CN213184419U - Battery pack and vehicle - Google Patents
Battery pack and vehicle Download PDFInfo
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- CN213184419U CN213184419U CN202120684758.7U CN202120684758U CN213184419U CN 213184419 U CN213184419 U CN 213184419U CN 202120684758 U CN202120684758 U CN 202120684758U CN 213184419 U CN213184419 U CN 213184419U
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- heat dissipation
- connecting element
- dissipation channel
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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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model relates to a battery heat dissipation technical field provides a battery pack and vehicle, battery pack, including at least one group battery, the group battery includes: at least two batteries, the batteries comprising two electrode posts; a connecting member having a first end connected to one electrode post of one of the adjacent two batteries and a second end opposite to the first end connected to one electrode post of the other of the adjacent two batteries; wherein, connecting element still includes the arch portion, forms first heat dissipation channel between arch portion and the battery. A first heat dissipation channel is formed between the connecting element and the battery, and therefore heat generated by the battery during working flows out through the first heat dissipation channel. The heat-generating transfer speed of the battery and the circulation speed of air are accelerated through the battery assembly, and the heat dissipation effect of the battery assembly is improved.
Description
Technical Field
The utility model relates to a battery heat dissipation technical field particularly, involves a battery pack and a vehicle.
Background
At present, a high-capacity and high-voltage battery system used in an electric automobile and an energy storage system releases a large amount of reaction heat in the charging and discharging process, however, the gap between the batteries is small, the air flowing direction cannot be guaranteed through the gap, the air flowing direction cannot be accurately controlled, a closed loop cannot be formed in the air moving direction, or an eddy mode of air flowing occurs, and the air-cooled cooling efficiency is remarkably reduced.
SUMMERY OF THE UTILITY MODEL
The present invention aims at least solving one of the technical problems existing in the prior art or the related art.
To this end, a first object of the present invention is to provide a battery pack.
A second object of the present invention is to provide a vehicle.
In view of the above, a first object of the present invention is to provide a battery assembly, including at least one battery pack, the battery pack including: at least two batteries, the batteries comprising two electrode posts; a connecting member having a first end connected to one electrode post of one of the adjacent two batteries and a second end opposite to the first end connected to one electrode post of the other of the adjacent two batteries; wherein, connecting element still includes the arch portion, forms first heat dissipation channel between arch portion and the battery.
The utility model provides a battery pack, including at least one group battery and connecting element. The battery pack comprises at least two batteries, the batteries comprise two electrode columns, the at least two batteries are placed in parallel to form a battery pack capable of being charged and discharged, two ends of the electrode columns of the two adjacent batteries are connected with the first end and the second end of the connecting element respectively, and the connecting element is connected with the electrode columns of the adjacent batteries in the same row or connected with the electrode columns of the adjacent batteries in the same row due to the fact that the batteries are arranged in multiple rows and multiple columns, namely, the arched part is located above a gap between the two adjacent batteries. Through setting up the clearance top between two adjacent batteries with hunch-up portion, realized the clearance between hunch-up portion and the adjacent battery and formed first heat dissipation channel, and then can come out the heat that produces in the battery working process fast to carry out heat exchange with the air between battery and hunch-up portion, the circulation of rethread first heat dissipation channel is gone out, avoids the air vortex to flow, leads to the circulation of air not smooth, reduces battery pack's radiating efficiency.
Specifically, two adjacent batteries are connected through the connecting element, and form first heat dissipation channel with the clearance between the adjacent battery, in the battery pack working process, the reaction heat that the battery produced passes through contact heat-conduction transmission and gives connecting element, directly carry out the heat exchange with the air after producing heat with traditional battery, the thermal transmission efficiency of battery has been accelerated, battery heat carries out the heat exchange back with the air in first heat dissipation channel simultaneously, discharge along first heat dissipation channel, battery work production heat exhaust speed has effectively been improved. The problem of among the prior art battery clearance can't ensure the air flow direction, and then lead to the unable closed loop that forms of air motion direction to and the air flow is with the problem that the vortex mode appears is solved, the utility model provides a battery pack simple structure is reliable, and it is convenient to dismantle, can accelerate the circulation speed of the calorifacient transmission speed of battery and air, improves battery pack's radiating effect.
