Bicycle Shifter Wireless Antenna Placement
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Solution Overview
Problem
Existing bicycle operating devices lack an optimal arrangement of hydraulic units, wireless communicators, and power supplies, leading to potential interference with radio waves and heat dissipation, as well as a lack of compactness and ease of operation.
Innovation Solution
A bicycle operating device comprising a base member with a hydraulic unit, wireless communicator, and power supply arranged such that the wireless communicator is closer to the lateral surface than the hydraulic unit, allowing for efficient radio wave transmission and heat dissipation, and utilizing the space between the hydraulic unit and lateral surface for compact design and easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the hydraulic unit, wireless communicator, and power supply are arranged in a conventional manner, then the device structure is simple, but radio wave transmission is blocked and heat dissipation is poor
Solution Approach 1:
The patent applies local quality by positioning the wireless communicator at a specific location (closer to the lateral surface than the hydraulic unit) where radio wave transmission is not blocked, and placing the power supply in a region favorable for heat dissipation. This localized optimization of component positions resolves the contradiction between maintaining simple device structure and ensuring reliable radio wave transmission and heat dissipation.
2Reliability
If the wireless communicator is positioned away from the lateral surface, then radio wave transmission is less blocked, but the device size increases
Solution Approach 1:
The patent resolves this contradiction by utilizing the lateral dimension of the base member. The wireless communicator is positioned closer to the lateral surface, effectively using the side space of the base member rather than extending the overall device length. This dimensional approach allows radio wave transmission without significantly increasing device volume.
3Temperature
If the power supply is positioned away from the lateral surface, then heat dissipation is improved, but the device complexity increases
Solution Approach 1:
The patent applies local quality by positioning the power supply in a specific region where heat dissipation conditions are favorable. This localized placement optimizes thermal management without requiring complex overall device redesign, thus resolving the contradiction between heat dissipation efficiency and device complexity.
Data Source
AI summary
A bicycle operating device comprises a base member, an operating member, a hydraulic unit, an electrical switch, a wireless communicator, and a power supply. The base member includes a first end to be mounted to a bicycle handlebar and a second end opposite to the first end. The operating member is pivotally coupled to the base member about a first pivot axis. The wireless communicator is electrically connected to the electrical switch to wirelessly transmit a signal to an additional component in response to an input operation. The power supply is electrically connected to the wireless communicator to supply electrical power to the wireless communicator. The hydraulic unit at least partly overlaps with at least one of the wireless communicator and the power supply when viewed from a first direction parallel to the first pivot axis.