CN206834288U - A kind of dynamic lithium battery module with battery core heat conduction isolating device - Google Patents
A kind of dynamic lithium battery module with battery core heat conduction isolating device Download PDFInfo
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- CN206834288U CN206834288U CN201720462512.9U CN201720462512U CN206834288U CN 206834288 U CN206834288 U CN 206834288U CN 201720462512 U CN201720462512 U CN 201720462512U CN 206834288 U CN206834288 U CN 206834288U
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- battery core
- isolating device
- heat conduction
- negative pole
- positive pole
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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
The utility model discloses a kind of dynamic lithium battery module with battery core heat conduction isolating device, including multiple cylindrical electrical cores in parallel and battery core heat conduction isolating device, wherein described battery core heat conduction isolating device includes upper heat-conducting plate, protecting tube, lower heat-conducting plate and side heat-conducting plate, the protecting tube is arranged between the upper heat-conducting plate, the lower heat-conducting plate and the side heat-conducting plate, and the cylindrical electrical core is arranged in the protecting tube.Cylindrical electrical core is fixed in battery core heat conduction isolating device, and every cylindrical electrical core is all separated in independent space by battery core heat conduction isolating device, and battery core heat conduction isolating device carries out conduction absorption to caused heat in the battery core course of work；Meanwhile every battery core parcel isolation is improved the overall protective capacities to thermal runaway state radial direction by battery core heat conduction isolating device, effectively prevents the thermal shock to battery core in parallel and thermal runaway to extend.
Description
Technical field
Technical field of lithium batteries is the utility model is related to, is particularly related to a kind of dynamic with battery core heat conduction isolating device
Power lithium battery 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 battery core heat conduction isolating device, existing to solve
The problem of insufficient to thermal runaway extension reply among technology.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of dynamic lithium battery module with battery core heat conduction isolating device, including：Multiple cylindrical electrical cores and electricity in parallel
Core heat conduction isolating device, wherein the battery core heat conduction isolating device includes upper heat-conducting plate, protecting tube, lower heat-conducting plate and side heat conduction
Plate, the protecting tube are arranged between the upper heat-conducting plate, the lower heat-conducting plate and the side heat-conducting plate, the cylindrical electrical core
It is arranged in the protecting tube.
Preferably, in addition to positive battery box, negative battery box, positive pole welding conducting strip, negative pole weld conducting strip, positive pole
Cylinder manifold, negative pole parallel connection cylinder manifold, high-temperature insulation piece and division board in parallel, wherein the cylindrical electrical core and the battery core heat conduction
Isolating device is arranged between the positive battery box and the negative battery box, and the positive pole welding conducting strip is arranged on described
On positive battery box, negative pole welding conducting strip, the high-temperature insulation piece and the division board are arranged on the negative electricity
On the box of pond.
Preferably, the positive battery box leaves positive pole perforate at the positive pole of the cylindrical electrical core, in positive pole tapping
The positive pole welding conducting strip is provided with, the positive pole welding conducting strip is all set in the positive pole opening position of every cylindrical electrical core
There is fusing extreme ear structure, the positive pole of each cylindrical electrical core is realized with positive pole welding conducting strip to be connected.
Preferably, in addition to a positive pole parallel connection cylinder manifold, the positive pole parallel connection cylinder manifold weld conducting strip with the positive pole
It is integrally welded, and the positive pole parallel connection cylinder manifold is provided with perforate in the cylindrical electrical core opening position.
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, in addition to a negative pole parallel connection cylinder manifold, the negative pole parallel connection cylinder manifold weld conducting strip with the negative pole
It is integrally welded, and the negative pole parallel connection cylinder manifold is provided with perforate in the cylindrical electrical core opening position.
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 battery core heat conduction isolating device, cylindrical electrical core are fixed on
In battery core heat conduction isolating device, every cylindrical electrical core is all separated in independent space by battery core heat conduction isolating device, and battery core is led
Device is thermally isolated conduction absorption is carried out to caused heat in the battery core course of work；Meanwhile battery core heat conduction isolating device is by every
Battery core parcel isolation improves the overall protective capacities to thermal runaway state radial direction, effectively prevents and the heat of battery core in parallel is rushed
Hit and thermal runaway extends.
