Polymer cell with insulation protection structure

Abstract

The utility model relates to the technical field of polymer battery cells, in particular to a polymer battery cell with an insulation protection structure, which comprises a polymer battery cell, and an insulation protection sleeve is sleeved on the surface of the polymer battery cell; the locking mechanism comprises a sliding rail embedded in one vertical inner wall of the insulating protective sleeve, a locking ring is embedded in one end of the sliding rail, one end of the locking ring penetrates out of the insulating protective sleeve, and a sliding strip fixedly connected with the polymer battery cell is slidably connected to the inner side of the sliding rail; the polymer battery cell is locked on the inner side of the insulating protective sleeve in an elastic locking manner, so that the polymer battery cell can be locked in all directions by matching with the insulating protective sleeve, the polymer battery cell is more stable during subsequent operation, and when a user needs to disassemble the polymer battery cell, the polymer battery cell can be conveniently disassembled. And a user only needs to press the positioning block into the mounting cavity, so that the polymer battery cell can be assembled, and the effect of convenient disassembly is achieved.

Description

Technical Field

[0001] This utility model relates to the field of polymer battery cell technology, and in particular to a polymer battery cell with an insulating protection structure. Background Technology

[0002] Polymer cells are a type of lithium-ion battery made from polymer electrolyte materials. They feature high energy density, long lifespan, high safety, and high flexibility. They are widely used in electronic products, new energy vehicles, medical devices, and wearable devices.

[0003] Currently, a Chinese patent has disclosed a polymer battery cell with an insulating protective structure (authorization announcement number CN222029211U). When installing a polymer battery cell with an insulating protective structure, firstly, the buffer layer made of rubber material can reduce the vibration generated during installation contact, while the high-strength first and second insulating layers can prevent deformation when in contact or under impact. On the basis of insulation, it can minimize the impact when in contact with a hard outer shell. Moreover, the protective layer made of sponge material can effectively protect the battery cell body from direct contact with the first insulating layer. If the first insulating layer is deformed due to excessive force, the protective layer also acts as a buffer to prevent the deformation of the first insulating layer from directly affecting the battery cell body. Compared with existing polymer battery cells, it can protect the battery cell from contact or impact when in contact with a hard outer shell, improving the protection and practicality of the polymer battery cell during installation.

[0004] As can be seen from the above reference case, the above device inserts the polymer battery cell into a protective layer made of sponge and completes the quick connection through a fixing block, groove and limiting groove. However, this cannot prevent the polymer battery cell from moving in the direction of the outward opening of the protective layer, making it difficult to ensure a stable static connection between the polymer battery cell and the external device, and increasing the uncertainty of the operation of the polymer battery cell.

[0005] Therefore, a polymer battery cell with an insulating protection structure is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a polymer battery cell with an insulating protection structure to solve the above-mentioned problems, thereby improving the current problem that polymer battery cells with insulating protection structures are difficult to lock effectively, increasing the uncertainty of use.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a polymer battery cell with an insulating protection structure, comprising:

[0008] A polymer battery cell, wherein an insulating protective sleeve is fitted over the surface of the polymer battery cell;

[0009] A locking mechanism includes a slide rail embedded in one of the vertical inner walls of an insulating protective sleeve. A locking ring is embedded in one end of the slide rail, and one end of the locking ring extends through the insulating protective sleeve. A slide bar that is fixedly connected to a polymer battery cell is slidably connected to the inner side of the slide rail. One end of the slide bar has a mounting cavity that communicates with the inner side of the locking ring. A positioning block that is inserted into the locking ring is slidably connected inside the mounting cavity.

[0010] Preferably, the inner side of the opening at one end of the locking ring is beveled, and the minimum inner diameter of the locking ring is the same as the maximum diameter of the positioning block penetrating the mounting cavity.

[0011] Preferably, the vertical cross-sectional shape of the positioning block and the mounting cavity is convex, and the maximum diameter of the positioning block inside the mounting cavity is smaller than the maximum inner diameter of the mounting cavity opening.

[0012] Preferably, the vertical cross-sectional shapes of the inner side of the slide rail and the slide bar are both convex shapes that match each other, and the corners of the slide bar are rounded.

[0013] Preferably, a spring is provided inside the mounting cavity, with both ends of the spring contacting the mounting cavity and the positioning block respectively, and the spring is always in a compressed state.

