CN104538567A - Battery pack with high protection level and method for raising protection level of battery pack - Google Patents
Battery pack with high protection level and method for raising protection level of battery pack Download PDFInfo
- Publication number
- CN104538567A CN104538567A CN201410640827.9A CN201410640827A CN104538567A CN 104538567 A CN104538567 A CN 104538567A CN 201410640827 A CN201410640827 A CN 201410640827A CN 104538567 A CN104538567 A CN 104538567A
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- CN
- China
- Prior art keywords
- power brick
- protection level
- battery module
- casing
- connector
- 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.)
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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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/571—Methods or arrangements for affording protection against corrosion; Selection of materials therefor
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
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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
-
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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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 invention provides a battery pack with a high protection level and a method for raising the protection level of the battery pack. The battery pack with the high protection level and a battery module are filled with organic silica gel, and a waterproof connector is adopted, so that the protection level of the battery pack is raised, and the battery pack can run normally in an outdoor environment.
Description
Technical field
The present invention relates to technical field of lithium ion, particularly relate to a kind of method of high-protection level power brick and raising power brick degree of protection.
Background technology
Along with being rooted in the hearts of the people of environmental protection concept, pure electric automobile also will become the development trend in automobile industry future as a kind of environmental protection automobile truly.For a long time, it is high that the development of electric automobile is limited to battery cost always, life-span these two technical bottlenecks short.Along with innovation and the improvement of technology in recent years, battery technology obtains develop rapidly.Electrokinetic cell also develops into the advanced green power battery such as Ni-MH battery of today, cobalt acid lithium, LiMn2O4, LiFePO4 from traditional lead accumulator gradually.But although these new type power lithium batteries obtain very big raising in performance, the raising in these performances is often for battery core.On electric automobile, electrokinetic cell needs with the form work of stack battery, and the advantage of existing stack battery Novel electric core in actual use is often had a greatly reduced quality.The cycle life of such as lithium cell is 1500 times, is equivalent to battery core complete discharge and recharge every day, can reaches the useful life of about 3-5 in the ideal situation, be close with the useful life of automobile.But by finding the test of stack battery in the use of actual electrical motor-car, the service life cycle of stack battery often falls sharply even lower to half when using as monomer.
In addition, the degree of protection of power brick affects the important factor of of power brick performance.The most degree of protection of existing power brick can only reach IP45, and because the power brick in electric automobile needs to work out of doors, after Long-Time Service, power brick often easily covers dirt.And when running into extreme weather, existing power brick is often easily made moist, thus affects the performance of power brick.
Therefore, be necessary to develop a kind of high-protection level power brick, there is higher dust-proof, water resistance, to ensure that power brick is normally run under environment out of doors.
Summary of the invention
The object of the present invention is to provide a kind of high-protection level power brick, power brick is inner and battery module is inner is all filled by organic silica gel, and connector adopts waterproofing design, has higher degree of protection.
Another object of the present invention is to provide a kind of method improving power brick degree of protection, filled by organic silica gel described power brick is inner and battery module is inner, waterproofing design is adopted to connector, improve the degree of protection of power brick, to ensure that power brick is normally run under environment out of doors.
For achieving the above object, the invention provides a kind of high-protection level power brick, comprise: power brick casing, the power brick base plate, the several battery module being located at described power brick box house that are oppositely arranged with described power brick casing and be located at described power brick body side and the connector be connected with described battery module, described power brick is inner and battery module is inner is all filled by organic silica gel, and described connector adopts waterproofing design.
The material of described power brick casing is the magnadure composite material that carbon fiber-reinforced unsaturated-resin and glass fiber compound material cover.
The material of described power brick base plate is carbon fiber-reinforced titanium bag aluminum-magnesium alloy composite materials.
Described battery module is divided into ordered series of numbers and is located at described power brick box house.
The side of described power brick casing is provided with a hollow-out parts, and described connector is connected with described battery module, and it is outside to extend to power brick casing through described hollow-out parts.
The present invention also provides a kind of method improving power brick degree of protection, is filled, adopt waterproofing design to connector to described power brick is inner and battery module is inner by organic silica gel.