Additionally, the utility model provides an among the above-mentioned technical scheme battery pack can also have following additional technical characteristics:
in the technical scheme, the electrode column is positioned at the top of the battery, and the arch part is positioned above the gap between two adjacent batteries.
In this technical scheme, set up the electrode post at the top of battery, and be connected with the electrode post through connecting element, because connecting element is provided with hunch portion, hunch portion just lies in the top in gap between two adjacent batteries like this, in order to realize the clearance between hunch portion and the adjacent battery and form first heat dissipation channel, therefore, the heat that battery work produced passes through contact heat transfer and gives connecting element, because hot gas density is low, upwards the diffusion carries out heat exchange with the air between battery and hunch portion, the first heat dissipation channel circulation of rethread is gone out, effectively avoid the air vortex flow, lead to the circulation of air not smooth, reduce battery pack's radiating efficiency, through setting up the electrode post at the top of battery, can play better radiating effect, promote battery pack's radiating effect.
In any of the above technical solutions, further, the height of the arch part is not less than 5 mm; the width between the arch-shaped starting end and the arch-shaped ending end of the arch part in the direction perpendicular to the gap between two adjacent batteries is more than or equal to 10 mm.
In this embodiment, the arch size of the arch portion specifically includes an arch width and a height, and the arch width is a width from a start end to an end of the arch in a direction perpendicular to a gap between two adjacent batteries. The width between the arch starting end and the arch ending end of the arch part, namely the arch span of the arch part, and the height of the arch part are specifically set within a certain range, so that the heat dissipation efficiency of the first heat dissipation channel can be effectively improved. Specifically, the span of the arch part is 10mm or more, and the height of the arch part is 5mm or more. Based on the series connection element, the heat dissipation efficiency and the comprehensive consideration of space, on one hand, the heat dissipation area maximization of the arch part can be effectively ensured, the heat exchange speed is maximized, and the heat dissipation efficiency of the battery pack is improved. On the other hand, can guarantee the maximize in first heat dissipation channel space, and then realize the accurate control to air flow direction for circulation of air speed, the radiating efficiency of power supply module is promoted, simultaneously because hunch portion simple structure, height and width are easily adjusted, easy to operate, the effectual manufacturing cost that has reduced.
In any of the above technical solutions, further, the battery module further includes: the cover plate is arranged above the connecting element, a second heat dissipation channel is formed between the cover plate and the connecting element, and the gas flow directions of the first heat dissipation channel and the second heat dissipation channel are the same.
In this solution, the battery assembly further includes a cover plate. The cover plate is arranged above the connecting element and has a certain gap, so that a second heat dissipation channel is formed between the cover plate and the connecting element, and heat generated by the battery can be discharged from the second heat dissipation channel. In addition, the gas flow direction of the first heat dissipation channel is the same as that of the second heat dissipation channel, so that the gas circulation speed can be further increased, and the heat dissipation efficiency of the battery assembly is improved.
Specifically, the battery can produce the reaction heat at the during operation, and the heat passes through contact heat transfer for connecting element to carry out the heat exchange with the air in first heat dissipation channel, gaseous leading-out through first heat dissipation channel after the exchange, owing to set up the second heat dissipation channel simultaneously, further increased gaseous heat exchange's space, thereby improve battery pack radiating efficiency. Simultaneously, because first heat dissipation channel and the gaseous flow direction of second heat dissipation channel are the same, gaseous can be in first heat dissipation channel and second heat dissipation channel syntropy flow or circulation flow promptly, can guarantee the air flow direction like this, the air of control heat exchange end is derived accurately, avoids the air vortex to flow, effectively accelerates the circulation speed of hot-air to further improve battery pack radiating efficiency.
In any of the above technical solutions, further, the connecting element further includes: the supporting part and the arch part are arranged on the same side of the connecting element, and the supporting part is used for supporting the cover plate.
