Marine battery pack using a stack structure

Abstract

The application discloses a marine battery PACK using a stacking structure, which is used for improving the stacking efficiency of the battery and adapting to the marine environment. The application comprises a battery box, the battery box is used for placing a battery, and the battery box comprises an upper cover plate, a lower bottom plate and a box wall; the upper cover plate is fixedly connected with the lower bottom plate through the box wall; the upper cover plate is provided with a groove, and the lower bottom plate is provided with a protrusion, so that when the battery boxes are stacked, the groove of one battery box is matched with the protrusion of another battery box; a positioning pin is arranged on a diagonal of the upper cover plate, and a positioning hole is arranged on a diagonal of the lower bottom plate, so that when the battery boxes are stacked, the positioning pin of one battery box is matched with the positioning hole of another battery box; a first drain hole is arranged in the groove; the box wall is a hollow structure, a second drain hole is arranged on the box wall, the first drain hole and the second drain hole are communicated, and the first drain hole and the second drain hole are used for draining water accumulated in the groove.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a marine battery pack using a stacked structure. Background Technology

[0002] A battery pack is a battery system unit that combines multiple individual batteries through electrical connections and mechanical fixing, and is equipped with corresponding protection circuits, management systems, and casings. Battery packs are widely used in marine propulsion, new energy vehicles, energy storage, and other fields to provide stable power to equipment and are the core component for realizing energy storage and output.

[0003] In marine applications, as ships demand increased range and power performance, the capacity and power of a single battery pack are insufficient to meet actual needs. Therefore, it is necessary to expand capacity by stacking multiple battery packs. Current technology achieves battery pack stacking by adding fixed supports.

[0004] However, adding a mounting bracket requires more time and space for assembly, resulting in lower battery stacking efficiency. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a marine battery pack with a stacked structure, which improves battery stacking efficiency and adapts to the marine environment.

[0006] The technical solution provided in this application is described below:

[0007] This application provides a marine battery pack with a stacked structure, including: a battery box;

[0008] The battery box includes an upper cover, a lower base plate, and a box wall, and the battery box is used to hold batteries.

[0009] The upper cover plate is fixedly connected to the lower bottom plate through the box wall;

[0010] The upper cover plate is provided with a groove, and the lower bottom plate is provided with a protrusion, so that when the battery boxes are stacked, the groove of one battery box matches the protrusion of another battery box.

[0011] The upper cover plate is provided with a positioning pin at opposite corners, and the lower base plate is provided with a positioning hole at opposite corners, so that when the battery boxes are stacked, the positioning pin of one battery box is matched with the positioning hole of the other battery box.

[0012] A first drainage hole is provided in the groove;

[0013] The box wall is a hollow structure, and a second drainage hole is provided on the box wall. The first drainage hole and the second drainage hole are connected. The first drainage hole and the second drainage hole are used to drain the water accumulated in the groove.

[0014] Optionally, the groove is a rectangular annular groove and the protrusion is a rectangular annular protrusion, such that when the battery boxes are stacked, the groove of one battery box matches the protrusion of the other battery box.

[0015] Optionally, the enclosure wall includes a front wall, a rear wall, and side walls.

[0016] The two sides of the front wall are fixedly connected to the rear wall via the box side wall;

[0017] The side wall of the box has a hollow structure, and the bottom of the side wall of the box is provided with a second drainage hole;

[0018] The box has a first fixing hole on its side wall, located at the second drainage hole. The first fixing hole is used for stacking and fixing the hull.

[0019] Optionally, anti-collision silicone is provided at both ends of the front end wall to protect the front end wall.

[0020] Optionally, the upper cover plate is provided with a second fixing hole, which is opposite to the position of the first fixing hole, and the second fixing hole is used for stacking and fixing.

[0021] Optionally, the first fixing hole is connected to the second fixing hole or the hull via a first bolt.

[0022] Optionally, the stacked structure further includes battery box handles, which are symmetrically arranged on both sides of the box sidewall and are used for carrying the battery box.

