CN219959153U - Air-cooled battery pack and energy storage system comprising same - Google Patents

Air-cooled battery pack and energy storage system comprising same Download PDF

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Publication number
CN219959153U
CN219959153U CN202321691842.7U CN202321691842U CN219959153U CN 219959153 U CN219959153 U CN 219959153U CN 202321691842 U CN202321691842 U CN 202321691842U CN 219959153 U CN219959153 U CN 219959153U
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air
duct
battery pack
battery
cooled
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CN202321691842.7U
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丁洪涛
冯朝均
姚彩芳
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Wuhan Eve Energy Storage Co ltd
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Wuhan Eve Energy Storage Co ltd
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Abstract

The utility model discloses an air-cooled battery pack and an energy storage system comprising the same. The air-cooled battery pack comprises a battery module, a turbulence structure and a battery box body; the battery box body is formed by enclosing a plurality of box boards, and a heat dissipation air duct is formed in at least one box board; the battery module is arranged in the battery box body; the turbulent flow structure is arranged in the radiating air duct, and the turbulent flow structure and the radiating air duct jointly form the harmonica pipe air duct. Therefore, the harmonica pipe air duct is high in structural strength and free of leakage risk, the battery module in the air-cooled battery pack is cooled through the harmonica pipe air duct, the safety is good, the practicability is high, cooling air flows can be evenly scattered in the harmonica pipe air duct, the cooling air flows in the harmonica pipe air duct to evenly bring heat of the battery module everywhere, the heat dissipation effect is good, and the consistency of the internal temperature of the air-cooled battery pack is guaranteed and improved.

