Marine battery PACK box with efficient heat dissipation

Abstract

The utility model provides an efficient heat dissipation marine battery PACK box, which belongs to the technical field of battery boxes and comprises a box body, battery cells, partition plates, pole pieces, a heat conduction silica gel pad, a top cover and a handle, the box body is of a hollow rectangular structure, a plurality of partition plates distributed at equal intervals are fixed on a bottom plate in the box body, and the partition plates are fixed on the bottom plate in the box body. A plurality of battery cells are tightly arranged between the partition plates in an extrusion manner, the battery cells are fixedly connected with a bottom plate in the box body, the upper top surfaces of the battery cells are in laser welding with the pole pieces, a heat-conducting silica gel pad is arranged above the pole pieces, a top cover covers the heat-conducting silica gel pad, the top cover is fixedly connected with the box body through screws, and the top cover comprises a plurality of cooling fins which are arranged in order; the side wall of the box body is fixedly connected with a handle; the battery PACK box can solve the problems that an existing battery PACK box is complex in design and large in maintenance difficulty.

Description

Technical Field

[0001] This utility model belongs to the field of battery box technology, specifically, it relates to a marine battery PACK box with high heat dissipation. Background Technology

[0002] Currently, there are two main methods for heat dissipation in battery packs: air cooling and liquid cooling. Air cooling is mostly an open design with low IP protection ratings and insufficient waterproofing and moisture resistance. Long-term use on water surfaces can easily lead to circuit board corrosion and battery terminal rust, severely affecting battery pack performance. Liquid cooling mainly relies on bottom cooling, but since the heat-generating parts of the battery are at the terminals, bottom cooling efficiency is low. The system design is complex, requiring careful design of the cooling pipe layout and coolant flow path to ensure uniform cooling of all parts of the battery pack. It also requires complex engineering design and simulation analysis, increasing design difficulty and time costs. For example, different types of battery packs have varying shapes and sizes, requiring customized designs to achieve optimal cooling. Liquid cooling systems also need to consider collaboration with the battery management system (BMS) for real-time monitoring and control of battery temperature. This requires complex sensors and control systems, increasing system complexity and failure risk; maintenance requirements are high, as the coolant in the liquid cooling system needs regular replacement and maintenance to ensure its performance and reliability. The coolant may deteriorate, become contaminated, or leak over time, requiring regular inspection and replenishment. This increases maintenance workload and costs. Components such as cooling pipes and pumps may also experience blockages, leaks, or malfunctions, requiring timely repair or replacement. This necessitates specialized technicians and equipment, further increasing the difficulty and cost of maintenance. Utility Model Content

[0003] In view of this, the present invention provides a marine battery pack box with high-efficiency heat dissipation, which can solve the problems of complex design and difficult maintenance of existing battery pack boxes.

[0004] This utility model is implemented as follows:

[0005] This utility model provides a high-efficiency heat dissipation marine battery pack, which includes a box body, battery cells, partition plates, electrode plates, thermally conductive silicone pads, a top cover, and a handle. The box body is a hollow rectangular structure. Multiple partition plates are fixed on the bottom plate inside the box body. Multiple battery cells are tightly arranged between the partition plates. The battery cells are fixedly connected to the bottom plate inside the box body. The top surface of the battery cells is laser-welded to the electrode plates. A thermally conductive silicone pad is placed above the electrode plates. The top cover is covered on the thermally conductive silicone pad and fixedly connected to the box body by screws. The top cover includes multiple neatly arranged heat dissipation fins. A handle is fixedly connected to the side wall of the box body.

[0006] Based on the above technical solution, the high-efficiency heat dissipation marine battery pack of this utility model can be further improved as follows:

[0007] The partition consists of a horizontal long plate and multiple short plates perpendicular to it. The horizontal long plate runs through the center line of the short plates and is fixedly connected to the short plates. The partition has a fence-like structure.

