Large cylindrical battery pack box body structure

Abstract

The utility model relates to the technical field of battery packs, in particular to a large cylindrical battery pack box body structure which comprises a frame body, a bottom plate is fixedly connected to the frame body, a limiting plate is fixedly connected to the frame body, a plurality of mounting holes are formed in the limiting plate, connecting cylinders are fixedly connected to the interiors of the mounting holes, and the connecting cylinders are fixedly connected to the bottom plate and the limiting plate. A plurality of connecting cylinders are arranged in the frame body, communicating cavities are formed in the connecting cylinders, the communicating cavities are communicated through guide pipes, connecting pipes are arranged on the guide pipes in a communicating mode, a shell is arranged on the connecting pipes in a communicating mode, an injection opening of the shell is in threaded connection with a connecting cover, and a box cover is arranged on the frame body. According to the utility model, the heat dissipation effect of the battery pack box body is ensured.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, and in particular to a large cylindrical battery pack housing structure. Background Technology

[0002] A large cylindrical battery pack enclosure is a structure used to encapsulate and protect large cylindrical battery packs. It is commonly used in automobiles and typically consists of a plastic bracket, a cooling mechanism, and connecting components. These components are connected and fixed together with adhesive to form a complete battery pack enclosure. When cooling the internal components, fans are usually used for heat dissipation. However, due to the obstruction of the batteries, each large cylindrical battery cannot be cooled, thus affecting the heat dissipation effect of the battery pack enclosure. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies that cannot dissipate heat from each large cylindrical battery, thus affecting the heat dissipation effect of the battery pack housing, and to propose a new structure for a large cylindrical battery pack housing.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A large cylindrical battery pack housing structure is designed, including a frame, a base plate fixedly connected to the frame, a limiting plate fixedly connected to the frame, multiple mounting holes on the limiting plate, a connecting cylinder fixedly connected to each of the mounting holes, a communicating cavity on each of the connecting cylinders, the communicating cavities being connected to each other via conduits, a connecting pipe connected to each of the conduits, a housing connected to each of the connecting pipes, a connecting cap threadedly connected to the injection port of the housing, and a housing cover on the frame.

[0006] Preferably, a plurality of heat sinks are fixedly connected at equal intervals on the housing, with one end of each heat sink located inside the housing and the other end extending out of the housing.

[0007] Preferably, a sealing gasket is fixedly connected to the lid, and an abutment frame is fixedly connected to the frame body, with the sealing gasket abutting against the frame body.

[0008] Preferably, a sealing strip is fixedly connected to the frame, and the sealing strip has a frame-shaped structure.

[0009] Preferably, the communicating cavity is filled with insulating coolant.

[0010] Preferably, the insulating coolant is alcohol.

[0011] Preferably, the base plate has fixing holes.

[0012] The beneficial effects of the large cylindrical battery pack housing structure proposed in this utility model are as follows: by cooling the large cylindrical batteries placed inside with the coolant in the connecting cavity, the heat dissipation effect of each large cylindrical battery is guaranteed. Furthermore, during use, as the vehicle moves, the coolant in the connecting cavity will slosh around, thereby exchanging flow with the liquid in the connecting shell, which helps to carry away the heat of the large cylindrical batteries and further improves the heat dissipation effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a large cylindrical battery pack box proposed in this utility model;

[0014] Figure 2 This is a perspective view of a large cylindrical battery pack housing structure proposed in this utility model;

[0015] Figure 3 This is a three-dimensional sectional view of a large cylindrical battery pack housing structure proposed in this utility model;

[0016] Figure 4 This utility model proposes a large cylindrical battery pack housing structure. Figure 3 Enlarged view of section A.

