CN212625775U - Battery module and battery - Google Patents
Battery module and battery Download PDFInfo
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- CN212625775U CN212625775U CN202021566976.2U CN202021566976U CN212625775U CN 212625775 U CN212625775 U CN 212625775U CN 202021566976 U CN202021566976 U CN 202021566976U CN 212625775 U CN212625775 U CN 212625775U
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- 239000007788 liquid Substances 0.000 claims abstract description 87
- 238000001816 cooling Methods 0.000 claims abstract description 52
- 238000005192 partition Methods 0.000 claims description 18
- 239000012790 adhesive layer Substances 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000110 cooling liquid Substances 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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 a battery technology field discloses a battery module and battery, and wherein the battery module includes: a plurality of cells; the liquid cooling plate is bent to form a plurality of accommodating cavities, and the electric cores are arranged in the accommodating cavities in a one-to-one correspondence manner to form electric core groups; the two end plates are respectively arranged at the two ends of the electric core group; the connecting plates are covered on two opposite side surfaces of the electric core group, and two ends of each connecting plate are respectively connected to the two end plates. Through the structure, the battery module can increase the contact area of the liquid cooling plate and the electric core group, has higher heat dissipation efficiency, can also separate heat transfer between the electric cores, and improves the consistency of the temperature between the electric cores.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a battery module and battery.
Background
The battery is used as a core component of the electric automobile, and the performance of the battery directly influences the quality of the electric automobile. However, the battery generates a large amount of heat during charging or operation, so that the temperature of the battery is increased, and the battery must be cooled to ensure normal operation.
At present, the cooling mode that most of battery systems and electric automobile adopted is to lay the liquid cooling board in electric core box bottom, arranges the electric core group in the liquid cooling board again on, and the temperature of battery is reduced through letting in the coolant liquid to the circulation in the liquid cooling board. In this kind of mode, the liquid cooling board only contacts with a side of electric core group, and the area of contact area accounts for less than what electric core group external surface area, and the cooling efficiency is low. Moreover, because the liquid cooling plate is usually placed at the bottom of the electric core group, the temperature difference between the upper part and the lower part of the same electric core group is large, the temperature distribution on the electric core group is uneven, and the consistency among the electric cores is affected. Still make the electric core that is in electric core group center relatively be in the electric core heat dissipation in the outside relatively poor, the heat distribution of whole electric core group is middle height, and both sides are low, further increases the difference in temperature on the electric core group, influences the uniformity between the electric core, finally influences performance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery module, this battery module not only can increase the area of contact of liquid cold plate and electric core group, have higher radiating efficiency, can also the heat transfer between the separation electric core, improve the uniformity of temperature between the electric core.
To achieve the purpose, the utility model adopts the following technical proposal:
a battery module, comprising: a plurality of cells; the liquid cooling plate is bent to form a plurality of accommodating cavities, the electric cores are arranged in the accommodating cavities in a one-to-one correspondence mode to form electric core groups, and the surfaces of the electric cores are all attached to the liquid cooling plate; the two end plates are respectively arranged at two ends of the electric core group; the connecting plates are covered on two opposite side surfaces of the electric core group, and two ends of each connecting plate are connected to the two end plates respectively.
As a preferred scheme of battery module, the liquid cold plate includes a plurality of partitions and a plurality of intercommunication, and is a plurality of the partition interval sets up, and adjacent two the partition respectively laminate in on two relative surfaces of electric core, the intercommunication communicates in adjacent two the partition makes the cross-sectional shape in holding chamber is the U-shaped, the intercommunication with the laminating of electric core, it is a plurality of the intercommunication will be a plurality of the partition is established ties in proper order.
As a preferred scheme of the battery module, a heat conducting medium is filled between the liquid cooling plate and the battery core.
As a preferred scheme of the battery module, the two ends of the electric core group are respectively provided with a first adhesive layer, and the end plate is adhered to the electric core group through the first adhesive layers.
As a preferred scheme of the battery module, the two opposite side surfaces of the electric core group are respectively provided with a second adhesive layer, and the connecting plate is bonded on the electric core group through the second adhesive layers.
As a preferred scheme of battery module, this battery module still includes the buffer layer, all be equipped with the buffer layer on two relative sides of electric core group, the buffer layer clamp is located electric core group with between the connecting plate.
As a preferred scheme of battery module, the both ends of liquid-cooling board are equipped with feed liquor end and play liquid end respectively, be equipped with the inlet on the feed liquor end, it is equipped with the liquid outlet on the play liquid end.
