KR100785318B1 - Compressor - Google Patents

Abstract

The present invention relates to a compressor capable of maximizing suction efficiency by relatively lowering a compression speed during compression of a refrigerant and allowing a rapid expansion of re-expansion. It provides a compressor including an auxiliary torque providing unit for increasing the moving speed of the piston portion when the refrigerant is sucked.

Description

Compressor {COMPRESSOR}

The present invention relates to a compressor, and more particularly, to a structure of a reciprocating compressor which is intended to achieve a relatively low compression rate during compression of a refrigerant and a rapid reexpansion speed to maximize suction efficiency. .

In general, the compressor is connected to a refrigeration air conditioner such as a refrigerating machine or an air conditioner, and serves to compress the working fluid passed through the evaporation heat exchanger and supply it to the condensation heat exchanger.

1 illustrates a conventional reciprocating compressor that compresses gas in a cylinder by reciprocating a piston connected to a connecting rod among the compressors, and the reciprocating compressor will be described as follows.

First, the reciprocating compressor includes a case 10, a transmission unit 20, and a compression unit 30.

The case 10 includes a lower cell 11 and an upper cell 12, and the lower cell 11 and the upper cell 12 are coupled to each other to seal an inner space of the case 10.

At this time, in the lower part of the lower cell 11, refrigeration oil for abrasion prevention of various mechanical parts is accumulated to an appropriate depth.

In addition, the transmission unit 20 is provided in the case 10, the stator 21 to generate an electromagnetic force by applying a current, and the rotor 22 to generate a rotational force by the electromagnetic force of the stator 21 Include.

Then, the compression unit 30 compresses the working fluid by the rotational force of the transmission unit 20, the crankshaft 31, the eccentric portion 32, the connecting rod 33, the piston 34 It is configured to include.

Here, the crankshaft 31 is pressed into the rotor 22 is rotated together with the rotor 22, the lower end is immersed in the refrigeration oil of the lower cell (11).

In addition, the eccentric portion 32 is provided on the upper end of the crankshaft 31, and positioned so as to be eccentric from the center of the axis of the crankshaft 31.

In addition, one end of the connecting rod 33 is pin-coupled to the eccentric portion 32 formed at the upper end of the crankshaft 31, and the other end is pin-coupled to the piston 34 to rotate the crankshaft 31. The movement is converted into a linear reciprocating motion.

In addition, the piston 34 compresses the working fluid in the cylinder block 35 by the connecting rod 33.

FIG. 2 schematically shows a connection structure between the cylinder block 35, the piston 34, the connecting rod 33 and the crankshaft 31.

That is, in the reciprocating compressor having the above-described configuration, when the power is applied, the rotor 22 is rotated by the magnetic field generated by the electric force with the stator 21, and the crankshaft 31 according to the rotation of the rotor 22. Is rotated.

Accordingly, the connecting rod 33 connected to the eccentric portion 32 of the crankshaft 31 is repeatedly moved in the left / right direction on the drawing by a predetermined torque, and moves the piston 34 into the cylinder block 35. Reciprocating in a straight line in the and the suction, compression, and discharge of the refrigerant is repeatedly performed by the valve action of the suction valve and the discharge valve (not shown).

However, the conventional reciprocating compressor as described above has a large overcompression loss because the refrigerant compression speed is generally high during the compression of the refrigerant.

Of course, in order to solve the above problem, the rotational speed of the rotor 22 may be reduced, but in this case, since the suction speed of the refrigerant is lowered, the suction of the refrigerant is not easy.

In particular, since there is no time delay at the top dead center position, the generated torque of the transmission unit 20 must be increased, but in this case, the size of the transmission unit 20 must be increased.

In addition, in the case of the reciprocating compressor, since the compression and re-expansion is performed between half cycles in one cycle, a change in torque is largely generated, which increases the size of the transmission unit 20 relative to the output point or adversely affects suction efficiency. I have a problem.

The present invention has been made to solve the above-described various problems, the object of the present invention is to allow the compression process of the refrigerant to be made relatively slow, the suction process of the refrigerant can be made relatively fast to increase the suction efficiency It is an object of the present invention to provide a compressor capable of improving and reducing torque of an electric drive.