[0023] Optionally, the battery box handle is fixed to the side wall of the box by a second bolt.

[0024] Optionally, the positioning pin is detachably connected to the upper cover plate.

[0025] Optionally, the groove and / or the protrusion are provided with a plurality of buffer protrusions, which are used to reduce collision friction loss between the groove and the protrusion.

[0026] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0027] 1. By positioning the battery pack with the positioning pin on the top cover of one battery pack and the positioning hole on the bottom plate of another battery pack, and then fitting the groove on the top cover of one battery pack with the protrusion on the bottom plate of another battery pack, the battery pack can be quickly stacked without the need for additional assembly equipment and assembly space, thereby improving battery stacking efficiency, stacking stability and space utilization.

[0028] 2. The first drainage hole in the groove, the hollow box wall, and the second drainage hole on the box wall are connected to form a drainage channel, which can drain the water accumulated in the groove, adapt to the humid and water-prone environment of the ship, and improve the service life of the battery box and battery in the ship environment. Attached Figure Description

[0029] Figure 1 A schematic diagram of a marine battery PACK with a stacked structure provided in this application;

[0030] Figure 2 A schematic diagram of a structure for stacking marine battery PACKs with the application stacking structure provided in this application;

[0031] Figure 3 Another schematic diagram of the stacking structure of the marine battery PACK provided in this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Battery box; 2. Top cover; 3. Bottom plate; 4. Box wall; 5. Battery box handle; 21. Groove; 22. Positioning pin; 23. First drainage hole; 24. Second fixing hole; 25. Buffer protrusion; 31. Protrusion; 32. Positioning hole; 41. Second drainage hole; 42. Front wall; 43. Rear wall; 44. Box side wall; 45. First fixing hole; 46. Anti-collision silicone; 47. First bolt; 51. Second bolt. Detailed Implementation

[0033] In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and other terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to describe the relative positional relationship between the components or parts and do not specifically limit the specific installation orientation of each component or part.

[0034] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0035] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0036] Furthermore, the structures, proportions, sizes, etc., drawn in the accompanying drawings of this application are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0037] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] See Figures 1 to 3 This application first provides an embodiment of a marine battery pack using a stacked structure, which includes:

[0039] Battery box 1;

[0040] Battery box 1 includes an upper cover plate 2, a lower bottom plate 3, and a box wall 4. Battery box 1 is used to hold batteries.

[0041] The upper cover plate 2 is fixedly connected to the lower bottom plate 3 through the box wall 4;

[0042] The upper cover plate 2 is provided with a groove 21, and the lower bottom plate 3 is provided with a protrusion 31, so that when the battery boxes 1 are stacked, the groove 21 of one battery box 1 matches the protrusion 31 of another battery box 1.

[0043] The upper cover plate 2 is provided with positioning pins 22 at opposite corners, and the lower base plate 3 is provided with positioning holes 32 at opposite corners, so that when the battery boxes 1 are stacked, the positioning pins 22 of one battery box 1 are matched with the positioning holes 32 of the other battery box 1.

[0044] A first drainage hole 23 is provided in the groove 21;

[0045] The box wall 4 is a hollow structure, and a second drainage hole 41 is provided on the box wall 4. The first drainage hole 23 is connected to the second drainage hole 41. The first drainage hole 23 and the second drainage hole 41 are used to drain the water accumulated in the groove 21.

[0046] Battery Box 1: Battery Box 1 is a structured enclosure for housing and protecting batteries, providing a sealed space to protect the internal batteries from external impacts, water splashes, dust, etc. Battery Box 1 uses its own structure to stack batteries and withstand battery loads and forces generated by ship movement, while also providing drainage. Battery Box 1 includes an upper cover plate 2, a lower base plate 3, and box walls 4. The following is a detailed description of each component:

[0047] Top cover plate 2: The top cover plate 2 is provided with a groove 21 and a positioning pin 22 at the diagonal. Both the groove 21 and the positioning pin 22 are used to realize the stacking of battery boxes 1. The groove 21 can be of various shapes, such as circular, rectangular or square, etc. The shape of the groove 21 needs to match the shape of the protrusion 31 on the lower floor 3 of another battery box 1 to ensure structural compatibility during stacking. At the same time, the groove 21 is also provided with a first drainage hole 23. Since the working environment of ships is humid and prone to water accumulation, the groove 21 is prone to water accumulation after stacking. The first drainage hole 23 can drain the water accumulated in the groove 21. There can be multiple first drainage holes 23 to promote drainage and avoid water retention from adversely affecting the battery box 1 or the battery.

