CN207587825U - Battery module and battery modules - Google Patents
Battery module and battery modules Download PDFInfo
- Publication number
- CN207587825U CN207587825U CN201720702345.0U CN201720702345U CN207587825U CN 207587825 U CN207587825 U CN 207587825U CN 201720702345 U CN201720702345 U CN 201720702345U CN 207587825 U CN207587825 U CN 207587825U
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- Prior art keywords
- battery core
- battery
- cylinder manifold
- cathode
- anode
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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
Abstract
The utility model discloses a kind of battery module and battery modules, battery module includes battery core bracket, cylinder manifold and battery core, its main feature is that, further include cathode heat conductive pad and anode isolation board, cylinder manifold includes upper and lower cylinder manifold, face where being respectively arranged in battery core bracket face where battery core anode and battery core cathode, it is welded to connect between upper and lower cylinder manifold and the positive and negative anodes of battery core by welding wire, positioned at the cylinder manifold of battery core anode portion, its outer layer covers anode isolation board, positioned at the cylinder manifold of battery core cathode portion, outer layer covering cathode heat conductive pad.Filled with heat-conducting glue between the utility model battery core cathode and cylinder manifold, ensure the stability of welding wire and good heat dissipation performance；Battery core anode portion is equipped with pressure release passage and back-fire relief isolation structure, and thermal runaway is avoided to spread, and will not cause the burning of entire battery system, and safety is able to high degree raising；Comprising graphite flake in battery module, the heat dissipation of battery module and soaking performance are improved.
Description
Technical field
The utility model is related to a kind of battery module and battery modules, belong to lithium battery safety and energy storage field.
Background technology
Compared with orthodox car, electric vehicle has apparent advantage in terms of environmental protection.Waste pollution and noise pollution are interior
The big pollution of the two of combustion engine automobile.Electric vehicle does not consume gasoline then, and no exhaust emission, low noise, radiation is small, is a kind of ideal clear
The clean vehicles.With the enhancing of the environmental consciousness of the mankind, the application of electric vehicle is increasingly extensive, so as to electric vehicle battery module
An important subject is developed into battery modules.
In the prior art there is the problem of being difficult to radiate and radiate unevenness in battery module, influence the steady of battery module work
It is qualitative.For this problem, there are many solution, Chinese patent CN106340696A is externally wrapped with heating using battery core
And cooling line, the mode of liquid circulation.But said program causes battery module total weight to greatly increase, at the same have by short circuit,
The security risks such as leakage easily fail under vibration condition.Technology described in Chinese patent CN106257742A, by micro heat pipe itself spy
Property limitation, battery system has certain placed angle requirement, and heat pipe preparation has definite shape limitation, is not easy closely to paste with battery core
It closes, influences heat dissipation effect.On the basis of heat pipe is used, the radiating fin for increasing module adds Chinese patent CN205863335U
Strong convection heat dissipation effect, unipotential must increase module weight, reduce system energy densities.Fin heat dissipation simultaneously needs additional air pair
Fluid space, volume can also significantly increase, and product does not have competitive advantage.
In addition, each battery core in battery module will appear after working long hours battery core it is on fire or generate high heat gas
Body is released, and the damage that gas that is on fire or generating high heat is likely to result in adjacent battery core occurs in battery core, for this problem,
There are no good solutions.
Invention content
The purpose of this utility model is exactly in order to solve the above problem of the existing technology, so as to provide a kind of battery mould
Block and battery modules, improve the heat dissipation performance and heat dissipation uniformity of battery module, and prevent battery thermal runaway, avoid entire electricity
Pond module damage happens.
