A lithium battery pack with impact protection

Abstract

This utility model relates to the fields of scientific research and materials, and discloses a lithium battery pack with impact protection, including a shell. Two grooves are provided on one side of the top of the shell, and hinges are rotatably connected to each groove. A protective plate is fixedly connected to the outside of each hinge, and a locking section is fixedly connected to the bottom of the protective plate. An insertion port is provided inside the locking section, and a locking post is rotatably connected to the bottom of the shell. In this utility model, when the locking post passes through the insertion port of the locking section, the protective plate is locked and unlocked by rotating the locking post. Flipping the protective plate causes the hinges to rotate, allowing the protective plate to flip around the hinges as a fulcrum. Normally, the protective plate fits snugly against the shell to form basic protection; upon impact, it flips and reinforces, forming a double barrier, significantly improving impact resistance and effectively reducing the risk of battery compression and puncture. The protective plate does not occupy extra space when normally stored, and the flip design facilitates battery pack maintenance and controls overall size and weight.

Description

Technical Field

[0001] This utility model relates to the fields of scientific research and materials, and in particular to a lithium battery pack with impact protection. Background Technology

[0002] Collision-protected lithium battery packs address the shortcomings of traditional lithium battery packs in terms of collision protection. Through optimized structural design, the use of high-strength protective materials, and integrated collision sensing and power-off protection mechanisms, these battery components are specifically designed to enhance resistance to physical forces such as collisions and impacts. They effectively reduce the risks of battery damage, short circuits, and fires during collisions and are widely used in scenarios with high safety requirements, such as electric vehicles and drones.

[0003] Currently used traditional lithium battery packs lack a protective structure specifically designed for impact. When lithium battery packs are subjected to external impacts, the batteries are easily squeezed or punctured, which may lead to safety issues such as battery leakage, short circuits, or even fire and explosion. They cannot meet the requirements of application scenarios with high impact protection.

[0004] Currently used traditional lithium batteries lack a dedicated multi-layered buffer structure and rely solely on the strength of the outer casing to resist impacts. This results in the impact force being directly transmitted to the battery, causing problems such as battery compression and deformation.

[0005] To address this issue, a lithium battery pack with impact protection is proposed. Utility Model Content

[0006] To overcome the above deficiencies, this utility model provides a lithium battery pack with collision protection, which aims to improve the problems of lack of protection and lack of buffer structure in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A lithium battery pack with impact protection includes a housing. Two grooves are provided on the top side of the outer surface of the housing. A hinge is rotatably connected to each groove. A protective plate is fixedly connected to the outside of the hinge. A locking section is fixedly connected to the bottom of the protective plate. An insertion port is provided inside the locking section. A locking post is rotatably connected to the bottom side of the housing. Multiple shock-absorbing components are provided inside the housing.

[0009] As a further description of the above technical solution:

[0010] The shock absorption assembly includes the outer plate, which is fixedly connected to the inner side of the outer shell. The outer plate is fixedly connected to the outer side of the outer plate, and the other end of the spring is fixedly connected to the elastic metal sheet. The outer side of the elastic metal sheet abuts against the battery template.

[0011] As a further description of the above technical solution:

[0012] The battery template contains multiple batteries, and each battery has an electrical connector fixedly connected to its top.

[0013] As a further description of the above technical solution:

[0014] The bottom of the outer casing is fixedly connected to a plurality of connectors, all of which abut against the bottom of the battery.

[0015] As a further description of the above technical solution:

[0016] The liquid cooling plate is fixedly connected to both sides of the outer shell. The outer wall of the liquid cooling plate is provided with four fixing holes, and the reinforcing nail is fixedly connected to each fixing hole of the liquid cooling plate.

[0017] As a further description of the above technical solution:

[0018] Two transmission plates are fixedly connected to the bottom of the outer casing, and each transmission plate is fixedly connected to the transmission line.

[0019] As a further description of the above technical solution:

[0020] The input plug is fixedly connected to the top of the housing.

[0021] As a further description of the above technical solution:

[0022] The output plug is fixedly connected to the top of the housing.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, through the cooperation of the outer shell, hinge, protective plate, locking section, locking post and internal shock absorption components, basic protection is formed under normal conditions without taking up extra space. When a collision occurs, the protective plate can be flipped to form a double barrier to enhance impact resistance. It is also easy to maintain and conducive to controlling the overall volume and weight.