As a preferred scheme of the battery module, an interface slot is formed in the connecting plate, and the liquid inlet end and the liquid outlet end both extend out of the interface slot.
As a preferred scheme of the battery module, the battery module further includes an aluminum bar, and the aluminum bar is connected to the electrodes of the battery cells and used for connecting the battery cells in series or in parallel.
Another object of the present invention is to provide a battery, which has high heat dissipation efficiency and small internal temperature difference.
To achieve the purpose, the utility model adopts the following technical proposal:
a battery comprises the battery module of any one of the above technical schemes.
The utility model has the advantages that:
the utility model provides a battery module, this battery module includes electric core, liquid cooling board, end plate and connecting plate, and the liquid cooling board is buckled and is set up and form a plurality of holding chambeies, and a plurality of electric cores one-to-one set up in the holding chamber, and electric core and liquid cooling board form the electric core group jointly, have increased the area of contact of liquid cooling board and electric core, make the area of contact of liquid cooling board and electric core account for 40% -60% of electric core surface, have improved the radiating efficiency of this battery module by a wide margin; in addition, each electric core is arranged in the containing cavity, namely each electric core is wrapped by the liquid cooling plate and separated from other electric cores, and the heat of each electric core can be timely carried away by the liquid cooling plate, so that the consistency of the temperature among the electric cores is favorably maintained, and the heat transfer among the electric cores is also separated. Two end plates are arranged at two ends of the cell pack respectively, the two side surfaces opposite to the cell pack are covered with connecting plates, and two ends of each connecting plate are connected with the external structures of the cell pack formed on the two end plates respectively, so that the overall strength and rigidity of the battery module are enhanced.
Drawings
Fig. 1 is a schematic perspective view of a battery module according to an embodiment of the present invention;
fig. 2 is an exploded view of a battery module according to an embodiment of the present invention;
fig. 3 is a partial view of a battery module according to an embodiment of the present invention.
In the figure:
1. an electric core; 2. a liquid-cooled plate; 21. an accommodating cavity; 22. a partition portion; 23. a communicating portion; 24. a liquid inlet end; 241. a liquid inlet; 25. a liquid outlet end; 251. a liquid outlet; 3. the electric core group; 4. an end plate; 5. a connecting plate; 51. an interface slot; 6. and (4) aluminum bars.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the specific embodiments with reference to the drawings.
The embodiment provides a battery module, as shown in fig. 1 and fig. 2, this battery module includes a plurality of electric cores 1 and liquid cooling plate 2, as shown in fig. 3, liquid cooling plate 2 is buckled and is set up and form a plurality of holding chambeies 21, a plurality of electric cores 1 one-to-one sets up in holding chamber 21, two at least surfaces of electric core 1 are laminated on liquid cooling plate 2, a plurality of electric cores 1 and liquid cooling plate 2 form electric core group 3 jointly.
In this embodiment, because holding chamber 21 is arranged in to electric core 1, and two at least surfaces of electric core 1 laminate on liquid cooling plate 2, increased the area of contact of liquid cooling plate 2 with electric core 1 by a wide margin for the area of contact of liquid cooling plate 2 with electric core 1 is improved 40% -60% by a wide margin by less than 17% of accounting for electric core 1 external surface area, has improved the radiating efficiency of this battery module by a wide margin. Because every electric core 1 all arranges in a holding chamber 21, every electric core 1 all is wrapped up by liquid cooling plate 2 promptly, and every electric core 1's heat homoenergetic is in time taken away by liquid cooling plate 2, even when certain electric core 1 takes place the thermal runaway, liquid cooling plate 2 can take away the heat of its production fast, not only is favorable to slowing down the emergence of thermal runaway, has still kept the uniformity of electric core 1 temperature within a definite time. Simultaneously, because electric core 1 is wrapped up by liquid cooling plate 2 for electric core 1 is separated with other electric cores 1, has blockked the heat transfer between electric core 1, has avoided the influence of single electric core 1 temperature anomaly to other electric cores 1.
As shown in fig. 3, preferably, the liquid cooling plate 2 includes a plurality of partitions 22 and a plurality of communicating portions 23, the plurality of partitions 22 are disposed at parallel intervals, two adjacent partitions 22 are respectively attached to two opposite surfaces of the battery cell 1, the communicating portion 23 communicates with two adjacent partitions 22 to make the cross-sectional shape of the accommodating cavity 21 be U-shaped, the communicating portion 23 is attached to the battery cell 1 between the two partitions 22, and the plurality of communicating portions 23 connect the plurality of partitions 22 in series in sequence, so that the cooling liquid can sequentially flow through the plurality of battery cells 1 through the liquid cooling plate 2 and exchange heat, thereby cooling the battery cell 1.
