CN211605357U - Battery module - Google Patents
Battery module Download PDFInfo
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- CN211605357U CN211605357U CN202020635135.6U CN202020635135U CN211605357U CN 211605357 U CN211605357 U CN 211605357U CN 202020635135 U CN202020635135 U CN 202020635135U CN 211605357 U CN211605357 U CN 211605357U
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- battery module
- heat
- change material
- shell
- composite phase
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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 relates to the technical field of power supplies, in particular to a battery module, which comprises a shell and a plurality of electric cores which are uniformly distributed in the shell, wherein the outer wall of each electric core is provided with an insulating heat-conducting layer; the battery module also comprises at least one composite phase change material which is used for filling the space between the shell and the battery core; and a heat insulation plate is arranged between every two adjacent electric cores, and a plurality of through holes are arranged on the heat insulation plate in a penetrating manner. The utility model discloses novel structure, design benefit is provided with a plurality of through-holes on the heat insulating board, fills the high composite phase change material of coefficient of heat conductivity on the through-hole, before reaching the thermal runaway after the temperature reaches composite phase change material melting point, fused composite phase change material can flow the heat transfer through each through-hole on every side and composite phase change material on every side, makes each electric core temperature in the whole battery module have the uniformity, reaches the heat dissipation purpose.
Description
Technical Field
The utility model belongs to the technical field of the power technique and specifically relates to indicate a battery module.
Background
In recent years, air pollution caused by traditional fuel oil automobiles is becoming more serious, and under the dual pressure of energy crisis and environmental pollution, China is developing new energy electric automobiles greatly, the power source of the new energy electric automobiles is mainly a power battery, but the battery still has certain safety problems. Because the battery can produce a large amount of heats in the charge-discharge process, and the effect of space restriction and time accumulation easily causes the temperature rise of monomer battery, when surpassing the normal operating temperature scope of battery, the monomer battery very easily takes place thermal runaway, finally leads to the emergence of whole car conflagration explosion accident. Therefore, it becomes very important to improve the heat dissipation capability of the battery system.
SUMMERY OF THE UTILITY MODEL
The utility model discloses problem to prior art provides a battery module, novel structure, design benefit is provided with a plurality of through-holes on the heat insulating board, fills the high composite phase change material of coefficient of heat conductivity on the through-hole, before reaching thermal runaway after the temperature reaches composite phase change material melting point, fused composite phase change material can flow heat transfer through each through-hole on every side and composite phase change material on every side, makes each electric core temperature in the whole battery module have the uniformity, reaches the heat dissipation purpose.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a battery module, which comprises a shell and a plurality of electric cores which are uniformly distributed in the shell, wherein the outer wall of each electric core is provided with an insulating heat-conducting layer; the battery module also comprises at least one composite phase change material which is used for filling the space between the shell and the battery core; and a heat insulation plate is arranged between every two adjacent electric cores, and a plurality of through holes are arranged on the heat insulation plate in a penetrating manner.
Wherein the through holes are uniformly distributed on the heat insulation plate.
The battery cells are distributed in the shell in an array mode.
Wherein, the inner wall of the shell is provided with a heat insulation layer.
The composite phase-change material is filled between the heat insulation layer and the heat conduction layer.
And the inner wall of the shell is provided with a groove for clamping the heat insulation plate.
And a clamping groove for placing the battery cell is formed in the bottom of the inner wall of the shell.
The utility model has the advantages that:
the utility model discloses novel structure, design benefit is provided with a plurality of through-holes on the heat insulating board, fills the high composite phase change material of coefficient of heat conductivity on the through-hole, before reaching the thermal runaway after the temperature reaches composite phase change material melting point, fused composite phase change material can flow the heat transfer through each through-hole on every side and composite phase change material on every side, makes each electric core temperature in the whole battery module have the uniformity, reaches the heat dissipation purpose.
Drawings
Fig. 1 is a schematic structural diagram of a battery module according to the present invention.
Fig. 2 is an enlarged view of a point a in fig. 1.
Fig. 3 is a schematic structural view of the heat insulation board of the present invention.
