A sealing structure for a ship battery pack

Abstract

The utility model belongs to a ship battery pack sealing structure in the technical field of ship battery systems. The battery pack comprises an upper cover (1), a lower cover (2), and a front cover (3). The front of the upper cover (1) is an upper cover front opening, and the front of the lower cover (2) is a lower cover front opening. A sealing surface (5) is arranged along a circumference of the side surface (4) of the front cover (3). A step portion (6) is formed between the sealing surface (5) and the side surface (4). A recessed constriction portion (7) is arranged on the step portion (6). A plurality of waterproof pressure grooves (8) are arranged along a circumference of the sealing surface (5). The ship battery pack sealing structure described in the utility model has a simple structure, improves the sealing performance of the battery pack, effectively prevents water intrusion, and thus improves the working performance and service life of the battery pack.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship battery systems, and more specifically, relates to a ship battery pack sealing structure. Background Art

[0002] The mainstream battery packs used in marine battery systems currently on the market primarily utilize traditional air heat exchange to dissipate heat to ensure the normal operation of the battery cell modules within the battery pack. Due to the limitations of the heat exchange method, the main structure of the battery pack's outer casing can only withstand general environmental dust intrusion and splashing water intrusion, and cannot provide reliable resistance in marine environments. Due to the current general marine battery pack's limited environmental resistance, it can only prevent general dust intrusion and minor splashing water intrusion. The resulting risks are as follows: Over time, the amount of dust in the battery pack will gradually increase, causing the internal breathable membrane to clog, affecting air convection heat exchange, and the heat dissipation efficiency will gradually decrease, seriously affecting the battery pack's operating performance and service life.

[0003] The prior art includes a technology titled "Waterproof Battery Pack" and publication numbered "CN202094189U." This technology discloses a waterproof battery pack comprising an upper cover and a lower shell. The upper cover has a manual air release valve mounting hole and a power cable through-hole at the top. The lower shell has a raised structure around its upper end and a groove around its lower end that mates with the raised structure. These grooves and raised structures allow the upper and lower shells to snap together. A raised structure is also provided at the bottom of the lower shell. This waterproof battery pack significantly enhances the battery pack's sealing performance by tightly snapping the upper cover and lower shell together through the mating grooves and raised structures, and then securing the snapping portion with a stainless steel clamp.

[0004] However, this technology does not involve the technical problems and technical solutions of the present application. Utility Model Content

[0005] The technical problem to be solved by the present invention is: in view of the deficiencies in the existing technology, a ship battery pack sealing structure is provided which has a simple structure, effectively improves the sealing performance of the battery pack, effectively prevents water intrusion, and thus improves the working performance and service life of the battery pack.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0007] The utility model is a sealing structure for a battery pack of a ship. The battery pack comprises an upper cover, a lower cover and a front cover. The front portion of the upper cover is an upper cover front opening, the front portion of the lower cover is a lower cover front opening, a sealing surface is provided along a circumference of the side surface of the front cover, a step portion is formed between the sealing surface and the side surface, a recessed necking portion is provided on the step portion, and a plurality of waterproof pressure grooves are provided along a circumference of the sealing surface.

[0008] The lower part of the upper cover is provided with an upper cover rear end folding edge, an upper cover front side folding edge, and an upper cover rear side folding edge, and the upper cover rear end folding edge, the upper cover front side folding edge, and the upper cover rear side folding edge are connected to form a U-shaped upper cover folding edge; the lower cover is provided with a lower cover rear end folding edge, a lower cover front side folding edge, and a lower cover rear side folding edge, and the lower cover rear end folding edge, the lower cover front side folding edge, and the lower cover rear side folding edge are connected to form a U-shaped lower cover folding edge.

[0009] The upper cover folding edge is provided with upper cover connecting holes at intervals, and the lower cover folding edge is provided with lower cover connecting screw holes at intervals. Each connecting bolt passes through an upper cover connecting hole and is screwed and connected with a corresponding lower cover connecting screw hole.

[0010] An upper battery module and a lower battery module are arranged in the battery pack, and a liquid cooling plate is arranged between the upper battery module and the lower battery module.