The technical solution of the utility model is：A kind of battery module, including battery core bracket, cylinder manifold and battery core, institute
Battery core bracket is stated equipped with battery core mounting hole, the battery core is installed in battery core mounting hole, which is characterized in that is further included cathode and is led
Heat pad and anode isolation board, the cylinder manifold are equipped with through-hole, and each through-hole is corresponding with the position of battery core mounting hole, the remittance
Flowing plate includes upper and lower cylinder manifold, is respectively arranged in the battery core bracket and powers on two faces where core electrode, the upper and lower remittance
It is connected between flowing plate and the electrode of battery core by welding wire, positioned at the cylinder manifold of battery core anode portion, outer layer covering anode
Isolation board, positioned at the cylinder manifold of battery core cathode portion, outer layer covering cathode heat conductive pad.
Further, above-mentioned battery module, wherein：The neighboring of the anode isolation board and cathode heat conductive pad is connected with
The outer layer of PI isolation films, the anode isolation board and cathode heat conductive pad is all covered with graphite flake, the outer layer covering of the graphite flake
There is heat-conducting plate.
Further, above-mentioned battery module, wherein：In each battery core mounting hole peripheral direction of the battery core bracket, portion
Barrier flaps are arranged with, the barrier flaps protrude from battery core mounting hole, and the part that battery core mounting hole periphery is not provided with barrier flaps is formed
Opening.
Further, above-mentioned battery module, wherein：Positioned at the cylinder manifold of the battery core cathode portion, bore periphery is set
Fluted, the cathode connection of described welding wire one end and battery core, the other end is connected in groove, and in entire groove and battery core is born
Filled with heat-conducting glue in the space on best barrier flaps top, the cathode heat conductive pad is by heat-conducting glue with being located at battery core cathode portion
Cylinder manifold be connected.
Further, above-mentioned battery module, wherein：Positioned at the cylinder manifold of battery core anode portion, thickness is less than barrier
The height of piece, the anode isolation board are installed on the outside of barrier flaps most outer, the battery core bracket, cylinder manifold, opening, anode
Pressure release passage is formed between barrier flaps between isolation board and each adjacent battery core mounting hole.
Further, above-mentioned battery module, wherein：The peripheral surface of the battery core bracket is equipped with pressure relief opening, the pressure release
Mouth is connected with the pressure release passage.
Further, above-mentioned battery module, the battery core mounting hole are described along barrier flaps perpendicular bisector direction arranged adjacent
Battery core mounting hole is intervally arranged along opening direction.
The invention also discloses a kind of battery modules, including at least two above-mentioned battery modules, each battery module
It is connected before by connector, positioned at the outermost battery module in both ends, outer layer is equipped with insulating barrier, outside the insulating barrier
Portion is equipped with module bracket.
The substantive distinguishing features and significant technological progress that the utility model protrudes are mainly reflected in：
(1) it is welded to connect by welding wire between battery core and cylinder manifold, is abnormal in battery core, cause actual output current
During more than limitation electric current, welding wire can fuse so that the exception battery core and cylinder manifold disconnect, and do not interfere with remaining battery core
Work；
(2) between battery core cathode and cylinder manifold filled with heat-conducting glue, the cylinder manifold outer layer of battery core cathode portion is connected with negative
Pole heat conductive pad ensures the stability of welding wire and good heat dissipation performance；
(3) battery core anode portion is equipped with pressure release passage and back-fire relief isolation structure, when indivedual battery cores are on fire or generate high heat
Gas when releasing, high energy high fever substance will not be in direct contact other battery cores, can be guided to cause explosive decompression other than module to cool down,
Thermal runaway is avoided to spread, the burning of entire battery system will not be caused, safety is able to high degree raising；
(4) anode isolation board and cathode heat conductive pad outer layer are equipped with graphite flake, and graphite flake is with good heat conductivility and
Hot property improves the heat dissipation performance and temperature uniformity of battery module, ensures the job stability of battery module.
Description of the drawings
Fig. 1 is the utility model battery module explosive view；
Fig. 2 is battery core cathode portion structure diagram；
Fig. 3 is battery core cathode portion sectional view；
Fig. 4 is battery core anode portion structure diagram；
Fig. 5 is battery core anode portion vertical view；
Fig. 6 is battery module top surface battery core arrangement schematic diagram；
Fig. 7 is battery modules schematic diagram.
