CN206947420U - A kind of dynamic lithium battery module with pressure release division board - Google Patents
A kind of dynamic lithium battery module with pressure release division board Download PDFInfo
- Publication number
- CN206947420U CN206947420U CN201720462511.4U CN201720462511U CN206947420U CN 206947420 U CN206947420 U CN 206947420U CN 201720462511 U CN201720462511 U CN 201720462511U CN 206947420 U CN206947420 U CN 206947420U
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- CN
- China
- Prior art keywords
- division board
- positive pole
- pressure release
- cylinder manifold
- positive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 36
- 238000009413 insulation Methods 0.000 claims abstract description 14
- 230000017525 heat dissipation Effects 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 33
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 230000001681 protective Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001808 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
Abstract
The utility model discloses a kind of dynamic lithium battery module with pressure release division board, including positive battery box, negative battery box, multiple cylindrical electrical cores in parallel, positive pole parallel connection cylinder manifold and a pressure release division board, wherein cylindrical electrical core is arranged between positive battery box and negative battery box, and positive pole parallel connection cylinder manifold is arranged on positive battery box lower end；Pressure release division board is arranged on the lower section of positive pole parallel connection cylinder manifold, and pressure release division board is being provided with multiple boss close to the side of positive pole parallel connection cylinder manifold, boss is bonded assembling with positive pole parallel connection cylinder manifold, and forms heat dissipation channel between pressure release division board and positive pole parallel connection cylinder manifold.The high-temperature insulation piece and division board of negative pole end installation, cause negative pole closed, form axial isolation, when thermal runaway occurs, heat can not discharge from negative pole direction, heat can only discharge along the heat dissipation channel that positive extreme direction is formed by pressure relief plate, improve the overall protective capacities to thermal runaway state axial direction.
Description
Technical field
Technical field of lithium batteries is the utility model is related to, particularly relates to a kind of power lithium battery with pressure release division board
Pond module.
Background technology
Existing power lithium battery cell system enters by the way of more battery cores compose in parallel module, Multi-stage module series connection mostly
Row battery is in groups.Battery core in the market is mainly LiFePO4 battery core and ternary lithium cell.Electrokinetic cell installing space by
Restricted to vehicle, and ternary lithium cell energy density is high, good cycle, can more meet that electric automobile is wanted for course continuation mileage
Ask.It is more and more extensive in compact car and passenger car market, the application of ternary lithium cell.
But with ternary lithium cell application it is more and more extensive, it is corresponding the problem of also constantly expose, lithium battery occur in
Short circuit, external impact etc. cause thermal runaway inevitable, therefore how to prevent thermal runaway from extending and spreading particularly significant.Work as battery core
There is thermal runaway or internal short-circuit, internal pressure raises, and the electrolyte in battery core sprays and produces more than 400 DEG C of high temperature.This part
The narrow and small confined space that heat is accumulated in inside battery module, the thermal runaway extension around between battery core and adjacent block can be caused
Reaction.
Therefore, inventor of the present utility model needs a kind of new technology of design badly to improve its problem.
Utility model content
The utility model aims to provide a kind of dynamic lithium battery module with pressure release division board, is worked as with solving prior art
In to thermal runaway extension reply it is insufficient the problem of.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of dynamic lithium battery module with pressure release division board, including：Positive battery box, negative battery box, it is multiple simultaneously
Cylindrical electrical core, positive pole parallel connection cylinder manifold and a pressure release division board for connection, wherein the cylindrical electrical core is arranged on the positive battery
Between box and the negative battery box, the positive pole parallel connection cylinder manifold is arranged on the positive battery box lower end；The pressure release every
From the lower section that plate is arranged on the positive pole parallel connection cylinder manifold, and the pressure release division board is close to the positive pole parallel connection cylinder manifold
Side be provided with multiple boss, the boss is bonded assembling with the positive pole parallel connection cylinder manifold, and in the pressure release division board and
Heat dissipation channel is formed between the positive pole parallel connection cylinder manifold.
