A gasket structure for batteries

Abstract

This utility model relates to a battery gasket structure, belonging to the field of battery assembly and positioning technology. It includes an insulating ring, a conductive ring disposed on the insulating ring, and a magnet fixedly disposed on the conductive ring. The magnet is used to attract the battery. The insulating ring has an annular cavity structure for positioning the conductive ring. The outer end of the conductive ring is a conductive end face that contacts the battery, and the conductive end face of the conductive ring located within the annular cavity structure protrudes beyond the outer end face of the insulating ring. This utility model's gasket structure is simple in structure and easy to assemble. Utilizing the magnet to attract the battery, the conductive ring maintains stable contact with the battery, avoiding the risk of power failure. The magnetic attraction between the magnet and the battery also prevents it from falling or being lost. When the battery is assembled into the battery compartment, the battery gasket structure can compensate for the battery length to fit the battery compartment. The connection between the battery and the battery gasket structure is stable, thus ensuring the reliability and safety of battery assembly.

Description

Technical Field

[0001] This utility model relates to a gasket structure for batteries, belonging to the field of battery assembly and positioning technology. Background Technology

[0002] The 18650 battery is a common cylindrical lithium-ion battery. The "18" indicates a standard diameter of 18mm, "65" indicates a standard height of 65mm, and "0" signifies a cylindrical shape. It boasts high energy density, stable discharge performance, and a mature manufacturing process. The 18650 battery has a wide range of applications, primarily in laptop batteries and high-end flashlights. The size specifications of the 18650 battery are specifically designed for industrial applications and differ from the sizes of commonly seen AAA, AA, or other standard batteries. Therefore, strictly speaking, the 18650 battery is a cylindrical battery with its own unique size.

[0003] However, in practical applications, we find that some batteries labeled as 18650 are not the standard 65mm in length when measured, but are slightly longer, such as 69mm. Since these batteries need to be installed in a battery compartment, matching 65mm and 69mm batteries to corresponding battery compartments increases the cost of two different compartment sizes. Furthermore, installing a 69mm battery in a compartment that only accommodates 65mm batteries can damage the battery or the compartment itself. Achieving compatibility in the battery compartment structure is also complex and costly. Therefore, to meet the battery assembly requirements, the battery compartment can be designed to accommodate 69mm batteries. However, this approach can lead to loosening and power loss issues when installing shorter batteries.

[0004] To ensure the battery compartment can accommodate batteries of different lengths, existing systems typically use metal washers, springs, and other contact components to achieve electrical connections during battery assembly. However, these washers are prone to misalignment or detachment during battery assembly, potentially leading to power outages and increasing the difficulty of manual operation. Furthermore, vibrations can cause the washers to shift or loosen, resulting in poor contact or even power outages, thus affecting the reliability of the equipment. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a gasket structure for batteries.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A battery gasket structure includes an insulating gasket ring, a conductive ring disposed on the insulating gasket ring, and a magnet fixedly disposed on the conductive ring. The magnet is used to attract the battery. The insulating gasket ring has an annular cavity structure for positioning the conductive ring. The outer end of the conductive ring is a conductive end face that contacts the battery. The conductive end face of the conductive ring located in the annular cavity structure protrudes from the outer end face of the insulating gasket ring.

[0007] The beneficial effects of this utility model are as follows: The insulating gasket has an annular cavity structure that accommodates the conductive ring, the inner wall of which matches the outer edge of the conductive ring. The magnet is fixedly set on the conductive ring. The gasket structure is simple in structure and easy to assemble. It uses the magnetic attraction of the magnet to attract the battery. When there is vibration, the conductive end face of the conductive ring can always maintain stable contact with the battery, avoiding the risk of power failure. Moreover, the magnetic attraction between the magnet and the battery can also prevent the gasket structure from falling off and being lost. When the battery is assembled into the battery compartment, the battery gasket structure can compensate for or make up for the length of the battery to fit the battery compartment. This allows a slightly shorter 65mm battery to fit into a 69mm battery compartment. The battery compartment can be compatible with batteries of 65mm and 69mm length. The connection between the battery and the battery gasket structure is stable, avoiding the problems of loosening, power failure and poor contact under vibration. When the battery is assembled into the battery compartment, the gasket structure will not fall off when it is attracted to the battery, thus ensuring the reliability and safety of the battery assembly connection.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, a conductive positioning structure for stably positioning the conductive ring is provided between the insulating pad ring and the conductive ring.

