CN220796873U - Air-cooled battery pack - Google Patents

Air-cooled battery pack Download PDF

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Publication number
CN220796873U
CN220796873U CN202322494238.1U CN202322494238U CN220796873U CN 220796873 U CN220796873 U CN 220796873U CN 202322494238 U CN202322494238 U CN 202322494238U CN 220796873 U CN220796873 U CN 220796873U
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China
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air
battery pack
plate
air cooling
cooling plate
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CN202322494238.1U
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Chinese (zh)
Inventor
刘杰
欧玲
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Hangzhou Chezhizhi Technology Co ltd
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Hangzhou Chezhizhi Technology Co ltd
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Abstract

The utility model relates to the technical field of battery packs, in particular to an air-cooled battery pack which comprises a plurality of battery cells, an FPC board, an air-cooled plate and a plurality of support columns; the battery cores are integrated at the upper end of the air cooling plate through the FPC board; the air cooling plate is a hollow plate structure; the support columns are arranged in the air cooling plate and used for stabilizing the hollow structure of the air cooling plate; the two open ends of the air cooling plate are respectively an air inlet and an air outlet; the battery pack also comprises a current limiting component which is fixedly arranged at the air inlet and/or the air outlet, and the heat dissipation energy consumption of the battery pack can be reduced by ensuring the smooth heat dissipation of the battery pack.

