Lithium polymer battery protection structure

Abstract

The utility model provides a lithium polymer battery protection structure, which relates to the technical field of polymer lithium batteries and comprises a protection shell, a cover plate is fixedly mounted on the top surface of the protection shell, a battery body is mounted on the inner wall of the protection shell, and a threaded rod and a sliding rod are arranged on the surface of the protection shell in a penetrating manner. And one end of the threaded rod is rotationally connected with a connecting plate, heat dissipation fins are fixedly installed on the surface of the connecting plate, and a check block is fixedly installed at one end of the sliding rod. Heat generated when the battery body works is effectively conducted to the heat dissipation fins through the connecting plate, the heat dissipation area is increased, the heat dissipation efficiency of the battery is improved, overheating of the battery is avoided, the performance of the battery is maintained, the service life of the battery is prolonged, meanwhile, when the battery is not used, the heat dissipation fins can be contained in the protective shell, and the service life of the battery is prolonged. In this way, the radiating fins can be effectively prevented from being damaged due to exposure, the robustness and durability of the whole structure are enhanced, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of polymer lithium batteries, in particular to a lithium polymer battery protection structure. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain metallic lithium and are rechargeable. With the development of science and technology, lithium batteries have become mainstream.

[0003] Publication No. CN217239537U discloses a polymer lithium battery with a heat insulation protection structure, comprising a lower protective cover and an upper protective cover, the upper protective cover and the lower protective cover are fixedly connected by a fixing structure, the upper protective cover and the lower protective cover are both provided with an internal space, the internal space is filled with a coolant, an upper heat insulation cover is provided on the upper protective cover, a lower heat insulation cover is provided on the lower protective cover, a heat insulation board is fixedly installed on the bottom surface of the lower protective cover, a battery body is provided on the upper surface of the heat insulation board, the battery body is supported by a spring-pressing structure in the upper protective cover, the internal space is filled with coolant by setting the internal space, and good heat dissipation effect is achieved, at the same time, an upper heat insulation cover and a lower heat insulation cover are respectively provided on the upper protective cover and the lower protective cover, which have a strong blocking effect on external heat, at the same time, the battery body is provided on the heat insulation board inside the lower protective cover, and the triple cooperation of the heat insulation cover, the coolant and the heat insulation board has a good heat insulation effect. However, this type of polymer lithium battery cannot effectively conduct and dissipate the heat generated when the battery is working, causing the battery to overheat easily, thereby affecting the performance and service life of the battery. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0005] The utility model adopts the following technical scheme: a lithium polymer battery protection structure, comprising a protective shell, a cover plate is fixedly installed on the top surface of the protective shell, a battery body is installed on the inner wall of the protective shell, a threaded rod and a sliding rod are penetrated through the surface of the protective shell, one end of the threaded rod is rotatably connected to a connecting plate, a heat dissipation fin is fixedly installed on the surface of the connecting plate, and a stopper is fixedly installed on one end of the sliding rod.

[0006] Preferably, a side handle is fixedly mounted on the side of the protective shell, and the material of the side handle is austenitic stainless steel. Here, the utility model can be conveniently carried.

[0007] Preferably, the interior of the protective shell is provided with threads, and the threads are engaged with the threaded rod.

[0008] Preferably, the slide bar is slidably connected to the protective shell, and the slide bar is fixedly connected to the connecting plate.

[0009] Preferably, one end of the threaded rod is provided with a hexagonal groove, and the heat dissipation fins are arranged at equal distances on the surface of the connecting plate. Here, the threaded rod can be easily twisted.

[0010] Preferably, the side of the protective shell is provided with a heat conduction mechanism, the heat conduction mechanism includes a through groove, the through groove is opened on the side of the protective shell, an insert block is inserted into the inner wall of the through groove, a heat conductive silicone pad is fixedly installed on the side of the insert block, a connection block is fixedly installed on the surface of the insert block, a screw hole is opened on the side of the protective shell, and a limit bolt is inserted on the surface of the connection block. Here, the heat conduction effect can be improved.

[0011] Preferably, the limiting bolt and the screw hole are of the same size, and a thread is provided inside the connecting block, and the thread is meshed with the limiting bolt.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. The utility model effectively conducts the heat generated by the battery body during operation to the heat dissipation fins through the connecting plate, thereby increasing the heat dissipation area and improving the heat dissipation efficiency of the battery, which helps to avoid overheating of the battery, thereby maintaining the performance of the battery and extending its service life. At the same time, when not in use, the heat dissipation fins can be retracted into the protective shell, which can effectively prevent the heat dissipation fins from being damaged due to exposure, thereby enhancing the robustness and durability of the overall structure and having high practicality.

