Automatic shut-off car charger
VN128898APending Publication Date: 2026-09-15AO TRAN BANG
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Patent Information
- Application Number
- VN1202501980
- Authority / Receiving Office
- VN · VN
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-09-15
Smart Images

Figure VN1202501980_0
Abstract
The invention relates to a device that automatically cuts off power to the interior accessories of an automobile when the automobile is not in operation. This device comprises: an electrical relay with three different outputs: an input, an output, and a ground wire; a positive-ended cigarette lighter socket connected to one input; a USB connector connected to the ground wire; and an OSB2 socket connected to one output. While the automobile is in operation, this device continues to supply power to the interior accessories, but when the automobile stops, it opens the relay circuit, cutting off power from the vehicle's battery to these interior accessories.
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