Waterproof and corrosion-resistant lithium battery

Abstract

The utility model relates to the technical field of lithium batteries, and discloses a waterproof corrosion-resistant lithium battery which comprises a first protective shell, an upper connecting plate, a lithium battery, a lower connecting plate and a second protective shell, the lithium battery is arranged between the upper connecting plate and the lower connecting plate, and the upper connecting plate is installed at the top end in the first protective shell through bolts. The first protective shell and the second protective shell are fixed through a connecting ring and a bolt, the connecting position is good in sealing performance, sealant is arranged between the isolation plate and the heat dissipation plate, the vent hole and related gap design can block moisture and prevent the moisture from making contact with battery components, and the heat dissipation plate is installed in an installation hole of the isolation plate. The upper cooling fin and the lower cooling fin increase the heat dissipation area and can effectively dissipate heat generated by working of the lithium battery, the power port is formed in the right end of the first protective shell and connected with the upper connecting plate, charging and discharging of the lithium battery and external equipment and accurate inserting connection of the positioning groove and the positioning block are achieved, it is ensured that the installation positions of components are accurate, and it is ensured that the overall structure of the battery is stable.

Description

A waterproof and corrosion-resistant lithium battery Technical Field

[0001] This utility model relates to the field of lithium battery technology, specifically to a waterproof and corrosion-resistant lithium battery. Background Technology

[0002] Lithium batteries are rechargeable batteries that use lithium and its compounds as the main electrolyte. They are widely used in portable electronic devices such as mobile phones, laptops, and electric vehicles. Their main advantages include high energy density, long cycle life, and low self-discharge rate. The working principle of lithium batteries is to store and release electrical energy by the migration of lithium ions between the positive and negative electrodes. Common types include lithium-ion batteries and lithium polymer batteries. Despite their superior performance, safety issues need to be considered during the charging and use of lithium batteries.

[0003] Traditional lithium battery technology has many shortcomings in terms of waterproofing, heat dissipation, electrical connection and installation. For example, the lack of a multi-layer protective structure makes it susceptible to corrosion by water and corrosive substances, poor heat dissipation design can cause the battery to overheat and affect performance, and the electrical connection is unstable and inconvenient to install, and the component position is prone to deviation, which may lead to risks such as fire and explosion. To address these issues, we propose a waterproof and corrosion-resistant lithium battery. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a waterproof and corrosion-resistant lithium battery, which solves the above-mentioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a waterproof and corrosion-resistant lithium battery, comprising a first protective shell, an upper connecting plate, a lithium battery, a lower connecting plate, and a second protective shell. The lithium battery is disposed between the upper connecting plate and the lower connecting plate. The upper connecting plate is bolted to the top of the interior of the first protective shell. An isolation plate is provided inside the second protective shell. The lower connecting plate is threadedly installed above the isolation plate. A heat sink is installed on the internal thread of the isolation plate. A sealant is provided between the upper end face of the isolation plate and the lower end face of the heat sink. A power port is provided at the right end of the first protective shell, and the power port is connected to the upper connecting plate. The first and second protective shells are threadedly connected, wherein the upper connecting plate and the lower connecting plate have an anti-symmetrical structure.

[0008] Preferably, a rectangular isolation plate is fixed inside the second protective shell. A rectangular mounting hole is clamped on the isolation plate, and a heat sink is threaded onto the mounting hole. Multiple heat sinks are provided at the upper and lower ends of the heat sink. A sealant is provided between the upper surface of the isolation plate and the lower surface of the heat sink.

[0009] Preferably, the second protective shell has rectangular vent holes at both ends, and the vent holes penetrate through both ends of the second protective shell. There is a gap between the bottom of the inner part of the second protective shell and the isolation plate, and the gap corresponds one-to-one with the vent holes.

[0010] Preferably, a plurality of threaded posts are fixed on the isolation plate, and a lower connecting plate is fixedly connected to the top surface of the threaded posts with bolts. A plurality of placement slots are provided on the top of the lower connecting plate, and lithium batteries are placed inside the placement slots.