Description

Air-cooled battery pack
Technical Field
The utility model relates to the technical field of battery packs, in particular to an air-cooled battery pack.
Background
The battery pack as a power component of an electric automobile generally comprises a plurality of electric cells, an FPC board and a support member, wherein the electric cells are integrated on the support member to form a whole. In the process of charging and discharging the battery pack, the surface of the battery core can generate different heat according to different use conditions, and the heat accumulation to a certain extent can influence the performance and service life of the whole battery pack system and even influence the safety of the whole system. In this regard, the prior art typically uses air-cooled or liquid-cooled means to cool the battery pack.
The liquid cooling measure is to install a liquid cooling pipeline at the bottom of the whole battery pack support piece or the periphery of the battery cell, or set a bottom plate in the support piece as a liquid cooling plate, and the liquid cooling pipeline or the liquid cooling plate is matched with an external liquid cooling unit to feed liquid cooling agent into the liquid cooling pipeline, so that the liquid cooling agent flows in the pipeline or the liquid cooling plate to take away the heat of the battery cell. The liquid cooling pipeline is configured or the supporting bottom plate is arranged to be a liquid cooling plate, the liquid cooling unit is matched, the cost is high, the energy consumption is high when the liquid cooling unit continuously works, in addition, the volume of the whole battery pack can be enlarged through the liquid cooling pipeline, and in order to solve the problem, the air cooling battery pack is provided.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide an air-cooled battery pack, which can ensure smooth heat dissipation of the battery pack and reduce heat dissipation energy consumption of the battery pack.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an air-cooled battery pack comprises a plurality of battery cells, an FPC board, an air-cooled plate and a plurality of support columns; the battery cores are integrated at the upper end of the air cooling plate through the FPC board; the air cooling plate is a hollow plate structure; the support columns are arranged in the air cooling plate and used for stabilizing the hollow structure of the air cooling plate; the two open ends of the air cooling plate are respectively an air inlet and an air outlet; the battery pack also comprises a current limiting component which is fixedly arranged at the air inlet and/or the air outlet.
Preferably, the plurality of support columns are arranged in a plurality of rows on the inner side of the air cooling plate in the direction from the air inlet to the air outlet.
Preferably, the air cooling plate and the support column are both made of metal materials.
Preferably, the flow restriction assembly comprises a plurality of baffles; the plurality of the partition boards are arranged in a row and are arranged at the air inlet and the air outlet of the air cooling plate.
Preferably, the battery pack further comprises a plurality of dustproof screens; the dustproof screen cloth cladding is at air intake and air outlet.
Preferably, the flow limiting assembly comprises a flow control assembly, a worm and a bearing seat; the positions of the flow control assembly, the worm and the bearing seat correspond to the positions of the air inlet; the air cooling plate is provided with a top plate and a bottom plate; the worm is arranged at the upper end of the top plate through a bearing seat; the flow control assembly comprises a rotating plate, a rotating shaft and a worm wheel; the rotating plate is movably arranged between the top plate and the bottom plate through a rotating shaft; the worm wheel is arranged at the upper end part of the rotating shaft and is positioned on the upper side of the top plate; the flow control assembly is provided with a plurality of groups; a plurality of worm wheels are meshed with the worm.
Preferably, the height of the rotating plate is matched with the distance between the top plate and the bottom plate.
Preferably, the sizes of the rotating plates are matched with the sizes of the air inlets when the rotating plates rotate under the action of external force to the condition that the adjacent rotating plates are connected with each other.
Preferably, the current limiting assembly further comprises a driving motor; and the output end of the driving motor is connected with the worm.
Preferably, the driving motor is in circuit connection with a control system of the automobile.
Compared with the prior art, the utility model has the beneficial effects that:
the support piece of the battery cell is designed into the air cooling plate, the air duct is arranged in the air cooling plate, the air cooling plate is supported by the support column, the support column can not only play a role in supporting the top plate and the bottom plate of the air cooling plate, but also rapidly diffuse the heat of the battery cell absorbed by the top plate of the air cooling plate into the air duct by virtue of the heat dissipation area of the periphery of the support column, and the air cooling plate is contacted with external flowing air, so that the external air enters the air duct to take away the heat in the air duct, and the air cooling efficiency of the battery pack is improved;
through setting up a plurality of rotating plates in line with arranging at the air intake in forced air cooling board wind channel, a plurality of rotating plates realize synchronous rotation through worm gear, realize controlling the air flow that gets into forced air cooling board wind channel through control rotating plate pivoted angle, and then can make the radiating efficiency of this battery package controllable.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
