A visual card
By combining a power supply scheme with a battery module and an unconnected power module, and by using a power management module to detect and control the power supply path, the problem of unstable power supply to the visual card was solved, enabling the visual card to work stably in different scenarios.
CN224536531UActive Publication Date: 2026-07-21GUANGDONG CHUTIAN DRAGON SMART CARD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG CHUTIAN DRAGON SMART CARD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
The visual card cannot work safely and stably due to insufficient power supply reliability. In particular, the voltage is unstable under external electromagnetic interference, which affects the continuous power supply to the safety module.
Method used
A power supply scheme combining a battery module and a contactless power module is adopted. The power management module detects the power supply voltage and controls the switching module to switch the power supply path, ensuring a stable power supply for the visual card in different scenarios.
Benefits of technology
The power supply reliability of the visual card has been improved, ensuring its normal operation in various scenarios and guaranteeing the stable operation of the security module and display module.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224536531U_ABST
Abstract
The application provides a visual card applied to the technical field of smart card, which comprises a battery module, a non-contact power module, a power management module and a display module. The battery module is used for supplying power to the security module and the display module when the visual card enters a non-contact electromagnetic field and the voltage of the non-contact power module is less than a first preset threshold. The non-contact power module is used for acquiring power from an external terminal device when the visual card is in the non-contact electromagnetic field, and supplying power to the battery module when the voltage of the non-contact power module is greater than or equal to the first preset threshold and higher than the voltage of the battery module. The power management module is used for controlling the battery module to supply power when the visual card enters the non-contact electromagnetic field, the voltage of the non-contact power module is less than the voltage of the battery module and greater than or equal to the first preset threshold. The switch module is used for controlling the on-off of the battery module path or the non-contact power module path under the control of the power management module. The display module is used for displaying information under the control of the security module, and can solve the problem that the visual card cannot work safely and stably due to insufficient power supply reliability.
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