[0010] The beneficial effect of adopting the above-mentioned further solution is that the conductive positioning structure can further improve the stability of the conductive ring within the insulating gasket ring, prevent the conductive ring from shifting during use, and thus ensure the stability and reliability of the battery gasket structure.

[0011] Furthermore, the conductive positioning structure includes an axial positioning mechanism, which includes a positioning groove and a positioning protrusion adapted to the positioning groove. The positioning groove is circumferentially disposed on the inner wall of the insulating gasket, and the positioning protrusion is disposed on the outer circumferential surface of the conductive ring.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the cooperation between the positioning groove and the positioning protrusion can realize the axial positioning of the conductive ring and prevent the conductive ring from moving axially within the insulating pad ring.

[0013] Furthermore, the conductive positioning structure also includes a circumferential positioning mechanism, which includes a positioning protrusion and a protrusion groove adapted to the positioning protrusion. The positioning protrusion is axially disposed on the inner wall of the insulating pad ring, and the protrusion groove is axially disposed on the outer surface of the conductive ring.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the cooperation between the axial positioning mechanism and the circumferential positioning mechanism makes the conductive ring more stably positioned within the insulating gasket ring, effectively preventing displacement during use and improving the overall stability and reliability of the battery gasket structure.

[0015] Furthermore, the positioning protrusions are multiple and are evenly distributed circumferentially on the inner wall of the insulating ring.

[0016] The beneficial effects of adopting the above-mentioned further solution are that the positioning of multiple positioning protrusions in the circumferential direction is more stable and reliable, avoiding the displacement or rotation of the conductive ring during use. The even distribution of multiple positioning protrusions can also effectively disperse the force and extend the service life of the gasket structure.

[0017] Furthermore, the conductive ring is provided with a magnet receiving cavity for positioning the magnet.

[0018] The beneficial effects of adopting the above-mentioned further solution are that the magnet receiving cavity allows the magnet to be securely installed in the conductive ring, the magnet is accurately positioned in the conductive ring, and it also prepares for the fixed installation of the magnet on the conductive ring. During battery assembly, the magnet can be well attracted to the battery, preventing the gasket structure from being lost.

[0019] Furthermore, a magnet positioning structure is provided between the conductive ring and the magnet. The magnet positioning structure includes a positioning post and a positioning hole adapted to the positioning post. The positioning post is disposed in the magnet receiving cavity of the conductive ring, and the positioning hole is disposed on the magnet.

[0020] The beneficial effects of adopting the above-mentioned further solution are that the cooperation between the positioning post and the positioning hole simplifies the magnet installation process, improves the assembly efficiency between the two, and makes the magnet more accurately positioned on the conductive ring, ensuring the consistency of the magnet's installation position on the conductive ring, avoiding the inaccurate positioning of the magnet from affecting the adsorption effect between the magnet and the battery, and ensuring the stability and reliability of the battery gasket structure.

[0021] Furthermore, the magnet has a ring structure.

[0022] The beneficial effect of adopting the above-described further solution is that the magnet receiving cavity is an annular chamber, which facilitates the positioning of the magnet on the conductive ring. The annular magnet not only satisfies the attraction effect between the magnet and the battery, preventing the gasket structure from falling off and being lost when the battery is assembled into the battery compartment, but also better matches the magnet receiving cavity of the conductive ring, ensuring the accurate positioning of the magnet within the conductive ring.

