. case lids, 3. anticollision pilot beams, 4. half suspension type connecting plates, 5. soaking plates, 6. radiatings
Device, 7. sealing joint strips, 8. safety fasteners.
Embodiment
Embodiment of the present utility model is described further with reference to this example figure, so that this practicality is new
Type technical scheme should be readily appreciated that and grasp.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of lightweight battery case based on lattice structure, including casing 1 and case lid 2, case
Two arch anticollision pilot beams 3 in parallel are equipped with the rear and front end face of body 1, what arch anticollision pilot beam 3 was bolted
Mode is fixed on casing 1；The each side of multiple half suspension type connecting plates 4, i.e. casing 1 is equipped with the left and right sides of casing 1
Four angles at have one and half suspension type connecting plates；The overhanging end of half suspension type connecting plate is logical provided with connecting hole, its inner
Bolt assembly is crossed to be connected with casing；Radiator 5 is bonded on the bottom surface of the bottom plate of casing 1, and radiator 5 is by multiple perpendicular to casing bottom
Fin on plate is constituted, and is set in distance between fin；On the back side of case lid 2, the bottom of the inner chamber of casing 1 and inwall
Vapor chamber 6 provided with bonding, the distribution of the rectangular array of vapor chamber 6；The back side of case lid 2 is recessed provided with annular
Sealing joint strip 7 is provided with groove, groove, groove is used to play the role of positioning to sealing joint strip 7, and the gap between case lid 2 and casing 1 leads to
Cross sealing joint strip 7 to eliminate, case lid 2 and casing 1 are connected by safety fastener 8；As shown in Figure 4 and Figure 5, the casing 1 is by inside
The composite plate of lattice structure is made, and the composite plate of lattice structure is by outer panels 101, wainscot 102,103 groups of lattice structure fuse
Into；The structure of lattice structure fuse 103 is：The support tube column 1031 being distributed including multiple rectangular arrays, support tube column 1031
It is vertical setting with outer panels and wainscot, support tube column 1031 is connected by horizontal lacing wire 1032 each other, each support
The two ends of tubing string 1031 are Nian Jie with outer panels, wainscot respectively；The outer panels and wainscot are made by carbon fibre material, propped up
Stay tube post and the horizontal lacing wires of X are made up of low-carbon steel material.
As shown in Figure 4 and Figure 5, the compound board manufacturing method of lattice structure, is comprised the following steps that：A. as shown in fig. 6, with
The support tube column of lattice structure fuse side is as datum mark, and vertical or horizontal along datum mark resolves into lattice structure fuse
Multiple dot matrix bars；B. casting mould is made according to the dimensional parameters of dot matrix bar, the temperature control of liquid low-carbon steel material is being closed
Ensure the mobility of liquid metal in the range of reason, to prevent the dot matrix bar inside configuration of shaping from bubble occur, needed before casting pair
The die cavity of mould carries out application of vacuum, and being conducted oneself with dignity by the way of gravitational casting using liquid metal carries out filling out for casting guarantee material
Rate is filled, liquid low-carbon steel material is injected in mold cavity, become and dies cavity shape and structure identical point through cooled and solidified
Battle array bar structure；C. by the way of welding fabrication：Lattice structure fuse is welded into by the horizontal lacing wires of X between dot matrix bar；
I.e. each point array element is made up of the support tube column and the horizontal lacing wires of four X-types of four rectangular arrays, and four support tube columns are each other
Between pass through the horizontal lacing wire of X-type and connect；D. bonding technique is used：By the two ends of each support tube column respectively with wainscot, outside
Plate is bonded, so that the composite plate of lattice structure is made.The battenboard of lattice structure has optimal bearing structure：By parallel to case
The support tube column of body loading direction realizes the maximum load-carrying capacity under minimum material consumption, and by being in certain angle with loading direction
The horizontal lacing wire of X-type is spent to realize the transmission of the stability and load of support tube column between each support tube column；It is such
Structure realizes the reasonable decomposition of load, it is achieved thereby that the material consumption minimized.
As shown in figure 1, the arch anticollision pilot beam be in order to allow impact force can uniformly along battery case gusset and
Transmit, scattered impact force as much as possible, rather than transmitted only along battery case gusset between floor, it is to avoid because of local stress
It is excessive to cause battery case to destroy.When occurring side collision, impact force can be first delivered on arch anticollision pilot beam, prevent arch
Pilot beam deformation is hit, so as to absorb local collision energy, impact force is reduced, it is by arch anticollision pilot beam that impact force is uniform
It is assigned on the horizontal and vertical floor of battery case, the impact force that the structure transmission for making intensity, rigidity and stability good reduces is kept away
Exempt from unbalance stress and caused the problem of battery case breaks ring, improve the security of cell electrical.
As shown in Figure 1, Figure 2, Figure 3 shows, the half suspension type connecting plate refer to the overhanging end of connecting plate be connected with vehicle frame after shape
Into cantilever；Case-side, which is placed, has eight and half suspension type connecting plates, above four and half suspension type connecting plates be used for constrain battery case
The vibration of the free degree and buffering battery case vertical direction of horizontal direction, the suspension type connecting plate of following four half is used to constrain battery
The vibration of the free degree and buffering battery case of case vertical direction laterally.This arrange not only makes the fixation of battery case more firm
Reduce the vibration of battery case.
