Handlebar Switch Layout With Wireless Control for E-Bike Components

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Solution Overview

Problem

Existing human-powered vehicle systems lack an efficient and user-friendly method for controlling electric components, such as gears and brakes, which complicates the operation of electric bicycles and other human-powered vehicles.

Innovation Solution

An electrical switch device with an electrical switch unit, wireless communicator, and connecting parts that allow for the generation and transmission of signals to operate electric components, including the integration of additional switch devices and wireless communication for simplified control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If electric components are integrated into human-powered vehicles, then vehicle functionality is improved, but operation complexity increases

Engineering Contradiction:
Improvevehicle functionalityVSAvoidoperation complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical control systems with electrical control. Electric switches and wireless communicators transmit signals electronically to operate electric components (gears, brakes, lights), substituting traditional mechanical linkages and cable systems. This reduces physical complexity while maintaining or enhancing vehicle functionality.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The electrical switch device integrates multiple control functions into a single unit. The switch unit can control multiple electric components (gears, brakes, lights) through a unified interface, allowing one device to perform multiple operations that would traditionally require separate mechanical control systems.

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

2Adaptability or versatility

If multiple control components are integrated into the handlebar, then control functionality is improved, but handlebar structure complexity increases

Engineering Contradiction:
Improvecontrol functionalityVSAvoidhandlebar structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The electrical switch unit is disposed at least partly outside the handlebar, with components arranged in a nested or integrated manner. The wireless communicator is inserted into the internal space of the handlebar, while the switch unit extends outward, creating a compact arrangement that accommodates multiple control functions without significantly increasing handlebar structure complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The control system is divided into separate functional modules: the electrical switch unit for signal generation, the wireless communicator for signal transmission, and the power source for energy supply. This segmentation allows each component to be optimized independently and simplifies the overall integration into the handlebar structure.

Inventive Principle:
Principle #1Segmentation

3Speed

If wireless communication is used to operate electric components, then signal transmission speed is improved, but power consumption increases

Engineering Contradiction:
Improvesignal transmission speedVSAvoidpower consumption
Core Design Contradiction:
SpeedVSUse of energy by moving object

Solution Approach 1:

The wireless communicator transmits signals periodically or on-demand rather than continuously. The electrical switch unit generates control signals only when the user operates the switches, and the wireless communicator transmits these discrete signals, reducing overall power consumption compared to continuous transmission while maintaining fast signal transmission speed when needed.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS11827306B2Operating system and electrical switch device for human-powered vehicle
Publication Date: 2023.11.28 SHIMANO INC
  • US11827306B2 patent drawing
  • US11827306B2 patent drawing
  • US11827306B2 patent drawing

AI summary

An electrical switch device includes an electrical switch unit, a wireless communicator, a power source, an electrical cable, and a connecting part. The electrical switch unit is at least partly disposed outside of a handlebar. The wireless communicator is inserted to an internal space of the handlebar. The power source and the wireless communicator are separated away from the electrical switch unit and arranged at different positions from the electrical switch unit. The electrical cable is configured to electrically connect the electrical switch unit to the wireless communicator and the power supply. The connecting part is electrically connected to the electrical cable. The connecting part is configured to electrically and detachably connect the electrical switch unit to the wireless communicator and the power supply.