CN105679976B - Battery case - Google Patents
Battery case Download PDFInfo
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- CN105679976B CN105679976B CN201410676664.XA CN201410676664A CN105679976B CN 105679976 B CN105679976 B CN 105679976B CN 201410676664 A CN201410676664 A CN 201410676664A CN 105679976 B CN105679976 B CN 105679976B
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- Prior art keywords
- battery
- battery case
- box body
- main
- box
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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)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The present invention is a kind of related battery case, comprising: which battery box body, has the main accommodation space sealed with extraneous gas, the wall surface of the battery box body is provided with compressive deformation component, the compressive deformation component side is contacted with external pressure, and the other side and the main accommodation space contact with pressure；And multiple battery packs, it is contained in the main accommodation space, the backward battery box body extension is electrically connected between the multiple battery pack and stretches out positive and negative two electrodes.Battery case of the present invention is adjustable pressure in battery case, has the technical effect for reducing fatigue aging.
Description
Technical field
This application involves a kind of battery case is arrived, more particularly to the battery case of electric automobiles leakproofness.
Background technique
Battery case used in existing new-energy automobile be can not ignore since lithium battery can exist in charge and discharge process
Volume change causes pressure change in case, and installation waterproof vent valve mode is generally taken to alleviate pressure change in case.
Refering to Figure 1, the Chinese invention patent application of Publication No. 103311479A discloses one kind in sealing electricity
Pond case.The sealed cell case has main box and upper cover 70, installs waterproof vent valve 72 on main box, waterproof vent valve 72 has waterproof
Ventilative film layer, guarantees battery case waterproofness.
When sealed cell case takes into account ventilative voltage regulation function, though install existing waterproof vent valve 72 can waterproof, not
The entrance that can entirely prevent vapor, there are certain moisture-vapor transmission, the vapor of entrance, which exists, condenses into water droplet
Possibility, there is the danger that may cause battery pack short circuit in moisture in case.
Summary of the invention
In view of defect present in the above-mentioned prior art, the purpose of the application is, provides a kind of battery case, can
Pressure in enough regulating cell casees.
To achieve the goals above, a kind of battery case proposed according to the present invention comprising: battery box body, have with
The main accommodation space of extraneous gas sealing, the wall surface of the battery box body are provided with compressive deformation component, the compressive deformation component
Side is contacted with external pressure, and the other side and the main accommodation space contact with pressure；And multiple battery packs, it is contained in the main receiving
It is electrically connected the backward battery box body extension in space, between the multiple battery pack and stretches out positive and negative two electrodes.
The present invention also can be used following technical measures and further realize.
Battery case above-mentioned, wherein the compressive deformation component is springform, when the springform pressure at both sides is inconsistent,
Springform deformation.
Battery case above-mentioned, wherein the compressive deformation component is the thin wall component with foldable structure, the thinner wall section
When part pressure at both sides is inconsistent, thin wall component deformation.
Battery case above-mentioned, wherein the battery box body is additionally provided with waterproof vent valve and/or explosion-proof plug.
Battery case above-mentioned, further include: temperature control panel is set in the battery box body, with the multiple battery
Group thermo-contact；There is flow channel for liquids, which connects inlet tube and outlet tube in the temperature control panel；The battery case case
Body is provided with two holes for wearing the inlet tube He the outlet tube.
Battery case above-mentioned further includes battery management circuit plate, is set in the battery box body, battery management electricity
Road plate is connect with multiple battery pack signal.
Battery case above-mentioned, wherein the battery box body includes: main box, spatially structure, above the main box
For opening；And Box Cover, seal buckle are set to the upper surface of the main box, it is empty that the Box Cover and the main box define the main receiving
Between；Wherein, which is set on the side wall of the main box.
Battery case above-mentioned, wherein the battery box body, in the side of the compressive deformation component and external contact, also
It is provided with cushion space, which is connected to outside, is provided with waterproof vent valve on the side wall of the cushion space.
Battery case above-mentioned, wherein filled with inert gas and/or carbon dioxide in the main accommodation space.
Battery case above-mentioned, wherein be provided with elastomeric pad between multiple battery packs, the multiple battery pack with
Elastomeric pad is provided between the battery box body.
The present invention has obvious advantages and beneficial effects compared with the existing technology.By above-mentioned technical proposal, the present invention
Battery case, at least have the advantage that
One, battery case of the invention is provided with compressive deformation component, has the effect of pressure in regulating cell box body.
