The 7015 DC Axial Fan for Power Supply is a customized high-precision heat dissipation component specially developed for various switching power supplies, power adapters, industrial power modules, and power distribution equipment. Named after its 70mm × 70mm × 15mm ultra-thin standardized size, this fan perfectly matches the internal installation space of most mainstream power supply products on the market, solving the heat dissipation pain point of compact power supply equipment with narrow internal space and high heat generation density. As a special fan for power supply heat dissipation, it fully considers the working characteristics of power equipment: long-term continuous operation, instantaneous high-temperature heat generation, and strict requirements for stability and safety, and carries out targeted optimization in structural design, performance parameters, and material selection. In terms of structural design, the 7015 ultra-thin body adopts a lightweight and high-strength integrated plastic frame, which is made of flame-retardant and high-temperature resistant PBT material, with good compression resistance and deformation resistance. The five-blade aerodynamic impeller is precisely designed through fluid simulation technology, which can maximize the air output per unit time under the limitation of ultra-thin size, effectively taking away the heat generated by power supply chips, transformers, and inductors during operation. The ultra-thin 15mm thickness design is perfectly compatible with thin-type switching power supplies, miniature industrial power modules, and embedded power supply equipment, avoiding the installation space waste and size mismatch problems of traditional thick fans. In terms of performance, this power supply-specific DC axial fan mainly supports 12V and 24V DC working voltages, which are the most common voltage specifications for industrial and civilian power supplies. The rated speed ranges from 3000 RPM to 6000 RPM, with moderate static pressure and large air volume, which can quickly dissipate the concentrated heat inside the power supply, prevent the power supply from overheating, tripping, burning, and other faults, and ensure the stable output of power voltage and current. The fan adopts a high-efficiency brushless DC motor, with low operating power and high energy conversion rate, which will not cause additional power consumption burden to the power supply equipment. The built-in over-current, over-voltage, and locked-rotor protection circuits can automatically cut off the power supply for protection when the fan is stuck, short-circuited, or overloaded, effectively avoiding secondary damage to the power supply equipment caused by fan failure. In terms of service life and stability, the fan is equipped with high-quality oil-impregnated bearings or double ball bearings. The oil-impregnated bearing model has low cost and low noise, suitable for civilian ordinary power supplies; the double ball bearing model has stronger anti-vibration performance and longer service life (up to 50,000 hours), suitable for industrial high-load power supply equipment. All products pass strict high-temperature aging tests, and can work stably for a long time in the power supply’s internal high-temperature environment of up to 70℃. In terms of application scenarios, the 7015 DC axial cooling fan is widely used in computer power supplies, LED power adapters, industrial switching power supplies, communication power modules, monitoring power supplies, and new energy vehicle on-board power supplies. Its standardized installation hole spacing and size can realize seamless replacement of old and new fans, which is convenient for equipment production assembly and later maintenance and replacement. In addition, the fan has low operating noise, no electromagnetic interference, and complies with RoHS environmental protection standards, meeting the safety and environmental protection certification requirements of various power supply products, and is a universal and essential core heat dissipation accessory in the power supply industry.