[0008] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the design of the separator allows air to flow freely inside the battery pack, thereby improving heat dissipation and helping to reduce the operating temperature of the cells. The grid-like design of the separator maintains a certain distance between the cells, reducing the risk of collisions and short circuits, and improving system safety.

[0009] Furthermore, a column is fixedly connected to the top surface of the intersection of the long and short plates of the partition.

[0010] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the introduction of the support column strengthens the overall structure of the partition plate, making it more stable and able to withstand the weight of the battery cells and other components. In addition, the support column provides additional support, avoiding the risk of structural deformation or damage due to heavy loads.

[0011] Furthermore, the height of the separator is less than the height of the battery cell.

[0012] Furthermore, the overall height of the partition plate and the column is the same as the height of the battery cell.

[0013] Furthermore, the top surface of the thermally conductive silicone pad is higher than the top edge of the housing.

[0014] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: when the top surface of the thermal conductive silicone pad is higher than the box body, it can effectively prevent the accumulation of heat and promote the dissipation of heat outward, thereby improving the overall heat dissipation capacity of the equipment.

[0015] Furthermore, the top cover is a rectangular cover with an inner cavity, and its installation direction is such that the inner cavity faces downward, forming an inverted structure.

[0016] Furthermore, the top cover is made of aluminum alloy.

[0017] Furthermore, the heat sinks are evenly distributed in parallel plates above the top cover, and the surface of the heat sinks is provided with microgrooves to further increase the heat dissipation area.

[0018] Furthermore, thermally conductive adhesive is injected into the gap between the battery cell and the casing.

[0019] The beneficial effects of adopting the above-mentioned improved solution are as follows: The thermally conductive adhesive has high thermal conductivity, which can effectively conduct the heat generated from the battery cell to the housing, promoting heat dissipation and maintaining the battery cell temperature within a safe range. This material can fill the tiny gaps between the battery cell and the housing, reducing thermal resistance caused by air convection and improving overall thermal management. The thermally conductive adhesive provides a certain degree of elasticity, helping to absorb vibration and shock, thereby protecting the battery cell and other sensitive components and extending the service life of the equipment. After curing, the thermally conductive adhesive forms a strong bond, helping to improve the structural stability between the battery cell and the housing and preventing loosening or deformation caused by temperature changes.

[0020] Compared with existing technologies, the advantages of this utility model for a high-efficiency heat dissipation marine battery pack are:

[0021] 1. Multiple neatly arranged heat sinks are used, which significantly improves heat dissipation efficiency, helps keep the battery within the ideal operating temperature range, and extends battery life.

[0022] 2. The hollow rectangular box and fixed base plate design make the entire battery pack structure stable, effectively resisting external impacts and vibrations, and suitable for the harsh requirements of marine environments.

[0023] 3. The compact arrangement of the separator and the battery cells maximizes space utilization while ensuring good isolation between battery cells, reducing the risk of short circuits and interference.

[0024] 4. The battery cell is connected to the electrode plate via laser welding, ensuring excellent current conduction and heat exchange efficiency. Simultaneously, the application of thermally conductive silicone pads further enhances heat conduction between the battery cell and the heat sink, improving overall heat dissipation performance.

[0025] 5. The handle design on the side wall makes the battery pack easier to move and install, enhancing the flexibility of liquid operations and meeting the actual needs of ship operations.

[0026] 6. The efficient heat dissipation design not only reduces energy consumption, but also extends battery life, reduces resource waste, and promotes the realization of environmental protection concepts.

[0027] 7. Compared to the open design of air cooling and the complexity of liquid cooling, this design integrates multiple heat sinks on the top cover, optimizing the heat dissipation path and ensuring uniform heat dissipation throughout the battery. Since heat is mainly concentrated at the top of the cell, the top cooling design can more effectively reduce the temperature of the battery assembly without relying on the inefficient bottom cooling method.