In this solution, the connecting element further comprises a support. The supporting part and the arch part are arranged on the same side of the connecting element, namely the supporting part and the arch part are both positioned on one side of the connecting element facing the cover plate. When the upper cover plate is covered above the connecting element, the cover plate is supported by the supporting part, a gap is formed between the connecting element and the cover plate, the height of the gap is adjusted through the height of the supporting part, the gap is the second heat dissipation channel, namely, the height of the second heat dissipation channel is the height of the supporting part, and the height of the supporting part can be adjusted, so that the air circulation speed is increased, and the heat dissipation effect of the battery pack is improved.
Specifically, set up the apron on connecting element to make and have certain clearance between apron and the connecting element, this clearance is the distance to the apron for battery positive and negative electrode post promptly, second heat dissipation channel's height is the height of supporting part promptly, make and form second heat dissipation channel between apron and the connecting element through setting up the clearance, second heat dissipation channel can form a closed loop of circulation of air with first heat dissipation channel, effectively accelerated the speed of circulation of air, battery pack's radiating efficiency has been improved greatly.
In any of the above technical solutions, further, the height of the support portion is 10mm to 15 mm.
In this technical scheme, set up the height of supporting part 10mm to 15mm to realize the maximize of battery pack radiating effect. Specifically, cover the apron and cover on the supporting part to make and have certain clearance between apron and the connecting element, this clearance is the distance of supporting part promptly, also be the distance of second heat dissipation channel, make and form second heat dissipation channel between apron and the connecting element through setting up the clearance, second heat dissipation channel and first heat dissipation channel can form the closed loop of a circulation of air, have effectively accelerated the speed of circulation of air, have improved battery pack's radiating efficiency greatly.
In any one of the above technical solutions, further, the battery pack includes a plurality of battery packs, and the battery assembly further includes: and the end plate is arranged between the two adjacent battery packs and is used for connecting the two adjacent battery packs.
In this technical solution, the battery pack includes a plurality of battery packs, and the plurality of battery packs are placed in parallel. The battery assembly also includes an end plate. Wherein, the end plate sets up between two adjacent group battery for connect two adjacent group battery, it is fixed to realize the connection between the group battery, further guarantees battery pack overall stability. Specifically, can set up the end plate and be aluminium system metal end plate, set up in the group battery both sides, the end plate can guarantee that a plurality of batteries put together and keep neat to guarantee the positive negative utmost point post highly uniform at all battery tops, and then guarantee the connecting element highly uniform who is connected with it, realize first heat dissipation channel and second heat dissipation channel's unobstructed, be favorable to the gas circulation, promote the whole radiating efficiency of battery pack. In addition, the aluminum metal end plate is simple in structure and easy to operate, and can be produced or purchased in batches, so that the production cost is effectively reduced.
In any of the above technical solutions, further, the battery pack further includes a supporting member, the supporting member is disposed along a circumferential direction of the battery pack and is located between the battery pack and the cover plate, wherein the supporting member includes a boss portion, and the supporting member and the cover plate are fixedly connected to the boss portion through a bolt.
In this solution, the battery assembly further includes a support member. Wherein, support piece sets up along group battery circumference to be located between group battery and the apron, support piece can effectively support the apron, in order to form the complete heat radiation structure of battery pack, has realized the stability of the whole heat radiation structure of battery pack, improves the reliability that battery pack used. Meanwhile, the battery is isolated from the outside, so that the battery can be effectively prevented from being in contact with the outside to cause short circuit, and the service life of the battery is further influenced. In addition, the supporting piece comprises a boss part, the supporting piece and the cover plate are fixedly connected on the boss part through bolts, the connection stability of the cover plate and the supporting piece is enhanced, and therefore the stability of the whole heat dissipation structure of the battery pack is achieved.
In any of the above technical solutions, further, the boss portions and the first heat dissipation channels are arranged in a staggered manner.
In the technical scheme, the boss parts and the first heat dissipation channels as well as the openings of the boss parts and the second heat dissipation channels are arranged in a staggered mode. Like this, when improving the whole heat radiation structure's of battery pack stability, avoided boss portion to first heat dissipation channel and the sheltering from of second heat dissipation channel, avoid blockking the circulation of air, influence battery pack's radiating effect, effectively add the circulation speed of rapid heating air to further improve battery pack radiating efficiency.