Beneficial effect of the present invention: a kind of high-protection level power brick of the present invention, power brick is inner and battery module is inner is all filled by organic silica gel, and connector adopts waterproofing design, has higher degree of protection.The method of raising power brick degree of protection of the present invention, is filled by organic silica gel described power brick is inner and battery module is inner, adopts waterproofing design to connector, improve the degree of protection of power brick, to ensure that power brick is normally run under environment out of doors, simple to operate, cost is low.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, by the specific embodiment of the present invention describe in detail, will make technical scheme of the present invention and other beneficial effect apparent.
In accompanying drawing,
Fig. 1 is the structural representation of high-protection level power brick of the present invention;
Fig. 2 is the structural representation of the battery module of high-protection level power brick of the present invention;
Fig. 3 is the structural representation of the power brick base plate of high-protection level power brick of the present invention;
Fig. 4 is the structural representation of the power brick casing of high-protection level power brick of the present invention.
Embodiment
For further setting forth the technological means extremely effect that the present invention takes, below in conjunction with the preferred embodiments of the present invention extremely accompanying drawing be described in detail.
Refer to Fig. 1, the invention provides a kind of high-protection level power brick, comprise: power brick casing 1, the power brick base plate 2, the several battery modules 3 being located at described power brick casing 1 inside that are oppositely arranged with described power brick casing 1 and be located at described power brick casing 1 side and the connector 4 be connected with described battery module 3, inner and battery module 3 inside of described power brick is all filled by organic silica gel 7.
Please refer to Fig. 1-4; described power brick casing 1 is in housing shape; described power brick casing 1 inside is provided with placement section 11; for holding the battery module 3 of power brick; can by encapsulating to the mode of power brick casing 1 inside perfusion organic silica gel 7; make silica filled organopolysiloxane glue 7 between battery module 3, organic silica gel 7 can carry out shock-absorbing protecting, to alleviate the impact on internal battery module 3 when power brick casing 1 is hit after solidifying.The marginal position of described power brick casing 1 bottom surface is provided with several equally distributed lug boss 12, in order to ensure that power brick casing 1 is placed steadily in electric automobile.
Described power brick casing 1 side is provided with a hollow-out parts 13, for making the connector 4 being connected to battery module 3 pass, and extends to power brick outside.Described power brick casing 1 surrounding inwall is provided with several equally distributed connecting portion 14; described several connecting portion 14 is respectively equipped with screwed hole 15; on described power brick base plate 2, the position of corresponding described connecting portion 14 is respectively equipped with several through hole 24; use screw to be fixed together with power brick base plate 2 by described power brick casing 1, thus realize the protection to battery module 3.
The material of described power brick casing 1 is the magnadure composite material that carbon fiber-reinforced unsaturated-resin and glass fibre cover, for power brick casing 1 provides enough intensity and superpower corrosion resistance, the distortion avoiding causing in Long-Time Service process, break and corrode.
The material of described power brick base plate 2 is carbon fiber-reinforced titanium bag aluminum-magnesium alloy composite materials, has good thermal conductivity, can be derived from power brick inside by heat in time.
Please refer to Fig. 1-2, described battery module 3 is divided into ordered series of numbers and is located at described power brick casing 1 inside, silica filled organopolysiloxane glue 7 between described several battery module 3.In the preferred embodiment, the quantity of described battery module 3 is 22, is divided into 4 row and is located at described power brick casing 1 inside.Particularly, as shown in Figure 1, near power brick casing 1 wherein side two row 6 battery modules 3 are set respectively, near power brick casing 1 opposite side two row 5 battery modules 3 are set respectively.
Connector 4 in Fig. 1 is electric connector, can select according to the size of the operating current of power brick to its model.It is connected with battery module 3 by soft copper board or flexible cable 41.This connector 4 adopts waterproofing design and can realize quick grafting and replacing.Preferably, the IP grade of this connector 4 is 67.
