CN207134404U - Battery case - Google Patents
Battery case Download PDFInfo
- Publication number
- CN207134404U CN207134404U CN201721172934.9U CN201721172934U CN207134404U CN 207134404 U CN207134404 U CN 207134404U CN 201721172934 U CN201721172934 U CN 201721172934U CN 207134404 U CN207134404 U CN 207134404U
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- Prior art keywords
- layer
- battery
- battery case
- lower box
- thickness
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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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- Battery Mounting, Suspending (AREA)
Abstract
The application is related to cell art, more particularly to a kind of Battery case.Battery case provided herein is used to be connected with installation foundation, the Battery case includes upper lid and battery lower box, the upper lid is connected with the battery lower box, the Battery case also includes fireprotection layer, the fireprotection layer is arranged at the outer surface of the battery lower box, and the outer surface is the battery lower box away from the surface of the side of the upper lid.Battery case provided herein loses the ability for continuing to carry its internal battery to be easily damaged when solving existing Battery case by flame combustion, the problem of causing its internal battery and flame contact and explosion accident on fire occurs.
Description
Technical field
The application is related to cell art, more particularly to a kind of Battery case.
Background technology
At present, with the fast development of automobile, requirement more and more higher of the automobile industry to automotive light weight technology.Battery is automobile
An important part, requirement of the battery industry to the weight of Battery case also more and more higher therewith, specifically, battery
The smaller requirement for more meeting automotive light weight technology of weight of casing.Therefore, in order to mitigate the weight of Battery case, using aluminium alloy etc.
Battery case is widelyd popularize in Battery Market made of light material.
Because the fusing point of the light materials such as aluminium alloy in itself is relatively low, such as the fusing point of metallic aluminium is 660.32 DEG C, so
And the temperature that fire blazes up is up to thousands of degrees Celsius, along with battery is easy to that blast thing on fire occurs in flame combustion
Therefore, then, when on fire near Battery case, Battery case just easily reaches fusing point made of the light materials such as aluminium alloy
And melt, make Battery case can not continue to carry the weight of its internal cell, can not continue to ensure the safety of its internal cell, very
It may extremely battery is fallen into fire, the accident of battery catches fire blast occurs.
Utility model content
This application provides a kind of Battery case, to solve the problems, such as existing Battery case fire resistance property difference.
This application provides a kind of Battery case, and for being connected with installation foundation, the Battery case includes upper lid and electricity
Pond lower box, the upper lid are connected with the battery lower box, and the Battery case also includes：
Fireprotection layer, the fireprotection layer are arranged at the outer surface of the battery lower box, and the outer surface is under the battery
Casing is away from the surface of the side of the upper lid.
Further, in the short transverse of the Battery case, the projection and the throwing of the outer surface of the fireprotection layer
Shade overlaps.
Further, the battery lower box includes Part I and Part II, the Part I and described second
Part is connected, and the Part I, around the Part II, the Part I is used to be connected with the installation foundation, institute
Lid is stated to be fixedly connected with the Part I；
The fireprotection layer includes first layer and the second layer, and the first layer is arranged at the Part I and deviates from the upper lid
Side, the second layer is arranged at the side that the Part II deviates from the upper lid, and the thickness of the first layer and institute
The thickness for stating the second layer is unequal.
Further, the thickness at each point of the first layer is equal；And/or the thickness phase at each point of the second layer
Deng.
Further, the thickness of the first layer is at least two times of thickness of the second layer.
Further, the thickness of the first layer is 4mm, and the thickness of the second layer is 2mm.
Further, the fireprotection layer is fire resistant coating, and the fire resistant coating coating is arranged on the battery lower box
Outer surface.
Further, the fireprotection layer uses any one in expanding fire-proof paint and non-expansion type coating or two kinds
It is made.
Further, the fireprotection layer is any one in flameproof fabric and anti-guncotton or two kinds, and the fireprotection layer leads to
Cross the mode being adhesively fixed or be fixed on the battery lower box by way of fastener fixation.
Further, the upper lid is made up of applied fireproofing.
The technical scheme that the application provides can reach following beneficial effect：
Battery case provided herein includes battery lower box, and battery is placed in the battery lower box, makes battery
Weight mainly born by battery lower box, the battery lower box outer surface set fireprotection layer.Compared with prior art, when
When on fire near Battery case made of the lightweight metal materials such as aluminium alloy, fireprotection layer plays heat-insulated work to the battery lower box
With making the heat that blazes up of fire not all to be delivered on the battery lower box, be not up to the temperature of battery lower box
The fusing point of the lightweight metal materials such as aluminium alloy, make the battery lower box that still there is enough bearing capacitys, to undertake Battery case
The weight of interior battery and collision and extruding from battery and extraneous load are born, battery is not occurred because battery nowel
The situation that body melts and dropped, more will not make battery fall into fire the situation that blast on fire occurs.
