Novel portable lithium battery

By introducing a rubber pad and protective plate buffer structure into the portable lithium battery, combined with a conductive plate and quick-sealing design, the performance and safety issues of the battery under mechanical shock and expansion are solved, improving the battery's reliability and ease of maintenance.

CN223797449UActive Publication Date: 2026-01-13JINAN DAQIN ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Application Number
CN202423242339.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2026-01-13
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

Existing portable lithium batteries are susceptible to external impacts and vibrations during transportation, carrying, and use. The battery cell modules may be squeezed when they expand, and traditional connection methods are complex, affecting performance and safety, and making maintenance difficult.

Method used

A novel portable lithium battery, comprising a box structure and a cover structure, was designed. Rubber pads and protective plates are used to buffer external impacts, conductive plates and connectors are used to connect electrical energy, and the cover structure is quickly connected and disassembled through a pull plate, clamp, slide bar and compression spring.

Benefits of technology

It effectively protects battery cell modules from mechanical shock, extends service life, improves the safety and stability of electrical systems, simplifies the maintenance process, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel portable lithium battery which comprises a box body structure, and the inner wall of the box body structure is in sliding connection with the outer wall of a sealing cover structure; the utility model relates to the technical field of portable batteries, the device provides reliable buffering for the battery cell module through the box body structure, the sealing cover structure and the rubber pad on the inner wall of the battery jar, and meanwhile, the protection plate connected with the outer wall of the rubber pad surrounds the battery cell module from four sides, so that the battery cell module is protected from being damaged. When the battery cell module expands due to heating and the like in the use process, the protection plate can move outwards, extrusion to the battery cell module is avoided, the arrangement of the wire arrangement groove effectively arranges wires connecting the current-conducting plate and the connector assembly, the electrical fault risk possibly caused by disordered winding of the wires is reduced, and the service life of the battery cell module is prolonged. Through cooperative work of the pulling plate, the clamping block, the sliding rod, the limiting plate and the compression spring, tight connection and quick disassembly of the sealing cover structure and the box body structure are achieved, the maintenance difficulty and time cost are reduced, and the maintainability of the battery is improved.
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Description

Technical Field

[0001] This utility model relates to the field of portable battery technology, specifically to a novel portable lithium battery. Background Technology

[0002] With the rapid development of modern technology, various portable power tools have been widely used in people's lives and work. The normal operation of these devices is highly dependent on efficient, reliable and portable power supply. Lithium batteries have become the mainstream choice in the field of portable power supply due to their many advantages such as high energy density, long cycle life and low self-discharge rate.

[0003] However, in the current use of portable lithium batteries, the cell module, as the core component of the lithium battery, is extremely susceptible to external impacts, vibrations, and other mechanical forces during transportation, carrying, and use, which can affect the battery's performance and lifespan. Moreover, when the cell module is working, the internal electrochemical reaction generates heat, causing the cell to expand. Without a reasonable structural design to cope with this expansion, the cell module may be squeezed, which will not only reduce its performance but may also cause safety hazards. In addition, traditional connection methods require a complex disassembly process when the battery needs maintenance or replacement of internal components, which consumes a lot of manpower and time, reducing the battery's maintainability and usage efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: a novel portable lithium battery, comprising: a housing structure, wherein the inner wall of the housing structure is slidably connected to the outer wall of the cover structure; the housing structure includes an outer shell, wherein battery slots are symmetrically formed on the outer wall of the outer shell, cable management slots are formed on the outer wall of the outer shell, handle slots are formed on the outer wall of the outer shell, clamping slots are symmetrically formed on the outer wall of the side of the outer shell, a rubber pad is fixedly connected to the inner wall of the battery slot, a protective plate is fixedly connected to the outer wall of the rubber pad, a battery cell module is fixedly connected to the inner wall of the battery slot, a conductive plate is fixedly connected to the outer wall of the battery cell module, and a connector is fixedly connected to the outer wall of the bottom of the outer shell.

[0005] Preferably, the rubber pads are arranged in an array along the inner wall of the battery compartment, and the protective plates are arranged in an array along the outer walls of the four sides of the cell module. The outer walls of the protective plates are in contact with the outer walls of the cell module. The rubber pads serve as a buffer on the one hand, and on the other hand, when the cell module is put into use, it will expand during use, and the protective plates will move outward during its expansion. This mechanism will not cause compression to the cell module.