In any of the above technical solutions, further, the cover plate is a plastic cover plate; and/or the connecting element is a copper plate with nickel plating on the surface.
In this technical scheme, set up the apron and be the plastics apron, can effectively prevent that battery and external contact from arousing the short circuit, and then influence the life of battery. Set up connecting element and be the copper of surface nickel plating, because the copper heat conductivity is high, the reaction heat that produces can conduct fast for connecting element in battery work engineering to can carry out heat exchange with the air fast, promote the radiating efficiency. And can set up the thickness value of connecting element according to the in-service use needs, can set up connecting element's copper thickness specifically and be 1mm, make its radiating efficiency reach the maximize, further improve battery pack's radiating effect.
A second object of the present invention is to provide a vehicle, including: in the battery pack according to any one of the above aspects, the battery pack is applied to a vehicle.
The utility model provides a vehicle, because of the battery pack including any one of the above-mentioned technical scheme, consequently have this battery pack's whole beneficial effect, no longer describe herein.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a partial structure of a battery pack according to an embodiment of the present invention;
fig. 2 is a schematic view of the overall structure of a battery pack according to an embodiment of the present invention;
fig. 3 is a schematic structural view of the connecting element of the embodiment shown in fig. 1.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 and 3 is:
1 a battery pack;
10 batteries, 20 connecting elements, 30 cover plates, 40 arch parts, 50 end plates and 60 supporting parts.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example one
As shown in fig. 1 to 3, one embodiment of the present invention provides a battery assembly 1 including at least one battery pack and a connection member 20.
The battery pack comprises at least two batteries 10, the batteries 10 comprise two electrode columns, one of the two electrode columns can be a positive electrode column, the other one of the two electrode columns can be a negative electrode column, at least two batteries 10 are placed in parallel to form the battery pack capable of being charged and discharged, then the electrode columns of two adjacent batteries 10 are respectively connected with the first end and the second end of the connecting element 20, series connection or parallel connection of the two adjacent batteries 10 is realized, because the batteries 10 are arranged in multiple rows and multiple columns, the connecting element 20 is connected with the electrode columns of the adjacent batteries 10 in the same row, or the connecting element 20 is connected with the electrode columns of the adjacent batteries 10 in the same column, namely, the arch part 40 is positioned above a gap between the two adjacent batteries 10. Through the top that sets up the gap between two adjacent batteries 10 with arch portion 40, realized that the gap between arch portion 40 and the adjacent battery 10 forms first heat dissipation channel, and then can come out the heat that produces in the battery 10 course of operation fast, and carry out heat exchange with the air between battery 10 and arch portion 40, the circulation of rethread first heat dissipation channel is gone out, avoid the air vortex to flow, lead to the circulation of air not smooth, reduce battery assembly 1's radiating efficiency.
Specifically, two adjacent batteries 10 are connected through the connecting element 20, and form a first heat dissipation channel with the gap between the adjacent batteries 10, in the working process of the battery assembly 1, the reaction heat generated by the batteries 10 is transmitted to the connecting element 20 through contact heat conduction, and compared with the heat exchange of the traditional batteries 10 with the air directly after heat generation, the heat transmission efficiency of the batteries 10 is increased, meanwhile, the heat of the batteries 10 is discharged along the first heat dissipation channel after the heat exchange with the air in the first heat dissipation channel, and the heat discharge speed generated by the work of the batteries 10 is effectively increased. The problem of among the prior art battery 10 gap can't ensure the air flow direction, and then lead to the unable closed loop that forms of air motion direction to and the air flow problem that appears with the vortex mode is solved, the utility model provides a battery pack 1 simple structure is reliable, and it is convenient to dismantle, can accelerate the circulation speed of the thermal transmission speed of battery 10 and air, improves battery pack 1's radiating effect.
