Heat dissipation structure and its manufacturing method

The heat dissipation structure with coaxially joined pipes and integrated fins addresses the need for efficient cooling and mechanical strength at a lower cost, suitable for electric motors in various applications.

JP7864062B2Active Publication Date: 2026-05-22NHK SPRING CO LTD
View PDF 11 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
NHK SPRING CO LTD
Filing Date
2022-12-16
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Existing heat dissipation structures for electric motors, such as those used in motors, inverters, pumps, and compressors, lack a novel structure that balances high mechanical strength, efficient cooling, and cost-effectiveness.

Method used

A heat dissipation structure comprising a first pipe and a second pipe joined coaxially through diffusion bonding or brazing, with fins extending from their outer walls, and optionally incorporating a base and flanges for enhanced support and integration, allowing for efficient heat transfer and mechanical strength.

Benefits of technology

The structure achieves high cooling efficiency, mechanical strength, and cost-effectiveness by integrating fins with the pipes, enabling efficient heat dissipation and supporting electric motors while being lightweight and suitable for applications requiring high reliability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007864062000001
    Figure 0007864062000001
  • Figure 0007864062000002
    Figure 0007864062000002
  • Figure 0007864062000003
    Figure 0007864062000003
Patent Text Reader

Abstract

To provide a heat radiation structure that has excellent mechanical strength and cooling efficiency, and to provide a method for manufacturing the heat radiation structure at low cost.SOLUTION: A heat radiation structure includes a first pipe, a second pipe and a plurality of fins. The second pipe is positioned under the first pipe and connected to the first pipe so as to be coaxial with the first pipe. Each of the fins is integrated with the first pipe and / or the second pipe and extends from an outside wall of the first pipe and / or the second pipe.SELECTED DRAWING: Figure 1
Need to check novelty before this filing date? Find Prior Art