FIG. 2 is a schematic diagram of a transverse cross-section of an air-cooled panel according to the present utility model;
FIG. 3 is a schematic view of a longitudinal section of an air cooling panel according to the present utility model;
FIG. 4 is a schematic diagram of a second embodiment of the present utility model;
FIG. 5 is a schematic diagram of an air inlet of a second air cooling plate according to an embodiment of the present utility model;
FIG. 6 is a schematic structural diagram of a third embodiment of the present utility model;
fig. 7 is a schematic view of the blade assembly structure of the present utility model.
In the figure: the air-cooled type air conditioner comprises an air cooling plate 1, a supporting column 2, a partition plate 3, a rotating plate 4, a rotating shaft 5, a worm wheel 6, a worm 7, a bearing seat 8, a dustproof screen 9, a top plate 11, a bottom plate 12, a left side plate 13 and a right side plate 14.
Detailed Description
The following detailed description of the utility model, taken in conjunction with the accompanying drawings, will provide those skilled in the art with a more readily understood understanding of how the utility model may be practiced. While the present utility model has been described in connection with the preferred embodiments thereof, these embodiments are set forth only and are not intended to limit the scope of the utility model.
First embodiment: referring to fig. 1-3, an air-cooled battery pack, comprising: the air cooling device comprises a plurality of electric cores (not shown in the figure), an FPC board (not shown in the figure), an air cooling plate 1 and a plurality of support columns 2, wherein when the air cooling device is implemented, the support columns 2 are arranged on the inner side of the air cooling plate 1, and the electric cores are integrated on the air cooling plate 1 through the FPC board.
The air cooling plate 1 is a hollow plate structure which is formed by sequentially encircling a top plate 11, a left side plate 13, a bottom plate 12 and a right side plate 14 and is open at the front end and the rear end, and because the battery core has large mass, a plurality of support columns 2 are fixedly arranged between the top plate 11 and the bottom plate 12 to play a supporting role; when the automobile is in practical application, the air duct on the inner side of the air cooling plate 1 is connected to the ventilation opening of the automobile bottom plate, and in a motion mode, air passes through the battery pack at a high speed through the air duct on the inner side of the air cooling plate 1 and takes away heat generated by discharging of the battery pack; it should be noted that, the air cooling plate 1 and the support column 2 are made of metal materials, the support column 2 not only can play a role in supporting the top plate 11 and the bottom plate 12, but also can rapidly diffuse the heat of the battery cells absorbed by the top plate 11 into the air duct by virtue of the heat dissipation area of the periphery of the support column 2, so that the air cooling efficiency is improved.
As shown in fig. 3, in order to make the air duct inside the air-cooling plate smooth, a plurality of support columns 2 are arranged in a plurality of rows in the air duct direction inside the air-cooling plate 1.
Specific embodiment II: on the basis of the first embodiment, in order to ensure the uniformity of heat dissipation of the support column 2 in the air duct, as shown in fig. 4 and 5, the battery pack further comprises a plurality of partition boards 3, wherein the partition boards 3 are arranged in a line and are arranged at the air inlet and the air outlet of the air cooling plate 1, so that the air inlet and the air outlet of the air cooling plate 1 are divided into a plurality of small inlets and small outlets, and when the battery pack is used, external air is divided into uniform multiple strands after entering the air cooling plate 1 under the action of the partition boards 3, so that the heat dissipation of each position on the air cooling plate 1 is more uniform, the occurrence of the phenomenon of partial uneven heat dissipation of the battery cell bottom is reduced, and the safety performance of the battery pack is improved.
Furthermore, in order to reduce the influence of dust or sundries in the air on the air cooling plate 1, the air inlet and the air outlet of the air cooling plate 1 are both provided with dustproof screens 9.
Third embodiment: on the basis of the first embodiment, in order to control the heat dissipation efficiency of the air cooling plate 1, it may also be understood that in order to control the air flow in the air duct of the air cooling plate 1, as shown in fig. 6 and fig. 7, the battery pack further includes a flow control assembly, a worm 7 and a bearing seat 8; the flow control assembly comprises a rotating plate 4, a rotating shaft 5 and a worm wheel 6, specifically, the rotating shaft 5 longitudinally penetrates through the rotating plate 4, the upper end part of the rotating shaft 5 is movably connected with a top plate 11, the lower end part of the rotating shaft 5 is movably connected with a bottom plate 12, the rotating plate 4 is positioned between the top plate 11 and the bottom plate 12, and the height of the rotating plate 4 is matched with the distance between the top plate 11 and the bottom plate 12; the worm wheel 6 is arranged at the upper end part of the rotating shaft 5 and is positioned on the upper side of the top plate 11; the flow control assemblies are provided with a plurality of groups, and the plurality of groups of flow control assemblies are arranged in a line at the air inlet of the air cooling plate 1;