Example two:
as shown in fig. 1 to 3, one embodiment of the present invention provides a battery assembly 1 including at least one battery pack, a connection member 20, and a cap plate 30. Wherein the electrode posts are located on the top of the cells 10 and the raised portions 40 are located above the gap between two adjacent cells 10.
Specifically, the electrode posts are arranged at the tops of the batteries 10 and connected with the electrode posts through the connecting element 20, because the connecting element 20 is provided with the arched portion 40, the arched portion 40 is located above a gap between two adjacent batteries 10, so that a first heat dissipation channel is formed between the arched portion 40 and the adjacent battery 10, in this way, heat generated by the operation of the battery 10 is transferred to the connecting element 20 through contact heat, due to low density of hot gas, the heat is upwards diffused and exchanges heat with air between the battery 10 and the arched portion 40, and then flows out through the first heat dissipation channel, thereby effectively avoiding air vortex flow, causing unsmooth air circulation, reducing the heat dissipation efficiency of the battery assembly 1, and by arranging the electrode posts at the tops of the batteries 10, a better heat dissipation effect can be achieved, and the heat dissipation effect of the battery assembly 1 is improved.
Further, as shown in fig. 1 and 3, in a direction perpendicular to the gap between two adjacent batteries 10, the width from the arch start end to the arch end of the arch portion 40 is 10mm or more, and the height of the arch portion 40 is 5mm or more.
Specifically, the arch size of the arch portion 40 specifically includes an arch width and a height, and the arch width is a width from the beginning end to the end of the arch in a direction perpendicular to the gap between two adjacent batteries 10. The width from the arch starting end to the arch ending end of the arch part 40, namely the arch span of the arch part 40, and the height of the arch part are set within a certain range, so that the heat dissipation efficiency of the first heat dissipation channel can be effectively improved. Specifically, the span of the arch portion 40 may be 10mm or more, and the height of the arch portion 40 may be 5mm or more. Based on the connection element 20, the heat dissipation efficiency and the comprehensive consideration of space, on one hand, the heat dissipation area of the arch part 40 can be effectively maximized, so that the heat exchange speed is maximized, and the heat dissipation efficiency of the battery assembly 1 is improved. On the other hand, can guarantee the maximize in first heat dissipation channel space, and then realize the accurate control to air flow direction for circulation of air speed, the radiating efficiency of power supply module is promoted, simultaneously because 40 simple structure of hunch portion, height and width are easily adjusted, easy to operate, the effectual manufacturing cost that has reduced.
Further, as shown in fig. 1 and 2, the battery assembly 1 further includes a cap plate 30. Wherein the cap plate 30 is disposed above the connection member 20 with a certain gap, so that a second heat dissipation channel is formed between the cap plate 30 and the connection member 20, which facilitates heat generated from the battery 10 to be discharged from the second heat dissipation channel. In addition, the gas flow direction of the first heat dissipation channel is the same as that of the second heat dissipation channel, so that the gas circulation speed can be further increased, and the heat dissipation efficiency of the battery pack 1 is improved.
Specifically, the battery 10 generates reaction heat during operation, the heat is transferred to the connecting element 20 through contact heat, and exchanges heat with air in the first heat dissipation channel, and the exchanged gas is guided out through the first heat dissipation channel, and meanwhile, due to the arrangement of the second heat dissipation channel, the space for gas heat exchange is further increased, so that the heat dissipation efficiency of the battery assembly 1 is improved. Simultaneously, because first heat dissipation channel and the gaseous flow direction of second heat dissipation channel are the same, gaseous can be in first heat dissipation channel and the cocurrent flow of second heat dissipation channel or circulation flow promptly, can guarantee the air flow direction like this, the air of control heat exchange end is carried out the accuracy and is derived, avoids the air vortex to flow, effectively accelerates hot-air's circulation speed to further improve battery pack 1 radiating efficiency.
