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Linear motor and linear compressor using the same

  • US 7,489,055 B2
  • Filed: 10/28/2005
  • Issued: 02/10/2009
  • Est. Priority Date: 06/29/2005
  • Status: Active Grant
First Claim
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1. A linear motor comprising:

  • a bobbin;

    first and second coil groups wound on the bobbin to allow driving power to be applied to the coil groups; and

    a magnet adapted to be linearly reciprocated under the influence of a magnetic field that is produced by the coil groups depending on load current flowing through the coil groups,wherein each of the coil groups comprises a main coil and an auxiliary coil, and the main coils are connected with each other in parallel,wherein the first coil group has a first main coil and a first auxiliary coil, and the second coil group has a second main coil and a second auxiliary coil,wherein a base tap is connected to first ends of the first and second main coils connected in parallel, the base tap being connected to a power supply unit,where a first connecting tap is connected to second ends of the first and second main coils connected in parallel and a first end of the first and second auxiliary coils connected in series, andwherein a second connecting tap is connected to a second end of the first and second auxiliary coils connected in series.

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