CN215988920U - High-efficient solid state battery module liquid cooling device - Google Patents
High-efficient solid state battery module liquid cooling device Download PDFInfo
- Publication number
- CN215988920U CN215988920U CN202121710442.7U CN202121710442U CN215988920U CN 215988920 U CN215988920 U CN 215988920U CN 202121710442 U CN202121710442 U CN 202121710442U CN 215988920 U CN215988920 U CN 215988920U
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- Prior art keywords
- liquid
- cooling
- box body
- electric core
- cooling liquid
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- 239000007788 liquid Substances 0.000 title claims abstract description 66
- 238000001816 cooling Methods 0.000 title claims abstract description 30
- 239000007787 solid Substances 0.000 title claims description 7
- 239000000110 cooling liquid Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000003292 glue Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002826 coolant Substances 0.000 description 15
- 238000004146 energy storage Methods 0.000 description 8
- 239000000443 aerosol Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 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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Abstract
A high-efficiency liquid cooling device for a solid-state battery module relates to the technical field of battery modules. The structure of the device comprises the following components: the electric core group is fixedly arranged in the sealing box body, cooling liquid is arranged in the sealing box body, the electric core group is immersed in the cooling liquid, and the liquid level of the cooling liquid is located 0.5cm below the electric core group pole; the outer wall of the sealed box body is provided with a cooling liquid inlet and a cooling liquid outlet; the BMS is fixedly arranged on the outer side wall of the sealed box body and is electrically connected with the cell assembly; the BMS is connected with the temperature measuring device; the fire alarm device is fixedly arranged at the top end of the sealed box body. The device has the advantages that: the temperature uniformity of the electric core group can be better through the device: the device is simpler to manufacture and has higher yield; the use safety is ensured through the cooling liquid and the fire fighting device, and the manufacturing cost is reduced.
Description
Technical Field
The utility model relates to the technical field of battery modules, in particular to a high-efficiency liquid cooling device for a solid-state battery module.
Background
With the continuous development of lithium battery technology and the continuous reduction of cost, the application of lithium batteries is more and more extensive, and large-scale energy storage power stations are more and more, but the problem of heating of batteries is always a pain point which puzzles the large-scale energy storage power stations. Some manufacturers regulate the indoor temperature of the battery by arranging an air conditioner so as to control the temperature of the battery core, but the battery core is positioned in the battery pack, cold air cannot directly reach the surface of the battery core, and the plurality of battery cores in the battery pack are gathered together, so that the heat dissipation is uneven, the middle is hot, the periphery is cold, and the temperature difference of the battery core is large; or each battery pack is provided with an independent fan for heat dissipation, and the fan belongs to a wearing part, so that the failure rate is high after long-term operation, and the replacement is troublesome; a plurality of fans in the system have higher operating power consumption, so that the overall efficiency of the energy storage system is reduced; some manufacturers adopt liquid cooling for heat dissipation, lay a liquid cooling pipeline in the battery pack, and take away the heat of the battery through the flowing of the heat conduction material in the pipeline, so that the scheme has the advantages of complex structure and higher cost.
SUMMERY OF THE UTILITY MODEL
In order to realize the function of efficiently cooling the internal temperature of the solid-state battery, the utility model adopts the following technical scheme:
a high-efficiency liquid cooling device for a solid-state battery module comprises a battery cell pack, a sealed box body, a BMS and a fire alarm device; the electric core group is fixedly arranged in the sealing box body, cooling liquid is arranged in the sealing box body, the electric core group is immersed in the cooling liquid, and the liquid level of the cooling liquid is located 0.5cm below the electric core group pole; the outer wall of the sealed box body is provided with a cooling liquid inlet and a cooling liquid outlet; the BMS is fixedly arranged on the outer side wall of the sealed box body and is electrically connected with the cell assembly; the BMS is connected with the temperature measuring device; the fire alarm device is fixedly arranged at the top end of the sealed box body.
Specifically, the cooling liquid is fluorinated liquid or transformer oil or pure water. The solution has low conductivity, quick heat transfer effect, safe use and quick cooling effect.
Specifically, the cooling liquid inlet and the cooling liquid outlet are arranged on the same side wall of the sealed box body. Arranged on the same side wall, has the advantage of convenient use.
Specifically, the alarm device is a micro hot air glue melting device. Miniature steam glue melting device occupies smallly and has the function of putting out a fire the fire control, when the conflagration appears in the electric core group, can effectually carry out the alarm through steam glue melting device and carry out the function that the fire control was put out a fire, effectual protection electric core group.
The electric core assembly pole is characterized by further comprising a liquid level sealing plate, a plurality of fixing holes are formed in the liquid level sealing plate, the electric core assembly pole penetrates through the fixing holes, the liquid level sealing plate is arranged above the liquid level of the cooling liquid, and the side wall of the liquid level sealing plate is connected with the sealing box body.