[0006] Preferably, the conductive plate is connected to the connector via wires, the cable management groove is located above the battery compartment, and the handle groove is located above the cable management groove. The electrical energy generated by the battery cell module is conducted through the conductive plate fixedly connected to its outer wall. The conductive plate is then connected to the connector fixedly connected to the bottom outer wall of the casing via wires, thereby realizing the output of electrical energy. The cable management groove facilitates the organization and storage of wires, etc.

[0007] Preferably, the sealing structure includes a cover plate, a sealing gasket is fixedly connected to the inner wall of the cover plate, clamping blocks are symmetrically slidably connected to the inner wall of the side of the cover plate, a pull plate is fixedly connected to the outer wall of the clamping blocks, a sliding rod is symmetrically slidably connected to the inner wall of the pull plate, a limiting plate is fixedly connected to the outer wall of the sliding rod, and a compression spring is fixedly connected to the outer wall of the limiting plate.

[0008] Preferably, the outer wall of the compression spring on the side away from the limiting plate is fixedly connected to the outer wall of the pull plate, and the outer wall of the slide rod on the side away from the limiting plate is fixedly connected to the outer wall of the cover plate side. When the pull plate is pulled, the pull plate causes the clamping block to slide outward along the slide rod. Because the pull plate is close to the limiting plate, the compression spring is compressed.

[0009] Preferably, the outer wall of the outer shell side is slidably connected to the inner wall of the cover side, and the outer wall of the outer shell is in contact with the outer wall of the sealing gasket, which can play a good sealing role. The inner wall of the clamping groove is slidably connected to the outer wall of the clamping block. When the cover is placed on the outer shell, the clamping block is aligned with the clamping groove, the pull plate is released, and under the elastic force of the compression spring, the clamping block slides into the clamping groove, realizing a tight connection between the cover structure and the box structure.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model, through the design of a box structure, provides reliable cushioning for the battery cell module with rubber pads on the inner wall of the battery compartment, effectively resisting mechanical impacts such as external collisions and vibrations. Simultaneously, protective plates connected to the outer wall of the rubber pads surround the battery cell module from all four sides, firmly fixing it in place when the battery cell is not in use, preventing it from shaking or shifting internally. During use, when the battery cell module expands due to heat or other reasons, the protective plates can shift outwards, avoiding compression of the battery cell module, thus significantly extending its service life. The cable management channels effectively organize the wires connecting the conductive plates and connectors, resulting in a neat and orderly internal wiring layout. This not only reduces the risk of electrical faults such as short circuits and open circuits caused by messy and tangled wiring, but also improves the safety and stability of the battery's internal electrical system.

[0012] 2. This utility model features a cleverly designed sealing structure that seamlessly connects the sealing structure to the box structure. Through the coordinated operation of a pull plate, clamping block, sliding rod, limiting plate, and compression spring, a tight connection and quick disassembly between the sealing structure and the box structure are achieved. During installation, a simple pull and release operation secures the sealing cover, ensuring the battery's internal sealing. Similarly, when maintenance, repair, or replacement of battery modules is required, pulling the pull plate easily separates the clamping block from the clamping groove, allowing for easy opening of the cover. This significantly reduces maintenance difficulty and time costs, improves battery maintainability, and helps extend the overall battery lifespan. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a structural schematic diagram of the box structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the battery cell module of this utility model;

[0016] Figure 4 This is a schematic diagram of the sealing structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the sealing gasket of this utility model;

[0018] Figure 6 This is a utility model Figure 5 A schematic diagram of the structure at point A.

