Moisture-proof enclosure for energy storage battery

Abstract

This invention discloses a moisture-proof casing for energy storage batteries, belonging to the technical field of energy storage battery casings. It includes a casing body with a cooling fan mounted on one side, the fan's output end connected to an air supply pipe, and the air supply pipes evenly spaced within the casing body. It also includes a dehumidification mechanism located on the other side of the casing body. This dehumidification mechanism uses a desiccant to absorb moisture, and a heating element is located inside the mechanism, which heats the desiccant for cyclical use. This moisture-proof casing for energy storage batteries absorbs moisture by placing a desiccant inside the casing. Once the desiccant becomes saturated with moisture, it can be replaced to maintain the dehumidification effect. Furthermore, the used desiccant can be dried for reuse, eliminating the need for frequent replacement and making it convenient to use.

Description

Technical Field

[0001] This invention relates to the field of energy storage battery casing technology, specifically to a moisture-proof casing for energy storage batteries. Background Technology

[0002] The casing of an energy storage battery is a key component for ensuring battery safety, reliability, and lifespan. As energy storage systems develop towards higher energy density, longer lifespan, and wider application scenarios, casing technology is also undergoing profound changes, from traditional metals to high-performance composite materials and from single structures to functionally integrated structures. For example, a battery pack casing structure with announcement number CN220358242U relates to the field of energy storage battery pack casing technology. It includes an energy storage battery pack body, with a casing fitted on both sides of the battery pack body. The surface of the casing has multiple power sockets and control buttons electrically connected to the battery pack body. Multiple heat dissipation vents are opened on one side wall of the casing, and a cooling fan is installed on the side wall of the casing away from the heat dissipation vents. Multiple partition strips are evenly distributed on the inner wall of the casing. One side of each partition strip abuts against the side wall of the battery pack body. An air duct is provided between two adjacent partition strips, and the two ends of the air duct are connected to the heat dissipation vents and the cooling fan, respectively. The design of the air duct facilitates air convection within the casing, increasing the contact area between the air and the side wall of the energy storage battery pack, thereby improving the heat dissipation effect on the energy storage battery pack. For example, a battery explosion-proof housing assembly with publication number CN118281413A includes a main housing, a fire extinguishing assembly on the inner wall of the main housing, a cooling assembly at the bottom of the main housing, a control module fixedly connected to the middle of the main housing, and a discharge electrode fixedly connected to the top of the main housing. By combining the cooling assembly and ventilation openings, the problem of wind-driven heat dissipation and dust accumulation is solved. Heat is absorbed by thermal pads and thermally conductive copper pipes, and then an electric telescopic rod drives a water-guiding pusher to reciprocate, pushing cooling water into the thermally conductive copper pipes. Simultaneously, the cooling water already heated inside the thermally conductive copper pipes, through the combination of the fire extinguishing assembly and the main housing structure, solves the problem of the inability to extinguish battery fires in a timely manner. However, the above-mentioned battery pack housing still has the following drawbacks in actual use: To achieve moisture protection, traditional energy storage battery casings typically employ a sealed structure or contain desiccant to absorb moisture. However, desiccant becomes saturated after absorbing moisture and requires periodic replacement; otherwise, it will affect moisture absorption, making it inconvenient to use. To address these issues, innovative designs based on existing moisture-proof casings are urgently needed. Summary of the Invention

[0003] The purpose of this invention is to provide a moisture-proof casing for energy storage batteries, in order to achieve moisture protection, traditional energy storage battery casings typically use a sealed structure or place a desiccant inside the casing to absorb moisture. However, the desiccant becomes saturated after absorbing moisture and needs to be replaced regularly, otherwise it will affect the absorption of moisture, thus making it inconvenient to use.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a moisture-proof shell for an energy storage battery, comprising a shell body, a cooling fan installed on one side of the shell body, the output end of the cooling fan being connected to an air supply pipe, and the air supply pipes being arranged at equal intervals within the shell body; It also includes a dehumidification mechanism, which is located on the other side of the outer casing. The dehumidification mechanism dehumidifies by adsorbing moisture with a desiccant, and a heating component is provided inside the dehumidification mechanism. The heating component is used in a cyclical manner by heating the desiccant.

[0005] Preferably, the dehumidification mechanism includes a servo motor embedded in the housing body, and the output shaft of the servo motor is connected to a connecting shaft. The outer side of the connecting shaft is wrapped with a rubber layer. When the connecting shaft rotates in one direction, it can drive the support to rotate, while when it rotates in the other direction, the support remains fixed.

