KR20080025965A - Air conditioner - Google Patents

Abstract

An air conditioner is provided to reduce noise and vibration generated from a refrigerant pipe in an intake side of a compressor when the compressor is operated by employing a flexible pipe as a part of the refrigerant pipe. An air conditioner comprises an indoor heat exchanger and a discharge pipe(210) which is connected to a discharge side of the indoor heat exchanger. Refrigerant discharged from the indoor heat exchanger is introduced into a compressor. An intake pipe(220) is connected to an intake side of the compressor. Two sides of a flexible pipe(250) are respectively coupled to the discharge pipe and the intake pipe. A pair of guide pipes(230) connect the flexible pipe with the discharge pipe and the intake pipe. The discharge pipe and the intake pipe have insertion sections formed therein so that the flexible pipe is inserted.

Description

Air Conditioner

1 is a view showing a refrigerant pipe structure of an integrated air conditioner according to the prior art.

2 is an exploded perspective view of an air conditioner according to the present invention.

Figure 3 schematically shows the internal configuration of the air conditioner with a piping structure according to the present invention.

Figure 4 is a perspective view showing a piping structure of the compressor suction side according to the spirit of the present invention.

5 is an exploded perspective view of the piping structure.

6 is a cross-sectional view taken along the line II ′ of FIG. 4;

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

210: discharge tube 220: suction tube

230: guide tube 250: flexible tube

The present invention relates to an air conditioner, and more particularly, to an air conditioner for reducing vibration and noise generated during operation of an air conditioner, and for improving operating performance.

In general, an air conditioner is a device that sucks indoor air, heats the sucked air to cool or heat it, and discharges the cooled or heated air into the room.

The air conditioner is classified into a window type air conditioner in which a refrigeration cycle device is mounted in one body and installed in a window, and a separate air conditioner in which the indoor unit and the outdoor unit are separated and installed in the indoor and outdoor areas, respectively.

In general, the outdoor unit is provided with a compressor, a condenser and an expansion device, and the indoor unit is provided with an evaporator. Each of these components is connected by a refrigerant pipe, the refrigerant is configured to circulate.

1 is a view showing a refrigerant pipe structure of an integrated air conditioner according to the prior art.

Referring to Figure 1, the integrated air conditioner according to the prior art, the compressor 10 is mounted on the base 1 forming the bottom. In addition, the front of the compressor 10 is equipped with an indoor heat exchanger (2) for heat exchange of the indoor air, the rear of the compressor (10) is equipped with an outdoor heat exchanger (3) for heat exchange of the outdoor air. Here, although not shown, the air conditioner is partitioned by the barry from the indoor side and the outdoor side.

In addition, the accumulator 9 for filtering the liquid refrigerant that has not been evaporated by the indoor heat exchanger 2 to one side of the compressor 10 to move the refrigerant in the gas phase to the compressor 10 is provided. It is provided. Accordingly, the accumulator 9 is connected to a suction pipe 11 through which the refrigerant passing through the evaporator is sucked.

And, the other side of the compressor 10 is connected to the discharge pipe 15 for allowing the refrigerant compressed by the compressor 10 to be moved to the outdoor heat exchanger (3).

In detail, the suction pipe 11 is formed to form at least one loop 12 so that the vibration and noise generated by the compressor 10 is reduced, and the vibration of the suction pipe 11 is reduced in the loop 12. In order to cover the vibration damper 13 is configured.

However, in the related art, the length of the suction pipe 11 is remarkably increased by the loop 12 constituting the suction pipe 11, thereby increasing the manufacturing cost of the suction pipe 11 and increasing the loop 12. As the vibration damping material 13 is wrapped, there is a problem in that the cost of the vibration damping material 13 is additionally generated.

In addition, as the length of the suction pipe 11 is increased, the structure of the space in which the suction pipe 11 is located becomes complicated, and the utilization of the space is reduced. This problem is an integrated air conditioner in which the indoor unit and the outdoor unit are integrally formed. In case of more serious.

The present invention has been proposed in order to solve the problems as described above, the air conditioner to simplify the structure of the refrigerant pipe on the suction side of the compressor, reduce the cost and at the same time reduce the vibration and noise of the refrigerant pipe on the suction side. It is aimed to suggest.

In addition, it is an object of the present invention to improve the piping structure of the refrigerant suction pipe of the compressor, to propose an air conditioner to increase the compression performance and thereby energy consumption efficiency of the compressor.