[0048] Bottom plate 3: The bottom plate 3 is fixedly connected to the top cover plate 2 via the box wall 4, together forming a closed space to hold the internal batteries. The bottom plate 3 has a protrusion 31, the shape of which matches the groove 21 on the top cover plate 2 of the other battery box 1. For example, if the groove 21 is circular, the protrusion 31 is designed to be circular accordingly. During stacking, the engagement of the protrusion 31 and the groove 21 achieves structural positioning. Simultaneously, positioning holes 32 are provided at opposite corners of the bottom plate 3, which can engage with the positioning pins 22 on the top cover plate 2 of the other battery box 1, providing positioning during battery box 1 stacking and enabling rapid stacking.

[0049] Box wall 4: Box wall 4 connects the upper cover plate 2 and the lower bottom plate 3, and has a certain rigidity to withstand the weight when stacked. Box wall 4 is provided with a second drainage hole 41, and box wall 4 has a hollow structure, serving as a drainage channel between the first drainage hole 23 and the second drainage hole 41, which can drain the water accumulated in the groove 21 to the outside of the battery box 1, forming a complete drainage path to adapt to the water accumulation problem in the humid environment of the ship.

[0050] Working principle: When stacking battery boxes 1 using their own structures, initial positioning is achieved by precisely aligning the positioning pin 22 on the upper cover plate 2 of one battery box 1 with the positioning hole 32 on the lower base plate 3 of another battery box 1. Then, the groove 21 on the upper cover plate 2 of one battery box 1 engages with the protrusion 31 on the lower base plate 3 of the other battery box 1, completing the stacking assembly through the structural constraints of the groove 21 and the protrusion 31. When water accumulates in the groove 21, it flows through the first drain hole 23 into the hollow structure of the box wall 4, and then drains through the second drain hole 41, adapting to the drainage needs of a ship in a humid environment.

[0051] In this embodiment, the battery packs are positioned by the positioning pin 22 of the upper cover plate 2 in one battery pack 1 and the positioning hole 32 of the lower bottom plate 3 in another battery pack 1. Then, the groove 21 of the upper cover plate 2 in one battery pack 1 engages with the protrusion 31 of the lower bottom plate 3 in the other battery pack 1, enabling rapid battery pack stacking without additional assembly equipment or space, thus improving battery stacking efficiency, stacking stability, and space utilization. Simultaneously, the first drainage hole 23 of the groove 21, the hollow box wall 4, and the second drainage hole 41 on the box wall 4 are connected to form a drainage channel, allowing water to be drained from the groove 21. This adapts to the humid and water-prone environment of ships, improving the lifespan of the battery packs 1 and batteries in the marine environment.

[0052] In an optional embodiment, the groove 21 is a rectangular annular groove and the protrusion 31 is a rectangular annular protrusion, such that when the battery boxes 1 are stacked, the groove 21 of one battery box 1 is adapted to the protrusion 31 of another battery box 1.

[0053] In this embodiment, the groove 21 is a rectangular annular groove, and the protrusion 31 is a corresponding rectangular annular protrusion. The size and contour of the groove 21 and the protrusion 31 match. When multiple battery boxes 1 are stacked, the rectangular annular protrusion 31 of the lower bottom plate 3 of the upper battery box 1 can be embedded in the rectangular annular groove 21 of the upper cover plate 2 of the lower battery box 1. The annular structure achieves circumferential positioning, limiting the horizontal displacement of the stacked battery boxes 1, thereby improving the structural stability and space utilization of the stack.