[0006] Preferably, a support seat is sleeved on the outer side of the connecting shaft, and the support seat and the connecting shaft are connected by a one-way bearing. The support seat is located inside the through groove, which is opened on the outer shell body. The connecting shaft drives the support seat to rotate, thereby switching the desiccant cylinder.

[0007] Preferably, a sealing sheet is attached to the inner side of the through groove, and the side of the sealing sheet away from the outer shell body is tightly fitted with the outer wall of the support base. The support base forms a rotating structure with the outer shell body through the through groove. The sealing sheet allows the desiccant cylinder to be rotated so that the sealing sheet can be deformed, which will not affect the rotation and can maintain the sealing performance.

[0008] Preferably, a desiccant cylinder is movably installed on the inner side of the support base, and the desiccant cylinder is connected to the support base through a disassembly mechanism. The desiccant cylinders are symmetrically distributed about the vertical axis of the support base, and the outer wall of the desiccant cylinder is in close contact with the outer wall of the connecting shaft. One desiccant cylinder absorbs moisture, and the other desiccant cylinder is dried by hot air for subsequent recycling.

[0009] Preferably, the disassembly mechanism includes a movable shaft fixed to both ends of the desiccant cylinder, and a limit block is provided at the end of the movable shaft away from the desiccant cylinder. The limit block and the movable shaft are rotatably connected. When the desiccant cylinder rotates, it rotates on the limit block through the movable shaft. The limit block remains stationary, which facilitates the subsequent disassembly of the desiccant cylinder.

[0010] Preferably, the limiting block has a rectangular cross-section, and the limiting block and the fixing groove are connected by a damped sliding connection, and the fixing groove is symmetrically opened at the top and bottom of the support base.

[0011] Preferably, the heating assembly includes a connecting hose fixed between the outer shell body and the movable cover, and the interior of the outer shell body is connected to the fixed cavity through the connecting hose. The fixed cavity is located inside the movable cover, and the side of the movable cover is uniformly reserved with air vents. Gas containing heat can be transmitted to the fixed cavity through the connecting hose and finally discharged from the air vents to dry the damp desiccant cartridge.

[0012] Preferably, the movable cover is hinged to the inside of the protective box, and the protective box is fixed to the side of the outer shell body. The side of the protective box is provided with an exhaust window, through which the gas after heat dissipation is discharged.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the moisture-proof shell for the energy storage battery absorbs moisture by placing a desiccant inside the shell, and the dehumidification effect can be maintained by replacing the desiccant after it becomes saturated with moisture. Furthermore, the desiccant can be dried after use for recycling, thus eliminating the need for frequent replacement and making it more convenient to use. The specific details are as follows: 1. When one of the desiccant cylinders 9 is saturated with moisture, the servo motor 6 drives the connecting shaft 7 to rotate, which in turn drives the support base 8 to rotate inside the through groove 4. After rotating 180°, the desiccant cylinder 9 is switched to dry the saturated desiccant cylinder 9. The dehumidification effect is ensured by switching to a new desiccant cylinder 9. 2. Since the connecting shaft and the support base are connected by a one-way bearing, the support base remains stationary when the connecting shaft rotates in one direction. The resistance between the connecting shaft and the desiccant cylinder can drive the desiccant cylinder to rotate, thereby improving its dehumidification and drying efficiency. Furthermore, the desiccant cartridge can maintain stability within the fixed groove through the limiting block, without affecting its rotation. When replacing the desiccant cartridge later, the sliding between the limiting block and the fixed groove also facilitates disassembly. 3. The gas containing heat is transferred to the fixed chamber through the connecting hose, and then discharged from the air outlet, blowing onto the desiccant cylinder that has absorbed moisture to dry it so that it can be recycled later. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the gas pipeline structure of the present invention; Figure 3 This is a schematic diagram of the sealing sheet structure of the present invention; Figure 4 This is a schematic cross-sectional view of the outer shell of the present invention; Figure 5 This is a schematic diagram of the movable cover structure of the present invention; Figure 6 This is a schematic diagram of the support structure of the present invention; Figure 7 This is a schematic diagram of the desiccant cylinder structure of the present invention; Figure 8 This is a schematic diagram of the movable shaft structure of the present invention; Figure 9 This is a schematic diagram of the limiting block structure of the present invention.

