Corrosion-resistant safety battery housing
By using a double-layered corrosion-resistant safety battery casing, and through the selection of materials and connection design of the inner and outer casings, the problems of poor protection and difficulty in timely detection of electrolyte leakage in traditional battery casings have been solved, thereby improving protection, safety and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO WEIJIE TECHNOLOGY CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional batteries have poor casing protection, making it difficult to detect electrolyte leaks in a timely manner, resulting in poor safety.
The battery features a double-layered, corrosion-resistant casing. The inner casing is made of corrosion-resistant plastic, while the outer casing is made of high-strength metal. The inner and outer casings are reinforced by a connecting strip. The cavity between the inner and outer casings is used to store leaked electrolyte. A liquid level sensor is connected to an alarm device to detect changes in liquid level and issue an alarm.
It improves protection and safety, promptly detects electrolyte leaks and issues alarms to avoid serious accidents, facilitates maintenance and electrolyte replenishment, and enhances operational convenience and battery efficiency.
Smart Images
Figure CN224417846U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery casings, and more particularly to a corrosion-resistant and safe battery casing. Background Technology
[0002] The battery casing is the protective shell of the battery, usually made of plastic. Its main function is to protect the internal structure from external environmental corrosion and damage, while also preventing electrolyte leakage. However, traditional battery casings are mostly single-layer structures, offering poor protection. Furthermore, electrolyte leaks may not be detected promptly, easily leading to safety accidents and resulting in poor safety during use. Utility Model Content
[0003] In order to improve the protective effect of the battery casing and to detect electrolyte leakage in a timely manner to avoid serious safety accidents, this application provides a corrosion-resistant safety battery casing.
[0004] This application provides a corrosion-resistant safety battery casing, which adopts the following technical solution:
[0005] A corrosion-resistant safety battery casing includes an outer casing, an inner casing fixedly connected inside the outer casing, a plurality of connecting strips fixedly connected to the outer casing, the connecting strips being fixedly connected to the inner casing, a sealing cap snapped onto the top of the outer casing, a sealing block threadedly connected to the sealing cap, a liquid level sensor mounted on the sealing block, and a fixing structure provided on the outer casing.
[0006] By adopting the above technical solution, not only can the internal corrosion resistance be improved, but the external support strength can also be enhanced, thereby effectively improving the protection effect. When the electrolyte inside the inner shell leaks, the leaked electrolyte will flow into the cavity between the outer shell and the inner shell. At this time, the electrolyte level inside the inner shell will drop. The drop in electrolyte level will be detected by the level sensor. By connecting the level sensor to the alarm device, when the electrolyte leaks and causes the level to drop, the level sensor can detect it and the alarm device can sound an alarm, thereby reminding the staff to take appropriate measures in time. Moreover, after the electrolyte inside the inner shell leaks, it will temporarily remain between the inner shell and the outer shell and will not leak out, thereby avoiding serious safety accidents. Therefore, the safety of use is effectively improved.
[0007] Optionally, a plurality of protrusions are fixedly connected to the sealing block, and the plurality of protrusions are arranged in a circumferential array about the center of the sealing block.
[0008] By adopting the above technical solution, the hand-held protrusion can prevent the hand from slipping when rotating the sealing block, thus facilitating the installation and removal of the sealing block.
[0009] Optionally, the fixing structure includes a first connecting block and a plug shaft. Multiple first connecting blocks are fixedly connected to the outer shell. A plug shaft is fixedly connected to the first connecting block. A second connecting block is provided at the top of the first connecting block. The second connecting block is fixedly connected to the sealing cover. The plug shaft passes through the adjacent second connecting block. A nut is threaded onto the plug shaft. The cross section of the plug shaft that abuts against the top of the nut and the second connecting block is trapezoidal.
[0010] By adopting the above technical solution, when it is necessary to inspect the battery components inside the inner casing, the nuts can be turned with a wrench to separate the nuts from the insert shaft. After all the nuts are unscrewed from the insert shaft, the sealing cover can be removed from the top of the outer casing, thereby achieving quick disassembly of the sealing cover and facilitating the inspection and maintenance of the battery components inside the inner casing.
[0011] Optionally, the inner shell has multiple partitions fixedly connected inside, and multiple conductive sheets are fixedly connected to the partitions.
[0012] By adopting the above technical solution, the interior of the inner casing can be divided into multiple separate spaces by multiple partitions. Each separate space can be equipped with an independent battery cell, and multiple conductive sheets are connected in series to increase the battery voltage and improve the battery's working efficiency.
[0013] Optionally, two electrodes are fixedly connected to the sealing cover, and two handles are rotatably connected to the sealing cover.