[0054] In an optional embodiment, the housing wall 4 includes a front wall 42, a rear wall 43, and a housing side wall 44;

[0055] The front wall 42 is fixedly connected to the rear wall 43 on both sides of the box side wall 44;

[0056] The side wall 44 of the box has a hollow structure, and a second drainage hole 41 is provided at the bottom of the side wall 44.

[0057] A first fixing hole 45 is provided on the side wall 44 of the container and is located at the second drainage hole 41. The first fixing hole 45 is used for stacking and fixing the cabin.

[0058] In this embodiment, the side wall 44 of the box adopts a hollow structure. A second drainage hole 41 is provided at the bottom of the side wall 44. The second drainage hole 41 and the first drainage hole 23 in the groove 21 form a height difference, allowing accumulated water to flow out smoothly through the hollow cavity of the side wall 44. A first fixing hole 45 is provided at the location of the second drainage hole 41. By passing bolts or other fasteners through the first fixing hole 45, the stacked battery boxes 1 can be interlocked and fixed, or the bottom battery box 1 can be fixed to the cabin. The second drainage hole 41 provides operating space for the fasteners to pass through the first fixing hole 45.

[0059] In an optional embodiment, anti-collision silicone 46 is provided at both ends of the front end wall 42 to protect the front end wall 42.

[0060] In this embodiment, the anti-collision silicone 46 protrudes from the surface of the front wall 42. With its elastic buffering properties, the anti-collision silicone 46 can reduce the direct impact of the impact force generated by the ship's swaying or equipment collision during handling on the front wall 42, thereby protecting the connection terminals installed on the front wall 42 and preventing structural damage or component failure due to collision.

[0061] In an optional embodiment, the first fixing hole 45 is connected to the second fixing hole 24 or the cabin by a first bolt 47.

[0062] In an optional embodiment, the upper cover plate 2 is provided with a second fixing hole 24, which is opposite to the first fixing hole 45, and the second fixing hole 24 is used for stacking and fixing.

[0063] In this embodiment, when multiple battery boxes 1 are stacked, the second fixing hole 24 of the upper battery box 1 and the first fixing hole 45 of the lower battery box 1 can be aligned and locked by the first bolt 47, thereby longitudinally interlocking and fixing the stacked battery boxes 1. During stacking, the battery box 1 at the bottom can be fixed to the cabin by the bolt passing through the first fixing hole 45, further enhancing the overall stability of the stacked structure. Combined with the engagement of the groove 21 and the protrusion 31, and the positioning of the positioning pin 22 and the positioning hole 32, multiple fixing guarantees are formed to adapt to complex working conditions such as ship vibration and impact.

[0064] In an optional embodiment, the locating pin 22 is detachably connected to the upper cover plate 2.

[0065] In this embodiment, when the battery box 1 is on the top layer of the stack, the positioning pin 22 can be removed to prevent personnel from being scratched or equipment from being damaged due to the exposed positioning pin 22. During stacking assembly, the positioning pin 22 needs to be installed at the diagonal position of the upper cover plate 2 to cooperate with the positioning hole 32 of the lower bottom plate 3 of the lower battery box for positioning. The positioning pin 22 and the upper cover plate 2 adopt a detachable connection method, which not only achieves stacking positioning but also improves safety during use.

[0066] In an optional embodiment, the groove 21 and / or the protrusion 31 are provided with a plurality of buffer protrusions 25, which are used to reduce collision friction loss between the groove 21 and the protrusion 31.

[0067] In this embodiment, a plurality of buffer protrusions 25 made of elastic material are provided circumferentially along the inner edge of the groove 21. When the battery boxes 1 are stacked, the buffer protrusions 25 can contact the surface of the protrusions 31 before the inner wall of the groove 21, thereby reducing the impact force of the collision and reducing the relative friction loss, extending the service life of the battery boxes 1, so as to adapt to long-term stacking use in the vibration environment of the ship.