According to an aspect of the present invention for achieving the above object, a cylinder block for compressing, exhausting and suctioning a refrigerant; A piston unit reciprocating inside the cylinder block; A crankshaft rotated with torque received from the transmission, and having an eccentric portion at an end thereof; A connecting rod having one end connected to the piston part and the other end connected to an eccentric part of the crankshaft to convert the rotational movement of the crankshaft into a linear motion to move the piston; In addition, the auxiliary torque providing unit is positioned to be tensioned and restored along the moving direction of the piston unit, and reduces the moving speed of the piston unit when compressing the refrigerant and increases the moving speed of the piston unit when the refrigerant is sucked. A compressor is provided.

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In addition, the piston portion is separated into a first piston and a second piston, respectively, the auxiliary torque providing portion is provided between the first piston and the second piston, both ends are connected to the first piston and the second piston, respectively It is characterized in that it comprises a second elastic member that is compressed when the refrigerant is compressed, and is restored when the refrigerant is sucked.

The connecting rod may include a first connection part connected to the piston part and a second connection part connected to an eccentric part of the crankshaft, and the auxiliary torque providing part may include a first connection part and a first connection part constituting the connecting rod. It is characterized in that it comprises at least one third elastic member positioned between the two connecting portions, both ends are respectively connected to the first connecting portion and the second connecting portion.

The connecting rod may include a first connection part connected to the piston part and a second connection part connected to an eccentric part of the crankshaft, and the auxiliary torque providing part may include a first connection part and a first connection part constituting the connecting rod. Located between the second connection portion, the fourth elastic member and the at least one fifth elastic member provided in the interior of the fourth elastic member forming an outer circumferential surface with both ends connected to the first connecting portion and the second connecting portion, respectively It is characterized by being included.

The features and advantages of the present invention may be better understood with reference to the following accompanying drawings in conjunction with the following detailed description of each embodiment of the present invention, of which:

1 is a cross-sectional view showing the internal structure of a typical compressor;

2 is a configuration diagram schematically showing a connection structure between a cylinder block constituting a conventional compressor, a piston, and a connecting rod and a crankshaft;

3A to 3C are schematic diagrams showing an operation process according to the structure of the first embodiment of the present invention;

4 is a configuration diagram schematically showing an application state of another example to the first elastic member of the first embodiment of the present invention;

5A to 5C are schematic diagrams showing an operation process according to the structure of the second embodiment of the present invention;

6A to 6C are schematic diagrams showing an operation process according to the structure of the third embodiment of the present invention;

7A to 7C are schematic diagrams illustrating an operation process according to the structure of the fourth embodiment of the present invention;

8A to 8C are schematic diagrams showing an operation process according to the structure of the fifth embodiment of the present invention; And,

9A to 9C are schematic diagrams illustrating an operation process according to the structure of the sixth embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that the above object can be specifically realized as follows.

First, the compressor according to each embodiment of the present invention includes a cylinder block 350, a piston 340, a crankshaft 310, a connecting rod 330, and an auxiliary torque providing unit.

Here, the cylinder block 350 is compressed, the exhaust and suction of the refrigerant.

In addition, the piston unit 340 compresses or sucks the refrigerant while reciprocating the inside of the cylinder block 350.

The crankshaft 310 is rotated by receiving torque from the transmission unit 20 including the stator 21 and the rotor 22, and an eccentric portion 320 is provided at an end thereof.

At this time, the eccentric portion 320 is provided in a position eccentric with the axial direction of the crankshaft 310 is rotated eccentric with the rotation center of the crankshaft 310.

In addition, one end of the connecting rod 330 is rotatably connected to the piston portion 340, and the other end is rotatably connected to the eccentric portion 320.

At this time, both ends of the connecting rod 330 forms the shape of a tube having an opening therein, and a mounting shaft 341 and the eccentric portion 320 formed in the piston part 340 are respectively inserted and mounted.

In addition, the auxiliary torque providing unit is configured to reduce the moving speed of the piston unit 340 when the refrigerant is compressed and to increase the moving speed of the piston unit 340 when the refrigerant is sucked.