[0014] 2. The thermally conductive silicone pad design in the utility model enables it to fit tightly against the battery body and the connecting plate, effectively improving the heat conduction efficiency, thereby improving the heat dissipation effect. The installation can be completed by simply aligning the plug block and inserting it through the slot, and then fixing it with the limit bolt. This installation method greatly simplifies the installation steps, improves work efficiency, simplifies the installation and disassembly process, and reduces labor costs and time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a lithium polymer battery protection structure is provided for the utility model;

[0016] Figure 2 A lithium polymer battery protection structure is proposed for this utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3A cross-sectional view of a lithium polymer battery protection structure proposed by the utility model;

[0018] Figure 4 An exploded diagram of a heat conduction mechanism in a lithium polymer battery protection structure is proposed for the utility model;

[0019] Figure 5 A top view of a lithium polymer battery protection structure is proposed for the utility model;

[0020] Figure 6 A lithium polymer battery protection structure is proposed for this utility model Figure 5 Enlarged view of point B in the middle.

[0021] Legend:

[0022] 1. Protective shell; 2. Cover plate; 3. Battery body; 4. Threaded rod; 5. Slide rod; 6. Connecting plate; 7. Heat dissipation fins; 8. Block; 9. Side handle; 10. Hexagonal slot; 11. Through slot; 12. Insert block; 13. Thermal conductive silicone pad; 14. Connecting block; 15. Screw hole; 16. Limit bolt. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0025] Embodiment 1

[0026] See also Figure 1-6The utility model provides a technical solution: a lithium polymer battery protection structure, including a protective shell 1. The top surface of the protective shell 1 is fixedly installed with a cover plate 2 by welding or screw fastening, and the cover plate 2 can effectively close the protective shell 1 to prevent the internal components from being damaged by the outside. On the inner wall of the protective shell 1, a battery body 3 is installed, and the battery body 3 is the core part of the overall structure and is responsible for storing and providing electrical energy. In order to enhance the protection and heat dissipation performance of the battery, a threaded rod 4 and a sliding rod 5 are provided on the surface of the protective shell 1. Among them, the threaded rod 4 is engaged with the thread opened inside the protective shell 1, so that the threaded rod 4 can perform precise linear motion inside the protective shell 1. Not only is the structure stable, but it is also easy to adjust. One end of the threaded rod 4 is rotatably connected to the connecting plate 6 through a bearing, so that when the threaded rod 4 rotates, the connecting plate 6 can move accordingly without rotating due to the rotation of the threaded rod 4. The sliding rod 5 is slidably connected to the protective shell 1 through the cooperation of the slider and the slide groove, ensuring the stability and accuracy of the sliding. At the same time, the other end of the slide bar 5 is fixedly connected to the connecting plate 6, further enhancing the stability of the overall structure. The surface of the connecting plate 6 is fixedly mounted with heat dissipation fins 7, which greatly increase the heat dissipation area and effectively improve the heat dissipation efficiency of the battery.

[0027] See also Figure 1-6 A hexagonal groove 10 is provided at one end of the threaded rod 4. This design allows the staff to use tools to easily twist the threaded rod 4 for quick adjustment. The heat dissipation fins 7 are arranged at equal distances on the surface of the connecting plate 6 to ensure uniform heat dissipation. A stopper 8 is also fixedly installed at one end of the slide rod 5. This stopper 8 can effectively prevent the slide rod 5 from escaping from the protective shell 1, thereby enhancing the safety of the structure. In order to facilitate transportation and installation, a side handle 9 is also fixedly installed on the side of the protective shell 1. The material of the side handle 9 is austenitic stainless steel, which is not only strong and durable, but also has excellent corrosion resistance.

[0028] Embodiment 2

[0029] See also Figure 4, a heat conduction mechanism is arranged on the side of the protective shell 1, and the heat conduction mechanism includes a through groove 11, which is opened on the side of the protective shell 1, and a plug block 12 is inserted into the inner wall of the through groove 11, and the plug block 12 is closely matched with the through groove 11, so as to ensure the stability of the structure and the efficiency of heat conduction. A heat-conducting silicone pad 13 is fixedly installed on the side of the plug block 12, and this silicone pad has high thermal conductivity and can effectively conduct away the heat generated when the battery is working. In order to further fix the heat-conducting silicone pad 13 and the plug block 12, a connecting block 14 is also fixedly installed on the surface of the plug block 12. Screw holes 15 are correspondingly opened on the side of the protective shell 1. A limiting bolt 16 is inserted on the surface of the connecting block 14, and the size of this limiting bolt 16 matches the screw hole 15 and can be tightly screwed into the screw hole 15. Threads are specially opened inside the connecting block 14, and these threads are meshed with the external threads of the limiting bolt 16, so as to achieve a stable connection and limiting effect.