Battery case sealing, effectively prevents vapor and enters box house, condense in the case so as to avoid vapor and cause battery pack
The danger of short circuit.
Two, battery case of the invention, has that structure is simple, cost is relatively low, is easily assembled to, and is suitable for most vehicle in the market
Type.
Three, battery case of the invention is filled with inert gas or carbon dioxide, and battery case battery spontaneous combustion can be effectively prevented,
The chain combustion explosion reaction of a wide range of battery will not be caused, improve the safety of battery case.
Detailed description of the invention
Fig. 1 is the schematic diagram of the sealed cell case of the prior art.
Fig. 2A, Fig. 2 B are the schematic cross-sectional view of battery case first embodiment of the present invention, first embodiment compressive deformation respectively
Schematic diagram.
Fig. 3 A, Fig. 3 B are the schematic cross-sectional view of battery case second embodiment of the present invention, second embodiment compressive deformation respectively
Schematic diagram.
Fig. 4 is the stereoscopic schematic diagram of battery case 3rd embodiment of the present invention
Fig. 5 is the perspective exploded view of battery case 3rd embodiment of the present invention
Fig. 6 is the section view end view of battery case 3rd embodiment of the present invention.
Fig. 7 is the schematic top plan view of the cabinet of third embodiment of the invention.
Fig. 8 is the schematic top plan view of the main box of the receiving battery pack of third embodiment of the invention.
Fig. 9 is the schematic diagram of main box one end of third embodiment of the invention.
Figure 10 is the schematic diagram of the main box other end of third embodiment of the invention.
Figure 11 is another top view of the main box of third embodiment of the invention.
Figure 12 is the enlarged diagram of main box one end of third embodiment of the invention.
Figure 13 is the stereoscopic schematic diagram of the Box Cover of third embodiment of the invention.
Figure 14 is the sectional perspective schematic diagram of the Box Cover of third embodiment of the invention.
Figure 15 is the stereoscopic schematic diagram of the main box of third embodiment of the invention.
Figure 16 is the partial enlargement diagram of Figure 15.
1: main box 2: Box Cover 3: bandage slot
4: waterproof vent valve 5,51: explosion-proof plug 6,61: pole
8: disengaging liquid pipe 9: temperature control panel 10,11: elastomeric pad
12: battery pack 13: reinforcing rib 14: liquid pipe hole
15,16: lip 18: from plate space 19: first boss
20: third boss 21: second boss 24,25,26: extension
32: circuit board 81: gasket 100: battery box body
300: main accommodation space 310: compressive deformation component 320: cushion space
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to battery case its specific embodiment with the slow pressure of sealing proposed according to the present invention, step, knot
Structure, feature and its effect are described in detail.
It please refers to shown in Fig. 2A, Fig. 2 B, is schematic cross-sectional view, the first implementation of battery case first embodiment of the present invention respectively
The schematic diagram of example compressive deformation.
The battery case of first embodiment of the invention including battery box body 100 and is contained in the battery box body 100
Multiple battery packs 12.
The battery box body 100 has the main accommodation space 300 with outside sealing, and multiple battery pack 12 is contained in the master
In accommodation space 300.Compressive deformation component 310 is provided on the wall surface of the battery box body 100, the compressive deformation component 310
Side is contacted with external pressure F1, and the other side is contacted with the main 300 pressure F2 of accommodation space.
The battery box body 100 includes: main box 1 and Box Cover 2 in the present embodiment, and 2 seal buckle of Box Cover is set to should
The upper surface of main box 1, the Box Cover 2 and the main box 1 define the main accommodation space 300.The compressive deformation component 310 setting
In on the side wall of the main box 1.Filled with inert gas or/and carbon dioxide in the main accommodation space 310.The battery box body
100 are also provided with explosion-proof plug 5.
The compressive deformation component 310 can be elastic membrane or the thin wall component with foldable structure, the compressive deformation component
When 310 pressure at both sides are inconsistent, which deforms (as shown in Figure 2 B).As shown in Figure 2 B, when main accommodation space
When 310 pressure F2 are greater than external pressure F1, compressive deformation component 310 is to outer projection, otherwise compressive deformation component 310 is to main appearance
Receive space 310 recess.