Preferably, in addition to negative pole parallel connection cylinder manifold, high-temperature insulation piece and division board, the negative pole welding conducting strip,
The high-temperature insulation piece and the division board are arranged on the negative battery box.
Preferably, the positive battery box leaves positive pole perforate at the positive pole of the cylindrical electrical core, in positive pole tapping
Positive pole welding conducting strip is provided with, positive pole welding conducting strip is designed with fusing in the positive pole opening position of every cylindrical electrical core
Extreme ear structure, the positive pole of each cylindrical electrical core is realized with positive pole welding conducting strip to be connected.
Preferably, the negative battery box leaves negative pole perforate at the negative pole of the cylindrical electrical core, in negative pole tapping
The negative pole welding conducting strip is provided with, the negative pole welding conducting strip is all set in the negative pole opening position of every cylindrical electrical core
There is fusing extreme ear structure, the negative pole of each cylindrical electrical core is realized with negative pole welding conducting strip to be connected.
Preferably, the positive pole parallel connection cylinder manifold and positive pole welding conducting strip are integrally welded, and the positive pole
Cylinder manifold in parallel is provided with perforate in the cylindrical electrical core opening position.
Preferably, the negative pole parallel connection cylinder manifold and negative pole welding conducting strip are integrally welded, and the negative pole
Cylinder manifold in parallel is provided with perforate in the cylindrical electrical core opening position.
Preferably, the maximum height of the boss is 6mm, and the position of the boss and the position of the cylindrical electrical core
It is staggered.
Using above-mentioned technical proposal, the utility model comprises at least following beneficial effect：
1. the dynamic lithium battery module described in the utility model with pressure release division board, pressure release division board with boss with
The fitting of positive pole parallel connection cylinder manifold is assembled to form heat dissipation channel, the high-temperature insulation piece and division board of negative pole end installation, causes negative pole
It is closed, axial isolation is formed, when thermal runaway occurs, heat can not discharge from negative pole direction, and heat can only be along positive extreme direction
The heat dissipation channel formed by pressure relief plate is discharged, and improves the overall protective capacities to thermal runaway state axial direction.
2. the dynamic lithium battery module described in the utility model with pressure release division board, positive pole welds the fusing of conducting strip
Lug is welded with battery core positive pole, and when excessively stream occurs in battery core, fusing lug moment fusing, protection electricity can be played by disconnecting battery core connection
The effect of core.
Brief description of the drawings
Fig. 1 is the structural representation of the dynamic lithium battery module described in the utility model with pressure release division board；
Fig. 2 is the decomposing schematic representation of the dynamic lithium battery module described in the utility model with pressure release division board；
Fig. 3 a are the structural representation that positive pole described in the utility model welds conducting strip；
Fig. 3 b are Fig. 3 a partial enlarged drawing；
Fig. 4 a are the structural representation of pressure release division board described in the utility model；
Fig. 4 b are Fig. 4 a partial enlarged drawing；
Fig. 5 is the schematic view of the mounting position of high-temperature insulation piece described in the utility model and division board；
Fig. 6 a are the welding schematic diagram that positive pole parallel connection cylinder manifold described in the utility model welds conducting strip with positive pole；
Fig. 6 b are the decomposing schematic representation that positive pole parallel connection cylinder manifold described in the utility model welds conducting strip with positive pole；
Fig. 7 a are the welding schematic diagram that negative pole parallel connection cylinder manifold described in the utility model welds conducting strip with negative pole；
Fig. 7 b are the decomposing schematic representation that negative pole parallel connection cylinder manifold described in the utility model welds conducting strip with negative pole.
Fig. 8 is the cascaded structure schematic diagram of the dynamic lithium battery module described in the utility model with pressure release division board；
Fig. 9 is the cascaded structure schematic diagram of the dynamic lithium battery module described in the utility model with pressure release division board
(containing temperature control device).
