KR100508294B1 - That noise type outletvalve of refrigerator compressibility - Google Patents

Abstract

The present invention relates to a low noise discharge valve of a refrigerator compressor.

In the low noise type discharge valve of the refrigerator compressor of the present invention, noise reduction means is provided in the valve stopper to reduce noise generated by hitting the valve stopper of the discharge first and second plates during the opening and closing operation of the reed valve of the discharge valve plate. Characterized in that provided. Therefore, by providing the noise reduction means on the contact surface of the valve stopper, there is an effect to significantly reduce the noise generated when the reed valve hits the valve stopper.

Description

Low noise type discharge valve of refrigerator compressor {THAT NOISE TYPE OUTLETVALVE OF REFRIGERATOR COMPRESSIBILITY}

The present invention relates to a low noise discharge valve of a refrigerator compressor, and more particularly, to a low noise discharge valve of a refrigerator compressor which prevents noise generated by hitting a valve stopper when opening and closing a discharge valve.

In general, a compressor converts mechanical energy into compressed energy of a compressive fluid. The compressor sucks refrigerant gas from a low pressure evaporator and raises the pressure to a condensing pressure. Rotary compressors. There is a turbo compressor type.

The compressor is used in a refrigerator or an air conditioner, and when used in a refrigerator, the inside of the refrigerator is used as a low heat source, and the saturated steam of a low boiling point refrigerant having the outside as a high heat source is compressed to a high pressure and flowed to a condenser.

In the condenser, latent heat of evaporation is discharged from a high-temperature and high-pressure refrigerant to a high heat source outside the refrigerator to cause a phase change to a liquid refrigerant gas, and the liquid refrigerant gas is throttled to low temperature and low pressure through an expansion valve. Then it enters the evaporator.

On the other hand, the low-temperature, low-pressure refrigerant gas in the evaporator absorbs latent heat from the low heat source inside the refrigerator as a liquid phase, causing a phase change to the refrigerant gas in saturated steam state, and then entering the compressor again, thereby forming a refrigeration cycle. As a result, the inside of the refrigerator is continuously supplied with cold air, resulting in a freezing effect.

FIG. 1 is a plan view showing the internal structure of a hermetic reciprocating compressor performing the above role, and FIG. 2 is a cross-sectional view taken along the line AA of FIG. The upper and lower cases 14 and 12 are housed in a sealed manner and are compressed and / or leaf springs which are appropriate dust and soundproof means at predetermined intervals from the upper and lower cases 14 and 12. Is supported by the frame 16 at the bottom or side.

In addition, the compressor is composed of a cylinder block 18 fixed to the upper portion of the frame 16 in a horizontal shape and a piston 22 inserted into the cylinder 20 therein so as to reciprocate, and the piston 22 The suction and discharge valves 26 provided at the left end of the cylinder block 18 are formed by the reciprocating motion of the cylinder block 18 to inhale the refrigerant gas of low temperature and low pressure, and discharge the refrigerant gas of high temperature and high pressure. The discharge valve 26 is opened and closed passively by the pressure difference acting on both sides.

The reciprocating compressor configured as described above has a suction pipe 28 and a suction muffler 30 fixedly sealed to upper or lower casings 14 and 12 at a low temperature and low pressure during the backward movement of the piston 22. Through the external evaporator through the suction valve of the suction and discharge valve 26, the high-temperature, high-pressure refrigerant gas discharged from the compressor during the forward movement of the piston 22 is separated from the suction and discharge valve 26 From the discharge valve plate, the discharge pipe 32 and the upper to lower casings 14 and 12 are discharged to an external evaporator via a discharge pipe connecting pipe 34 fixedly sealed.

In addition, the refrigerant filling pipe 36 is fixed to the lower case 12 to be sealed and initially sealed after filling the refrigerant gas therein.

On the other hand, the electric motor is composed of a stator 38 is fixed to the lower portion of the frame 16 and a rotor 40 that rotates with a gap between the stator 38, the rotor 40 is It is fixed to the rotating shaft 42 is supported to be rotatable to the frame 16 to rotate together.

The rotary shaft 42 of the electric motor is formed to protrude the eccentric shaft 44 to the top of the frame 16 at the end to connect the piston 22 to the eccentric shaft 44 by the connecting rod and the number of eccentric shaft 44 Piston 22 is to reciprocate as much as the amount of eccentric rotation.

3 is an exploded perspective view illustrating the intake and discharge valves, the discharge muffler cover 50 having the bolt hole 51 for fastening the cylinder block 18, and the discharge first and second plates 52. (54) is constructed by welding.

