Marine battery pack with anti-collision protection design

Abstract

The utility model discloses a marine battery pack with an anti-collision protection design. The marine battery pack comprises a box body assembly, a connector assembly and an anti-collision protection structure, the box body assembly comprises a box cover and a box body which are detachably connected, a first anti-collision part and a second anti-collision part are oppositely arranged on the two sides of the front end face of the box body, and an assembly installation inner groove is formed between the first anti-collision part and the second anti-collision part. The connector assembly is installed in the assembly installation inner groove, and the outer end face of the connector assembly is lower than the first anti-collision part and the second anti-collision part. The anti-collision protection structure comprises a box cover stainless steel plate, a box body stainless steel plate and an L-shaped anti-collision support, the L-shaped anti-collision support is welded to the edge of the bottom of the box body, the box cover stainless steel plate is detachably connected to the edge of the top of the box cover, and the box body stainless steel plate is detachably connected to the L-shaped anti-collision support; wherein a battery pack mounting area is arranged in the box body, a plurality of battery modules are arranged in order, and the battery pack mounting area is used for positioning and supporting the battery modules through a frame structure with a limiting part at the bottom.

Description

Technical Field

[0001] This utility model relates to the field of marine energy storage equipment technology, specifically to a marine battery pack with anti-collision protection design. Background Technology

[0002] With the development of marine electrification technology, marine battery packs, as core components of marine power or energy storage systems, directly affect the operational performance of ships due to their safety and reliability. During navigation, ships often face complex external environmental challenges: on the one hand, when ships are subjected to wave impacts, hull rolling, and accidental collisions, the battery packs must withstand high-frequency vibrations and external impact forces; on the other hand, potential impacts from foreign objects (such as hull components, loading and unloading tools, etc.) and bottom friction in ship operation scenarios can all threaten the structural integrity of the battery packs.

[0003] However, existing marine battery packs have the following shortcomings in their collision protection design:

[0004] Firstly, connector components (such as charging / discharging plugs and communication interfaces) are usually directly exposed on the surface of the enclosure, lacking specific protective structures. When the battery pack is bumped or accidentally scratched, the connectors are easily damaged due to direct force, leading to charging / discharging interruptions, communication failures, or even short circuit risks.

[0005] Secondly, traditional battery pack enclosures are mostly made of ordinary metal sheets, which have weak impact resistance at the top and bottom. When the top is hit by falling objects or the bottom rubs against the hull, the enclosure is prone to deformation, which may compress the internal battery modules and cause safety problems such as short circuits or thermal runaway.

[0006] Third, the battery module installation area lacks effective positioning and support structures. When the ship rocks, the battery modules are prone to displacement or collision, which may cause internal circuit breakage or module damage, affecting the overall lifespan of the battery pack.

[0007] Therefore, there is an urgent need for a marine battery pack with multiple anti-collision protections, hidden connector protection, and stable support for battery modules to improve its impact resistance and operational reliability in the complex marine environment. Utility Model Content

[0008] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a marine battery pack with anti-collision protection design, which solves the technical problems of exposed and easily damaged connectors, insufficient impact resistance at the top / bottom and unstable installation of battery modules in existing marine battery packs.

[0009] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0010] A marine battery pack with anti-collision protection design includes:

[0011] The enclosure assembly includes a detachably connected cover and an enclosure. The front face of the enclosure is provided with a first anti-collision part and a second anti-collision part on opposite sides, and an assembly mounting groove is formed between the first anti-collision part and the second anti-collision part.

[0012] A connector assembly is installed in the mounting groove of the assembly, and the outer end face of the connector assembly is lower than the first anti-collision part and the second anti-collision part;

[0013] The anti-collision protection structure includes a stainless steel cover plate, a stainless steel body plate, and an L-shaped anti-collision bracket. The L-shaped anti-collision bracket is welded to the bottom edge of the body plate. The stainless steel cover plate is detachably connected to the top edge of the cover plate. The stainless steel body plate is detachably connected to the L-shaped anti-collision bracket.

