| US 7,489,055 B2 | ||
| Linear motor and linear compressor using the same | ||
| Sang-Sub Jeong, Kyungki-do (Korea, Republic of); and Hyuk Lee, Kyungki-do (Korea, Republic of) | ||
| Assigned to LG Electronics Inc., Seoul (Korea, Republic of) | ||
| Filed on Oct. 28, 2005, as Appl. No. 11/260,107. | ||
| Claims priority of application No. 10-2005-0057173 (KR), filed on Jun. 29, 2005. | ||
| Prior Publication US 2007/0001519 A1, Jan. 04, 2007 | ||
| Int. Cl. H02K 33/16 (2006.01); H02P 7/00 (2006.01) | ||
| U.S. Cl. 310—15 [310/12; 417/417] | 10 Claims |
| 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, and
wherein a second connecting tap is connected to a second end of the first and second auxiliary coils connected in series.
|