[0019] In the diagram: 1. Box structure; 11. Outer shell; 12. Battery slot; 13. Cable management slot; 14. Handle slot; 15. Clamping slot; 16. Rubber pad; 17. Protective plate; 18. Battery cell module; 19. Conductive plate; 191. Connector; 2. Cover structure; 21. Cover plate; 22. Sealing gasket; 23. Clamping block; 24. Pull plate; 25. Slide rod; 26. Limiting plate; 27. Compression spring. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example

[0021] Please see Figure 1 - Figure 6 This utility model provides a technical solution: a novel portable lithium battery, comprising: a box structure 1, the inner wall of the box structure 1 being slidably connected to the outer wall of the cover structure 2; the box structure 1 includes an outer shell 11, battery slots 12 symmetrically formed on the outer wall of the outer shell 11, cable management slots 13 formed on the outer wall of the outer shell 11, handle slots 14 formed on the outer wall of the outer shell 11, clamping slots 15 symmetrically formed on the outer wall of the side of the outer shell 11, a rubber pad 16 fixedly connected to the inner wall of the battery slot 12, a protective plate 17 fixedly connected to the outer wall of the rubber pad 16, a cell module 18 fixedly connected to the inner wall of the battery slot 12, a conductive plate 19 fixedly connected to the outer wall of the cell module 18, and a connector 191 fixedly connected to the outer wall of the bottom of the outer shell 11.

[0022] Rubber pads 16 are arranged in an array along the inner wall of the battery compartment 12, and protective plates 17 are arranged in an array along the outer walls of the four sides of the cell module 18. The outer wall of the protective plate 17 is in contact with the outer wall of the cell module 18. The rubber pads 16 serve as a buffer on the one hand, and on the other hand, when the cell module 18 is put into use, it will expand during use, and the protective plate 17 will move outward during its expansion. This mechanism will not cause compression to the cell module 18.

[0023] The conductive plate 19 is connected to the connector 191 via wires. The cable management channel 13 is located above the battery slot 12, and the handle slot 14 is located above the cable management channel 13. The electrical energy generated by the battery cell module 18 is conducted through the conductive plate 19 fixedly connected to its outer wall. The conductive plate 19 is then connected to the connector 191 fixedly connected to the bottom outer wall of the outer casing 11 via wires, thereby realizing the output of electrical energy. The cable management channel 13 facilitates the organization and storage of wires, etc.

[0024] The sealing structure 2 includes a cover plate 21, a sealing gasket 22 is fixedly connected to the inner wall of the cover plate 21, a clamping block 23 is symmetrically slidably connected to the inner wall of the side of the cover plate 21, a pull plate 24 is fixedly connected to the outer wall of the clamping block 23, a slide rod 25 is symmetrically slidably connected to the inner wall of the pull plate 24, a limit plate 26 is fixedly connected to the outer wall of the slide rod 25, and a compression spring 27 is fixedly connected to the outer wall of the limit plate 26.

[0025] The outer wall of the compression spring 27 on the side away from the limiting plate 26 is fixedly connected to the outer wall of the pull plate 24. The outer wall of the slide rod 25 on the side away from the limiting plate 26 is fixedly connected to the outer wall of the side of the cover plate 21. Pulling the pull plate 24 causes the clamping block 23 to slide outward along the slide rod 25. Because the pull plate 24 is close to the limiting plate 26, the compression spring 27 is compressed.

[0026] The outer wall of the outer shell 11 is slidably connected to the inner wall of the cover plate 21. The outer wall of the outer shell 11 is in contact with the outer wall of the sealing gasket 22, which can play a good sealing role. The inner wall of the clamping groove 15 is slidably connected to the outer wall of the clamping block 23. When the cover plate 21 is placed on the outer shell 11, the clamping block 23 is aligned with the clamping groove 15, the pull plate 24 is released, and under the elastic force of the compression spring 27, the clamping block 23 slides into the clamping groove 15, realizing a tight connection between the cover structure 2 and the box structure 1.

[0027] Working principle: The battery cell module 18, as the core component for generating electrical energy, is placed inside the battery compartment 12. A rubber pad 16 is fixedly connected to the inner wall of the battery compartment 12. The rubber pad 16 serves as a buffer to protect the battery cell module 18 from external impacts. On the other hand, a protective plate 17 is fixedly connected to its outer wall, arranged in an array along the four sides of the outer wall of the battery cell module 18 and in contact with the outer wall of the battery cell module 18. When the battery cell is not in use, the internal protective plate 17 will fix the battery cell module 18. When the battery cell module 18 is put into use, it will expand during use. The protective plate 17 will move outward during its expansion. This mechanism will not squeeze the battery cell module 18, thereby improving the service life of the battery cell module 18 during use and ensuring that the battery cell module 18 can work stably.

