CN215816100U - Battery module and battery pack - Google Patents

Battery module and battery pack Download PDF

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Publication number
CN215816100U
CN215816100U CN202121279266.6U CN202121279266U CN215816100U CN 215816100 U CN215816100 U CN 215816100U CN 202121279266 U CN202121279266 U CN 202121279266U CN 215816100 U CN215816100 U CN 215816100U
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heat
battery cell
battery
sides
battery module
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吴斌
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Shanghai Cenat New Energy Co Ltd
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Shanghai Cenat New Energy Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The utility model provides a battery module and a battery pack, which comprise a plurality of battery cores which are arranged and distributed along a first direction; further comprising: the radiating fins are arranged between at least one pair of adjacent electric cores and extend out of two sides of the electric cores along the second direction; the second direction is perpendicular to the first direction; the heat conducting glue is attached to two sides of the battery cell along the second direction and is attached to the radiating fins; the shell comprises two heat management pieces which are respectively arranged on two sides of the battery cell in the second direction, and the heat management pieces are attached to the heat-conducting glue. The battery pack includes a battery module. By adopting the technical scheme, the radiating fins extend out of two sides of the battery cell in the second direction, and the heat conducting glue is attached to the battery cell and the radiating fins and is attached to the two heat management pieces; therefore, heat generated by the battery cell can be efficiently conducted to the heat management pieces on the two sides of the battery cell sequentially through the radiating fins and the heat conducting glue, the radiating efficiency of the battery cell is improved, and the highest temperature of the battery cell can be quickly and greatly reduced.

Description

Battery module and battery pack
Technical Field
The utility model belongs to the technical field of battery thermal management, and particularly relates to a battery module and a battery pack.
Background
With the development of new energy electric vehicles, people have higher and higher requirements on the thermal management of the battery cell, and there are two general thermal management schemes related to the battery cell on the market at present: one side of the battery cell in the thickness direction is used as a heat dissipation surface, and the heat dissipation surface transfers heat to the liquid cooling plate through heat conduction glue; and secondly, the aluminum plate is attached to the battery cell, and the heat of the battery cell is directly transferred to the liquid cooling plate through the aluminum plate. Above two kinds of schemes, the radiating effect of electric core is all relatively poor, when electric core carries out big multiplying power charge-discharge, and the unable high-efficient heat dissipation of electric core leads to rising temperature too high to make the use of vehicle limited.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the embodiment of the utility model is as follows: the utility model provides a battery module, aims at solving prior art, and electric core radiating effect is relatively poor leads to the limited technical problem of use of vehicle.
In order to solve the technical problem, the embodiment of the utility model adopts the technical scheme that:
the battery module comprises a plurality of battery cores which are arranged and distributed along a first direction; the battery module still includes:
the radiating fins are arranged between at least one pair of adjacent electric cores and extend out of two sides of the electric cores along the second direction; the second direction is perpendicular to the first direction;
the heat conducting glue is attached to two sides of the battery cell along the second direction and is attached to the radiating fins;
the shell comprises two heat management pieces which are respectively arranged on two sides of the battery cell in the second direction, and the heat management pieces are attached to the heat-conducting glue.
By adopting the technical scheme, the radiating fins extend out of two sides of the battery cell along the second direction, and the heat conducting glue is attached to the battery cell and the radiating fins and is attached to the heat management piece; therefore, heat generated by the battery cell in the working process can be conducted to the heat management parts on the two sides of the battery cell sequentially through the radiating fins and the heat conducting glue. The radiating fins are arranged between the adjacent electric cores, so that the contact area between the radiating fins and the electric cores is increased, and the heat generated by the electric cores can be more efficiently transferred to the radiating fins; heat conducting glue is attached to the two sides of the battery cell in the second direction, and the heat conducting glue on the two sides of the battery cell is respectively attached to the two heat management pieces, so that the heat management pieces are more fully contacted with the heat conducting glue, and the heat of the battery cell can be efficiently transferred to the two heat management pieces; so, improved the radiating efficiency of electric core, satisfied the quick heat dissipation requirement of battery module, can also reduce the highest temperature of electric core fast and by a wide margin, promote the life of battery module, guarantee the use of vehicle.
