Permanent magnet torque motor based on halbach array
A torque motor and permanent magnet technology, which is applied in the field of permanent magnet torque motors, can solve the problems of insufficient utilization of magnetic energy, single-axis magnetization, magnetic steel and magnetic flux leakage at the link part of the magnetic conductor, etc., to reduce magnetic flux leakage Phenomenon, reduction of input power, effect of increase of output electromagnetic torque
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[0015] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.
[0016] The electromagnetic torque motor is the first stage of the electro-hydraulic servo valve. Its function is to convert the input electrical signal into a mechanical signal to deflect the armature to control the hydraulic part of the pre-stage. The existing electromagnetic torque motor has the problems of serious unidirectional magnetization of a whole magnet and low utilization rate of magnetic energy, and it is technically difficult to realize multidirectional magnetization of a magnet. In order to improve the output torque of the traditional torque motor and improve the compactness of the torque motor structure, the present invention proposes a new type of permanent magnet torque motor based on the Halbach array, which divides the traditional single magnetic steel into three parts and adds different magnetization The directions are arranged in ...
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