[0011] Preferably, the top of the first protective shell is fixed with multiple threaded post IIs, and the bottom end of the threaded post IIs is fixed with an upper connecting plate by bolts. The top of the lithium battery is connected to the upper connecting plate. The right end of the first protective shell has a power port, and the power port is connected to the upper connecting plate.

[0012] Preferably, the top surface of the second protective shell is provided with a rectangular positioning groove, and the bottom surface of the first protective shell is fixed with a rectangular positioning block. The positioning block is inserted into the positioning groove. Connecting rings are fixed on the outer side of the connection between the first protective shell and the second protective shell. The first protective shell and the second protective shell are fixedly connected by bolts using the connecting rings.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a waterproof and corrosion-resistant lithium battery, which has the following beneficial effects:

[0015] 1. This waterproof and corrosion-resistant lithium battery features a first and second protective shell that are tightly secured to each other with connecting rings and bolts. The connecting rings on the outside of the connection point greatly enhance the overall sealing performance, effectively preventing the intrusion of external moisture and corrosive substances. Secondly, the sealant between the isolation plate and the heat dissipation plate inside the second protective shell acts as a strong defense, further preventing moisture penetration. Furthermore, although vent holes run through both ends of the second protective shell, the gap between the bottom of the second protective shell and the isolation plate corresponds to the vent holes. This balances air pressure while preventing moisture from directly contacting the battery components, thus significantly extending the battery's lifespan and enabling it to operate stably in harsh environments such as humidity and corrosion.

[0016] 2. This waterproof and corrosion-resistant lithium battery features a heat sink threaded onto the mounting holes of the separator plate. Multiple heat sinks at its upper and lower ends significantly increase the heat dissipation area. The heat generated by the lithium battery during operation is sequentially transferred to the heat sink and dissipated through the lower connecting plate and separator plate, maintaining a suitable operating temperature and ensuring stable battery performance. In terms of electrical connection, the power port is located at the right end of the first protective shell and connected to the upper connecting plate, smoothly enabling charging and discharging cycles between the lithium battery and external devices. Furthermore, the positioning groove on the top surface of the second protective shell precisely engages with the positioning block on the bottom surface of the first protective shell, facilitating installation while ensuring accurate positioning of all components, providing strong support for the overall stability of the battery structure. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the structure of this utility model;

[0018] Figure 2 is a schematic cross-sectional view of the structure of this utility model;

[0019] Figure 3 is a structural breakdown diagram of this utility model;

[0020] Figure 4 is a schematic diagram of the second protective shell structure of this utility model;

[0021] Figure 5 is a schematic diagram of the first protective shell structure of this utility model;

[0022] Figure 6 is a schematic diagram of the connecting plate structure of this utility model.

[0023] In the diagram: 1. Power port; 2. First protective shell; 3. Upper connecting plate; 4. Lithium battery; 5. Lower connecting plate; 6. Second protective shell; 7. Isolation plate; 8. Heat sink; 9. Sealant; 10. Vent hole; 11. Threaded post one; 12. Mounting hole; 13. Positioning groove; 14. Positioning block; 15. Threaded post two; 16. Placement groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please refer to Figures 1-6. A waterproof and corrosion-resistant lithium battery includes a first protective shell 2, an upper connecting plate 3, a lithium battery 4, a lower connecting plate 5, and a second protective shell 6. The lithium battery 4 is disposed between the upper connecting plate 3 and the lower connecting plate 5. The upper connecting plate 3 is bolted to the top of the inside of the first protective shell 2. The second protective shell 6 has an isolation plate 7 inside. The lower connecting plate 5 is threaded onto the top of the isolation plate 7. A heat sink 8 is threaded onto the inside of the isolation plate 7. A sealant 9 is provided between the upper end face of the isolation plate 7 and the lower end face of the heat sink 8. A power port 1 is provided at the right end of the first protective shell 2. The power port 1 is connected to the upper connecting plate 3. The first protective shell 2 and the second protective shell 6 are threaded together. The upper connecting plate 3 and the lower connecting plate 5 have an anti-symmetrical structure.