[0011] An upper bent edge is provided on the outer side of the lower cover fold, a waterproof strip is provided on the lower cover fold, and multiple bolt waterproof rings are provided on the waterproof strip. After the waterproof strip is provided on the lower cover fold, each bolt waterproof ring is located above a corresponding lower cover connecting screw hole.

[0012] Each waterproof pressure groove of the sealing surface is respectively covered with a waterproof ring.

[0013] The sealing surface is provided with a plurality of screw holes at intervals along a circumference thereof, a plurality of upper cover openings are provided at the front end of the upper cover, and a plurality of lower cover openings are provided at the front end of the lower cover.

[0014] When the front cover is connected to the upper cover and the lower cover, the sealing surface of the front cover is clamped on the front inner wall of the upper cover and the front inner wall of the lower cover, and the front end of the upper cover and the front end of the lower cover are configured to be clamped in the necking portion.

[0015] When the front cover is connected to the upper cover and the lower cover, each screw passes through an opening of the upper cover or the lower cover and is screwed and connected with a corresponding screw hole on the sealing surface.

[0016] The liquid cooling plate is provided with a liquid cooling plate water inlet pipe port and a liquid cooling plate water inlet pipe port.

[0017] The technical solution of this utility model is adopted, and the working principle and beneficial effects are as follows:

[0018] The ship battery pack sealing structure described in the present invention is constructed by dividing the battery pack into an upper cover, a lower cover, and a front cover. The structures of the upper, lower, and front covers are then improved. Specifically, the front portion of the upper cover is an upper cover front opening, and the front portion of the lower cover is a lower cover front opening. After the upper and lower covers are fixedly connected, the upper and lower cover front openings form an annular structure. The side surface of the front cover is provided with a sealing surface along its perimeter, a step is formed between the sealing surface and the side surface, and a recessed necking portion is provided on the step. The sealing surface is provided with multiple waterproof pressure grooves along its perimeter. In this way, when the front cover is connected to the upper cover and the lower cover, the sealing surface of the front cover is pushed into the annular structure formed by the front opening of the upper cover and the front opening of the lower cover, and the front ends of the upper cover and the lower cover are clamped into the constricted portion. At the same time, a waterproof ring is installed in the waterproof pressure groove. The waterproof ring acts between the sealing surface and the inner wall of the front end of the upper cover and the inner wall of the front end of the lower cover to form a reliable seal. The constricted portion provided on the step is used to limit the position of the front end of the upper cover and the inner wall of the front end of the lower cover when connected to the front cover, and also plays a sealing role. In this way, the sealing performance between the front cover and the inner wall of the front end of the upper cover and the inner wall of the front end of the lower cover is improved, preventing water intrusion and meeting the strict sealing requirements for use on ships. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents and symbols in the drawings of this specification:

[0020] Figure 1 This is a schematic diagram of the explosion structure of the ship battery pack sealing structure of the present invention;

[0021] Figure 2 This is a partial structural diagram of the lower cover of the ship battery pack sealing structure according to the present invention;

[0022] Figure 3 This is a partial structural diagram of the front cover of the ship battery pack sealing structure according to the present invention;

[0023] The marks in the accompanying drawings are: 1. upper cover; 2. lower cover; 3. front cover; 4. side surface; 5. sealing surface; 6. step portion; 7. necked portion; 8. waterproof pressure groove; 9. upper cover folding edge; 10. lower cover folding edge; 11. upper cover connecting hole; 12. lower cover connecting screw hole; 13. upper battery module; 14. lower battery module; 15. liquid cooling plate; 16. upper bent edge; 17. waterproof strip; 18. bolt waterproof ring; 19. waterproof ring; 20. screw hole; 21. upper cover opening; 22. lower cover opening; 23. liquid cooling plate water inlet. DETAILED DESCRIPTION

[0024] The following is a detailed description of the embodiments of the present invention, such as the shapes, structures, positions and connections of the various components involved, the functions and working principles of the various components, etc., by referring to the accompanying drawings.

