Quickly replaceable modular new energy automobile battery box

By using modular design and bolted quick-disassembly and plug-in connection, combined with air circulation cooling from blowers and exhaust fans, the problems of complex assembly and low heat dissipation efficiency of battery boxes in new energy vehicles are solved, enabling rapid replacement and efficient heat dissipation of battery packs.

CN224367029UActive Publication Date: 2026-06-16NANJING SCAGE AUTOMOBILE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING SCAGE AUTOMOBILE TECH CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The existing assembly process for battery boxes in new energy vehicles is complex and cumbersome, making it impossible to quickly replace profiles and battery packs, which affects assembly efficiency and maintenance costs.

Method used

The modular design, which uses bolted connections and plug-in joints, includes components such as a base plate, top plate, side plates, and middle partition. The battery pack can be quickly replaced by bolted disassembly and plugging, and a forced air circulation cooling system is provided in conjunction with a blower and exhaust fan.

Benefits of technology

It enables rapid battery pack replacement and efficient heat dissipation, shortens replacement time, reduces assembly and maintenance costs, and maintains the battery pack at a suitable temperature through forced air circulation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224367029U_ABST
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Abstract

The utility model relates to new energy automobile battery box field discloses a quick replacement's modularization new energy automobile battery box, including bottom plate, the bottom plate bottom is connected with the mounting block through bolt, the mounting block top is connected with the top plate through bolt, the bottom plate top and the top plate bottom all are fixedly connected with the baffle, the mounting block outer wall is fixedly connected with the short side board, the short side board is provided with two groups, two groups short side board left and right sides all are inserted with long side board, two groups long side board middle part inner wall are inserted with the bulkhead. In the utility model, the quick assembly and disassembly of each component are realized through bolt connection and insertion cooperation, when needing to replace the battery pack, just need to unscrew the bolt of connecting mounting block and bottom plate, top plate, can take down the top plate, then can conveniently take out the internal battery pack and replace the new battery pack, the whole process does not need complicated dismounting procedure, greatly shortens the battery replacement time.
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Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle battery boxes, and in particular to a modular new energy vehicle battery box that can be quickly replaced. Background Technology

[0002] With increasing global attention to environmental protection and sustainable development, new energy vehicles, as a clean energy mode of transportation, have developed rapidly. As the core component of new energy vehicles, the performance and stability of the battery directly affect the overall vehicle operation. As a key device for protecting the battery, the battery box must not only provide reliable physical protection for the battery, but also have good heat dissipation performance to ensure that the battery works in a suitable temperature environment.

[0003] Most existing traditional battery box assemblies are assembled by welding or bolting together multiple sheet metal parts and profiles, and provide external protection for the battery pack through the combination of external profiles.

[0004] However, the large number of existing sheet metal parts, profiles, and bolts makes the assembly process extremely complex and cumbersome, making it impossible to quickly replace individual profiles and battery packs. This seriously affects the assembly efficiency and maintenance costs of the battery box. Therefore, a modular new energy vehicle battery box that can be quickly replaced is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a modular new energy vehicle battery box that can be quickly replaced, aiming to improve the problem that existing technologies cannot quickly replace individual profiles and battery packs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a modular new energy vehicle battery box that can be quickly replaced, including a base plate, a mounting block connected to the bottom of the base plate by bolts, a top plate connected to the top of the mounting block by bolts, a stop block fixedly connected to the top of the base plate and the bottom of the top plate, a short side plate fixedly connected to the outer wall of the mounting block, two sets of short side plates, long side plates inserted into the left and right sides of the two sets of short side plates, and a middle partition plate inserted into the inner wall of the middle of the two sets of long side plates.

[0007] As a further description of the above technical solution:

[0008] The bottom plate and the top plate are both fixedly connected to the top of the base plate and the bottom of the top plate. The outer walls of the two sets of short side plates are both fixedly connected to the filter screens. The inner wall of the filter screen on the left side is fixedly connected to the blower, and the inner wall of the filter screen on the right side is fixedly connected to the exhaust fan.

[0009] As a further description of the above technical solution:

[0010] The bolt is threaded onto the inner wall of the mounting block, the bottom of the mounting block is in contact with the top of the base plate, and the top of the mounting block is in contact with the bottom of the top plate.

[0011] As a further description of the above technical solution:

[0012] The bottom of the short side plate is in contact with the top of the bottom plate, and the top of the short side plate is in contact with the bottom of the top plate.

[0013] As a further description of the above technical solution:

[0014] The bottom of the long side plate is in contact with the top of the bottom plate, and the top of the long side plate is in contact with the bottom of the top plate.

[0015] As a further description of the above technical solution:

[0016] The bottom of the partition plate is in contact with the top of the bottom plate, and the top of the partition plate is in contact with the bottom of the top plate.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the long side plate is in contact with the inner wall of the block, and the middle partition is inserted into the inner wall of the block.

