CN104659289B - A kind of torus power battery pack - Google Patents
A kind of torus power battery pack Download PDFInfo
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- CN104659289B CN104659289B CN201310594182.5A CN201310594182A CN104659289B CN 104659289 B CN104659289 B CN 104659289B CN 201310594182 A CN201310594182 A CN 201310594182A CN 104659289 B CN104659289 B CN 104659289B
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 38
- 238000002955 isolation Methods 0.000 claims abstract description 35
- 230000002787 reinforcement Effects 0.000 claims description 60
- 238000009413 insulation Methods 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 19
- 239000000178 monomer Substances 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 12
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 5
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229910001416 lithium ion Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 230000037237 body shape Effects 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims 2
- 239000010425 asbestos Substances 0.000 claims 1
- 239000000084 colloidal system Substances 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 claims 1
- 239000012212 insulator Substances 0.000 claims 1
- 239000012188 paraffin wax Substances 0.000 claims 1
- 229910052895 riebeckite Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 13
- 238000010276 construction Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention provides a kind of power battery pack, including battery case, battery module and isolation reinforcing plate；Battery case is hollow ring shape, main shaft centripetal arrangement of the battery module around torus shape battery case.Wherein, the battery case of annulus shape is curve form with the contact surface in the external world, can reduce the impact failure risk of extraneous stress to a great extent；The centripetal arrangement mode of battery module can effectively reduce the risk that the electrode surface of battery module is stressed directly, and improve the application security of set of cells.
Description
Technical field
The present invention relates to dynamical lithium-ion battery packs and its application, more particularly to one kind can provide energy for electric automobile
The power battery pack of amount.
Background technology
Electric automobile represents the important development of future automobile as a kind of cleaning, the efficient and continuable vehicles
Direction.In electric automobile, core is exactly the power battery pack for providing power resources for vehicle the most.Lithium ion battery due to
Its energy density and power density height become the first-selected power supply of electric vehicle.At present, the shape regardless of electrokinetic cell monomer
(for example：Square or cylindrical), by the set of cells after battery cell connection in series-parallel generally individually in rectangular shape, such as Chinese patent CN
A kind of electrokinetic cell of 101719567 A inventions, the mutual stacked arrangement of multiple square power battery single phases become cuboid power
The main body of set of cells；Or, a kind of power battery pack arrangement of 102208573 A of China Patent No. CN inventions assembles knot
Structure, the power battery pack of multiple cylindrical power battery monomers arrangement form rectangular-shape by the way of staggeredly complementation.
The face that the power battery pack of rectangular shape is contacted with the external world is substantially plane, there is right angle in construction profile
Clevis angle, this structure are easily destroyed deformation after being subject to external force collision；In addition, when set of cells is subject to external force intense impact, electricity
The stacking parallel arrangement mode of pond monomer also easily allows multiple battery cells to be impacted in the same direction, causes between battery cell mutually
Extruding, increased the accident risk of set of cells.
Content of the invention
For solving the above problems, it is hollow ring shape and the centripetal row of battery module that the present invention provides a kind of battery case
The power battery pack of row, this special torus structure design and centripetal arrangement mode can effectively reduce extraneous stress to power
The impact failure of set of cells, improves the application security of power battery pack.
The present invention is employed the following technical solutions：
The present invention relates to a kind of torus power battery pack.Solid definition on, torus can be regarded as by circle P around
Main shaft Z rotates a circle and obtains, as shown in Figure 1.Wherein, circle P is referred to as toric roundlet, and the movement locus circle Q in the circle P centers of circle is referred to as
The radius of toric great circle, roundlet and great circle is respectively r (secondary radius) and R (major radiuses), and R>R ＞ 0.