The discharge first and second plates 52 and 54 are formed with a resonator connecting passage 56 formed laterally extending from the bolt receiving hole 55 and the refrigerant passage, and opening height of the discharge valve plate 70 described below. The valve stopper 57 of the function of adjusting the is formed.

In addition, the packing 60, the discharge valve plate 70, the valve plate 80, and the suction valve plate 90 are sequentially assembled to one side of the intake and discharge valve 26 to form the intake and discharge valve assembly 58. Will be constructed.

The discharge valve plate 70 includes a reed valve 72 having an elasticity, a axial resonator 74, and a bolt receiving hole 71. The valve plate 80 has a suction port 82 and a discharge port 84. ). In addition, a suction plate 92 is formed on the suction valve plate 90.

In such a configuration, when the piston rises, the suction and discharge valve 26 blocks the suction port 82 of the valve plate 80 by the suction plate 92 of the suction valve plate 90 and at the same time the discharge valve plate ( The reed valve 72 of 70 is opened and high pressure gas is discharged.

When the piston is lowered, the reed valve 72 of the discharge valve plate 70 is closed to block the discharge port 84 and the suction plate 92 of the suction valve plate 90 is opened to allow the refrigerant gas to be sucked.

 However, there was a problem that noise is generated while repeatedly hitting the valve stopper 57 which controls the opening degree of the reed valve 72 of the discharge valve plate 70.

An object of the present invention is to provide a low noise discharge valve of a refrigerator compressor provided with noise reduction means capable of reducing noise generated by hitting a valve stopper of a reed valve. It is done.

The present invention for achieving the above object, the discharge muffler cover brazing coupled to the suction and discharge valve, the discharge first, the second plate, and the packing, discharge valve plate, valve plate to one side of the discharge second plate In the low-noise type discharge valve of the refrigerator compressor in which the suction valve plate is sequentially bolted to constitute the suction and discharge valve assembly; Low noise type discharge of the refrigerator compressor, characterized in that the noise reduction means is provided on the valve stopper to reduce the noise generated by hitting the valve stopper of the discharge first, second plate during the opening and closing operation of the reed valve of the discharge valve plate Provide a valve.

The noise reduction means provides a low noise discharge valve of a refrigerator compressor, wherein a first noise reduction plate having the same shape as the discharge second plate is provided between the discharge first plate and the discharge second plate. do.

In addition, the noise reduction means provides a low noise discharge valve of a refrigerator compressor, wherein a second noise reduction plate having the same shape as the discharge second plate is provided between the discharge second plate and the packing. .

In addition, the noise reduction means provides a low noise type discharge valve of the refrigerator compressor, characterized in that the cap which is covered with the valve stopper is installed.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 is an exploded perspective view of a first embodiment for explaining a low noise discharge valve of a refrigerator compressor according to the present invention, Figure 5 is an exploded perspective view of a second embodiment for explaining a low noise discharge valve of a refrigerator compressor according to the present invention. 6 is a view of a third embodiment for explaining a low noise type discharge valve of a refrigerator compressor according to the present invention.

The same parts and numbers have been assigned to the same parts as in the prior art, and descriptions of duplicate parts are omitted.

As shown in FIG. 4, the discharge muffler cover 50 having the bolt hole 51 for fastening the cylinder block 18 and the discharge first and second plates 52 and 54 are welded. do.

The discharge first and second plates 52 and 54 are formed with a resonator connecting passage 56 formed laterally extending from the bolt receiving hole 55 and the refrigerant passage, and the discharge valve plate 70 is opened. A valve stopper 57 having a function of adjusting the height is formed.

In addition, the packing 60, the discharge valve plate 70, the valve plate 80, and the suction valve plate 90 are sequentially assembled to one side of the intake and discharge valve 26 to form the intake and discharge valve assembly 58. Will be constructed.

The discharge valve plate 70 includes a reed valve 72 having an elasticity, a axial resonator 74, and a bolt receiving hole 71. The valve plate 80 has a suction port 82 and a discharge port 84. ). In addition, a suction plate 92 is formed on the suction valve plate 90.

The reed valve 72 of the discharge valve plate 70 according to the characteristics of the present invention so as to reduce the noise generated by hitting the valve stopper 57 of the discharge first, second plate 52, 54 Noise reduction means is provided in the valve stopper 57.

The noise reduction means is preferably made of rubber material.

Referring to FIG. 4 again, the noise reducing means of the first embodiment for reducing the noise may include a first shape having the same shape as the discharge second plate 54 between the discharge first plate 52 and the discharge second plate 54. Noise reduction plate 100 is installed.