Wherein：1- pressure releases division board, 2- positive pole parallel connections cylinder manifold, 3- positive poles welding conducting strip, 4- positive batteries box, 5- circles
Post battery core, 6- boss, 7- negative batteries box, 8- negative poles welding conducting strip, 9- negative pole parallel connections cylinder manifold, 10- high-temperature insulations piece,
11- division boards, 12- are flexible coupling bus-bar, 13- temperature control devices, and 14- carries the dynamic lithium battery module of pressure release division board, and 15- melts
Disconnected extreme ear structure.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
As shown in Figures 1 to 7, to meet a kind of dynamic lithium battery module with pressure release division board of the present utility model
14, including：Positive battery box 4, negative battery box 7, multiple cylindrical electrical cores 5 in parallel, positive pole parallel connection cylinder manifold 2 and a pressure release every
From plate 1, wherein the cylindrical electrical core 5 is arranged between the positive battery box 4 and the negative battery box 7, the positive pole is simultaneously
Connection cylinder manifold 2 is arranged on the lower end of positive battery box 4；The pressure release division board 1 is arranged on the positive pole parallel connection cylinder manifold 2
Lower section, and the pressure release division board 1 is provided with multiple boss 6, the boss in the side close to the positive pole parallel connection cylinder manifold 2
6 are bonded assembling, and the shape between the pressure release division board 1 and the positive pole parallel connection cylinder manifold 2 with the positive pole parallel connection cylinder manifold 2
Into heat dissipation channel.
Preferably, in addition to negative pole parallel connection cylinder manifold 9, high-temperature insulation piece 10 and division board 11, the negative pole welding are led
Electric piece 8, the high-temperature insulation piece 10 and the division board 11 are arranged on the negative battery box 7.
Preferably, the positive battery box 4 leaves positive pole perforate at the positive pole of the cylindrical electrical core 5, in positive pole perforate
Place is provided with positive pole welding conducting strip 3, and positive pole welding conducting strip 3 is all set in the positive pole opening position of every cylindrical electrical core 5
There is fusing extreme ear structure 15, the positive pole of each cylindrical electrical core 5 is realized with positive pole welding conducting strip 3 to be connected.
Preferably, the negative battery box 7 leaves negative pole perforate at the negative pole of the cylindrical electrical core 5, in negative pole perforate
Place is provided with the negative pole welding conducting strip 8, and the negative pole welds conducting strip 8 in the negative pole position of every cylindrical electrical core 5
Place is designed with the extreme ear structure that fuses, and the negative pole of each cylindrical electrical core 5 is realized with negative pole welding conducting strip 8 to be connected
Connect.
Preferably, the positive pole parallel connection cylinder manifold 2 and the positive pole welding conducting strip 3 it is integrally welded, and it is described just
Cylinder manifold 2 extremely in parallel is provided with perforate in the opening position of cylindrical electrical core 5.
Preferably, the negative pole parallel connection cylinder manifold 9 and negative pole welding conducting strip 8 are integrally welded and described negative
Cylinder manifold 9 extremely in parallel is provided with perforate in the opening position of cylindrical electrical core 5.
Preferably, the maximum height of the boss 6 is 6mm, and the position of the boss 6 and the cylindrical electrical core 5
Position is staggered.
Preferably, cylindrical electrical core 5 is equipped in positive battery box 4 and negative battery box 7, is engaged by snap fit.Positive pole welds
Conducting strip 3 and positive pole parallel connection cylinder manifold 2 are integrally welded, then lug and the weldering of the positive pole of cylindrical electrical core 5 of conducting strip 3 are welded by positive pole
Connect.Negative pole welds conducting strip 8 and negative pole parallel connection cylinder manifold 9 is integrally welded, then the lug and cylinder of conducting strip 8 are welded by negative pole
The negative pole of battery core 5 welds.Pressure release division board 1 is close to positive pole parallel connection cylinder manifold 2 and assembled, and high-temperature insulation piece 10 is close to negative pole remittance in parallel
Flowing plate 9 is assembled, and division board 11 is close to high-temperature insulation piece 10 and assembled.