[0025] As attached Figure 1 -Attached Figure 3 As shown, the present invention is a sealing structure for a battery pack for a ship. The battery pack includes an upper cover 1, a lower cover 2, and a front cover 3. The front portion of the upper cover 1 is an upper cover front opening, and the front portion of the lower cover 2 is a lower cover front opening. A sealing surface 5 is provided along the circumference of the side surface 4 of the front cover 3. A step portion 6 is formed between the sealing surface 5 and the side surface 4. The step portion 6 is provided with a recessed neck portion 7. The sealing surface 5 is provided with multiple waterproof pressure grooves 8 along its circumference. The above structure addresses the shortcomings of the existing technology and proposes an improved technical solution. When setting up the structure, first, the battery pack is divided into the upper cover 1, the lower cover 2, and the front cover 3. Then, the structures of the upper cover 1, the lower cover 2, and the front cover 3 are improved respectively. Specifically, the front portion of the upper cover 1 is an upper cover front opening, and the front portion of the lower cover 2 is a lower cover front opening. After the upper cover and the lower cover are fixedly connected, the upper cover front opening and the lower cover front opening form an annular structure, and the side surface 4 of the front cover 3 is provided with a sealing surface 5 along its circumference, a step portion 6 is formed between the sealing surface 5 and the side surface 4, and a recessed concave portion 7 is provided on the step portion 6. The sealing surface 5 is provided with multiple waterproof pressure grooves 8 along its circumference. In this way, when the front cover 3 is connected to the upper cover 1 and the lower cover 2, the sealing surface 5 of the front cover is pushed into the annular structure formed by the upper cover front opening and the lower cover front opening, and the front ends of the upper cover and the lower cover are clamped into the concave portion 7. At the same time, a waterproof ring is installed in the waterproof pressure groove 8, and the waterproof ring acts between the sealing surface and the inner wall of the front end of the upper cover and the inner wall of the front end of the lower cover to form a reliable sealing state. The concave portion 7 provided on the step portion 6 is used to limit the position of the front ends of the upper cover and the lower cover when connected to the front cover, and also plays a sealing role. This effectively improves the sealing performance between the front cover 3 and the front inner wall of the upper cover 1 and the front inner wall of the lower cover 2, preventing water intrusion and meeting the stringent sealing requirements for use on ships. The ship battery pack sealing structure described in the utility model has a simple structure, improves the sealing performance of the battery pack, effectively prevents water intrusion, and thus improves the operating performance and service life of the battery pack.

[0026] The lower portion of the upper cover 1 is provided with an upper cover rear end fold, an upper cover front side fold, and an upper cover rear side fold. The upper cover rear end fold, the upper cover front side fold, and the upper cover rear side fold are connected to form a U-shaped upper cover fold 9. The lower cover 2 is provided with a lower cover rear end fold, a lower cover front side fold, and a lower cover rear side fold. The lower cover rear end fold, the lower cover front side fold, and the lower cover rear side fold are connected to form a U-shaped lower cover fold 10. The upper cover fold 9 is provided with upper cover connection holes 11 at a gap, and the lower cover fold 10 is provided with lower cover connection screw holes 12 at a gap. Each connection bolt passes through an upper cover connection hole 11 and is screwed into a corresponding lower cover connection screw hole 12. With the above structure, when the upper cover and the lower cover are connected, the upper cover fold 9 of the upper cover fits against the lower cover fold 10 of the lower cover. The upper cover fold 9 and the lower cover fold 10 are fixedly connected by bolts, and the connection reliability is good.

[0027] The battery pack comprises an upper battery module 13 and a lower battery module 14, with a liquid cooling plate 15 positioned between them. This structure, through the internal circulation of cooling water, maximizes heat dissipation from the internal cells, eliminating the risk of heat concentration affecting the lifespan of the cells within the battery pack. Dynamic control of the medium flow rate maximizes heat conduction and cooling efficiency under varying operating conditions.