In one embodiment, the heat sink includes a first heat sink portion and two second heat sink portions respectively disposed at two ends of the first heat sink portion along a second direction, the first heat sink portion is disposed between at least one pair of adjacent cells, and the second heat sink portion extends out of the cells along the second direction and wraps up in the thermal conductive adhesive.
Through adopting above-mentioned technical scheme for the second heat dissipation part wraps up in the heat-conducting glue, has guaranteed the contact between second heat dissipation part and the heat-conducting glue, thereby has guaranteed the heat conduction of second heat dissipation part to the efficiency on the heat-conducting glue, thereby has improved the heat-conduction efficiency of electric core.
In one embodiment, the battery cell comprises a battery cell body and two curled edges respectively arranged at two sides of the battery cell body along the second direction, and the cooling fin is arranged between at least one pair of adjacent battery cell bodies; the heat-conducting glue is attached to two sides of the battery cell monomer along the second direction and filled in gaps formed between the radiating fin and the battery cell monomer and between the turned edge and the battery cell monomer.
Through adopting above-mentioned technical scheme, guaranteed turn-up and heat conduction glue between, fin and heat conduction glue between, monomer electricity core and the heat conduction glue between the contact to the heat conduction efficiency that electric core goes on through heat conduction glue has been guaranteed, thereby has improved the radiating effect of battery module.
In one embodiment, the heat sink is flush with the rolled edge in the second direction, or the rolled edge protrudes beyond the heat sink in the second direction.
By adopting the technical scheme, the second heat dissipation part can be ensured to protrude out of the battery cell single body along the second direction, and the second heat dissipation part can be ensured to be wrapped in the heat-conducting glue, so that the second heat dissipation part is ensured to be in contact with the heat-conducting glue; and, still prevent that the second heat sink part from protruding the hem along the second direction outward, when filling the heat-conducting glue between second heat sink part and thermal management spare, can reduce the holistic volume of battery module as far as possible to help the promotion of the volume energy density of battery module.
In one embodiment, the casing further includes two protection plates respectively disposed on two sides of the battery cell in the first direction, and a first buffer member is supported between the protection plates and the battery cell.
Through adopting above-mentioned technical scheme, realize the guard action to electric core, simultaneously for first bolster can provide appropriate cushioning effect for electric core when electric core emergence inflation, thereby absorbs the inflation of electric core, guarantees the normal use of electric core.
In one embodiment, the plurality of battery cells form at least two battery cell groups distributed along the first direction, and one battery cell group comprises two battery cells and a heat sink arranged between the two battery cells.
Through adopting above-mentioned technical scheme for be equipped with a fin between two liang of electric cores in a plurality of electric cores, reduced the volume of battery module, help the promotion of the energy density of battery module, simultaneously, still make every electric core can both contact in the fin, thereby make every electric core can both pass through the fin and heat-conducting glue with heat conduction to thermal management spare on, so, guaranteed the heat conduction efficiency of whole battery module.
In one embodiment, a second buffer member abuts between two adjacent electric core groups.
Through adopting above-mentioned technical scheme for every electric core all contacts and has the second bolster, like this, when electric core emergence inflation, the second bolster can provide appropriate cushioning effect for electric core, thereby absorbs the inflation of electric core, guarantees the use of electric core, thereby further improved the protection to electric core.
In one embodiment, the second buffer member is provided with heat conducting sheets on both sides in the first direction, and heat conducting glue is attached to the heat conducting sheets; or the second buffer piece is a heat conduction structure.
Through adopting above-mentioned technical scheme, on the basis of guaranteeing the buffering protection between the adjacent electric core group, can also make the heat of electric core conduct to the heat conduction glue through the second bolster or through the conducting strip on the second bolster, conduct to the thermal management spare through the heat conduction glue at last to the thermal management efficiency of electric core has further been improved.
In one embodiment, the thermal management member is provided with a liquid cooling flow passage, or the thermal management member is used for connecting an external liquid cooling structure.