Refer to Fig. 2, described battery module 3 comprises battery module enclosure 30, it is inner and to be provided with on the support portion 31 of 24 holding parts 311,24 battery cores 32 being located at described 24 holding part 311 inside respectively, the heat-conducting part 33 being coated on periphery, described support portion 31 and the end face being located at described support portion 31 and the copper bar 34 be connected with described 24 battery cores 32, the inside silica filled organopolysiloxane glue 7 of described battery module 3 to be located at described battery module enclosure 30.
Particularly, the outside of described 24 battery cores 32 is respectively equipped with aluminium shell 320, the positive pole of part battery core is provided with positive pole hush panel 321, the negative pole of another part battery core is provided with negative pole hush panel 322, the battery core being provided with positive pole hush panel 321 and the battery core being provided with negative pole hush panel 322 are arranged at interval in holding part 311, and towards unanimously, the positive pole hush panel 321 of described several battery core 32 and negative pole hush panel 322 are connected by described copper bar 34, silica filled organopolysiloxane glue 7 in the aluminium shell 320 of described battery core 32.
Further, 24 holding part 311 point three layers of distributions in support portion 31,8 every layer.24 battery core 32 correspondences are located in these 24 holding parts 311.Preferably, described battery core 32 is Boston battery Swing 5300 of 5.3Ah.Preferably, the material of described support portion 31 is plastics, and the material of described heat-conducting part 33 is aluminium.The heat of battery module 3 can be derived by heat-conducting part 33, prevents it overheated.Described 24 battery cores 32 are composed in series battery module 3 by copper bar 34, and described 22 battery modules 3 compose in parallel power brick by soft copper row (not shown).
The two ends of described battery module 3 are respectively equipped with a lug boss 35 and depressed part 36, and the shape of battery module enclosure 30 adapts with it.Battery module 3 is between the column and the column end to end, is fixed by the mutually embedding realization between lug boss 35 with depressed part 36, is filled between described 22 battery modules 3 by organic silica gel 7, and preferably, the thickness of described organic silica gel 7 is 3mm.
Because organic silica gel 7 has stronger hydrophobicity; therefore in power brick, silica filled organopolysiloxane glue 7 can reach the effect of protection internal electronic element from water or moisture attacks; and in conjunction with waterproof connector 4; the water proof and dust proof performance of effective raising power brick, can be promoted to IP67 by the degree of protection of power brick by existing IP45.
In addition, can decompose when organic silica gel 7 is at 460 DEG C, and produce fire-retardant gas, when power brick is in extreme environment, the heat-resisting quantity of organic silica gel 7 and anti-flammability can delay the time of power brick combustion explosion, thus improve the fail safe of power brick, reduce the loss because power brick combustion explosion causes.Organic silica gel 7 can keep elasticity and mechanical performance for a long time under-50 ~ 220 DEG C of environmental conditions, after solidification, hardness is 45 ~ 50A, by pouring into organic silica gel 7 in the space of battery module 3, change the drawback of rigid contact between battery module 3 in conventional batteries bag, serve the effect of buffering, alleviate the impact of external impact on internal cell and components and parts, improve the anti-seismic performance of power brick.
Meanwhile, it is 1.0W/M.K that organic silica gel 7 solidifies the rear coefficient of heat conduction, is 40 times of air, therefore can ensures the temperature consistency of power brick inside.Organic silica gel 7 has environment compatibility, can not produce poisonous and harmful substance in solidification process, and the product fully after solidification is also nontoxic to people.Organic silica gel 7 also has the molecular structure identical with rocket burn-out proof coating material, possesses stronger corrosion resistance, even if indivedual battery core leakage also can not have an impact to other battery cores.Organic silica gel 7 electrical insulating property that also tool is higher, puncture voltage is 20kV/mm, effectively can carry out insulation protection to power brick.
The present invention also provides a kind of method improving power brick degree of protection, is filled, adopt waterproofing design to connector to described power brick is inner and battery module is inner by organic silica gel.
Preferably, the thickness of described organic silica gel is 3mm.
