微型电池的导线连接结构

By employing a wire connection structure in the micro battery, with the first wire welded to the outer casing and the second wire connected to the end cap, combined with insulating pads and insulating adhesive, the problem of high welding difficulty in micro batteries is solved, achieving connection stability and safety of the battery. This addresses the issues of electrical connection stability and safety in micro batteries, making it suitable for various small electronic devices.

CN224519998UActive Publication Date: 2026-07-17DONGGUAN LIDEA ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN LIDEA ELECTRONICS CO LTD
Filing Date
2025-07-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing micro batteries are difficult to weld, and the use of specialized connectors increases production costs and complexity. Furthermore, they require highly skilled welders and cannot meet the need for precise connections.

Method used

The structure employs a wire connection, in which the first wire is directly welded to the outer casing, and the second wire is connected to the solder pad of the end cap. Combined with insulating pads and insulating adhesive, this ensures the stability and reliability of the electrical connection, avoids the risk of short circuits, and meets the space utilization requirements of micro batteries.

Benefits of technology

It improves the stability and reliability of electrical connections, reduces resistance, enhances battery power efficiency and safety, avoids the risk of poor contact and short circuits, and is suitable for small electronic devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型涉及电池技术领域，特别是一种微型电池的导线连接结构，包括电池本体、第一导线以及第二导线，所述电池本体包括外壳、电芯以及端盖，所述外壳内设置有腔体，所述电芯设置在腔体内，所述端盖设置在腔体的一端并设置绝缘垫与外壳绝缘分隔，所述电芯的正负极分别连接外壳和端盖，所述端盖的一面设置有焊片，所述第一导线与外壳的外侧面连接，所述第二导线与焊片连接。本实用新型导线连接结构布局紧凑，符合微型电池对空间利用的高要求，在有限的空间内实现了高效、可靠的电气连接，有助于微型电池在各类小型电子设备中发挥稳定性能。
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Claims

1. A lead connection structure of a micro battery, characterized by: The battery includes a battery body, a first wire, and a second wire. The battery body includes a casing, a battery cell, and an end cap. A cavity is provided inside the casing, and the battery cell is disposed in the cavity. The end cap is disposed at one end of the cavity and is provided with an insulating pad to insulate it from the casing. The positive and negative terminals of the battery cell are respectively connected to the casing and the end cap. A solder pad is provided on one side of the end cap. The first wire is connected to the outer side of the casing, and the second wire is connected to the solder pad.

2. The wire connecting structure of a microcell according to claim 1, wherein: The outer shell includes an upper shell and a lower shell, and the ends of the upper shell and the lower shell are welded together to form an integral outer shell.

3. The wire connecting structure of a microcell according to claim 2, wherein: Both the upper and lower shells are cylindrical shells and are welded together through an opening.

4. The wire connecting structure of a microcell according to claim 3, wherein: One end of the first wire is welded to the lower housing and close to the solder pad, and is on the same side as the second wire.

5. The wire connecting structure of a microcell according to claim 2, wherein: The lower housing is provided with a through groove, the insulating pad is provided on the outer periphery of the through groove, one side of the end cap is sealed and abutted against the insulating pad, and the other side is connected to the negative electrode of the battery cell.

6. The wire connecting structure of a microcell according to claim 5, wherein: The end cap is provided with a protrusion that protrudes towards the through groove, and one side of the solder pad is welded to the protrusion; one end of the solder pad is provided with a solder pad, and the second wire is welded to the solder pad.

7. The wire connecting structure of a microcell according to claim 6, wherein: The height of the protrusion is either equal to or exceeds the end height of the lower housing.

8. The wire connecting structure of a microcell according to claim 1, wherein: It also includes an insulating sticker, wherein the first wire and the second wire are located on the same side of the housing, and the insulating sticker is used to separate the first wire and the second wire.

9. The wire connecting structure of a microcell according to claim 8, wherein: The insulating adhesive includes a bottom adhesive and a side adhesive. The bottom adhesive is used to adhere to the lower surface of the housing and to separate the solder pads from the lower surface of the housing. The side adhesive extends along the side of the housing to the top of the housing.

10. The wire connection structure of the micro battery according to claim 8, characterized in that: It also includes a first insulating adhesive and a second insulating adhesive. The first insulating adhesive is used to adhere to a first end of the housing, and the second insulating adhesive is used to adhere to a second end. The second insulating adhesive covers the insulating tape, the end of the second conductor, and the solder pad. The surface of the first insulating adhesive is used for the end overlap of the first conductor and the second conductor.