| 摘要 |
PROBLEM TO BE SOLVED: To enable a permanent magnet to be easily fixed to an oscillator in a linear style tightly sealed type compressor provided with a linear motor in which the permanent magnet is fixed to the oscillator. SOLUTION: Permanent magnets 6, 7 are coated with a cover 21 having the fallen U-letter shape sectional surface and made of non-magnetic material and a claw 21a provided in the central lower part of the cover 21 and having its sectional area of a narrow angular shape is meshed with a recess 5a provided on an oscillator 5 so as to be fixed to the oscillator 5. In this case, it is also possible to provide a recess 5b for the purpose of allowing insertion of the cover 21 in the oscillator 5 and also possible to provide a cover insertion part 5c for inserting the cover 21 in the oscillator 5. In addition, such a construction is also possible that the permanent magnet can be fixed by means of a stopper made of non-magnetic material and penetrating a hole part provided in the oscillator and the groove part provided in the abovementioned permanent magnet. |