[0068] In an optional embodiment, the battery box handle 5 is fixed to the side wall 44 of the box by a second bolt 51.

[0069] In an optional embodiment, the stacked structure further includes battery box handles 5, which are symmetrically arranged on both sides of the box side wall 44 for carrying the battery box 1.

[0070] In this example, the battery box handle 5 is used to move the battery box 1. The two ends of the battery box handle 5 are fixedly connected to the side wall 44 of the box by bolts, facilitating replacement of the battery box handle 5 or its removal when not in use. Furthermore, the battery box handles 5 are symmetrically arranged on both sides of the side wall 44, which helps to distribute the weight of the battery box 1, avoid stress concentration, and thus ensure that the battery box handles 5 are not easily deformed or broken during use.

[0071] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A marine battery pack using a stacked structure, characterized in that, include: Battery box (1); The battery box (1) includes an upper cover plate (2), a lower bottom plate (3) and a box wall (4), and the battery box (1) is used to place batteries; The upper cover plate (2) is fixedly connected to the lower bottom plate (3) through the box wall (4); The upper cover plate (2) is provided with a groove (21), and the lower bottom plate (3) is provided with a protrusion (31), so that when the battery boxes (1) are stacked, the groove (21) of one battery box (1) is adapted to the protrusion (31) of another battery box (1); The upper cover plate (2) is provided with a positioning pin (22) at the opposite corner, and the lower base plate (3) is provided with a positioning hole (32) at the opposite corner, so that when the battery boxes (1) are stacked, the positioning pin (22) of one battery box (1) is matched with the positioning hole (32) of the other battery box (1). A first drainage hole (23) is provided in the groove (21); The box wall (4) is a hollow structure, and a second drainage hole (41) is provided on the box wall (4). The first drainage hole (23) is connected to the second drainage hole (41). The first drainage hole (23) and the second drainage hole (41) are used to drain the water accumulated in the groove (21).

2. The marine battery pack according to claim 1, characterized in that, The groove (21) is a rectangular annular groove, and the protrusion (31) is a rectangular annular protrusion, so that when the battery boxes (1) are stacked, the groove (21) of one battery box (1) is adapted to the protrusion (31) of the other battery box (1).

3. The marine battery pack according to claim 1, characterized in that, The box wall (4) includes a front wall (42), a rear wall (43), and a box side wall (44). The front wall (42) is fixedly connected to the rear wall (43) on both sides through the box side wall (44); The side wall (44) of the box is a hollow structure, and the bottom of the side wall (44) of the box is provided with a second drainage hole (41). The box sidewall (44) is provided with a first fixing hole (45) located at the second drainage hole (41). The first fixing hole (45) is used for stacking and fixing the cabin.

4. The marine battery pack according to claim 3, characterized in that, The front end wall (42) is provided with anti-collision silicone (46) at both ends, and the anti-collision silicone (46) is used to protect the front end wall (42).

5. The marine battery pack according to claim 3, characterized in that, The upper cover plate (2) is provided with a second fixing hole (24), which is opposite to the first fixing hole (45). The second fixing hole (24) is used for stacking and fixing.

6. The marine battery pack according to claim 5, characterized in that, The first fixing hole (45) is connected to the second fixing hole (24) or the cabin by the first bolt (47).

7. The marine battery pack according to claim 3, characterized in that, It also includes a battery box handle (5), which is symmetrically arranged on both sides of the side wall (44) of the box, and is used to carry the battery box (1).

8. The marine battery pack according to claim 7, characterized in that, The battery box handle (5) is fixed to the side wall (44) of the box by a second bolt (51).

9. The marine battery pack according to any one of claims 1-8, characterized in that, The positioning pin (22) is detachably connected to the upper cover plate (2).

10. The marine battery pack according to any one of claims 1-8, characterized in that, The groove (21) and / or the protrusion (31) are provided with a plurality of buffer protrusions (25), which are used to reduce the collision friction loss between the groove (21) and the protrusion (31).

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