Modularized battery box for electric ship

Abstract

The invention provides a modularized battery box for an electric ship, which relates to the technical field of electric ships, and is characterized in that the modularized battery box comprises an upper frame, the upper side of the upper frame is fixedly provided with a cooling top cover, the lower part of the upper frame is fixedly provided with a plurality of battery modules, and the battery modules are mutually stacked; a base is detachably and fixedly arranged on the lower portion of the battery module located on the lowermost side, the battery module located on the uppermost side is detachably and fixedly connected with the upper frame, the battery module located on the lowermost side is detachably and fixedly connected with the base, and the battery modules are detachably and fixedly connected. The high-strength aluminum alloy frame is matched with the stacking structure and the silicon rubber shock pad to achieve impact attenuation, and ship vibration and impact are effectively resisted; the modular architecture is adopted, rapid installation and maintenance are achieved, the core problems of vibration impact, heat dissipation efficiency, installation adaptation and the like are comprehensively solved, and the system safety, maintenance convenience and environmental adaptability are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric boats, and specifically to a modular battery box for electric boats. Background Art

[0002] With the rapid development of ship electrification, the marine battery system, as the core power source, its performance, safety, and maintenance convenience have become key indicators. However, there are still many deficiencies in the existing technologies, making it difficult to meet the high requirements under the complex working conditions of modern ships.

[0003] Insufficient modular design: Traditional marine battery systems mostly adopt an integrated design, where the battery pack is fixedly connected to the box body, lacking a modular architecture. This design makes installation, disassembly, and expansion extremely inconvenient. Especially in scenarios where the ship space is limited or rapid repair is required, it is difficult to adapt to the flexible configuration needs. Some modularization attempts still have problems such as complex connections and poor sealing, affecting the system stability.

[0004] Low installation and maintenance efficiency: Existing battery modules usually adopt welding or simple bolt fixation. Installation requires professional operation, and during maintenance, the overall structure needs to be disassembled, resulting in high work intensity. For example, the maintenance of valve-regulated lead-acid batteries requires regular equalizing charging and capacity testing. However, the lack of modular design leads to a long time-consuming for single maintenance, and it is difficult to accurately locate the faulty module, increasing the operation and maintenance costs. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the existing technologies, the present invention provides a modular battery box for electric boats, which effectively solves the problems of extremely inconvenient installation, disassembly, and expansion, and vibration and impact through a high-strength aluminum alloy frame combined with a stacking structure and modular design.

[0006] The present invention provides a modular battery box for electric boats, which is characterized in that it includes an upper frame. A cooling top cover is fixedly arranged on the upper side of the upper frame. Several battery modules are fixedly arranged at the lower part of the upper frame. The battery modules are stacked on top of each other. A base is detachably fixedly arranged at the lower part of the lowermost battery module. The uppermost battery module is detachably fixedly connected to the upper frame. The lowermost battery module is detachably fixedly connected to the base. The battery modules are detachably fixedly connected to each other.

[0007] Preferred technical solution: The battery module includes an outer frame. A horizontal connecting frame is horizontally arranged in the middle of the outer frame, and a vertical connecting frame is vertically arranged in the middle of the outer frame. The middle parts of the horizontal connecting frame and the vertical connecting frame are perpendicularly crossed, and a plurality of partition slots are arranged inside the outer frame. Battery blocks are arranged in the partition slots. One end of the battery block is erected on the horizontal connecting frame, and the other end of the battery block is fixedly connected to the upper part of the outer frame. An end baffle is fixedly arranged on the outer frame at a position close to the end of the battery block. The upper part of the battery block located below extends to the inside of the outer frame of the battery module located above.

[0008] Preferred technical solution: A plurality of fixed connecting ears are fixedly arranged on the side part of the outer frame. Fixed connecting holes are arranged on the fixed connecting ears. The outer frames are fixedly connected together through the fixed connecting holes and fastening bolts.

[0009] Preferred technical solution: The horizontal connecting frame includes an end bearing frame fixedly arranged horizontally in the middle of the outer frame. Loading surfaces are arranged on the upper parts of both sides of the bottom bearing frame. A groove is arranged on the upper side of the middle part of the bottom bearing frame between the loading surfaces. A partition frame is fixedly arranged inside the groove. A boss is fixedly arranged at one end of the battery block close to the partition frame. The boss is arranged on the upper side of the loading surface and the outer side abuts against the outer side of the partition frame.

[0010] Preferred technical solution: The bottom bearing frame is made of aluminum alloy profile.

