Salient pole type linear motor and reciprocating type double-piston compressor

Abstract

The invention discloses a salient pole type linear motor and a reciprocating type double-piston compressor. The salient pole type linear motor at least comprises a housing, a stator, a rotor and multiple coil units, wherein the stator is composed of an intermediate stator core and stator cores at the two sides; the intermediate stator core and stator cores at the two sides are provided with multiple magnetic pole paired inward projections; and the multiple coil units are wound on a magnetic pole back and forth so that when currents are sequentially applied to the front and back coil units, through a magnetic field generated by the coil units wound on the magnetic pole, i.e., through the magnetic pole, the rotor is driven to perform reciprocating linear motion along the axial direction of the stator. The two ends of the salient pole type linear motor are also connected with a compressor with double pistons so that gas in the cylinder of the compressor is compressed or drives a fluid, and thus a reciprocating type double-piston compressor driven by the linear motor is formed.

Description

technical field [0001] The present invention relates to a salient-pole linear motor and a reciprocating double-piston compressor, in particular to a motor that uses the magnetic poles of the stator core to be arranged back and forth in the stator to drive the magnetic field generated by the coils on the front and rear magnetic poles to pass through the magnetic poles. A motor that attracts the mover to reciprocate and linearly move along the central axis of the stator. Both ends of the salient pole linear motor can also be connected with a compressor with double pistons, so that the gas in the cylinder of the compressor can be compressed or fluid can be driven to form a reciprocating double-piston compressor driven by the linear motor. Background technique [0002] The traditional rotary switched reluctance motor (Switched Reluctance Motor, SRM) uses the characteristic that the closed magnetic force line will take the minimum reluctance path, so that the two magnetic materia...

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Problems solved by technology

[0003] Traditional reciprocating compressors require a large motor thrust to achieve the compression cycle of gas or the drive of liquid. However, limited by the overall volume of the compressor, the general cylindrical linear motor cannot meet the demand for such a high driving force. Only The traditional reciprocating compressor can meet its sufficient driving force, and the traditional reciprocating compressor mainly uses a rotary motor to drive the crank connecting rod (Crank), and the piston is pushed through the connecting rod mechanism to compress the gas in the cylinder or drive the fluid, and then obtain the desired pressure needed

[0004] However, although the reciprocating compressor driven by the traditional rotary motor has the advantages of low cost and wide operating range, the linear motion of the piston driven by the rotary motor will cause a lateral force during the compression process of the piston, which makes the Cylinder wall wear indirectly leads to problems such as noise, vibration and high mechanical loss, which affects the overall system efficiency. Although the above problems can be alleviated through lubricants, problems such as lubricating oil contaminating compressed gas or fluid are derived.

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