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Method for the predictive closed-loop control of a linear drive or of a linear compressor and linear drive or linear compressor subject to predictive closed-loop control

A compressor, linear technology, applied in control systems, AC motor control, electromechanical devices, etc., can solve the problems of reducing efficiency and complexity of linear drives, and achieve the effect of high positioning accuracy and high efficiency.

Inactive Publication Date: 2012-03-14
BOSCH SIEMENS HAUSGERATE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, fine-tuning compressors is complex, and the deceleration of linear drives reduces their degree of efficiency

Method used

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  • Method for the predictive closed-loop control of a linear drive or of a linear compressor and linear drive or linear compressor subject to predictive closed-loop control
  • Method for the predictive closed-loop control of a linear drive or of a linear compressor and linear drive or linear compressor subject to predictive closed-loop control
  • Method for the predictive closed-loop control of a linear drive or of a linear compressor and linear drive or linear compressor subject to predictive closed-loop control

Examples

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Embodiment Construction

[0059] figure 1A device 1 according to the invention is shown in a sectional view with a linear drive 2 driving a linear compressor 3 for compressing a gaseous fluid 32 . Fluid 32 may be a coolant delivered into a condensation layer (not shown). The linear drive 2 comprises a stator 4 in which a rotor 5 is movable back and forth along a drive axis 9 . The rotor has magnets (not shown) which are moved by means of drive coils 6 .

[0060] The linear drive 2 is connected via a piston rod 27 to a compressor piston 8 which is movable back and forth within the piston housing 7 along a piston axis 33. The piston rod 27 includes a connecting piece 26 formed in the form of a pinch for preventing the compressor piston 8 from tilting. The connecting piece 26 can absorb deflections acting at right angles to the piston rod 27 .

[0061] By means of a housing wall 28 with an opening 29 , the compressor piston 8 is mounted laterally, that is to say in a direction at right angles to the p...

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Abstract

The invention relates to a method for the closed-loop control of a linear drive (2), which has a stator (4), a rotor (5) which is capable of moving to and fro along a drive axis (9) therein, and a drive coil (6) through which a coil current flows, in particular for a linear compressor (3), which has a piston housing (7) and a compressor piston (8), which is capable of moving to and fro along a piston axis (33) therein and is driven by the linear drive (2), wherein the coil current is subject to closed-loop control, to be precise such that the actual coil current and the desired coil current are essentially equal; as well as an apparatus (1) suitable for carrying out the method and a method for cooling goods (25) and / or for compressing a fluid (32) which uses the apparatus (1) according tothe invention or the closed-loop control method according to the invention. The invention is characterized by virtue of the fact that the closed-loop control of the to-and-fro movement of the rotor (5) or of the compressor piston (8) can be controlled efficiently and precisely using simple means without a complex sensor system being required.

Description

technical field [0001] The present invention relates to a control method of a linear drive, especially a linear compressor, wherein the linear drive includes a stator, a rotor adapted to move back and forth along a drive axis therein, and a drive coil through which coil current flows, wherein the linear drive A type compressor comprising a piston housing and a compressor piston adapted to move back and forth therein along a piston axis and driven by a linear drive; and the invention relates to a device comprising a linear drive comprising a stator, a suitable A rotor moving back and forth along a drive axis therein and a drive coil through which coil current flows; and means for controlling coil current, especially for a linear compressor, wherein the linear compressor includes a linear drive; A piston housing and a compressor piston adapted to move back and forth therein along the piston axis and driven by a linear drive. The invention also relates to methods for cooling good...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P25/02H02P25/06H02K33/04
CPCH02P25/027H02P25/06H02P25/032H02P25/062
Inventor J·赖因施克
Owner BOSCH SIEMENS HAUSGERATE GMBH
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