[0014] The housing includes a battery pack installation area, in which multiple battery modules are neatly arranged. The battery pack installation area is positioned and supported by a frame structure with a limiting part at the bottom.

[0015] Preferably, the bottom edge of the lid is provided with a first connecting part, and the top edge of the box body is provided with a second connecting part. The first connecting part and the second connecting part are detachably connected by a number of anti-loosening self-locking bolts.

[0016] Preferably, the stainless steel plate of the box cover and the stainless steel plate of the box body are fixed to the top edge of the box cover and the L-shaped anti-collision bracket by anti-loosening self-locking bolts. The anti-loosening self-locking bolts are evenly distributed along the four edges of the stainless steel plate of the box cover and the stainless steel plate of the box body, with at least two bolts on each side.

[0017] Preferably, the anti-loosening self-locking bolt has an elastic washer and a wedge block between the bolt and the nut;

[0018] When the bolt is tightened, the elastic washer and the wedge block interact to generate a self-locking force.

[0019] Preferably, the connector assembly includes: a power lock button, a buzzer, an activation button, a charging / discharging plug, a display screen, a pressure relief valve, a communication connector, a debugging connector, and a parallel connection connector;

[0020] The power lock button, the buzzer, the activation button, the charging / discharging plug, and the display screen are embedded in the upper half of the component mounting groove, while the pressure relief valve, the communication connector, the debugging connector, and the parallel connector are embedded in the lower half of the component mounting groove.

[0021] Preferably, the stainless steel plate of the box cover has a downwardly bent edge structure at the edge, the edge structure having a height of 10-20mm and fitting snugly against the top edge of the box cover.

[0022] Preferably, the lower surface of the stainless steel plate of the box cover is provided with crisscrossing reinforcing ribs, the thickness of the reinforcing ribs being 1-2mm and the height being 2-5mm.

[0023] Preferably, the stainless steel plate of the box body has an upwardly bent skirt structure at the edge, the skirt structure has a height of 8-15mm, and fits into the L-shaped anti-collision bracket.

[0024] Preferably, the L-shaped anti-collision bracket has several reinforcing ribs on its inner side, and the several reinforcing ribs are connected to the housing.

[0025] Preferably, the welding surface of the L-shaped anti-collision bracket is fixed to the bottom edge of the box body by a continuous weld, and the outer surface of the L-shaped anti-collision bracket is polished.

[0026] The outer surface roughness Ra of the L-shaped anti-collision bracket is ≤1.6μm.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] (1) Significantly improved connector protection performance:

[0029] The connector assembly is embedded in the groove between the first and second anti-collision parts on the front face of the housing, and its outer end face is lower than the outer surface of the anti-collision parts (e.g., 5-8mm lower). When the ship collides or is accidentally scraped, the protruding first and second anti-collision parts will bear the impact first, avoiding direct force on the connector, effectively preventing damage or short circuit risk to charging and discharging plugs, communication plugs, etc. caused by impact, and ensuring a stable connection between the battery pack and the ship's system;

[0030] (2) Multi-layered anti-collision structure enhances impact resistance:

[0031] The top is protected by a detachable stainless steel cover, with a downward-bent edge structure (10-20mm high) that fits tightly against the edge of the cover, improving the resistance to deformation (the thickness of the longitudinal and transverse reinforcing ribs on the lower surface is 1-2mm and the height is 2-5mm), and preventing rainwater or foreign objects from entering; the bottom is protected by an L-shaped anti-collision bracket (with inner reinforcing ribs connecting the box body) and a stainless steel plate of the box body (with an upward-bent skirt structure of 8-15mm high), covering the weld gap between the bracket and the box body, blocking the impact of water flow and mud at the bottom, while the outer surface of the L-shaped bracket is polished (roughness Ra≤1.6μm) to reduce the concentration of collision stress; (3) The anti-loosening connection design is adapted to the ship vibration environment:

[0032] The lid and body, as well as the stainless steel plates of the lid and body, are all connected using anti-loosening self-locking bolts (at least two evenly distributed on each side). Elastic washers and wedge blocks are placed between the bolts and nuts. After tightening, the preload of the elastic washers and the inclined friction of the wedge blocks work together to generate a self-locking force, effectively preventing bolt loosening caused by high-frequency vibrations of the ship, ensuring the reliability of the connections of each protective component, and avoiding protective failure due to structural loosening.