The battery case of first embodiment, further includes: temperature control panel 9 is set in the battery box body 100, and described
Multiple battery packs 12 thermally contact；There is flow channel for liquids in the temperature control panel 9.
The battery case of first embodiment further includes battery management circuit plate, is set in the battery box body, the cell tube
Reason circuit board 32 is connect with multiple 12 signal of battery pack.
It please refers to shown in Fig. 3 A, Fig. 3 B, is schematic cross-sectional view, the second implementation of battery case second embodiment of the present invention respectively
The schematic diagram of example compressive deformation.
Second embodiment of the invention is similar to first embodiment, the difference is that the partial structurtes of battery box body 100.
It is empty to be additionally provided with buffering in the side of the compressive deformation component 310 and external contact for the battery box body 100 of the present embodiment
320, which is connected to outside, and waterproof vent valve 4 is provided on the side wall of the cushion space 320.
It please refers to Fig. 4, show to stereoscopic schematic diagram, the stereo decomposing for shown in Figure 14, being battery case 3rd embodiment of the present invention
Intention, the top view of section view end view, main box 1, the schematic top plan view of the main box 1 of receiving battery pack 12, main box 1
The amplification signal of the schematic diagram of one end, the schematic diagram of 1 other end of main box, another top view of main box 1,1 one end of main box
The sectional perspective schematic diagram of figure, the stereoscopic schematic diagram of Box Cover 2, Box Cover 2.
The battery case of third embodiment of the invention, including, it battery box body 100 and is contained in the battery box body 100
Multiple battery packs 12.
Multiple battery pack 12 is integrated via bandage binding, and multiple 12 side of battery pack is provided with temperature control panel 9,
One end of the temperature control panel 9 be provided with disengaging liquid pipe 8, multiple battery pack 12 be electrically connected after to outside battery box body 100
Extend two electrode terminals 6,61.
Elastomeric pad 10,11 is provided between the battery box body 100 and multiple battery pack 12.In the present embodiment, bullet
Property gasket 10,11 be foam, battery case vibration when, extraneous vibration can be eliminated to greatest extent and be transmitted to battery pack mould group in case
12, eliminating Long-term Vibration causes 12 tab connection sheet of battery pack, harness plumb joint etc. to snap, and improves battery case reliable durable.
Above-mentioned battery box body 100, including main box 1 and Box Cover 2.Above-mentioned main box 1 spatially type has length
Axis direction, 1 upper side of main box are opening.The Box Cover 2 is buckled in 1 upper side of main box, defines the master of battery pack 12
Accommodation space 300.The Box Cover 2 is fixed together with the main box 1 via bandage, and bandage is set to the Box Cover 2 and the master
In the bandage slot 3 of cabinet 1.
Above-mentioned main box 1 is provided with waterproof vent valve 4 and explosion-proof plug 51.Specifically, the both ends of 1 long axis direction of main box
It is extended with first boss 19 and second boss 21 respectively, is respectively arranged with electrode pole in the first boss 19 and the second boss 21
Column 61,6.The electrode terminal 61,6 is integrated injection molding on main box 1.The first boss 19 of the main box 1 is provided with explosion-proof plug
51, which flicks under preset pressure.19 end of first boss of the main box 1 is additionally provided with third boss 20.
Above-mentioned main box 1 is provided with receiving between one end of the long axis direction, first boss 19 and third boss 20
The slave plate space 18 of circuit board 32.
It is provided in the second boss 21 of one end of the long axis direction of above-mentioned main box 1 for wearing disengaging liquid pipe 8
Two liquid pipe holes 14, and utilize the gap of gasket 81 sealing outlet tube 8 and two holes 14.The battery electrode column 6 and the liquid pipe hole
Partition 30 is provided between 14.Reinforcing rib or stiffening plate can be set on the interior survey wall of the main box 1.
Above-mentioned Box Cover 2 is provided at least three internally spatially extended extensions 24,25,26, in level
The battery pack 12 is positioned on direction.The Box Cover 2 is provided with reinforcing rib 13.It is provided with explosion-proof plug 5 on the Box Cover 2, this is explosion-proof
Plug 5 flicks under preset pressure.Waterproof vent valve 4 is also provided on the Box Cover 2.
Above-mentioned main box 1 and the Box Cover 2 are respectively provided with the lip 15,16 mutually abutted, seal the lip by gluing
15,16 contact position.The explosion-proof plug 5,51 can flicked when pressure is rapidly increased to certain pressure in battery case, be played fast
Fast pressure release effect, prevents that battery case from bursting or component flies out accident.