Description

Air-cooled battery pack and energy storage system comprising same
Technical Field
The utility model relates to the technical field of batteries, in particular to an air-cooled battery pack and an energy storage system comprising the air-cooled battery pack.
Background
The battery pack inevitably has the problem of generating heat in daily work, if the heat dissipation and cooling work can not be completed in time, heat can be accumulated in the battery module to cause various problems such as electric performance reduction, capacity attenuation, battery life shortening and the like of the battery cell. How to effectively radiate heat of a battery module under the premise of ensuring safety is always a subject of continuous research.
The traditional battery module heat dissipation adopts and increases the liquid cooling board in battery module bottom, and the mode of leading to the coolant liquid in the liquid cooling board cools off the battery module, uses the liquid cooling mode although can accomplish the heat dissipation cooling work of battery package, but liquid cooling system's structure is complicated, manufacturing cost and use cost are all relatively high, more importantly, once take place to reveal at the internal circulation coolant liquid of battery package and will very probably cause serious incident.
In order to solve the above problems, a heat dissipation duct may be provided in the battery pack, however, the heat dissipation duct of the conventional battery pack has a problem that it is difficult to uniformly take away heat from the battery module, and the uniformity of the internal temperature of the battery pack is poor.
Disclosure of Invention
In order to overcome at least one defect of the prior art, the utility model provides an air-cooled battery pack and an energy storage system comprising the air-cooled battery pack, and aims to solve the problem that a heat dissipation air duct of the conventional battery pack is difficult to uniformly carry heat away from all parts of a battery module.
The utility model adopts the technical proposal for solving the problems that:
an air-cooled battery pack comprising: the battery box body is formed by enclosing a plurality of box boards, and a heat dissipation air duct is formed in at least one box board; the battery module is arranged in the battery box body; the turbulent flow structure is arranged in the radiating air duct, and the turbulent flow structure and the radiating air duct jointly form the harmonica-shaped pipe air duct.
According to some embodiments of the utility model, the air inlets and the air outlets of the harmonica duct are arranged at two opposite ends of the box plate in a one-to-one correspondence.
According to some embodiments of the utility model, the turbulence structures are heat dissipating fins.
According to some embodiments of the utility model, the turbulence structures extend along an extending direction of the heat dissipation air duct.
According to some embodiments of the utility model, the case plate comprises a lower case plate, the bottom of the battery module is connected to the lower case plate, and the mouth organ pipe air duct is arranged inside the lower case plate.
According to some embodiments of the utility model, a heat conductive glue is coated between the bottom of the battery module and the lower case plate.
According to some embodiments of the utility model, the heat conductive paste is uniformly coated on one side of the lower case plate for connecting the battery module.
In addition, the utility model also provides an energy storage system, which comprises the air-cooled battery pack and a battery support, wherein the battery support is provided with a collecting cavity, the air-cooled battery pack is arranged in the collecting cavity, at least one side plate of the collecting cavity is internally provided with an air supply channel, and the air supply channel is used for conveying air flow to the harmonica duct.
According to some embodiments of the utility model, the battery support comprises a ventilation side plate, a transverse support and a vertical support, the air supply duct is arranged in the ventilation side plate, the transverse support is transversely connected with the ventilation side plate, the vertical support is vertically connected between the transverse support, and the collection cavity is formed by the ventilation side plate, the transverse support and the vertical support.
According to some embodiments of the utility model, the air outlet is disposed opposite to the air inlet of the mouth organ pipe air duct.
In summary, the air-cooled battery pack and the energy storage system comprising the same provided by the utility model have the following technical effects:
1) The harmonica pipe air duct is high in structural strength and free of leakage risk, and the battery module in the air-cooled battery pack is cooled through the harmonica pipe air duct, so that the safety is good, and the practicability is high;
2) The harmonica pipe air duct has smaller occupied space, so that the whole structure of the air-cooled battery pack is more compact and exquisite, and the harmonica pipe air duct can be suitable for battery packs with various sizes;
3) The air-cooled battery pack has the advantages that through holes for ventilation are not required to be arranged on the side wall of the box plate, and the sealing performance of the air-cooled battery pack can be improved;
4) The cooling air flow can be uniformly dispersed in the mouth organ pipe air duct, and can uniformly flow in the mouth organ pipe air duct to uniformly drive the heat of each part of the battery module, so that the heat dissipation effect is good, and the consistency of the internal temperature of the air-cooled battery pack is ensured and improved;
5) The air supply duct is integrated on the battery support, namely, the air supply duct is used as a part of the battery support, so that the whole air duct is simplified, the installation is convenient, and the production cost is reduced.
Drawings
Fig. 1 is a schematic structural view of a battery case according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic view of the structure of a lower case plate according to an embodiment of the present utility model;
FIG. 4 is an enlarged view of part B of FIG. 3;
FIG. 5 is a schematic diagram of an air-cooled energy storage system according to an embodiment of the present utility model;
fig. 6 is a partial enlarged view of a portion C in fig. 5.
Wherein the reference numerals have the following meanings:
1-battery box, 11-box board, 111-lower box board, 3-harmonica pipe air duct, 31-heat dissipation air duct, 32-turbulence structure, 4-heat-conducting glue, 5-battery bracket, 51-air supply air duct, 511-air inlet, 512-air outlet, 52-ventilation side plate, 53-transverse support piece and 54-vertical support piece.
Detailed Description
For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.
In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
The utility model is described in further detail below with reference to the accompanying drawings.
Referring to fig. 1 and 2, the present utility model discloses an air-cooled battery pack, which includes a battery module, a turbulence structure 32 and a plurality of case plates 11; the plurality of box plates 11 are enclosed to form a battery box body 1, and a heat dissipation air duct 31 is formed in at least one box plate 11; the battery module is arranged in the battery box body 1; the turbulent flow structure 32 is arranged in the radiating air duct 31, and the turbulent flow structure 32 and the radiating air duct 31 jointly form the harmonica pipe air duct 3. More specifically, the turbulence structures 32 are provided in plurality, and the plurality of turbulence structures 32 are arranged in the heat dissipation air duct 31 at intervals.
According to the air-cooled battery pack provided by the embodiment, on one hand, the harmonica pipe air duct 3 is high in structural strength and free of leakage risk, and battery modules in the air-cooled battery pack are cooled through the harmonica pipe air duct 3, so that the safety is good, and the practicability is high; on the other hand, the harmonica duct air duct 3 occupies a smaller space, so that the whole structure of the air-cooled battery pack is more compact and exquisite, and the harmonica duct air duct 3 can be suitable for battery packs with various sizes; on the other hand, there is no need to provide a through hole for ventilation in the side wall of the case plate 11, and the sealing performance of the air-cooled battery pack can be improved; more importantly, the cooling air flow can be uniformly dispersed in the harmonica duct air duct 3, and can uniformly flow in the harmonica duct air duct 3 to uniformly bring the heat of the battery module everywhere, so that the heat dissipation effect is good, and the consistency of the internal temperature of the air-cooled battery pack is ensured and improved.