In sum, a kind of high-protection level power brick of the present invention, power brick is inner and battery module is inner is all filled by organic silica gel, and connector adopts waterproofing design, has higher degree of protection.The method of raising power brick degree of protection of the present invention, is filled by organic silica gel described power brick is inner and battery module is inner, adopts waterproofing design to connector, improve the degree of protection of power brick, to ensure that power brick is normally run under environment out of doors, simple to operate, cost is low.
The above, for the person of ordinary skill of the art, can make other various corresponding change and distortion according to technical scheme of the present invention and technical conceive, and all these change and be out of shape the protection range that all should belong to the claims in the present invention.
Claims (6)
1. a high-protection level power brick, comprise: power brick casing (1), the power brick base plate (2) be oppositely arranged with described power brick casing (1), be located at the inner several battery modules (3) of described power brick casing (1) and be located at described power brick casing (1) side and the connector (4) be connected with described battery module (3), it is characterized in that, described power brick inside and battery module (3) inside are all filled by organic silica gel (7), and described connector (4) adopts waterproofing design.
2. high-protection level power brick as claimed in claim 1, it is characterized in that, the material of described power brick casing (1) is the magnadure composite material that carbon fiber-reinforced unsaturated-resin and glass fibre cover.
3. high-protection level power brick as claimed in claim 1, it is characterized in that, the material of described power brick base plate (2) is carbon fiber-reinforced titanium bag aluminum-magnesium alloy composite materials.
4. high-protection level power brick as claimed in claim 1, is characterized in that, described battery module (3) is divided into ordered series of numbers and is located at described power brick casing (1) inside.
5. high-protection level power brick as claimed in claim 1, it is characterized in that, the side of described power brick casing (1) is provided with a hollow-out parts (13), described connector (4) is connected with described battery module (3), and it is outside to extend to power brick casing (1) through described hollow-out parts (13).
6. improve a method for power brick degree of protection, it is characterized in that, filled by organic silica gel described power brick is inner and battery module is inner, waterproofing design is adopted to connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410640827.9A CN104538567B (en) | 2014-11-13 | 2014-11-13 | High-protection level battery bag and the method for improving battery bag degree of protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410640827.9A CN104538567B (en) | 2014-11-13 | 2014-11-13 | High-protection level battery bag and the method for improving battery bag degree of protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104538567A true CN104538567A (en) | 2015-04-22 |
| CN104538567B CN104538567B (en) | 2018-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410640827.9A Active CN104538567B (en) | 2014-11-13 | 2014-11-13 | High-protection level battery bag and the method for improving battery bag degree of protection |
Country Status (1)
| Country | Link |
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| CN (1) | CN104538567B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2881979Y (en) * | 2006-01-19 | 2007-03-21 | 东莞新能源电子科技有限公司 | Safety battery assembling structure |
| CN201667365U (en) * | 2009-09-29 | 2010-12-08 | 河南比得力高新能源科技有限公司 | Waterproofing device for Li-ion battery pack of electric motorcar |
| CN101964432A (en) * | 2010-09-16 | 2011-02-02 | 南京双登科技发展研究院有限公司 | Battery pack heat dissipation method for electric automobile |
| CN207214036U (en) * | 2017-08-08 | 2018-04-10 | 绍兴总杰电器有限公司 | A kind of big combustion head of firepower |
-
2014
- 2014-11-13 CN CN201410640827.9A patent/CN104538567B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2881979Y (en) * | 2006-01-19 | 2007-03-21 | 东莞新能源电子科技有限公司 | Safety battery assembling structure |
| CN201667365U (en) * | 2009-09-29 | 2010-12-08 | 河南比得力高新能源科技有限公司 | Waterproofing device for Li-ion battery pack of electric motorcar |
| CN101964432A (en) * | 2010-09-16 | 2011-02-02 | 南京双登科技发展研究院有限公司 | Battery pack heat dissipation method for electric automobile |
| CN207214036U (en) * | 2017-08-08 | 2018-04-10 | 绍兴总杰电器有限公司 | A kind of big combustion head of firepower |
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| Publication number | Publication date |
|---|---|
| CN104538567B (en) | 2018-01-09 |
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