Component Mounting Head Unit Thermal Management via Heat Transfer Member
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Solution Overview
Problem
Heat generated by motors in component mounting devices, particularly those using linear motors, gets trapped inside covered areas, leading to inefficient heat dissipation.
Innovation Solution
Incorporating a heat transfer member, such as multiple metal rod members or heat pipes, connected between the motor and a cover with a large surface area, along with multiple openings or grooves in the cover, to facilitate heat escape and improve thermal conductivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cover is provided to protect the motor and camera, then protection and structural integrity are improved, but heat dissipation deteriorates because heat gets trapped inside
Solution Approach 1:
The cover is segmented by providing multiple openings (first openings and second openings) at different locations, allowing heat to escape through multiple pathways while maintaining protective coverage of internal components
Solution Approach 2:
A heat transfer member is introduced as an intermediary between the motor and the cover, facilitating heat conduction from the heat-generating motor to the cover's external surfaces where heat can be dissipated to the surrounding environment
2Manufacturing precision
If a linear motor is used to move the nozzle vertically, then positioning precision and speed are improved, but heat generation increases significantly
Solution Approach 1:
The heat transfer member acts as an intermediary that conducts heat away from the linear motor, preventing heat accumulation that would affect positioning precision while allowing the motor to maintain its high-precision performance
Solution Approach 2:
The cover, which initially traps heat, is transformed into a heat dissipation structure by adding openings and heat transfer members, converting the harmful heat trap into a beneficial heat dissipation pathway
3Adaptability or versatility
If the camera is positioned inside the covered area to image components, then imaging functionality is improved, but the camera is exposed to heat influence
Solution Approach 1:
The heat transfer member serves as a thermal intermediary that conducts heat away from the camera's environment, creating a thermally favorable zone for the camera while maintaining its imaging position inside the cover
Solution Approach 2:
The openings are strategically positioned to create localized cooling zones, particularly protecting the camera area from heat while maintaining overall cover protection
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
Efficiently releases heat generated by the motor, protecting the camera from heat influence and enhancing the overall cooling efficiency of the component mounting device.
Implementation Method 1
a heat transfer member connecting the cover to the drive source or a frame of the drive source, the heat transfer member being configured to allow heat generated by the drive source to escape to the cover
Implementation Method 2
the cover may include multiple openings. Because this allows air to flow between the inside covered by the cover and the outside via the openings as the head unit moves, heat inside the cover is released even more efficiently
Data Source
AI summary
A component mounting device head unit includes a head main body, a nozzle being provided on the head main body, a drive source, a cover, and a heat transfer member. The nozzle is configured to pick up a component. The drive source is configured to transfer moving power to at least one of the head main body and the nozzle. The cover covers the drive source. The heat transfer member connects the cover to the drive source or a frame of the drive source, and the heat transfer member is configured to allow heat generated by the drive source to escape to the cover.