Air conditioner according to the present invention for achieving the object as described above is an indoor heat exchanger; A discharge tube connected to the discharge side of the indoor heat exchanger; A compressor for sucking the refrigerant discharged from the indoor heat exchanger; A suction pipe connected to the suction side of the compressor; Both sides include a flexible pipe coupled to the discharge pipe and the suction pipe.

Hereinafter, with reference to the drawings will be described a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments within the scope of the same idea.

Figure 2 is an exploded perspective view of the air conditioner according to the present invention, Figure 3 is a view schematically showing the internal configuration of the air conditioner with a piping structure according to the present invention.

In this embodiment, an example of an integrated air conditioner in which the indoor unit and the outdoor unit are integrally formed among the types of the air conditioner will be described as an example, but the idea of the present invention can be applied to other types of air conditioners.

2 and 3, the air conditioner according to the present invention includes a base 110 forming a bottom, a cabinet 120 coupled to the base 110, and a front coupled to the front surface of the cabinet 120. The exterior is formed by the panel 130.

In detail, the front panel 130 is equipped with a filter 132 for filtering the air sucked in, the front grill 134 is formed on the front of the filter 132 to form the front appearance of the air conditioner. Is mounted.

On the other hand, the rear side of the front panel 130 is equipped with an indoor heat exchanger 140 for heat exchanged suction air, the rear side of the indoor heat exchanger 145 is equipped with an air guide 145, the air guide ( 145 is mounted to the rear scroll 150.

Therefore, the sucked indoor air is heat-exchanged while passing through the indoor heat exchanger 140, and the heat-exchanged air is guided to the scroll 150 through the air guide 145. In addition, the air guided to the scroll 150 is discharged to the outside through the air guide 145 and the flow is guided by the scroll 150 again.

Meanwhile, a barrier 155 is mounted on the rear side of the scroll 160. By this barrier 155 the air conditioner is partitioned into an indoor side and an outdoor side.

The motor 160 is coupled to the rear side of the barrier 155, and the motor 160 is fixed by the motor mount 165 supported by the base 110. The front side of the motor 160 is equipped with an indoor fan 170 for forcibly blowing indoor air, and the rear side of the motor 160 is equipped with an outdoor fan 175 for forcibly blowing outdoor air.

In addition, the rear side of the barrier 155 is equipped with a shroud 180 for guiding the flow of air blown by the outdoor fan 175, the rear side of the shroud 180, the indoor air is heat exchanged Heat exchanger 185 is mounted.

In addition, a compressor 190 for compressing the refrigerant introduced from the indoor heat exchanger 140 is installed at the base 110 of the outdoor side, and one side of the compressor 190 is driven by the indoor heat exchanger 140. An accumulator 195 is provided to filter the liquid refrigerant that has not been evaporated so that the refrigerant in the gas phase moves to the compressor 190.

Here, in the present invention, the flexible pipe 250 is used as part of the refrigerant pipe 200 for allowing the refrigerant discharged from the indoor heat exchanger 140 to be sucked into the compressor 190 (or the accumulator). It is characterized in that the vibration and noise of the refrigerant pipe (which is generated in the compression process of 190) is reduced.

In the present exemplary embodiment, the flexible pipe 250 is used in the refrigerant pipe 200 connected to the suction side of the accumulator 195, but is directly connected to the suction side of the compressor 190. The flexible pipe 250 may be used in the refrigerant pipe 200, and in the following, the case in which the flexible pipe 250 is used in the refrigerant pipe 200 directly connected to the suction side of the compressor 190 is one example. Let's explain.

4 is a perspective view showing a pipe structure of the compressor suction side according to the spirit of the present invention, FIG. 5 is an exploded perspective view of the pipe structure, and FIG. 6 is a cross-sectional view taken along line II ′ of FIG. 4.

4 to 6, the piping structure of the compressor suction side according to the spirit of the present invention is the discharge pipe 210 is connected to the discharge end of the indoor heat exchanger 140, and the suction side of the compressor 190 A suction pipe 220 connected to the suction pipe 220, one end of which is connected to the suction pipe 220, and the other end of which is connected to the discharge pipe 210, and the flexible pipe 250 and the flexible pipe 250 and the suction pipe 220 and A guide tube 230 is included to secure the coupling of the discharge tube 210.

In detail, the suction pipe 220 and the discharge pipe 210 may be made of copper or aluminum, and the flexible pipe 250 may be a flexible pipe having a free flow, and a rubber pipe may be used. .