[0030] Working principle: the battery body 3 is placed in the protective shell 1, and the battery body 3 can be protected by the protective shell 1. At the same time, the heat generated by the battery body 3 when working can be conducted to the heat dissipation fins 7 through the provided connecting plate 6. At this time, the heat dissipation fins 7 can dissipate the heat to the air in the outside world, thereby preventing the battery body 3 from overheating. At the same time, the staff can twist the threaded rod 4 through a tool. When the threaded rod 4 rotates, since the protective shell 1 is provided with a thread, the threaded rod 4 can move in the protective shell 1 at this time, and the threaded rod 4 can then drive the connecting plate 6 to move, and the connecting plate 6 then drives the heat dissipation fins 7 to move until the heat dissipation fins 7 are received in the protective shell 1. In this way, the heat dissipation fins 7 can be folded up when not in use, thereby preventing the heat dissipation fins 7 from leaking out and being damaged. The utility model effectively conducts the heat generated by the battery body 3 when working to the heat dissipation fins 7 through the connecting plate 6, increases the heat dissipation area, and improves the heat dissipation efficiency of the battery, which helps to prevent the battery from overheating, thereby maintaining the performance of the battery and extending its service life. At the same time, when not in use, the heat dissipation fins 7 can be received in the protective shell 1, which can effectively prevent heat dissipation. The fin 7 is exposed to the outside and is not damaged, which enhances the robustness and durability of the overall structure. When installing the thermally conductive silicone pad 13, it is only necessary to align the thermally conductive silicone pad 13 and the plug block 12 and insert them through the slot 11. After the plug block 12 is inserted through the slot 11, the thermally conductive silicone pad 13 can be installed at this time, and then the limiting bolt 16 is screwed into the connecting block 14 until the limiting bolt 16 is inserted into the screw hole 15. At this time, the plug block 12 can be limited, thereby limiting the thermally conductive silicone pad 13. At this time, the thermally conductive silicone pad 13 is simultaneously attached to the battery body 3 and the connecting plate 6, which can better connect the battery body 3 The heat is conducted to the connecting plate 6 for heat dissipation, thereby improving the heat dissipation effect, and the thermally conductive silicone pad 13 can be easily disassembled and assembled. The thermally conductive silicone pad 13 in the utility model is designed to fit tightly against the battery body 3 and the connecting plate 6, effectively improving the heat conduction efficiency, thereby improving the heat dissipation effect, and the installation can be completed by simply aligning the plug 12 and inserting it through the slot 11, and then fixing it with the limit bolt 16. This installation method greatly simplifies the installation steps, improves work efficiency, simplifies the installation and disassembly process, and reduces labor costs and time costs.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A lithium polymer battery protection structure, comprising a protective housing (1), characterized in that: A cover plate (2) is fixedly mounted on the top surface of the protective shell (1), a battery body (3) is mounted on the inner wall of the protective shell (1), a threaded rod (4) and a sliding rod (5) are penetrated through the surface of the protective shell (1), one end of the threaded rod (4) is rotatably connected to a connecting plate (6), a heat dissipation fin (7) is fixedly mounted on the surface of the connecting plate (6), and a stopper (8) is fixedly mounted on one end of the sliding rod (5).

2. The lithium polymer battery protection structure according to claim 1, characterized in that: A side handle (9) is fixedly mounted on the side of the protective shell (1), and the material of the side handle (9) is austenitic stainless steel.

3. The lithium polymer battery protection structure according to claim 1, characterized in that: The interior of the protective shell (1) is provided with threads, and the threads are meshed with the threaded rod (4).

4. The lithium polymer battery protection structure according to claim 1, characterized in that: The sliding rod (5) is slidably connected to the protective shell (1), and the sliding rod (5) is fixedly connected to the connecting plate (6).

5. The lithium polymer battery protection structure according to claim 1, characterized in that: A hexagonal groove (10) is formed at one end of the threaded rod (4), and the heat dissipation fins (7) are arranged at equal distances on the surface of the connecting plate (6).

6. The lithium polymer battery protection structure according to claim 1, characterized in that: A heat-conducting mechanism is arranged on the side of the protective shell (1), and the heat-conducting mechanism comprises a through groove (11), the through groove (11) is opened on the side of the protective shell (1), an insert block (12) is inserted into the inner wall of the through groove (11), a heat-conducting silicone pad (13) is fixedly installed on the side of the insert block (12), a connecting block (14) is fixedly installed on the surface of the insert block (12), a screw hole (15) is opened on the side of the protective shell (1), and a limiting bolt (16) is inserted into the surface of the connecting block (14).

7. The lithium polymer battery protection structure according to claim 6, characterized in that: The size of the limiting bolt (16) is the same as that of the screw hole (15); a thread is provided inside the connecting block (14), and the thread is meshed with the limiting bolt (16).

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