In the following, the mounting position and shape of the above-described auxiliary torque providing unit will be described in more detail for each embodiment.

First, as shown in FIGS. 3A to 3C, the first embodiment is provided such that the auxiliary torque providing unit is positioned to be compressed and restored along the moving direction of the piston unit 340.

To this end, the auxiliary torque providing unit is fixed to any part of the inside of the compressor that does not flow, and the other end is tensioned along the moving direction of the piston unit 340 when the refrigerant is compressed in contact with the eccentric unit 320. Alternatively, the first elastic member 410 is included to increase the torque storage degree while being compressed.

That is, the first elastic member 410 is configured to provide a restoring force to the eccentric portion 320 in a direction opposite to the moving direction of the piston portion 340 when the refrigerant is compressed, in particular the piston portion 340 When the top dead center is reached, the leaf spring is in contact with the outer circumferential surface of the eccentric portion 320 to achieve the maximum tensioned state.

Of course, the first elastic member 410 is composed of a coil-type compression spring in contact with the outer circumferential surface of the eccentric portion 320 as shown in FIG. 4 so as to reverse the direction of movement of the piston 340 when the refrigerant is compressed. By providing a restoring force to the eccentric portion 320 in a direction, when the piston portion 340 reaches the top dead center, it may be made to achieve the maximum compressed state.

Hereinafter, the operation of the compressor according to the first embodiment will be described in more detail with reference to FIGS. 3A to 3C.

First, when power for operating the compressor is applied, the crankshaft 310 is rotated by the rotation of the rotor 22.

At this time, the eccentric portion 320 provided at the end of the crankshaft 310 linearly reciprocates the connecting rod 3300 while being eccentrically rotated by an arbitrary distance from the axis center of the crankshaft 310.

Accordingly, the piston unit 340 repeats a series of processes of inhaling, compressing, and exhausting the refrigerant into the cylinder block 350 while reciprocating in the cylinder block 350.

In the above process, as shown in FIG. 3A for the compression of the sucked refrigerant, when the piston part 340 is gradually moved upward while being positioned at the bottom, that is, the eccentric part (the rotation of the crankshaft 310) If the 320 is gradually rotated upward, the first elastic member 410 in contact with the upper surface of the eccentric portion 320 has the other end gradually lifted upward based on the fixed end and the torque is stored.

At this time, although the eccentric portion 320 is eccentrically rotated by the rotation of the crankshaft 310, the rotation is moved upward as it is located toward the top dead center by the first elastic member 410 that provides a restoring force on the upper surface. It will slow down.

Therefore, overcompression loss can be prevented because the compression rate of refrigerant during compression is reduced. This is because the overcompression loss is proportional to the rise speed square of the piston (rising speed ² ).

If the piston 340 is located at the top dead center as shown in FIG. 3B, the torque force stored in the first elastic member 410 is maximized.

The piston unit 340 connected to the connecting rod 330 by the rotation of the eccentric unit 320 and the rotation of the crankshaft 310 and the rotation of the eccentric unit 320 while the compressed refrigerant gas is exploded due to the explosion in the above state. 3c moves downward as shown in FIG. 3c, the first elastic member 410 is operated by the restoring force to perform a faster rotation of the eccentric portion 320 using the stored torque.

Therefore, in the process of re-expansion, the piston 340 is moved downward at a faster speed, so that a smoother suction of the refrigerant is achieved.

On the other hand, Figures 5a to 5c is shown a configuration according to a second embodiment of the present invention.

That is, in the second embodiment of the present invention, it is suggested that the auxiliary torque providing unit is mounted inside the piston part 340.

To this end, the piston portion 340 is divided into a first piston 341 and a second piston 342, respectively, and the auxiliary torque providing unit is provided with both ends connected to each of the separated piston (341,342). do.

At this time, the auxiliary torque providing unit is compressed when the refrigerant is compressed, the second elastic member 420 is restored when the suction of the refrigerant, the second elastic member 420 is a coil spring or a leaf spring It is made of either.

In particular, the second embodiment suggests that the second elastic member 420 is made of a conical coil spring that gradually increases in diameter toward the bottom, that is, toward the side connected to the connecting rod 330.