Through adopting above-mentioned technical scheme for electric core conducts the heat on heat pipe reason piece and the coolant liquid on the heat pipe reason piece through heat conduction glue and carries out the heat transfer, perhaps carries out the heat transfer with the liquid cooling structure on the heat pipe reason piece, thereby guarantees the radiating effect of battery module.
The embodiment of the utility model also provides a battery pack which comprises the battery module.
Through adopting above-mentioned technical scheme, make the fin stretch out along the ascending both sides of second side from electric core, heat conduction glue is attached to the both sides of electric core, fin and heat management spare, then the heat of electric core can be through heat conduction glue conduction to the heat management spare of electric core both sides, the radiating effect of two heat management spares, make electric core can realize the heat management fast, the radiating efficiency of electric core has been improved, satisfy the quick heat dissipation requirement of battery module, can also reduce the highest temperature of electric core fast and by a wide margin, promote the life of battery module, guarantee the use of vehicle.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a perspective view of a battery module according to an embodiment of the present invention;
fig. 2 is a partially enlarged view of fig. 1.
Wherein, in the figures, the respective reference numerals:
10-electric core; 11-cell monomer; 12-crimping; 20-a heat sink; 21-a first heat sink portion; 22-a second heat sink portion; 30-heat conducting glue; 40-a housing; 41-a thermal management; 42-protective plate; 50-a first buffer; 60-a second buffer; x-a first direction; y-second direction.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
The following detailed description is made with reference to the specific drawings and examples.
Referring to fig. 1, a battery module according to an embodiment of the present invention includes a plurality of battery cells 10, a heat sink 20, a thermal conductive adhesive 30, and a housing 40. The plurality of battery cells 10 are arranged and distributed in the casing 40 along the first direction X. The heat sink 20 is disposed between at least one pair of adjacent battery cells 10 along the first direction X, and it can be understood that the heat sink 20 is disposed between at least one pair of adjacent battery cells 10, and the heat sink 20 extends out of two sides of the battery cells 10 along the second direction Y; wherein the second direction Y is perpendicular to the first direction X. The heat conducting glue 30 is attached to two sides of the battery cell 10 along the second direction Y and is attached to the heat sink 20; it can be understood that, the battery cell 10 has the thermal conductive adhesive 30 on both sides along the second direction Y, and the thermal conductive adhesive 30 is attached to the battery cell 10 and the heat sink 20 at the same time, so as to ensure the heat conduction efficiency between the battery cell 10 and the thermal conductive adhesive 30, and between the heat sink 20 and the thermal conductive adhesive 30. The casing 40 includes two thermal management members 41 spaced apart from each other along the second direction Y, where the two thermal management members 41 are respectively disposed on two sides of the plurality of battery cells 10 along the second direction Y, and it can be understood that the plurality of battery cells 10 are arranged between the two thermal management members 41; the thermal management members 41 are attached to the thermal conductive adhesive 30, and it can be understood that the two thermal management members 41 are respectively attached to the thermal conductive adhesive 30 on the two sides of the electrical core 10, so that the thermal conductive adhesive 30 is filled between the thermal management members 41 and the electrical core 10 and between the thermal management members 41 and the heat dissipation fins 20. It should be noted here that most of the heat of the battery cell 10 is conducted to the heat sink 20 through the side surface of the battery cell 10 in the first direction X, the heat is conducted to both ends of the heat sink 20 in the second direction Y, and is conducted to the heat conducting adhesives 30 on both sides of the battery cell 10 in the second direction Y, and finally conducted to the heat management member 41 through the heat conducting adhesives 30, so as to dissipate most of the heat of the battery cell 10; a small amount of heat of the battery cell 10 is directly conducted to the heat conductive adhesive 30 on two sides of the battery cell 10 through two sides of the battery cell 10 in the second direction Y, and then conducted to the heat management member 41 through the heat conductive adhesive 30.
In a specific embodiment, the heat sink 20 can be configured as a sheet-like heat dissipation structure such as an aluminum sheet, a copper sheet, or the like.