[0023] Furthermore, the magnet is fixed to the conductive ring with adhesive.

[0024] The advantage of adopting the above-mentioned further solution is that the magnet can also be fixed to the conductive ring with quick-drying adhesive, and then the conductive ring can be placed inside the insulating pad ring, making the positioning of the magnet and the conductive ring more stable and reliable.

[0025] Furthermore, the conductive end face of the conductive ring located within the annular cavity structure is 0.05-0.2 mm higher than the outer end face of the insulating pad ring.

[0026] The beneficial effect of adopting the above-mentioned further solution is that the conductive end face of the conductive ring can more effectively contact the end face of the battery, ensuring good conductivity. At the same time, the height difference of 0.05-0.2mm also avoids the problem of affecting the battery assembly positioning due to the conductive end face being too protruding, ensuring the stability and reliability of the gasket structure.

[0027] Furthermore, the insulating ring is made of silicone; and / or the conductive ring is made of copper or stainless steel.

[0028] The advantages of adopting the above-mentioned further solutions are that the silicone material has good elasticity, which facilitates the installation and positioning of the conductive ring on the insulating pad ring. It also has good insulation performance, high temperature resistance and low temperature resistance, which improves the reliability and safety of the battery. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the split structure of this utility model; Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a top-view three-dimensional structural diagram of the present invention; Figure 5 This is a bottom view of the structure of this utility model; Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure along the AA direction; Figure 7 This is a three-dimensional structural diagram of the present invention viewed from below. In the figure, 100 is the insulating pad ring; 101 is the ring cavity structure; 102 is the positioning groove; 103 is the positioning protrusion; 200 is the conductive ring; 201 is the magnet receiving cavity; 202 is the positioning ridge; 203 is the protrusion slot; 204 is the positioning post; 300 is the magnet; and 301 is the positioning hole. Detailed Implementation

[0030] The principles and features of this utility model are described below with reference to examples. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0031] like Figures 1-7 As shown, a battery gasket structure includes an insulating ring 100, a conductive ring 200 disposed on the insulating ring 100, and a magnet 300 fixedly disposed on the conductive ring 200. The magnet 300 is used to attract the battery. The insulating ring 100 has an annular cavity structure 101 for positioning the conductive ring 200. The outer end of the conductive ring 200 is a conductive end face that contacts the battery. The conductive end face of the conductive ring 200 located in the annular cavity structure 101 protrudes from the outer end face of the insulating ring 100.

[0032] A conductive positioning structure for stably positioning the conductive ring 200 is further provided between the insulating gasket 100 and the conductive ring 200. The conductive positioning structure can further improve the stability of the conductive ring 200 within the insulating gasket 100, prevent the conductive ring 200 from shifting during use, thereby ensuring the stability and reliability of the battery gasket structure.

[0033] The conductive positioning structure includes an axial positioning mechanism, which comprises a positioning groove 102 and a positioning protrusion 202 adapted to the positioning groove 102. The positioning groove 102 is circumferentially disposed on the inner wall of the insulating ring 100, and the positioning protrusion 202 is disposed on the outer circumferential surface of the conductive ring 200. The cooperation between the positioning groove 102 and the positioning protrusion 202 can realize the axial positioning of the conductive ring 200 and prevent the conductive ring 200 from axially moving within the insulating ring 100.

[0034] The conductive positioning structure also includes a circumferential positioning mechanism, which includes a positioning protrusion 103 and a protrusion groove 203 adapted to the positioning protrusion 103. The positioning protrusion 103 is axially disposed on the inner wall of the insulating gasket 100, and the protrusion groove 203 is axially disposed on the outer surface of the conductive ring 200. The cooperation of the axial positioning mechanism and the circumferential positioning mechanism makes the positioning of the conductive ring 200 within the insulating gasket 100 more stable, effectively preventing displacement during use and improving the overall stability and reliability of the battery gasket structure.