[0014] By adopting the above technical solution, one electrode is a positive electrode and the other is a negative electrode. External electrical devices can be connected to the two electrodes to obtain power. The battery casing can be easily moved by hand using the handle.
[0015] Optionally, multiple protective covers are fixedly connected inside the inner housing, and the bottom end of the liquid level sensor is located inside the protective cover.
[0016] By adopting the above technical solution, the protective cover can separate the liquid level sensor from the battery plates inside the inner casing, thereby providing shielding and protection for the liquid level sensor.
[0017] Optionally, the sealing cap is provided with multiple liquid inlets, and the sealing block is located inside the liquid inlets and forms a seal for the liquid inlets.
[0018] By adopting the above technical solution, when it is necessary to add electrolyte to the inside of the inner shell, the sealing block can be unscrewed from the sealing cover. After the sealing block is unscrewed, the liquid filling port will not be sealed, and then the electrolyte can be added. This avoids the need to remove the sealing cover for adding electrolyte, thereby effectively improving the convenience of operation.
[0019] Optionally, a plurality of mounting bases are fixedly connected to the bottom of the outer side of the housing, and the mounting bases are provided with mounting grooves.
[0020] By adopting the above technical solution, the mounting base can be installed and fixed by multiple mounting slots and bolts, thereby realizing the installation and fixation of the battery casing.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] 1. The inner shell can be made of corrosion-resistant plastic, while the outer shell can be made of high-strength metal material. This not only improves the internal corrosion resistance but also enhances the external support strength, thereby effectively improving the protective effect.
[0023] 2. When the electrolyte inside the inner shell leaks, the leaked electrolyte will flow into the cavity between the outer shell and the inner shell, and will not leak out, thus avoiding serious safety accidents. Therefore, it effectively improves the safety of use. When the electrolyte leak causes the liquid level to drop, it can be detected by the liquid level sensor and an alarm device will be issued to remind the staff to take appropriate measures in time.
[0024] 3. When it is necessary to inspect the battery components inside the inner casing, the nuts can be turned with a wrench to separate the nuts from the insert shaft. After all the nuts are unscrewed from the insert shaft, the sealing cover can be removed from the top of the outer casing, thereby achieving quick disassembly of the sealing cover and facilitating the inspection and maintenance of the battery components inside the inner casing. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below;
[0027] Figure 3 This is a schematic diagram of the connection structure between the partition and the conductive sheet of this utility model;
[0028] Figure 4 This is a schematic diagram of the connection structure between the sealing cap and the second connecting block of this utility model;
[0029] Figure 5 This is a schematic diagram of the connection structure between the sealing block and the liquid level sensor of this utility model;
[0030] Figure 6 This is a schematic diagram of the connection structure between the outer shell and the inner shell of this utility model.
[0031] Reference numerals in the attached drawings: 1. Outer shell; 2. Inner shell; 3. Connecting strip; 4. Partition; 5. Conductive sheet; 6. Sealing cover; 7. Fixing structure; 701. First connecting block; 702. Insert shaft; 703. Second connecting block; 704. Nut; 8. Sealing block; 9. Protrusion; 10. Liquid level sensor; 11. Liquid inlet; 12. Protective cover; 13. Handle; 14. Mounting base; 15. Mounting groove; 16. Electrode. Detailed Implementation
[0032] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.
[0033] This application discloses a corrosion-resistant safety battery casing. (Refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A corrosion-resistant safety battery casing includes an outer casing 1, an inner casing 2 fixedly connected inside the outer casing 1, a plurality of connecting strips 3 fixedly connected to the outer casing 1, the connecting strips 3 fixedly connected to the inner casing 2, a sealing cover 6 snapped onto the top of the outer casing 1, a sealing block 8 threadedly connected to the sealing cover 6, a liquid level sensor 10 installed on the sealing block 8, and a fixing structure 7 provided on the outer casing 1.
[0034] The inner shell 2 can be made of plastic with good corrosion resistance, while the outer shell 1 can be made of high-strength metal material. Therefore, it can not only improve the internal corrosion resistance, but also the external support strength, thereby effectively improving the protection effect. By setting multiple connecting strips 3, the inner shell 2 and the outer shell 1 can be reinforced, thereby improving the overall firmness of the shell.