[0019] As a further description of the above technical solution:

[0020] The bottom of the filter screen is in contact with the top of the base plate, and the top of the filter screen is in contact with the bottom of the top plate.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the rapid assembly and disassembly of each component is achieved through bolt connection and plug-in cooperation. When the battery pack needs to be replaced, simply unscrew the bolts connecting the mounting block to the bottom plate and top plate to remove the top plate. Then, the internal battery pack can be easily removed and replaced with a new battery pack. The whole process does not require complicated disassembly procedures, which greatly shortens the battery replacement time.

[0023] 2. In this utility model, a support block is provided to elevate the battery pack, creating an airflow gap between the top and bottom of the battery pack, which lays a good foundation for heat dissipation. At the same time, the blower on the inner wall of the left filter can draw in external or air-conditioned cold air, while the exhaust fan on the inner wall of the right filter can expel internal hot air, forming a forced air circulation. The hollow tubular structure and surface holes of the partition further promote airflow inside the box. Together with the blower and exhaust fan, the heat generated by the battery pack during operation can be quickly removed, effectively reducing the overall temperature of the battery box and reducing the temperature difference between the batteries. Attached Figure Description

[0024] Figure 1This is a three-dimensional schematic diagram of the top plate and the overall structure of a modular new energy vehicle battery box that can be quickly replaced according to this utility model.

[0025] Figure 2 This is a three-dimensional schematic diagram of the top plate of a modular new energy vehicle battery box that can be quickly replaced according to this utility model.

[0026] Figure 3 This is an exploded three-dimensional schematic diagram of the overall battery box of a modular new energy vehicle battery box that can be quickly replaced according to this utility model.

[0027] Figure 4 This is a three-dimensional schematic diagram of a fan and blower for a modular new energy vehicle battery box that can be quickly replaced, as proposed in this utility model.

[0028] Figure 5 This is a three-dimensional schematic diagram of the overhead block of a modular new energy vehicle battery box that can be quickly replaced according to this utility model.

[0029] Legend:

[0030] 1. Base plate; 2. Stop block; 3. Bolt; 4. Mounting block; 5. Top plate; 6. Short side plate; 7. Long side plate; 8. Middle partition; 9. Overhead block; 10. Filter screen; 11. Blower; 12. Exhaust fan. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3This utility model provides an embodiment of a modular new energy vehicle battery box that can be quickly replaced, including a base plate 1, which serves as the bottom support plate of the battery box. A connecting groove is provided on the top to prevent pressure on the wiring harnesses connecting multiple battery packs. A mounting block 4 is connected to the bottom of the base plate 1 via bolts 3. The mounting block 4 is used to mount the base plate 1 and top plate 5 vertically via bolts 3. The top of the mounting block 4 is connected to the top plate 5 via bolts 3. The top plate 5 is the top cover of the battery box and has a connecting groove with the same function as the base plate 1. A stop block 2 is fixedly connected to the top of the base plate 1 and the bottom of the top plate 5. The stop block 2 provides support for the middle of the long side plate 7, preventing it from bending outwards under pressure. A short side plate 6 is fixedly connected to the outer wall of the mounting block 4. The short side plate 6 is used to laterally seal the battery pack between the base plate 1 and the top plate 5, and is connected to the base plate 1 and top plate 5 along with the mounting block 4. Two sets of short side plates 6 are provided, one on each side. Each of the two sets of long side plates 7 is inserted into a battery pack between the bottom plate 1 and the top plate 5. The long side plates 7 are used to laterally seal the battery pack between the bottom plate 1 and the top plate 5. They are inserted into the inner wall of the end of the short side plate 6, forming a U-shaped frame with the short side plate 6. A partition plate 8 is inserted into the inner wall of the middle of the two sets of long side plates 7. The partition plate 8 is a hollow tubular plate with several sets of holes on its surface to divide the battery pack while allowing internal air circulation. Bolts 3 are threaded onto the inner wall of the mounting block 4. The bottom of the mounting block 4 is connected to the bottom plate 1. The tops of the mounting block 4 and the bottom of the top plate 5 are in contact. The bottom of the short side plate 6 and the top of the bottom plate 1 are in contact. The top of the short side plate 6 and the bottom of the top plate 5 are in contact. The bottom of the long side plate 7 and the top of the bottom plate 1 are in contact. The top of the long side plate 7 and the bottom of the top plate 5 are in contact. The bottom of the middle partition plate 8 and the top of the bottom plate 1 are in contact. The top of the middle partition plate 8 and the bottom of the top plate 5 are in contact. The outer wall of the long side plate 7 and the inner wall of the stop block 2 are in contact. The middle partition plate 8 is inserted into the inner wall of the stop block 2.