As shown in fig. 3, in the present embodiment, preferably, the air inlets and the air outlets of the mouth-tube air-duct 3 are disposed at opposite ends of the case plate 11 in a one-to-one correspondence manner, so that the mouth-tube air-duct 3 can extend from one end of the case plate 11 to the other end of the case plate 11, the mouth-tube air-duct 3 can have a longer size and a larger area, and the heat dissipation effect of the mouth-tube air-duct 3 on the battery module can be improved. More preferably, in the present embodiment, the area of the harmonica duct 3 is not less than 85% of the area of the case plate 11, so that the heat dissipation effect on the battery module can be improved as much as possible.
Further, in this embodiment, the turbulence structure 32 is a heat dissipation fin, which has a good heat conducting property, and can absorb the heat generated by the battery module more quickly and efficiently, and the cooling air flowing through the mouth organ pipe air duct 3 can discharge the heat absorbed by the heat dissipation fin more quickly, so that the heat dissipation efficiency and heat dissipation effect of the mouth organ pipe air duct 3 on the battery module can be greatly improved. Preferably, in the present embodiment, in order to increase the occupied volume of the turbulence structure 32 in the heat dissipation air duct 31, so as to further increase the heat dissipation efficiency and the heat dissipation effect of the harmonica duct 3 on the battery module, the turbulence structure 32 extends along the extending direction of the heat dissipation air duct 31.
As shown in fig. 1, 2, 3 and 4, specifically, in the present embodiment, the case plate 11 includes a lower case plate 111, the bottom of the battery module is connected to the lower case plate 111, it is understood that the lower case plate 111 and the battery module are in direct contact relation, and most of the heat generated from the battery module can be transferred to the lower case plate 111, therefore, it is preferable that the mouth organ duct 3 is provided inside the lower case plate 111. More specifically, in the present embodiment, in addition to the lower case plate 111, the other case plates 11 are specifically an upper case plate and a side case plate, the upper case plate and the lower case plate 111 being opposed, the side case plate being connected between the upper case plate and the lower case plate 111; it should be noted that, in some other embodiments, the upper case plate and/or the side plate may be provided with a harmonica tube structure, which is selected according to practical needs, and is not limited only herein.
As shown in fig. 3, in this embodiment, preferably, the bottom of the battery module and the lower case plate 111 are coated with the heat-conducting glue 4, so that, on one hand, the heat-conducting glue 4 can improve the heat conductivity coefficient between the battery module and the lower case plate 111, so that the heat generated by the battery module can be more quickly and fully transferred to the lower case plate 111, and on the other hand, the fixing of the heat-conducting glue 4 can improve the connection strength between the battery module and the lower case plate 111, so that the problem that the battery module is loosened or misplaced in the lower case plate 111 can be avoided. More preferably, in the present embodiment, the heat conductive adhesive 4 is uniformly coated on one side of the lower case plate 111 for connecting the battery modules, to further improve the heat conductivity between the battery modules and the lower case plate 111, and to further improve the connection strength between the battery modules and the lower case plate 111.
As shown in fig. 5, in addition, the present utility model further provides an energy storage system, including the air-cooled battery pack as described above, and further including the battery support 5, where the battery support 5 is provided with a collection cavity, the air-cooled battery pack is disposed in the collection cavity, and at least one side plate of the collection cavity is provided with an air supply duct 51, and the air supply duct 51 is used for delivering air flow to the harmonica duct 3.
As shown in fig. 5, specifically, in this embodiment, the battery support 5 includes a ventilation side plate 52, a transverse support 53 and a vertical support 54, the air supply duct 51 is disposed in the ventilation side plate 52, the transverse support 53 is transversely connected to the ventilation side plate 52, the vertical support 54 is vertically connected between the transverse support 53, the collection cavity is formed by the ventilation side plate 52, the transverse support 53 and the vertical support 54, the air supply duct 51 is provided with a plurality of air outlets 512, the air outlets 512 are in one-to-one correspondence with the air inlets of the harmonica duct 3, so that the air supply duct 51 can simultaneously provide ventilation and heat dissipation for a plurality of air-cooled battery packs accommodated in the collection cavity, the overall structure of the energy storage system is simpler and more compact, and the space utilization of the energy storage system is improved. More specifically, in the present embodiment, the air supply duct 51 is further provided with an air inlet 511, and the air inlet 511 is used for communicating with an air duct of an external air source. Preferably, in the present embodiment, the aperture of the air inlet 511 is gradually increased along the direction away from the opening thereof, so that the air can flow into the air outlet 512 more uniformly through the air inlet 511, so as to uniformly dissipate the heat of the air-cooled battery packs as much as possible, and maintain the temperature of each air-cooled battery pack as uniform as possible.
As shown in fig. 6, in the present embodiment, the air outlet 512 is preferably opposite to the air inlet of the mouth organ pipe air duct 3, so that the air can directly flow into the air inlet of the mouth organ pipe air duct 3 after flowing out from the air outlet 512, and then is discharged from the air outlet of the mouth organ pipe air duct 3, thereby taking away the heat generated in the battery pack during operation, and the cooling effect is good and the cooling efficiency is high.
In summary, the air-cooled battery pack and the energy storage system comprising the air-cooled battery pack disclosed by the utility model have the following beneficial technical effects:
1) The harmonica pipe air duct 3 has higher structural strength and no leakage risk, and the battery module in the air-cooled battery pack is cooled through the harmonica pipe air duct 3, so that the safety is good, and the practicability is strong;
2) The cooling air flow can be uniformly dispersed in the harmonica pipe air duct 3, and can uniformly flow in the harmonica pipe air duct 3 to uniformly drive the heat of each part of the battery module, so that the heat dissipation effect is good, and the consistency of the internal temperature of the air-cooled battery pack is ensured and improved;
3) The heat dissipation fins can absorb the heat generated by the battery module more quickly and efficiently, the cooling air flow flowing through the harmonica pipe air duct 3 can discharge the heat absorbed by the heat dissipation fins more quickly, and the heat dissipation efficiency and the heat dissipation effect of the harmonica pipe air duct 3 on the battery module can be improved greatly;
4) The heat conductive adhesive 4 can improve the heat conductivity between the battery module and the lower case plate 111, so that heat generated by the battery module can be more rapidly and sufficiently transferred to the lower case plate 111;
5) The air supply duct 51 is integrated on the battery bracket 5, and the air supply duct 51 is used as a part of the battery bracket 5, so that the whole air duct is simplified, the installation is convenient, and the production cost is reduced;
6) The air-cooled battery pack is not required to be provided with a fan, the whole structure of the air-cooled battery pack is simpler, the energy density and the sealing performance of the air-cooled battery pack are improved, and the production cost of the air-cooled battery pack is reduced.
The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (10)