[0033] (4) Enhanced stability of battery module installation:

[0034] A frame structure (such as an aluminum alloy square tube mesh frame) is installed around the battery pack installation area inside the enclosure. The battery modules are precisely positioned and supported by slots or limiting bosses. When the ship is rocking, the frame structure can effectively limit the displacement or collision of battery modules, avoid internal wiring breakage or module damage, and extend the overall service life of the battery pack.

[0035] In summary, this utility model comprehensively improves the safety and reliability of marine battery packs in complex environments through designs such as hidden connector protection, multi-layer anti-collision structure, anti-loosening connection, and stable support for battery modules, meeting the ship's requirements for high impact resistance and high stability of energy storage equipment.

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0037] Figure 1 This is an exploded view of a marine battery pack with anti-collision protection design according to an embodiment of the present invention;

[0038] Figure 2 This is an overall view of a marine battery pack with anti-collision protection design according to an embodiment of the present invention.

[0039] Reference numerals: 1. Case cover; 11. First connecting part; 2. Case body; 21. Second connecting part; 22. First anti-collision part; 23. Second anti-collision part; 24. Component mounting groove; 25. Battery module; 26. Frame structure; 3. Connector assembly; 31. Power lock button; 32. Buzzer; 33. Activation button; 34. Charging / discharging plug; 35. Display screen; 36. Pressure relief valve; 37. Communication connector; 38. Debugging connector; 39. Parallel connection connector; 4. Stainless steel plate for case cover; 41. Edge banding structure; 5. Stainless steel plate for case body; 51. Skirt structure; 6. L-shaped anti-collision bracket; 61. Reinforcing rib. Detailed Implementation

[0040] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0041] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0042] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0043] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0044] This embodiment provides, for example Figure 1 , 2 The marine battery pack shown here with anti-collision protection design mainly includes three parts: housing assembly, connector assembly 3 and anti-collision protection structure. It is suitable for marine environments. The multiple anti-collision designs enhance the impact resistance of the battery pack, while ensuring the safety of the internal battery module 25 and connectors.

[0045] In one possible embodiment, the enclosure assembly includes a detachably connected cover 1 and enclosure 2. Wherein:

[0046] The bottom edge of the lid 1 is provided with a first connecting part 11 (e.g., a flange structure), and the top edge of the body 2 is provided with a second connecting part 21 (a flange structure that matches the first connecting part 11). The two are detachably connected by a number of anti-loosening self-locking bolts. Preferably, at least two anti-loosening self-locking bolts are provided on each side and are evenly distributed.

[0047] Anti-loosening self-locking bolts have an elastic washer (such as a wave spring washer) and a wedge block (a metal block with a beveled surface) between the bolt and the nut. When the bolt is tightened, the elastic washer is compressed to generate a preload, and the beveled surface of the wedge block fits against the bottom surface of the nut. Through the combined action of friction and elasticity, a self-locking force is formed to prevent the bolt from loosening due to ship vibration.

[0048] In one possible embodiment, a first anti-collision part 22 and a second anti-collision part 23 (both rigid structures convex outwards from the front face of the housing 2, made of aluminum alloy or stainless steel) are symmetrically arranged on both sides of the front face of the housing 2, forming a component mounting groove 24 between them. The connector assembly 3 is embedded in the component mounting groove 24, and its outer end face is lower than the outer surface of the first anti-collision part 22 and the second anti-collision part 23 (e.g., 5-8mm lower). The convex design of the anti-collision part preferentially absorbs the impact of collision, avoiding direct damage to the connector.

