Rebar Tying Tool Layout for Control Board Heat Isolation
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Solution Overview
Problem
The existing rebar tying tools face operational defects due to excessive heat transfer from the twisting motor to the control board, leading to temperature rises and potential defects in motor control.
Innovation Solution
The rebar tying tool design positions the control board below the connection between the grip and the body, reducing heat transfer from the twisting motor and incorporating a battery pack and control board arrangement that shortens wiring lengths, thereby suppressing temperature rises and preventing operational defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the control board is housed in the body together with the twisting mechanism, then the device structure is compact and integrated, but heat generated by the twisting motor is transferred to the control board causing temperature rise and potential operational defects
Solution Approach 1:
The control board is segmented from the main body housing and positioned in a separate location (below the connection between grip and body). This spatial segmentation isolates the heat-sensitive control board from the heat-generating twisting mechanism while maintaining overall device integration through strategic component placement.
2Temperature
If the control board is disposed below the connection between grip and body, then heat transfer to the control board is reduced, but the wiring length increases
Solution Approach 1:
The battery pack is strategically positioned adjacent to the control board location, creating a localized power supply zone. This local quality arrangement allows wiring to connect the control board to the nearest power source (battery pack) rather than extending wiring to the main body housing, thereby minimizing wiring length despite the control board's relocated position.
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
This configuration effectively reduces the temperature of the control board, preventing operational defects and simplifying motor control while maintaining efficient operation.
Implementation Method 1
heat generated by the operation of the twisting motor is transferred significantly less to the control board
Data Source
AI summary
A rebar tying tool may include a twisting mechanism, a body, a grip, and a control board. The twisting mechanism may include a twisting motor and a holder configured to twist a wire around rebus by operation of the twisting motor. The body may house the twisting mechanism. The grip may be disposed below the body and configured to be gripped by an operator. The control board may be configured to control the operation of the twisting motor. The control board may be disposed below a connection between the grip and the body.