[0026] Furthermore, a rectangular isolation plate 7 is fixed inside the second protective shell 6. A rectangular mounting hole 12 is fitted on the isolation plate 7. A heat sink 8 is threaded onto the mounting hole 12. Multiple heat sinks are provided at the upper and lower ends of the heat sink 8. A sealant 9 is provided between the upper end face of the isolation plate 7 and the lower end face of the heat sink 8. This serves to both utilize the heat sink 8 to efficiently dissipate heat to maintain a suitable operating temperature for the battery and ensure stable performance, and use the sealant 9 to prevent moisture penetration and improve the battery's waterproof performance.

[0027] Furthermore, rectangular vent holes 10 are provided at both ends of the second protective shell 6, and the vent holes 10 penetrate through both ends of the second protective shell 6. There is a gap between the bottom of the interior of the second protective shell 6 and the isolation plate 7. The gap corresponds one-to-one with the vent holes 10, which prevents moisture from directly contacting the battery components, enhances the waterproof performance of the battery, and ensures the stability of its internal pressure.

[0028] Furthermore, multiple threaded posts 11 are fixed on the isolation plate 7. The top surface of the threaded posts 11 is fixedly connected to the lower connecting plate 5 with bolts. The top of the lower connecting plate 5 is provided with multiple placement slots 16. The lithium battery 4 is placed inside the placement slots 16, which play a role in firmly supporting the lithium battery 4, ensuring that its position inside the battery is fixed, and thus ensuring the stability of the overall battery structure.

[0029] Furthermore, multiple threaded post 25s are fixed to the top of the inside of the first protective shell 2. The bottom end of the threaded post 25 is fixed with an upper connecting plate 3 by bolts. The top of the lithium battery 4 is connected to the upper connecting plate 3. The right end of the first protective shell 2 has a power port 1, which is connected to the upper connecting plate 3 to ensure stable power transmission and to supply power to external devices or receive external charging.

[0030] Furthermore, a rectangular positioning groove 13 is provided on the top surface of the second protective shell 6, and a rectangular positioning block 14 is fixed on the bottom surface of the first protective shell 2. The positioning block 14 is inserted into the positioning groove 13. Connecting rings are fixed on the outer side of the connection between the first protective shell 2 and the second protective shell 6. The first protective shell 2 and the second protective shell 6 are fixedly connected by bolts using the connecting rings to ensure that the two are precisely connected and tightly joined, thereby enhancing the stability and sealing of the overall battery structure.

[0031] Structural Description:

[0032] Power Port 1: Power Port 1 is a key component for connecting the lithium battery to the outside world. It is located at the right end of the first protective shell 2 and is connected to the upper connecting plate 3. It is responsible for realizing the power transmission between the battery and external devices.

[0033] First protective shell 2: The first protective shell 2 is the front protection structure of the lithium battery. The top of the interior has a threaded post 15 for installing the upper connecting plate 3, and the right end has a power port 1, which works with the second protective shell 6 to protect the internal components of the battery.

[0034] Upper connecting plate 3: The upper connecting plate 3 is located at the top of the first protective shell 2 and is connected to the threaded post 15 by bolts. It is symmetrical to the lower connecting plate 5 and is used to connect the lithium battery 4 and the power port 1 to achieve electrical connection.

[0035] Lithium Battery 4: Lithium Battery 4 is the core component of the battery. It is located between the upper and lower connecting plates, provides power to external devices and receives charging. It is a key component for storing and releasing electrical energy.

[0036] Lower connecting plate 5: The lower connecting plate 5 is symmetrical to the upper connecting plate 3 in the opposite direction. It is connected to the threaded post 11 on the isolation plate 7 by bolts. The placement groove 16 at the top is used to place the lithium battery 4 and plays a supporting and fixing role.

