Motor, embedded rotor, rotor core and rotor punching sheet thereof

Abstract

The invention discloses a motor, an embedded rotor, a rotor core and a rotor punching sheet thereof. The rotor punching sheet comprises a punching sheet body (1) and magnetic tile slots (2) formed in the punching sheet body (1), and also comprises a plurality of limiting components (3) for limiting magnetic tiles, wherein a punching sheet entity part between the two adjacent magnetic tile slots (2) is connected with the limiting components (3); and the two adjacent limiting components (3) are independent of each other. According to the rotor punching sheet disclosed by the invention, the punching sheet entity part between the two adjacent magnetic tile slots is connected with the limiting components, after the magnetic tiles are arranged in the magnetic tile slots, the magnetic tiles are limited by the limiting components, and thus the effect of limiting the magnetic tiles can be achieved; and as the two adjacent limiting components are independent of each other, the phenomenon of magnetic flux leakage can be effectively eliminated, the utilization rate of the magnetic tiles can be improved, and thus the power density of the motor can be improved.

Description

technical field [0001] The invention relates to the technical field of motor equipment, in particular to a motor, an embedded rotor, a rotor iron core and a rotor punch. Background technique [0002] Traditional permanent magnet motors mostly use ferrite magnetic materials, in order to obtain a larger magnetic flux density, and most of the rotors are built-in. The magnetic field of the embedded rotor is provided by the parallel connection of two adjacent magnetic poles. Compared with the magnetic tile surface-mounted rotor, the magnetic flux density is higher, and a larger output torque can be obtained. [0003] Such as figure 1 and figure 2 As shown, in an existing embodiment, the rotor core is formed by stacking a plurality of rotor punches, and the rotor punch includes a punch body 01 and a magnetic tile groove 02 arranged on the punch body 01, The side of the magnetic shoe groove 02 facing the center of the punch body 01 has a ring structure, so as to play the role o...

AI Technical Summary

Problems solved by technology

However, in order to ensure the structural strength, the magnetic isolation bridge 03 should not be too thin and narrow. Therefore, there is inevitably magnetic flux leakage, which makes the utilization rate of the magnetic tiles low.

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