[0028] The lower cover fold 10 is provided with an upper bend 16 on the outside, and a waterproof strip 17 is provided on the lower cover fold 10. Multiple bolt waterproof rings 18 are provided on the waterproof strip 17. After the waterproof strip 17 is provided on the lower cover fold 10, each bolt waterproof ring 18 is located above a corresponding lower cover connection screw hole 12. In the above structure, the lower cover fold 10 and the upper bend 16 have an L-shaped cross-section. The upper bend 16 is used to constrain the waterproof strip 17 on the outside. The waterproof strip can be provided in two parallel structures to form two seals, and a corresponding bolt waterproof ring 18 is provided at the position of each lower cover connection screw hole 12. When the upper and lower covers are connected, the bolts pass through the upper cover connection holes 11 and the bolt waterproof rings 18 are screwed into the lower cover connection screw holes 12. This provides a reliable connection structure, and the waterproof strips are reliably waterproof and dustproof.

[0029] Each waterproof pressure groove 8 of the sealing surface 5 is respectively fitted with a waterproof ring 19. The sealing surface 5 is provided with a plurality of screw holes 20 at intervals along a circumference, a plurality of upper cover openings 21 are provided at the front end of the upper cover 1, and a plurality of lower cover openings 22 are provided at the front end of the lower cover 2. When the front cover 3 is connected to the upper cover 1 and the lower cover 2, the sealing surface 5 of the front cover 3 is clamped on the front inner wall of the upper cover 1 and the front inner wall of the lower cover 2, and the front end of the upper cover 1 and the front end of the lower cover 2 are configured to be clamped in the necking portion 7. In the above structure, when the front cover is connected to the front inner wall of the upper cover and the front inner wall of the lower cover, the sealing surface 5 of the front cover 3 is clamped on the front inner wall of the upper cover 1 and the front inner wall of the lower cover 2. At this time, the waterproof ring 19 in each waterproof pressure groove 8 is pressed against the front inner wall and the front inner wall of the lower cover 2 to form a reliable sealing barrier. The front ends of the upper cover 1 and the lower cover 2 are clamped in the necking portion 7. On the one hand, the necking portion 7 constrains and limits the horizontal movement position of the upper cover and the lower cover. On the other hand, the necking portion can reliably seal the joint between the upper cover and the lower cover.

[0030] When the front cover 3 is connected to the upper cover 1 and the lower cover 2, each screw passes through an opening in the upper cover 1 or the lower cover 2 and is screwed into a corresponding screw hole 20 on the sealing surface 5. In the above structure, the screws connect the front cover and the upper cover, and the screws connect the front cover and the lower cover, ensuring reliable connection performance.

[0031] The liquid cooling plate 15 is provided with a liquid cooling plate water inlet pipe 23 and a liquid cooling plate water inlet pipe. In the above structure, the liquid cooling plate water inlet pipe 23 and the liquid cooling plate water inlet pipe form a cooling medium circulation.

[0032] The ship battery pack sealing structure described in the present invention is constructed by dividing the battery pack into an upper cover 1, a lower cover 2, and a front cover 3. The structures of the upper cover 1, lower cover 2, and front cover 3 are then improved. Specifically, the front portion of the upper cover 1 is an upper cover front opening, and the front portion of the lower cover 2 is a lower cover front opening. After the upper and lower covers are fixedly connected, the upper and lower cover front openings form an annular structure. The side surface 4 of the front cover 3 is provided with a sealing surface 5 along its perimeter, a step 6 is formed between the sealing surface 5 and the side surface 4, and a recessed necking portion 7 is provided on the step 6. The sealing surface 5 is provided with multiple waterproof pressure grooves 8 along its perimeter. In this way, when the front cover 3 is connected to the upper cover 1 and the lower cover 2, the sealing surface 5 of the front cover is pushed into the annular structure formed by the front opening of the upper cover and the front opening of the lower cover, and the front ends of the upper cover and the lower cover are clamped into the constricted portion 7. At the same time, a waterproof ring is set in the waterproof pressure groove 8. The waterproof ring acts between the sealing surface and the inner wall of the front end of the upper cover and the inner wall of the front end of the lower cover to form a reliable sealing state. The constricted portion 7 set on the step portion 6 is used to limit the front end of the upper cover and the front end of the lower cover when connected to the front cover, and at the same time plays a sealing role. In this way, the sealing performance between the front cover 3 and the inner wall of the front end of the upper cover 1 and the inner wall of the front end of the lower cover 2 is effectively improved, preventing water intrusion and meeting the strict sealing requirements for use on ships.