More preferably, the communication portion 23 is perpendicular to the partition portion 22, so that the liquid cooling plate 2 is integrally in a concave-convex structure, that is, the cross-sectional shape of the liquid cooling plate 2 is concave-convex, and the cross-sectional shape of the accommodating cavity 21 is rectangular, which is convenient for the processing and forming of the liquid cooling plate 2. In this embodiment, electric core 1 is square electric core 1, and when electric core 1 was arranged in holding chamber 21, can be two relative surfaces of electric core 1 and laminate on liquid cooling board 2 (electric core 1 is pressed from both sides in holding chamber 21 promptly), can increase the area of contact of liquid cooling board 2 with electric core 1, is favorable to improving the radiating efficiency of this battery module. Preferably, when electric core 1 was arranged in holding chamber 21, three adjacent surface laminating of electric core 1 was on liquid cold plate 2 for liquid cold plate 2 can account for 50% of electric core 1 external surface area with the area of contact of electric core 1, is showing the area of contact that has increased liquid cold plate 2 and electric core 1, is favorable to improving the radiating efficiency of this battery module. It can be understood that, because the battery cell 1 is a square battery cell 1, the battery cell group 3 formed by the battery cells 1 and the liquid cooling plates 2 is also square, that is, the battery module is a square module.
In this embodiment, heat-conducting medium is filled between the liquid cooling plate 2 and the electric core 1, and the heat-conducting medium is filled in the gap between the liquid cooling plate 2 and the electric core 1, so that the heat transfer effect between the liquid cooling plate 2 and the electric core 1 can be improved, and the heat transfer efficiency is improved. Preferably, the heat-conducting medium has certain strength, such as a soaking plate, which can improve the heat transfer effect between the liquid cooling plate 2 and the battery cell 1 and enhance the overall rigidity of the battery module.
Preferably, two ends of the liquid cooling plate 2 are respectively provided with a liquid inlet end 24 and a liquid outlet end 25, the liquid inlet end 24 is provided with a liquid inlet 241, and the liquid inlet 241 is used for being communicated with a liquid inlet pipeline and used for introducing cooling liquid into the liquid cooling plate 2; the liquid outlet end 25 is provided with a liquid outlet 251, and the liquid outlet 251 is used for communicating with a liquid outlet pipeline and discharging the cooling liquid in the liquid cooling plate 2, so that the cooling liquid can be circularly introduced into the liquid cooling plate 2.
In this embodiment, this battery module still includes end plate 4 and connecting plate 5, and two end plates 4 set up respectively in the both ends of electric core group 3, and two sides that electric core group 3 set up relatively are located to two connecting plates 5 lid respectively, and the both ends of connecting plate 5 connect respectively on two end plates 4 for connecting plate 5 and end plate 4 interconnect form electric core group 3's exterior structure, are favorable to strengthening this battery module's bulk strength and rigidity. Preferably, the connection manner of the connection plate 5 and the end plate 4 is one of bonding, welding, riveting and bolting, so that the connection plate 5 and the end plate 4 are firmly connected. More preferably, the end plates 4 and the connecting plates 5 are made of metal, so that the strength is high, the rigidity is high, and the overall strength and rigidity of the battery module can be further enhanced.
Specifically, the both ends of electric core group 3 all are provided with first adhesive layer, and end plate 4 bonds on electric core group 3 through first adhesive layer for end plate 4 is great with electric core group 3's area of being connected, end plate 4 and electric core group 3's firm in connection. Preferably, all be equipped with the second adhesive layer on two opposite sides of electric core group 3, connecting plate 5 bonds on electric core group 3 through the second adhesive layer for connecting plate 5 is great with electric core group 3's area of being connected, and connecting plate 5 and electric core group 3's firm in connection.
Preferably, the connecting plate 5 is provided with two interface slots 51, and the liquid inlet end 24 and the liquid outlet end 25 respectively extend out of the two interface slots 51, so that the liquid inlet 241 is conveniently communicated with an external liquid inlet pipeline, and the liquid outlet 251 is conveniently communicated with an external liquid outlet pipeline. The two interface slots 51 may be located on the same web 5 or on different webs 5, which the skilled person may choose from depending on the circumstances.