It should be appreciated that the general description and following detailed description of the above are only exemplary, this can not be limited
Application.
Brief description of the drawings
The sectional view for the Battery case that Fig. 1 is provided by the embodiment of the present application；
The partial sectional view for the Battery case that Fig. 2 is provided by the embodiment of the present application.
Reference：
Covered on 10-；
20- battery lower boxes；
21- Part I；
22- Part II；
30- fireprotection layers；
31- first layers；
The 32- second layers；
40- batteries.
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the application
Example, and be used to together with specification to explain the principle of the application.
Embodiment
The application is described in further detail below by specific embodiment and with reference to accompanying drawing.
As depicted in figs. 1 and 2, the Battery case is used to be connected with installation foundation, and the installation foundation can be used on car body
In the part for being used to install Battery case on the sweep of installation Battery case or other electrical equipments, Battery case and installation base
Plinth the connected mode such as can be connected by screw bolts, weld and being attached.The Battery case includes upper lid 10 and battery lower box 20,
Wherein, upper lid 10 can be located at the top of Battery case, and in order to improve the fire resistance property at the top of Battery case, upper lid 10 can be adopted
It is made of applied fireproofing, any one in such as glass fiber compound material, carbon fibre composite；Upper lid 10 is also main
Play a part of sealing at the top of Battery case, therefore preferably, upper lid 10 can be by the way of Nian Jie with battery lower box 20
It is attached, can be specifically bonded using structure glue, the sealing effectiveness of this connected mode is relatively preferable, in addition, also may be used
To be attached using other connected modes such as riveting, welding, bolt connections.
Because the battery 40 in Battery case is generally mounted on battery lower box 20, and fixed with battery lower box 20
Connection, then, actually battery lower box 20 primarily serves the effect for undertaking the weight of battery 40 in Battery case, so ensureing
The security performance of battery lower box 20 is critically important.However, in order to meet the requirement of automotive light weight technology, the battery lower box 20
One or more in the lightweight metal materials such as generally use aluminium alloy, magnesium alloy, high strength steel are made, but this lightweight material
The fusing point of material itself is relatively low, if Battery case nearby occurs on fire, battery lower box 20 is just made of this material
Easily reach its fusing point and melt, so the battery 40 in the battery lower box 20 is just likely to be burnt by fire, so as to lead
The accident of blast on fire is caused to occur.
In order to prevent the generation of above-mentioned accident, the embodiment of the present application is provided with fireprotection layer in the outer surface of battery lower box 20
30, the outer surface is battery lower box 20 away from the surface of the side of upper lid 10.Fireprotection layer 30 plays to the battery lower box 20
Heat-blocking action, the heat that fire blazes up all is not delivered on the battery lower box 20, make the temperature of battery lower box 20
Degree is not up to the fusing point of the lightweight metal materials such as aluminium alloy, the battery lower box 20 is still had enough bearing capacitys, comes
Undertake the weight of battery 40 in Battery case and bear collision and extruding from battery 40 and extraneous load, make battery 40 not
It can occur because the situation that battery lower box 20 melts and dropped, more will not make battery 40 fall into fire the thing that blast on fire occurs
Therefore.
Further, in order to give full play to the fire resistance property of fireprotection layer 30, fireprotection layer 30 can be in battery lower box 20
Outer surface covers setting comprehensively, i.e.,：Make the everywhere of the outer surface of battery lower box 20 that fireprotection layer 30 is all set, make battery nowel
The whole outer surface of body 20 is all protected by fireprotection layer 30, that is to say, that in the short transverse (institute in such as Fig. 1 of Battery case
Show X-direction) on, the projection and the projection of the outer surface of battery lower box 20 of fireprotection layer 30 coincide, and so can further carry
The fire resistance property of high battery lower box 20.
In specific implementation, fireprotection layer 30 can be fire resistant coating, and fire resistant coating can pass through roller coating, spraying by fireproof coating
Or the mode brushed coats the outer surface for being arranged on battery lower box 20, fireproof coating is easier to ooze in coating procedure
Thoroughly in the aperture of the outer surface of battery lower box 20, so as to strengthen the attachment of fire resistant coating and the outer surface of battery lower box 20
Power, such fire resistant coating are not allowed easy to fall off, can extend usage time.