Of course, the piston unit 340 may be configured to be separated not only into two pieces of piston 341 and 342, but also into three or more pieces as described above.

In this case, the second elastic member 420 is provided between the separated piston of each piece.

In addition, the connecting rod 330 is connected to the second piston 342 located at the bottom of the drawing, the first piston 341 is the second piston 342 by the second elastic member 420 Is moved along.

At this time, the connection between the second elastic member 420 and each of the pistons 341 and 342 is made by fastening members 421 such as bolts, screws, welding and rivets, or are opposed to the respective pistons 341 and 342. It may be connected by forming a locking projection (not shown) on the surface so that the end of the second elastic member 420 is caught.

Hereinafter, the operation of the compressor according to the configuration of the second embodiment will be described in more detail with reference to FIGS. 5A to 5C.

First, when power for operating the compressor is applied, the crankshaft 310 is rotated by the rotation of the rotor 22.

At this time, the eccentric portion 320 provided at the end of the crankshaft 310 linearly reciprocates the connecting rod 330 while being eccentrically rotated by an arbitrary distance from the axis center of the crankshaft 310.

Accordingly, the piston unit 340 repeats a series of processes of inhaling, compressing, and exhausting the refrigerant into the cylinder block 350 while reciprocating in the cylinder block 350.

In the above process, as shown in FIG. 5A to compress the sucked refrigerant, the second elastic member 420 provided in each of the pistons 341 and 342 if the piston part 340 is gradually moved upward while being positioned at the bottom thereof. ) Is gradually compressed and a predetermined amount of torque is stored.

At this time, although the eccentric portion 320 is eccentrically rotated by the rotation of the crankshaft 310, the upward movement of the eccentric portion is located toward the top dead center by the second elastic member 420 providing a restoring force on the upper surface. Slow down

That is, until the second elastic member 420 is completely compressed and the force transmitted to the first piston 341 is completely transmitted to the second piston 342, the second elastic member 420 may be at an ascending speed of the second piston 342. In comparison, the rising speed of the first piston 341 is slowed.

Therefore, overcompression loss can be prevented because the compression rate of refrigerant during compression is reduced.

If the piston 340 is positioned at the top dead center as shown in FIG. 5B, the torque force stored in the second elastic member 420 is maximized.

The piston unit 340 connected to the connecting rod 330 by the rotation of the eccentric unit 320 and the rotation of the crankshaft 310 and the rotation of the eccentric unit 320 while the compressed refrigerant gas is exploded due to the explosion in the above state. If the second elastic member 420 is restored by a restoring force and the second piston 342 is pushed downward by using a pre-stored torque, as shown in FIG. Rotation takes place.

Therefore, in the process of re-expansion, the piston 340 is moved downward at a faster speed, so that a smoother suction of the refrigerant is achieved.

6A to 6C illustrate a configuration according to the third embodiment of the present invention.

That is, in the third embodiment of the present invention, the auxiliary torque providing unit is provided to the connecting rod 330.

To this end, the connecting rod 330 is separated into a first connection part 331 and a second connection part 332, respectively, and the auxiliary torque providing part is separated from the first connection part 331 and the second connection part 332. It is provided between.

Here, the first connector 331 is connected to the piston 340, the second connector 332 is connected to the eccentric (320).

In addition, the auxiliary torque providing unit includes at least one or more third elastic members 430 connected to opposite surfaces of the first connecting portion 331 and the second connecting portion 332, respectively.

The third elastic member 430 is made of a leaf spring, the connection between the third elastic member 430 and each of the connecting portion (331,332) by at least one coupling method of bolt, screw, rivet, welding. do.

That is, in the third embodiment of the present invention, as the connecting rod 330 is bent by the third elastic member 430 when the refrigerant is compressed, as shown in FIG. 6A, the rising speed of the piston 340 is relatively high. This reduces the loss due to overcompression.

That is, ascending speed of the piston 340 is lowered by the amount of bending of the third elastic member 430.

In addition, as shown in FIG. 6B, the third elastic member 430 is completely restored at the top dead center position.