[0049] The specific layout of connector component 3 is as follows:

[0050] Upper half area (near the top of the enclosure 2): includes a power lock button 31 (for controlling the battery pack's power-on status), a buzzer 32 (for abnormal alarms), an activation button 33 (to wake up from sleep mode), a charging / discharging plug 34 (for connecting to external charging / discharging equipment), and a display screen 35 (for displaying parameters such as voltage and power).

[0051] The lower half of the enclosure (near the bottom of the enclosure) contains a pressure relief valve 36 (to release internal pressure in case of battery thermal runaway), a communication connector 37 (to connect to the ship's control system), a commissioning connector 38 (to connect to the commissioning equipment during maintenance), and a parallel connector 39 (for parallel expansion of multiple battery packs).

[0052] In one possible embodiment, the anti-collision protection structure includes a stainless steel cover plate 4, a stainless steel body plate 5, and an L-shaped anti-collision bracket 6, which improves the impact resistance of the battery pack through multi-layer protection.

[0053] Among them, the L-shaped anti-collision bracket 6 is made of stainless steel or high-strength aluminum alloy and is welded to the bottom edge of the box 2 (the welding surface is fixed by continuous weld seam to ensure connection strength); several reinforcing ribs 61 (such as triangular bosses) are set on the inner side, and the reinforcing ribs 61 are welded to the bottom side of the box 2 to further improve the connection rigidity between the L-shaped anti-collision bracket 6 and the box 2.

[0054] The outer surface is polished to a roughness Ra≤1.6μm (smooth surface, reducing stress concentration during collision).

[0055] Among them, the stainless steel plate 4 of the box cover is detachably connected to the top edge of the box cover 1 (fixed by anti-loosening self-locking bolts, with at least 2 bolts on each side, evenly distributed);

[0056] The edge is provided with a downwardly bent edge structure 41 (height 10-20mm), and the edge structure 41 is tightly fitted to the top edge of the lid 1 (for example, by pressing with anti-loosening self-locking bolts) to prevent rainwater or foreign objects from entering from the edge gaps.

[0057] The lower surface is reinforced with crisscrossing ribs (1-2mm thick, 2-5mm high) to enhance the stainless steel plate's resistance to deformation and prevent dents when the top is impacted.

[0058] Among them, the stainless steel plate 5 of the box body is detachably connected to the outside of the L-shaped anti-collision bracket 6 (fixed by anti-loosening self-locking bolts, and the bolt distribution is consistent with the stainless steel plate 4 of the box cover).

[0059] An upward-curving skirt structure 51 (8-15mm high) is provided at the edge. The skirt structure 51 fits snugly against the outer side of the L-shaped anti-collision bracket 6, covering the weld gap between the L-shaped anti-collision bracket 6 and the box body 2. The skirt structure 51 can effectively block water, mud, sand and other foreign objects from the bottom, preventing them from directly impacting the bottom of the box body 2 or entering the interior of the box body 2. At the same time, it also enhances the structural strength and stability of the stainless steel plate 5 of the box body itself.

[0060] In one possible embodiment, the interior of the housing 2 includes a battery pack mounting area where multiple battery modules 25 (e.g., lithium-ion battery modules) are neatly arranged. A frame structure 26 (e.g., a mesh frame welded from aluminum alloy square tubing) surrounds the battery pack mounting area. The frame structure 26 is fixed to the inner wall of the housing 2 with bolts, and its bottom has slots or limiting protrusions that match the size of the battery modules 25, achieving precise positioning and stable support for the battery modules 25 and preventing displacement or collision of the battery modules 25 when the ship is rocking.

[0061] This embodiment achieves excellent collision avoidance performance through the following design:

[0062] The connector component 3 is hidden in the component mounting recess 24, and the first anti-collision part 22 and the second anti-collision part 23 take priority in bearing the collision.

[0063] The stainless steel plate 4 for the lid, the stainless steel plate 5 for the body, and the L-shaped anti-collision bracket 6 form a multi-layer protection of "top-bottom-side". Combined with reinforcing ribs and edge / skirt structure, it significantly improves the impact resistance.