Please refer to shown in Figure 15, Figure 16, be battery case 3rd embodiment of the present invention 1 stereoscopic schematic diagram of main box,
The partial enlargement diagram of Figure 15.
1 one end of main box of the present embodiment is provided with partition 22, defines cushion space 320.The partition 22 can for by
Compressive strain component or the partition 22 are provided with compressive deformation component 310；The outside portion of the cushion space 320 is provided with waterproof
Vent valve 4.Temperature change will lead to gas volume in case and change in the battery box body 100 of sealing, so as to cause pressure in case
Change, and compressive deformation component 310 being capable of pressure in regulating box.
The battery case of the present embodiment is in use, multiple battery cases, formation battery pack set in parallel or series for automobile or electric appliance
It is standby that electric power is provided.
Battery case and battery box body of the invention, has that structure is simple, cost is relatively low, is easily assembled to, and versatility is good
Technological merit.
The lip 15,16 of battery case and battery box body of the invention, main box 1 and Box Cover 2 fastens glue envelope, guarantees electricity
Dust seal performance in the box body of pond.Main box 1 is provided with waterproof vent valve, case external pressure in tandem-driving bogie, eliminates battery case
Because case external and internal pressure frequently changes after being fully sealed, cabinet frequent expansion contraction bring fatigue aging, lip is caused to snap
Adverse effect, to improve battery case reliable durable.
Explosion-proof plug 51,5 is arranged in battery case and battery box body of the invention, main box 1 and Box Cover 2, in battery case
After pressure acute variation reaches some strength, pressure release is flicked in time, avoids hypertonia, and cabinet explosion is caused to have device to fly out.
Battery case and battery box body of the invention, main box 1 are provided with the disengaging liquid pipe mounting hole of temperature control plate, and pass through
Gasket 81 realizes sealing, prevents dust, the entrance of steam.
Battery box body of the invention uses high molecular material, light-weight, and energy density is high, anticorrosive property is good.
Battery case of the invention is provided with compressive deformation component 310 in battery box body 100, has regulating cell case case
The effect of pressure in body 100.Meanwhile because being provided with cushion space 320, effectively prevents vapor and enter box house, from
And it avoids vapor and condenses the danger for causing battery pack short circuit in the case.
Battery case of the invention, has that structure is simple, cost is relatively low, is easily assembled to, and is suitable for big multi-vehicle-type in the market.
Battery case of the invention, cabinet can use the low material of flame-resistant high-temperature-resistant heat conduction efficiency, effectively reduce external temperature
Degree is on the intracorporal influence of case.
Battery case of the invention, compressive deformation component 310 play the role of balance box external and internal pressure, eliminate battery case sealing
Afterwards because cabinet external and internal pressure frequently changes, cabinet frequent expansion is caused to shrink the aging of bring fatigue of materials, sealing rupture etc. no
Good influence, to improve battery case reliable durable.
The battery case of the application is filled with inert gas or carbon dioxide, and battery case battery spontaneous combustion can be effectively prevented, will not
Cause the chain combustion explosion reaction of a wide range of battery, improves the safety of battery case.
Although the present invention has been disclosed as a preferred embodiment, it is so not intended to limit the invention the range of implementation, foundation
Simple equivalent changes and modifications, still fall within technical solution of the present invention made by claims of the present invention and description
In range.
Claims (9)
1. a kind of battery case, it is characterised in that comprising:
Battery box body, has the main accommodation space sealed with extraneous gas, and the wall surface of the battery box body is provided with by buckling
Shape component, the compressive deformation component side are contacted with external pressure, and the other side and the main accommodation space contact with pressure；And it is multiple
Battery pack is contained in the main accommodation space, and the backward battery box body extension is electrically connected between the multiple battery pack and is stretched out
Positive and negative electrode；
The battery box body is additionally provided with cushion space in the side of the compressive deformation component and external contact, the buffering
Space is connected to outside, is provided with waterproof vent valve on the side wall of the cushion space.
2. battery case as described in claim 1, it is characterised in that wherein the compressive deformation component is springform, the elasticity
When mould pressure at both sides is inconsistent, springform deformation.
