Linear pulse motor

H - Electricity – 02 – K

Patent

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Details

H02K 41/03 (2006.01)

Patent

CA 2122095

It is an object of the present invention to provide a linear pulse motor capable of being configured even if the number of salient poles of a stator is odd and having increased ampere-conductors of a winding and large driving force. The linear pulse motor includes a stator having a plurality of salient poles 11, 12, ... 15 disposed at equal pitch angle and having an inner peripheral surface on which teeth 16 are formed in the direction of a shaft 16, and a mover 2 disposed movably in the shaft direction. A stator core 10 includes stator iron plates 30 laminated while rotated successively by the equal pitch angle of the salient poles. When k is an integer equal to or larger than 1, m is the number of phases, and n is equal to or smaller than m/2 and nearest to m/2, the stator iron plates 30 has km salient poles P1, P2, ... P5. The stator iron plates 30 include k sets of salient poles each set including n salient poles having a small inner radius and (m-n) salient poles having a large inner radius arranged in order of the description being formed in top ends of the salient poles opposite to the mover as viewed from the side of the mover.

Divulgation d'un modèle de moteur linéaire à impulsions capable d'être configuré même si le nombre de pôles saillants est impair et caractérisé par un accroissement des ampères-conducteurs et une importante force d'excitation. Le moteur comprend un stator muni d'une série de pôles saillants (11, 12, ... 15) placés à angle d'attaque égal et ayant une surface périphérique interne sur laquelle sont formées des dents (16) orientées en direction d'un arbre (16), ainsi qu'un mécanisme (2) orienté de façon mobile en direction de l'arbre. Le stator (10) comprend des plaques fixes en fer (30) laminées et successivement mises en rotation par l'angle d'attaque égal des pôles saillants. Soit k un nombre entier égal ou supérieur à 1, m un nombre de phases et n un nombre égal ou inférieur à m/2 et le plus près de m/2. Les plaques fixes du stator (30) comprennent alors km pôles saillants P1, P2, ... P5. Les plaques fixes du stator (30) comprennent k jeux de pôles saillants; chaque jeu comprend n pôles saillants à petit rayon interne et (m - n) pôles saillants ayant un grand rayon interne disposés dans l'ordre de la description et formés dans les extrémités supérieures des pôles saillants opposés au mécanisme, lorsque vu du côté du mécanisme.

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