In the present invention, we further define：On circle P, apart from main shaft Z, the movement locus circle M of any is referred to as annulus recently
The internal ring circle of body, is referred to as toric outer shroud circle apart from the farthest movement locus circle N of any of main shaft Z on circle P, and the center of circle of circle Q is
Axle center O for main shaft Z；It is toric internal diameter d=2 × (R-r) to define internal ring diameter of a circle, defines outer shroud diameter of a circle for circle
Outer diameter D=2 of ring body × (R+r), defines a diameter of toric height H=2 × r of roundlet P.
The present invention provides a kind of power battery pack, and particularly, power battery pack of the present invention is in torus shape, wherein torus
Internal diameter d be 10～80cm, preferably 30～60cm, outer diameter D be 60～200cm, preferably 100～150cm, height H be 30～
80cm, preferably 35～55cm.The power battery pack includes：Battery case, battery module and isolation reinforcing plate, wherein several batteries
Module is located in battery case, is provided with an isolation reinforcing plate between two neighboring battery module, it is characterised in that：
The battery case is in hollow ring shape, including upper box, lower box, outer shroud reinforcement and internal ring reinforcement；
Wherein, outer shroud reinforcement is located at the outer shroud circle position of torus shape battery case, and internal ring reinforcement is located at torus shape battery case
Internal ring justifies position, and upper box and lower box are bolted to connection on outer shroud reinforcement and internal ring reinforcement, and composition has
The battery box structure of hollow ring shape；The upper box, lower box material are high strength alumin ium alloy, high-strength steel alloy or high-strength
One or more in polymeric material, wall thickness are 0.5～5mm；The outer shroud reinforcement and internal ring reinforcement material are high-strength
One kind in steel alloy, high-strength nickel alloy or high-strength titanium alloy material；
Main shaft centripetal arrangement of several battery modules described around torus shape battery case；Battery module includes circle
Battery cell and the insulation sleeve for being wrapped in circular batteries monomer edge, the axial direction of battery module and the axial direction of battery cell
Direction is consistent, and the circular surface perpendicular to the battery cell, the axial direction of the battery module and torus battery case
Major axes orientation vertical.
According to the present invention, the upper box and lower box of above-mentioned torus battery case are in the semi-circular ring shape of hollow-core construction,
Edge has flange, upper box and lower box to combine composition hollow-core construction annulus housing；Outside above-mentioned torus battery case
Ring reinforcement and internal ring reinforcement are annular shape, and the outer shroud circle and internal ring for being located at the hollow-core construction annulus housing respectively justifies position
Put.The radial direction of the inner side and outer side of outer shroud reinforcement and internal ring reinforcement is provided with horizontal ledge, and upper and lower casing passes through
Its flange is separately fixed on the outside boss of inner side boss and internal ring reinforcement of outer shroud reinforcement, is formed and there is hollow-core construction
Torus shape battery case.The upper and lower casing is included with the connected mode of outer shroud reinforcement and internal ring reinforcement：Clamping, super
Sound wave welding, sweat soldering or bolt seal circle etc..Further, the outside boss of battery case outer shroud reinforcement and internal ring are strengthened
The frame for movement that the inner side boss of muscle places power battery pack with electric vehicle respectively is fixedly connected, and is fixedly connected mode using weldering
Connect, the mode such as clamping or bolt connection.The upper box, lower box material are high strength alumin ium alloy, high-strength steel alloy or high-strength
One or more in polymeric material, wall thickness are 0.5～5mm；Outer shroud reinforcement and internal ring reinforcement are high-strength steel alloy, height
One kind in strong nickel alloy or high-strength titanium alloy material.
Further, the upper and lower casing of battery case is provided with wire and passes with through hole, low voltage wiring harness connectivity port and fluid injection
Hole.Wherein, two wires pass the positive and negative electrode for being respectively power battery pack with through hole and draw port, low voltage wiring harness connectivity port
Mouth is electrically connected for power battery pack and battery management system, and liquid injection hole is the port that dielectric is injected into battery case.
Compared with the power battery pack of cubic, T shape, tabular, cylindrical shape or hollow cylinder shape, this
The battery box structure of annulus shape, is curve form with extraneous contact surface, therefore can reduce extraneous answering to a great extent
Power is for the impact failure of power battery pack.