[0033] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A ship battery pack sealing structure, characterized in that: The battery pack comprises an upper cover (1), a lower cover (2), and a front cover (3). The front portion of the upper cover (1) is an upper cover front opening, the front portion of the lower cover (2) is a lower cover front opening, a sealing surface (5) is arranged along a circumference of a side surface (4) of the front cover (3), a step portion (6) is formed between the sealing surface (5) and the side surface (4), a recessed neck portion (7) is arranged on the step portion (6), and a plurality of waterproof pressure grooves (8) are arranged along a circumference of the sealing surface (5).

2. The ship battery pack sealing structure according to claim 1, characterized in that: The upper cover (1) is provided with an upper cover rear end folding edge, an upper cover front side folding edge, and an upper cover rear side folding edge at the lower part, and the upper cover rear end folding edge, the upper cover front side folding edge, and the upper cover rear side folding edge are connected to form a U-shaped upper cover folding edge (9); the lower cover (2) is provided with a lower cover rear end folding edge, a lower cover front side folding edge, and a lower cover rear side folding edge, and the lower cover rear end folding edge, the lower cover front side folding edge, and the lower cover rear side folding edge are connected to form a U-shaped lower cover folding edge (10).

3. The ship battery pack sealing structure according to claim 2, characterized in that: The upper cover folding edge (9) is provided with an upper cover connecting hole (11) at a gap, and the lower cover folding edge (10) is provided with a lower cover connecting screw hole (12) at a gap, and each connecting bolt passes through an upper cover connecting hole (11) and is screwed and connected with a corresponding lower cover connecting screw hole (12).

4. The ship battery pack sealing structure according to claim 1 or 2, characterized in that: An upper battery module (13) and a lower battery module (14) are arranged in the battery pack, and a liquid cooling plate (15) is arranged between the upper battery module (13) and the lower battery module (14).

5. The ship battery pack sealing structure according to claim 2 or 3, characterized in that: An upper bent edge (16) is arranged on the outer side of the lower cover folding edge (10), a waterproof strip (17) is arranged on the lower cover folding edge (10), and a plurality of bolt waterproof rings (18) are arranged on the waterproof strip (17). After the waterproof strip (17) is arranged on the lower cover folding edge (10), each bolt waterproof ring (18) is located above a corresponding lower cover connecting screw hole (12).

6. The ship battery pack sealing structure according to claim 1 or 2, characterized in that: Each waterproof pressure groove (8) of the sealing surface (5) is respectively mounted with a waterproof ring (19).

7. The ship battery pack sealing structure according to claim 1 or 2, characterized in that: The sealing surface (5) is provided with a plurality of screw holes (20) at intervals along a circumference, a plurality of upper cover openings (21) are provided at the front end of the upper cover (1), and a plurality of lower cover openings (22) are provided at the front end of the lower cover (2).

8. The ship battery pack sealing structure according to claim 1 or 2, characterized in that: When the front cover (3) is connected to the upper cover (1) and the lower cover (2), the sealing surface (5) of the front cover (3) is clamped on the front inner wall of the upper cover (1) and the front inner wall of the lower cover (2), and the front end of the upper cover (1) and the front end of the lower cover (2) are configured to be able to be clamped in the necking portion (7).

9. The ship battery pack sealing structure according to claim 7, characterized in that: When the front cover (3) is connected to the upper cover (1) and the lower cover (2), each screw passes through an opening of the upper cover (1) or the lower cover (2) and is screwed and connected to a corresponding screw hole (20) on the sealing surface (5).

10. The ship battery pack sealing structure according to claim 4, characterized in that: The liquid cooling plate (15) is provided with a liquid cooling plate water inlet pipe opening (23) and a liquid cooling plate water inlet pipe opening.

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