CN215008432U - Lithium ion battery energy storage device of new energy automobile - Google Patents
Lithium ion battery energy storage device of new energy automobile Download PDFInfo
- Publication number
- CN215008432U CN215008432U CN202121309001.6U CN202121309001U CN215008432U CN 215008432 U CN215008432 U CN 215008432U CN 202121309001 U CN202121309001 U CN 202121309001U CN 215008432 U CN215008432 U CN 215008432U
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- China
- Prior art keywords
- assembly
- casing
- lithium ion
- ion battery
- new energy
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 22
- 238000004146 energy storage Methods 0.000 title claims description 12
- 238000005187 foaming Methods 0.000 claims abstract description 21
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 18
- 238000009792 diffusion process Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 4
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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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 utility model discloses a new energy automobile lithium ion battery energy memory, include the box assembly and set up in the inside module assembly of box assembly, the box assembly include down the casing assembly and with the last casing that casing assembly is connected down, the box assembly still include with the lower casing guard plate of casing assembly below is connected and is located down to the casing assembly down, sets up the foaming coating on the lower casing guard plate, and the foaming coating is located down between casing assembly and the lower casing guard plate. The utility model discloses a new energy automobile lithium ion battery energy memory, through setting up the cooperation of casing guard plate and foaming coating down, can reduce the damaged risk of battery package emergence casing, because inside design has the foaming intermediate layer, plays the effect of buffering energy-absorbing for the casing under the road surface grit and the friction of cutting to pieces can not harm easily, and the maintenance cost is low moreover, has guaranteed the stability of the internal environment of system.
Description
Technical Field
The utility model belongs to the technical field of lithium ion battery, specifically speaking, the utility model relates to a new energy automobile lithium ion battery energy memory.
Background
The new energy automobile production and marketing scale can be enlarged, the electric quantity of a single automobile can be improved, the market of the power battery keeps growing at a high speed, and a large development space is provided in the future. The global automobile industry is getting into a big revolution which is not met for a hundred years, the intellectualization and sharing trend of the automobile industry capacitor is very obvious, and the electromotion of the automobile industry is accelerating. Therefore, in the long run, a pure electric vehicle is the future development direction of the automobile industry, and under the good development situation of a new energy vehicle or the premise of good future development expectation, a power battery can meet the development requirement of competition with a fuel vehicle, but the perfect battery which can be achieved is very difficult.
The battery system experiences various complex working conditions and extreme operating environments from loading to service completion. From the problems associated with the current market long feedback battery system, the following factors to be considered in the development and design of the battery are: firstly, the safety of the battery is taken as a core; secondly, the manufacturing level and the production efficiency are improved through intelligent manufacturing and a digital factory, particularly the consistency of products, and the cycle life of the battery can be prolonged; the development of a third reinforced battery system, including its technology and industrialization, particularly prevention and control technologies such as thermal runaway, thermal diffusion; and the fourth full life period test verifies that the safety, reliability, cycle durability and environmental adaptability of the system are particularly enhanced.
The problem that a battery pack shell is damaged easily occurs in the conventional power battery system, and the whole pack is difficult to rework. The protection of the lower shell of the existing power battery is realized by adding PVC glue or protective armor at the bottom of the lower shell, and the protection mode has the following defects: the PVC protection picture layer can only prevent the small stone striking, meets sharp-pointed grit and sheetmetal and impales the PVC protection picture layer easily, leads to the casing to rust and puncture down. Secondly, the lower part of the shell is additionally provided with heavy protective armor, the mass of the whole vehicle is continuously increased, and abnormal sound is easily generated when no PVC coating collides with sand stones during the protective loading, so that the NVH performance of the whole vehicle is influenced.