Further, in the battery case of above-mentioned open circles ring body shape, several battery modules are placed with.
The battery module includes the battery cell of circle and is wrapped in the insulation sleeve at battery cell edge.The battery
The diameter of monomer is more than 1 with thickness ratio, and ratio is preferably 5～20, and 8～75cm of cell diameter, preferably 10～50cm, electricity
Pond 0.5～16cm of thickness, preferably 1～8cm.Two circular surfaces of the battery cell be respectively battery positive electrode surface and
Negative terminal surface, and have positive and negative electrode terminal to draw respectively.The axial direction of the battery module and the axial direction one of battery cell
Cause, and the circular surface perpendicular to the battery cell.Further, the battery cell is preferably Chinese patent
201310512781.8 described in high voltage power battery, the electrokinetic cell includes：Battery core, elastomeric pad, battery dimple,
Battery cover, insulation shell and flexible current-collecting line.Wherein, battery core is made up of the superposition of two or more battery units, is preferably folded
Addend amount is 8～160, and each battery unit is superimposed by two circular bipolar electrode pieces up and down and is constituted, and adjacent two
Least one layer of sealing coat is provided between individual bipolar electrode piece, cell internal short circuit is prevented.Battery dimple and battery cover
Supporting composition battery case, the upper and lower surface of battery core are bonded with elastomeric pad respectively, and battery core is placed in battery case with elastomeric pad
Portion, insulation shell will be sealed outside whole battery case, and positive and negative electrode flexible current-collecting line is respectively fixedly connected with the upper and lower table in battery case
Face, and draw through insulation shell, the electrokinetic cell positive and negative electrode terminal of extraction is connected with the external world.
Further, the positive and negative electrode terminal that above-mentioned battery cell is drawn is electric with the positive and negative electrode bus bar in battery case respectively
Connection, positive and negative electrode bus bar are passed by the wire on battery case respectively and are drawn with through hole, form the positive pole of the power battery pack
And negative pole.The positive and negative electrode bus bar is copper cash, nickel plated copper wire or silver-coated copper wire, and insulation characterisitic is good, high temperature resistant.
The cross sectional shape of the insulation sleeve in "U" shaped, wrapped up by insulation sleeve by the edge of circular batteries monomer,
The shape of insulation sleeve liner and battery cell edge form fit, and with battery directly contact, inner lining material is poly- third
One or more in alkene, polyethylene, thermosetting resin or electro-insulating rubber, thickness are 0.5～3mm, the work with damping of insulating
With；The outer liner material of insulation sleeve is high strength alloy steel, and thickness is 1～5mm, for fixing and protecting battery cell.Above-mentioned
Battery module is fixedly connected on the outside of the inner side boss and internal ring reinforcement of outer shroud reinforcement by insulation sleeve mechanical interlocking
On boss, also, between battery module and outer shroud reinforcement and internal ring reinforcement, it is provided with damping pad.Outer shroud reinforcement and internal ring
Reinforcement has certain protective action to battery module, meanwhile, the separate fixation of each battery module will not be because of certain electricity
There is the state for loosening, coming off and affect other battery modules in pond module.
Further, main shaft centripetal arrangement of the battery module around torus battery case, and the axial direction of battery module
Direction is vertical with the major axes orientation of torus battery case.The centripetal arrangement mode of battery module can effectively reduce battery module
The risk that circular electrode surface is stressed directly, and there is no square angle in this arrangement mode, make battery module stress equal
Even, improve the safety of battery module.