5 is a noise reduction means of the second embodiment, wherein a second noise reduction plate 102 having the same shape as the discharge second plate 54 is provided between the discharge second plate 54 and the packing 60. .

And Figure 6 is a noise reduction means of the third embodiment, the cap 103 is provided with a cap 103 that can be wrapped around the thimble shape.

Referring to the operation of the low-noise discharge valve of the refrigerator compressor according to the present invention configured as described above are as follows.

When the piston rises, the suction and discharge valve 26 blocks the suction port 82 of the valve plate 80 by the suction plate 92 of the suction valve plate 90 and simultaneously leads the discharge valve plate 70. The high pressure gas is discharged while the valve 72 is opened.

When the piston is lowered, the reed valve 72 of the discharge valve plate 70 is closed to block the discharge port 84 and the suction plate 92 of the suction valve plate 90 is opened to allow the refrigerant gas to be sucked.

At this time, the first noise reduction plate 100 provided between the discharge first plate 52 and the discharge second plate 54, and the second noise provided between the discharge second plate 54 and the packing 60. Reduction plate 102 is to reduce the noise while hitting the valve stopper (57).

In addition, the cap 103 which can be wrapped around the valve stopper 57 in a thimble shape also protects the valve stopper 57 from hitting the reed valve 72 to reduce noise.

Therefore, the noise reduction means significantly reduces the noise generated when the reed valve 72 strikes the valve stopper 57.

In the above description, it should be understood that those skilled in the art can make modifications and changes to the present invention without changing the gist of the present invention as merely illustrative of a preferred embodiment of the present invention.

As described above, the low noise type discharge valve of the refrigerator compressor according to the present invention has an effect of remarkably reducing the noise generated when the reed valve strikes the valve stopper by providing noise reduction means on the contact surface of the valve stopper.

1 is a plan view showing the internal structure of a conventional hermetic reciprocating compressor,

2 is a cross-sectional view taken along the line A-A of FIG.

3 is an exploded perspective view of a conventional suction and discharge valve,

4 is an exploded perspective view of a first embodiment for explaining a low noise discharge valve of a refrigerator compressor according to the present invention;

5 is an exploded perspective view of a second embodiment for explaining a low noise type discharge valve of a refrigerator compressor according to the present invention;

6 is a view of a third embodiment for explaining a low noise type discharge valve of a refrigerator compressor according to the present invention.

<Description of the symbols for the main parts of the drawings>

26: suction and discharge valve 50: discharge muffler cover

52, 54: discharge first and second plate 57: valve stopper

60 packing 70 discharge valve plate

72: reed valve 80: valve plate

82: suction port 84: discharge port

90: suction valve plate 92: suction plate

100, 102: 1st, 2nd noise reduction plate

103: cap

Claims (4)

delete The discharge muffler cover brazing coupled to the suction and discharge valves, the first and second discharge plates, and the packing, the discharge valve plate, the valve plate, and the suction valve plate are sequentially bolted to one side of the discharge second plate. In the low noise discharge valve of the refrigerator compressor constituting the discharge valve assembly, The second discharge plate between the first discharge plate and the second discharge plate so as to reduce noise generated by hitting the valve stopper of the first and second discharge plates during the opening and closing operation of the rib valve of the discharge valve plate. Low noise type discharge valve of the refrigerator compressor, characterized in that the first noise reduction plate of the same shape as that is installed. The discharge muffler cover brazing coupled to the suction and discharge valves, the first and second discharge plates, and the packing, the discharge valve plate, the valve plate, and the suction valve plate are sequentially bolted to one side of the discharge second plate. In the low noise discharge valve of the refrigerator compressor constituting the discharge valve assembly, The same shape as the discharge second plate between the discharge second plate and the packing so as to reduce the noise generated by hitting the valve stopper of the discharge first and second plates during the opening and closing operation of the rib valve of the discharge valve plate. The low noise type discharge valve of the refrigerator compressor, characterized in that the second noise reduction plate is installed. The discharge muffler cover brazing coupled to the suction and discharge valves, the first and second discharge plates, and the packing, the discharge valve plate, the valve plate, and the suction valve plate are sequentially bolted to one side of the discharge second plate. In the low noise discharge valve of the refrigerator compressor constituting the discharge valve assembly, When the rib valve opening and closing operation of the discharge valve plate of the refrigerator compressor, characterized in that the cap is covered with the valve stopper is installed so as to reduce the noise generated by hitting the valve stopper of the discharge first, second plate Low noise discharge valve.