The sealing mode of the existing power battery system is diversified, wherein the main stream is to use a foaming sealing material and bolt for fixing, and glue is applied to an upper shell and a lower shell and bolt is used for fixing. When above two kinds of scheme main shortcoming use expanded material sealed, when the casing damaged down at that time, because expanded material uses the gum to paste can't pull down the use again on the casing down, the casing damage can be taken sealed the pad and change simultaneously down. Resulting in increased customer maintenance costs. The sealant is used for sealing, time is needed for glue fixation, so that the production takt is reduced due to the use of the sealant for sealing, the sealant fails after-sale maintenance and cover removal, glue sealing needs to be performed again, and the after-sale maintenance cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a new energy automobile lithium ion battery energy memory, the damaged risk of casing appears in the purpose reduction battery package.
In order to realize the purpose, the utility model discloses the technical scheme who takes does: new energy automobile lithium ion battery energy memory, including the box assembly with set up in the inside module assembly of box assembly, the box assembly include down the shell assembly and with the last casing of shell assembly connection down, the box assembly still include with the shell assembly connects and is located the lower shell guard plate of shell assembly below down, sets up the foaming coating down on the shell guard plate, and the foaming coating is located down between shell assembly and the lower shell guard plate.
The lower shell protection plate is made of metal.
The material of the foaming coating is PVC foaming material.
The lower shell protection plate is connected with the lower shell assembly through a bolt.
And a sealing strip is arranged between the upper shell and the lower shell assembly.
The lower shell assembly is provided with a containing groove for containing the sealing strip.
The lithium ion battery energy storage device of the new energy automobile further comprises a low-voltage connection wiring harness assembly and a smoke sensor electrically connected with the low-voltage connection wiring harness assembly.
A thermal diffusion protection plate is arranged above the module assembly and located inside the box assembly.
The utility model discloses a new energy automobile lithium ion battery energy memory, through setting up the cooperation of casing guard plate and foaming coating down, can reduce the damaged risk of battery package emergence casing, because inside design has the foaming intermediate layer, plays the effect of buffering energy-absorbing for the casing under the road surface grit and the friction of cutting to pieces can not harm easily, and the maintenance cost is low moreover, has guaranteed the stability of the internal environment of system.
Drawings
The description includes the following figures, the contents shown are respectively:
fig. 1 is an explosion schematic diagram of the lithium ion battery energy storage device of the new energy automobile;
fig. 2 is an assembly schematic diagram of the lithium ion battery energy storage device of the new energy automobile;
FIG. 3 is a schematic view of the upper and lower case assemblies;
FIG. 4 is a partial schematic view of a housing sealing scheme;
FIG. 5 is a schematic diagram of a thermal management system assembly;
FIG. 6 is a schematic diagram of a battery management system architecture;
FIG. 7 is a schematic diagram of a module structure;
FIG. 8 is a schematic view of a high voltage copper bar structure;
FIG. 9 is a schematic view of a low voltage wiring harness configuration;
labeled as: 1. a quick charging interface; 2. a water inlet and outlet assembly; 3. an explosion-proof valve; 4. a box body fixing bracket; 5. a low pressure collection port; 6. a discharge interface; 7. an upper housing; 8. a thermal diffusion protection plate; 9. connecting a copper bar assembly at high voltage; 10. a low voltage connection harness assembly; 11. an MSD insurance assembly; 12. a battery management system; 13. a lower housing assembly; 14. a lower housing guard plate; 15. a foam coating; 16. a sealing strip; 17. a thermal management system assembly; 18. a module assembly; 19. a guard plate mounting hole; 20. a containing groove; 21. an internal flow passage of the thermal management system; 22. the quick insertion is into the water outlet joint.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the conception and technical solution of the present invention, and to facilitate its implementation.
As shown in fig. 1 to 9, the utility model provides a new energy automobile lithium ion battery energy memory, include the box assembly and set up in inside battery management system, the low pressure of box assembly and connect pencil assembly 10, high pressure connection copper bar assembly 9, module assembly 18 and thermal management system assembly 17. The box assembly includes casing assembly 13 down and the last casing 7 of being connected with casing assembly 13 down, and the box assembly still includes and is connected and be located the lower casing guard plate 14 of casing assembly 13 below down with casing assembly 13 down, sets up foaming coating 15 on the casing guard plate 14 down, and foaming coating 15 is located under casing assembly 13 and between the casing guard plate 14 down.