In torus battery case, be provided between two neighboring battery module one isolation reinforcing plate, isolation reinforcing plate with
Battery module is together around the centripetal arrangement of main shaft of torus shape battery case；The isolation rounded body of reinforcing plate, thickness is 2～
10mm, diameter are consistent with the diameter of battery module, around the centripetal arrangement of the main shaft of torus battery case, circular isolation reinforcing plate
Axial direction is vertical with the major axes orientation of torus battery case；In isolation reinforcing plate, diametric(al) is provided with web frame, isolates
Reinforcing plate is fixed on the outside boss of inner side boss and internal ring reinforcement of outer shroud reinforcement by web frame.Web frame
Material is the one kind in high-strength steel alloy, high-strength nickel alloy or high-strength titanium alloy material.Meanwhile, stone is filled with isolation reinforcing plate
The light weight insulation high-temperature-resistant material such as cotton, plays a part of heat-insulation and heat-preservation.
Further, each isolation reinforcing plate includes heating module.The heating module is PTC heating element heaters or silica gel
Heating plate etc., heating module are fixed on the surface of isolation reinforcing plate, when battery management system detects certain or multiple batteries
When module temperature is less than standard temperature, control circuit can be passed through battery module is heated, realize each battery in power battery pack
The controllable adjustment of module temperature.
Further, the gap in the battery case is saturated with dielectric, and dielectric is silicone oil, FR3 insulating oils or stone
One or more in wax.When power battery pack causes battery cell damaged because being subjected to sharp impacts, with insulation characterisitic
Liquid battery cell breakage can be covered, be prevented from or slow down battery leakage, burning or blast to a great extent；
And, dielectric thermal conduction characteristic preferably, ensure that the concordance of being heated of battery module.
According to the present invention, (main spindle's of torus battery case are attached for the internal ring circle hollow part of torus power battery pack
Can closely) place the battery management system of the power battery pack, torus power battery pack by low voltage wiring harness connectivity port with
Battery management system is connected.Battery management system is placed on the centre of torus power battery pack, can be prevented effectively from
Battery management system is subject to extraneous mechanical damage, and it is possible to make full use of the space structure of torus power battery pack excellent
Gesture, improves the space availability ratio of battery system on the whole.
The technical advantage of the present invention is embodied in：
1) battery case of annulus shape is curve form with the contact surface in the external world, can reduce the external world to a great extent
The impact failure risk of stress；Also, outer shroud reinforcement and internal ring is provided with the outer shroud circle in battery case and internal ring circle position
Reinforcement, has good protective action to battery case internal battery module；
2) circular batteries module is fixed in the battery case of annulus shape, around the centripetal row of the main shaft of torus battery case
Row, and the axial direction of battery module is vertical with the major axes orientation of torus battery case, this centripetal arrangement mode can be effective
Reduce the risk that the electrode surface of battery module is stressed directly；Also, there is no square angle, battery mould in this arrangement mode
Block uniform force, is effectively improved the application security of battery module；
3) isolation reinforcing plate is provided between adjacent battery modules, and battery module is separated by isolation reinforcing plate, it is ensured that electricity
Pond module independence each other, isolation reinforcing plate are built-in with web frame, and web frame has certain rigidity, in radiation
Shape mechanical fasteners are connected on outer shroud reinforcement and internal ring reinforcement, can be effective against, from extraneous impulsive force, reducing electricity
Pond module is squeezed the risk of destruction, improves the application security of power battery pack.
Description of the drawings
Fig. 1 is torus schematic diagram；
Fig. 2 is the upper and lower body structure schematic diagram of torus battery case, wherein, is (a) upper box structure schematic diagram, (b) is
Lower box structural representation；201 upper boxes；202 lower boxes；
Fig. 3 is torus battery case internal ring reinforcement and outer shroud reinforcement cross section structure schematic diagram, wherein, (a) is outer shroud
Reinforcement cross section structure schematic diagram, (b) is internal ring reinforcement cross section structure schematic diagram；301 outer shroud reinforcements；302 internal ring
Reinforcement；
Fig. 4 be torus shaped cells case assembly structure diagram, 401 battery cases；
Fig. 5 is battery cell structural representation, wherein, 501 battery cells；502 battery cores；503 battery units；
504 positive terminals；505 negative terminals；
Fig. 6 is battery modular structure schematic diagram, wherein, (a) assembles pre-structure schematic diagram for battery module, (b) is battery
Vertical displacement structure schematic diagram after module assembled；601 battery modules；602 insulation sleeves；
Fig. 7 is the vertical displacement structure schematic diagram of isolation reinforcing plate, wherein, 701 isolation reinforcing plates；
Fig. 8 is that battery module and isolation reinforcing plate surround the centripetal arrangement architecture schematic diagram of torus battery case main shaft, wherein,
801 power battery packs；
Fig. 9 is torus power battery pack structural section figure.