[0028] The electrical energy generated by the battery cell module 18 is conducted through the conductive plate 19 fixedly connected to its outer wall. The conductive plate 19 is then connected to the connector 191 fixedly connected to the bottom outer wall of the housing 11 through wires. The connector 191 can be connected to external electrical equipment, thereby realizing the output of electrical energy and providing power support for external equipment.

[0029] The outer wall of the outer casing 11 is symmetrically provided with battery slots 12 for placing the battery cell module 18, and a cable management slot 13 is provided to facilitate the organization and storage of wires and other components connecting the conductive plate 19 and the connector 191, making the internal circuit layout more orderly and reducing the potential risks caused by messy circuits. The handle slot 14 is located above the cable management slot 13, making it easy for users to pick up and carry the lithium battery, which is in line with the portable design concept.

[0030] When installing the cover structure 2, pull the pull plate 24 outward. The pull plate 24 drives the clamping block 23 to slide outward along the slide rod 25. Because the pull plate 24 is close to the limiting plate 26, the compression spring 27 is compressed. After the cover plate 21 is placed on the outer shell 11, align the clamping block 23 with the clamping groove 15 and release the pull plate 24. Under the elastic force of the compression spring 27, the clamping block 23 slides into the clamping groove 15, realizing a tight connection between the cover structure 2 and the box structure 1. At the same time, the outer wall of the outer shell 11 contacts the outer wall of the sealing gasket 22, which can play a good sealing role and prevent dust, moisture and other external substances from entering the box and causing adverse effects on the battery module 18 and internal circuits. Conversely, when disassembly and maintenance are required, pull the pull plate 24 to separate the clamping block 23 from the clamping groove 15, and the cover plate 21 can be removed from the outer shell 11 and opened.

[0031] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A new portable lithium battery characterized in that, Include: Box structure (1), the inner wall of the box structure (1) is slidably connected with the outer wall of the cover structure (2); The outer wall of the outer shell (11) is symmetrically provided with a battery slot (12), the outer wall of the outer shell (11) is provided with a wire arrangement groove (13), the outer wall of the outer shell (11) is provided with a handle groove (14), the outer wall of the outer shell (11) is symmetrically provided with a clamping groove (15), the inner wall of the battery slot (12) is fixedly connected with a rubber pad (16), the outer wall of the rubber pad (16) is fixedly connected with a protective plate (17), the inner wall of the battery slot (12) is fixedly connected with a battery cell module (18), the outer wall of the battery cell module (18) is fixedly connected with a conductive plate (19), and the outer wall of the bottom of the outer shell (11) is fixedly connected with a connector (191).

2. A new portable lithium battery according to claim 1 characterized by: The rubber pad (16) is arranged along the inner wall of the battery slot (12), the protective plate (17) is arranged along the outer wall of the four sides of the battery cell module (18), and the outer wall of the protective plate (17) is in contact with the outer wall of the battery cell module (18).

3. A new portable lithium battery according to claim 1 characterized by: The conductive plate (19) is connected with the connector (191) through a wire, the wire arrangement groove (13) is arranged above the battery slot (12), and the handle groove (14) is arranged above the wire arrangement groove (13).

4. A new portable lithium battery according to claim 1 characterized by: The cover structure (2) comprises a cover plate (21), the inner wall of the cover plate (21) is fixedly connected with a sealing gasket (22), the inner wall of the side of the cover plate (21) is symmetrically slidably connected with a clamping block (23), the outer wall of the clamping block (23) is fixedly connected with a pull plate (24), the inner wall of the pull plate (24) is symmetrically slidably connected with a slide rod (25), the outer wall of the slide rod (25) is fixedly connected with a limiting plate (26), and the outer wall of the limiting plate (26) is fixedly connected with a compression spring (27).

5. A new portable lithium battery according to claim 4 characterized by: The outer wall of the side of the outer shell (11) is slidably connected with the inner wall of the side of the cover plate (21), the outer wall of the outer shell (11) is in contact with the outer wall of the sealing gasket (22), and the inner wall of the clamping groove (15) is slidably connected with the outer wall of the clamping block (23).

6. A new portable lithium battery according to claim 1 characterized by: ​