In actual applications, as shown in Figure 8 and Figure 9, multiple lithium battery groups are connected by way of series connection.Preferably, often
Two lithium battery groups are converged positive pole parallel connection by bus-bar (be preferably flexible coupling bus-bar 12, and its structure is as shown in Figure 9)
Flowing plate 2 and the negative pole parallel connection cylinder manifold 9 are connected in series；The lithium battery group is with a temperature control device 13 (preferably, as schemed
Shown in 9, the temperature control device 13 is arranged on the side heat-conducting plate, and it includes but is not limited to PTC heaters, heating plate adds
It is thermal, liquid heating, coolant cooling device, fan cooling apparatus used) connection.Multiple power with pressure release division board
Lithium battery module 14 is connected in series, its high pressure connected mode：The bus-bar 12 that is flexible coupling confluxes positive pole parallel connection described in adjacent module
The upper end bending of plate 2 and the upper end bending of negative pole parallel connection cylinder manifold 9 are connected in series by way of welding or fastened by screw, are more had
The reliability that ensure that high pressure connection of effect.Lithium battery group be connected by battery core heat conduction isolating device with outside temperature control device 13 come
Control the temperature of battery core, it is ensured that battery core normal work under extreme temperature environment.
The operation principle of the present embodiment is：The design of pressure release division board 1 carries multiple boss 6, such as Fig. 4 a and Fig. 4 b
Shown, the maximum height 6mm of boss 6, the position and the position of cylindrical electrical core 5 of boss 6 are staggered, i.e. the position of cylindrical electrical core 5
The position of the hollow out of face pressure release division board 1, enough spaces just so are left to heat release, pressure release division board 1 also has isolation
Effect, to thermal shock play a part of alleviate, stop together with the high-temperature insulation piece 10 and division board 11 of previous unit negative pole
The impact of heat.
The design of pressure release division board 1 carries multiple boss 6, and boss 6 is bonded to be assembled to form to radiate with positive pole parallel connection cylinder manifold 2 to be led to
Road, the high-temperature insulation piece 10 and division board 11 of negative pole end installation, causes module negative closed, forms axial isolation.Work as electricity
When thermal runaway occurs for core, module negative has high-temperature resistance insulation paper and isolation steel plate isolation to stop that battery core has protection aluminum pipe parcel, electricity
Solving liquid, rapidly the positive extreme direction of slave module sprays, and the one side of pressure release division board 1 can separate impact of the thermal-flame to adjacent block,
On the other hand high-temperature flue gas can be made to be exported rapidly from heat dissipation channel.Avoid amount of heat and be gathered in inside modules, cause week
The chain reaction of battery core, and the thermal shock to front and rear module are enclosed, extends situation so as to form violent thermal runaway.Improve
The overall protective capacities to thermal runaway state axial direction.
Positive pole parallel connection cylinder manifold 2 and positive pole welding conducting strip 3 and battery core are integrally welded, negative pole also same positive pole, ensure
The reliability that multiple power lithium battery modules connect in high pressure.Dynamic lithium battery module 14 with pressure release division board is again by soft
Connection bus-bar 12 connects the adjacent dynamic lithium battery module 14 with pressure release division board, i.e., the positive pole of previous module is in parallel to converge
The upper end of flowing plate 2 and the upper end of negative pole parallel connection cylinder manifold 9 of latter module are connected in series, and form relatively reliable high pressure connection.