[0011] Preferred technical solution: A connecting plate frame is fixedly arranged on the outer side of one end of the battery block close to the end baffle. The battery block is fixedly connected to the end of the outer frame through the connecting plate frame. The end baffle is located on the outer side of the connecting plate frame.

[0012] Preferred technical solution: A plurality of card slots are arranged on the end baffle. A plurality of card blocks are arranged on the outer side of the connecting plate frame. The card blocks are respectively clamped inside the card slots.

[0013] Preferred technical solution: An empty slot is arranged on the inner side of the outer frame at one end of the battery block. A connecting block is fixedly arranged inside the empty slot. A connecting hole is fixedly arranged on the connecting block. After a plurality of outer frames are stacked, a plurality of empty slots are combined to form a closed chamber. The control component of the battery module is fixedly connected inside the chamber through the connecting block.

[0014] Preferred technical solution: A gap is arranged between the battery blocks of different battery modules among the battery modules. A shock-absorbing pad is fixedly arranged inside the gap.

[0015] Preferred technical solution: A cooling water pipe is arranged inside the top cover, and the cooling water pipe is arranged in an S shape inside the top cover. Both ends of the cooling water pipe extend to the end sides of the top cover and are provided with a water inlet and a water outlet respectively.

[0016] Technical effects and advantages of the present invention:

[0017] The present invention uses a high-strength aluminum alloy frame, combined with a stacking structure and a silicone rubber shock pad, to achieve more than 80% impact attenuation. It is combined with double-end clamping fixation (precision 0.05 mm) and truss-type support (bending resistance 120 MPa) to effectively resist ship vibration and impact; the modular architecture enables rapid installation and maintenance, comprehensively solves core problems such as vibration and impact, heat dissipation efficiency, and installation adaptation, and significantly improves system safety, maintenance convenience, and environmental adaptability. Description of the drawings

[0018] Figure 1 It is a schematic structural diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the stacking structure of the battery module of the present invention;

[0020] Figure 3 It is a schematic diagram of the cooperation structure between the battery module and the shock pad of the present invention;

[0021] Figure 4 It is a schematic diagram of the battery module structure of the present invention;

[0022] Figure 5 It is of the present invention Figure 4 Schematic diagram of the enlarged structure of part A;

[0023] Figure 6 It is of the present invention Figure 4 Schematic diagram of the enlarged structure of part B;

[0024] As shown in the figure: 1 - upper frame; 2 - cooling top cover; 3 - battery module; 4 - base; 5 - shock pad; 21 - water inlet; 22 - water outlet; 31 - outer frame; 32 - horizontal connecting frame; 33 - vertical connecting frame; 34 - partition groove; 35 - battery block; 36 - end baffle; 37 - fixed connecting ear; 38 - fixed connecting hole; 39 - clamping block; 310 - empty groove; 311 - connecting block; 312 - connecting hole; 313 - connecting plate frame; 314 - clamping groove; 321 - end bearing frame; 322 - bearing surface; 323 - groove; 324 - partition frame; 325 - boss. Detailed implementation manners

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] As Figures 1 to 6 shown

[0027] An electric marine modular battery box, characterized in that it includes an upper frame 1, a cooling top cover 2 is fixedly arranged on the upper side of the upper frame 1, several battery modules 3 are fixedly arranged at the lower part of the upper frame 1, the battery modules 3 are stacked on top of each other, a base 4 is detachably and fixedly arranged at the lower part of the battery module 3 at the lowermost side, the battery module 3 at the uppermost side is detachably and fixedly connected to the upper frame 1, the battery module 3 at the lowermost side is detachably and fixedly connected to the base 4, and the battery modules 3 are detachably and fixedly connected to each other. The upper frame 1 is used as the main load-bearing structure, is cast from high-strength aluminum alloy (such as 6061-T6), and is surface anodized, with a corrosion resistance grade reaching C5-M. The cooling top cover 2 integrates an S-shaped water cooling channel, and the water inlet / outlet adopts a quick-connect joint design, supporting quick disassembly and assembly within 30 seconds, which is convenient for maintenance. The battery modules 3 are stacked and adopt a "sandwich" stacking structure. Vibration is isolated between adjacent modules through shock pads (made of silicone rubber, Shore hardness 50A). Experimental data shows that more than 80% of the impact load can be attenuated. The base is designed with adjustable feet (thread adjustment range ±20mm) to adapt to different deck inclination angles.