Above-mentioned fire resistant coating can be by any one in expanding fire-proof paint and Non-expansive fireproof paint or two kinds
It is made.Specifically, two layers of fire resistant coating even more multi-layer fireproofing coating can be overlapped, such as can be in battery lower box 20
Outer surface apply one layer of expanding fire-proof paint after, apply the fire prevention of one layer of non-expansion type again on aforementioned swollen type fireproof coating
Coating.Wherein, expanding fire-proof paint expanded by heating is foamed, and forms carbonaceous foam thermal insulation layer, and the carbonaceous foam thermal insulation layer will be by
The object of protection is closed, and this carbonaceous foam thermal insulation layer has not only completely cut off oxygen, has fire retardation, also because its quality is dredged
Pine and there is good heat-proof quality, can postpone the transmission of heat and protected object, and then the protected object of prevention
Because temperature rise and caused by its intensity decline；Non-expansive fireproof paint is because itself being flame retardancy fireproof coating or non-ignitable
Property fireproof coating, this fireproof coating can equally prevent protected object ignition, and prevent protected object because
Temperature raises and causes its intensity to decline.
In addition, fireprotection layer 30 can also be any one in flameproof fabric and anti-guncotton or two kinds, this flameproof fabric or anti-
Guncotton with respect to fire resistant coating for, it is not necessary to take time and effort and carry out hand spray, brushing etc., flameproof fabric or anti-guncotton can pass through
The mode that is adhesively fixed is fixed on battery lower box 20 by way of fastener fixation, more square at least in construction
Just it is, simpler in operation.The fireprotection layer 30 can be set two layers, or even set multilayer, such as the appearance in battery lower box 20
After face sets one layer of anti-guncotton, one layer of flameproof fabric is set again on this layer of anti-guncotton.Flameproof fabric or anti-guncotton by anti-flammability or
Only combustion property material is made, and has the function that stronger fire prevention is only fired and heat-insulated, in addition, anti-guncotton is mainly passed through by polyester fiber raw materials
After combing laying net for shaping, mixed using low melting point binder fibre, this anti-guncotton also has soft texture, elasticity good, no
The advantages that yielding, and this anti-guncotton forms fine and close carburization zone in burning, and carbon monoxide and carbon dioxide content are low, only
A small amount of nontoxic flue gas is produced, is used more environmentally friendly.
As depicted in figs. 1 and 2, battery lower box 20 includes Part I 21 and Part II 22, and the Part I 21 is led
Connection function is played, is specifically responsible for being fixedly connected with installation foundation and is fixedly connected with upper lid 10, the Part I 21 can be with
Set, can be so connected with stronger with installation foundation and upper lid 10, Part I 21 is close to upper lid around Part II 22
The surface of 10 sides can contact close to the surface of the side of Part I 21 with upper lid 10 and set and be tightly connected, so can be more
The good effect for reaching top sealing；Part I 21 is connected with Part II 22, and battery 40 is mainly interior with Part II 22
Portion's contact is placed, and the two can be connected, and can also be not connected to, and Part II 22 primarily serves the effect of the carrying weight of battery 40.
Further, fireprotection layer 30 can include first layer 31 and the second layer 32, and first layer 31 is arranged at Part I 21
Away from the side of upper lid 10, the second layer 32 is arranged at the side that Part II 22 deviates from upper lid 10, due to Part I 21 and the
Effect that two parts 22 primarily serve is different, then the thickness of first layer 31 and the second layer 32 can not with unequal, material
It is identical.The specific embodiments different with the material of the second layer 32 on first layer 31 can be that first layer 31 is prevented using intumescent
Fiery coating is made, and the second layer 32 can use flameproof fabric, and this is the combination between one of which fire proofing material, other conjunctions
The combination of reason is all in the protection domain of the application.
In order to facilitate buying and constructing, the thickness at each point of first layer 31 and/or the second layer 32 can be with equal.With regard to fire prevention
For cloth, the thickness at the flameproof fabric each point of a common specification is typically subequal, so using thickness at each point
Equal flameproof fabric can be more convenient for the purchase of flameproof fabric and the construction of staff；In addition, prior, first layer 31 and/or
Thickness at each point of the second layer 32 is equal can to make fire resistance property basic one at each point of first layer 31 and/or the second layer 32
Cause, be not in thus the relatively weak place of fire resistance property, it is possible to ensure the fire resistance property of fireprotection layer, or even also
The fire prevention time can be extended.
