| 摘要 |
The object of the invention is a polar element for a permanent magnet, containing at least onepermanent magnet; a case structure (2, 3; 12 ,13; 22, 23; 32), inside which said at least one permanent magnet is placed; a fitting element (6,15,25,33), which is fitted to be coupled to the case structure to seal the permanent magnet inside a sealed case formed by the case structure and the fitting element; and filling material inside said case for coupling the permanent magnet to the case structure and/or to the fitting element. Either the case structure or the fitting element is made of ferromagnetic material, the other one being made of non-magnetic material. Mechanically bendable flanges or protruding parts (5,14,24,34,35) are formed in the case structure (2 , 3 ; 12, 13 ; 22, 23 ; 32) and/or the fitting element (6,15,25,33), and corresponding surfaces (7,16,26,36,37) are respectively formed in the fitting element (6,15,25,33) and/or the case structure (2, 3; 12, 13; 22, 23; 32), substantially opposing the flanges or protruding parts (5,14,24,34,35) such that the flanges or protruding parts are bendable to the corresponding surfaces in such a way that the flanges or protruding parts (5,14,24,34,35), when bent, remain substantially within the external dimensions of the polar element (1,11,21,31). |
