KR20030051090A - Device reducing vibration of compressor by accumulator - Google Patents

Abstract

PURPOSE: A vibration reduction device of a compressor using an accumulator is provided to reduce vibration of the compressor by adjusting the connecting stiffness of artificially tuned additional mass and parts. CONSTITUTION: A vibration reduction device of a compressor(100) using an accumulator(140) includes the compressor to suck a refrigerant into the inside of a cylinder(121) through a suction pipe, to compress, and to discharge to a discharge pipe, and a refrigerant discharge pipe(170). One end of the refrigerant discharge pipe is communicated to supply the refrigerant to the suction pipe and the other end is extended and combined to the inside of an accumulator case(150). The accumulator has a mass weight(171) to the end of the refrigerant discharge pipe of the inside of the accumulator case, to control mass and forms a stiffness control unit to the middle part, to control stiffness. Accordingly, the vibration transmitted from the compressor is resonated and thus, vibration is dissipated.

Description

Vibration reduction device of compressor using accumulators {DEVICE REDUCING VIBRATION OF COMPRESSOR BY ACCUMULATOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accumulator attached to one side of a compressor, and in particular, an accumulator for dissipating vibration or reducing resonance by tuning the stiffness and mass of the accumulator for vibration generated in the compressor. It relates to a vibration reduction device of the compressor using.

In general, the conventional hermetic compressor is an accumulator for separating and compressing the phase of the refrigerant introduced through the refrigerant pipe to the compressor 1 and one side thereof, as shown in FIG. 40).

The compressor 1 is composed of a compressor mechanism 20 for compressing a refrigerant accommodated in the compressor case 10, and a power mechanism 30 for providing a driving force to the compressor mechanism 20.

The power mechanism 30 is a stator 31 fixedly installed in the compressor case 10, a rotor 32 rotatably installed in the stator 31, and press-fitted to the center of the rotor 32. It consists of a rotating shaft 33 to interlock.

The compression mechanism 20 is a cylinder 21 to form a compression space of the refrigerant, and the upper and lower bearings 22 and 180 are coupled to the upper and lower portions so as to block the compression space of the cylinder to support the rotating shaft ( 22) and a roller 24 which is eccentrically coupled to the lower region of the rotary shaft 33 and accommodated in the compression space.

A coolant suction port 25 is formed at one side of the cylinder 21 to suck the coolant, and a coolant discharge port 26 is formed to discharge the compressed coolant.

The accumulator 40 includes an accumulator case 50 forming a receiving space of the refrigerant therein, and a refrigerant inlet pipe 60 and a refrigerant outlet pipe respectively coupled to the upper and lower sides of the accumulator case 50 so as to communicate with the inside of the accumulator case 50. 70 and a screen assembly 80 which suppresses the flow of the liquid refrigerant contained in the accumulator case 50 into the refrigerant discharge pipe 70.

The accumulator case 50 includes a cylindrical body portion 51, an upper cover 52 for sealing one end of the upper inlet side of the body 51, and a lower cover 53 for sealing one end of the lower outlet side. Is done.

The refrigerant inlet pipe 60 formed through the upper cover 52 to communicate with the refrigerant pipe, and the refrigerant in the gas phase separated from the accommodation space inside the accumulator case 40 through the lower cover 53 Refrigerant outlet pipes 70 flowing out to the compressor 1 are respectively formed, and the refrigerant outlet pipes 70 are supported by disc-shaped support brackets 90 whose ends extend into the accumulator case 40. .

The support bracket 90 penetrates the plate surface to allow the refrigerant to pass therethrough, and a plurality of refrigerant passage holes 91 are formed.

The screen assembly 80 is composed of a screen holder 82 having a hemispherical shape and a screen holder 82 fixedly coupled to the interior of the accumulator case 40 to support the screen 81.

By such a configuration, when the driving force generated by the power applied to the power transmission unit of the compressor is transmitted to the compression mechanism through the rotating shaft, the refrigerant sucked through the suction port of the cylinder is compressed in the compression space of the cylinder.

