Situation

A consumer electronics device manufacturer was developing a desktop laser engraver. They needed an efficient and low-noise thermal management solution for desktop laser equipment within an extremely compact mechanical space (103×56×56mm) for a 20W laser diode. They sought a thermal partner with integrated OEM/ODM cooling module development and manufacturing capabilities.

Task

To design and deliver a custom miniature heat pipe heatsink that provides B2B thermal solution service, meeting the following requirements:

• Effectively dissipate 20W of thermal load within the strict spatial constraint of 103×56×56mm.

• Utilize heat pipe temperature equalization technology to enhance heat dissipation uniformity and efficiency.

• Ensure system operating noise meets consumer-grade quiet standards, creating a compact low-noise cooling system to improve the end-user experience.

Action

1. Miniature Heat Pipe Heatsink Structure and Thermal Design：
   Adopted a stamp fin heatsink with a direct touch heat pipe structure (Stamp Fin Direct Touch Heat Pipe Design). The heat pipe rapidly transfers and uniformly spreads heat to the fin array. Combined with miniaturized thermal simulation and testing, the heat pipe layout and fin distribution were optimized to maximize heat dissipation area and airflow contact efficiency within the limited volume.

2. System-Level Low-Noise Thermal Management：
   Selected a low-noise, high-efficiency fan and optimized the airflow path through aerodynamic simulation to control noise levels while ensuring adequate airflow. Implemented a dynamic temperature control strategy that adjusts fan speed based on the laser's operating state, achieving an optimal balance between cooling performance and quiet operation.

3. Engineering Validation and Design for Manufacturing (DFM)：
   Conducted DFM analysis to ensure the heatsink was manufacturable and cost-effective. Built functional prototypes and performed performance and noise tests to validate the laser equipment thermal design effectiveness and user experience under specified customer conditions.

Result

• Successfully delivered a custom miniature heat pipe heatsink that efficiently dissipates heat from the 20W laser diode within the 103×56×56mm space, maintaining core temperature within a safe range.

• System operating noise was below 30dB, fully meeting consumer product quiet standards. The compact low-noise cooling system significantly enhanced product competitiveness.

• This case demonstrates our full-process heatsink engineering R&D capabilities for small form factor cooling solutions, from design and simulation to mass production, establishing us as a reliable B2B thermal design service partner.

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