Specifically, as shown in fig. 1 to 3, the lower shell protection plate 14 is made of metal, and the foam coating 15 is made of PVC foam. The foam coating 15 is formed by spraying PVC foam onto the lower case guard 14. The 14 thick ordinary panel beating of using of shell guard plate down, surface spraying foaming coating 15, this protection assembly install down the casing bottom, have foaming coating 15 in the middle of lower casing and the guard plate, need not spraying PVC on the casing body down, and shell guard plate 14 passes through the bolt fastening down. The advantages of this scheme are as follows: first, when the pavement sand hits the lower housing guard plate 14, the normal operation of the battery system is not affected even if the guard plate is deformed or punctured. Secondly, because the interior design has the foaming coating 15, play the effect of buffering energy-absorbing for the road surface grit and the scratch can not damage lower casing easily. Thirdly, the maintenance cost is low, if the lower shell protection plate 14 is detached after the protection plate is damaged, the whole lower shell assembly 13 does not need to be replaced. Fourth, belong to interference fit between guard plate and the lower casing body, owing to there is foaming coating 15 inside, play the heat preservation effect to the battery package, the inside heat preservation thermal insulation material that need not to increase again of battery system, the cost of both practicing thrift guarantees the stability of the inside environment of system again.
As shown in fig. 1 to 3, the lower shell protection plate 14 is connected with the lower shell assembly 13 through a bolt, the lower shell protection plate 14 is detachable, and the lower shell protection plate 14 is convenient to replace after being damaged. In the present embodiment, the lower shell guard 14 is mounted on the lower shell assembly 13 by 6M 6 bolts, 6 guard mounting holes 19 are provided on the bottom surface of the lower shell assembly 13, and M6 bolts are screwed into the guard mounting holes 19.
As shown in fig. 1 and 2, the upper housing 7 is fixedly connected to the lower housing assembly 13, a sealing strip 16 is disposed between the upper housing 7 and the lower housing assembly 13, and the lower housing assembly 13 has a receiving groove 20 for receiving the sealing strip 16. The receiving groove 20 is a groove formed in the top surface of the lower housing assembly 13, the top surface of the lower housing assembly 13 is attached to the bottom surface of the upper housing 7, and the sealing strip 16 is used for sealing between the upper housing 7 and the lower housing assembly 13. The cross section of the sealing strip 16 is circular, the accommodating groove 20 is installed in a matching mode with the sealing strip 16, and the shell is sealed by compressing the circular sealing strip 16 through the fixing bolt. In this way, the sealing strip 16 is simple to install, efficient, reusable and low in maintenance cost for customers.
Due to the fact that the high-energy-density module is arranged in the battery pack, the temperature of the battery pack can exceed a system set safety threshold value in the process of acceleration or collision of the whole vehicle, and thermal runaway is caused. Therefore, as shown in fig. 1 and 2, the utility model discloses a new energy automobile lithium ion battery energy memory still includes low pressure connection pencil assembly 10 and the smoke transducer who is connected with low pressure connection pencil assembly 10 electricity, and module assembly 18's top sets up thermal diffusion guard plate 8, and thermal diffusion guard plate 8 is located inside the box assembly, and thermal diffusion guard plate 8 is located all module assembly 18's top. When the battery package takes place thermal runaway at that time, smoke transducer has smog to wrap up to the battery and produces, uploads vehicle control unit through battery management system, informs the customer early warning in advance, and the thermal diffusion guard plate 8 that sets up in module assembly 18 top plays the speed that reduces the intensity of a fire and spreads in addition, increases the customer time of fleing, plays the early warning and guarantees customer life safety effect.
