KR200244987Y1 - Baffle structure for intercepting noise of compressor - Google Patents

Abstract

The present invention relates to a baffle structure for noise suppression of a compressor by installing a baffle on a compressor installed in an outdoor unit of a package air conditioner, thereby preventing noise generated when the compressor is driven and enabling quiet operation.

To this end, the present invention is characterized in that the baffle is installed at a height of 85 to 95% of the height of the compressor between the compressor and the PF condenser to sound insulation and sound absorption from the compressor.

Description

Baffle Structure for Compressor Noise Isolation {BAFFLE STRUCTURE FOR INTERCEPTING NOISE OF COMPRESSOR}

The present invention relates to a baffle structure for an outdoor unit of a package air conditioner.

More specifically, a baffle is installed between the compressor installed in the outdoor unit of the package air conditioner and the PF condenser, and the baffle is 85 to 95% of the height of the compressor to effectively block the noise generated when the compressor is driven. The present invention relates to a baffle structure for noise suppression of a compressor that enables quiet operation.

In general, the air conditioner widely used in the home or business office is separated into an outdoor unit and an indoor unit.

The outdoor unit of the air conditioner is provided with a compressor for compressing the refrigerant, and a condenser for cooling and condensing the refrigerant compressed by the rotation of the cooling fan.

In addition, the indoor unit is provided with an evaporator that cools the surrounding air by heat exchanged by the expanded refrigerant flowing through the condenser of the outdoor unit and passing through the expansion valve.

There are a number of capacitors used as outdoor units of package air conditioners, but some of the capacitors are configured by bending the condenser to reduce the installation space.

Recently, a parallel flow condenser for automobiles (Parallel Flow Condenser, PF condenser) has been adopted in outdoor units of packaged air conditioners in order to improve cooling capacity and to share components.

1 is an exploded perspective view showing the overall configuration of a conventional air conditioner outdoor unit, and FIG. 2 is a baffle structure of a conventional air conditioner.

First, as shown in FIG. 1, the outdoor unit for a package air conditioner in which the PF capacitor 31 is installed is disposed on the base panel 35 installed on the roof or the floor of the building, and the refrigerant is disposed on the base panel 35. There is a compressor 41 for compressing, a fan motor 22 for rotating the cooling fan 21, and a motor fixing bracket 24 having a mounting hole 23 to which the fan motor 22 is fixed.

The PF condenser 31 cools the refrigerant compressed by the compressor 41 according to the rotation of the cooling fan 21, and the front cover 13 and the rear cover 11 disposed at the front and the rear, respectively. Lose.

In addition, the front cover 13 constituting the front of the outdoor unit is formed with an inlet hole 14 to allow the outside air to flow during the rotation of the cooling fan 21, the rear cover 11 a plurality of heat radiation grooves 12 is formed so that the heated air is discharged to the outside through heat exchange.

Both sides of the PF capacitor 31 are attached with headers 32 and 33 through which refrigerant flows in and out, and a lower part of the PF capacitor 31 is provided with a condenser fixing bracket 34 for fixing the PF capacitor 31 to the base panel 35. do.

In addition, a baffle 42 is installed between the compressor 41 and the PF capacitor 31 to block the noise generated by the compressor 41 from being discharged to the outside, thereby acting as a sound insulation device.

However, as shown in FIG. 2, the conventional baffle structure does not provide satisfactory results in terms of noise blocking effect, since the conventional baffle structure blocks not only the compressor 41 but also the entire space where the compressor 41 is fixed. Rather, it creates a closed space where the compressor 41 is fixed, thereby revealing a problem that resonance sound occurs.

The present invention is devised to solve the above problems, the object of the present invention is to escape from the way to block the entire space of the conventional compressor, by installing a baffle slightly lower than the compressor, the emission of compressor noise is It is to provide a baffle structure for noise suppression of the compressor which can prevent direct spreading and also eliminate resonance sound.

1 is an exploded perspective view showing the overall configuration of a conventional air conditioner outdoor unit.

Figure 2 is a conventional general baffle structure.