[0064] The anti-loosening self-locking bolts and frame structure 26 ensure the reliability of the connection between various components and adapt to the high-frequency vibration environment of ships;

[0065] The polished L-shaped bracket and smooth stainless steel plate structure reduce stress concentration during collisions and extend the battery pack's lifespan.

[0066] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A marine battery pack with anti-collision protection design, characterized in that, include: The enclosure assembly includes a detachably connected cover and an enclosure. The front face of the enclosure is provided with a first anti-collision part and a second anti-collision part on opposite sides, and an assembly mounting groove is formed between the first anti-collision part and the second anti-collision part. A connector assembly is installed in the mounting groove of the assembly, and the outer end face of the connector assembly is lower than the first anti-collision part and the second anti-collision part; The anti-collision protection structure includes a stainless steel cover plate, a stainless steel body plate, and an L-shaped anti-collision bracket. The L-shaped anti-collision bracket is welded to the bottom edge of the body plate. The stainless steel cover plate is detachably connected to the top edge of the cover plate. The stainless steel body plate is detachably connected to the L-shaped anti-collision bracket. The housing includes a battery pack installation area, in which multiple battery modules are neatly arranged. The battery pack installation area is positioned and supported by a frame structure with a limiting part at the bottom.

2. The marine battery pack with anti-collision protection design according to claim 1, characterized in that, The bottom edge of the box cover is provided with a first connecting part, and the top edge of the box body is provided with a second connecting part. The first connecting part and the second connecting part are detachably connected by a number of anti-loosening self-locking bolts.

3. The marine battery pack with anti-collision protection design according to claim 1, characterized in that, The stainless steel plate of the box cover and the stainless steel plate of the box body are fixed to the top edge of the box cover and the L-shaped anti-collision bracket by anti-loosening self-locking bolts. The anti-loosening self-locking bolts are evenly distributed along the four edges of the stainless steel plate of the box cover and the stainless steel plate of the box body, with at least 2 bolts on each side.

4. The marine battery pack with anti-collision protection design according to claim 2 or 3, characterized in that, The anti-loosening self-locking bolt has an elastic washer and a wedge block between the bolt and the nut; When the bolt is tightened, the elastic washer and the wedge block interact to generate a self-locking force.

5. The marine battery pack with anti-collision protection design according to claim 1, characterized in that, The connector assembly includes: a power lock button, a buzzer, an activation button, a charging / discharging plug, a display screen, a pressure relief valve, a communication connector, a debugging connector, and a parallel connection connector; The power lock button, the buzzer, the activation button, the charging / discharging plug, and the display screen are embedded in the upper half of the component mounting groove, while the pressure relief valve, the communication connector, the debugging connector, and the parallel connector are embedded in the lower half of the component mounting groove.

6. The marine battery pack with anti-collision protection design according to claim 1, characterized in that, The stainless steel plate of the box cover has a downward-bent edge structure at the edge, the edge structure is 10-20mm high and fits against the top edge of the box cover.

7. The marine battery pack with anti-collision protection design according to claim 1, characterized in that, The lower surface of the stainless steel plate of the box cover is provided with crisscrossing reinforcing ribs, the thickness of which is 1-2mm and the height is 2-5mm.

8. The marine battery pack with anti-collision protection design according to claim 1, characterized in that, The stainless steel plate of the box body has an upwardly bent skirt structure at the edge, the skirt structure is 8-15mm high and fits into the L-shaped anti-collision bracket.

9. The marine battery pack with anti-collision protection design according to claim 1, characterized in that, The L-shaped anti-collision bracket has several reinforcing ribs on its inner side, and these reinforcing ribs are connected to the housing.

10. The marine battery pack with anti-collision protection design according to claim 1, characterized in that, The welding surface of the L-shaped anti-collision bracket is fixed to the bottom edge of the box body by a continuous weld. The outer surface of the L-shaped anti-collision bracket is polished. The outer surface roughness Ra of the L-shaped anti-collision bracket is ≤1.6μm.

Images