Thereafter, as shown in FIG. 6C, when the third elastic member 430 is bent in a predetermined portion as in the aforementioned compression, the piston 340 is maintained near the top dead center while the eccentric portion 320 is maintained. Is eccentrically rotated by a predetermined angle or more, since the curved third elastic member 430 is restored to lower the piston unit 340 more quickly, suction of the refrigerant may be easily performed.

At this time, during the compression and re-expansion of the refrigerant, the speed according to the rise and fall of the piston unit 340 may be adjusted by the spring coefficient of the third elastic member 430.

In addition, since the force applied to the side piece direction (X side direction) of the connecting rod 330 during compression is reduced, the frictional force between the outer surface of the piston portion 340 and the inner surface of the cylinder block 350 is also reduced. It becomes possible.

On the other hand, Figure 7a to Figure 7c is a configuration according to a fourth embodiment of the present invention.

That is, the fourth embodiment of the present invention suggests that the third elastic member constituting the auxiliary torque providing unit of the third embodiment of the present invention is formed of the coil spring 431.

At this time, the coil spring 431 may be formed in a cylindrical shape having the same diameter as a whole, or may be formed in a conical shape that the diameter gradually increases toward the bottom.

In addition, when the third elastic member is formed of a coil spring 431, the protrusion between the coil spring 431 and the connecting portions 331 and 332 on the outer circumferential surface of each of the connecting portions 331 and 332 along the length direction thereof. ) And connected to both ends of the coil spring 431 by the protrusions 331a and 332a.

The above connection structure is intended to prevent the removal of the coil spring 431 due to the bending as much as possible.

In particular, the protrusions 331a and 332a may be formed to have a thread shape, or may be formed of at least two protrusions.

At this time, the at least two protrusions are formed to be inclined outward from the connecting portion toward the outer side as shown, so that the coupling between the coil springs 431 may be smoothly performed, but the detachment may be prevented.

Of course, the connection between the connecting portions 331 and 332 of the connecting rod 330 and the coil spring 431 may be made by bolts, screws, rivets, welding, or the like.

Therefore, as shown in FIG. 7A, when the refrigerant is compressed, the coil spring 431 bends a certain portion, so that the rising speed of the piston 340 is relatively reduced, thereby preventing loss due to overcompression. The bending of the coil spring 431 does not occur at the top dead center position as in 7b.

Subsequently, upon re-expansion as shown in FIG. 7C, the coil spring 431 may be restored to rapidly lower the piston 340, and thus suction of the refrigerant may be easily performed.

8A to 8C illustrate a configuration according to the fifth embodiment of the present invention.

That is, the fifth embodiment of the present invention suggests that the auxiliary torque providing unit of the third embodiment of the present invention is formed of a bar, a bar, or a plate made of a flexible material other than a metal material.

At this time, the coupling between the auxiliary torque providing portion 440 of the flexible material and each of the connecting portions (331,332) using a fastening member 421, such as bolts, screws, rivets, or at least one of the coupling method of the welding coupling. Is connected by.

The configuration according to the fifth embodiment of the present invention described above is the same as the configuration according to the third embodiment of the present invention as shown in Figure 8a when the refrigerant is compressed auxiliary torque providing unit 440 of the flexible material Because of the bending, the ascending speed of the piston 340 is slowed, and the loss due to overcompression is prevented.

Subsequently, in the top dead center position as shown in FIG. 8B, the auxiliary torque providing unit 440 of the flexible material is straightened. In addition, the auxiliary torque providing unit of the flexible material is re-expanded as shown in FIG. 8C. The 440 is bent to lower the piston 340 quickly, so that the suction of the refrigerant may be easily performed.

9A to 9C illustrate a structure according to the sixth embodiment of the present invention.

That is, in the sixth embodiment of the present invention, the auxiliary torque providing unit is provided to the connecting rod 330, and it is suggested that the fourth elastic member 450 and the fifth elastic member 460 are simultaneously included.

At this time, the connecting rod 330 is separated into the first connecting portion 331 and the second connecting portion 332 as in the third embodiment described above.

In addition, the fourth elastic member 450 forms an outer circumferential surface with both ends connected to the first connector 331 and the second connector 332, respectively, and the fifth elastic member 460 is the It is provided inside the fourth elastic member 450.