The vibration generated while compressing the refrigerant in the compression mechanism unit is transmitted along the refrigerant outlet pipe of the accumulator in communication with the refrigerant suction port of the cylinder, and the accumulator is lighter in mass than the main body of the compressor and has an empty interior. Since there is no device capable of absorbing vibration, vibration is transmitted to the refrigerant pipe along the refrigerant inlet tube coupled to the upper cover of the case along the refrigerant outlet tube to cause noise accompanying the vibration.

According to the present invention devised to solve the above problems by adjusting the mass or stiffness of the accumulator attached to one side of the compressor to absorb or disperse the vibration transmitted from the compressor by tuning the frequency (TUNING) In order to reduce the vibration generated in the compressor, or to prevent the transfer to the refrigerant pipe to provide a vibration reduction device of the compressor using the accumulator.

1 is a longitudinal sectional view of a conventional compressor;

Figure 2 is a longitudinal sectional view of the vibration reduction device of the compressor using the accumulator of the present invention.

3 is a longitudinal sectional view of the accumulator of the vibration reduction device of the compressor using the accumulator of the present invention;

Figure 4 is a longitudinal sectional view showing another embodiment of the vibration reduction device of the compressor using the accumulator of the present invention.

** Description of the main parts of the drawing **

100: compressor 110: compressor case

120: compressor section 121: cylinder

125: suction port 126: discharge port

140, 240: accumulator 150, 250: accumulator case

160, 260: refrigerant inlet pipe 170, 270: refrigerant outlet pipe

171: mass weight 172, 181: rigidity control unit

280: inner case holder 290: inner case

292: oil through hole

In order to achieve the above object, the present invention, the compressor for sucking and compressing the refrigerant through the suction pipe into the cylinder and discharged to the discharge pipe, and coupled to one side and one end is in communication with the other to supply the refrigerant to the suction pipe In the vibration reduction device of a compressor using an accumulator comprising a refrigerant discharge pipe extending coupled to the accumulator case, the accumulator has a mass weight for adjusting the mass at the end of the refrigerant discharge pipe inside the accumulator case; In addition, it is achieved by the vibration reduction device of the compressor using an accumulator, characterized in that to form a rigidity control unit to adjust the rigidity in the center thereof to resonate with the vibration transmitted from the compressor.

In addition, a compressor for sucking and compressing a refrigerant through a suction pipe into a cylinder and then compressing and discharging the refrigerant to a discharge pipe is coupled to one side thereof, and one end is connected to supply the refrigerant to the suction pipe, and the other end is extended and coupled to the accumulator case. In the vibration reduction device of the compressor using an accumulator including a refrigerant discharge pipe, the accumulator has an inner case having an oil through hole for adjusting the mass by the amount of oil accumulated with the refrigerant through the refrigerant inlet pipe, and the inside The case is fixed to the inside of the accumulator case, and including an inner case holder having a stiffness control unit for adjusting the rigidity, the mass of the oil accumulated in the bottom of the inner case and the rigidity of the inner case holder in the compressor Resonates with the transmitted vibration It achieves by the vibration reduction apparatus of the compressor using the accumulator characterized by the above-mentioned.

Hereinafter, the configuration and operation of the accumulator vibration reduction device for a compressor of the present invention will be described in detail as follows.

2 is a longitudinal sectional view of a hermetic compressor having a vibration lowering device of the accumulator for compressors of the present invention, FIG. 3 is a partially enlarged sectional view of the accumulator of FIG. 2, and FIG. 4 is another embodiment of a vibration reducing device of the accumulator for compressors of the present invention. An example is shown.

As shown in FIG. The compressor 100 is configured to be attached to an accumulator 140 for separating and compressing a phase of a refrigerant introduced through a refrigerant pipe to one side thereof to send and compress the refrigerant gas in a gaseous phase to the compressor.

The compressor 100 includes a compressor mechanism 120 that is accommodated in the compressor case 110 to compress the refrigerant, and an electric mechanism 130 that provides a driving force to the compressor mechanism 120.

The electric mechanism unit 130 is a stator 131 is fixedly installed in the compressor case 110, the rotor 132 is rotatably installed in the stator, and the rotary shaft 133 is pressed in the center of the rotor is interlocked Is done.