The inner chamber of the casing can accommodate a large size battery, and the small size electricity of receiving four can also be divided into by dividing plate
The chamber in pond.
The bolt assembly is made up of bolt, nut, back tightening nut or pad or expansion sleeve；The safety fastener and vacuum chamber
Soaking plate is prior art, and its structure is not described in detail；Vapor chamber is that an inwall has the true of fine structure
Cavity body, is generally made of copper.
Application method：As shown in fig. 7, first by casing assembling on vehicle frame, i.e., casing is connected by half suspension type thereon
Plate, bolt and vehicle frame are connected；Battery is put into casing again, case lid is covered, case lid and casing are connected by safety fastener, is realized
Purpose of the cell sealing in casing.
Do not elaborate part, the technology being known in the art in this specification.Above is to tool of the present utility model
Body is implemented to be described in detail, and the utility model can also have other embodiment.Without prejudice to before the utility model spirit
The technical scheme of the equivalent substitution made or equivalence changes is put, the utility model scope claimed is all contained in
It is interior.
Claims (5)
1. a kind of lightweight battery case based on lattice structure, including casing and case lid, it is characterised in that：The both sides of the casing
Arch anticollision pilot beam is equipped with face, the both sides of the casing, which are placed, is equipped with half suspension type connecting plate, the bottom of the casing
Portion is provided with radiator, the case lid back side, the bottom of casing and inwall and is equipped with vapor chamber, the case lid and casing
Between be provided with sealing joint strip, the case lid and casing are connected by safety fastener；The casing is by internal for the compound of lattice structure
Plate is made.
2. a kind of lightweight battery case based on lattice structure according to claim 1, it is characterised in that：Two long sides of casing
Two safety fasteners are respectively equipped with gusset.
3. a kind of lightweight battery case based on lattice structure according to claim 1 or claim 2, it is characterised in that：The casing
Two sides on be respectively equipped with two arch anticollision pilot beams, arch anticollision pilot beam is bolted on casing.
4. a kind of lightweight battery case based on lattice structure according to claim 3, it is characterised in that：The casing both sides
The half suspension type connecting plate placed has eight, and the overhanging end of half suspension type connecting plate passes through spiral shell provided with connecting hole, its inner
Bolt assembly is connected with casing.
5. a kind of lightweight battery case based on lattice structure according to claim 1 or 2 or 4, it is characterised in that：The point
The composite plate of battle array structure is made up of outer panels, wainscot, lattice structure fuse；The structure of lattice structure fuse is：Including multiple
The support tube column of rectangular array distribution, support tube column is vertical setting with outer panels and wainscot, between support tube column
Connected by horizontal lacing wire, the two ends of each support tube column are Nian Jie with outer panels, wainscot respectively；The outer panels and wainscot
It is made by carbon fibre material, support tube column and the horizontal lacing wires of X are made up of low-carbon steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720085257.0U CN206412396U (en) | 2017-01-23 | 2017-01-23 | A kind of lightweight battery case based on lattice structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720085257.0U CN206412396U (en) | 2017-01-23 | 2017-01-23 | A kind of lightweight battery case based on lattice structure |
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| Publication Number | Publication Date |
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| CN206412396U true CN206412396U (en) | 2017-08-15 |
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| CN201720085257.0U Active CN206412396U (en) | 2017-01-23 | 2017-01-23 | A kind of lightweight battery case based on lattice structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784490A (en) * | 2017-01-23 | 2017-05-31 | 湖北汽车工业学院 | A kind of lightweight battery case based on lattice structure |
| CN107933005A (en) * | 2017-11-16 | 2018-04-20 | 北京航空航天大学 | A kind of composite material battery case with surge guard and preparation process |
| CN110676410A (en) * | 2019-10-12 | 2020-01-10 | 北京理工大学 | A lightweight multifunctional structure for laminate polymer battery module |
| CN110676398A (en) * | 2019-10-12 | 2020-01-10 | 北京理工大学 | Battery case based on lattice structure |
| WO2021248986A1 (en) * | 2020-06-09 | 2021-12-16 | 比亚迪股份有限公司 | Battery pack and vehicle |
-
2017
- 2017-01-23 CN CN201720085257.0U patent/CN206412396U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784490A (en) * | 2017-01-23 | 2017-05-31 | 湖北汽车工业学院 | A kind of lightweight battery case based on lattice structure |
| CN106784490B (en) * | 2017-01-23 | 2023-04-07 | 湖北汽车工业学院 | Lightweight battery box based on lattice structure |
| CN107933005A (en) * | 2017-11-16 | 2018-04-20 | 北京航空航天大学 | A kind of composite material battery case with surge guard and preparation process |
| CN110676410A (en) * | 2019-10-12 | 2020-01-10 | 北京理工大学 | A lightweight multifunctional structure for laminate polymer battery module |
| CN110676398A (en) * | 2019-10-12 | 2020-01-10 | 北京理工大学 | Battery case based on lattice structure |
| WO2021248986A1 (en) * | 2020-06-09 | 2021-12-16 | 比亚迪股份有限公司 | Battery pack and vehicle |
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