[0025] 2. In this utility model, the combination of the outer plate, spring, and elastic metal sheet effectively buffers the impact force generated by external collisions. The elastic deformation of the spring and the toughness of the elastic metal sheet can absorb and disperse the impact energy, reduce the direct force on the battery template and internal battery, further reduce the risk of battery being squeezed and damaged, and strengthen the battery pack's anti-collision protection capability from the inside. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a lithium battery pack with collision protection proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of a protective plate for a lithium battery pack with collision protection proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of an elastic metal sheet for a lithium battery pack with collision protection proposed in this utility model.

[0029] Figure 4 A left view of a lithium battery pack with collision protection proposed in this utility model;

[0030] Figure 5 This utility model presents a top view of a lithium battery pack with collision protection.

[0031] Legend:

[0032] 1. Outer shell; 2. Hinge; 3. Protective plate; 4. Locking section; 5. Locking post; 6. Outer panel; 7. Spring; 8. Elastic metal sheet; 9. Battery template; 10. Battery; 11. Electrical connector; 12. Connector; 13. Liquid cooling plate; 14. Reinforcing nail; 15. Transmission plate; 16. Transmission line; 17. Input plug; 18. Output plug. Detailed Implementation

[0033] 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.

[0034] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a lithium battery pack with collision protection, including a shell 1 as a basic frame for mounting hinges 2, a protective plate 3, shock-absorbing components, and other structures. Two grooves are provided on the top side of the outer shell 1, and hinges 2 are rotatably connected to each groove, connecting the shell 1 and the protective plate 3 and providing a fulcrum for the protective plate 3. The protective plate 3 is fixedly connected to the outside of the hinges 2, forming basic protection against the shell 1 under normal conditions, and flipping over during a collision to form a double barrier with the shell 1. A locking section 4 is fixedly connected to the bottom of the protective plate 3, which, through an internal through-hole and a locking post 5, locks and unlocks the protective plate 3. An through-hole is provided inside the locking section 4, and a locking post 5 is rotatably connected to the bottom side of the shell 1, passing through the through-hole of the locking section 4 and rotating to lock or unlock the protective plate 3. Multiple shock-absorbing components are provided inside the shell 1.

[0035] Reference Figure 1 and Figure 3 The shock absorption assembly includes an outer plate 6, which is fixed to the inside of the outer shell 1 to provide a mounting base for the spring 7. The outer plate 6 is fixedly connected to the inside of the outer shell 1, and the spring 7 is fixedly connected to the outside of the outer plate 6. The outer plate 6 is connected to the elastic metal sheet 8, which buffers the impact force through elastic deformation. The other end of the spring 7 is fixedly connected to the elastic metal sheet 8, which is connected to the spring 7 and abuts against the battery template 9 to assist in buffering the impact. The outer side of the elastic metal sheet 8 abuts against the battery template 9, and the battery 10 is installed inside, providing installation space for the battery 10.

[0036] Reference Figure 1 , Figure 4 and Figure 5 The battery module 9 houses multiple batteries 10, with electrical connectors 11 at the top and connectors 12 at the bottom. It is the core component for energy storage. Each battery 10 has an electrical connector 11 fixedly connected to its top for circuit connection. Multiple connectors 12 are fixedly connected to the bottom of the outer casing 1, abutting against the bottom of the batteries 10 to assist in circuit connection. Each connector 12 abuts against the bottom of the batteries 10. Liquid cooling plates 13 are fixedly connected to both sides of the outer casing 1, secured by reinforcing nails 14, for heat dissipation of the battery pack. The outer wall of the liquid cooling plate 13 has four... The mounting ports of the liquid cooling plate 13 are all fixedly connected with reinforcing nails 14, which are fixed in the mounting ports of the liquid cooling plate 13 to enhance the connection stability between the liquid cooling plate 13 and the outer shell 1. Two transmission plates 15 are fixedly connected to the bottom of the outer shell 1 and connected to transmission lines 16 for power transmission. Each transmission plate 15 is fixedly connected to a transmission line 16 for power transmission. An input plug 17 is fixedly connected to the top of the outer shell 1 for external power input to the battery pack. An output plug 18 is fixedly connected to the top of the outer shell 1 for the battery pack to output power.

