Bicycle Headlamp with Integrated Buffer Battery and Multi-Pole Socket

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Bicycle headlights with dynamo systems generate excess energy, but existing solutions do not effectively utilize this excess for additional functions like charging devices or providing enhanced lighting features beyond basic visibility.

Innovation Solution

A multifunction headlight with an integrated buffer battery, electronic control, and multi-pole connection socket that allows for manual or automatic activation of light-emitting diodes, enabling additional functions such as charging external devices, cornering lights, and floodlights, while maintaining constant voltage for power supply.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a buffer battery is integrated into the headlight to enable additional functions like device charging and enhanced lighting, then the versatility and functionality of the headlight system is improved, but the device complexity and structural complexity increases

Engineering Contradiction:
ImprovefunctionalityVSAvoidstructural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The headlight system is designed to perform multiple functions using a single integrated structure. The buffer battery serves dual purposes: maintaining lighting functions during temporary power interruptions and providing power for external device charging. The electronic control unit manages multiple operations including lighting control, battery management, and power distribution to external devices, all through a single system architecture.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the buffer battery, electronic control unit, and power supply functions into a single integrated headlight housing. The connection socket is integrated into the existing headlight structure, and the switching element is incorporated into the handlebar assembly, merging multiple functional components into unified structures to manage complexity.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If multiple light-emitting diodes are switched separately in groups for different lighting functions, then the lighting versatility and control flexibility is improved, but the electronic control complexity increases

Engineering Contradiction:
Improvelighting control flexibilityVSAvoidelectronic control complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The light-emitting diodes are divided into separate switchable groups: daytime running light group, main light group, and additional lighting group. Each group can be independently controlled through the electronic control unit, allowing selective activation based on lighting conditions and user requirements. This segmentation enables versatile lighting patterns while maintaining manageable control through a single electronic control unit.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If a function connection cable with switching element is used to control additional functions, then the ease of operation for additional functions is improved, but the device complexity and number of components increases

Engineering Contradiction:
Improvecontrol convenienceVSAvoidnumber of components
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

A function connection cable serves as an intermediary component between the handlebar area and the headlight system. The cable includes a switching element that the rider can operate conveniently from the handlebar position, which then transmits control signals to the electronic control unit in the headlight. This intermediary approach provides ease of operation for additional functions while keeping the main headlight structure relatively simple.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Duration of action of moving object

If the buffer battery is designed with sufficient capacity for extended lighting and device charging, then the duration of action and energy availability is improved, but the weight and volume of the headlight system increases

Engineering Contradiction:
Improveenergy availability durationVSAvoidheadlight system weight
Core Design Contradiction:
Duration of action of moving objectVSWeight of moving object

Solution Approach 1:

The buffer battery is designed with specific parameter ranges: voltage of at least 5.5V and capacity of at least 30 mAh. These parameters are optimized to provide sufficient energy for maintaining lighting functions and charging external devices while attempting to minimize weight. The electronic control unit monitors battery status and manages power distribution to maximize the utility of the available energy capacity.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances cyclist safety and comfort by providing extended lighting capabilities and device charging, maintaining visibility with automatic control and manual intervention options, without requiring the rider to access the headlight switch.

Implementation Method 1

A bicycle headlight for a bicycle, in particular a bicycle with an additional electric drive, has a headlight which can be electrically connected to a dynamo

Methodology Applied
Scientific EffectDynamo electromagnetic generation: Electromagnetic Induction

Implementation Method 2

integrate a buffer battery into the headlight, which on the one hand can maintain all functions of the lighting for a period of a few minutes

Methodology Applied
Scientific EffectBuffer battery energy storage: Accumulator (energy)

Implementation Method 3

a plurality of light-emitting diodes

Methodology Applied
Scientific EffectLight-emitting diode electroluminescence: Electroluminescence

Data Source

PatentEP2684783B1Multi-function headlamp with function connection cable
Publication Date: 2016.06.01 BUSCH & MULLER KG
  • EP2684783B1 patent drawingFigure 1

AI summary

The invention relates to a headlight (4) for a two-wheeler (1), in particular a bicycle with an additional electric drive (2), wherein the headlight (4) is electrically connectable to a dynamo (3) and includes a housing (5) with at least one light emission opening (6), a plurality of light-emitting diodes (7, 8, 9, 10, 11), a buffer accumulator (12) integrated into the housing, at least one electronic control (13) for manual and/or automatic situation-appropriate control of the light-emitting diodes (7, 8, 9, 10, 11) and at least one multi-pole (i, j, k, l, m, n) connection, in particular via a connector socket (14). In addition, the headlight (4) has one, several or all of the following features: the buffer battery (12) is designed for a voltage of at least 5.5 V and has a capacity of at least 30 mAh, there are at least three light-emitting diodes (7, 8, 9, 10, 11) which are connected separately in at least two groups,wherein one group can be switched as daytime running lights and at least one as main lights, the connection socket (14) is connected to the buffer battery (12) in such a way that a constant voltage for a power supply output (15) can be taken from the connection socket (14), the connection socket (14) is connected to the electronic control (13) in such a way that various functions of the LEDs (7, 8, 9, 10, 11) can be controlled via a function connection cable (20) with switching element (22) connected to the connection socket (14), and/or a manually operated switch (16) on the housing (5) allows at least the headlight to be switched on and off when no switching element (22) is connected to the connection socket (14).