In the embodiment of the present invention, by adopting the above technical scheme, the heat dissipation plate 20 extends out of two sides of the battery cell 10 along the second direction Y, and the heat conductive adhesive 30 is attached to the battery cell 10 and the heat dissipation plate 20 and is attached to the heat management member 41; therefore, the heat conducting glue 30 is filled between the heat management part 41 and the heat dissipation fin 20 and between the heat management part 41 and the battery cell 10, heat generated by the battery cell 10 in the working process can be sequentially conducted to the heat management part 41 on two sides of the battery cell 10 through the heat dissipation fin 20 and the heat conducting glue 30, and can also be directly conducted to the heat management part 41 through the heat conducting glue 30, so that the quick heat dissipation effect of the battery cell 10 is realized. It should be noted here that, the heat dissipation plate 20 is disposed between two adjacent battery cells 10 arranged along the first direction X, so that the side surface of the battery cell 10 along the first direction X directly contacts the heat dissipation plate 20, the contact area between the heat dissipation plate 20 and the battery cell 10 is increased, the heat conduction efficiency between the battery cell 10 and the heat dissipation plate 20 is improved, and the heat generated by the battery cell 10 can be more efficiently transferred to the heat dissipation plate 20. Moreover, the two sides of the electrical core 10 in the second direction Y are both adhered with the thermal conductive adhesive 30, the thermal conductive adhesives 30 on the two sides of the electrical core 10 are respectively attached to the two thermal management pieces 41, and the arrangement of the thermal conductive adhesive 30 enables the thermal conductive adhesive 30 to be better filled between the electrical core 10 and the thermal management pieces 41 and between the heat dissipation plate 20 and the thermal management pieces 41, and meanwhile, the thermal management pieces 41 are more fully contacted with the thermal conductive adhesive 30, which is beneficial to improving the efficiency of the thermal conductive adhesive 30 in rapidly transferring the heat on the electrical core 10 or the heat on the heat dissipation plate 20 to the thermal management pieces 41; in addition, the two sides of the battery cell 10 in the second direction Y are both provided with the thermal management members 41, so that heat on the battery cell 10 can be efficiently transferred to the two thermal management members 41, and thermal management is performed through the two thermal management members 41, which improves the thermal management efficiency of the battery cell 10 compared with the arrangement of one thermal management member 41. So, fin 20 stretches out, heat-conducting glue 30 and two heat management spare 41's setting from electric core 10 along both sides on the second direction Y for electric core 10 can realize the heat pipe reason fast, has improved electric core 10's radiating efficiency, satisfies the quick heat dissipation requirement of battery module, can also reduce electric core 10's the highest temperature fast and by a wide margin, promotes the life of battery module, guarantees the use of vehicle.
In an embodiment, referring to fig. 1 and fig. 2, the heat sink 20 includes a first heat sink portion 21 and two second heat sink portions 22, and the two second heat sink portions 22 are respectively disposed at two ends of the first heat sink portion 21 along the second direction Y. The first heat dissipation portions 21 are disposed between at least one pair of adjacent battery cells 10 along the first direction X, and the two second heat dissipation portions 22 respectively extend out of two sides of the battery cells 10 along the second direction Y. The two sides of the battery cell 10 in the second direction Y are attached with the heat conducting glue 30, the heat conducting glue 30 on the two sides of the battery cell 10 is respectively filled between the second heat dissipation part 22 and the thermal management part 41, the heat conducting glue 30 is further filled on the two sides of the second heat dissipation part 22 in the first direction X, and specifically, the second heat dissipation part 22 is wrapped in the heat conducting glue 30. It should be noted here that heat on the battery cell 10 is conducted to the second heat dissipation part 22 through the first heat dissipation part 21, then conducted to the heat conductive adhesive 30 through the second heat dissipation part 22, and finally conducted to the heat management member 41, so as to achieve heat management of the battery cell 10. Through adopting above-mentioned technical scheme for second heat sink part 22 has guaranteed the contact between second heat sink part 22 and the heat-conducting glue 30 in the heat-conducting glue 30 of parcel, thereby has guaranteed the heat conduction of second heat sink part 22 to the efficiency on the heat-conducting glue 30, thereby has improved electric core 10's heat-conduction efficiency.