Further, as shown in fig. 1, the connection member 20 further includes a support portion 60. The support portion 60 and the raised portion 40 are disposed on the same side of the connecting element 20, i.e., the support portion 60 and the raised portion 40 are both located on the side of the connecting element 20 facing the cover plate 30. When the upper cover plate 30 is covered above the connecting element 20, the supporting portion 60 supports the cover plate 30, a gap is formed between the connecting element 20 and the cover plate 30, the height of the gap is adjusted by the height of the supporting portion 60, the gap is the second heat dissipation channel, that is, the height of the second heat dissipation channel is the height of the supporting portion 60, and the height of the supporting portion 60 can be adjusted, so that the air circulation speed is increased, and the heat dissipation effect of the battery assembly 1 is improved.
Specifically, the cover plate 30 is arranged on the connecting element 20, a certain gap is formed between the cover plate 30 and the connecting element 20, the gap is the distance from the positive and negative electrode posts of the battery 10 to the cover plate 30, namely, the height of the second heat dissipation channel is the height of the supporting part 60, the second heat dissipation channel is formed between the cover plate 30 and the connecting element 20 by arranging the gap, the second heat dissipation channel and the first heat dissipation channel can form a closed loop of air circulation, the speed of air circulation is effectively accelerated, and the heat dissipation efficiency of the battery assembly 1 is greatly improved.
Further, as shown in fig. 1, the height of the support portion 60 is 10mm to 15 mm. The height of the support part 60 is set to 10mm to 15mm to maximize the heat dissipation effect of the battery assembly 1. Specifically, cover plate 30 covers on supporting portion 60 to certain clearance has between messenger's cover plate 30 and the connecting element 20, this clearance is the distance of supporting portion 60 promptly, also be the distance of second heat dissipation channel promptly, make and form second heat dissipation channel between cover plate 30 and the connecting element 20 through setting up the clearance, second heat dissipation channel and first heat dissipation channel can form a closed loop of circulation of air, effectively accelerated the speed of circulation of air, battery pack 1's radiating efficiency has been improved greatly.
Example three:
as shown in fig. 1 and 2, one embodiment of the present invention provides a battery assembly 1 including at least two batteries 10, a connection member 20, a cap plate 30, an end plate 50, and a support member. The battery pack includes a plurality of battery packs, and the end plate 50 is disposed between two adjacent battery packs to connect the two adjacent battery packs.
Specifically, the battery assembly 1 includes a plurality of battery packs, which are placed in parallel. Battery assembly 1 also includes end plates 50. Wherein, the end plate 50 is disposed between two adjacent battery packs for connecting two adjacent battery packs, so as to realize the connection fixation between the battery packs, and further ensure the overall stability of the battery assembly 1. Specifically, the end plates 50 can be made of aluminum and are arranged on two sides of the battery pack, the end plates 50 can ensure that the plurality of batteries 10 are placed together to be kept orderly, the heights of positive and negative poles at the tops of all the batteries 10 are consistent, and then the heights of the connecting elements 20 connected with the batteries are consistent, so that smoothness of the first heat dissipation channel and the second heat dissipation channel is realized, gas circulation is facilitated, and the overall heat dissipation efficiency of the battery assembly 1 is improved. In addition, the aluminum metal end plate 50 has a simple structure, is easy to operate, can be produced or purchased in batches, and effectively reduces the production cost.
Further, as shown in fig. 1 and 2, the battery assembly 1 further includes a support member. Wherein the support member is disposed along the circumferential direction of the battery pack and between the battery pack and the cap plate 30.
Specifically, the support member can effectively support the cover plate 30 to form a complete heat dissipation structure of the battery assembly 1, so that the stability of the overall heat dissipation structure of the battery assembly 1 is realized, and the use reliability of the battery assembly 1 is improved. Meanwhile, the battery 10 is isolated from the outside, so that short circuit caused by contact between the battery 10 and the outside can be effectively prevented, and the service life of the battery 10 is further influenced. In addition, the support member includes a boss portion, and the support member and the cover plate 30 are connected and fixed on the boss portion through a bolt, so that the connection stability of the cover plate 30 and the support member is enhanced, and the stability of the overall heat dissipation structure of the battery assembly 1 is realized.
Further, as shown in fig. 1 and 2, the boss portions are disposed to intersect the first heat dissipation channels.