2. the dynamic lithium battery module described in the utility model with battery core heat conduction isolating device, positive pole welding conducting strip
Fusing lug and battery core positive pole weld, when excessively stream occurs in battery core, fusing lug moment fusing, disconnecting battery core connection can play
Protect the effect of battery core.
Brief description of the drawings
Fig. 1 is the structural representation of the dynamic lithium battery module described in the utility model with battery core heat conduction isolating device
Figure；
Fig. 2 is the exploded pictorial of the dynamic lithium battery module described in the utility model with battery core heat conduction isolating device
Figure；
Fig. 3 is the decomposing schematic representation of battery core heat conduction isolating device described in the utility model；
Fig. 4 a are the structural representation that positive pole described in the utility model welds conducting strip；
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 that the cascaded structure of the dynamic lithium battery module described in the utility model with battery core heat conduction isolating device shows
It is intended to；
Fig. 9 is that the cascaded structure of the dynamic lithium battery module described in the utility model with battery core heat conduction isolating device shows
It is intended to (containing temperature control device).
Wherein：1- dynamic lithium batteries module, 2- positive pole parallel connections cylinder manifold, 3- positive poles welding conducting strip, 4- positive batteries box,
5- cylindrical electrical cores, 6- battery core heat conduction isolating device, 7- negative batteries box, 8- negative poles welding conducting strip, 9- negative pole parallel connections cylinder manifold,
Heat-conducting plate, 15- sides heat-conducting plate, 16- under 10- high-temperature insulations piece, 11- division boards, the upper heat-conducting plates of 12-, 13- protecting tubes, 14-
Be flexible coupling bus-bar, 17- temperature control devices, 18- fusing extreme ear structures.
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 with battery core heat conduction isolating device of the present utility model
Module 1, including：Multiple cylindrical electrical cores 5 in parallel and battery core heat conduction isolating device 6, wherein the battery core heat conduction isolating device 6 is wrapped
Heat-conducting plate 12, protecting tube 13, lower heat-conducting plate 14 and side heat-conducting plate 15 are included, the protecting tube 13 is arranged on the upper heat-conducting plate
12nd, between the lower heat-conducting plate 14 and the side heat-conducting plate 15, the cylindrical electrical core 5 is arranged in the protecting tube 13.It is excellent
Selection of land, the upper heat-conducting plate 12, the lower heat-conducting plate 14 and the side heat-conducting plate 15 are aluminum heat conducting plate, the protecting tube 13
To protect aluminum pipe.
Preferably, in addition to positive battery box 4, negative battery box 7, positive pole welding conducting strip 3, negative pole welding conducting strip 8,
Positive pole parallel connection cylinder manifold 2, negative pole parallel connection cylinder manifold 9, high-temperature insulation piece 10 and division board 11, wherein the He of the cylindrical electrical core 5
The battery core heat conduction isolating device 6 is arranged between the positive battery box 4 and the negative battery box 7, the positive pole welding
Conducting strip 3 is arranged on the positive battery box 4, negative pole welding conducting strip 8, the high-temperature insulation piece 10 and it is described every
It is arranged on from plate 11 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 the positive pole welding conducting strip 3, and the positive pole welds conducting strip 3 in the positive pole position of every cylindrical electrical core 5
Place is designed with the extreme ear structure 18 that fuses, and the positive pole of each cylindrical electrical core 5 is realized with positive pole welding conducting strip 3 to be connected
Connect.
Preferably, in addition to a positive pole parallel connection cylinder manifold 2, the positive pole parallel connection cylinder manifold 2 and positive pole welding are conductive
Piece 3 is integrally welded, and the positive pole parallel connection cylinder manifold 2 is provided with perforate in the opening position of cylindrical electrical core 5.
