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US 7,922,463 B2Granted
Linear compressor
AssigneeLG Electronics Inc.
InventorsJong Koo Lee, Jin Taek Oh, Kwang Wook Kim, Min Chul Han, Gye Young Song, Hyung Pyo Yoon, Kwang Ha Suh, Kyoung Seok Kang
Life of this patent
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Abstract
Disclosed herein is a linear compressor wherein a compression unit, including a cylinder and a linear motor, is supported by a frame mounted in a hermetic container. The frame is die cast using diamagnetic zinc having a high forming accuracy, thereby preventing an electromagnetic force of the linear motor from being leaked therethrough, and enabling a reduction in the number of machining times thereof after die casting.
Claims10
A linear compressor comprising:
- a frame having a cylindrical portion and a collar extended outwardly from the cylindrical portion;
- a cylinder inserted into the cylindrical portion of the frame, the cylinder having a protruding portion protruded from the cylindrical portion of the frame in a front direction of the cylinder;
- a piston mounted in the cylinder to be reciprocated therein;
- a linear motor supported by the collar of the frame and adapted to reciprocate the piston;
- a discharge unit covering the end of the cylinder to receive a discharge valve and having a discharge hole to discharge compressed operating fluid from the cylinder, the discharge unit having a top, and a sidewall extending downwardly from the top, the sidewall having an inner surface and an outer surface;
- and
- a cylinder cover located in front of the cylindrical portion of the frame and interposed between the protruding portion of the cylinder and the inner surface of the discharge unit sidewall, an outer diameter of the cylinder cover being smaller than an outer diameter of the cylindrical portion of the frame, the cylinder cover being made of a diamagnetic material.
4 more elements
Dependencies are inferred from the claim text.