The compression mechanism 120 is a cylinder 121 to form a compression space of the refrigerant, and an upper bearing 122 coupled to the upper and lower portions so as to block the compression space of the cylinder 121 to support the rotation shaft and It consists of a lower bearing 123 and a roller 124 is coupled to the lower region of the rotating shaft so as to be eccentrically rotated and accommodated in the compression space.

The refrigerant inlet 125 is formed at one side of the cylinder 121 to suck the refrigerant, and the refrigerant discharge port 126 is formed by communicating with the upper side of the compressor case 110 so that the compressed refrigerant may be discharged.

As shown in FIG. 3, the accumulator 140 may include an accumulator case 150 forming an accommodating space therein and a refrigerant coupled to the accumulator case 150 above and below to communicate with the inside of the accumulator case 150. An inlet tube 160 and a refrigerant outlet tube 170, and a screen assembly 180 which prevents the liquid refrigerant contained in the accumulator case 150 from entering the refrigerant outlet tube 170.

The accumulator case 150 may have a cylindrical body portion 151, an upper cover 152 for sealing one end of the upper refrigerant inlet side of the body portion 151, and a lower cover 153 for sealing one end of the lower refrigerant outlet side. )

The refrigerant inlet pipe 160 formed through the upper cover 152 to communicate with the refrigerant pipe, and the refrigerant of the gaseous phase separated from the accommodation space inside the accumulator case 150 through the lower cover 153 Refrigerant outlet pipes 170 are respectively formed to flow out to the compressor 100, the refrigerant outlet pipe 170 is formed so that the end extends toward the inner side of the inlet case free vibration in the receiving space.

In the region between the refrigerant inlet tube 160 and the refrigerant outlet tube 170 inside the accumulator case 150, the liquid refrigerant flowing into the refrigerant receiving space through the refrigerant inlet tube 160 and falling to the bottom region is the refrigerant outlet tube. Screen assembly 180 is provided to inhibit entry into 170.

The screen assembly 180 has a screen holder 182 fixedly coupled to the inside of the accumulator case 150 and a screen 181 made of a mesh member having a hemispherical shape.

The refrigerant outlet pipe 170 is coupled to communicate with the suction port 125 formed on one side of the cylinder 121 and extends through the lower cover 153 of the accumulator 140 to extend into the internal refrigerant receiving space. In addition to forming the rigidity control unit 171 for controlling the rigidity in the middle of the extension tube is formed so that the mass weight 172 for inserting the mass at its end.

The stiffness control unit 171 is to reduce the cross-sectional area by taking the outer diameter, or to control the rigidity by forming a plurality of annular projections to subtract the cross-sectional area.

By such a configuration, the driving force generated by the power applied to the electric mechanism unit 130 of the compressor 100 is transmitted to the compression mechanism unit 120 through the rotation shaft, and the cylinder 121 of the compression mechanism unit 120. The refrigerant gas is sucked through the refrigerant discharge pipe 170 of the accumulator 140 coupled to communicate with the suction port 125, and is compressed and discharged.

Vibration of the rotating body of the electric mechanism unit 130 of the compressor 100 and vibration caused by the compression of the refrigerant of the compression mechanism unit 120 are coupled to communicate with the suction port 125 of the cylinder 121 of the compression mechanism unit 120. The refrigerant is delivered through the refrigerant discharge pipe 170 of the accumulator 140.

The frequency of the vibration transmitted through the refrigerant discharge pipe 170 of the refrigerant discharge pipe 170 is extended to the refrigerant receiving portion inside the accumulator 140 by using the principle of the copper reducer to tune the stiffness and mass as a variable. By controlling the stiffness of the stiffness control unit 171 and the mass of the mass weight 172 coupled to the end thereof, the vibration is reduced by inducing to resonate with the vibration frequency of the compressor to dissipate the vibration energy.

Figure 4 shows another embodiment of the accumulator vibration reduction device for the compressor of the present invention, the same configuration as the sealed rotary compressor of the embodiment shown in Figure 2 is given the same reference numerals and a repetitive description thereof will be omitted. .