Here, the first accommodating part 331b and the second accommodating part 332b each having a larger internal space than the inlet accommodated on the mutually opposing surfaces of the first connecting part 331 and the second connecting part 332, respectively. It is formed, the both ends of the fifth elastic member 460 is respectively accommodated in the first accommodating portion 331b and the second accommodating portion 332b is formed by the engaging portion 461 is formed to protrude outward, respectively. .

The inner space sizes of the accommodation portions 331b and 332b are formed to be larger by a predetermined interval than the diameters of the locking portions 461. At this time, the predetermined interval to limit the length of the bending moment according to the bending of the fourth elastic member 450 during the compression of the refrigerant, the re-expansion and suction of the fourth elastic member 450 It plays a role of limiting the length change which is deformed by tension.

In the above structure, the fourth elastic member 450 is composed of a coil spring, the fifth elastic member 460 is composed of any one of a rod or bar of a flexible material, a plate spring of the metal material or a coil spring.

In addition, when the fourth elastic member 450 is formed of a coil spring, mounting jaws 331c and 332c for mounting the coil spring are provided at ends of the first accommodating part 331b and the second accommodating part 332b. Urinary infusion is formed.

Of course, as in the above-described fourth embodiment, a thread or a plurality of protrusions are formed at the ends of the respective receiving portions 331b and 332b to allow stable mounting with the coil spring, or bolts, screws, rivets, welding, or the like. In the sixth embodiment, since the distance between the connecting portions 331 and 332 is always maintained by the fifth elastic member 460, the fourth elastic member 450 may be fixed. The removal can be prevented only by fitting into the mounting jaws 331c and 332c.

Accordingly, as shown in FIG. 9A, the force pushing up the piston 340 when the refrigerant is compressed is provided to the fourth elastic member 450 while bending the fourth elastic member 450 while continuing to the fifth elastic member. Since the bending of the elastic member 460 is made, and the rising speed of the piston 340 is relatively delayed by an arbitrary time (the time at which the bending occurs), the loss due to overcompression is prevented.

In addition, the bending of the connecting rod 330 does not occur at the top dead center position as illustrated in FIG. 9B, and when the re-expansion is performed as shown in FIG. 9C, the fourth elastic member 450 and the fifth elastic member ( The suction of the refrigerant is made easier because the 460 is applied to provide a force for rapidly lowering the piston portion 340 while gradually bending.

In addition, the fact that the present invention can be embodied in many other specific forms without departing from the spirit and scope is apparent to those skilled in the art. Therefore, the above-described embodiments are to be considered as illustrative and not restrictive, and thus, the invention is not limited to the above detailed description, but may vary within the scope of the appended claims and their equivalents.

In the structure of the compressor according to each embodiment of the present invention, the compression speed of the refrigerant is reduced in the process of compressing the refrigerant due to the auxiliary torque providing unit.

Therefore, the loss due to overcompression of the refrigerant can be reduced as much as possible.

In addition, due to the auxiliary torque providing unit according to each embodiment of the present invention is made a time delay at the position of the top dead center.

Therefore, the torque generated from the transmission portion can be reduced.

In addition, the auxiliary torque providing unit according to each embodiment of the present invention to lower the piston at a high speed when the expansion of the refrigerant.

Therefore, suction of the refrigerant can be made more easily.

In addition, the auxiliary torque providing unit according to the structure of the third to sixth embodiments of the present invention can reduce the frictional force in the X-axis direction of the force applied to the side of the piston portion when the refrigerant is compressed to reduce the frictional force of the piston portion do.

Therefore, wear reduction of the piston portion or the inner surface of the cylinder block can be achieved.