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, in addition to a negative pole parallel connection cylinder manifold 9, the negative pole parallel connection cylinder manifold 9 and negative pole welding are conductive
Piece 8 is integrally welded, and the negative pole parallel connection cylinder manifold 9 is provided with perforate in the opening position of cylindrical electrical core 5.
Preferably, cylindrical electrical core 5 is inserted in battery core heat conduction isolating device 6 and remilitarized in positive battery box 4 and negative battery
In box 7, engaged by snap fit.Positive pole welds conducting strip 3 and positive pole parallel connection cylinder manifold 2 is integrally welded, then welds conduction by positive pole
The lug of piece 3 welds with the positive pole of cylindrical electrical core 5.Negative pole welds conducting strip 8 and negative pole parallel connection cylinder manifold 9 is integrally welded, then by
The lug of negative pole welding conducting strip 8 welds with the negative pole of cylindrical electrical core 5.High-temperature insulation piece 10 is close to negative pole parallel connection cylinder manifold 9 and filled
Match somebody with somebody, 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 modules are connected by way of series connection.Preferably,
Each two lithium battery module by bus-bar (be preferably flexible coupling bus-bar 16, and its structure is as shown in Figure 9) by the positive pole simultaneously
Connection cylinder manifold 2 and the negative pole parallel connection cylinder manifold 9 are connected in series；The lithium battery module and a temperature control device 17 are (preferably
Ground, as shown in figure 9, the temperature control device 17 is arranged on the side heat-conducting plate 15, it includes but is not limited to PTC heating dresses
Put, be heating plate heater, liquid heating, coolant cooling device, fan cooling apparatus used) connection.Multiple power lithium batteries
Pond module 1 is connected in series, its high pressure connected mode：Bus-bar 16 be flexible coupling by described in adjacent module on positive pole parallel connection cylinder manifold 2
End bending 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, more effectively
It ensure that the reliability of high pressure connection.Lithium battery module be connected by battery core heat conduction isolating device 6 with outside temperature control device 17 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 battery core heat conduction isolating device 6 by upper heat-conducting plate 12, protecting tube 13, under
Heat-conducting plate 14, side heat-conducting plate 15 are formed, and multiple cylindrical electrical cores 5 in parallel are fixed in battery core heat conduction isolating device 6, battery core quilt
Battery core heat conduction isolating device 6 isolates the individual for forming independent space, and battery core is wrapped in protecting tube 13, in the battery core course of work
Caused heat is absorbed by protecting tube 13, then is transmitted to lower heat-conducting plate 14, upper heat-conducting plate 12, side heat-conducting plate 15 by protecting tube 13
This conduction for just forming heat distributes equilibrium.When thermal runaway occurs for battery core, battery core heat conduction isolating device 6 plays insulation blocking again
Effect, isolate battery core out of control, protect remaining battery core in parallel, form radial protection, prevent further expanding for thermal runaway.
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 1 is again by the bus-bar 16 that is flexible coupling by phase
Adjacent dynamic lithium battery module 1 connects, i.e., the upper end of positive pole parallel connection cylinder manifold 2 of previous module and the remittance in parallel of the negative pole of latter module
The upper end of flowing plate 9 is connected in series, and forms relatively reliable high pressure connection.
The fusing lug 18 of positive pole welding conducting strip 3 welds with battery core positive pole, and the fusing lug 18 allows in certain limit
Electric current by without generate heat, when there is excessively stream in battery core, fusing the moment of lug 18 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 (6)
- A kind of 1. dynamic lithium battery module with battery core heat conduction isolating device, it is characterised in that including：Multiple cylinders in parallel Battery core and battery core heat conduction isolating device, wherein the battery core heat conduction isolating device include upper heat-conducting plate, protecting tube, lower heat-conducting plate and Side heat-conducting plate, the protecting tube is arranged between the upper heat-conducting plate, the lower heat-conducting plate and the side heat-conducting plate, described Cylindrical electrical core is arranged in the protecting tube.
