CN219739053U - Air duct system of battery pack - Google Patents
Air duct system of battery pack Download PDFInfo
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- CN219739053U CN219739053U CN202320669871.7U CN202320669871U CN219739053U CN 219739053 U CN219739053 U CN 219739053U CN 202320669871 U CN202320669871 U CN 202320669871U CN 219739053 U CN219739053 U CN 219739053U
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- air duct
- battery
- branch
- wind channel
- air
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- 239000000178 monomer Substances 0.000 claims description 20
- 230000017525 heat dissipation Effects 0.000 abstract description 13
- 230000007547 defect Effects 0.000 abstract description 3
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses an air duct system of a battery pack, and aims to solve the defect that turbulent flow is caused by air flow opposite flushing generated by an existing symmetrical branch air duct. The utility model comprises a middle air duct arranged between two battery pairs and a plurality of branch air ducts connected to two sides of the middle air duct, wherein each battery pair comprises a plurality of battery units arranged along the length direction of the middle air duct, each branch air duct is positioned between adjacent battery units, and the air duct opening of each branch air duct is projected to fall on the battery unit on the other side on a plane vertical to the radial direction of the middle air duct. All branch air channels communicated with the middle air channel are not opposite, and the air channel openings of the branch air channels are staggered, so that the turbulent flow phenomenon caused by air flow generated by the branch air channels is avoided, the resistance of an air channel system is reduced, and the heat dissipation efficiency is improved.
Description
Technical Field
The utility model relates to the field of thermal management of energy storage batteries, in particular to an air duct system of a battery pack.
Background
Currently, CTP (CellTo Pack) technology is popular for power battery packs. The battery pack adopting the CTP technology is a non-module battery pack, and a plurality of batteries are accommodated in a battery box to directly form the battery pack.
Because a large amount of batteries are stacked and stacked, a large amount of heat can be generated under the working state, once the heat cannot be smoothly led out, the overall performance of the battery pack can be influenced, and the problems of service life attenuation, safety risk improvement and the like of the battery pack are caused.
The present air-cooled battery pack adopts a heat dissipation structure such as CN 216750138U-battery pack heat dissipation structure, and CN 216750138U-battery pack heat dissipation structure application discloses a battery pack heat dissipation structure, comprising: the battery comprises a battery frame, a battery module, a heat dissipation device, a fan and a wire holder; the battery module and the heat dissipation device are installed in the battery frame; the fan and the wire holder are arranged on the battery frame; the battery module comprises a plurality of battery cells, and the heat dissipation device is arranged on each battery cell. The middle air duct in the structure is a main flow and is led out or led in through a branch flow.
The problem of this kind of structure lies in, because the battery monomer of middle wind channel both sides is symmetrical distribution in middle wind channel both sides, this means that the tributary wind channel is also symmetrical, and the wind channel mouth in the tributary wind channel of symmetry is just right, and the air current hedging that produces when the during operation can cause the turbulent flow, improves the resistance of whole wind channel system, has reduced the throughput of air current, has caused the cooling efficiency of battery package to be lower.
According to the defects of the prior structure, the utility model provides an air duct system of a battery pack, which aims to avoid the turbulence phenomenon caused by the opposite impact of air flow generated by a branch air duct, thereby reducing the resistance of the air duct system and improving the heat dissipation efficiency.
Disclosure of Invention
The utility model overcomes the defect that the opposite impact of the air flow generated by the existing symmetrical branch air duct can cause turbulent flow, and provides the air duct system of the battery pack, which can avoid the turbulent flow phenomenon caused by the air flow generated by the branch air duct, thereby reducing the resistance of the air duct system and improving the heat dissipation efficiency.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides an air duct system of battery package, includes the middle wind channel and a plurality of branch wind channel of connecting in middle wind channel both sides that set up between two battery pairs, and the battery is to including a plurality of battery monomer that arrange along middle wind channel length direction, and branch wind channel is located between the adjacent battery monomer, on the radial direction vertically plane with middle wind channel, the wind channel mouth projection in branch wind channel falls on the battery monomer of opposite side.
According to the utility model, the positions of the battery cells are adjusted, so that the positions of the branch air ducts between adjacent battery cells are changed. So that the air duct openings of the branch air ducts at the two sides of the middle air duct are not right opposite. Because the specifications of the battery monomers are the same, the battery monomers are staggered, and the air duct openings of all the branch air ducts are not right. Under the above characteristics, none of the airflows passing through the respective air duct openings face each other. Through the structure, the turbulent flow phenomenon caused by the air flow generated by the branch air duct can be avoided, so that the resistance of an air duct system is reduced, and the heat dissipation efficiency is improved.
Preferably, the air duct opening of the branch air duct is projected to fall to the middle position in the battery monomer at the other side. According to the utility model, the air duct ports on two sides are arranged at the maximum distance position of the opposite air duct ports, so that the influence of air flow generated by the branch air duct on other branch air ducts is reduced to the minimum.
Preferably, the number of battery cells on both sides of the middle air duct is the same. In the scheme, the battery monomers are staggered, and the width of the branch air duct is certain, so that the batteries on one side are arranged in front, and the batteries on the other side are arranged in rear.
Preferably, the difference in the number of battery cells on both sides of the middle air duct is 1. The fewer number of battery pairs in this scheme is shorter.
Preferably, the battery box structure comprises a front baffle and a rear baffle, and the thicknesses of the front baffle and the rear baffle at the left side and the right side of the middle air duct are adapted to the length and the position of the corresponding battery pair. The structure realizes the same installation flow as the existing aligned battery pack mode, and does not need to adjust the production process.