Claims (26)

A cylinder block in which the refrigerant is compressed, exhausted and sucked; A piston unit reciprocating inside the cylinder block; A crankshaft rotated with torque received from the transmission, and having an eccentric portion at an end thereof; A connecting rod having one end connected to the piston part and the other end connected to an eccentric part of the crankshaft to convert the rotational motion of the crankshaft into a linear motion to move the piston part; And, It is positioned to be tensioned and restored along the direction of movement of the piston portion, the auxiliary torque providing unit for reducing the movement speed of the piston portion when compressing the refrigerant and increasing the movement speed of the piston portion when the refrigerant is sucked; compressor. delete A cylinder block in which the refrigerant is compressed, exhausted and sucked; A piston unit reciprocating inside the cylinder block; A crankshaft rotated with torque received from the transmission, and having an eccentric portion at an end thereof; A connecting rod having one end connected to the piston part and the other end connected to an eccentric part of the crankshaft to convert the rotational motion of the crankshaft into a linear motion to move the piston part; And, And a supplementary torque providing unit which reduces the moving speed of the piston part when compressing the refrigerant and increases the moving speed of the piston part when the refrigerant is sucked. The auxiliary torque providing unit is positioned to compress or tension and recover along the moving direction of the piston unit, and is fixed to one portion of which one end is not flown, and the other end is compressed when the refrigerant is in contact with the eccentric part. Compressor, characterized in that it comprises a first elastic member which is compressed or tensioned toward the direction of movement of the piston portion to increase the torque storage degree. The method of claim 3, wherein The first elastic member is And a leaf spring that provides a restoring force to the eccentric portion in a direction opposite to the movement direction of the piston portion when compressing the refrigerant. The method of claim 3, wherein The first elastic member is And a compression spring which provides a restoring force to the eccentric portion in a direction opposite to the movement direction of the piston portion when compressing the refrigerant. A cylinder block in which the refrigerant is compressed, exhausted and sucked; A piston unit which is separated into a first piston and a second piston and reciprocates in the cylinder block; A crankshaft rotated with torque received from the transmission, and having an eccentric portion at an end thereof; A connecting rod having one end connected to the piston part and the other end connected to an eccentric part of the crankshaft to convert the rotational motion of the crankshaft into a linear motion to move the piston part; And, It is provided between the first piston and the second piston is larger in diameter toward the connecting rod is connected, both ends are connected to the first piston and the second piston, respectively, is compressed when the refrigerant is compressed, restored when the refrigerant is sucked in And a second elastic member, wherein the auxiliary torque providing unit reduces the moving speed of the piston unit when compressing the refrigerant and increases the moving speed of the piston unit when the refrigerant is sucked. The method of claim 6, The second elastic member is Compressor comprising a coil spring. delete A cylinder block in which the refrigerant is compressed, exhausted and sucked; A piston unit reciprocating inside the cylinder block; A crankshaft rotated with torque received from the transmission, and having an eccentric portion at an end thereof; A connecting rod having one end connected to the piston part and the other end connected to an eccentric part of the crankshaft to convert the rotational motion of the crankshaft into a linear motion to move the piston part; And, And an auxiliary torque providing unit which reduces the moving speed of the piston part when compressing the refrigerant and increases the moving speed of the piston part when the refrigerant is sucked. The piston unit is divided into at least three pieces, each compressor, characterized in that the auxiliary torque providing unit is provided between each of the separated piston of each piece. A cylinder block in which the refrigerant is compressed, exhausted and sucked; A piston unit reciprocating inside the cylinder block; A crankshaft rotated with torque received from the transmission, and having an eccentric portion at an end thereof; And a first connection part connected to the piston part, and a second connection part connected to the eccentric part of the crankshaft, one end of which is connected to the piston part, and the other end of which is connected to the eccentric part of the crankshaft. A connecting rod which converts the rotational movement of the crankshaft into linear movement to move the piston portion; And, At least one coil spring is disposed between the first connecting portion and the second connecting portion constituting the connecting rod, and both ends of the connecting rod are connected to the first connecting portion and the second connecting portion, respectively. In addition, the auxiliary torque providing unit for increasing the movement speed of the piston unit when the refrigerant is sucked, is configured to include,  And between the coil spring and each connecting portion of the connecting rod is formed by forming protrusions on the outer circumferential surface of each connecting portion along its length direction and engaging both ends of the coil spring to the protrusion. delete delete delete The method of claim 10, Compressor characterized in that the protrusion is formed to form