In summary, the device of the present invention has the following advantages:
the cell temperature consistency is better: at present conventional liquid cooling way, the bottom of electric core is refrigerated and heated through pipeline, aluminum plate and heat conduction pad to the coolant liquid, and electric core uniformity hardly keeps in stricter requirement scope for a long time. In the new technology, liquid can be coated on each surface of a single battery cell (except for a pole column, the pole column dissipates heat through heat conduction inside the battery), namely the battery cell is put into the liquid, and the temperature does not have large amplitude variation;
secondly, the manufacture is simpler: the set of aluminum alloy shell replaces the pipeline, the cooling plate, the heat conducting pad and the module metal plate shell in the module, and can be used as an assembly jig, so that the assembly steps are reduced, and the production efficiency is higher;
the income is higher: the new technology ensures that the working temperature of the battery cell is kept in a strict range for a long time, the temperature consistency is ensured, the charging and discharging efficiency of the system is higher, the service life is longer, and the benefit is better;
the system is safer: because the working temperature of the battery core can be kept highly consistent for a long time, and the sensitivity of the solid-state battery to the temperature is slightly low, the battery core and the system are safer, and the advantages are more obvious in high-rate occasions. In addition, the novel solid-state battery module is internally provided with the hot aerosol fire-fighting device, so that the novel solid-state battery module has the functions of autonomous detection and autonomous release, and energy storage safety accidents are killed in a minimum range;
the stability is higher: the on-site conventional liquid cooling method is implemented by two professional companies for module design and liquid cooling board design, and in the new technology, pipelines do not need to be embedded in the module, and all designs in the module can be completed by one company;
sixthly, the cost is lower: the material is reduced, and energy density of the energy storage system is improved, and cost is reduced.
Drawings
FIG. 1 is a front cross-sectional view of a liquid cooling apparatus for a high efficiency solid state battery module;
FIG. 2 is a schematic diagram of a cover of a liquid cooling device of a high-efficiency solid-state battery module;
FIG. 3 is a top view of a liquid cooling apparatus for a high efficiency solid state battery module;
reference numerals: 1 an insulating material; 2, cooling liquid; 3, a liquid level sealing plate; 4, fixing parts; 5, micro hot aerosol; 6, sealing the box body; 7, a battery core group; 8, a cooling liquid outlet; 9 cooling liquid inlet.
Detailed Description
The present invention is further described below with reference to fig. 1 to 3.
A high-efficient solid state battery module liquid cooling device, includes electric core group 7, seal box 6, BMS, miniature steam glue-melting device 5. The battery core group 7 is fixedly installed in the sealing box body 6, and the battery core pole is upward. In order to prevent the electric leakage of the battery cell, the sealing box body 6 is coated with an insulating material 1. Because present conventional liquid cooling way is through passing through the pipeline with the coolant liquid, aluminum plate, the bottom that electric core was given to the heat conduction pad refrigerates and heats, the effect to the comprehensive cooling of electric core is limited like this, so can both cool down in order to realize to every face of single electric core, so be provided with coolant liquid 2 inside sealed box 6, coolant liquid 2 is for fluoridizing liquid or transformer oil or pure water, electric core group 7 is soaked in coolant liquid 2, the coolant liquid level is located 0.5cm below the 7 utmost point posts of electric core group, be equipped with the coolant liquid import on the 6 lateral walls of sealed box, coolant liquid outlet 8, and the coolant liquid import, coolant liquid outlet 8 sets up on the same lateral wall of sealed box 6, can carry out the circulation change with the coolant liquid in the sealed box through coolant liquid import and coolant liquid outlet 8, make the temperature around electric core group 7 keep invariable always. In order to prevent that liquid from splashing and polluting utmost point post, so fixed mounting has liquid level shrouding on electric core, and the liquid level shrouding is insulating material, has seted up a plurality of fixed orificess on the liquid level shrouding, and 7 utmost point posts of electric core group pass fixed orifices and liquid level shrouding and set up on the coolant liquid level, and liquid level shrouding lateral wall is articulated through L type hinge with seal box 6, the gap between 7 utmost point posts of fixed orifices and electric core group to and liquid level shrouding seals with waterproof insulating glue with seal box inner wall connection's gap. Guarantee like this that battery utmost point post can not be contaminated, the battery module possesses very high maintainability, and when certain cluster electric core had the problem, direct change problem electric core that corresponds can, need not scrap whole module. BMS fixed mounting is on 6 lateral walls of sealed box, BMS and the 7 electric connection of electric core group. In order to prevent the fire caused by the short circuit of the battery cell, a miniature hot aerosol device 5 is respectively added on the left side and the right side of the inner wall of the seal box, and the hot aerosol automatic fire extinguishing device comprises a shell, a starter, an aerosol generating agent, a mounting bracket, mounting screws and the like. Through installing support, mounting screw with 5 fixed mounting of miniature thermosol device on 6 inside walls of seal box, when the conflagration breaing out, the starter can detect heat source temperature, miniature thermosol then directly spout aerosol and carry out submerged fire extinguishing, can kill the energy storage incident in minimumly like this, reduce accident influence and cost.
