EFFICIENT LAMINATED CORELESS GENERATOR AND MANUFACTURING METHOD THEREFOR

• Main Author: Yu, Renwei
• Format: Patent
• Language: English; French; German
• Published: 13.03.2019
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

A generator is provided with stator coils fixed with an outer fixing bracket (2) and rotors driven by a spindle (1), and the rotors are fixed with the spindle (1), and both of stator coils and a rotor frame (3) are of disk shapes with the spindle (1) passing through centers therein; one rotor and an adjacent stator coil constitute one kinetic energy conversion unit (6), a plurality of kinetic energy conversion units (6) are axially aligned through the spindle (1) and successively mounted in a consistent direction to form a laminated generator body; permanent magnets (4) configured in even number and having consistent shapes on a single rotor frame (3) are distributed in a form of regular polygon around an axis, the shape of a single coil is the same as that of the magnet; a ratio d/h of the maximum size d of a single round permanent magnet (4) in a radial direction to a thickness h of one kinetic energy conversion unit (6) is 2ˆ¼2.65. The output power density of a disk type electrical machine having the above structure is at least 2.54 times of that of a single-layer laminated generator, and is 3 times of that of a traditional column type generator.