Anti-interference protection plate and battery

By designing the signal ground structure and via connection of the top and adjacent layers in the battery protection board, combined with bus fuse protection, the problem of battery susceptibility to external interference is solved, and the current transmission efficiency and anti-interference capability are improved.

CN224366888UActive Publication Date: 2026-06-16ZHEJIANG SUNWODA ELECTRONIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG SUNWODA ELECTRONIC CO LTD
Filing Date
2025-04-30
Publication Date
2026-06-16

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Abstract

The application relates to the field of electronic products, in particular to an anti-interference protection plate and a battery. The anti-interference protection plate comprises a top layer and an adjacent layer; the top layer is provided with an electric quantity detection assembly and a first signal ground, the first signal ground is circumferentially arranged around the electric quantity detection assembly; the adjacent layer comprises a second signal ground and a grounding circuit; a through hole is arranged between the top layer and the adjacent layer, the through hole is used for connecting the second signal ground and the first signal ground, and the through hole is adjacent to a grounding device of the electric quantity detection assembly. The anti-interference protection plate provided by the application is not easily interfered by the outside world by circumferentially arranging the first signal ground around the electric quantity detection assembly; the grounding loop of the signal ground is short, which can effectively reduce the impedance of the ground wire and improve the transmission efficiency of the current, thereby improving the anti-interference capability of the device.
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