In a specific embodiment, the heat sink 20 is an integrally formed sheet structure, so that the forming process of the heat sink 20 is simplified, and meanwhile, the conduction efficiency of heat conducted from the first heat sink 21 to the second heat sink 22 is ensured, thereby improving the heat management efficiency of the battery cell 10.
In an embodiment, referring to fig. 1 and fig. 2, the battery cell 10 includes a battery cell 11 and two beads 12, where the two beads 12 are respectively disposed on two sides of the battery cell 11 along the second direction Y; the battery cell monomer 11 forms a seal edge after the edge sealing treatment is completed, and the seal edge forms the above-mentioned curled edge 12 after being hemmed. The first heat dissipation portion 21 of the heat sink 20 is provided between at least one pair of adjacent battery cells 11. The thermal conductive adhesive 30 is attached to two sides of the cell unit 11 along the second direction Y, and is attached to the second heat dissipation portion 22 of the heat sink 20, it can be understood that the thermal conductive adhesive 30 is filled between the cell unit 11 and the thermal management member 41, between the bead 12 and the thermal management member 41, and between the second heat dissipation portion 22 of the heat sink 20 and the thermal management member 41, so that the thermal conductive adhesive 30 is further filled in the gap formed between the second heat dissipation portion 22 of the heat sink 20 and the cell unit 11, and between the bead 12 and the cell unit 11. Therefore, by adopting the above technical scheme, the contact between the turned edge 12 and the heat conducting glue 30, between the radiating fin 20 and the heat conducting glue 30, and between the single battery cell 10 and the heat conducting glue 30 is ensured, so that the heat conduction efficiency of the battery cell 10 through the heat conducting glue 30 is ensured, and the heat radiation effect of the battery module is improved.
In the present embodiment, the first direction X is a thickness direction of the battery cell 10, the second direction Y is a width direction of the battery cell 10, and the tabs of the battery cell 10 are disposed on two sides of the battery cell 10 along the length direction. Of course, in other embodiments, the actual directions of the first direction X and the second direction Y may also be designed according to actual needs, where the length direction, the width direction, and the thickness direction of the battery cells 10 are not limited exclusively, and it can be understood that the first direction X is a distribution direction of the plurality of battery cells 10, and the second direction Y is a direction perpendicular to the first direction X; then, the first direction X may be set as a longitudinal direction or a width direction, and the second direction Y may be set as a thickness direction or a longitudinal direction.
In an embodiment, referring to fig. 1 and fig. 2, the second heat dissipation portion 22 of the heat dissipation plate 20 is flush with the turned edge 12 along the second direction Y, so as to ensure that the second heat dissipation portion 22 can protrude out of the battery cell 11 along the second direction Y, ensure that the second heat dissipation portion 22 can be wrapped in the heat conductive adhesive 30, and ensure that the second heat dissipation portion 22 and the heat conductive adhesive 30 are in contact; in addition, the second heat dissipation part 22 is prevented from protruding out of the turned edge 12 along the second direction Y, on the basis that the heat conduction glue 30 is filled between the turned edge 12 and the heat management member 41, and when the heat conduction glue 30 is filled between the second heat dissipation part 22 and the heat management member 41, the thickness of the heat conduction glue 30 between the heat management member 41 and the turned edge 12 along the second direction Y can be reduced as much as possible, that is, the whole volume of the battery module is reduced, so that the increase of the volume energy density of the battery module is facilitated. Of course, in another embodiment, the relationship of the heat sink 20 and the rolled edge 12 may also be arranged as: the rolled edge 12 protrudes out of the heat dissipation sheet 20 in the second direction Y, so that the volume of the whole battery module can be reduced on the basis of ensuring that the heat conductive adhesive 30 wraps the second heat dissipation part 22.