In this embodiment, this battery module still includes the buffer layer, all is equipped with the buffer layer on two opposite flanks of electric core group 3, and the buffer layer presss from both sides and locates between electric core group 3 and connecting plate 5, can enough prevent that connecting plate 5 from causing the damage to electric core 1 and liquid cooling board 2 in the electric core group 3, can alleviate external collision again to this battery module's impact, improves this battery module's security.
Preferably, the battery module further comprises an aluminum bar 6, wherein the aluminum bar 6 is connected to the electrodes of the battery cells 1, and is used for connecting a plurality of battery cells 1 in series or in parallel. It should be noted that, in this embodiment, the number of the series-connected cells 1 or the number of the parallel-connected cells 1 is not specifically limited, and a person skilled in the art may design the number of the series-connected cells 1 or the number of the parallel-connected cells 1 according to an actual situation.
The embodiment also provides a battery, which comprises the battery module provided by the technical scheme, and the battery has high heat dissipation efficiency and small internal temperature difference because the battery comprises the battery module provided by the technical scheme.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A battery module, comprising:
a plurality of cells (1);
the liquid cooling plate (2) is bent to form a plurality of accommodating cavities (21), and the electric cores (1) are arranged in the accommodating cavities (21) in a one-to-one correspondence manner to form electric core groups (3);
the two end plates (4) are respectively arranged at two ends of the electric core group (3);
the connecting plates (5) are covered on two opposite side faces of the electric core group (3), and two ends of each connecting plate (5) are connected to the two end plates (4) respectively.
2. The battery module according to claim 1, wherein the liquid cooling plate (2) comprises a plurality of partitions (22) and a plurality of communication parts (23), the partitions (22) are arranged at intervals, two adjacent partitions (22) are respectively attached to two opposite surfaces of the battery cell (1), the communication parts (23) are communicated with two adjacent partitions (22) to enable the cross-sectional shape of the accommodating cavity (21) to be U-shaped, the communication parts (23) are attached to the battery cell (1), and the plurality of communication parts (23) connect the partitions (22) in series in sequence.
3. The battery module according to claim 1, characterized in that a heat-conducting medium is filled between the liquid-cooled plate (2) and the battery cell (1).
4. The battery module according to claim 1, wherein the two ends of the electric core assembly (3) are provided with first adhesive layers, and the end plate (4) is adhered to the electric core assembly (3) through the first adhesive layers.
5. The battery module according to claim 1, wherein a second adhesive layer is disposed on each of two opposite sides of the electric core assembly (3), and the connecting plate (5) is adhered to the electric core assembly (3) through the second adhesive layer.
6. The battery module according to claim 1, further comprising buffer layers, wherein the buffer layers are disposed on two opposite sides of the electric core assembly (3), and the buffer layers are sandwiched between the electric core assembly (3) and the connecting plate (5).
7. The battery module according to claim 1, wherein a liquid inlet end (24) and a liquid outlet end (25) are respectively arranged at two ends of the liquid cooling plate (2), a liquid inlet (241) is arranged on the liquid inlet end (24), and a liquid outlet (251) is arranged on the liquid outlet end (25).
8. The battery module according to claim 7, wherein the connecting plate (5) is provided with an interface slot (51), and the liquid inlet end (24) and the liquid outlet end (25) both extend out of the interface slot (51).
9. The battery module according to claim 1, further comprising an aluminum bar (6), wherein the aluminum bar (6) is connected to the electrodes of the battery cells (1) and is used for connecting a plurality of the battery cells (1) in series or in parallel.
10. A battery comprising the battery module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021566976.2U CN212625775U (en) | 2020-07-31 | 2020-07-31 | Battery module and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021566976.2U CN212625775U (en) | 2020-07-31 | 2020-07-31 | Battery module and battery |
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| Publication Number | Publication Date |
|---|---|
| CN212625775U true CN212625775U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021566976.2U Active CN212625775U (en) | 2020-07-31 | 2020-07-31 | Battery module and battery |
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| CN (1) | CN212625775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111786052A (en) * | 2020-07-31 | 2020-10-16 | 湖北亿纬动力有限公司 | Battery module and battery |
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2020
- 2020-07-31 CN CN202021566976.2U patent/CN212625775U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111786052A (en) * | 2020-07-31 | 2020-10-16 | 湖北亿纬动力有限公司 | Battery module and battery |
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