[0035] Reference Figure 1 and Figure 2The fixing structure 7 includes a first connecting block 701 and a insert shaft 702. A plurality of first connecting blocks 701 are fixedly connected to the outer shell 1. An insert shaft 702 is fixedly connected to the first connecting block 701. A second connecting block 703 is provided at the top of the first connecting block 701. The second connecting block 703 is fixedly connected to the sealing cover 6. The insert shaft 702 passes through the adjacent second connecting block 703. A nut 704 is threadedly connected to the insert shaft 702. The cross section of the nut 704 and the second connecting block 703 that abuts against the top of the insert shaft 702 is trapezoidal.
[0036] When it is necessary to inspect the battery components inside the inner casing 2, the nut 704 can be turned with a wrench to separate the nut 704 from the insert shaft 702. After all the nuts 704 are unscrewed from the insert shaft 702, the sealing cover 6 can be removed from the top of the outer casing 1, thereby realizing the quick disassembly of the sealing cover 6 and facilitating the inspection and maintenance of the battery components inside the inner casing 2.
[0037] Reference Figure 3 and Figure 6 The inner shell 2 has multiple partitions 4 fixedly connected inside, and multiple conductive sheets 5 are fixedly connected on the partitions 4.
[0038] Multiple partitions 4 can divide the interior of the inner casing 2 into multiple individual spaces. Each individual space can be equipped with an independent battery cell. Multiple independent battery cells can be connected in series with each other through multiple conductive sheets 5, thereby increasing the battery voltage and improving the battery's working efficiency.
[0039] Reference Figure 1 and Figure 5 Two electrodes 16 are fixedly connected to the sealing cover 6, and two handles 13 are rotatably connected to the sealing cover 6.
[0040] One electrode 16 is a positive electrode and the other is a negative electrode. External electrical devices can be connected to the two electrodes 16 to obtain power. The battery casing can be easily moved by holding the handle 13. When the handle 13 is not needed, it can be rotated toward the sealing cover 6 to store the handle 13, thereby reducing space occupation and improving space utilization efficiency.
[0041] Reference Figure 2 and Figure 6 The inner housing 2 is fixedly connected to a plurality of protective covers 12. The bottom end of the liquid level sensor 10 is located inside the protective cover 12. The sealing block 8 is fixedly connected to a plurality of protrusions 9. The plurality of protrusions 9 are arranged in a circumferential array about the middle of the sealing block 8. The sealing cover 6 is provided with a plurality of liquid filling ports 11. The sealing block 8 is located inside the liquid filling ports 11 and forms a seal on the liquid filling ports 11.
[0042] The protective cover 12 separates the liquid level sensor 10 from the battery plates inside the inner housing 2, thus protecting the liquid level sensor 10. When electrolyte needs to be added to the inner housing 2, the sealing block 8 can be unscrewed from the sealing cover 6. Multiple protrusions 9 prevent hand slippage during the unscrewing of the sealing block 8, facilitating its installation and removal. After the sealing block 8 is unscrewed, the filling port 11 will not be sealed, and electrolyte can then be added, avoiding the need to remove the sealing cover 6 for adding electrolyte, thereby effectively improving the convenience of operation.
[0043] Reference Figure 1 Multiple mounting bases 14 are fixedly connected to the bottom of the outer side of the outer shell 1, and the mounting base 14 is provided with mounting grooves 15.
[0044] The mounting base 14 is installed and fixed by multiple mounting slots 15 and bolts, thereby realizing the installation and fixation of the battery casing.
[0045] This application discloses the implementation principle of a corrosion-resistant safety battery casing as follows: Multiple mounting slots 15, combined with bolts, are used to install and fix the mounting base 14, thereby achieving the installation and fixation of the battery casing. The inner casing 2 can be made of a plastic with good corrosion resistance, while the outer casing 1 can be made of a high-strength metal material. Therefore, it not only improves the internal corrosion resistance but also enhances the external support strength, effectively improving the protective effect. Multiple connecting strips 3 are used to reinforce the relationship between the inner casing 2 and the outer casing 1, thereby improving the overall robustness of the casing. Multiple partitions 4 divide the interior of the inner casing 2 into multiple individual spaces, each of which can accommodate a... Each battery cell is an independent unit, and multiple independent battery cells can be connected in series through multiple conductive plates 5 to increase the battery voltage and improve the battery's working efficiency. Two electrodes 16, one positive and one negative, allow external electrical devices to connect to the two electrodes 16 for power extraction. The battery casing can be easily moved using a handle 13, and when not in use, the handle 13 can be rotated towards the sealing cover 6 for storage, reducing space occupation and improving space utilization efficiency. A protective cover 12 separates the liquid level sensor 10 from the battery plates inside the inner casing 2, thus providing