Permanent magnet of cylindrical linear generator for wave power generation and assembly method

Through the modular assembly method of T-shaped magnetic tiles and limiting devices, the problems of splicing difficulty and assembly cost of permanent magnet arrays of cylindrical linear generators are solved, and efficient and low-cost permanent magnet assembly is achieved, which is suitable for wave energy power generation devices.

CN120377539AInactive Publication Date: 2025-07-25TIANJIN UNIV
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Patent Information

Application Number
CN202510540364.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2025-07-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The permanent magnet arrays of existing cylindrical linear generators are difficult to splice into rings, the assembly tools are not universal, and the processing and assembly cost is high.

Method used

The modular assembly method of multiple T-shaped magnetic tiles and limiting devices is adopted, and the limiting device is fixedly connected to the secondary iron core structure through the limiting device to form a permanent magnet array with approximately radial magnetic properties, avoiding the use of additional clamping devices and glue bonding.

Benefits of technology

Reduces repulsion between magnetic tiles, simplifies assembly process, reduces costs, improves modular manufacturing levels, and maintains the close radial charging level of electromagnetic properties.

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Abstract

The invention discloses a permanent magnet of a cylindrical linear generator for wave power generation and an assembly method, and belongs to the technical field of wave power generation. The structure comprises a T-shaped magnetic shoe, a slotted circular-tube-shaped secondary iron core main shaft and a steel rib limiting device, and a permanent magnet array approximately magnetized in the radial direction is formed through modular splicing. The edges of the T-shaped magnetic shoes are subjected to rounding treatment, and gaps are reserved between the adjacent magnetic shoes to weaken repulsive force; the secondary iron core is made of 10 # steel, and the grooves and the steel ribs are rapidly assembled through positive and negative tolerance fit. The assembling method comprises the following steps: fixing the main shaft, inserting the steel ribs, embedding the same-direction magnetic shoes in a sliding manner one by one, and alternately mounting the reverse magnetic shoe groups to form an alternate polar array. Gluing or customization of a clamping tool is not needed, splicing repulsive force and assembly cost are remarkably reduced, electromagnetic performance is close to radial magnetization, and the device is suitable for low-speed wave energy power generation scenes and has the advantages of modularization, detachability and batch manufacturing.
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Citation Information

Patent Citations

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