[0035] The positioning protrusions 103 are multiple and evenly distributed circumferentially on the inner wall of the insulating gasket ring 100. The multiple positioning protrusions 103 provide more stable and reliable positioning in the circumferential direction, preventing the conductive ring 200 from shifting or rotating during use. The even distribution of the multiple positioning protrusions 103 also effectively disperses the force, extending the service life of the gasket structure.

[0036] The positioning protrusions 103 are provided in four directions, which are evenly distributed on the inner wall of the insulating pad ring 100. The protrusion slots 203 are provided in four directions, which are evenly distributed on the outer circumferential surface of the conductive ring 200. A positioning ridge 202 is provided between adjacent protrusion slots 203.

[0037] The inner end face of the conductive ring 200 is flush with the inner end face of the insulating gasket ring 100. This facilitates the stable positioning of the gasket structure in the battery compartment.

[0038] The conductive ring 200 has a magnet receiving cavity 201 for positioning the magnet 300. The magnet receiving cavity 201 allows the magnet 300 to be securely installed in the conductive ring 200, ensuring accurate positioning of the magnet 300 within the conductive ring 200. This also prepares for the fixed installation of the magnet 300 on the conductive ring 200. During battery assembly, the magnet 300 can be well attracted to the battery, preventing the gasket structure from being lost.

[0039] A magnet positioning structure is provided between the conductive ring 200 and the magnet 300. The magnet positioning structure includes a positioning post 204 and a positioning hole 301 adapted to the positioning post 204. The positioning post 204 is disposed within the magnet receiving cavity 201 of the conductive ring 200, and the positioning hole 301 is disposed on the magnet 300. The cooperation between the positioning post 204 and the positioning hole 301 simplifies the installation process of the magnet 300, improves the assembly efficiency between the two, and ensures more accurate positioning of the magnet 300 on the conductive ring 200. This ensures the consistency of the installation position of the magnet 300 on the conductive ring 200, preventing inaccurate positioning of the magnet 300 from affecting the adsorption effect between the magnet 300 and the battery, and guaranteeing the stability and reliability of the battery gasket structure.

[0040] The magnet 300 has a ring-shaped structure. The magnet receiving cavity 201 is a ring-shaped chamber, which facilitates the positioning of the magnet 300 on the conductive ring 200. The ring magnet 300 not only satisfies the adsorption effect between the magnet 300 and the battery, preventing the gasket structure from being lost, but also better matches the magnet receiving cavity 201 of the conductive ring 200, ensuring the accurate positioning of the magnet 300 within the conductive ring 200.

[0041] The magnet 300 is fixed to the conductive ring 200 with adhesive. Alternatively, the magnet 300 can be fixed to the conductive ring 200 with quick-drying adhesive, and then the conductive ring 200 can be placed inside the insulating pad ring 100, which makes the positioning of the magnet 300 and the conductive ring 200 more stable and reliable.

[0042] The conductive end face of the conductive ring 200 located within the annular cavity structure 101 is 0.05-0.2 mm higher than the outer end face of the insulating gasket ring 100. This conductive end face of the conductive ring 200 allows for more effective contact with the battery electrodes, ensuring good conductivity. Simultaneously, the 0.05-0.2 mm height difference prevents the conductive end face from protruding excessively and affecting battery assembly positioning, thus ensuring the stability and reliability of the gasket structure.

[0043] The conductive end face of the conductive ring 200 located within the annular cavity structure 101 is 0.1 mm higher (h) than the outer end face of the insulating pad ring 100. The insulating ring 100 is made of silicone. Silicone has good elasticity, which facilitates the installation and positioning of the conductive ring 200 on the insulating ring 100. It also has good insulation properties, high temperature resistance, and low temperature resistance, which improves the reliability and safety of the battery.

[0044] The conductive ring 200 is made of copper or stainless steel.