The accumulator 240 includes an accumulator case 250 forming a receiving space of the refrigerant therein, and a refrigerant inlet pipe 260 and a refrigerant outlet pipe respectively coupled to the upper and lower sides of the accumulator case 250 so as to communicate with the refrigerant receiving space. 270 and an inner case 290 fixed to the inside of the accumulator case 250 by an inner case holder 280 that is press-fitted into the accumulator case 250.

The accumulator case 250 includes a cylindrical main body 251, an upper cover 252 for sealing one end of the upper inlet side of the main body 251, and a lower cover 253 for sealing one end of the lower outlet side of the accumulator case 250. Is done.

The inner case holder 280 fixes the inner case 290 to maintain a predetermined gap on the inner circumferential surface of the accumulator case 250, and reduces the cross-sectional area by pulling the inner diameter on the inner surface to which the inner case is fixed, or annularly. Forming the projection to change the shape and subtract the cross-sectional area to form a rigidity control unit 281 for controlling the rigidity.

The inner case 290 is configured such that the oil introduced with the refrigerant into the inside through the refrigerant inlet pipe 260 accumulates at the bottom thereof, and when the accumulated oil is a certain amount, the oil is discharged through the oil regulating through hole 292 to the refrigerant. Through the outlet pipe 270 to be introduced into the cylinder 121 of the compressor 100, and to adjust the position of the oil control through hole 292 to adjust the mass of oil accumulated in the inner case 290 Is formed.

By such a configuration, the vibration generated by the power mechanism unit 130 of the compressor 100 and the vibration generated by the compression of the refrigerant of the compression mechanism unit 120 is the suction port of the cylinder 121 of the compression mechanism unit 120 ( It is delivered to the accumulator 240 through the refrigerant discharge pipe 270 of the accumulator 240 which is coupled in communication with the 125.

The frequency of the vibration transmitted through the refrigerant discharge pipe 270 is the stiffness of the stiffness control unit 281 formed in the inner case holder 280 for fixing the inner case 290 inside the accumulator case 250 and the inside The vibration of the compressor 100 is reduced by dissipating vibration energy by tuning to resonate with the vibration frequency of the compressor 100 using the mass of oil accumulated at the bottom of the case 290 as a variable.

As described above, according to the present invention, vibrations generated from the compressor are adjusted by artificially tuning the additional mass artificially tuned and the connection stiffness of each component, thereby causing resonance with a specific frequency that causes vibration problems in the compressor, as well as vibration energy. By dissipating has the effect of reducing the vibration of the compressor.

Claims (4)

Compressor for sucking and compressing the refrigerant through the suction pipe into the cylinder and discharging the refrigerant to the discharge pipe, and coupled to one side thereof, and having one end connected to supply the refrigerant to the suction pipe, and the other end extending into the accumulator case. In the vibration reduction device of the compressor using an accumulator including a pipe, The accumulator includes a mass weight for adjusting the mass at the end of the refrigerant discharge pipe inside the accumulator case, and forms a stiffness control part to adjust the rigidity at the center thereof to resonate with the vibration transmitted from the compressor. Vibration reduction device of the compressor using an accumulator, characterized in that dissipation. A compressor for sucking and compressing the refrigerant through the suction tube into the cylinder and then compressing the discharge to the discharge tube, and coupled to one side thereof, and having one end connected to supply the refrigerant to the suction tube, and the other end extending into the accumulator case. In the vibration reduction device of the compressor using an accumulator including a discharge pipe, The accumulator has an inner case having an oil through hole for adjusting the mass by the amount of oil accumulated and flowed together with the refrigerant through the refrigerant inlet pipe, and fixing the inner case inside the accumulator case and adjusting its rigidity. Including an inner case holder having a rigidity control unit for adjusting the mass of oil accumulated in the bottom of the inner case and the rigidity of the inner case holder by resonating with the vibration transmitted from the compressor to dissipate the vibration using an accumulator Vibration reducing device of the compressor. The vibration reduction device of claim 1, wherein the stiffness control unit adjusts the stiffness by removing the outer surface or changing the shape of the cross section. The vibration reduction device of the compressor according to any one of claims 1 to 3, wherein the stiffness control unit adjusts the stiffness by inserting and combining materials having different stiffnesses.