Linear drive and linear compressor with adaptable output

Abstract

The invention relates to an apparatus (1) comprising a linear drive (2) which has a stator (4) and a rotor (5) movable in a reciprocating manner therein along a drive axis (9) between a first (11) and a second (12) rotor reversal point about a rotor zero position (13), and / or comprising a linear compressor (3) which has a piston housing (7) and a compressor piston (6) which is movable in a reciprocating manner therein along a piston axis (8) and a first (21) and a second (22) piston reversal point about a piston zero position (23) and can be driven by the linear drive (2), wherein either the rotor zero position (13) or the piston zero position (23) is adjustable and / or at least one spring element (14, 15) acts on the rotor (5) or on the compressor piston (6), the length of which can be varied, in particular shortened, and / or the spring constant of which can be changed, in particular increased; and a method for cooling commodities (27) or for compressing a fluid (18). The invention is distinguished by the fact that adaptation of the output delivered by the apparatus has no substantial effect on the electromechanical efficiency of the apparatus, as a result of which a linear drive (2) and a linear compressor (3) can be constructed in an especially cost-effective manner, since the diversity of the products can be considerably reduced.

Description

technical field [0001] The invention relates to a device comprising a linear drive having a stator and a rotor therein movable in a reciprocating manner along a drive axis between first and second rotor reversal points around a rotor zero position; and / or comprising a linear compressor having a piston housing and reciprocatingly movable therein along a drive axis between first and second piston reversal points about a piston zero position and capable of being moved by the A piston driven by a linear drive, and a method for cooling an item and / or compressing a fluid. Background technique [0002] Linear compressors are currently being developed for use in domestic refrigeration appliances, such as for example refrigerators and / or freezers or air conditioning systems. Such compressors require different output levels, for example with 7 cooling capacities of 40W, 70W, 80W, 100W, 120W, 140W and 160W. In this regard, the compressors of the different output classes are designed ...

AI Technical Summary

Problems solved by technology

This design is complex, costly and significantly increases the spectrum of required components and spare parts

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