[0045] In use, the magnet 300 is placed into the magnet receiving cavity 201 of the conductive ring 200. The positioning post 204 can accurately position the magnet 300. The annular magnet 300 and the conductive ring 200 can be fixed together with quick-drying adhesive. Then, the assembled conductive ring 200 is inserted into the silicone insulating pad ring 100 to ensure accurate and stable positioning of the conductive ring 200 within the insulating pad ring 100. There is a concave-convex conductive positioning mechanism between the copper conductive ring 200 and the silicone insulating pad ring 100, which can play a limiting role. The conductive end face of the conductive ring 200 is higher than the end face of the silicone insulating pad ring 100 without obstructing the conduction. The conductive ring 200 utilizes the magnetic attraction of the magnet 300 to attract the battery, resulting in a simple structure, easy assembly, and low cost. Even under vibration, the conductive end face of the conductive ring 200 maintains stable contact with the battery, preventing power outages. During battery assembly, it also prevents the gasket structure from falling off or being lost. Through the battery gasket structure, the battery compartment, originally designed for 69mm batteries, can accommodate not only 69mm batteries but also shorter 65mm batteries, compensating for battery length variations and improving compatibility. This enhances the battery compartment's compatibility and ensures reliable and safe battery connections.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 gasket structure for a battery, characterized by comprising: The device includes an insulating pad ring (100), a conductive ring (200) disposed on the insulating pad ring (100), and a magnet (300) fixedly disposed on the conductive ring (200). The magnet (300) is used to attract the battery. The insulating pad ring (100) has an annular cavity structure (101) for positioning the conductive ring (200). The outer end of the conductive ring (200) is a conductive end face that contacts the battery. The conductive end face of the conductive ring (200) located in the annular cavity structure (101) protrudes from the outer end face of the insulating pad ring (100).

2. The gasket structure for a battery according to claim 1, characterized by A conductive positioning structure for stably positioning the conductive ring (200) is also provided between the insulating pad ring (100) and the conductive ring (200).

3. The gasket structure for a battery according to claim 2, characterized by The conductive positioning structure includes an axial positioning mechanism, which includes a positioning groove (102) and a positioning protrusion (202) adapted to the positioning groove (102). The positioning groove (102) is circumferentially disposed on the inner wall of the insulating pad ring (100), and the positioning protrusion (202) is disposed on the outer circumferential surface of the conductive ring (200).

4. The battery gasket structure according to claim 3, characterized in that, The conductive positioning structure further includes a circumferential positioning mechanism, which includes a positioning protrusion (103) and a protrusion groove (203) adapted to the positioning protrusion (103). The positioning protrusion (103) is axially disposed on the inner wall of the insulating pad ring (100), and the protrusion groove (203) is axially disposed on the outer surface of the conductive ring (200).

5. The gasket structure for a battery according to claim 4, characterized by The positioning protrusions (103) are multiple and are evenly distributed circumferentially on the inner wall of the insulating pad ring (100).

6. The gasket structure for a battery according to any one of claims 1 to 5, characterized by The conductive ring (200) has a magnet receiving cavity (201) for positioning the magnet (300).

7. The gasket structure for a battery according to claim 6, characterized by A magnet positioning structure is provided between the conductive ring (200) and the magnet (300). The magnet positioning structure includes a positioning post (204) and a positioning hole (301) adapted to the positioning post (204). The positioning post (204) is disposed in the magnet receiving cavity (201) of the conductive ring (200), and the positioning hole (301) is disposed on the magnet (300).

8. The battery gasket structure according to claim 7, characterized in that, The magnet (300) has a ring structure; and / or the magnet (300) is fixed to the conductive ring (200) by adhesive.

9. The gasket structure for a battery according to any one of claims 1 to 5, characterized by The conductive end face of the conductive ring (200) located within the annular cavity structure (101) is 0.05-0.2 mm higher than the outer end face of the insulating pad ring (100).

10. The gasket structure for a battery according to any one of claims 1 to 5, characterized by The insulating ring (100) is made of silicone; and / or the conductive ring (200) is made of copper or stainless steel.

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