[0028] The battery module 3 includes an outer frame 31, a horizontal connecting frame 32 is horizontally arranged in the middle of the outer frame 31, a vertical connecting frame 33 is vertically arranged in the middle of the outer frame 31, the middle parts of the horizontal connecting frame 32 and the vertical connecting frame 33 are perpendicularly crossed and arranged, and a plurality of partition slots 34 are arranged inside the outer frame 31. Battery blocks 35 are arranged in the partition slots 34. One end of the battery block 35 is erected on the horizontal connecting frame 32, the other end of the battery block 35 is fixedly connected to the outer frame 31, and an end baffle 36 is fixedly arranged on the outer frame 31 and close to the end of the battery block 35. The upper part of the battery block 35 located below extends to the inside of the outer frame 31 of the battery module 3 located above. The horizontal connecting frame 32 adopts a truss structure, is extruded from aluminum alloy profile (6082-T6), and the internal honeycomb-shaped reinforcing ribs enable the bending strength to reach 120 MPa. The friction coefficient μ of the bearing surface 322 ≥ 0.45, and together with the limiting boss of the partition frame 324, it ensures that the lateral movement of the battery block is ≤ 0.2 mm.

[0029] A plurality of fixed connection ears 37 are fixedly arranged on the side of the outer frame 31. Fixed connection holes 38 are arranged on the fixed connection ears 37. The outer frames 31 are fixedly connected together through the fixed connection holes 38 and fastening bolts. The fixed connection ears 37 adopt a self-aligning design, with a bolt hole position tolerance of ±0.1 mm, and are assembled quickly with the aid of a torque wrench (preset torque 12 N·m).

[0030] The horizontal connection frame 32 includes an end bearing frame 321 fixedly arranged horizontally in the middle of the outer frame 31. Bearing surfaces 322 are arranged on the upper parts on both sides of the bottom bearing frame 321. A groove 323 is arranged between the bearing surfaces 322 and on the upper side in the middle of the bottom bearing frame 321. A partition frame 324 is fixedly arranged inside the groove 323. A boss 325 is fixedly arranged at one end of the battery block 35 close to the partition frame 324. The boss 325 is arranged on the upper side of the bearing surface 322 and its outside abuts against the outside of the partition frame 324.

[0031] The bottom bearing frame 321 is made of aluminum alloy profile.

[0032] A connecting plate frame 313 is fixedly arranged on the outside of one end of the battery block 35 close to the end baffle 36. The battery block 35 is fixedly connected to the end of the outer frame 31 through the connecting plate frame 313. The end baffle 36 is located outside the connecting plate frame 313.

[0033] A plurality of card slots 314 are arranged on the end baffle 36. A plurality of clamping blocks 39 are arranged on the outside of the connecting plate frame 313. The clamping blocks 39 are respectively clamped inside the card slots 314. The battery block 35 is connected to the end baffle 36 through the clamping blocks 39, with a clamping accuracy of 0.05 mm, and can withstand an impact load of 20 g without loosening.

[0034] An empty slot 310 is arranged on the inner side of the outer frame 31 and at one end of the battery block 35. A connecting block 311 is fixedly arranged inside the empty slot 310. A connecting hole 312 is fixedly arranged on the connecting block 311. After a plurality of outer frames 31 are stacked, a plurality of empty slots 310 are combined to form a closed chamber. The control components of the battery module 3 are fixedly connected inside the chamber through the connecting blocks 311.

[0035] There is a gap between the battery blocks 31 of different battery modules 3 among the battery modules 3. A shock-absorbing pad 5 is fixedly arranged in the gap.

[0036] Cooling water pipes are arranged on the inner side of the cooling top cover 2. The cooling water pipes are arranged in an S shape inside the cooling top cover 2. The two ends of the cooling water pipes respectively extend to the end sides of the cooling top cover 2 to be provided with a water inlet 21 and a water outlet 22. The cross-section of the water channel is optimized to be trapezoidal (upper base 3 mm, lower base 5 mm, height 4 mm). Compared with a circular pipe, the heat exchange area is increased by 30%, and the water flow resistance is reduced by 15%.