a thread. The method of claim 10, The projection is characterized in that the compressor is formed with at least two projections inclined outward toward the outer side from the side in which the connection with the coil spring is made. A cylinder block in which the refrigerant is compressed, exhausted and sucked; A piston unit reciprocating inside the cylinder block; A crankshaft rotated with torque received from the transmission, and having an eccentric portion at an end thereof; And a first connection part connected to the piston part, and a second connection part connected to the eccentric part of the crankshaft, one end of which is connected to the piston part, and the other end of which is connected to the eccentric part of the crankshaft. A connecting rod which converts the rotational movement of the crankshaft into linear movement to move the piston portion; And, At least one third elastic member is disposed between the first connecting portion and the second connecting portion constituting the connecting rod, and both ends thereof are respectively connected to the first connecting portion and the second connecting portion, and the movement speed of the piston unit when the refrigerant is compressed. The auxiliary torque providing unit for reducing the pressure and increasing the moving speed of the piston when the refrigerant is suctioned, is configured to include, And the third elastic member comprises at least one of a rod of a flexible material, a plate of a flexible material, or a bar of a flexible material. A cylinder block in which the refrigerant is compressed, exhausted and sucked; A piston unit reciprocating inside the cylinder block; A crankshaft rotated with torque received from the transmission, and having an eccentric portion at an end thereof; And a first connection part connected to the piston part, and a second connection part connected to the eccentric part of the crankshaft, one end of which is connected to the piston part, and the other end of which is connected to the eccentric part of the crankshaft. A connecting rod which converts the rotational movement of the crankshaft into linear movement to move the piston portion; And, At least one third elastic member is disposed between the first connecting portion and the second connecting portion constituting the connecting rod, and both ends thereof are respectively connected to the first connecting portion and the second connecting portion, and the movement speed of the piston unit when the refrigerant is compressed. The auxiliary torque providing unit for reducing the pressure and increasing the moving speed of the piston when the refrigerant is suctioned, is configured to include, Compressor, characterized in that the connection between the connecting portion of the connecting rod and the third elastic member is made using at least one coupling method of bolts, rivets, welding coupling. A cylinder block in which the refrigerant is compressed, exhausted and sucked; A piston unit reciprocating inside the cylinder block; A crankshaft rotated with torque received from the transmission, and having an eccentric portion at an end thereof; And a first connection part connected to the piston part, and a second connection part connected to the eccentric part of the crankshaft, one end of which is connected to the piston part, and the other end of which is connected to the eccentric part of the crankshaft. A connecting rod which converts the rotational movement of the crankshaft into linear movement to move the piston portion; And, The fourth elastic member and the fourth elastic member positioned between the first connecting portion and the second connecting portion constituting the connecting rod and forming an outer circumferential surface with both ends connected to the first connecting portion and the second connecting portion, respectively. And at least one fifth elastic member provided, wherein the auxiliary torque providing unit reduces the moving speed of the piston unit when compressing the refrigerant and increases the moving speed of the piston unit when the refrigerant is sucked. The method of claim 18, The first accommodating part and the second accommodating part are respectively formed on surfaces facing the first connecting part and the second connecting part, Both ends of the fifth elastic member is accommodated in the first receiving portion and the second receiving portion, respectively, characterized in that the locking portion is formed to prevent the removal. The method of claim 19, Compressor, characterized in that the space formed for the first receiving portion and the second receiving portion to accommodate the locking portion is formed larger than the size of the locking portion. The method of claim 19, At the ends of the first accommodating portion and the second accommodating portion And a mounting jaw in which the fourth elastic member is mounted. The method of claim 18, The fourth elastic member is a compressor, characterized in that made of a coil spring. The method of claim 18, Between the coil spring and each connecting portion of the connecting rod And at least two or more protrusions are formed on the outer circumferential surface of each of the connecting portions, respectively, along the length direction thereof, and connected to each end of the coil spring between the protrusions. The method of claim 19, And the fifth elastic member comprises at least one of a rod of a flexible material, a plate of a flexible material, or a bar of a flexible material. The method of claim 19, The fifth elastic member is a compressor comprising at least one of a leaf spring, coil spring. The method of claim 19, Compressor, characterized in that the connection between each connecting portion of the connecting rod and the fifth elastic member is made by using at least one coupling method of bolts, rivets, welding coupling.

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