In addition, the suction pipe 220 is formed with an insertion portion 222 through which a predetermined portion is inserted into the flexible pipe 250, and the outer diameter of the insertion portion 222 is formed smaller than the outer diameter of the suction tube 220. In addition, the flexible pipe 250 has an inner diameter corresponding to the insertion part 222.

Therefore, when the suction pipe 220 is coupled to the flexible pipe 250, only the insertion portion 222 of the suction pipe 220 is inserted into the flexible pipe 250. In addition, since the inner diameter of the flexible pipe 250 and the outer diameter of the insertion part 222 are the same, the insertion part 222 is forcibly fitted to the flexible pipe 250 and is primarily fixed.

In addition, a plurality of cutouts 224 are formed on the outer circumferential surface of the insertion part 222 to facilitate coupling with the flexible pipe 250 in the circumferential direction.

The cutout 224 is firmly coupled to the inserting portion 222 and the flexible pipe 250 when a pressing process to be described later is performed while the inserting portion 222 is coupled to the flexible pipe 250. It is further played the role of termination.

In addition, the insertion part 222 may be coated in order to increase the mutual adhesion in the state in which the insertion part 222 is inserted into the flexible pipe 250.

On the other hand, the guide tube 230, the suction pipe 220 and the flexible pipe 250 is coupled to the flexible pipe 250 and the suction pipe 220 by compression in a state of being coupled.

In detail, the guide tube 230 has a first insertion hole 232 through which the flexible tube 250 is inserted at one side thereof, and a second insertion part 222 of the suction tube 220 at the other side thereof. Insertion hole 234 is formed.

The first insertion hole 232 is formed to be the same as or larger than the outer diameter of the flexible pipe 250, and the second insertion hole 234 is formed to be the same or larger than the outer diameter of the insertion part.

Therefore, when the flexible tube 250 is inserted from one side of the guide tube 230, and the insertion portion 222 of the suction tube 220 is inserted from the other side, the flexible tube 250 and the insertion portion 222 is It is coupled inside the guide tube 230.

On the other hand, in the state in which the flexible tube 250 and the insertion portion 222 is coupled inside the guide tube 230 as described above, the flexible tube 250 and the insertion portion 222 is firmly coupled A compaction process is performed to make it possible.

In detail, the pressing process is to apply pressure at a plurality of points of the guide tube 230, the coupling of the guide tube 230 and the flexible tube 250 by the pressure and the flexible tube 250 and the insertion portion ( 222 is combined.

Here, one point of the compression point is preferably the suction pipe 220 side end of the guide tube 230. Therefore, when pressing the suction pipe side end of the guide tube 230, the guide tube 230 can be directly coupled to the suction tube 220.

At this time, the insertion portion 222 is formed with a coupling groove 226 is coupled to a predetermined portion of the end portion of the pressurized guide tube 230, the insertion groove 226 is inserted into the guide tube 230 with. The portion 222 may be firmly coupled.

In the present embodiment, the guide tube 230 is preferably the same material as the suction tube and the discharge tube, it is noted that the material of the guide tube 230 is not limited in this embodiment.

In addition, since the structure of the suction pipe 220 described in this embodiment is applied to the discharge pipe in the same manner, the description of the discharge pipe 210 will be omitted.

Hereinafter, the coupling method of the said piping structure is demonstrated.

First, the flexible tube 250 is inserted into the first coupling hole 232 of the guide tube 230, and the insertion portion 222 of the suction tube 220 is inserted into the second coupling hole 234. Then, the insertion part 222 is forcibly fitted to the flexible pipe 250 inside the guide tube 230 and is primarily coupled.

Then, the pressure is applied at a plurality of points of the guide tube 230 in a state in which the insertion portion 222 and the flexible tube 250 are coupled. Then, the guide tube 230 and the flexible tube 250 is compressed, the flexible tube 250 and the insertion portion 222 is compressed. At this time, as the flexible pipe 250 is in close contact with the cutout portion 2224 of the insertion part 220, the adhesion between the insertion part 222 and the flexible pipe 250 may be increased.

In addition, the guide tube 230 is pressed into the coupling groove 226 of the insertion portion 222 by the pressure of the suction end side of the guide tube 230.

As such, a part of the suction side refrigerant pipe of the compressor 190 is replaced with the flexible pipe 250, so that the length of the compressor 190 suction side refrigerant pipe can be minimized, so that the cost of the refrigerant pipe is reduced. This can be minimized.

In addition, since the flexible pipe 250 is used as part of the refrigerant pipe, when the compressor 180 is operated, vibration and noise of the suction side refrigerant pipe of the compressor 190 may be reduced.