Specifically, the openings of the boss portions and the first heat dissipation channels and the openings of the boss portions and the second heat dissipation channels are staggered. Like this, when improving battery pack 1 overall heat radiation structure's stability, avoided boss portion to the sheltering from of first heat dissipation channel and second heat dissipation channel, avoid blockking the circulation of air, influence battery pack 1's radiating effect, effectively add the circulation speed of fast hot-air to further improve battery pack 1 radiating efficiency.
Further, as shown in fig. 1 and 2, the cover plate 30 is a plastic cover plate 30; and/or the connecting member 20 is a copper plate plated with nickel on the surface.
Specifically, the cover plate 30 is a plastic cover plate 30, which can effectively prevent the battery 10 from short circuit caused by external contact, and further affect the service life of the battery 10. Set up connecting element 20 and be the copper of surface nickel plating, because the copper heat conductivity is high, the reaction heat that produces can conduct for connecting element 20 fast in battery 10 work engineering to can carry out heat exchange fast with the air, promote the radiating efficiency. The thickness value of the connecting element 20 can be set according to actual use requirements, and the thickness of the copper plate of the connecting element 20 can be set to be 1mm, so that the heat dissipation efficiency of the connecting element is maximized, and the heat dissipation effect of the battery assembly 1 is further improved.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
As shown in fig. 1 to 3, an embodiment of the present invention provides a battery assembly 1 including at least one battery pack, a connection member 20, a cover plate 30, an end plate 50, and a support member. The battery pack comprises at least two batteries 10, wherein the at least two batteries 10 are arranged in parallel, two adjacent batteries 10 in the at least two batteries 10 are connected through a connecting element 20, and a first heat dissipation channel is formed between the connecting element 20 and the batteries 10; the cap plate 30 is disposed over the connection member 20, and a second heat dissipation channel is formed between the cap plate 30 and the connection member 20.
Specifically, as shown in fig. 1 to 3, the battery assembly 1 includes: a battery 10; and a connection member 20 for connecting the battery 10 with a high heat conduction rate, the connection member 20 being disposed on the top of the battery 10; and a cap plate 30 disposed on the upper portion of the connection member 20, functioning to prevent a short circuit with external contacts; wherein, the cover plate 30 and the supports at both ends of the battery 10 are connected by bolts for fixing the cover plate 30.
Specifically, as shown in fig. 1 and 2, the connecting element 20 is connected to the positive and negative electrode posts of the battery 10 by laser welding, and the gap between the cover plate 30 and the connecting element 20 is 10-15 mm. Meanwhile, the battery 10, the connection member 20, and the cap plate 30 cooperate to constitute a heat dissipation structure of the battery assembly 1.
Specifically, as shown in fig. 1 and 2, the middle portion of the connection member 20 has an arch 40, and the arch 40 has a span (width) of not less than 10mm and a height of not less than 5mm, and the battery 10 and the connection member 20 constitute a first heat dissipation channel of the battery assembly 1, which is capable of heat exchange between heat generated from the battery 10 and air in contact and conducting the heat along the first heat dissipation channel.
Specifically, as shown in fig. 1 and fig. 2, a gap of 10-15 mm is formed between all the connecting elements 20 and the cover plate 30 in the battery assembly 1, and a second heat dissipation channel of the battery assembly 1 is formed again, the reaction heat of the battery 10 is transferred to the connecting elements 20 through contact heat conduction, and the air of the second heat dissipation channel formed by the connecting elements 20 and the cover plate 30 exchanges heat and is led out along the second heat dissipation channel.
