Piezo-Bandage
A flexible printed circuit board with piezo elements in a car tire converts mechanical stress into electrical energy to charge the battery, addressing the inefficiency in energy generation from tire mechanics.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-04-02
AI Technical Summary
Existing vehicle tires do not effectively harness mechanical stress for energy generation and battery charging, and the integration of piezo elements within tires for this purpose is not efficiently addressed.
A flexible printed circuit board with mounted piezo elements is integrated into a car tire, generating current based on mechanical stress, and the generated current is directed to a battery via a cable through the bead channel.
The system efficiently converts mechanical stress into electrical energy to charge the car battery, enhancing energy harvesting and reuse potential of the piezo bandage.
Smart Images
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Abstract
Description
[0001] The piezo bandage (1) is a flexible printed circuit board (2) on which piezo elements (3) are mounted and soldered.
[0002] This piezo bandage (1) is permanently mounted inside a car tire (4).
[0003] The end of the circuit board (2), with the electrical connections, is connected to a cable (6) which is led through the bead channel (5) to the battery.
[0004] This directs the current generated by the journey and the mechanical stress on the piezo elements (3) via the cable (6) through the bead channel (5) to the battery.
[0005] The amount of current generated changes depending on the speed.
[0006] The car battery is charged with electricity to varying degrees with every movement of the vehicle.
[0007] Once the tire is worn out, the piezo bandage can be removed and reused.
Claims
[1] The design of the flexible printed circuit board (2) with the mounted piezo elements (3) as a piezo bandage (1). [2] The installation of the flexible printed circuit board (2) equipped with piezo elements (3) and wired into a car tire (4). [3] The connection of the flexible printed circuit board (2) via cable (6) through the bead cable (5) to the battery. [4] The reusability of the piezo bandage (1) after the expiry of the car tire (4).