In an embodiment, referring to fig. 1 and fig. 2, the outer casing 40 further includes two protection plates 42 spaced apart from each other along the first direction X, where the two protection plates 42 are respectively disposed on two sides of the battery cell 10 along the first direction X to achieve a protection effect on the battery cell 10, and it can be understood that the battery cells 10 are arranged and distributed between the two protection plates 42 along the first direction X. The first buffer member 50 is supported between the protection plate 42 and the battery cell 10, so that the first buffer member 50 can provide a proper buffer effect for the battery cell 10 when the battery cell 10 expands, thereby absorbing the expansion of the battery cell 10 and ensuring the normal use of the battery cell 10. In this embodiment, the first buffer member 50 can be a buffer member having a buffering function, such as foam or silicone.
In one embodiment, referring to fig. 1, a plurality of battery cells 10 form at least two battery cells 10, and at least two battery cells 10 are arranged along the first direction X. An electricity core 10 group includes two electric cores 10 that distribute along first direction X and locates the fin 20 between two electric cores 10, thus, be equipped with a fin 20 between two liang of electric cores 10 in a plurality of electric cores 10, compare in all being equipped with the scheme of a fin 20 between two adjacent electric cores 10, the volume of battery module has been reduced, help the promotion of the energy density of battery module, and simultaneously, still make every electric core 10 can both contact in fin 20, thereby make every electric core 10 can both be through fin 20 with heat conduction glue 30 with heat conduction to thermal management spare 41, thus, the heat conduction efficiency of every electric core 10 has been guaranteed, thereby the heat conduction efficiency of whole battery module has been guaranteed. Of course, in other embodiments, the battery module may also be configured such that the heat dissipation fins 20 are disposed between two adjacent battery cells 10, so as to improve the heat dissipation effect of the battery module more greatly.
In one embodiment, referring to fig. 1, a second buffer 60 is abutted between two adjacent battery cell groups 10. Through adopting above-mentioned technical scheme for every electric core 10 all contacts there is second bolster 60, and like this, when electric core 10 takes place the inflation, second bolster 60 can provide suitable cushioning effect for electric core 10, thereby absorbs the inflation of electric core 10, guarantees the use of electric core 10, thereby has further improved the protection to electric core 10.
In an embodiment, referring to fig. 1 and fig. 2, heat conductive sheets (not shown) are disposed on two sides of the second buffer 60 along the first direction X, the heat conductive sheets on two sides of the second buffer 60 are respectively contacted with the battery cells 10 of the two battery cell groups 10, and the heat conductive sheets are contacted with the heat conductive adhesive 30, so that, on the basis of ensuring the buffer protection between the adjacent battery cell groups 10, the heat of the battery cell 10 can be conducted to the heat conductive adhesive 30 through the heat conductive sheets on the second buffer 60, and finally conducted to the heat management element 41 through the heat conductive adhesive 30, thereby further improving the heat management efficiency of the battery cell 10. In this embodiment, the second buffer 60 can be a buffer having a buffering function, such as foam or silicone. Alternatively, in another embodiment, the second dampener 60 is provided as a thermally conductive structure. Therefore, the second buffer 60 integrates the buffering performance and the heat conductivity, and can provide the buffering protection effect and the heat conductivity effect for the battery cell 10 at the same time, so that the heat conduction efficiency of the battery cell 10 is further improved while the battery cell 10 is protected. In this embodiment, the second buffer 60 can be a foamed silicone or other heat conducting structure.
In an embodiment, referring to fig. 1, a liquid cooling runner is disposed on the thermal management member 41, so that an external liquid cooling system can circulate cooling liquid in the liquid cooling runner of the thermal management member 41, and when heat of the battery cell 10 is conducted to the thermal management member 41 through the heat conducting adhesive 30, the heat on the thermal management member 41 exchanges heat with the cooling liquid, so as to achieve heat dissipation on the thermal management member 41, that is, achieve heat dissipation of the battery cell 10, and ensure a heat dissipation effect of the battery cell 10. Of course, in other embodiments, the thermal management member 41 may also be configured to be connected to an external liquid cooling structure, so that when the heat of the battery cell 10 is conducted to the thermal management member 41 through the thermal conductive adhesive 30, the heat on the thermal management member 41 is conducted to the liquid cooling structure, thereby achieving a heat dissipation effect, and ensuring a heat dissipation effect of the battery cell 10.