The battery 10, the connecting element 20 and the cover plate 30 form a heat dissipation structure having two long and narrow first heat dissipation channels and second heat dissipation channels, and the long and narrow first heat dissipation channels and second heat dissipation channels reduce the occurrence probability of turbulence phenomenon in the air flowing process and improve the heat exchange efficiency; in the prior art, the heat dissipation structure formed by the connection member 20 and the cap plate 30 does not transfer heat to the connection member 20 by contact heat conduction, and directly exchanges heat with air, so that the heat dissipation effect is not significant. Compared with the prior art, the utility model discloses in, battery 10, the battery pack 1 heat radiation structure that connecting element 20 and apron 30 are constituteed, because battery 10's reaction heat passes through on contact heat-conduction transmits connecting element 20 with the heat, again with the air carry out heat exchange, this process of contact heat transfer has been increased, battery pack 1's rate of heat dissipation obviously improves, and set up through the combination with first heat dissipation channel and second heat dissipation channel, can form the closed loop of circulation of air, reduce the vortex flow probability of air, and then derive battery 10 production heat through two heat dissipation channel circulations, the radiating efficiency of battery pack 1 has been improved.
The specific implementation steps comprise:
all the batteries 10 forming the battery assembly 1 are placed on a horizontal plane in order, the two transverse ends of each battery 10 are fixed through metal end plates 50, and the heights of positive and negative electrode columns at the tops of all the batteries 10 are required to be consistent;
fixing the connecting element 20 on the positive and negative electrode posts of the battery 10 by laser welding, and ensuring that the middle part of the connecting element 20 is provided with an arch part 40, the span of the arch part 40 is not less than 10mm, and the height of the arch part 40 is not less than 5 mm;
the boss portions of the support members at both ends of the battery 10 are connected to the cap plate 30 by bolts, constituting a heat dissipation structure of the battery assembly 1.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically defined, the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the drawings, which are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the present disclosure, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A battery assembly, comprising at least one battery pack, the battery pack comprising:
at least two batteries comprising two electrode posts;
a connecting member having a first end connected to one electrode post of one of the adjacent two of the cells and a second end opposite to the first end connected to one electrode post of the other of the adjacent two of the cells;
wherein the connecting element further comprises an arch part, and a first heat dissipation channel is formed between the arch part and the battery.
2. The battery assembly of claim 1,
the electrode column is positioned at the top of the battery, and the arched part is positioned above a gap between the two adjacent batteries.
3. The battery assembly of claim 1,
the height of the arch part is more than or equal to 5 mm;
in the direction perpendicular to the gap between the two adjacent batteries, the width from the arch starting end to the arch ending end of the arch part is more than or equal to 10 mm.
4. The battery assembly according to any one of claims 1 to 3, further comprising:
the cover plate is arranged above the connecting element, a second heat dissipation channel is formed between the cover plate and the connecting element, and the gas flow directions of the first heat dissipation channel and the second heat dissipation channel are the same.
5. The battery assembly of claim 4, wherein the connecting element further comprises:
the supporting part and the arch part are arranged on the same side of the connecting element, and the supporting part is used for supporting the cover plate.
6. The battery pack according to claim 5, wherein the height of the support part is 10 to 15 mm.
7. The battery assembly of claim 4, wherein the battery pack comprises a plurality of battery packs, the battery assembly further comprising:
and the end plate is arranged between the two adjacent battery packs and is used for connecting the two adjacent battery packs.
8. The battery assembly of claim 4, further comprising: the support piece is arranged along the circumferential direction of the battery pack and is positioned between the battery pack and the cover plate, wherein the support piece comprises a boss part, and the support piece and the cover plate are fixedly connected on the boss part through bolts.
9. The battery assembly of claim 8,
the boss portions and the first heat dissipation channels are arranged in a staggered mode.
10. A vehicle, characterized by comprising:
the battery assembly according to any one of claims 1 to 9, which is applied in the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120684758.7U CN213184419U (en) | 2021-04-06 | 2021-04-06 | Battery pack and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120684758.7U CN213184419U (en) | 2021-04-06 | 2021-04-06 | Battery pack and vehicle |
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| CN213184419U true CN213184419U (en) | 2021-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114497867A (en) * | 2021-12-30 | 2022-05-13 | 贵州梅岭电源有限公司 | Integrated thermal battery pack and preparation method thereof |
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2021
- 2021-04-06 CN CN202120684758.7U patent/CN213184419U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114497867A (en) * | 2021-12-30 | 2022-05-13 | 贵州梅岭电源有限公司 | Integrated thermal battery pack and preparation method thereof |
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