CN219393591U - Lower box of power battery pack with steel roller pressing structure - Google Patents
Lower box of power battery pack with steel roller pressing structure Download PDFInfo
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- CN219393591U CN219393591U CN202320568703.9U CN202320568703U CN219393591U CN 219393591 U CN219393591 U CN 219393591U CN 202320568703 U CN202320568703 U CN 202320568703U CN 219393591 U CN219393591 U CN 219393591U
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- box body
- battery box
- roll
- steel
- battery pack
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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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Abstract
The utility model provides a lower box body of a power battery pack with a steel roll pressing structure, which comprises a battery box body, partition plates and limiting plates, wherein the limiting plates are arranged on one side of the inside of the battery box body, the partition plates are arranged on one side of the limiting plates, the battery box body and the partition plates are formed by combining a plurality of roll steel rods, external welding spots are arranged on one side of each of the roll steel rods, and internal welding spots are arranged on one side of the inside of each of the roll steel rods; the hollow roller steel rod of the battery box body is formed, so that the whole weight of the battery pack is small, the material used for producing the hollow battery box body is less, the manufacturing cost is low, meanwhile, the solid battery box is not required to be welded in a large quantity, the fixation can be completed only by welding spot welding, welding slag is not easy to remain in the battery box body, the phenomenon of short circuit and ignition is not easy to occur, and the safety is high.
Description
Technical Field
The utility model relates to the field of lithium ion batteries, in particular to a lower box body of a power battery pack with a steel roll pressing structure.
Background
The secondary battery is also called a rechargeable battery or a storage battery, and is a battery which can be continuously used by activating active chemical substances in a charging mode after the battery is discharged, the conventional secondary battery is usually formed by combining single battery cells into a battery pack for use, and a battery pack box body is usually made of metal materials.
The battery box body in the prior art is generally made of solid lower metal materials, so that the whole weight of the battery pack is large, the materials for producing the solid battery box body are more, the manufacturing cost is high, a large amount of welding is required to be carried out on the solid battery box body, welding slag is easy to remain in the battery box body, short circuit and fire are easy to occur, and the safety is poor.
Therefore, we propose a lower box of a power battery pack with a steel roll structure to solve the above problems.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a lower box body of a power battery pack with a steel roll pressing structure.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a box under steel roll pressure structure power battery package, includes battery box, division board and limiting plate, battery box inside one side is equipped with the limiting plate, limiting plate one side is equipped with the division board, battery box and division board are many roller steel pole combinations and form, many one side of roller steel pole all is equipped with outside solder joint, many the inside one side of roller steel pole all is equipped with inside solder joint.
Further preferably, the inside of the plurality of roller steel bars is hollow.
Further preferably, the inner parts of the plurality of the roller steel bars are all in a closed rectangular shape.
Further preferably, the plurality of roll steel bars are each formed by roll forging.
Further preferably, the separation plate and the limiting plate are fixed with the battery box body through bolts or welding.
Compared with the prior art, the utility model has the beneficial effects that:
the hollow roller steel rod of the battery box body is formed, so that the whole weight of the battery pack is small, the material used for producing the hollow battery box body is less, the manufacturing cost is low, meanwhile, the solid battery box is not required to be welded in a large quantity, the fixation can be completed only by welding spot welding, welding slag is not easy to remain in the battery box body, the phenomenon of short circuit and ignition is not easy to occur, and the safety is high.
Drawings
Fig. 1 is a schematic diagram of a lower box of a power battery pack with a steel roll pressing structure;
FIG. 2 is a schematic view showing the internal structure of the partition plate in FIG. 1;
fig. 3 is a schematic view of the internal structure of the battery case of fig. 1.
In the figure: 1. a battery case; 2. a partition plate; 3. a limiting plate; 4. a roller steel rod; 5. an external solder joint; 6. and internal welding spots.
Detailed Description
The technical solution of embodiment 3 of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present utility model, and it is apparent that the described embodiment is only a part of embodiments of the present utility model, not all embodiments.
