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Method for adjusting a piston in a linear compressor

A linear compressor and piston technology, applied in piston pumps, mechanical equipment, machines/engines, etc., can solve problems such as inability to install cooling, influence of compressor efficiency, large dead zone volume, etc.

Inactive Publication Date: 2009-03-18
BOSCH SIEMENS HAUSGERATE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If this results in a large dead volume in extreme cases, the efficiency of the compressor can be greatly affected, so that the unit cannot be cooled in a correct manner

Method used

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  • Method for adjusting a piston in a linear compressor
  • Method for adjusting a piston in a linear compressor
  • Method for adjusting a piston in a linear compressor

Examples

Experimental program
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Embodiment Construction

[0023] figure 1 is a schematic illustration of a linear compressor with a linear drive 1 and a compressor unit 2 accommodated in a frame 3 , here U-shaped. The core 4 and the winding 5 , facing each other and having an E-shaped cross-section, are mounted on two parallel wings of the frame 3 . The armature 6 is suspended in the air gap between the cores 4 by means of a diaphragm spring 7 which holds the armature 6 in an easily displaceable manner in the longitudinal direction of the air gap and rigidly in the transverse direction . The armature 6 comprises two permanent magnets 8, 9 with anti-parallel polarization, which try to align with each other in the magnetic field generated by the winding 5 and thus according to the direction of conduction through the winding 5 in the perspective shown in the drawing Driving the armature 6 to the left or right among the figure.

[0024] The compressor unit 2 comprises a compression chamber 10 delimited on one side by a movable piston ...

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PUM

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Abstract

A linear compressor comprises a linear drive (1) equipped with a winding (5) and an armature (6) that can be displaced by the magnetic field of the winding (5) in opposition to a spring force, and a compression chamber (10) which is delimited by a displaceable piston that is coupled to the armature (6), an alternating current is applied to the winding (5) in order to drive the armature in an oscillating manner. According to the invention, prior to operation, a direct current (I) having a first polarity is applied to the winding (5) in order to displace the armature from the rest position, a first end position attained by the armature under the effect of the direct current (I) is measured. When the compressor is in operation, the intensity of the alternating current which excites the winding is controlled so that the armature does not reach the first end position or reaches it at a reduced speed.

Description

technical field [0001] The invention relates to a method for operating a linear compressor, in particular a refrigerator. Linear compressors of this type are known, for example, from US 506032B2 and US 6642377B2. The linear compressor comprises a reversing linear drive with windings and an armature, wherein the armature can move against spring force under the action of a magnetic field generated by the windings, and a compression chamber in which the piston can move The way it moves is connected to the armature. In operation, an alternating current is applied to the windings to drive the armature in an oscillatory movement. Background technique [0002] While the amplitude of the piston movement oscillations is strictly regulated for conventional rotary drive compressors, this is not the case for linear compressors. The armature can oscillate with different amplitudes depending on the electrical drive power supplied to the winding, whereby the piston stroke is also variab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B35/04
CPCF04B35/045
Inventor M·贝希托尔德J·赖因施克
Owner BOSCH SIEMENS HAUSGERATE GMBH
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