[0014] Preferably, one end of the positioning block has a protective groove, and one end of the spring passes through the interior of the protective groove.

[0015] Preferably, the slide rail, locking ring, slide bar, positioning block, and spring are all components made of insulating plastic material.

[0016] The beneficial effects of this utility model are:

[0017] 1. The polymer battery cell is locked inside the insulating protective sleeve by an elastic locking method. This can work with the insulating protective sleeve to lock the polymer battery cell in all directions, making the polymer battery cell more stable during subsequent operation. When the user needs to disassemble the polymer battery cell, the user only needs to press the positioning block into the installation cavity to remove the polymer battery cell, so as to achieve the effect of easy disassembly.

[0018] 2. The locking ring is positioned away from the opening of the insulating protective sleeve. When the user quickly inserts the polymer battery cell into the insulating protective sleeve, the polymer battery cell can quickly squeeze out the air inside the insulating protective sleeve through the locking ring. This not only reduces the resistance during installation of the polymer battery cell, but also allows the insulating protective sleeve to fit more tightly against the surface of the polymer battery cell, thereby improving the insulation and protection effect of the polymer battery cell. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0021] Figure 3 for Figure 2 Enlarged view of A in the middle;

[0022] Figure 4 This is a partial exploded view of the locking mechanism in this utility model.

[0023] In the diagram: 100, polymer battery cell; 200, insulating protective sleeve; 300, locking mechanism; 310, slide rail; 320, locking ring; 330, slide bar; 331, mounting cavity; 340, positioning block; 341, protective groove; 350, spring. 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] In practical implementation: such as Figure 1-4 As shown, a polymer battery cell with an insulating protective structure includes: a polymer battery cell 100 and a locking mechanism 300, wherein an insulating protective sleeve 200 is sleeved on the surface of the polymer battery cell 100.

[0026] The insulating protective sleeve 200 consists of an insulating layer, a buffer protective layer, and a wear-resistant layer, arranged sequentially from the inside out. These layers are connected using existing hot-melt or adhesive methods. The specific connection method depends on actual needs and production processes, and will not be elaborated here. The insulating layer is made of polyethylene, which possesses advantages such as high insulation resistance and dielectric strength, stable dielectric constant, good mechanical properties, high flexibility, and resistance to chemical corrosion. It also has low moisture absorption, good water resistance, and its insulation resistance remains essentially unchanged after immersion in water. The buffer protective layer is made of silicone, which has excellent high-temperature resistance and chemical stability, maintaining stable performance in high-temperature and corrosive environments. Silicone also has excellent elasticity and cushioning properties, effectively reducing vibration and impact. The wear-resistant layer is made of polyimide, a high-performance organic polymer material with high strength, high hardness, low coefficient of friction, high-temperature resistance, chemical corrosion resistance, and excellent electrical insulation properties.

[0027] like Figure 3 and Figure 4As shown, the locking mechanism 300 includes a slide rail 310 embedded in one of the vertical inner walls of the insulating protective sleeve 200. A locking ring 320 is embedded in one end of the slide rail 310, and one end of the locking ring 320 extends through the insulating protective sleeve 200. A slide bar 330 that is fixedly connected to the polymer cell 100 is slidably connected to the inner side of the slide rail 310. One end of the slide bar 330 has a mounting cavity 331 that communicates with the inner side of the locking ring 320. A positioning block 340 that is inserted into the locking ring 320 is slidably connected inside the mounting cavity 331. The slide bar 330 can be glued to the side of the polymer cell 100.

[0028] The inner side of the opening at one end of the locking ring 320 is beveled. The minimum inner diameter of the locking ring 320 and the maximum diameter of the positioning block 340 that passes through the mounting cavity 331 are the same. This can reduce the burden on the user to press the positioning block 340 inside the locking ring 320 back into the mounting cavity 331, so that the user can remove the polymer cell 100.

[0029] Both the positioning block 340 and the mounting cavity 331 have a convex vertical cross-section. The maximum diameter of the positioning block 340 inside the mounting cavity 331 is smaller than the maximum inner diameter of the opening of the mounting cavity 331. This can prevent the positioning block 340 from completely coming out of the mounting cavity 331, thereby reducing the probability of the positioning block 340 being lost.