[0037] Working principle: Under normal conditions, the protective plate 3 is attached to the surface of the outer shell 1 via the hinge 2. At this time, the locking pin 5 passes through the insertion port of the locking section 4 and rotates to lock the protective plate 3, forming a basic protective structure together with the outer shell 1 without occupying additional space. When a collision occurs, the locking pin 5 can be unlocked, and the protective plate 3 can be flipped to rotate the hinge 2, causing the protective plate 3 to flip with the hinge 2 as a fulcrum, forming a double barrier with the outer shell 1, greatly improving the impact resistance and reducing the risk of the battery being squeezed or punctured. At the same time, multiple shock-absorbing components inside the outer shell 1 play a buffering role. The outer plate 6 is fixed to the inside of the outer shell 1, and its outer spring 7 is connected to the elastic metal sheet 8, which abuts against the battery template 9. When subjected to external impact force, the spring 7 undergoes elastic deformation, and the elastic metal sheet 8, with its own toughness, absorbs and disperses the impact energy, reducing the direct force on the battery template 9 and the internal batteries 10, further strengthening the impact protection. The multiple batteries 10 inside the battery template 9 are electrically connected through the electrical connector 11 at the top and the connector 12 at the bottom of the outer shell 1. The input plug 17 on the top of the casing 1 is used to input external electrical energy into the battery 10 to complete charging; the output plug 18 is used for the battery 10 to output electrical energy. The transmission of electrical energy can also be carried out through the transmission plate 15 at the bottom of the casing 1 and the transmission line 16 connected to it. In addition, the liquid cooling plates 13 on both sides of the casing 1 are fixed by reinforcing nails 14, which can dissipate heat from the battery pack, ensure that the battery pack operates at a suitable temperature, and improve overall performance and safety. When the battery pack needs to be repaired, simply unlock the latch 5 and flip the protective plate 3. The operation is convenient, and the flip design also helps to control the overall size and weight.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A lithium battery pack with crash protection comprising a housing (1), characterized in that: Two grooves are provided on the top side of the outer shell (1). A hinge (2) is rotatably connected to each groove of the outer shell (1). A protective plate (3) is fixedly connected to the outside of the hinge (2). A locking section (4) is fixedly connected to the bottom of the protective plate (3). An insertion port is provided inside the locking section (4). A locking post (5) is rotatably connected to the bottom side of the outer shell (1). Multiple shock-absorbing components are provided inside the outer shell (1).

2. The lithium battery pack with impact protection of claim 1, wherein: The shock-absorbing assembly includes an outer plate (6), which is fixedly connected to the inner side of the outer shell (1). A spring (7) is fixedly connected to the outer side of the outer plate (6), and an elastic metal sheet (8) is fixedly connected to the other end of the spring (7). A battery template (9) is abutted against the outer side of the elastic metal sheet (8).

3. A lithium battery pack with impact protection according to claim 2, characterized in that: The battery template (9) contains multiple batteries (10), and each battery (10) has an electrical connector (11) fixedly connected to its top.

4. The lithium battery pack with impact protection of claim 1, wherein: The bottom of the outer casing (1) is fixedly connected to a plurality of connectors (12), and the connectors (12) all abut against the bottom of the battery (10).

5. The lithium battery pack with impact protection of claim 1, wherein: Liquid cooling plates (13) are fixedly connected to both sides of the outer shell (1). The outer wall of the liquid cooling plate (13) is provided with four fixing holes, and reinforcing nails (14) are fixedly connected to the fixing holes of the liquid cooling plate (13).

6. The lithium battery pack with impact protection of claim 1, wherein: The bottom of the outer shell (1) is fixedly connected to two transmission plates (15), and each transmission plate (15) is fixedly connected to a transmission line (16).

7. The lithium battery pack with impact protection of claim 1, wherein: An input plug (17) is fixedly connected to the top of the outer casing (1).

8. The lithium battery pack with impact protection of claim 1, wherein: An output plug (18) is fixedly connected to the top of the outer casing (1).

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