In figure, the meaning of each reference numeral is：1-battery core bracket, 2-cylinder manifold, 3-cathode heat conductive pad, 4-anode every
From plate, 5-PI isolation films, 6-graphite flake, 7-heat-conducting plate, 8-welding wire, 9-battery core, 10-connector, 11-insulation every
Plate, 12-module bracket, 13-collection plate, 14-barrier flaps, 15-opening, 16-pressure release passage, 21-groove, 22-draw
Go out cylinder manifold.
Specific embodiment
Below in conjunction with attached drawing, specific embodiment of the present utility model is described in further detail, so that the utility model skill
Art scheme is more readily understood and grasps.
As shown in Figure 1, face where now defining the electrode of battery core 9 in battery module is above and below, 1 periphery pair of battery core bracket
Face where answering long side is forward and backward face, and face where 1 periphery of battery core bracket corresponds to short side is left and right face.
As shown in Figure 1, Figure 2 and Figure 4, battery module includes battery core bracket 1, cylinder manifold 2, cathode heat conductive pad 3, anode isolation
Plate 4, PI isolation films 5, graphite flake 6, heat-conducting plate 7 and battery core 9, battery core bracket 1 are equipped with battery core mounting hole, and battery core 9 is installed on electricity
In the battery core mounting hole of core support 1, cylinder manifold 2 is installed on the above and below of battery core bracket 1, upper and lower cylinder manifold 2 and each battery core
It is welded to connect between 9 positive and negative anodes by welding wire 8, welding wire 8 is through battery core mounting hole and the through-hole of cylinder manifold 2.It is located at
The cylinder manifold 2 of 9 anode portion of battery core, outer layer covering anode isolation board 4, positioned at the cylinder manifold 2 of 9 cathode portion of battery core, outside
Layer covering cathode heat conductive pad 3, PI isolation films 5 are set on 3 neighboring of upper and lower anode isolation board 4 and cathode heat conductive pad, graphite flake 6
3 outer layer of upper and lower anode isolation board 4 and cathode heat conductive pad is covered in, heat-conducting plate 7 is covered in upper and lower 6 outer layer of graphite flake.With 18650
For battery core, due to 9 self structure relationship of battery core, at work, negative pole end temperature is higher for battery core 9, therefore need to be directed to battery core 9
Cathode portion radiate.In addition, as shown in figure 5, therefore the positive terminal of battery core 9, needs needle to be directed to battery core equipped with pressure relief opening 91
9 anode portion does anti-thermal runaway processing.Therefore, 9 anode portion of corresponding battery core setting anode isolation board 4, corresponding battery core 9 is negative
Pole part setting cathode heat conductive pad 3, PI isolation films are a kind of anti-insulation and Heat Conduction Material, under the premise of heat conduction function is not influenced
It can prevent from leaking electricity, graphite flake 6 has both good thermal conductivity and thermal uniformity, ensures the temperature uniformity on battery modules surface, and can
The heat-conducting plate 7 of outer layer is conducted heat to well.Wherein welding wire 8 is preferably aluminium wire, and cylinder manifold 2 and heat-conducting plate 7 are preferably
Aluminium sheet.Collection plate 13 is additionally provided in battery core bracket 1, collection plate 13 is connected with the battery core 9 in battery module, convenient for detection device
Battery core related data is detected by collection plate.Battery core bracket 1 is equipped with two pieces of extraction cylinder manifolds 22, draws cylinder manifold 22 and confluence
Plate 2 is connected, and draws the positive and negative anodes that cylinder manifold 22 is corresponding battery module.