Specific embodiment
Below in conjunction with the accompanying drawings, by embodiment, the present invention will be further described.
As shown in Figures 2 to 4, the battery case 401 of annulus shape of the invention mainly includes upper box 201, lower box
202nd, outer shroud reinforcement 301 and internal ring reinforcement 302.Wherein, the semicircular ring of upper box 201 and lower box 202 in hollow-core construction
Shape, its edge have flange；Outer shroud reinforcement 301 and internal ring reinforcement 302 are annular shape, are located at 201 He of upper box respectively
At the outer shroud circle of the hollow-core construction annulus casing that the combination of lower box 202 is constituted and internal ring circle, and in outer shroud reinforcement 301 and internal ring
The radial direction of the inner side and outer side of reinforcement 302 is provided with horizontal ledge.Upper box 201 and lower box 202 are turned over by which
While being separately fixed on the outside boss of inner side boss and internal ring reinforcement 302 of outer shroud reinforcement 301, formed and there is hollow knot
The torus shape battery case 401 of structure.
As shown in Figure 5 and Figure 6, battery module 601 of the invention includes the battery cell 501 of circle and is wrapped in battery list
The insulation sleeve 602 at 501 edge of body.
Wherein, Fig. 5 is a kind of 501 structural representation of high voltage power battery cell according to the present invention.The battery cell
501 is rounded, mainly includes battery core 502, positive terminal 504 and negative terminal 505.Wherein, battery core 502 is by multiple battery units
503 superposition compositions.
Assembly structure diagrams of the Fig. 6 for battery module 601, including battery cell 501 and insulation sleeve 602.Wherein, absolutely
The cross sectional shape of edge cutting ferrule 602 is in "U" shaped, the shape of 602 liner of insulation sleeve and 501 edge profile of battery cell
Match somebody with somebody, and with 501 directly contact of battery cell, inner lining material elects polypropylene as, and thickness is 0.5～3mm, the work with insulation damping
With；The outer liner material of insulation sleeve 602 is high strength alloy steel, and thickness is 1～5mm, for fixing and protecting battery cell
501.The edge parcel of circular batteries monomer 501 is constituted battery module 601 by insulation sleeve 602.
As shown in fig. 7, the 701 rounded body of isolation reinforcing plate of the present invention.Arrange in 701 interior diameter direction of isolation reinforcing plate
There is web frame, isolate inner side boss and internal ring reinforcement that reinforcing plate 701 is fixed on outer shroud reinforcement 301 by web frame
On 302 outside boss.Each isolation reinforcing plate 701 includes heating module, and heating module is silica gel heating plate, can achieve dynamic
The controllable adjustment of 601 temperature of each battery module in power set of cells.
As shown in figure 8, being that battery module and isolation reinforcing plate are shown around the centripetal arrangement architecture of main shaft of torus battery case
It is intended to, battery module 601 and the isolation reinforcing plate 701 between two neighboring battery module 601 are placed in torus shape
In battery case 401, and the centripetal arrangement of main shaft around torus battery case 401.
Battery case of the present invention 401 is in torus shape, is curve form with extraneous contact surface, can drop to a great extent
The impact failure risk of low extraneous stress；The centripetal arrangement mode of battery module 601 can effectively reduce the circle of battery module 601
The risk that shape surface is stressed directly, and there is no square angle in this arrangement mode, make 601 uniform force of battery module,
It is effectively improved the safety of battery module 601.