[0037] Second protective shell 6: The second protective shell 6 is a protective structure for the rear end of the lithium battery. It has an internal isolation plate 7 and a positioning groove 13 on the top surface, which is threadedly connected to the first protective shell 2 to jointly protect the internal components of the battery.

[0038] Isolation plate 7: Isolation plate 7 is fixed inside the second protective shell 6 and is provided with mounting holes 12 and threaded post 11 for mounting heat dissipation plate 8 and lower connecting plate 5, serving as isolation and support;

[0039] Heat sink 8: The heat sink 8 is threaded onto the mounting hole 12 of the isolation plate 7. It has multiple heat sinks at the top and bottom, which are responsible for dissipating the heat generated by the lithium battery 4 during operation and ensuring stable battery performance.

[0040] Sealant 9: Sealant 9 is located between the connection surfaces of the separator 7 and the heat sink 8, acting as a barrier to effectively prevent moisture penetration and improve the battery's waterproof performance.

[0041] Vent 10: Vent 10 is opened at both ends of the second protective shell 6 and extends through it. It works in conjunction with the internal gap to balance the internal air pressure of the battery while preventing moisture from contacting the battery components.

[0042] Threaded post 11: Threaded post 11 is fixed on the isolation plate 7, and its top surface is connected to the lower connecting plate 5 with bolts, providing a stable installation base for the lower connecting plate 5 and ensuring the stability of the battery structure;

[0043] Mounting hole 12: Mounting hole 12 is provided on the isolation plate 7. It is rectangular and used for threaded installation of heat sink 8 to ensure that heat sink 8 is installed firmly and performs its heat dissipation function.

[0044] Positioning groove 13: The positioning groove 13 is formed on the top surface of the second protective shell 6, and is rectangular. It is inserted and matched with the positioning block 14 on the bottom surface of the first protective shell 2, which facilitates installation and ensures accurate docking of the two shells.

[0045] Positioning block 14: Positioning block 14 is fixed to the bottom surface of the first protective shell 2, is rectangular, and is inserted into the positioning groove 13 of the second protective shell 6 to assist in the installation of the two shells and enhance the overall structural stability.

[0046] Threaded post 2 15: Threaded post 2 15 is fixed inside the top of the first protective shell 2, and the bottom end face is fitted with bolts to install the upper connecting plate 3, providing installation support for the upper connecting plate 3 and ensuring stable electrical connection;

[0047] Placement slot 16: Placement slot 16 is located on the top of the lower connecting plate 5 and is used to place the lithium battery 4. It plays a role in positioning and fixing the lithium battery 4 and ensuring the stability of the overall battery structure.