[0030] The inner side of the slide rail 310 and the vertical cross-sectional shape of the slide bar 330 are both convex shapes that match each other. The corners of the slide bar 330 are rounded, which can improve the success rate of connecting the slide bar 330 and the slide rail 310.

[0031] A spring 350 is installed inside the mounting cavity 331. The two ends of the spring 350 are in contact with the mounting cavity 331 and the positioning block 340, respectively. The spring 350 is always in a compressed state. This not only allows the positioning block 340 to push back after it loses its obstruction, but also applies a stable outward thrust to the positioning block 340, making the connection between the positioning block 340 and the locking ring 320 more stable.

[0032] One end of the positioning block 340 is provided with a protective groove 341, and one end of the spring 350 extends into the interior of the protective groove 341. This provides sufficient space for the spring 350 to extend and retract, preventing the spring 350 from being damaged due to excessive compression.

[0033] The slide rail 310, locking ring 320, slide bar 330, positioning block 340 and spring 350 are all made of insulating plastic material, which can improve the insulation effect on the polymer cell 100 and improve the safety factor in use.

[0034] When using this invention, if the user needs to install the polymer battery cell 100 into the insulating protective sleeve 200, the user first inserts the slider 330 into the slide rail 310, then presses the positioning block 340 into the mounting cavity 331, and then pushes the slider 330 again. The slider 330 drives the mounting cavity 331 and the positioning block 340 to move inside the slide rail 310. During this process, the slider 330 drives the polymer battery cell 100 to move in the insulating protective sleeve 200. When the polymer battery cell 100 is installed in place, the mounting cavity 331 is just connected and aligned with the inner side of the locking ring 320. The positioning block 340 is no longer obstructed, and the spring 350 quickly pushes the positioning block 340 outward. The positioning block 340 is inserted into the inner side of the locking ring 320, and the slider 330 and the polymer battery cell 100 are firmly locked inside the insulating protective sleeve 200. This can lock the polymer battery cell 100 in all directions, making the operation of the polymer battery cell 100 more stable.

[0035] It should be noted that the polymer cell 100 mentioned above is a device with relatively mature existing technology. The specific model can be selected according to actual needs, and will not be elaborated here.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A polymer battery cell with an insulating protective structure, characterized in that, include: A polymer battery cell (100) is provided with an insulating protective sleeve (200) covering its surface; A locking mechanism (300) includes a slide rail (310) embedded in one of the vertical inner walls of an insulating protective sleeve (200). A locking ring (320) is embedded at one end of the slide rail (310). One end of the locking ring (320) extends through the insulating protective sleeve (200). A slide bar (330) is slidably connected to the inner side of the slide rail (310) and fixedly connected to a polymer battery cell (100). One end of the slide bar (330) has an installation cavity (331) communicating with the inner side of the locking ring (320). A positioning block (340) that is inserted into the locking ring (320) is slidably connected inside the installation cavity (331).

2. A polymer battery cell with an insulating protection structure according to claim 1, characterized in that: The inner side of the opening at one end of the locking ring (320) is beveled, and the minimum inner diameter of the locking ring (320) is the same as the maximum diameter of the positioning block (340) that passes through the mounting cavity (331).

3. A polymer battery cell with an insulating protection structure according to claim 1, characterized in that: The vertical cross-sectional shape of the positioning block (340) and the mounting cavity (331) is convex. The maximum diameter of the positioning block (340) inside the mounting cavity (331) is smaller than the maximum inner diameter of the opening of the mounting cavity (331).

4. A polymer battery cell with an insulating protection structure according to claim 1, characterized in that: The inner side of the slide rail (310) and the vertical cross-sectional shape of the slide bar (330) are both convex shapes that match each other, and the corners of the slide bar (330) are rounded.

5. A polymer battery cell with an insulating protection structure according to claim 1, characterized in that: A spring (350) is provided inside the mounting cavity (331). The two ends of the spring (350) are in contact with the mounting cavity (331) and the positioning block (340) respectively. The spring (350) is always in a compressed state.

6. A polymer battery cell with an insulating protection structure according to claim 5, characterized in that: One end of the positioning block (340) is provided with a protective groove (341), and one end of the spring (350) extends through the interior of the protective groove (341).

7. A polymer battery cell with an insulating protection structure according to claim 5, characterized in that: The slide rail (310), locking ring (320), slide bar (330), positioning block (340) and spring (350) are all components made of insulating plastic material.

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