[0015] In the diagram: 1. Outer shell; 2. Cooling fan; 3. Air supply pipe; 4. Through groove; 5. Sealing plate; 6. Servo motor; 7. Connecting shaft; 8. Support base; 9. Desiccant cartridge; 10. Movable shaft; 11. Limiting block; 12. Fixing groove; 13. Connecting hose; 14. Movable cover; 15. Fixing cavity; 16. Air outlet; 17. Protective box; 18. Exhaust window. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-9 The present invention provides the following technical solution: Example 1: To address the problems existing in the prior art, this example provides the following technical solution: a moisture-proof casing for an energy storage battery, comprising a casing body 1, a cooling fan 2 installed on one side of the casing body 1, the output end of the cooling fan 2 being connected to an air supply pipe 3, and the air supply pipe 3 being equally spaced within the casing body 1; further comprising: a dehumidification mechanism, disposed on the other side of the casing body 1, the dehumidification mechanism dehumidifying by adsorbing moisture with a desiccant, and a heating component disposed inside the dehumidification mechanism, the heating component being used cyclically by heating the desiccant.

[0018] To achieve moisture protection, existing energy storage battery casings typically employ a sealed structure or contain desiccant to absorb moisture. However, these desiccant agents become saturated after absorbing moisture and require periodic replacement; otherwise, their moisture absorption capacity will be compromised. Therefore, they are not very convenient to use. Figures 1-4 As shown, the dehumidification mechanism includes a servo motor 6 embedded in the outer casing 1, and the output shaft of the servo motor 6 is connected to a connecting shaft 7, with a rubber layer covering the outer side of the connecting shaft 7. A support seat 8 is sleeved on the outer side of the connecting shaft 7, and the support seat 8 and the connecting shaft 7 are connected by a one-way bearing. The support seat 8 is located inside the through groove 4, which is located on the outer casing 1. A sealing sheet 5 is pasted on the inner side of the through groove 4, and the side of the sealing sheet 5 away from the outer casing 1 is tightly fitted with the outer wall of the support seat 8. The support seat 8 and the outer casing 1 form a rotating structure through the through groove 4. A desiccant cylinder 9 is movably installed inside the support seat 8, and the desiccant cylinder 9 is connected to the support seat 8 through a disassembly mechanism. The desiccant cylinders 9 are symmetrically distributed about the vertical axis of the support seat 8, and the outer wall of the desiccant cylinder 9 is connected to the connecting shaft 7. The outer wall of the battery is in close contact with the air supply pipe 3, which is generated by the operation of the cooling fan 2. The air is then blown into the outer casing 1 to dissipate heat and remove the heat from the outer casing 1. At the same time, the desiccant cartridge 9 can absorb the moisture inside the outer casing 1 and keep the inside of the outer casing 1 dry. When the moisture inside one of the desiccant cartridges 9 is saturated, the servo motor 6 drives the connecting shaft 7 to rotate, which in turn drives the support base 8 to rotate inside the through groove 4. After rotating 180°, the desiccant cartridge 9 is switched to dry the saturated desiccant cartridge 9. The dehumidification effect is ensured by switching to a new desiccant cartridge 9. When the support base 8 rotates, it can open the sealing plate 5, which will not hinder the switching of the desiccant cartridge 9, while ensuring the sealing between the through groove 4 and the support base 8.

[0019] Example 2: The existing desiccant cartridge 9 is located inside the outer casing 1, making it difficult to replace and inconvenient to disassemble and assemble. Therefore, this example uses the following technical solution, such as... Figures 7-9As shown, the disassembly mechanism includes movable shafts 10 fixed to both ends of the desiccant cartridge 9, with a limiting block 11 at the end of the movable shaft 10 away from the desiccant cartridge 9, and the limiting block 11 and the movable shaft 10 are rotatably connected; the limiting block 11 has a rectangular cross-section, and the limiting block 11 and the fixing groove 12 are damped sliding connected, and the fixing groove 12 is symmetrically opened at the top and bottom of the support base 8; the movable cover 14 on the protective box 17 can be opened, and the limiting blocks 11 at both ends of the desiccant cartridge 9 can be pulled out of the fixing groove 12, thus realizing the disassembly and replacement of the desiccant cartridge 9. When the desiccant cartridge 9 has been used for a long time and its moisture absorption effect has decreased, it needs to be replaced, and the installation is also very convenient. Installed inside the support base 8, the desiccant cylinder 9 is secured in the fixing groove 12 by the limiting block 11, ensuring its stability. When the servo motor 6 drives in the other direction, the support base 8 remains stationary. Through the resistance between the connecting shaft 7 and the desiccant cylinder 9, the desiccant cylinder 9 can be rotated. Both ends of the desiccant cylinder 9 can rotate on the limiting block 11 via the movable shaft 10. By rotating the desiccant cylinder 9, it can fully absorb moisture, ensuring that different parts of the desiccant cylinder 9 can absorb moisture evenly. On the other hand, rotating the desiccant cylinder 9 can ensure its drying uniformity. The setting of the limiting block 11 can both ensure the stability of the desiccant cylinder 9 and facilitate its disassembly and assembly.