As shown in Figures 2 and 3, in each battery core mounting hole peripheral direction of battery core bracket 1, partly equipped with barrier flaps
14, barrier flaps 14 protrude from the battery core mounting hole of battery core bracket 1, and the part that battery core mounting hole is not provided with barrier flaps forms opening
15, positioned at the cylinder manifold 2 of 9 cathode portion of battery core, bore periphery is equipped with groove 21, and the opening of groove 21 is towards barrier flaps 14
Opening 15 is formed, 8 one end of welding wire and the cathode of battery core 9 are welded to connect, and the other end is welded in the groove 21 on cylinder manifold 2
It is interior, wrap up entire filled with heat-conducting glue, heat-conducting glue in entire groove 21 and in 9 cathode of battery core to the space on 14 top of barrier flaps
Welding wire 8, ensures the stability of welding wire 8, and cathode heat conductive pad 3 sticks in 2 outer layer of cylinder manifold by heat-conducting glue.Pass through heat-conducting glue
The heat of 9 cathode of battery core can be conducted to cathode heat conductive pad 3 so that entire cathode heat conductive pad 3 can be used as radiating surface, dissipate
Hot area is big, good heat dissipation effect.
As shown in Figure 4 and Figure 5, it in each battery core mounting hole periphery of battery core bracket 1, partly equipped with barrier flaps 14, obstructs
Piece 14 protrudes from the battery core mounting hole of battery core bracket 1, and the part for being not provided with barrier flaps forms opening 15, and barrier flaps 14 are equipped with two
It is a, two openings 15 are correspondingly formed, two openings 15 form a channel.Positioned at the cylinder manifold 2 of 9 anode portion of battery core,
Thickness is less than the height of barrier flaps 14, and anode isolation board 3 is installed on the outside of the most outer of barrier flaps 14, so that battery core bracket
1st, pressure release passage is formed between the barrier flaps 14 between cylinder manifold 2, opening 15, anode isolation board 3 and adjacent battery core mounting hole
16.The highly preferred of pressure release passage 16 is 0.5~4mm, particularly preferably 1~3mm.As shown in fig. 6, the periphery of battery core bracket 1
Face is equipped with pressure relief opening, and pressure relief opening is connected with pressure release passage 16.As shown in figure 4, due to being provided with baffler 14, if battery core 9
Anode flame sprays hot barometric pressure, is limited, can not be sprayed by baffler 14 in the lateral direction, only through pressure release passage 16 from letting out
Mouth is pressed to spray.
As shown in Figure 4 and Figure 6,9 anode of battery core can only be in front-rear direction (arrow direction in Fig. 6) flame or hot gas
Pressure.Battery core mounting hole left and right directions arranged adjacent, and be intervally arranged in front-rear direction so that adjacent battery core 9 in the front-back direction
Spacing is larger, and so as to ensure when 9 flame of battery core, flame distance is less than the distance of adjacent battery core 9 on front-rear direction.This
In it should be noted that above-mentioned left and right directions and front-rear direction arrangement battery core 9 are only preferred embodiment, because of barrier flaps during reason
14 left and right directions are arranged, opening 15 front-rear directions arrangement, as long as ensureing to be open on the direction of 15 directions on edge, battery core bracket
Interior adjacent battery core installation pitch of holes is in safe distance, i.e. spacing is more than the maximum distance of battery core flame, ensures each battery core 9
Between be independent of each other.Based on this, battery core mounting hole is opened along 14 perpendicular bisector direction arranged adjacent of barrier flaps, battery core mounting hole edge
15 directions of mouth are intervally arranged.Spacing between two battery cores 9 adjacent along 14 perpendicular bisector direction of barrier flaps is preferably 15~
25mm is 25~35mm along spacing between two battery cores 9 of opening 15 directions arrangement.