Referring to fig. 1-3, a lower box of a power battery pack with a steel roll pressing structure comprises a battery box body 1, a partition plate 2 and a limit plate 3, wherein the limit plate 3 is arranged on one side of the inside of the battery box body 1, the partition plate 2 is arranged on one side of the limit plate 3, the limit plate 3 and the battery box body 1 are separated into cavities for placing components such as an output electrode, the partition plate 2, the battery box and the limit plate 3 are jointly separated into a plurality of battery core cavities for placing battery cores, and meanwhile, the limit plate 3 can limit and fix single battery cores.
The separation plate 2 and the limiting plate 3 are fixed with the battery box 1 through bolts or welding, the separation plate 2 can be fixed at a proper position according to the size of the battery cell through the connection mode, and the battery cell cavities suitable for the battery cells with different sizes can be separated, so that the battery cell structure can be suitable for the battery cells with different sizes.
The battery box body 1 and the division plate 2 are formed by combining a plurality of roller steel rods 4, one side of each roller steel rod 4 is provided with an external welding spot 5, one side of each roller steel rod 4 is provided with an internal welding spot 6, spot welding can be carried out uniformly through the internal welding spots 6 and the external welding spots 5, the plurality of roller steel rods 4 can be fixed, and time can be saved when strength is ensured by carrying out spot welding uniformly.
The hollow roller steel bar 4 of the battery box body 1 is formed, so that the whole weight of the battery pack is small, the material consumption for producing the hollow battery box body 1 is less, the manufacturing cost is low, meanwhile, the solid battery box is not required to be welded in a large quantity, the fixation can be completed only by welding spot welding, welding slag is not easy to remain in the battery box body 1, short circuit and fire are not easy to occur, and the safety is strong
The roller steel bars 4 are hollow, so that the overall weight of the battery box 1 can be effectively reduced, the water cooling pipes used for cooling can be placed in the roller steel bars 4, the electric cores in the battery box 1 can be cooled from all directions, and the heat dissipation performance can be effectively improved.
The inside of many roller steel pole 4 all is confined rectangle shape, and the rectangle shape can effectually promote stability, and the rectangle shape is comparatively regular simultaneously, can promote space utilization, compares other shapes and can place more monomer electricity core and promote energy density.
The roll steel bars 4 are formed by roll forging, the roll forging process is quicker and more accurate than stamping and extrusion, and meanwhile, the roll forging process is more suitable for mass production, so that the production efficiency can be effectively improved.
Claims (5)
1. The utility model provides a box under steel roll pressure structure power battery package, includes battery box, division board and limiting plate, inside one side of battery box is equipped with the limiting plate, limiting plate one side is equipped with the division board, its characterized in that, battery box and division board are many roller steel pole combinations and form, many one side of roller steel pole all is equipped with outside solder joint, many the inside one side of roller steel pole all is equipped with inside solder joint.
2. The lower box body of the power battery pack with the steel roll pressing structure according to claim 1, wherein the inside of the plurality of roll steel rods is hollow.
3. The lower box body of the power battery pack with the steel roll pressing structure according to claim 1, wherein the inner parts of the plurality of roll steel bars are all in a closed rectangular shape.
4. The lower case of a power battery pack of a steel roll structure according to claim 1, wherein a plurality of the roll steel bars are all formed by roll forging.
5. The lower box body of the power battery pack with the steel roll pressing structure according to claim 1, wherein the separation plate and the limiting plate are fixed with the battery box body through bolts or welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320568703.9U CN219393591U (en) | 2023-03-22 | 2023-03-22 | Lower box of power battery pack with steel roller pressing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320568703.9U CN219393591U (en) | 2023-03-22 | 2023-03-22 | Lower box of power battery pack with steel roller pressing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219393591U true CN219393591U (en) | 2023-07-21 |
Family
ID=87191071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320568703.9U Active CN219393591U (en) | 2023-03-22 | 2023-03-22 | Lower box of power battery pack with steel roller pressing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219393591U (en) |
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2023
- 2023-03-22 CN CN202320568703.9U patent/CN219393591U/en active Active
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