The flexible pipe 250 is primarily coupled to the inserting portion of the suction pipe 220 and the discharge pipe 210, and as the secondary pipe is secondarily coupled by the compression process, the coupling is firm and the internal pressure is increased by the internal pressure. 250 is prevented from being separated from the suction pipe 220 and the discharge pipe 210.

On the other hand, Table 1 below is a table comparing the performance of the case where the suction pipe side of the compressor 190 of the compressor 190 is formed in a loop shape and when the flexible pipe 250 is used as part of the refrigerant pipe.

Loop shaped refrigerant tube Refrigerant tube with flexible tube capacity Btu / h 6572.8 6672.9 % 93.9% 95.3% Transtion (%) 1.4% Power input W 715.1 704.8 % 99.3% 97.9% Transtion (&) -1.4% EER Btu / hW 9.17 9.47 % 94.5% 97.6% Transtion (%) 3.1%

Here, the application criteria of the experiment is 7000Btu / h, 720W, 6.6A.

Referring to Table 1, when the flexible pipe is used for the suction pipe of the compressor, it can be seen that the cooling capacity is improved by 1.4% compared to the conventional refrigerant pipe formed in the loop shape, the power consumption is reduced by 1.4% I can see that.

In addition, it can be seen that the energy efficiency ratio is improved by 3.1% in the relationship between the cooling capacity and the power consumption.

Thus, as the flexible pipe is used as part of the suction side refrigerant pipe of the compressor, the temperature of the refrigerant sucked into the compressor is prevented from rising, thereby improving the cooling performance and the energy consumption efficiency of the air conditioner.

As described above, the present invention proposes the idea that a flexible pipe is used for the suction side refrigerant pipe of the compressor, but the idea of the present invention is not limited thereto, and it can be used for the discharge side refrigerant pipe of the compressor.

According to the present invention as proposed, by using a flexible pipe in the suction side refrigerant pipe of the compressor, compared to the conventional loop-shaped refrigerant pipe, the length of the compressor suction side refrigerant pipe can be minimized, the refrigerant pipe The cost to be minimized.

In addition, since the length of the compressor suction side refrigerant pipe is minimized, the refrigerant pipe becomes structurally simple and the utilization of the space in which the refrigerant pipe is located can be increased.

The flexible pipe is primarily coupled to the insertion part of the suction pipe and the discharge pipe, and as the secondary pipe is coupled to the secondary part by the compression process, the coupling is secured and the flexible pipe is inserted into the insertion part of the suction pipe and the discharge pipe by internal pressure. Separation can be prevented.

In addition, since the flexible pipe is used as part of the compressor suction side refrigerant pipe, vibration and noise of the suction side refrigerant pipe of the compressor can be reduced during operation of the compressor.

In addition, as the flexible pipe is used as a part of the suction side refrigerant pipe of the compressor, as the temperature of the refrigerant sucked into the compressor is prevented from rising, the cooling performance and the energy consumption efficiency of the air conditioner can be improved.

Claims (8)

Indoor heat exchanger; A discharge tube connected to the discharge side of the indoor heat exchanger; A compressor for sucking the refrigerant discharged from the indoor heat exchanger; A suction pipe connected to the suction side of the compressor; Air conditioner includes a flexible pipe both sides are coupled to the discharge pipe and the suction pipe. The method of claim 1, Air conditioner further comprises a pair of guide pipes for guiding the flexible pipe and the suction discharge pipe. The method of claim 2, And the suction pipe and the discharge pipe include an insertion part inserted into the flexible pipe. The method of claim 3, wherein The insert is an air conditioner, characterized in that a plurality of cutouts are formed in the circumferential direction. The method of claim 3, wherein The insertion unit has an air conditioner is formed with a coupling groove for coupling with the guide tube. The method of claim 2, The guide tube has an air conditioner including a first insertion hole into which the flexible pipe is inserted and a second insertion hole into which the suction pipe or the discharge pipe is inserted. The method of claim 2, The guide structure, the flexible pipe and the suction pipe is compressed by the pressure applied at a plurality of points outside the guide pipe, the piping structure of the air conditioner. The method of claim 1, An accumulator is provided at the suction side of the compressor to filter only the liquid refrigerant from the refrigerant discharged from the heat exchanger so that the refrigerant in the gas phase is sucked into the compressor, and the suction pipe is connected to the suction side of the accumulator. Air conditioner.

Images