Embodiment：
In the present invention, torus power battery pack 801 seeks to fill that the power demands of all kinds of different electric vehicles, including electricity
Dynamic car and electric bus etc..According to different vehicles, 601 quantity of battery module of assembling in power battery pack 801.
In the present embodiment, power battery pack provides electrical source of power for pure electronic service on buses or trains car, it is desirable to power battery pack work electricity
Flattening bench is 320V, and capacity is 100Ah.
According to the present invention, the electrokinetic cell monomer that selects in power battery pack is retouched by Chinese patent 201310512781.8
The high voltage power battery that states, in cake shape, in the present embodiment, the rated operational voltage of electrokinetic cell monomer 501 is
320V, capacity are 4.5Ah, a diameter of 40cm of battery cell, and thickness is 5cm.In order to meet the power demand of pure electronic service on buses or trains car,
Power battery pack needs 24 to save, and electrokinetic cell monomer 501 is in parallel to be constituted.
Therefore, in the present embodiment, 24 battery modules 601 are provided with and between two neighboring battery module 601
Isolation reinforcing plate 701 (25 altogether) is placed in battery case 401, and the centripetal uniform row of main shaft around torus battery case 401
Row.
According to solid, the diameter of battery module 601 is bigger, and the height of power battery pack is higher；Battery module 601
Quantity is more, and the internal diameter of power battery pack internal ring circle and outer shroud circle is bigger, and the angle between adjacent battery modules 601 is got over
Little.Due to insulation sleeve 602, isolation reinforcing plate 701 and battery case 401 thickness less, and battery module 601 with isolate add
Certain gap be there is between strong plate 701, calculated for convenience, and make calculation error be reduced to minimum as far as possible, according to this
The size of bright each part, can set 601 a diameter of 42cm of battery module here, and thickness is approximately 7cm.
Therefore, the internal diameter d=53.2cm of torus set of cells 801, outer diameter D=137.2cm, height H=43cm.
Wherein, the approximate calculation method with regard to the internal diameter and external diameter of torus set of cells 801 is：
First, per 601 a diameter of 42cm of batteries module, thickness is approximately 7cm, 24 batteries module, 601 centripetal arrangement,
Formed adjacent battery modules 601 between angle be：
So, according to above-mentioned definition, little radius of circle r=21cm can then calculate big radius of circle：
So, the internal diameter of torus power battery pack in the present embodiment：D=2 × (R-r)=53.2cm；
External diameter is：D=2 × (R+r)=137.2cm；
Battery module 601 and isolation reinforcing plate 701 in power battery pack 801, around torus shaped cells case 401
The centripetal arrangement of main shaft, the angle between adjacent two battery module 601 are 15 °, isolate reinforcing plate 701 and adjacent battery modules 601
Between angle be 7.5 °.
The specific embodiment of the invention is not limited to the present invention.Any those of ordinary skill in the art, without departing from
Under technical solution of the present invention ambit, all technical solution of the present invention is made using the methods and techniques content of the disclosure above
Many possible variations and modification, or the Equivalent embodiments for being revised as equivalent variations.Therefore, every without departing from the technology of the present invention side
The content of case, the technical spirit according to the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification,
Still fall within the range of technical solution of the present invention protection.