As can be seen from the above description, the device has the following advantages:
the cell temperature consistency is better: at present conventional liquid cooling way, the bottom of electric core is refrigerated and heated through pipeline, aluminum plate and heat conduction pad to the coolant liquid, and electric core uniformity hardly keeps in stricter requirement scope for a long time. In the new technology, liquid can be coated on each surface of a single battery cell (except for a pole column, the pole column dissipates heat through heat conduction inside the battery), namely the battery cell is put into the liquid, and the temperature does not have large amplitude variation;
secondly, the manufacture is simpler: the set of aluminum alloy shell replaces the pipeline, the cooling plate, the heat conducting pad and the module metal plate shell in the module, and can be used as an assembly jig, so that the assembly steps are reduced, and the production efficiency is higher;
the income is higher: the new technology ensures that the working temperature of the battery cell is kept in a strict range for a long time, the temperature consistency is ensured, the charging and discharging efficiency of the system is higher, the service life is longer, and the benefit is better;
the system is safer: because the working temperature of the battery core can be kept highly consistent for a long time, and the sensitivity of the solid-state battery to the temperature is slightly low, the battery core and the system are safer, and the advantages are more obvious in high-rate occasions. In addition, the novel solid-state battery module is internally provided with the hot aerosol fire-fighting device, so that the novel solid-state battery module has the functions of autonomous detection and autonomous release, and energy storage safety accidents are killed in a minimum range;
the stability is higher: the on-site conventional liquid cooling method is implemented by two professional companies for module design and liquid cooling board design, and in the new technology, pipelines do not need to be embedded in the module, and all designs in the module can be completed by one company;
sixthly, the cost is lower: the material is reduced, and energy density of the energy storage system is improved, and cost is reduced.
It should be understood that the detailed description of the utility model is merely illustrative of the utility model and is not intended to limit the utility model to the specific embodiments described. It will be appreciated by those skilled in the art that the present invention may be modified or substituted equally as well to achieve the same technical result; as long as the use requirements are met, the method is within the protection scope of the utility model.
Claims (5)
1. A high-efficiency liquid cooling device for a solid-state battery module is characterized by comprising a battery cell pack, a sealed box body, a BMS and a fire alarm device; the electric core group is fixedly arranged in the sealing box body, cooling liquid is arranged in the sealing box body, the electric core group is immersed in the cooling liquid, and the liquid level of the cooling liquid is located 0.5cm below the electric core group pole; a cooling liquid inlet and a cooling liquid outlet are formed in the outer wall of the sealed box body; the BMS is fixedly arranged on the outer side wall of the sealed box body and is electrically connected with the battery cell pack; the BMS is connected with a temperature measuring device; the fire alarm device is fixedly arranged at the top end of the sealed box body.
2. The liquid cooling apparatus for solid state battery module as defined in claim 1, wherein the cooling liquid is fluorinated liquid or transformer oil or pure water.
3. The liquid cooling apparatus for solid state battery module as defined in claim 1, wherein the cooling inlet and the cooling outlet are disposed on a same side wall of the sealed housing.
4. The liquid cooling device for high-efficiency solid-state battery modules according to claim 1, wherein the alarm device is a micro hot gas glue melting device.
5. The liquid cooling device for the high-efficiency solid-state battery module as claimed in claim 1, further comprising a liquid level sealing plate, wherein the liquid level sealing plate is provided with a plurality of fixing holes, the electric core assembly poles penetrate through the fixing holes, the liquid level sealing plate is arranged above the liquid level of the cooling liquid, and the side wall of the liquid level sealing plate is connected with the sealing box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121710442.7U CN215988920U (en) | 2021-07-26 | 2021-07-26 | High-efficient solid state battery module liquid cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121710442.7U CN215988920U (en) | 2021-07-26 | 2021-07-26 | High-efficient solid state battery module liquid cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215988920U true CN215988920U (en) | 2022-03-08 |
Family
ID=80515008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121710442.7U Expired - Fee Related CN215988920U (en) | 2021-07-26 | 2021-07-26 | High-efficient solid state battery module liquid cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215988920U (en) |
-
2021
- 2021-07-26 CN CN202121710442.7U patent/CN215988920U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220308 |
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| CF01 | Termination of patent right due to non-payment of annual fee |