Motor, rotating mechanism and single crystal furnace

By using a motor and rotating mechanism with a hollow channel and cooling structure during the single crystal silicon pulling process, contact heat dissipation of the crystal rod is achieved, which solves the limitation of traditional heat dissipation methods on the pulling speed and improves stability and production efficiency.

CN223414726UActive Publication Date: 2025-10-03LONGI GREEN ENERGY TECH CO LTD
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Patent Information

Application Number
CN202421918432.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-08
Publication Date
2025-10-03
Estimated Expiration
2034-08-08

AI Technical Summary

Technical Problem

During the single crystal silicon pulling process, the traditional non-contact heat dissipation method limits the pulling speed, and the contact heat dissipation solution may affect the movement stability of the crystal rod, resulting in unstable pulling or wire breakage.

Method used

A motor was designed with a hollow channel along the central axis and cooling structures set on the side walls and ends. Combined with a rotating mechanism and heat dissipation tooling, contact heat dissipation of the crystal ingot was achieved while maintaining the movement stability of the crystal ingot.

Benefits of technology

Through contact heat dissipation, the limitations of traditional heat dissipation levels are broken, the crystal pulling speed is increased, the production cost is reduced, and the risk of crystal breaking is reduced.

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Abstract

The utility model provides a motor, a rotating mechanism and a single crystal furnace. The motor is provided with a through hollow channel, and a cooling structure is arranged on the side wall and / or the end portion, close to the hollow channel, of the motor. According to the motor disclosed by the utility model, the hollow channel provides a space for growing, lifting and moving a crystal bar, and at least one of the side wall and the end part of the hollow channel is provided with the cooling structure, so that the motor can be suitable for a high-temperature working environment in the single crystal furnace.
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