Preferably, an air duct plate communicated with the middle air duct is attached between the adjacent battery monomers, and a branch air duct is formed in the air duct plate in a hollow mode.
Compared with the prior art, the utility model has the beneficial effects that: all branch air channels communicated with the middle air channel are not opposite, and the air channel openings of the branch air channels are staggered, so that the turbulent flow phenomenon caused by air flow generated by the branch air channels is avoided, the resistance of an air channel system is reduced, and the heat dissipation efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of some embodiments of the utility model;
FIG. 2 is a simplified schematic diagram of FIG. 1;
FIG. 3 is a schematic view of the structure of other embodiments of the present utility model;
FIG. 4 is a simplified schematic diagram of FIG. 3;
in the figure:
the air conditioner comprises a middle air duct 1, a branch air duct 2, a battery monomer 3, a front baffle 4, a rear baffle 5 and an air duct plate 6.
Detailed Description
The disclosure is further described below with reference to the drawings and examples.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the 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.
Examples:
the utility model provides an air duct system of battery package, as shown in fig. 2, 4, including setting up the middle wind channel 1 and a plurality of branch wind channel 2 of connecting in middle wind channel 1 both sides between two battery pairs, the battery is to including a plurality of battery monomer 3 of arranging along middle wind channel 1 length direction, and branch wind channel 2 is located between the adjacent battery monomer 3, on the plane perpendicular to middle wind channel 1 radial direction, the wind channel mouth projection of branch wind channel 2 falls on the battery monomer 3 of opposite side. Wherein, air duct plates 6 communicated with the middle air duct 1 are attached between adjacent battery monomers 3, and branch air ducts 2 are formed in the air duct plates 6 in a hollow mode.
The device also comprises a box body structure for positioning the battery monomer 3, wherein the box body structure comprises a front baffle 4 and a rear baffle 5, and the thicknesses of the front baffle 4 and the rear baffle 5 at the left side and the right side of the middle air duct 1 are adapted to the length and the position of the corresponding battery pair. The structure realizes the same installation flow as the existing aligned battery pack mode, and does not need to adjust the production process.
According to the utility model, the positions of the battery cells 3 are adjusted, so that the positions of the branch air ducts 2 between adjacent battery cells 3 are changed. So that the air duct openings of the branch air ducts 2 on the two sides of the middle air duct 1 are not opposite. Because the specifications of the battery cells 3 are the same, the air channel openings of the branch air channels 2 are not right opposite by staggering the battery cells 3. Under the above characteristics, none of the airflows passing through the respective air duct openings face each other. Through the structure, the turbulent flow phenomenon caused by the air flow generated by the branch air duct can be avoided, so that the resistance of an air duct system is reduced, and the heat dissipation efficiency is improved.
The air channel opening of the branch air channel 2 is projected to be positioned in the middle position of the battery monomer 3 at the other side. According to the utility model, the air duct ports on two sides are arranged at the maximum distance position of the opposite air duct ports, so that the influence of air flow generated by the branch air duct 2 on other branch air ducts 2 is reduced to the minimum.
As shown in fig. 1 and 2, in some embodiments, the number of battery cells 3 on both sides of the middle duct 1 is the same. In the scheme, the battery monomers 3 are staggered, and the width of the branch air duct 2 is constant, so that the battery pair on one side is arranged in front, and the battery pair on the other side is arranged in rear.
In other embodiments, as shown in fig. 3 and 4, the number of battery cells 3 on both sides of the middle duct 1 is 1. The fewer number of battery pairs in this scheme is shorter.
The above-described embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.
Claims (6)
1. The utility model provides an air duct system of battery package, its characterized in that includes the middle wind channel that sets up between two battery pairs and a plurality of branch wind channel of connecting in middle wind channel both sides, and the battery is to including a plurality of battery monomers of arranging along middle wind channel length direction, and branch wind channel is located between the adjacent battery monomers, on the plane perpendicular with middle wind channel radial direction, the wind channel mouth projection of branch wind channel falls on the battery monomer of opposite side.
2. The air duct system of claim 1, wherein the air duct opening of the branch air duct projects to a middle position in the battery cell at the other side.
3. The air duct system of claim 2, wherein the number of battery cells on each side of the central air duct is the same.
4. The air duct system of claim 2, wherein the difference in the number of battery cells on both sides of the middle air duct is 1.
5. The battery pack duct system of claim 3 or 4, further comprising a case structure for positioning the battery cells, the case structure including a front baffle and a rear baffle, the thicknesses of the front baffle and the rear baffle on the left and right sides of the middle duct being adapted to the length and the position of the corresponding battery pair.
6. The air duct system of a battery pack according to claim 1, wherein an air duct plate communicated with the middle air duct is attached between adjacent battery cells, and a branch air duct is formed in the air duct plate in a hollow mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320669871.7U CN219739053U (en) | 2023-03-30 | 2023-03-30 | Air duct system of battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320669871.7U CN219739053U (en) | 2023-03-30 | 2023-03-30 | Air duct system of battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219739053U true CN219739053U (en) | 2023-09-22 |
Family
ID=88056807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320669871.7U Active CN219739053U (en) | 2023-03-30 | 2023-03-30 | Air duct system of battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219739053U (en) |
-
2023
- 2023-03-30 CN CN202320669871.7U patent/CN219739053U/en active Active
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