[0020] Example 3: Existing desiccant cartridges 9 are typically replaced directly after absorbing moisture, resulting in resource waste as the desiccant cartridge 9 is not recycled. Therefore, this example addresses this issue through the following technical solution: Figures 4-6 As shown, the heating assembly includes a connecting hose 13 fixed between the outer shell 1 and the movable cover 14. The interior of the outer shell 1 is connected to the fixed cavity 15 through the connecting hose 13, and the fixed cavity 15 is located inside the movable cover 14. At the same time, the side of the movable cover 14 is uniformly provided with air vents 16. The movable cover 14 is hinged to the inside of the protective box 17, and the protective box 17 is fixed to the side of the outer shell 1. The side of the protective box 17 is provided with an exhaust window 18. After the heat is dissipated inside the outer shell 1, the gas containing heat is transferred to the fixed cavity 15 through the connecting hose 13, and then discharged from the air vent 16. It is blown onto the desiccant cylinder 9, which has absorbed moisture, to dry it so that it can be recycled later. Then the gas is discharged through the exhaust window 18.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A moisture-proof casing for an energy storage battery, comprising a casing body (1), wherein a cooling fan (2) is installed on one side of the casing body (1), and the output end of the cooling fan (2) is connected to an air supply pipe (3), and the air supply pipe (3) is arranged at equal intervals inside the casing body (1); Its features are, Also includes: A dehumidification mechanism is provided on the other side of the outer shell body (1). The dehumidification mechanism dehumidifies by adsorbing moisture with a desiccant. A heating component is provided inside the dehumidification mechanism, and the heating component is used in a cyclic manner by heating the desiccant.

2. The moisture-proof casing for an energy storage battery according to claim 1, characterized in that: The dehumidification mechanism includes a servo motor (6) embedded in the housing body (1), and the output shaft of the servo motor (6) is connected to a connecting shaft (7), and the outside of the connecting shaft (7) is wrapped with a rubber layer.

3. A moisture-proof casing for an energy storage battery according to claim 2, characterized in that: The outer side of the connecting shaft (7) is fitted with a support seat (8), and the support seat (8) and the connecting shaft (7) are connected by a one-way bearing. The support seat (8) is located inside the through groove (4), and the through groove (4) is opened on the outer shell body (1).

4. A moisture-proof casing for an energy storage battery according to claim 3, characterized in that: A sealing sheet (5) is pasted on the inner side of the through groove (4), and the side of the sealing sheet (5) away from the outer shell body (1) is tightly fitted with the outer wall of the support base (8), and the support base (8) forms a rotating structure through the through groove (4) and the outer shell body (1).

5. A moisture-proof casing for an energy storage battery according to claim 4, characterized in that: The desiccant cylinder (9) is movably installed on the inner side of the support base (8), and the desiccant cylinder (9) is connected to the support base (8) through a disassembly mechanism. The desiccant cylinder (9) is symmetrically distributed about the vertical axis of the support base (8), and the outer wall of the desiccant cylinder (9) is in close contact with the outer wall of the connecting shaft (7).

6. A moisture-proof casing for an energy storage battery according to claim 5, characterized in that: The disassembly mechanism includes a movable shaft (10) fixed at both ends of the desiccant cylinder (9), and a limit block (11) is provided at one end of the movable shaft (10) away from the desiccant cylinder (9), and the limit block (11) and the movable shaft (10) are rotatably connected.

7. A moisture-proof casing for an energy storage battery according to claim 6, characterized in that: The limiting block (11) has a rectangular cross-section, and the limiting block (11) and the fixing groove (12) are connected by damping sliding, and the fixing groove (12) is symmetrically opened at the top and bottom of the support base (8).

8. A moisture-proof casing for an energy storage battery according to claim 1, characterized in that: The heating assembly includes a connecting hose (13) fixed between the outer shell body (1) and the movable cover (14), and the interior of the outer shell body (1) is connected to the fixed cavity (15) through the connecting hose (13), and the fixed cavity (15) is located inside the movable cover (14), while the side of the movable cover (14) is uniformly reserved with air vents (16).

9. A moisture-proof casing for an energy storage battery according to claim 8, characterized in that: The movable cover (14) is hinged to the inside of the protective box (17), and the protective box (17) is fixed to the side of the outer shell body (1), and the side of the protective box (17) is provided with an exhaust window (18).

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