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Reciprocating Compressor Having Supporting Unit Attentuating Lateral Displacement Thereof

a compressor and supporting unit technology, applied in the direction of positive displacement liquid engine, pump components, piston pumps, etc., can solve the problems of weak lateral stiffness of the oil spring and severe vibration of the compressor

Inactive Publication Date: 2008-09-25
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016]Therefore, it is an object of the present invention to provide a reciprocating compressor having a supporting unit attenuating a lateral displacement capable of minimizing lateral vibration of a compressor, which is generated in a direction that a reciprocating motor is operated when the reciprocating compressor is in operation.

Problems solved by technology

Nevertheless, the lateral stiffness of the oil spring is weak because an internal oil of each coil spring for supporting the main body of the reciprocating compressor is formed at regular pitches.
For this reason, as shown in FIG. 2B, a lateral displacement (L) of the compressor becomes great, and thus the compressor main body is excessively inclined, thereby making the vibration of the compressor severe.

Method used

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  • Reciprocating Compressor Having Supporting Unit Attentuating Lateral Displacement Thereof
  • Reciprocating Compressor Having Supporting Unit Attentuating Lateral Displacement Thereof
  • Reciprocating Compressor Having Supporting Unit Attentuating Lateral Displacement Thereof

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Experimental program
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Effect test

first embodiment

[0043]FIG. 4 shows one of plural coil springs constituting a supporting unit of a reciprocating compressor in accordance with the present invention.

[0044]Even though only one front oil spring is depicted in FIG. 4, the same structure as that depicted in the drawing is applied to the rest of the coil spring of the reciprocating compressor. A structure depicted in another drawing for another embodiment to be described later is also applied to the rest of the coil spring of the corresponding compressor.

[0045]The coil spring 610, 620 in accordance with the first embodiment of the present invention includes end coils 590 tightly wound so as to be respectively fixed to one surface of the casing 100 and one surface of the main body, particularly, one surface of the frame unit 200; and an inner coil 580 wound and connected to the end coil 590.

[0046]The inner coil 580 includes a pair of elastic parts 631 having predetermined pitches (t) from the end coil 590 toward the central portion of the...

second embodiment

[0053]FIGS. 6 and 7 show a coil spring constituting a supporting unit of a reciprocating compressor in accordance with the present invention.

[0054]As shown in FIG. 6, a coil spring 610, 620 in accordance with the second embodiment includes an end coil 590; and an inner oil 580 including a pair of mass parts 641 which are tightly wound right next to the end coil 590; an elastic part 642 wound at predetermined pitches (t) between the pair mass parts.

[0055]The winding number of the mass part 641 preferably is two ˜four times as many as that of the end coil 590.

[0056]The elastic part 642 is preferably wound at regular pitches (t).

[0057]In addition, the elastic part 642 may be wound at pitches decreased as it goes toward the central portion of the coil spring 610, 620 or, contrary, at pitches (T) increased as it goes toward its central portion.

[0058]In addition, the elastic part 642 may be wound at pitches increased and decreased alternately between the pair of the mass parts 641.

[0059]A...

third embodiment

[0060]FIG. 8 shows a coil spring constituting a supporting unit of a reciprocating compressor in accordance with the present invention.

[0061]As shown therein, a oil spring 610, 620 in accordance with the third embodiment includes an end oil 592; and an inner coil including a first elastic part 652 wound from an end coil 590 fixed at one surface of the compressor main body 700 at predetermined pitches (t1), a second elastic part 653 wound from an end coil 590 fixed at one surface of the casing 100 at predetermined pitches (t2) that are different from those (t1) of the first elastic part 652, and a mass part 651 tightly wound between the first and second elastic parts 652 and 653.

[0062]The pitches (t1) of the first elastic part 652 and the pitches (t2) of the second elastic part are regular, respectively, but the two pitches (t1 and t2) are different from each other.

[0063]In addition, the first elastic part 652 and the second elastic part 653 may be wound at pitches (t1, t2) decreased...

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Abstract

A reciprocating compressor comprises a casing including a suction pipe (SP) through which a fluid is introduced from the outside and a discharge pipe (DP) through which the fluid is discharged outside and forming a predetermined internal space; a compressor main body (700) positioned in the casing (100), compressing the fluid introduced through the suction pipe (SP) with a linear reciprocating motion of a piston (420) and discharging the compressed fluid through the discharge pipe (DP); and a supporting unit (600) including a plurality of coil springs connecting the compressor main body (700) to the casing (100), wherein the plurality of coil springs (610, 620) includes, respectively, end coils (590) tightly wound so as to be fixed to one surface of the compressor main body (700) and to one surface of the casing (100) and an inner coil (580) having at least one part which is tightly wound and positioned between the end coils (590), thereby minimizing the lateral vibration of the compressor, which is generated in a direction that a reciprocating motor is operated in operation of the reciprocating compressor.

Description

TECHNICAL FIELD[0001]The present invention relates to a reciprocating compressor having a supporting unit attenuating its lateral displacement, and more particularly, to a reciprocating compressing having a supporting unit attenuating its lateral displacement capable of minimizing lateral vibration of a compressor, which is generated in a direction that a reciprocating motor is operated in operation of the reciprocating compressor.BACKGROUND ART[0002]In general, a reciprocating compressor constitutes an air conditioning device, sucks a refrigerant gas thereinto and discharges the compressed refrigerant gas outside the compressor as a piston linearly reciprocates in a cylinder.[0003]As shown in FIG. 1, a conventional reciprocating compressor includes a casing 10 forming an exterior, having a certain space therein and including a suction pipe (SP) through which a refrigerant gas is introduced and a discharge pipe (DP) through which the refrigerant gas compressed in the compressor is d...

Claims

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Application Information

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IPC IPC(8): F04B39/12F04B39/00
CPCF04B39/121F04B39/0044F04B39/00
Inventor LEE, MIN-WOO
Owner LG ELECTRONICS INC