[0028] 8. By avoiding the complex layout and flow path planning of cooling pipes, this design significantly simplifies the overall system architecture, reducing design difficulty and time costs. Simultaneously, the simple mechanical structure also contributes to improved product reliability. Since it does not rely on a liquid cooling system, there is no need to address coolant-related maintenance issues such as replacement, contamination, and leaks. The integrated mechanical design reduces potential blockages and failure points, significantly improving system stability and durability. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of a high-efficiency heat dissipation marine battery pack.

[0031] Figure 2 A schematic diagram of the internal structure of a high-efficiency heat dissipation marine battery pack.

[0032] Figure 3 A schematic diagram of the assembly of the electrode plates in a high-efficiency heat dissipation marine battery PACK box;

[0033] Figure 4 A schematic diagram of the assembly of a thermally conductive silicone pad for a high-efficiency heat dissipation marine battery pack.

[0034] Figure 5 A schematic diagram of the overall structure of a high-efficiency heat dissipation marine battery pack.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 10. Housing; 20. Battery cell; 30. Divider plate; 31. Column; 40. Electrode plate; 50. Thermal conductive silicone pad; 60. Top cover; 61. Heat sink; 70. Handle. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0038] like Figure 1-5The image shows an embodiment of a high-efficiency heat dissipation marine battery pack provided by this utility model. In this embodiment, it includes a box body 10, battery cells 20, partition plates 30, electrode plates 40, thermally conductive silicone pads 50, a top cover 60, and a handle 70. The box body 10 is a hollow rectangular structure. Multiple partition plates 30 are fixedly arranged at equal intervals on the bottom plate inside the box body 10. Multiple battery cells 20 are tightly arranged between the partition plates 30. The battery cells 20 are fixedly connected to the bottom plate inside the box body 10. The top surface of the battery cells 20 is laser-welded to the electrode plates 40. A thermally conductive silicone pad 50 is provided above the electrode plates 40. The top cover 60 is covered on the thermally conductive silicone pad 50. The top cover 60 is fixedly connected to the box body 10 by screws. The top cover 60 includes multiple neatly arranged heat dissipation fins 61. A handle 70 is fixedly connected to the side wall of the box body 10.

[0039] In the above technical solution, the partition plate 30 consists of a horizontal long plate and multiple short plates perpendicular to it. The horizontal long plate passes through the center line of the short plates and is fixedly connected to the short plates. The partition plate 30 has a fence-like structure.

[0040] Furthermore, in the above technical solution, a column 31 is fixedly connected to the top surface of the intersection of the long plate and the short plate of the partition plate 30.

[0041] Furthermore, in the above technical solution, the height of the separator 30 is less than the height of the battery cell 20.

[0042] Furthermore, in the above technical solution, the overall height of the separator 30 and the column 31 is the same as the height of the battery cell 20.

[0043] Furthermore, in the above technical solution, the top surface of the thermally conductive silicone pad 50 is higher than the top edge of the housing 10.

[0044] Furthermore, in the above technical solution, the top cover 60 is a rectangular cover with an inner cavity, and its installation direction is such that the inner cavity faces downward, forming an inverted structure.

[0045] Furthermore, in the above technical solution, the top cover 60 is made of aluminum alloy.

[0046] Furthermore, in the above technical solution, the heat sink 61 is evenly distributed in a parallel plate shape above the top cover 60, and the surface of the heat sink 61 is provided with microgrooves to further increase the heat dissipation area.

[0047] The container ventilation system is used to achieve heat dissipation.

[0048] Furthermore, in the above technical solution, thermally conductive adhesive is injected into the gap between the battery cell 20 and the housing 10.