The fusing lug 15 of positive pole welding conducting strip 3 welds with battery core positive pole, and the fusing lug 15 allows in certain limit
Electric current by without generate heat, when there is excessively stream in battery core, fusing the moment of lug 15 fusing, disconnect battery core connection can play protection
The effect of battery core, prevent battery core thermal runaway caused by excessively stream.Negative pole is same, does not repeat.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (7)
- A kind of 1. dynamic lithium battery module with pressure release division board, it is characterised in that including：Positive battery box, negative battery Box, multiple cylindrical electrical cores in parallel, positive pole parallel connection cylinder manifold and a pressure release division board, wherein the cylindrical electrical core be arranged on it is described Between positive battery box and the negative battery box, the positive pole parallel connection cylinder manifold is arranged on the positive battery box lower end；Institute State the lower section that pressure release division board is arranged on the positive pole parallel connection cylinder manifold, and the pressure release division board close to the positive pole simultaneously The side of connection cylinder manifold is provided with multiple boss, and the boss is bonded assembling with the positive pole parallel connection cylinder manifold, and in the pressure release Heat dissipation channel is formed between division board and the positive pole parallel connection cylinder manifold.
- 2. the dynamic lithium battery module of pressure release division board is carried as claimed in claim 1, it is characterised in that：Also include negative pole simultaneously Join cylinder manifold, high-temperature insulation piece and division board, negative pole welding conducting strip, the high-temperature insulation piece and the division board It is arranged on the negative battery box.
- 3. the dynamic lithium battery module of pressure release division board is carried as claimed in claim 2, it is characterised in that：The positive battery Box leaves positive pole perforate at the positive pole of the cylindrical electrical core, and positive pole tapping is provided with positive pole welding conducting strip, the positive pole Welding conducting strip is designed with the extreme ear structure that fuses, each cylindrical electrical core in the positive pole opening position of every cylindrical electrical core Positive pole with the positive pole welding conducting strip realize connect.
- 4. the dynamic lithium battery module of pressure release division board is carried as claimed in claim 2, it is characterised in that：The negative battery Box leaves negative pole perforate at the negative pole of the cylindrical electrical core, and negative pole tapping is provided with the negative pole welding conducting strip, institute State negative pole welding conducting strip and be designed with the extreme ear structure that fuses, each circle in the negative pole opening position of every cylindrical electrical core The negative pole of post battery core is realized with negative pole welding conducting strip and connected.
- 5. the dynamic lithium battery module of pressure release division board is carried as claimed in claim 3, it is characterised in that：The positive pole is in parallel Cylinder manifold and positive pole welding conducting strip are integrally welded, and the positive pole parallel connection cylinder manifold is in the cylindrical electrical core position Place is provided with perforate.
- 6. the dynamic lithium battery module of pressure release division board is carried as claimed in claim 4, it is characterised in that：The negative pole is in parallel Cylinder manifold and negative pole welding conducting strip are integrally welded, and the negative pole parallel connection cylinder manifold is in the cylindrical electrical core position Place is provided with perforate.
- 7. the dynamic lithium battery module with pressure release division board as described in claim 1-6 is any, it is characterised in that：It is described convex The maximum height of platform is 6mm, and the position of the boss and the position of the cylindrical electrical core are staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720462511.4U CN206947420U (en) | 2017-04-28 | 2017-04-28 | A kind of dynamic lithium battery module with pressure release division board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720462511.4U CN206947420U (en) | 2017-04-28 | 2017-04-28 | A kind of dynamic lithium battery module with pressure release division board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206947420U true CN206947420U (en) | 2018-01-30 |
Family
ID=61359894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720462511.4U Active CN206947420U (en) | 2017-04-28 | 2017-04-28 | A kind of dynamic lithium battery module with pressure release division board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206947420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166993A (en) * | 2018-09-11 | 2019-01-08 | 华霆（合肥）动力技术有限公司 | Battery modules and power supply device |
-
2017
- 2017-04-28 CN CN201720462511.4U patent/CN206947420U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166993A (en) * | 2018-09-11 | 2019-01-08 | 华霆（合肥）动力技术有限公司 | Battery modules and power supply device |
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