shielding and protection for the liquid level sensor 10.When electrolyte needs to be added to the inner casing 2, the sealing block 8 can be unscrewed from the sealing cover 6. Multiple protrusions 9 prevent hand slippage during the unscrewing process, facilitating the installation and removal of the sealing block 8. After unscrewing the sealing block 8, the electrolyte filling port 11 will not be sealed, allowing for electrolyte addition without needing to remove the sealing cover 6, thus significantly improving operational convenience. When the battery components inside the inner casing 2 need to be inspected, the screw can be turned with a wrench. The nut 704 is unscrewed from the insert shaft 702, separating the nut 704 from the insert shaft 702. Once all the nuts 704 are unscrewed from the insert shaft 702, the sealing cover 6 can be removed from the top of the outer casing 1, allowing for quick disassembly of the sealing cover 6 and facilitating the inspection and maintenance of the battery components inside the inner casing 2. When the sealing cover 6 needs to be installed, it can pass through the adjacent second connecting block 703 via the insert shaft 702. Because the top section of the insert shaft 702 has a trapezoidal structure, it acts as a guide when passing through the second connecting block 703, allowing the sealing cover 6 to be removed. Nut 704 is fitted onto insert shaft 702, and nut 704 is turned with a wrench until it is tightly abutted against the second connecting block 703. When multiple nuts 704 are tightened against the second connecting block 703, the sealing cover 6 will also simultaneously abut against the outer shell 1, inner shell 2, and multiple partitions 4, effectively improving the sealing performance of the sealing cover 6 after installation. When the electrolyte inside the inner shell 2 leaks, the leaked electrolyte will flow into the cavity between the outer shell 1 and the inner shell 2, causing the electrolyte level inside the inner shell 2 to drop. This drop in electrolyte level is detected by the level sensor 10. By connecting the level sensor 10 to an alarm device, when electrolyte leakage causes a drop in level, the level sensor 10 can detect it and the alarm device will sound an alarm, reminding staff to take timely measures. Furthermore, the leaked electrolyte inside the inner shell 2 will temporarily remain between the inner shell 2 and the outer shell 1, preventing further leakage and thus avoiding serious safety accidents. Therefore, the safety of use is effectively improved.
[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A corrosion-resistant safety battery casing, comprising a casing (1), characterized in that: An inner shell (2) is fixedly connected inside the outer shell (1). Multiple connecting strips (3) are fixedly connected to the outer shell (1). The connecting strips (3) are fixedly connected to the inner shell (2). A sealing cover (6) is snapped onto the top of the outer shell (1). A sealing block (8) is threaded onto the sealing cover (6). A liquid level sensor (10) is installed on the sealing block (8). A fixing structure (7) is provided on the outer shell (1).
2. The corrosion-resistant safety battery casing according to claim 1, characterized in that: Multiple protrusions (9) are fixedly connected to the sealing block (8), and the multiple protrusions (9) are arranged in a circumferential array about the middle of the sealing block (8).
3. The corrosion-resistant safety battery casing according to claim 2, characterized in that: The fixing structure (7) includes a first connecting block (701) and a plug shaft (702). A plurality of first connecting blocks (701) are fixedly connected to the outer shell (1). A plug shaft (702) is fixedly connected to the first connecting block (701). A second connecting block (703) is provided at the top of the first connecting block (701). The second connecting block (703) is fixedly connected to the sealing cover (6). The plug shaft (702) passes through the adjacent second connecting block (703). A nut (704) is threadedly connected to the plug shaft (702). The cross section between the nut (704) and the second connecting block (703) that abuts against the top of the plug shaft (702) is trapezoidal.
4. The corrosion-resistant safety battery casing according to claim 1, characterized in that: The inner shell (2) has multiple partitions (4) fixedly connected inside, and multiple conductive sheets (5) are fixedly connected on the partitions (4).
5. The corrosion-resistant safety battery casing according to claim 1, characterized in that: Two electrodes (16) are fixedly connected to the sealing cover (6), and two handles (13) are rotatably connected to the sealing cover (6).
6. The corrosion-resistant safety battery casing according to claim 1, characterized in that: Multiple protective covers (12) are fixedly connected inside the inner housing (2), and the bottom end of the liquid level sensor (10) is located inside the protective cover (12).
7. The corrosion-resistant safety battery casing according to claim 1, characterized in that: The sealing cap (6) is provided with multiple liquid inlets (11), and the sealing block (8) is located inside the liquid inlets (11) and forms a seal on the liquid inlets (11).
8. The corrosion-resistant safety battery casing according to claim 1, characterized in that: Multiple mounting bases (14) are fixedly connected to the bottom of the outer side of the outer shell (1), and the mounting bases (14) are provided with mounting grooves (15).