the two bearing seats 8 are arranged, and the two bearing seats 8 are fixedly arranged at the upper end of the top plate 11 and correspond to the air inlets in position; the worm 7 is arranged on the upper side of the top plate 11 through the bearing seat 8, the worm gears 6 are meshed with the worm 7, the external force drives the worm 7 to rotate, and the rotation of the rotating plates 4 can be synchronously controlled, so that the opening size of the air inlet of the air cooling plate 1 is controlled, and the air flow in the air channel of the air cooling plate 1 is controlled; it should be noted that, when the plurality of rotating plates 4 rotate to the state that the adjacent rotating plates 4 are connected with each other, the air inlet of the air cooling plate 1 can be completely closed; in addition, for automatic control, one end of the worm 7 may be connected to an output of a driving motor (not shown in the drawing), and the driving motor is connected to a control system circuit of the automobile to receive control.
According to the technical scheme, the supporting piece of the battery cell is designed into the air cooling plate, the air duct is arranged in the air cooling plate, the air cooling plate is internally supported by the supporting columns, the supporting columns not only can play a role in supporting the top plate and the bottom plate of the air cooling plate, but also can rapidly diffuse heat of the battery cell absorbed by the top plate of the air cooling plate into the air duct by means of the heat dissipation area of the periphery of the supporting columns, and the air cooling plate is contacted with external flowing air, so that the external air enters the air duct to take away the heat in the air duct, and the air cooling efficiency of the battery pack is improved; through setting up a plurality of rotating plates in line with arranging at the air intake in forced air cooling board wind channel, a plurality of rotating plates realize synchronous rotation through worm gear, realize controlling the air flow that gets into forced air cooling board wind channel through control rotating plate pivoted angle, and then can make the radiating efficiency of this battery package controllable.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides an forced air cooling battery package, includes a plurality of electric core, FPC board, its characterized in that: the battery pack also comprises an air cooling plate (1) and a plurality of support columns (2); the plurality of battery cores are integrated at the upper end of the air cooling plate (1) through the FPC board; the air cooling plate (1) is a hollow plate structure; the support columns (2) are arranged in the air cooling plate (1) and are used for stabilizing the hollow structure of the air cooling plate (1); the two open ends of the air cooling plate (1) are respectively an air inlet and an air outlet; the battery pack also comprises a current limiting component which is fixedly arranged at the air inlet and/or the air outlet.
2. An air-cooled battery pack as claimed in claim 1, wherein: the support columns (2) are arranged on the inner side of the air cooling plate (1) in a plurality of rows in the direction from the air inlet to the air outlet.
3. An air-cooled battery pack as claimed in claim 1, wherein: the air cooling plate (1) and the support columns (2) are made of metal materials.
4. An air-cooled battery pack as claimed in claim 1, wherein: the flow restriction assembly comprises a plurality of baffles (3); the plurality of the partition plates (3) are arranged in a line and are arranged at the air inlet and the air outlet of the air cooling plate (1).
5. An air-cooled battery pack as claimed in claim 1, wherein: the battery pack also comprises a plurality of dustproof screens (9); the dustproof screen (9) is coated on the air inlet and the air outlet.
6. An air-cooled battery pack as claimed in claim 1, wherein: the flow limiting assembly comprises a flow control assembly, a worm (7) and a bearing seat (8); the positions of the flow control assembly, the worm (7) and the bearing seat (8) correspond to the positions of the air inlet; the air cooling plate (1) is provided with a top plate (11) and a bottom plate (12); the worm (7) is arranged at the upper end of the top plate (11) through a bearing seat (8); the flow control assembly comprises a rotating plate (4), a rotating shaft (5) and a worm wheel (6); the rotating plate (4) is movably arranged between the top plate (11) and the bottom plate (12) through the rotating shaft (5); the worm wheel (6) is arranged at the upper end part of the rotating shaft (5) and is positioned at the upper side of the top plate (11); the flow control assembly is provided with a plurality of groups; a plurality of worm wheels (6) are meshed with the worm (7).
7. An air-cooled battery pack as set forth in claim 6, wherein: the height of the rotating plate (4) is matched with the distance between the top plate (11) and the bottom plate (12).
8. An air-cooled battery pack as set forth in claim 6, wherein: the sizes of the rotating plates (4) when the rotating plates rotate to the adjacent rotating plates (4) are mutually connected under the action of external force are matched with the sizes of the air inlets.
9. An air-cooled battery pack as set forth in claim 6, wherein: the current limiting assembly further comprises a driving motor; the output end of the driving motor is connected with the worm (7).
10. An air-cooled battery pack as in claim 9, wherein: the driving motor is in circuit connection with a control system of the automobile.
CN202322494238.1U 2023-09-14 2023-09-14 Air-cooled battery pack Active CN220796873U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322494238.1U CN220796873U (en) 2023-09-14 2023-09-14 Air-cooled battery pack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322494238.1U CN220796873U (en) 2023-09-14 2023-09-14 Air-cooled battery pack

Publications (1)

Publication Number Publication Date
CN220796873U true CN220796873U (en) 2024-04-16

Family

ID=90654183

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322494238.1U Active CN220796873U (en) 2023-09-14 2023-09-14 Air-cooled battery pack

Country Status (1)

Country Link
CN (1) CN220796873U (en)

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