As shown in fig. 6, a battery module includes 84 battery cores 9 in the utility model, using 42P2S structures (84 electricity
Core is divided into two groups, one group of 42 battery core, and 42 battery cores in two groups are parallel with one another, and two groups of battery cores are serially connected), battery module is left
Half part and right half part are respectively comprising 42 battery cores 9, and 9 cathode of battery core of left-half is towards battery module top surface, right half part
9 anode of battery core towards battery module top surface.Correspondingly, as shown in fig. 6, the cylinder manifold 2 positioned at 1 top surface of battery core bracket divides is
Left and right two pieces independent cylinder manifolds 2, left side cylinder manifold 2 be equipped with groove 21 its specific connection structure can be found in Fig. 2, Fig. 3 and
It is described above for the connection structure of 9 cathode of battery core and cylinder manifold 2, similarly the specific of cylinder manifold 2 connects on the right side of battery module top surface
Binding structure can be found in Fig. 4 and the description above for 9 anode of battery core and 2 connection structure of cylinder manifold.Positioned at 1 bottom surface of battery core bracket
Cylinder manifold 2 be cylinder manifold that a monoblock is completed, can both realize the structure of 42P2S, the confluence positioned at 1 bottom surface of battery core bracket in this way
Its structure corresponding to 9 positive and negative electrode part of battery core of plate 2 is same as described above, and which is not described herein again.Certain said program is only preferred
Scheme, the arrangement mode of battery are set according to actual needs, such as can be by the cathode of each battery core 9 towards battery module bottom
Face by the anode of each battery core 9 towards battery module top surface, correspondingly, is set on the cylinder manifold 2 of 1 bottom surface of battery core bracket
Put groove 21, outer side covering cathode heat conductive pad 3, the cylinder manifold 2 positioned at 1 top surface of battery core bracket, the isolation of outer side covering anode
Plate 4.
The invention also discloses a kind of battery modules, as shown in fig. 7, including 6 battery moulds in a battery modules
Block, each battery module are connected before by connector 10, and connector 10 is preferably connecting copper bar.Positioned at the outermost electricity in both ends
Pond module, outer layer are equipped with insulating barrier 11, and 11 outside of insulating barrier is equipped with module bracket 12.Certainly, in a battery modules
Battery module quantity be not limited only to 6 in Fig. 7, in actual use can be according to need including at least two battery modules
The battery module of corresponding number is installed.
By above description as can be seen that battery module mentioned by the utility model, due between battery core and cylinder manifold
It is welded to connect by welding wire, is abnormal in battery core, it is more than when limiting electric current to cause actual output current, and welding wire can occur
Fusing so that the exception battery core and cylinder manifold disconnect, and do not interfere with the work of remaining battery core.In addition, battery core cathode and cylinder manifold
Between filled with heat-conducting glue, the cylinder manifold outer layer of battery core cathode portion is connected with cathode heat conductive pad, ensures the stability of welding wire
And good heat dissipation performance, battery core anode portion are equipped with pressure release passage and back-fire relief isolation structure, when indivedual battery cores are on fire or production
When the gas of raw high heat is released, high energy high fever substance will not be in direct contact other battery cores, can be guided to cause rapid other than module
Decompression cooling, avoids thermal runaway from spreading, and will not cause the burning of entire battery system, and safety is able to high degree raising；This
Outside, anode isolation board and cathode heat conductive pad outer layer are equipped with graphite flake, and graphite flake has good heat conductivility and soaking performance, carries
The heat dissipation performance and temperature uniformity of high battery module ensure the job stability of battery module.
Certainly, it is the representative instance of the utility model more than, in addition to this, the utility model can also have other a variety of
Specific embodiment, all technical solutions formed using equivalent substitution or equivalent transformation all fall within the requires of the utility model protection
Within the scope of.
Claims (10)
1. battery module, including battery core bracket, cylinder manifold and battery core, the battery core bracket is equipped with battery core mounting hole, the electricity
Core is installed in battery core mounting hole, it is characterised in that：Cathode heat conductive pad and anode isolation board are further included, the cylinder manifold is equipped with
Through-hole, each through-hole is corresponding with the position of battery core mounting hole, and the cylinder manifold is installed on the battery core bracket and powers on core electrode
Place face is connected between the cylinder manifold and the electrode of battery core by welding wire, positioned at the cylinder manifold of battery core anode portion,
Its outer layer covers anode isolation board, positioned at the cylinder manifold of battery core cathode portion, outer layer covering cathode heat conductive pad.