[0049] The battery cells are fixedly connected to the casing to ensure good thermal contact. Thermally conductive silicone pads further enhance heat transfer, effectively dissipating the heat generated during battery operation. Heat sinks are installed on the top cover, increasing the heat dissipation area and allowing heat to be quickly dissipated, improving overall heat dissipation. Simultaneously, the arrangement of the heat sinks enhances airflow, promoting air cooling capabilities. Using partitions to tightly arrange multiple battery cells improves space utilization and reduces localized overheating caused by heat concentration. This also reduces the overall system complexity. Unlike traditional air-cooling solutions, this design considers the marine environment's requirements for excellent waterproof and moisture-proof capabilities, reducing the risk of circuit board corrosion and battery terminal rust, ensuring long-term stable operation of the battery pack. This design does not rely on complex liquid cooling pipes and pumps, reducing maintenance costs and related technical requirements, making maintenance more convenient.

[0050] Specifically, the principle of this invention is as follows: the battery cell and the housing are fixedly connected to ensure good thermal contact, and thermally conductive silicone pads further enhance heat transfer, effectively removing the heat generated by the battery during operation. Heat sinks are installed on the top cover, increasing the heat dissipation area and allowing heat to be quickly dissipated, improving overall heat dissipation. Simultaneously, the arrangement of the heat sinks enhances airflow, promoting air cooling capabilities. Using partitions to tightly arrange multiple battery cells improves space utilization and reduces localized overheating caused by heat concentration. This also reduces the overall system complexity. Unlike traditional air-cooling solutions, this design considers the marine environment's requirement for excellent waterproof and moisture-proof capabilities, reducing the risk of circuit board corrosion and battery terminal rust, ensuring long-term stable operation of the battery pack. This design does not rely on complex liquid cooling pipes and pumps, reducing maintenance costs and corresponding technical requirements, making maintenance more convenient.

[0051] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A high-efficiency heat dissipation marine battery pack, characterized in that, The device includes a housing, battery cells, partition plates, electrode plates, thermally conductive silicone pads, a top cover, and a handle. The housing is a hollow rectangular structure. Multiple partition plates are fixed to the bottom plate inside the housing. Multiple battery cells are tightly packed between the partition plates. The battery cells are fixedly connected to the bottom plate inside the housing. The top surface of the battery cells is laser-welded to the electrode plates. A thermally conductive silicone pad is placed above the electrode plates. The top cover is covered by the thermally conductive silicone pad and is fixedly connected to the housing by screws. The top cover includes multiple neatly arranged heat sinks. A handle is fixedly connected to the side wall of the housing.

2. The high-efficiency heat dissipation marine battery pack according to claim 1, characterized in that, The partition consists of a horizontal long plate and multiple short plates perpendicular to it. The horizontal long plate runs through the center line of the short plates and is fixedly connected to the short plates. The partition has a fence-like structure.

3. The marine battery pack with high-efficiency heat dissipation according to claim 2, characterized in that, A column is fixedly connected to the top surface of the intersection of the long and short plates of the partition.

4. A high-efficiency heat dissipation marine battery pack according to claim 3, characterized in that, The height of the separator is less than the height of the battery cell.

5. A high-efficiency heat dissipation marine battery pack according to claim 4, characterized in that, The overall height of the partition plate and the column is the same as the height of the battery cell.

6. A high-efficiency heat dissipation marine battery pack according to claim 5, characterized in that, The top surface of the thermally conductive silicone pad is higher than the top edge of the enclosure.

7. A high-efficiency heat dissipation marine battery pack according to claim 6, characterized in that, The top cover is a rectangular cover with an inner cavity, and its installation direction is such that the inner cavity faces downward, forming an inverted structure.

8. A high-efficiency heat dissipation marine battery pack according to claim 7, characterized in that, The top cover is made of aluminum alloy.

9. A high-efficiency heat dissipation marine battery pack according to claim 8, characterized in that, The heat sinks are evenly distributed in parallel plates above the top cover, and the surface of the heat sinks is provided with microgrooves to further increase the heat dissipation area.

10. A high-efficiency heat dissipation marine battery pack according to claim 9, characterized in that, Thermally conductive adhesive is filled into the gap between the battery cell and the casing.

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