Linear compressor and oil supply method thereof

Abstract

The invention discloses a linear compressor and an oil supply method thereof. The linear compressor comprises rod structures which are arranged between a rear baffle and an inner stator. The rod structures are sleeved with protective sleeves, and the protective sleeves are provided with oil guide through holes. The linear compressor can be used for leading lubricating oil into a positioning rod and the protective sleeve and fall onto a bearing through the oil guide through holes, so that a positioning shaft and the bearing are effectively lubricated, and the service life of parts is prolonged; the performance stability of the linear compressor is improved, and the service life of the linear compressor is prolonged; the mechanical efficiency of the linear compressor is improved; abrasive dust and impurities can be taken away, the friction face of a piston and the bearing is cleaned, the possibility that the impurities are accumulated and enter the piston is lowered, and the reliability of the linear compressor is improved.

Description

technical field [0001] The invention relates to a compressor, in particular to a linear compressor and an oil supply method thereof. Background technique [0002] The linear compressor sucks the refrigerant gas into the cylinder, and the piston performs linear reciprocating motion in the cylinder through the linear driving force of the linear motor to compress the fluid, and then discharges the compressed fluid. [0003] Such as figure 1 As shown, the linear compressor is an axisymmetric device, which includes a linear motor, a piston 7', a cylinder 9' and the like. The linear motor includes an inner stator 1', an outer stator 2', a mover 4' and an annular excitation coil 3'. Both the inner stator 1' and the outer stator 2' are formed by stacking a plurality of silicon steel sheets. The inner stator 1' and the outer stator 2' are fixed, and the inner stator 1' is wound with an annular excitation coil 3', forming magnetic poles at its ends. The mover 4' consists of perman...

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Problems solved by technology

However, the friction between the positioning shaft 11' and the bearing 12', the positioning rod 13' and the sheath 15' is serious, so that these components are greatly lost, resulting in an increase in the power consumption of the linear compressor. In addition, the positioning shaft 11 The friction between ' and the bearing 12', between the positioning rod 13' and the sheath 15' seriously increases the temperature inside the linear compressor, and these dry frictions easily generate wear impurities and enter into the piston and cylinder, which reduces the The performance and reliability of the linear compressor, the difficulty of this problem is: because the lubricating oil system between the piston and the cylinder is on the right, and the positioning shaft 11', the bearing 12', the positioning rod 13' and the sheath 15' are all On the left, too far from the piston-cylinder lube system to take advantage of

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