[0033] Reference Figures 3-5 The top of the base plate 1 and the bottom of the top plate 5 are both fixedly connected to the overhead blocks 9. Several sets of overhead blocks 9 are set to suspend the battery pack, so that the top and bottom of the battery pack can maintain air circulation and play a role in heat dissipation and air conduction. The outer walls of the two sets of short side plates 6 are fixedly connected to the filters 10. The filters 10 are used to block large particles of dust and foreign objects from entering. They can be used with the car frame to prevent the battery pack from being directly exposed to the outside. They can also be connected to the air conditioning vents of the car to provide a suitable operating temperature for the battery pack. The inner wall of the filter 10 on the left is fixedly connected to the blower 11. The blower 11 is used to draw in outside air or cold air from the air conditioning into the battery box to provide a cooling effect for the battery pack. The inner wall of the filter 10 on the right is fixedly connected to the exhaust fan 12. The exhaust fan 12 is used to draw in hot air from inside the battery box and exhaust it to provide heat dissipation for the battery pack. The bottom of the filter 10 is in contact with the top of the base plate 1, and the top of the filter 10 is in contact with the bottom of the top plate 5.

[0034] Working principle: The base plate 1 serves as the bottom support foundation and is connected to the bottom of the mounting block 4 by bolts 3. The top of the mounting block 4 is then connected to the top plate 5 by bolts 3, forming an upper and lower load-bearing frame. The connecting groove between the base plate 1 and the top plate 5 can protect the battery pack wiring harness. The stop block 2 is fixed to the top of the base plate 1 and the bottom of the top plate 5, providing support for the middle of the long side plate 7 to prevent deformation. The short side plate 6 is fixed to the outer wall of the mounting block 4. The two sets of short side plates 6 are inserted into the long side plates 7 on the left and right sides to form a U-shaped lateral sealing frame. The middle partition plate 8 is inserted into the inner wall of the middle of the two sets of long side plates 7 and the inner wall of the stop block 2 to achieve internal division and air circulation. All components are connected and interlocked by bolts 3 and can be quickly assembled into a whole by contact and contact, which is convenient for disassembly and replacement.

[0035] When dissipating heat from the battery pack, multiple sets of overhead blocks 9 at the top of the base plate 1 and the bottom of the top plate 5 suspend the battery pack, creating an airflow gap between the top and bottom of the battery pack, laying the foundation for heat dissipation. The filters 10 on the outer walls of the two sets of short side plates 6 block large particles of impurities and can also be connected to the car's air conditioning vents to regulate the temperature. The blower 11 on the inner wall of the left filter 10 draws in external or air conditioning cold air, while the exhaust fan 12 on the inner wall of the right filter 10 exhausts internal hot air, forming a forced air circulation. The hollow tubular structure and surface holes of the partition plate 8 further promote airflow inside the box. Together with the blower 11 and the exhaust fan 12, the battery pack can be quickly cooled, ensuring that its operating temperature is suitable.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular new energy vehicle battery box that can be quickly replaced, comprising a base plate (1), characterized in that: The bottom of the base plate (1) is connected to the mounting block (4) by bolts (3), and the top of the mounting block (4) is connected to the top plate (5) by bolts (3). The top of the base plate (1) and the bottom of the top plate (5) are both fixedly connected to the stop block (2). The outer wall of the mounting block (4) is fixedly connected to the short side plate (6). There are two sets of the short side plate (6). The left and right sides of the two sets of short side plates (6) are each connected to a long side plate (7). The inner wall of the middle part of the two sets of long side plates (7) is connected to a middle partition plate (8).

2. The modular new energy vehicle battery box with quick replacement according to claim 1, characterized in that: The bottom plate (1) and the top plate (5) are both fixedly connected to the top of the bottom plate (1) and the bottom of the top plate (5). The two sets of short side plates (6) are both fixedly connected to the outer walls of the filter screens (10). The filter screens (10) on the left side are fixedly connected to the inner wall of the filter screens (10) and the filter screens (10) on the right side are fixedly connected to the inner wall of the filter screens (10) and the exhaust fan (12).

3. The modular new energy vehicle battery box with quick replacement according to claim 1, characterized in that: The bolt (3) is threaded onto the inner wall of the mounting block (4), the bottom of the mounting block (4) is in contact with the top of the base plate (1), and the top of the mounting block (4) is in contact with the bottom of the top plate (5).

4. The modular new energy vehicle battery box with quick replacement according to claim 1, characterized in that: The bottom of the short side plate (6) is in contact with the top of the bottom plate (1), and the top of the short side plate (6) is in contact with the bottom of the top plate (5).

5. A modular new energy vehicle battery box with quick replacement according to claim 1, characterized in that: The bottom of the long side plate (7) is in contact with the top of the bottom plate (1), and the top of the long side plate (7) is in contact with the bottom of the top plate (5).

6. A modular new energy vehicle battery box with quick replacement according to claim 1, characterized in that: The bottom of the partition plate (8) is in contact with the top of the bottom plate (1), and the top of the partition plate (8) is in contact with the bottom of the top plate (5).

7. A modular new energy vehicle battery box with quick replacement according to claim 1, characterized in that: The outer wall of the long side plate (7) is in contact with the inner wall of the stop block (2), and the middle partition plate (8) is inserted into the inner wall of the stop block (2).

8. A modular new energy vehicle battery box with quick replacement according to claim 2, characterized in that: The bottom of the filter screen (10) is in contact with the top of the base plate (1), and the top of the filter screen (10) is in contact with the bottom of the top plate (5).