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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 complex, linear drives reducing the degree of efficiency, and achieve the effect of high efficiency and high positioning accuracy

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

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

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Embodiment Construction

[0059] FIG. 1 shows, in a cross-sectional view, a device 1 according to the invention, which has a linear drive 2, wherein the linear drive 2 drives a linear compressor 3 for compressing a gaseous fluid 32. The fluid 32 may be a coolant delivered into the condensation layer (not shown). The linear drive 2 includes a stator 4 in which the rotor 5 can move back and forth along the drive axis 9. The rotor has magnets (not shown), wherein the magnets are moved by means of a drive coil 6.

[0060]The linear drive 2 is connected to the compressor piston 8 via a piston rod 27, wherein the compressor piston 8 can move back and forth along the piston axis 33 in the piston housing 7. The piston rod 27 includes a connecting piece 26 formed in the form of a narrow point for preventing the compressor piston 8 from tilting. The connecting piece 26 can absorb the deflection acting at a right angle relative to the piston rod 27.

[0061] By means of the housing wall 28 with the opening 29, the co...

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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 to the 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 a coil current flows, wherein the linear drive The type compressor includes a piston housing and a compressor piston adapted to move back and forth along the axis of the piston therein and driven by a linear drive; and the present invention relates to a device including a linear drive, wherein the linear drive includes a stator, a In the rotor moving back and forth along the drive axis and the drive coil through which the coil current flows; and a device for controlling the coil current, especially for a linear compressor, wherein the linear compressor includes a linear drive; With a piston housing and a compressor piston adapted to move back and forth along the piston axis therein and driven by a linear drive, the inve...

Claims

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Application Information

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