It is well known that the main position for playing connection function is subjected to prolonged concentrated stress, can relatively hold
Easily reach its operating limit, so this position would generally carry out reinforcement processing, therefore on the basis of above-described embodiment, first
The thickness of layer 31 can be at least two times of the thickness of the second layer 32, and the thickness of increase first layer 31 can improve first layer 31
Fire resistance property, and then extend the fire prevention time and delay the time for being burned to Part I 21.But in specific implementation process,
The thickness of fireprotection layer 30 is also unsuitable blocked up, although blocked up fireprotection layer 30 can improve fire resistance property, can also increase battery
The weight of casing, for the today for increasingly pursuing lightweight battery design, Battery case in light weight, that performance is good turns into
Trend, so the thickness of fireprotection layer will also carry out appropriate control.A kind of preferred embodiment is：The thickness of first layer 31 can be with
For 4mm, the thickness of the second layer 32 can be 2mm.The fireprotection layer 30 of this thickness in actual use, is not only prevented with stronger
Fiery performance, it also is compliant with the light-weighted requirement of Battery case.Further it will be understood that in specific implementation, as long as used
Thickness is just all claimed in the application to solve the application problem to be solved in the allowed band of error
In the range of, the allowed band of the usual error is：The thickness of first layer 31 is 3-5mm, and the thickness of the second layer 32 is 1.5-
2.5mm。
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of Battery case, for being connected with installation foundation, the Battery case includes upper lid and battery lower box, it is described on
Lid is connected with the battery lower box, it is characterised in that also includes：
Fireprotection layer, the fireprotection layer are arranged at the outer surface of the battery lower box, and the outer surface is the battery lower box
Away from the surface of the side of the upper lid.
2. Battery case according to claim 1, it is characterised in that described in the short transverse of the Battery case
The projection and the projection of the outer surface of fireprotection layer coincide.
3. Battery case according to claim 1, it is characterised in that
The battery lower box includes Part I and Part II, and the Part I is connected with the Part II, and institute
Part I is stated around the Part II, the Part I is used to be connected with the installation foundation, it is described it is upper cover with it is described
Part I is fixedly connected；
The fireprotection layer includes first layer and the second layer, and the first layer is arranged at one that the Part I deviates from the upper lid
Side, the second layer are arranged at the side that the Part II deviates from the upper lid, and the thickness of the first layer and described the
Two layers of thickness is unequal.
4. Battery case according to claim 3, it is characterised in that
Thickness at each point of the first layer is equal；And/or
Thickness at each point of the second layer is equal.
5. Battery case according to claim 4, it is characterised in that the thickness of the first layer is the thickness of the second layer
At least two times of degree.
6. Battery case according to claim 4, it is characterised in that the thickness of the first layer is 4mm, the second layer
Thickness be 2mm.
7. Battery case according to claim 1, it is characterised in that the fireprotection layer is fire resistant coating, and the fire prevention applies
Layer coating is arranged on the outer surface of the battery lower box.
8. Battery case according to claim 7, it is characterised in that the fireprotection layer is using expanding fire-proof paint and non-
Any one or two kinds in intumescent coating are made.
9. Battery case according to claim 1, it is characterised in that the fireprotection layer is appointing in flameproof fabric and anti-guncotton
Meaning is one or two kinds of, and the fireprotection layer be fixed on by way of being adhesively fixed or by way of fastener fixation it is described
Battery lower box.
10. Battery case according to claim 1, it is characterised in that the upper lid is made up of applied fireproofing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721172934.9U CN207134404U (en) | 2017-09-13 | 2017-09-13 | Battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721172934.9U CN207134404U (en) | 2017-09-13 | 2017-09-13 | Battery case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207134404U true CN207134404U (en) | 2018-03-23 |
Family
ID=61638091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721172934.9U Active CN207134404U (en) | 2017-09-13 | 2017-09-13 | Battery case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207134404U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111806294A (en) * | 2020-07-23 | 2020-10-23 | 上海智租物流科技有限公司 | Combined battery power-exchanging cabinet system |
| CN113054273A (en) * | 2021-02-28 | 2021-06-29 | 南京工业大学 | Safe disassembling and nondestructive packaging method for cylindrical lithium ion battery |
| WO2023240394A1 (en) * | 2022-06-13 | 2023-12-21 | 宁德时代新能源科技股份有限公司 | Battery pack and electric device |
| US11870093B2 (en) * | 2018-06-21 | 2024-01-09 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle with a high-voltage battery |
| US11909071B2 (en) | 2018-06-21 | 2024-02-20 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle with a high-voltage battery |
-
2017
- 2017-09-13 CN CN201721172934.9U patent/CN207134404U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11870093B2 (en) * | 2018-06-21 | 2024-01-09 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle with a high-voltage battery |
| US11909071B2 (en) | 2018-06-21 | 2024-02-20 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle with a high-voltage battery |
| CN111806294A (en) * | 2020-07-23 | 2020-10-23 | 上海智租物流科技有限公司 | Combined battery power-exchanging cabinet system |
| CN111806294B (en) * | 2020-07-23 | 2021-09-17 | 上海智租物联科技有限公司 | Combined battery power-exchanging cabinet system |
| CN113054273A (en) * | 2021-02-28 | 2021-06-29 | 南京工业大学 | Safe disassembling and nondestructive packaging method for cylindrical lithium ion battery |
| WO2023240394A1 (en) * | 2022-06-13 | 2023-12-21 | 宁德时代新能源科技股份有限公司 | Battery pack and electric device |
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