1. An air-cooled battery pack, comprising:
the battery box body (1) is formed by enclosing a plurality of box plates (11), and a heat dissipation air duct (31) is formed in at least one box plate (11);
the battery module is arranged in the battery box body (1);
the turbulent flow structure (32) is arranged in the radiating air duct (31), and the turbulent flow structure (32) and the radiating air duct (31) jointly form the harmonica pipe air duct (3).
2. An air-cooled battery pack according to claim 1, wherein the air inlet and the air outlet of the harmonica duct (3) are provided at opposite ends of the box plate (11) in one-to-one correspondence.
3. The air-cooled battery pack according to claim 1, wherein the turbulence structure (32) is a heat radiating fin.
4. The air-cooled battery pack according to claim 1, wherein the turbulence structure (32) extends along an extending direction of the heat dissipation air duct (31).
5. An air-cooled battery pack according to any one of claims 1-4, wherein the case plate (11) comprises a lower case plate (111), the bottom of the battery module is connected to the lower case plate (111), and the mouth organ pipe duct (3) is provided inside the lower case plate (111).
6. The air-cooled battery pack according to claim 5, wherein a heat conductive adhesive (4) is coated between the bottom of the battery module and the lower case plate (111).
7. The air-cooled battery pack according to claim 6, wherein the heat conductive paste (4) is uniformly coated on one side of the lower case plate (111) for connecting the battery modules.
8. Energy storage system, characterized in that it comprises an air-cooled battery pack according to any one of claims 1-7, and further comprises a battery support (5), wherein the battery support (5) is provided with a collecting cavity, the air-cooled battery pack is arranged in the collecting cavity, at least one side plate of the collecting cavity is provided with an air supply duct (51), and the air supply duct (51) is used for conveying air flow to the harmonica duct (3).
9. The energy storage system according to claim 8, wherein the battery support (5) comprises a ventilation side plate (52), a transverse support (53) and a vertical support (54), the air supply duct (51) is arranged in the ventilation side plate (52), the transverse support (53) is transversely connected to the ventilation side plate (52), the vertical support (54) is vertically connected between the transverse supports (53), and the collection cavity is formed by the ventilation side plate (52), the transverse support (53) and the vertical support (54).
10. Energy storage system according to claim 8, characterized in that the air outlet of the air supply duct (51) is opposite to the air inlet of the harmonica duct (3).
CN202321691842.7U 2023-06-29 2023-06-29 Air-cooled battery pack and energy storage system comprising same Active CN219959153U (en)

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Application Number Priority Date Filing Date Title
CN202321691842.7U CN219959153U (en) 2023-06-29 2023-06-29 Air-cooled battery pack and energy storage system comprising same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321691842.7U CN219959153U (en) 2023-06-29 2023-06-29 Air-cooled battery pack and energy storage system comprising same

Publications (1)

Publication Number Publication Date
CN219959153U true CN219959153U (en) 2023-11-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321691842.7U Active CN219959153U (en) 2023-06-29 2023-06-29 Air-cooled battery pack and energy storage system comprising same

Country Status (1)

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CN (1) CN219959153U (en)

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