Bicycle Battery Heat Sink Position Sensing for Charge Control
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Solution Overview
Problem
Existing energy storage devices for bicycles face challenges with heat dissipation, particularly when the heat sink is blocked or airflow is restricted, leading to potential overheating. Additionally, current systems lack efficient communication and configuration capabilities, especially when the user is out of Bluetooth range.
Innovation Solution
The proposed energy storage device incorporates a housing with a heat sink that can move between heat dissipation and non-heat dissipation positions, equipped with a positional sensor to adjust the charge rate accordingly. This device also features a Wi-Fi enabled communication system that allows for remote configuration and status monitoring via a smartphone or remote server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the charge controller charges the battery at a high charge rate, then the charging efficiency is improved, but the heat sink may become blocked or airflow restricted causing overheating
Solution Approach 1:
The patent makes the heat sink dynamically movable between a first position (exposed to ambient environment for heat dissipation) and a second position (protected position). The positional sensor detects the heat sink's location and the charge controller adjusts the charge rate accordingly - allowing high charge rates when the heat sink is in the first position, and reducing charge rates when in the second position, thus resolving the contradiction between charging efficiency and heat management
Solution Approach 2:
The patent implements a feedback loop where the positional sensor continuously monitors the heat sink's position and communicates this information to the charge controller. The charge controller uses this feedback to dynamically adjust the charge rate, ensuring optimal charging efficiency while preventing overheating based on real-time heat sink positioning
2Ease of operation
If the user is out of Bluetooth range of the primary device, then the user cannot retrieve status information or make system changes, but the user still needs access to the system
Solution Approach 1:
The patent introduces a secondary device as an intermediary that can communicate with the energy storage device independently of the primary device. When the user is out of Bluetooth range of the primary device, the secondary device serves as a mediator to retrieve status information and transmit configuration data, ensuring continuous user accessibility without loss of system information
Solution Approach 2:
The patent enables the secondary device to copy communication capabilities from the primary device. The secondary device can establish its own Bluetooth connection with the energy storage device, effectively creating a duplicate communication channel that allows users to access and configure the system even when the primary device is unavailable or out of range
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
The solution effectively prevents overheating by adjusting the charge rate based on the heat sink's position and enables seamless communication and configuration even when the user is out of Bluetooth range, enhancing the overall performance and usability of the energy storage device.
Implementation Method 1
a heat sink coupled to the housing. The heat sink is in a heat dissipation position when the housing is in the first position
Implementation Method 2
the heat sink is exposed to the ambient environment and sufficient air flow to dissipate heat from the heat sink
Implementation Method 3
the positional sensor may be configured as an orientation sensor
Implementation Method 4
the positional sensor may be configured as a proximity sensor
Data Source
AI summary
An energy storage device for a bicycle includes a housing moveable between at least a first position and a second position, at least one battery cell disposed in the housing, and a heat sink coupled to the housing. The heat sink is in a heat dissipation position when the housing is in the first position and the heat sink is in a non-heat dissipation position when the housing is in the second position. The energy storage device includes a positional sensor coupled to the housing and configured to sense when the housing is in the second position. In various embodiments, the positional sensor may be configured as an orientation sensor or as a proximity sensor. A bicycle communication system may include a Wi-Fi enabled energy storage system.