Modular power generation system, consisting of at least one miniature three-phase generator, mountable on a luggage wheel or the hub for generating electrical energy through luggage wheel or hub rotation for autonomous power supply of batteries and mobile devices.
A modular power generation system using miniature three-phase generators on luggage wheels or hubs addresses the limitations of conventional dynamos by generating stable DC voltage and enabling fast-charging, suitable for mobile devices and easily integrated into luggage wheels or hubs.
Patent Information
- Application Number
- DE202025002937
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-10-05
- Publication Date
- 2025-12-04
- Estimated Expiration
- 2035-10-31
AI Technical Summary
Conventional bicycle dynamos provide limited and unstable voltage, unsuitable for modern mobile devices requiring regulated DC voltage and fast-charging capabilities, and there is a need for a scalable, compact, and reliable power generation system for cargo bikes and scooters that can operate independently at low speeds.
A modular power generation system comprising miniature three-phase generators mounted on luggage wheels or hubs, converting mechanical movement into electrical energy, with rectification and voltage regulation, and supporting fast-charging via a USB-PD chip, suitable for powering devices directly or storing energy temporarily.
The system generates stable DC voltage, supports fast-charging, and is self-sufficient, modular, and easily integrated into luggage wheels or hubs, providing autonomous power for various mobile devices.
Abstract
Description
1. Technical field
[0001] The invention relates to a modular energy generation system for producing electrical energy using rotating miniature generators that are mounted on suitcase wheels, suitcase scooters, or hubs. This system provides energy autonomously even at low speeds and is suitable for all mobile devices. The energy generation system, consisting of a rechargeable, replaceable battery, rectifier, DC-DC converter, electronic module, USB-PD chip, and USB output interface, is mounted on a flat support platform and installed inside the suitcase. The energy generation system is directly connected to the miniature generators via a cable. The generated energy serves to power batteries or mobile devices autonomously. When the vehicle is in motion, the wheel or hub rotates, mechanically driving the generators. The generators produce three-phase alternating current, which is converted into direct current by the rectifier.The DC-DC converter regulates the voltage to the desired level. Power is supplied via a USB-PD chip for fast charging or via a USB output interface. The energy is either delivered directly to the device or stored temporarily. The system is easy to install and replace. 2. State of the art
[0002] Conventional bicycle dynamos deliver limited and often unstable voltage, usually only sufficient for powering lights. However, modern mobile devices require regulated DC voltage with higher power output and optional fast-charging capability. There is a need for a scalable, compact, and reliable power generation system for cargo bikes, scooters, or hub motors that can provide independent power even at low speeds and is suitable for all mobile devices. 3. Object of the invention
[0003] The objective is to provide a modular, easily retrofitted power generation system for luggage wheels or hubs that utilizes one or more mini-generators to convert mechanical movement into electrical energy. It generates and delivers power autonomously, even at low speeds, and is suitable for all mobile devices. The system rectifies and regulates the power and supports fast-charging protocols. It can directly and autonomously power batteries or devices. The system can be quickly and easily integrated into luggage wheels or hubs and can be mounted inside the luggage case. 4. Solution to the task
[0004] The task is accomplished by the fact that, while driving, the wheel or hub rotates, mechanically driving the generators. The generators produce three-phase alternating current, which is converted to direct current via the rectifier, and the DC-DC converter regulates the voltage to the desired level. Optionally, fast charging is enabled via a USB-PD chip, or power is supplied via a USB output interface. The energy is either delivered directly to the end device or temporarily stored in a battery. 5. Advantages of the invention • Self-sufficient and mobile • Independent of external power supply • Modularly expandable, interchangeable, retrofittable • Ready for use at any time • To increase the power capacity, it can be used multiple times on each wheel or hub. • Easy and inexpensive to manufacture • Can be integrated into any type of suitcase • Environmentally friendly and low-maintenance 6. Structure and Function
[0005] Components: 1. Suitcase wheels, suitcase rollers, the hub, suitcase interior 2. Miniature three-phase generator(s), attached to the luggage wheel or hub 3. Mechanical coupling through wheel rotation while driving or by rotating the wheel and hub. 4. Three-phase AC output 5. Rectifier module for conversion to DC 6. DC-DC converter for voltage regulation (e.g. to 5 V, 9 V, 12 V) 7. USB-PD controller for fast charging 8. USB output interface and induction 9. Energy storage - battery or supercapacitor 10. Device - e.g. smartphone, GPS, power bank and other electronic devices
Claims
[1] Modular power generation system, consisting of at least one miniature three-phase generator, mountable on a wheel or hub for generating electrical energy by rotating the wheel or hub for the autonomous power supply of batteries and mobile devices. Power generation system comprising at least one mechanically driven power source, an electronic processing unit and an output unit for supplying external devices, characterized by that the energy source is a rotating generator and the processing unit includes a rectifier, a DC-DC converter and a USB output. [2] System according to claim 1, wherein the generated alternating voltage is converted into direct voltage via a rectifier module. [3] System according to claim 2, wherein the DC voltage is regulated to a defined output voltage via a DC-DC converter. [4] System according to claim 3, wherein the output voltage is used via a USB output interface and USB-PD controller for fast charging of a mobile device. [5] System according to one of the preceding claims, wherein the energy is temporarily stored in an energy storage device (battery) or supercapacitor or supplied directly. [6] System according to one of the preceding claims, wherein several generators are operated in parallel to scale the power. [7] System according to one of the preceding claims, wherein the components are modular and can be mounted on different supports, are interchangeable and can be retrofitted.