3. battery case as described in claim 1, it is characterised in that wherein the compressive deformation component is with foldable structure
Thin wall component, when the thin wall component pressure at both sides is inconsistent, the thin wall component deformation.
4. the battery case as described in any claim in claims 1 to 3, it is characterised in that the wherein battery box body
It is additionally provided with waterproof vent valve and/or explosion-proof plug.
5. battery case as described in claim 1, it is characterised in that its further include:
Temperature control panel is set in the battery box body, thermally contacts with the multiple battery pack；Have in the temperature control panel
Flow channel for liquids, the temperature control panel connect inlet tube and outlet tube；The battery box body be provided with for wear the inlet tube and
Two holes of the outlet tube.
6. battery case as described in claim 1, it is characterised in that it further includes battery management circuit plate, is set to the battery case
In cabinet, which connect with multiple battery pack signal.
7. battery case as described in claim 1, it is characterised in that wherein the battery box body includes:
Main box, spatially structure are opening above the main box；And
Box Cover, seal buckle are set to the upper surface of the main box, and the Box Cover and the main box define the main accommodation space；
Wherein, which is set on the side wall of the main box.
8. battery case as described in claim 1, it is characterised in that wherein in the main accommodation space filled with inert gas and/
Or carbon dioxide.
9. battery case as described in claim 1, it is characterised in that be wherein provided with elastic cushion between multiple battery packs
Piece is provided with elastomeric pad between the multiple battery pack and the battery box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676664.XA CN105679976B (en) | 2014-11-21 | 2014-11-21 | Battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676664.XA CN105679976B (en) | 2014-11-21 | 2014-11-21 | Battery case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105679976A CN105679976A (en) | 2016-06-15 |
| CN105679976B true CN105679976B (en) | 2019-08-16 |
Family
ID=56958275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410676664.XA Active CN105679976B (en) | 2014-11-21 | 2014-11-21 | Battery case |
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| Country | Link |
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| CN (1) | CN105679976B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340603B (en) * | 2016-11-29 | 2018-09-21 | 北京新能源汽车股份有限公司 | A kind of power battery explosion protection structure and electric vehicle |
| CN109962190B (en) * | 2017-12-26 | 2021-03-26 | 比亚迪股份有限公司 | Battery pack and vehicle |
| CN109326759B (en) * | 2018-10-30 | 2022-03-18 | 广州小鹏汽车科技有限公司 | Pressure regulating device and battery system |
| TWI792731B (en) * | 2021-11-30 | 2023-02-11 | 新盛力科技股份有限公司 | Battery module and battery conductive frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022389A (en) * | 2011-09-22 | 2013-04-03 | 深圳市沃特玛电池有限公司 | Battery box |
| CN103280545A (en) * | 2013-06-17 | 2013-09-04 | 长沙矿冶研究院有限责任公司 | Deep-water battery box |
| CN103311479A (en) * | 2013-05-20 | 2013-09-18 | 东风汽车公司 | Battery system of electric car |
| CN204271161U (en) * | 2014-11-21 | 2015-04-15 | 北京长城华冠汽车科技有限公司 | Battery case |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012254820A (en) * | 2011-06-10 | 2012-12-27 | Canon Inc | Packaging body |
-
2014
- 2014-11-21 CN CN201410676664.XA patent/CN105679976B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022389A (en) * | 2011-09-22 | 2013-04-03 | 深圳市沃特玛电池有限公司 | Battery box |
| CN103311479A (en) * | 2013-05-20 | 2013-09-18 | 东风汽车公司 | Battery system of electric car |
| CN103280545A (en) * | 2013-06-17 | 2013-09-04 | 长沙矿冶研究院有限责任公司 | Deep-water battery box |
| CN204271161U (en) * | 2014-11-21 | 2015-04-15 | 北京长城华冠汽车科技有限公司 | Battery case |
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| Publication number | Publication date |
|---|---|
| CN105679976A (en) | 2016-06-15 |
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Address after: 101300 Renhe Town, Beijing, Shunyi District, the north of the town of Victoria Hospital, the 4 (Science and technology innovation function area), 1 Applicant after: BEIJING CHANGCHENG HUAGUAN AUTOMOBILE TECHNOLOGY CO., LTD. Address before: 101300 Beijing City, Yuhua Tianzhu Airport Industrial Zone B Shunyi District Road No. 29 Applicant before: CH AUTO TECHNOLOGY CORPORATION LTD. |
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