2. battery module according to claim 1, it is characterised in that：The outer layer of the anode isolation board and cathode heat conductive pad
It is all covered with graphite flake.
3. battery module according to claim 2, it is characterised in that：The outer layer of the graphite flake is covered with heat-conducting plate.
4. battery module according to claim 1, it is characterised in that：Each battery core mounting hole periphery of the battery core bracket
On direction, partly equipped with barrier flaps, the barrier flaps protrude from battery core mounting hole, and battery core mounting hole periphery is not provided with barrier flaps
Part forms opening.
5. battery module according to claim 4, it is characterised in that：Positioned at the cylinder manifold of the battery core cathode portion,
Bore periphery is equipped with groove, and the cathode connection of described welding wire one end and battery core, the other end is connected in groove, in entire groove
And filled with heat-conducting glue in battery core cathode to the space of barrier flaps outer, the cathode heat conductive pad is by heat-conducting glue with being located at electricity
The cylinder manifold of core cathode portion is connected.
6. battery module according to claim 4, it is characterised in that：Positioned at the cylinder manifold of battery core anode portion, thickness
Less than the height of barrier flaps, the anode isolation board is installed on the outside of barrier flaps most outer, the battery core bracket, cylinder manifold,
Pressure release passage is formed between barrier flaps between opening, anode isolation board and each adjacent battery core mounting hole.
7. battery module according to claim 6, it is characterised in that：The peripheral surface of the battery core bracket is equipped with pressure relief opening,
The pressure relief opening is connected with the pressure release passage.
8. battery module according to claim 4, it is characterised in that：The battery core mounting hole is along barrier flaps perpendicular bisector direction
Arranged adjacent, the battery core mounting hole are intervally arranged along opening direction.
9. a kind of battery modules, it is characterised in that：Including the battery mould described in any one at least two claim 1-8
Block, each battery module are connected before by connector.
10. battery modules according to claim 9, it is characterised in that：Positioned at the outermost battery module in both ends, outer layer
Equipped with module bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702345.0U CN207587825U (en) | 2017-06-16 | 2017-06-16 | Battery module and battery modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720702345.0U CN207587825U (en) | 2017-06-16 | 2017-06-16 | Battery module and battery modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207587825U true CN207587825U (en) | 2018-07-06 |
Family
ID=62717429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720702345.0U Active CN207587825U (en) | 2017-06-16 | 2017-06-16 | Battery module and battery modules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207587825U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134557A (en) * | 2017-06-16 | 2017-09-05 | 宁波利维能储能系统有限公司 | Battery module and battery modules |
| 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 |
| CN109728225A (en) * | 2019-01-08 | 2019-05-07 | 深圳新恒业动力科技有限公司 | A kind of battery modules and its samming temperature control method |
| US20200321670A1 (en) * | 2019-03-14 | 2020-10-08 | Joel Hooper | Battery module thermal management |
-
2017
- 2017-06-16 CN CN201720702345.0U patent/CN207587825U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134557A (en) * | 2017-06-16 | 2017-09-05 | 宁波利维能储能系统有限公司 | Battery module and battery modules |
| CN107134557B (en) * | 2017-06-16 | 2023-06-09 | 宁波利维能储能系统有限公司 | Battery module and battery module |
| 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 |
| CN109728225A (en) * | 2019-01-08 | 2019-05-07 | 深圳新恒业动力科技有限公司 | A kind of battery modules and its samming temperature control method |
| US20200321670A1 (en) * | 2019-03-14 | 2020-10-08 | Joel Hooper | Battery module thermal management |
| US11527792B2 (en) * | 2019-03-14 | 2022-12-13 | Generac Power Systems, Inc. | Battery module thermal management |
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