- 2. the dynamic lithium battery module of battery core heat conduction isolating device is carried as claimed in claim 1, it is characterised in that：Also include Positive battery box, negative battery box, positive pole welding conducting strip, negative pole welding conducting strip, positive pole parallel connection cylinder manifold, negative pole remittance in parallel Flowing plate, high-temperature insulation piece and division board, wherein the cylindrical electrical core and the battery core heat conduction isolating device be arranged on it is described just Between pole battery case and the negative battery box, the positive pole welding conducting strip is arranged on the positive battery box, described negative Pole welding conducting strip, the high-temperature insulation piece and the division board are arranged on the negative battery box.
- 3. the dynamic lithium battery module of battery core heat conduction isolating device is carried as claimed in claim 2, it is characterised in that：It is described just Pole battery case leaves positive pole perforate at the positive pole of the cylindrical electrical core, and it is conductive that positive pole tapping is provided with the positive pole welding Piece, positive pole welding conducting strip are designed with the extreme ear structure that fuses in the positive pole opening position of every cylindrical electrical core, each The positive pole of the cylindrical electrical core is realized with positive pole welding conducting strip and connected.
- 4. the dynamic lithium battery module of battery core heat conduction isolating device is carried as claimed in claim 2 or claim 3, it is characterised in that：Also Including a positive pole parallel connection cylinder manifold, the positive pole parallel connection cylinder manifold and positive pole welding conducting strip are integrally welded, and institute State positive pole parallel connection cylinder manifold and be provided with perforate in the cylindrical electrical core opening position.
- 5. the dynamic lithium battery module of battery core heat conduction isolating device is carried as claimed in claim 2, it is characterised in that：It is described negative Pole battery case leaves negative pole perforate at the negative pole of the cylindrical electrical core, and it is conductive that negative pole tapping is provided with the negative pole welding Piece, negative pole welding conducting strip are designed with the extreme ear structure that fuses in the negative pole opening position of every cylindrical electrical core, each The negative pole of the cylindrical electrical core is realized with negative pole welding conducting strip and connected.
- 6. the dynamic lithium battery module of battery core heat conduction isolating device is carried as claimed in claim 2 or claim 3, it is characterised in that：Also Including a negative pole parallel connection cylinder manifold, the negative pole parallel connection cylinder manifold and negative pole welding conducting strip are integrally welded, and institute State negative pole parallel connection cylinder manifold and be provided with perforate in the cylindrical electrical core opening position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720462512.9U CN206834288U (en) | 2017-04-28 | 2017-04-28 | A kind of dynamic lithium battery module with battery core heat conduction isolating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720462512.9U CN206834288U (en) | 2017-04-28 | 2017-04-28 | A kind of dynamic lithium battery module with battery core heat conduction isolating device |
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| CN206834288U true CN206834288U (en) | 2018-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720462512.9U Active CN206834288U (en) | 2017-04-28 | 2017-04-28 | A kind of dynamic lithium battery module with battery core heat conduction isolating device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638213A (en) * | 2019-01-24 | 2019-04-16 | 苏州骁派汽车科技有限公司 | Liquid-cooled cylindrical electrical core battery modules |
| CN109860462A (en) * | 2019-01-30 | 2019-06-07 | 苏州力神能源科技有限公司 | A kind of battery pack equipotential isothermal body structure |
| CN109860954A (en) * | 2019-01-30 | 2019-06-07 | 苏州力神能源科技有限公司 | It is a kind of using etc. temperature volumes structure battery group heated type temperature-controlling system |
-
2017
- 2017-04-28 CN CN201720462512.9U patent/CN206834288U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638213A (en) * | 2019-01-24 | 2019-04-16 | 苏州骁派汽车科技有限公司 | Liquid-cooled cylindrical electrical core battery modules |
| CN109860462A (en) * | 2019-01-30 | 2019-06-07 | 苏州力神能源科技有限公司 | A kind of battery pack equipotential isothermal body structure |
| CN109860954A (en) * | 2019-01-30 | 2019-06-07 | 苏州力神能源科技有限公司 | It is a kind of using etc. temperature volumes structure battery group heated type temperature-controlling system |
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