Claims (17)
1. a kind of torus power battery pack, the power battery pack include：Battery case, battery module and isolation reinforcing plate, wherein
Several battery modules are located in battery case, are provided with an isolation reinforcing plate between two neighboring battery module, it is characterised in that：
The battery case is in hollow ring shape, including upper box, lower box, outer shroud reinforcement and internal ring reinforcement；Wherein,
Outer shroud reinforcement is located at the outer shroud circle position of torus shape battery case, and internal ring reinforcement is located at the internal ring of torus shape battery case to be justified
Position, upper box and lower box are bolted to connection on outer shroud reinforcement and internal ring reinforcement, constitute and there are open circles
The battery box structure of ring body shape；The upper box, lower box material are high strength alumin ium alloy, high-strength steel alloy or high strength polymer
One or more in material, wall thickness are 0.5～5mm；The outer shroud reinforcement and internal ring reinforcement material be high-strength steel alloy,
One kind in high-strength nickel alloy or high-strength titanium alloy material；
Several battery modules described are placed in above-mentioned battery case, and the centripetal arrangement of main shaft around torus shape battery case；Electricity
Pond module includes the battery cell of circle and is wrapped in the insulation sleeve at battery cell edge, the axial direction of battery module and electricity
The axial direction of pond monomer is consistent, and the circular surface perpendicular to the battery cell, the axial direction of the battery module with
The major axes orientation of torus battery case is vertical.
2. torus power battery pack as claimed in claim 1, it is characterised in that：The torus battery case internal ring circular diameter
D is 10～80cm, and outer shroud circular diameter D is 60～200cm, and height H is 30～80cm.
3. torus power battery pack as claimed in claim 2, it is characterised in that：The torus battery case internal ring circular diameter
D is 30～60cm.
4. torus power battery pack as claimed in claim 2, it is characterised in that：The torus battery case outer shroud circular diameter
D is 100～150cm.
5. torus power battery pack as claimed in claim 2, it is characterised in that：The torus battery case height H is 35
～55cm.
6. torus power battery pack as claimed in claim 1, it is characterised in that：The diameter of the circular batteries monomer and thickness
Degree is than being more than 1, and 8～75cm of cell diameter, 0.5～16cm of cell thickness.
7. torus power battery pack as claimed in claim 6, it is characterised in that：The diameter of the circular batteries monomer and thickness
The ratio of degree ratio is 5～20.
8. torus power battery pack as claimed in claim 6, it is characterised in that：The circular batteries monomer diameter be 10～
50cm.
9. torus power battery pack as claimed in claim 6, it is characterised in that：The circular batteries monomer thickness be 1～
8cm.
10. torus power battery pack as claimed in claim 1, it is characterised in that：The battery cell includes：Battery core, bullet
Property pad, battery dimple, battery cover, insulation shell and flexible current-collecting line, wherein, battery core is by two or more battery units
Superposition composition, each battery unit are superimposed by two circular bipolar electrode pieces up and down and are constituted, and in two adjacent bipolaritys
The nonconducting circular sealing coat of least one layer of electronics, battery dimple and the supporting composition battery of battery cover is provided between electrode slice
Shell, the upper and lower surface of battery core are bonded with elastomeric pad respectively, and insulation shell will be sealed outside whole battery case, the flexible collection of positive and negative electrode
Streamline is respectively fixedly connected with the circular surface in battery case and draws through insulation shell to be easy to and external connection；Fill in battery unit
The electrolyte of liquid or colloid or polymer completely containing lithium ion, bipolar electrode piece lateral periphery are enclosed with O-ring seal,
Battery core and elastomeric pad integral sealing are inside the battery case.
11. torus power battery packs as claimed in claim 10, it is characterised in that：The battery core is by two or more
Battery unit superposition composition, superposition quantity be 8～160.
12. torus power battery packs as claimed in claim 1, it is characterised in that：The battery module passes through insulation sleeve
Battery module is fixedly connected on above-mentioned outer shroud reinforcement and internal ring reinforcement by insulation sleeve mechanical interlocking；The edge insulator
The shape of cross section of set in "U" shaped, wrapped up by insulation sleeve, the shape of insulation sleeve liner by the edge of circular batteries monomer
Shape and battery cell edge form fit, and with battery directly contact, inner lining material is polypropylene, polyethylene, thermosetting
One or more in resin or electro-insulating rubber, thickness are 0.5～3mm；The outer liner material of insulation sleeve is high strength alloy steel,
Thickness is 1～5mm.
