Carbon nanotube-coated heat spreader

By combining the composite thermal conductivity of carbon nanotubes and aluminum alloy tubes with the phase change heat storage characteristics of the paraffin layer, and by using forced convection and limiting bolt design, the problem of low heat dissipation efficiency of carbon nanotube-coated radiators in high-temperature environments is solved, achieving a more efficient heat dissipation effect and easy-to-disassemble fan connection.

CN224401908UActive Publication Date: 2026-06-23SICHUAN DONGHAO INTELLIGENT INNOVATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN DONGHAO INTELLIGENT INNOVATION TECHNOLOGY CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing carbon nanotube-coated heat sinks have limited heat dissipation efficiency in high-temperature environments, mainly relying on natural convection, which results in low heat dissipation efficiency.

Method used

A composite thermally conductive structure composed of carbon nanotubes and aluminum alloy tubes is used, combined with the phase change heat storage characteristics of the paraffin layer. Forced convection is achieved through exhaust fans and ventilation fans to enhance the heat dissipation effect. The fan is stably connected and easy to disassemble through limit bolts and wedge block structure.

Benefits of technology

The heat dissipation efficiency of the radiator has been improved. Through the combined effect of heat conduction and forced convection, the heat dissipation capacity has been enhanced, and the fan connection structure design has improved ease of use and reliability.

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Abstract

The utility model relates to radiator technical field discloses a carbon nanotube cladding type radiator, including base, the base top is connected with the fixed ring of screw thread, the fixed ring inner wall is connected with carbon nanotube of screw thread, carbon nanotube inner wall is fixedly connected with aluminium alloy pipe, the aluminium alloy pipe inner wall is pasted with paraffin layer, carbon nanotube and aluminium alloy pipe top all are fixedly connected with I -shaped support beam, the top of I -shaped support beam is fixedly connected with the top plate, the recess is seted up in the top plate surface, the base right side is provided with the exhaust fan, the base left side is provided with the exhaust fan, the exhaust fan and exhaust fan bottom all are fixedly connected with the connecting block. In the utility model, the composite heat conduction structure that carbon nanotube, aluminium alloy pipe and paraffin layer constitute passes through heat conduction mode and quickly transfers heat, realizes forced convection through starting the radiator fan, and the synergistic heat dissipation effect is formed with the composite heat conduction structure, and the heat dissipation effect of radiator is strengthened.
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