Cooling structure for permanent magnet roller
By adopting a cooling structure with wavy water channel walls and reinforcing ribs in the permanent magnet drum, combined with air cooling and water cooling cycles, the problems of low efficiency and limited space in traditional cooling methods are solved, and efficient heat dissipation and improved power density are achieved.
CN223378985UActive Publication Date: 2025-09-23CHINA COAL XINJI INTELLIGENT TECH CO LTD
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Patent Information
- Application Number
- CN202422768274.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-13
AI Technical Summary
Technical Problem
The cooling method of traditional permanent magnet electric drums is inefficient, and the limited space makes installation and maintenance difficult. It cannot effectively dissipate heat, affecting equipment performance and stability.
Method used
The cooling structure adopts a wavy water channel wall and reinforced ribs, combined with end cover blades and wind guide covers to form an air cooling and water cooling cycle, increase the heat dissipation area and optimize the cooling water channel layout.
Benefits of technology
Improves cooling efficiency by 40%, enhances heat dissipation capacity, and increases power density without increasing drum volume, ensuring equipment stability.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to a heat exchange device, in particular to a cooling structure for a permanent magnet roller. Comprising a cylinder, a water channel wall, permanent magnets and a shaft, the water channel wall is of a wave-shaped structure, the water channel wall is arranged along the inner wall of the cylinder and connected with the inner wall of the cylinder, a plurality of water cooling grooves are formed between the outer wall of the water channel wall and the inner wall of the cylinder in the axial direction of the cylinder, and the water cooling grooves are sequentially connected in series; a water inlet pipe and a water return pipe are arranged in the shaft, the first water cooling tank is connected with the water inlet pipe through a first water passing pipe, and the last water cooling tank is connected with the water return pipe through a second water passing pipe; end cover fan blades are arranged at the end covers, and the outer parts of the end covers are communicated with the space between the drum body and the drum cover through the end cover fan blades; the space between the roller body and the roller cover is communicated with the space between the inner wall of the water channel wall and the outer wall of the shaft; compared with a traditional cooling structure, the heat dissipation efficiency can be improved by 40%, the size of the roller cannot be increased while the heat load is improved, and the power density is greatly improved.
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