13. torus power battery packs as claimed in claim 1, it is characterised in that：Several described isolation reinforcing plates are placed in
In the battery case, and the centripetal arrangement of main shaft around torus shape battery case；The isolation reinforcing plate is circle, and thickness is 2
～10mm, the axial direction of the isolation reinforcing plate are vertical with the major axes orientation of torus battery case.
14. torus power battery packs as claimed in claim 1, it is characterised in that：The isolation reinforcing plate is in diametric(al)
Web frame is provided with, isolation reinforcing plate is fixed on outer shroud reinforcement and internal ring reinforcement by web frame；The reinforcement
Framework material is the one kind in high-strength steel alloy, high-strength nickel alloy or high-strength titanium alloy material；Meanwhile, filling in isolation reinforcing plate
There is light weight insulation high-temperature-resistant material.
15. torus power battery packs as claimed in claim 14, it is characterised in that：The light weight insulation high-temperature-resistant material is
Asbestos.
16. torus power battery packs as claimed in claim 1, it is characterised in that：The isolation reinforcing plate includes heating
Module, heating module are PTC heating element heaters or silica gel heating plate, are fixed on the surface of isolation reinforcing plate.
17. torus power battery packs as claimed in claim 1, it is characterised in that：Soak gap in the battery case
Full dielectric, the dielectric are one or more in silicone oil, FR3 insulating oils or paraffin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310594182.5A CN104659289B (en) | 2013-11-22 | 2013-11-22 | A kind of torus power battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310594182.5A CN104659289B (en) | 2013-11-22 | 2013-11-22 | A kind of torus power battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104659289A CN104659289A (en) | 2015-05-27 |
| CN104659289B true CN104659289B (en) | 2017-03-15 |
Family
ID=53250182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310594182.5A Active CN104659289B (en) | 2013-11-22 | 2013-11-22 | A kind of torus power battery pack |
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| Country | Link |
|---|---|
| CN (1) | CN104659289B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539297B (en) * | 2018-03-27 | 2024-02-02 | 芮正美 | Multifunctional novel primary battery and installation method thereof |
| CN115084771B (en) * | 2022-08-03 | 2023-07-14 | 厦门理工学院 | High-performance battery box protection structure and automobile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4044192A (en) * | 1970-07-10 | 1977-08-23 | Catalyst Research Corporation | Thermal batteries |
| CN101286572A (en) * | 2007-04-12 | 2008-10-15 | 日立麦克赛尔株式会社 | Nummular non-aqueous electrolyte secondary battery |
| CN201918433U (en) * | 2010-03-25 | 2011-08-03 | 江西凯源科技有限公司 | Ring-shaped battery |
| CN202259548U (en) * | 2011-10-19 | 2012-05-30 | 中国电子科技集团公司第十八研究所 | High-power combined thermal battery assembly rack |
-
2013
- 2013-11-22 CN CN201310594182.5A patent/CN104659289B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4044192A (en) * | 1970-07-10 | 1977-08-23 | Catalyst Research Corporation | Thermal batteries |
| CN101286572A (en) * | 2007-04-12 | 2008-10-15 | 日立麦克赛尔株式会社 | Nummular non-aqueous electrolyte secondary battery |
| CN201918433U (en) * | 2010-03-25 | 2011-08-03 | 江西凯源科技有限公司 | Ring-shaped battery |
| CN202259548U (en) * | 2011-10-19 | 2012-05-30 | 中国电子科技集团公司第十八研究所 | High-power combined thermal battery assembly rack |
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| Publication number | Publication date |
|---|---|
| CN104659289A (en) | 2015-05-27 |
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Address after: No. 1, 1st Floor, Building 4, No. 10, South 3rd Road, Shodu, Wuhou District, Chengdu City, Sichuan Province, 610043 Patentee after: Haofengguang Energy storage (Chengdu) Co.,Ltd. Address before: 100085 1711, 17th floor, building 5, courtyard 1, Shangdi 10th Street, Haidian District, Beijing Patentee before: Beijing Hawaga Power Storage Technology Co.,Ltd. |
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