[0017] In the diagram: 1. Cover; 2. Frame; 3. Base plate; 4. Connecting pipe; 5. Shell; 6. Heat sink; 7. Sealing strip; 8. Connecting cylinder; 9. Limiting plate; 10. Communicating cavity; 11. Conduit; 12. Connecting cover; 13. Abutment frame; 14. Sealing gasket. Detailed Implementation

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Example 1: Refer to Figure 1-4A large cylindrical battery pack housing structure includes a frame 2, a base plate 3 fixedly connected to the frame 2, and a fixing hole on the base plate 3 for mounting by bolts engaging with the fixing hole. A limiting plate 9 is fixedly connected to the frame 2, and multiple mounting holes are provided on the limiting plate 9. A connecting cylinder 8 is fixedly connected to each of the multiple mounting holes, and a connecting cavity 10 is provided on each of the multiple connecting cylinders 8. The multiple connecting cavities 10 are connected by a conduit 11, and the connecting cavities 10 are filled with insulating coolant. The insulating coolant is alcohol. Multiple conduits 11 are connected to connecting pipes 4, which connect the housing 5 to the communicating cavity 10. The housing 5 is fixedly connected to the frame 2, and its height is higher than the connecting cylinder 8. Coolant is injected into the housing 5 until the communicating cavity 10 is completely filled. A connecting cap 12 with anti-slip texture is threaded onto the injection port of the housing 5. When the liquid level in the housing 5 decreases, it is added by opening the connecting cap 12. A box cover 1 is provided on the frame 2. Alcohol is also injected into the connecting shell 5. Since alcohol is non-conductive, it increases safety during use. The coolant in the connecting cavity 10 cools the large cylindrical batteries, ensuring heat dissipation for each large cylindrical battery. Furthermore, since the temperature of the liquid in the connecting shell 5 is low and the temperature of the liquid in the connecting cavity 10 is high during use, the coolant in the connecting cavity 10 will slosh as the vehicle moves, thus exchanging flow with the liquid in the connecting shell 5. This helps to carry away the heat from the large cylindrical batteries, further improving the heat dissipation effect.

[0020] A sealing strip 7 is fixedly connected to the frame 2. The sealing strip 7 has a frame-shaped structure and plays a preliminary sealing role between the frame 2 and the box cover 1.

[0021] Example 2: Refer to Figure 1-3 As another preferred embodiment of the present invention, based on embodiment 1, a plurality of heat sinks 6 are fixedly connected at equal intervals on the housing 5. One end of the plurality of heat sinks 6 is located inside the housing 5 and the other end extends out of the housing 5. By using heat sinks 6, it is beneficial to dissipate the heat of the coolant inside the housing 5 into the air.

[0022] Example 3: Reference Figure 1-3 As another preferred embodiment of this utility model, based on embodiment 2, a sealing gasket 14 is fixedly connected to the lid 1, and an abutment frame 13 is fixedly connected inside the frame 2. The sealing gasket 14 abuts against the frame 2. When sealing, the lower surface of the sealing gasket 14 abuts against the abutment frame 13. The sealing gasket 14 and the frame 2 play a secondary sealing role, preventing dust and moisture from entering.

[0023] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A large cylindrical battery pack housing structure, comprising a frame (2), characterized in that, A base plate (3) is fixedly connected to the frame (2). A limiting plate (9) is fixedly connected to the frame (2). Multiple mounting holes are provided on the limiting plate (9). A connecting cylinder (8) is fixedly connected to each of the multiple mounting holes. A connecting cavity (10) is provided on each of the multiple connecting cylinders (8). The multiple connecting cavities (10) are connected to each other through a conduit (11). A connecting pipe (4) is connected to each of the multiple conduits (11). A housing (5) is connected to each of the multiple connecting pipes (4). A connecting cap (12) is threadedly connected to the injection port of the housing (5). A box cover (1) is provided on the frame (2).

2. The large cylindrical battery pack housing structure according to claim 1, characterized in that, Multiple heat sinks (6) are fixedly connected at equal intervals on the housing (5). One end of each heat sink (6) is located inside the housing (5), and the other end extends out of the housing (5).

3. The large cylindrical battery pack housing structure according to claim 1, characterized in that, A sealing gasket (14) is fixedly connected to the lid (1), and an abutment frame (13) is fixedly connected inside the frame (2). The sealing gasket (14) abuts against the frame (2).

4. The large cylindrical battery pack housing structure according to claim 3, characterized in that, A sealing strip (7) is fixedly connected to the frame (2), and the sealing strip (7) has a frame-shaped structure.

5. The large cylindrical battery pack housing structure according to claim 1, characterized in that, The connecting cavity (10) is filled with insulating coolant.

6. The large cylindrical battery pack housing structure according to claim 5, characterized in that, The insulating coolant is alcohol.

7. The large cylindrical battery pack housing structure according to claim 1, characterized in that, The base plate (3) has fixing holes.

Images