3 is a baffle structure according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

11: rear cover 12: rib

13: front cover 14: inlet hole

21: cooling fan 22: fan motor

23: mounting hole 24: motor fixing bracket

31: parallel flow capacitor 32, 33: header

34: condenser fixing bracket 35: base panel

41 compressor 42 baffle

The present invention for achieving the above object, in the outdoor unit of the air conditioner including a compressor and a condenser, a baffle is installed between the compressor and the condenser, so that the height of the baffle is about 85 to 95% of the height of the compressor Characterized in that.

Hereinafter, the configuration of the present invention to be described in detail based on the accompanying drawings.

Figure 3 illustrates a baffle structure according to the present invention, based on the purpose of the present invention, the configuration of the other air conditioners except the compressor and the baffle is the same as in the prior art will be omitted.

As shown in FIG. 3, according to the present invention, a compressor 41 is fixed to an outdoor unit of an air conditioner, and a baffle for noise blocking of the compressor 41 is disposed between the compressor 41 and a condenser (not shown). 42) is installed to a height of 85 to 95% of the height of the compressor (41).

That is, if the height of the compressor 41 is T (T = 100), the height of the baffle 42 is T1, and the height difference between the compressor 41 and the baffle 42 is T2, the following equation is established. do.

T = T1 + T2, (85 = T1 = 95, 5 = T2 = 15).

Such a structure does not look much different from the conventional baffle structure, but has many advantages in terms of effects.

That is, in order to completely block the noise of the compressor, a closed space was formed by blocking not only the compressor but also the entire space where the compressor is fixed.

This method has the effect that the noise of the compressor is blocked, but on the contrary, the baffle for preventing the noise of the compressor forms a closed space, whereby the noise accumulates in the closed space to generate resonance sound, thereby effectively reducing noise. There was no rescue.

Therefore, although the baffle structure according to the present invention causes the slight baffle out of the baffle due to the diffraction phenomenon, the baffle structure is extremely insignificant compared to the resonance sound generated in the past, and the noise reduction effect is excellent.

In addition, the shape of the baffle itself is simple and simple, it is easy to assemble and easy to produce.

Experimental results of the baffle according to the present invention are as follows.

<Table 1>

Sample condition I'm after Left Ooh Vibration damper and conventional baffle on the right side of the front panel 58.0 59.8 59.7 54.7 Baffle mounting according to the present invention 58.2 58.7 58.9 54.5

Table 1 is a measurement of the noise of the compressor by mounting the baffle according to the prior art and the present invention, the noise reduction effect of the baffle according to the present invention is superior to the conventional baffle in all aspects except the front of the compressor. It can be seen that.

That is, when the height of the baffle is 85 to 95% of the height of the compressor, it does not form a sealed space, so that the noise increase due to the resonance sound does not occur, thereby increasing the noise reduction effect.

<Table 2>

Sample condition I'm after Left Ooh Compressor1 When there is no baffle 60.0 64.8 64.8 56.1 Baffle mounting according to the present invention 58.2 64.3 60.7 56.3 Compressor2 When there is no baffle 58.0 60.8 63.5 - Baffle mounting according to the present invention 58.3 60.1 59.6 54.1

Table 2 is an experimental value of noise difference when the baffle is not mounted and the baffle is mounted according to the present invention.

The measurement experiment was to take a high noise level after two minutes each of the two compressors that are not the same, the back side is reduced by 0.5 to 0.7 dB by the addition of the baffle, the left side has a high reduction effect of about 4 dB.

According to the present invention described above as described above, the resonance sound caused by the conventional baffle to block the entire area where the compressor is fixed to form a closed space can be removed, and the sound insulation of the noise spreading to the left and rear of the compressor and It is an effective design with excellent sound absorption.

In addition, it is possible to make a baffle with less material than conventional and easy to assemble, has the advantage of reducing the production cost and improved productivity.

Claims (1)

In the outdoor unit of the air conditioner having a compressor and a condenser and a structure that reduces the noise of the compressor by installing a baffle between the compressor and the condenser, the height of the baffle is installed so that the height of the compressor is about 85 to 95% Baffle structure for noise suppression of the compressor.