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US 2010/0244606 A1Published application
Torque rotor and method for manufacturing the same
AssigneeMando Corporation
InventorChae-soo KIM
Life of this patent
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Abstract
Disclosed is a torque rotor and method for manufacturing the torque rotor having an effect of preventing inflow of plastic between a yoke and a magnet during a conventional plastic injection molding process for forming an assembling structure after assembling between the yoke and the magnet, thereby preventing degradation of a roundness of the magnet or damage of the magnet due to the difference in the temperature expansion coefficients, and preventing idle rotation of the yoke and the magnet relative to each other.
Claims11
A torque rotor, comprising:
- a magnet with alternately repeated N poles and S poles for generating magnetic force;
- a yoke inserted into an inner peripheral surface of the magnet;
- and
- a tube inserted into an inner peripheral surface of the yoke,
- in which the magnet and yoke comprise a fixing part for preventing the magnet and yoke from idling rotating during rotation.
2 more elements
A method for manufacturing a torque rotor, the method comprising the steps of:
- coating an adhesive an inner peripheral surface of a magnet and an outer peripheral surface of a yoke;
- assembling the magnet with the yoke, in which a protrusion or a groove of the magnet is inserted into a corresponding groove or protrusion of the yoke, respectively, and an end of the magnet is disposed on a stopper flange formed on an end of the yoke;
- and
- assembling the yoke with a tube, in which the tube is inserted into an inner surface of the yoke and an end of the yoke is disposed on a coupling flange formed on an end of the tube.
1 more element
Dependencies are inferred from the claim text.