[0037] The modular battery box for electric boats in the present invention achieves rapid maintenance through a detachable "sandwich" stacking structure. Silicone rubber shock pads (attenuating 80% of the impact) are used between the modules in combination with self-aligning bolt groups (tolerance ±0.1 mm) to ensure stable connection; the battery blocks adopt a double-end fixed design (clamping accuracy 0.05 mm, resisting 20 g of impact), with an internally integrated truss support (bending resistance 120 MPa) and trapezoidal water-cooling channels (heat transfer increased by 30%, pressure drop decreased by 15%). Adjustable feet (±20 mm compensation) are used to adapt to complex hull environments, effectively solving core problems such as marine corrosion, vibration and shock, heat dissipation efficiency, and installation adaptation.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An electric marine modular battery box, characterized in that, It includes an upper frame (1), a cooling top cover (2) is fixedly arranged on the upper side of the upper frame (1), several battery modules (3) are fixedly arranged at the lower part of the upper frame (1), the battery modules (3) are stacked on top of each other, a base (4) is detachably and fixedly arranged at the lower part of the lowermost battery module (3), the uppermost battery module (3) is detachably and fixedly connected to the upper frame (1), the lowermost battery module (3) is detachably and fixedly connected to the base (4), and the battery modules (3) are detachably and fixedly connected to each other.

2. The modular battery box for electric boats according to claim 1, characterized in that, The battery module (3) includes an outer frame (31), a horizontal connecting frame (32) is horizontally arranged in the middle of the outer frame (31), a vertical connecting frame (33) is vertically arranged in the middle of the outer frame (31), the middle parts of the horizontal connecting frame (32) and the vertical connecting frame (33) are vertically and crosswise arranged and multiple partition slots (34) are arranged inside the outer frame (31), battery blocks (35) are arranged in the partition slots (34), one end of the battery block (35) is erected on the horizontal connecting frame (32), the other end of the battery block (35) is fixedly connected to the outer frame (31), and an end baffle (36) is fixedly arranged on the outer frame (31) and near the end of the battery block (35), and the upper part of the battery block (35) located below extends to the inside of the outer frame (31) of the battery module (3) located above.

3. The modular battery box for electric boats according to claim 2, characterized in that, A plurality of fixed connecting ears (37) are fixedly arranged on the side part of the outer frame (31), fixed connecting holes (38) are arranged on the fixed connecting ears (37), and the outer frames (31) are fixedly connected together through the fixed connecting holes (38) and fastening bolts.

4. The modular battery box for electric boats according to claim 2, characterized in that, The horizontal connecting frame (32) includes an end bearing frame (321) fixedly and horizontally arranged in the middle of the outer frame (31), bearing surfaces (322) are arranged on the upper parts of both sides of the bottom bearing frame (321), a groove (323) is arranged between the bearing surfaces (322) and on the upper side of the middle part of the bottom bearing frame (321), a partition frame (324) is fixedly arranged inside the groove (323), a boss (325) is fixedly arranged at one end of the battery block (35) close to the partition frame (324), and the boss (325) is arranged on the upper side of the bearing surface (322) and the outer side abuts against the outer side of the partition frame (324).

5. The modular battery box for an electric boat according to claim 4, characterized in that, The bottom bearing frame (321) is made of aluminum alloy profile.

6. The modular battery box for an electric boat according to claim 2, characterized in that, A connecting plate frame (313) is fixedly arranged on the outer side of one end of the battery block (35) close to the end baffle (36), the battery block (35) is fixedly connected to the end of the outer frame (31) through the connecting plate frame (313), and the end baffle (36) is located outside the connecting plate frame (313).

7. The modular battery box for electric boats according to claim 6, characterized in that, A plurality of card slots (314) are arranged on the end baffle (36), a plurality of card blocks (39) are arranged on the outer side of the connecting plate frame (313), and the card blocks (39) are respectively and correspondingly engaged inside the card slots (314).

8. The modular battery box for an electric boat according to claim 2, characterized in that, An empty groove (310) is provided inside the outer frame (31) and at one end of the battery block (35). A connection block (311) is fixedly arranged inside the empty groove (310). A connection hole (312) is fixedly arranged on the connection block (311). After a plurality of outer frames (31) are stacked, a plurality of empty grooves (310) are combined to form a closed chamber. A control component of the battery module (3) is fixedly connected inside the chamber through the connection block (311).

9. The modular battery box for an electric boat according to claim 8, characterized in that, A gap is provided between the battery blocks (31) of different battery modules (3) among the battery modules (3). A shock-absorbing pad (5) is fixedly arranged in the gap.

10. A modular battery box for an electric boat according to any one of claims 1-7, characterized in that, Cooling water pipes are arranged inside the cooling top cover (2). The cooling water pipes are arranged in an S shape inside the cooling top cover (2). Two ends of the cooling water pipes respectively extend to the end sides of the cooling top cover (2) to be provided with a water inlet (21) and a water outlet (22).

Images