The reference numerals in fig. 1 to 3 include:
1-shell 2-electric core 3-insulating heat-conducting layer
4-composite phase-change material 5-heat insulation plate 6-through hole
7-heat insulation layer.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
A battery module, as shown in fig. 1 to 3, includes a casing 1 and a plurality of cells 2 uniformly distributed and installed in the casing 1, wherein an insulating heat conduction layer 3 is disposed on an outer wall of each cell 2; the battery module also comprises at least one composite phase change material 4 which is used for filling the space between the shell 1 and the battery core 2; a heat insulation plate 5 is arranged between every two adjacent electric cores 2, a plurality of through holes 6 are arranged on the heat insulation plate 5 in a penetrating mode, and preferably, the through holes 6 are uniformly distributed on the heat insulation plate 5. Specifically, the embodiment of the utility model provides a novel structure, design benefit is provided with a plurality of through-holes 6 on the heat insulating board 5, pours into composite phase change material 4 that coefficient of heat conductivity is high on the through-hole 6, before reaching thermal runaway after the temperature reaches composite phase change material 4 melting point, fused composite phase change material 4 can flow with composite phase change material 4 on every side through-hole 6 on every side and carry out heat transfer, makes every electric core 2 temperature in the whole battery module have the uniformity, reaches the heat dissipation purpose; in addition, the plurality of through holes 6 may be unevenly distributed, the shape and size of each through hole 6 may be set according to actual needs, and the distribution density among the plurality of through holes 6 may be adjusted according to actual needs.
The composite phase-change material is a mixture of paraffin and expanded graphite powder, and a mixture of paraffin and metal powder (such as copper foam and aluminum foam).
In the battery module of this embodiment, a plurality of electric cores 2 are distributed in an array in the housing 1. The battery module structure is improved in uniformity and stability through the arrangement, the shell 1 is a heat conduction shell, the heat conduction shell is made of metal with high heat conduction coefficient and composite materials thereof, the heat conduction coefficient K is generally 200W/m.K-400W/m.K, the metal is copper or aluminum, heat generated by the battery can be timely transferred, and the heat dissipation effect is improved.
In the battery module of this embodiment, the inner wall of the housing 1 is provided with the heat insulating layer 7. Wherein the heat insulation layer 7 is a heat insulation plate; preferably, the composite phase-change material 4 adopts a phase-change system with high phase-change latent heat and high thermal conductivity, the thermal conductivity coefficient is preferably above 10W/m.K, the composite phase-change material 4 is paraffin/expanded graphite or paraffin/carbon fiber, the heat transferred by the shell 1 can be absorbed conveniently, the uniformity of the temperature of the battery module is improved, and the phase-change temperature of the composite phase-change material 4 is 30-50 ℃.
In the battery module of this embodiment, the composite phase-change material 4 is filled between the heat insulating layer 7 and the heat conducting layer 3. Preferably, a plurality of heat insulation plates 5 are connected together and integrally formed, so that the structural integration stability is improved, and the heat dissipation effect is improved.
In the battery module of this embodiment, the inner wall of the housing 1 is provided with a groove for clamping the heat insulation board 5. Specifically, the arrangement of the groove facilitates clamping of the heat insulation plate 5.
In the battery module of this embodiment, the inner wall bottom of the housing 1 is provided with a clamping groove for placing the battery core 2. Specifically, utilize the draw-in groove to place electric core 2, place electric core 2 location, reduce not hard up condition.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (7)
1. A battery module, its characterized in that: the battery comprises a shell and a plurality of battery cores which are uniformly distributed in the shell, wherein the outer wall of each battery core is provided with an insulating heat-conducting layer; the battery module also comprises at least one composite phase change material which is used for filling the space between the shell and the battery core; and a heat insulation plate is arranged between every two adjacent electric cores, and a plurality of through holes are arranged on the heat insulation plate in a penetrating manner.
2. The battery module according to claim 1, wherein: the through holes are uniformly distributed on the heat insulation plate.
3. The battery module according to claim 1, wherein: the plurality of battery cores are distributed in the shell in an array mode.
4. The battery module according to claim 1, wherein: and a heat insulation layer is arranged on the inner wall of the shell.
5. The battery module according to claim 4, wherein: the composite phase-change material is filled between the heat insulation layer and the heat conduction layer.
6. The battery module according to claim 1, wherein: the inner wall of the shell is provided with a groove for clamping the heat insulation plate.
7. The battery module according to claim 1, wherein: and a clamping groove for placing the battery cell is formed in the bottom of the inner wall of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020635135.6U CN211605357U (en) | 2020-04-23 | 2020-04-23 | Battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020635135.6U CN211605357U (en) | 2020-04-23 | 2020-04-23 | Battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211605357U true CN211605357U (en) | 2020-09-29 |
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ID=72584267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020635135.6U Active CN211605357U (en) | 2020-04-23 | 2020-04-23 | Battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211605357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421145A (en) * | 2020-11-20 | 2021-02-26 | 安徽南都华拓新能源科技有限公司 | Integrated intelligent lithium iron battery for 5G communication system |
-
2020
- 2020-04-23 CN CN202020635135.6U patent/CN211605357U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421145A (en) * | 2020-11-20 | 2021-02-26 | 安徽南都华拓新能源科技有限公司 | Integrated intelligent lithium iron battery for 5G communication system |
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