The embodiment of the utility model also provides a battery pack which comprises the battery module. The battery module in this embodiment is the same as the battery module in the previous embodiment, and please refer to the description related to the battery module in the previous embodiment, which is not repeated herein. Through adopting the above-mentioned improvement scheme to the battery module, make fin 20 stretch out from electric core 10 along the both sides on the second direction Y, heat-conducting glue 30 is attached to the both sides of electric core 10, fin 20 and thermal management spare 41, then the heat of electric core 10 can be conducted to the thermal management spare 41 of electric core 10 both sides through heat-conducting glue 30 on, the radiating effect of two thermal management spare 41, make electric core 10 can realize the thermal management fast, the radiating efficiency of electric core 10 has been improved, satisfy the quick heat dissipation requirement of battery module, can also reduce the highest temperature of electric core 10 fast and by a wide margin, promote the life of battery module, guarantee the use of vehicle.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A battery module comprises a plurality of battery cores which are arranged and distributed along a first direction; characterized in that, the battery module still includes:
the radiating fins are arranged between at least one pair of adjacent electric cores and extend out of two sides of the electric cores along a second direction; the second direction is perpendicular to the first direction;
the heat conducting glue is attached to two sides of the battery cell along the second direction and is attached to the heat dissipation sheet;
and the shell comprises two heat management pieces which are respectively arranged on the two sides of the battery cell in the second direction, and the heat management pieces are attached to the heat-conducting glue.
2. The battery module of claim 1, wherein the heat sink includes a first heat sink portion and two second heat sink portions respectively disposed at two ends of the first heat sink portion along the second direction, the first heat sink portion is disposed between at least one pair of adjacent cells, and the second heat sink portion extends out of the cells along the second direction and is wrapped in the thermally conductive adhesive.
3. The battery module of claim 1, wherein the battery cell comprises a cell unit and two beads respectively disposed on two sides of the cell unit along the second direction, and the heat sink is disposed between at least one pair of adjacent cell units; the heat-conducting glue is attached to two sides of the battery cell monomer along the second direction and filled in gaps formed between the radiating fin and the battery cell monomer and between the turned edge and the battery cell monomer.
4. The battery module of claim 3, wherein the heat sink is flush with the bead in the second direction or the bead protrudes out of the heat sink in the second direction.
5. The battery module of claim 1, wherein the housing further includes two protection plates respectively disposed on two sides of the battery cell in the first direction, and a first buffer member abuts against the battery cell between the protection plates and the battery cell.
6. The battery module of any of claims 1-5, wherein a plurality of the cells form at least two groups of cells arranged in the first direction, and one group of the cells comprises two of the cells and the heat sink disposed between the two of the cells.
7. The battery module according to claim 6, wherein a second buffer member abuts between two adjacent electric core groups.
8. The battery module according to claim 7, wherein the second buffer member is provided with heat conductive sheets on both sides in the first direction, the heat conductive sheets being attached with the heat conductive paste; or, the second buffer part is a heat conduction structure.
9. The battery module of any one of claims 1-5, wherein the thermal management member defines a liquid cooling channel, or the thermal management member is configured to connect to an external liquid cooling structure.
10. A battery pack comprising the battery module according to any one of claims 1 to 9.
CN202121279266.6U 2021-06-08 2021-06-08 Battery module and battery pack Active CN215816100U (en)

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CN202121279266.6U CN215816100U (en) 2021-06-08 2021-06-08 Battery module and battery pack

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Application Number Priority Date Filing Date Title
CN202121279266.6U CN215816100U (en) 2021-06-08 2021-06-08 Battery module and battery pack

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CN202121279266.6U Active CN215816100U (en) 2021-06-08 2021-06-08 Battery module and battery pack

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024078177A1 (en) * 2022-10-11 2024-04-18 欣旺达动力科技股份有限公司 Battery module, battery pack and electric device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024078177A1 (en) * 2022-10-11 2024-04-18 欣旺达动力科技股份有限公司 Battery module, battery pack and electric device

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