[0048] Working principle: The lithium battery 4 is located at the core and is firmly clamped by the upper connecting plate 3 and the lower connecting plate 5. The upper connecting plate 3 is tightly connected to the threaded post 15 at the top of the first protective shell 2 with bolts, and the lower connecting plate 5 is fixed to the threaded post 11 on the isolation plate 7 with bolts, forming a stable support structure. The upper connecting plate 3 and the lower connecting plate 5 have an anti-symmetrical structure to ensure that the force applied to the lithium battery 4 is uniform, which is conducive to its stable operation. The first protective shell 2 and the second protective shell 6 are tightly fixed to the bolts by connecting rings. The connecting rings on the outside of the connection enhance the overall sealing. At the same time, sealant 9 is set between the isolation plate 7 and the heat sink 8 inside the second protective shell 6 to effectively prevent moisture penetration. Although the vent 10 runs through both ends of the second protective shell 6, it prevents moisture from entering when balancing the air pressure. The gap between the bottom of the second protective shell 6 and the isolation plate 7 corresponds to the vent 10 to prevent moisture from directly contacting the vent 10. In terms of heat dissipation, the heat sink 8 plays a crucial role in the battery components. The heat sink 8 is threaded onto the mounting holes 12 of the isolation plate 7. Multiple heat sinks at its upper and lower ends increase the heat dissipation area. The heat generated by the lithium battery 4 during operation is transferred to the lower connecting plate 5, then conducted to the isolation plate 7, and finally dissipated by the heat sink 8, maintaining a suitable operating temperature for the battery and ensuring stable performance. In terms of electrical connection, the power port 1 is located at the right end of the first protective shell 2 and is connected to the upper connecting plate 3. The electrical energy generated by the lithium battery 4 is transmitted to the power port 1 through the upper connecting plate 3 to power external devices. When the external device is charging, the current flows into the lithium battery 4 through the power port 1 and the upper connecting plate 3 to achieve a charge and discharge cycle. In terms of positioning and installation, the positioning groove 13 on the top surface of the second protective shell 6 is precisely inserted into the positioning block 14 on the bottom surface of the first protective shell 2, which facilitates installation and ensures accurate positioning of each component, ensuring the overall stability of the battery structure.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof and corrosion-resistant lithium battery, comprising a first protective shell (2), an upper connecting plate (3), a lithium battery (4), a lower connecting plate (5), and a second protective shell (6), characterized in that: The lithium battery (4) is disposed between the upper connecting plate (3) and the lower connecting plate (5). The upper connecting plate (3) is bolted to the top of the inside of the first protective shell (2). The second protective shell (6) is provided with an isolation plate (7). The lower connecting plate (5) is threaded on the top of the isolation plate (7). The internal thread of the isolation plate (7) is provided with a heat sink (8). A sealant (9) is provided between the upper end face of the isolation plate (7) and the lower end face of the heat sink (8). The right end of the first protective shell (2) is provided with a power port (1). The power port (1) is connected to the upper connecting plate (3). The first protective shell (2) and the second protective shell (6) are threaded together. The upper connecting plate (3) and the lower connecting plate (5) are reverse symmetrical structures.

2. The water-proof and corrosion-resistant lithium battery of claim 1, wherein: The second protective shell (6) has a rectangular isolation plate (7) fixed inside. The isolation plate (7) has a rectangular mounting hole (12). A heat sink (8) is threaded onto the mounting hole (12). Multiple heat sinks are provided at the upper and lower ends of the heat sink (8). A sealant (9) is provided between the upper end of the isolation plate (7) and the lower end of the heat sink (8).

3. A waterproof and corrosion-resistant lithium battery according to claim 1, characterized in that: The second protective shell (6) has rectangular exhaust holes (10) at both ends, and the exhaust holes (10) penetrate through both ends of the second protective shell (6). There is a gap between the bottom of the interior of the second protective shell (6) and the isolation plate (7), and the gap corresponds one-to-one with the exhaust holes (10).

4. The water-proof and corrosion-resistant lithium battery of claim 1, wherein: Multiple threaded posts (11) are fixed on the isolation plate (7). The top surface of the threaded posts (11) is fixedly connected to the lower connecting plate (5) with bolts. Multiple placement slots (16) are provided on the top of the lower connecting plate (5). A lithium battery (4) is placed inside the placement slot (16).

5. The water-proof and corrosion-resistant lithium battery of claim 1, wherein: The first protective shell (2) has multiple threaded post 2 (15) fixed at the top inside. The bottom end of the threaded post 2 (15) is fixed with an upper connecting plate (3) by bolts. The top of the lithium battery (4) is connected to the upper connecting plate (3). The right end of the first protective shell (2) has a power port (1) and the power port (1) is connected to the upper connecting plate (3).

6. A waterproof and corrosion-resistant lithium battery according to claim 1, characterized in that: The top surface of the second protective shell (6) is provided with a rectangular positioning groove (13), and the bottom surface of the first protective shell (2) is fixed with a rectangular positioning block (14). The positioning block (14) is inserted into the positioning groove (13). A connecting ring is fixed on the outside of the connection between the first protective shell (2) and the second protective shell (6). The first protective shell (2) and the second protective shell (6) are fixedly connected by bolts using the connecting ring.

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