Method for joining hollow conductors

Mechanical sealing, solder masks, and sealing devices prevent solder ingress into waveguide windings, ensuring reliable electrical connections and unobstructed cooling in electric machines.

WO2026120015A1 Publication Date: 2026-06-11HYPERDRIVES GMBH

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
HYPERDRIVES GMBH
Filing Date
2025-12-03
Publication Date
2026-06-11

AI Technical Summary

Technical Problem

The challenge in joining waveguide windings in electric machines is to establish a reliable electrical connection without obstructing the hollow channels, which is crucial for cooling, as methods like laser welding and wave soldering can lead to solder ingress and clogging, while soldered joints are prone to blockage.

Method used

A method involving mechanical sealing, solder masks, passivation, or sealing devices is employed to prevent solder from entering the hollow channels during wave soldering, ensuring a reliable electrical connection without obstructing the cooling path.

🎯Benefits of technology

This method ensures effective electrical connections with minimal interference to the cooling channels, maintaining the functionality and efficiency of the waveguide structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

A method for joining hollow conductors is provided, comprising the steps: inserting hollow conductors into a stator of an electric machine, and joining ends of at least some of the hollow conductors by means of soldering in order to electrically connect these hollow conductors to one another, wherein before or during the joining step, the hollow conductors are acted upon in such a manner that solder is prevented from penetrating into or adhering to a hollow channel of the hollow conductor.
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