In this embodiment, the battery management system is integrated with the battery control unit and the battery system distribution box to form an independent module. According to the scheme, the disordered wiring phenomenon in the battery pack is simplified, the whole pack is simple to arrange, and the scheme for after-sale maintenance is more adopted.
As shown in fig. 1 and 2, a peripheral plug-in unit is installed on the lower housing assembly 13, the peripheral plug-in unit includes a quick-charging port 1, a water inlet/outlet port assembly 2, an explosion-proof valve 3, a low-pressure collection port 5 and a discharge port 6, and all plug-in units are installed at the reserved positions of the corresponding housings according to selected corresponding standard components.
As shown in fig. 1 and 5, the thermal management system assembly 17 includes a liquid-cooled plate assembly, a liquid-cooled plate tube assembly, a water inlet/outlet, a pressure sensor, and a temperature sensor. The liquid cooling plate, the heat-conducting silica gel pad and the liquid cooling pipe are assembled in advance offline, the assembled heat management system is assembled into the lower shell assembly 13, corresponding pins and holes are reserved on the heat management system assembly 17 and the lower shell assembly 13 to be matched, and the installation accuracy between the heat management system assembly 17 and the lower shell assembly 13 is guaranteed.
As shown in fig. 1 and fig. 2, the high-voltage connection copper bar assembly 9 connects the module assembly 18, the battery management system, the quick charge interface 1, the discharge interface 6 and the MSD safety assembly 11 together. The low-voltage connection wiring harness assembly 10 correspondingly connects the acquisition end corresponding to the module assembly 18, the acquisition port corresponding to the battery management system and the low-voltage acquisition port 5 together.
The invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-described manner. Various insubstantial improvements are made by adopting the method conception and the technical proposal of the utility model; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.
Claims (8)
1. New energy automobile lithium ion battery energy memory includes the box assembly and sets up in the inside module assembly of box assembly, the box assembly include down the shell assembly and with the last casing that the shell assembly is connected down, its characterized in that: the box assembly still include with the shell assembly connects and is located the lower shell guard plate of shell assembly below down, sets up the foaming coating on the shell guard plate down, and the foaming coating is located between shell assembly and the lower shell guard plate down.
2. The lithium ion battery energy storage device of the new energy automobile of claim 1, wherein: the lower shell protection plate is made of metal.
3. The lithium ion battery energy storage device of the new energy automobile of claim 1, wherein: the material of the foaming coating is PVC foaming material.
4. The lithium ion battery energy storage device of the new energy automobile according to any one of claims 1 to 3, characterized in that: the lower shell protection plate is connected with the lower shell assembly through a bolt.
5. The lithium ion battery energy storage device of the new energy automobile according to any one of claims 1 to 3, characterized in that: and a sealing strip is arranged between the upper shell and the lower shell assembly.
6. The lithium ion battery energy storage device of the new energy automobile of claim 5, wherein: the lower shell assembly is provided with a containing groove for containing the sealing strip.
7. The lithium ion battery energy storage device of the new energy automobile according to any one of claims 1 to 3, characterized in that: the smoke sensor is electrically connected with the low-voltage connecting wire harness assembly.
8. The lithium ion battery energy storage device of the new energy automobile according to any one of claims 1 to 3, characterized in that: a thermal diffusion protection plate is arranged above the module assembly and located inside the box assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121309001.6U CN215008432U (en) | 2021-06-11 | 2021-06-11 | Lithium ion battery energy storage device of new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121309001.6U CN215008432U (en) | 2021-06-11 | 2021-06-11 | Lithium ion battery energy storage device of new energy automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215008432U true CN215008432U (en) | 2021-12-03 |
Family
ID=79127589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121309001.6U Expired - Fee Related CN215008432U (en) | 2021-06-11 | 2021-06-11 | Lithium ion battery energy storage device of new energy automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215008432U (en) |
-
2021
- 2021-06-11 CN CN202121309001.6U patent/CN215008432U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211203 |