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Linear compressor and control method thereof

A linear compressor and controller technology, applied in pump control, mechanical equipment, engine parameters, etc., can solve problems such as expansion

Inactive Publication Date: 2005-02-02
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additional changes in cooling capacity may be overextended between high and low cooling states

Method used

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  • Linear compressor and control method thereof
  • Linear compressor and control method thereof
  • Linear compressor and control method thereof

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Embodiment Construction

[0031] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Wherein the same reference numerals refer to the same elements throughout. The embodiments are described in order to illustrate the present invention by referring to the figures.

[0032] Figure 4 is a sectional view of a position detection sensor for a linear compressor piston according to an embodiment of the present invention. Such as Figure 4 As shown, the position detection sensor 40 includes a sensor body 1 , a sensing coil 2 , a core support 3 and a core 4 .

[0033] The sensor body 1 includes a sensor coil 2 . The sensing coil 2 includes a first sensing coil 2a and a second sensing coil 2b connected in series. The first sensing coil 2a and the second sensing coil 2b have the same inductance, size and number of turns. The core holder 3 is made of non-magnetic material, supports the core 4 and is bonded to the piston (not shown).

[0034] The core 4...

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Abstract

A linear compressor having a core combined to one end of a piston to detect a position of the piston reciprocally moving up and down. A first sensor coil and a second sensor coil detect the position of the core. The core has an upper core having a length shorter than one half of the length of the first sensor coil and a lower core having a length shorter than one half of the length of the second sensor coil in series. A method of controlling the operation of the linear compressor includes timing the upper core and the lower core driven by the piston through a stroke cycle, receiving the time and calculating a top dead center position based on the time or an offset value respectively, and controlling a piston stroke by varying the power driving the linear compressor according to the calculated top dead center or offset value.

Description

technical field [0001] The invention relates to a linear compressor and a control method thereof. Background technique [0002] Linear compressors are widely used to compress refrigerant in refrigeration cycles such as refrigerators. The linear compressor measures the magnitude of the piston stroke and controls the movement of the piston by applying current to a drive motor of the linear compressor based on the analysis of the measured magnitude of the piston stroke. [0003] figure 1 is a cross-sectional view of a conventional linear compressor piston position detection sensor. Such as figure 1 As shown, the position detection sensor includes a sensor body 100 , a sensing coil 101 , a core support 102 and a core 103 . [0004] The sensor body 100 includes a sensor coil 101 inside. The sensing coil 101 has a first sensing coil 101a connected in series to a second sensing coil 101b, and the second sensing coil 101b has the same inductance, size and number of turns as the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06F04B17/04F04B35/04
CPCF04B2203/0402F04B2201/0201F04B35/045F04B17/04
Inventor 金孝锡
Owner SAMSUNG ELECTRONICS CO LTD