KR102368985B1 - Outdoor unit of airconditioner - Google Patents

Abstract

The present invention relates to an air conditioner capable of effectively reducing vibration of a refrigerant pipe generated by a compressor regardless of the type of compressor by coupling a vibration reducing device to the refrigerant pipe.
An air conditioner according to the present invention includes an outdoor unit that exchanges heat with outdoor air; and an indoor unit connected to the outdoor unit to air-condition indoor air, wherein the outdoor unit includes a compressor having a motor disposed therein and compressing a refrigerant by a rotational force of the motor; one or more refrigerant pipes for guiding the refrigerant so that the refrigerant compressed from the compressor circulates through the outdoor unit; and a vibration reducing device coupled to at least one of the refrigerant pipes to reduce vibration of the refrigerant pipe, wherein the vibration reducing device is partially filled in the internal space and moves in a direction opposite to the vibration direction of the refrigerant pipe Thus, it includes a reduction unit that forms a repulsive force to offset the kinetic force according to the vibration of the refrigerant pipe,

Description

Outdoor unit of air conditioner {OUTDOOR UNIT OF AIRCONDITIONER}

The present invention relates to an outdoor unit of an air conditioner.

An air conditioner is a device for maintaining the air in a predetermined space in the most suitable state according to the use and purpose. In particular, the internal refrigerant undergoes a phase change while circulating through the compressor, the condenser, the expander, and the evaporator.

In general, the air conditioner includes a compressor, a condenser, an expansion device, and an evaporator, and a refrigerant cycle for performing compression, condensation, expansion and evaporation of the refrigerant is driven to cool or heat the predetermined space. .

The predetermined space may be variously proposed according to a place where the air conditioner is used. For example, when the air conditioner is disposed in a home or office, the predetermined space may be an indoor space of a house or a building. On the other hand, when the air conditioner is disposed in a vehicle, the predetermined space may be a boarding space in which a person rides.

When the air conditioner performs a cooling operation, the outdoor heat exchanger provided in the outdoor unit functions as a condenser, and the indoor heat exchanger provided in the indoor unit functions as an evaporator. On the other hand, when the air conditioner performs a heating operation, the indoor heat exchanger functions as a condenser and the outdoor heat exchanger functions as an evaporator.

Meanwhile, for the cooling or heating operation of the air conditioner, the compressor functions to compress the refrigerant therein to a high pressure. For example, the compressor may have a cylinder and a motor formed therein. In this case, the piston formed inside the cylinder may reciprocate up and down by the operation of the motor and the cylinder, and the refrigerant inside may be compressed by the up and down reciprocating motion of the piston.

However, due to the operation of the motor and the cylinder inside the compressor, vibration occurs in the compressor and the piping connected to the compressor and the surrounding components, or due to the opening and closing of a valve disposed inside the compressor in the process of discharging the compressed refrigerant from the compressor. There is a problem in that the pressure pulsation of

In this case, vibration and noise of the compressor are induced by the vibration of the pipe, and there is a problem in that the pipe is damaged or destroyed.

Conventionally, in order to solve this problem, a stator having a constant mass is disposed in a pipe around the compressor.

In detail, by fixing a stator having a constant mass around the pipe through which the refrigerant compressed from the compressor is discharged, vibration of the pipe itself is prevented. In this case, since the stator is fixed to the pipe, an additional mass of the stator itself can be supplied to the pipe to control the vibration caused by the pulsation. For example, in this case, the stator may be made of rubber.

The invention related to the conventional vibration reducing device for a compressor is disclosed as follows.

[Prior literature]

1. Application No. 10-2003-0056150 (Publication Date: February 23, 2005), Title of Invention: Vibration reduction device for a reciprocating compressor.

However, the above prior literature has the following problems.

In the case of a constant speed compressor that uses a motor rotating at a constant speed to compress the refrigerant in the air conditioner, only a stator having a certain mass is fixed to the pipe connected to the compressor, which has the effect of preventing the vibration of the pipe due to pulsation. , in order to control the amount of compression of the refrigerant according to the degree of cooling or heating, in the case of an inverter compressor in which the rotational speed of the motor can be controlled, the pulsation is variable because the amount of compression of the refrigerant discharged from the compressor varies depending on the situation, and accordingly, the pulsation of the pipe Vibration is also variable.

When the stator is connected to the pipe of the inverter compressor, since the magnitude of the vibration of the pipe is variable, the vibration can be controlled when the magnitude of the vibration is small, but when the magnitude of the vibration increases, there is a problem that the vibration cannot be controlled.

In addition, as the size of the stator is increased in order to control the large vibration, the stator production cost increases, and at the same time, the pipe cannot overcome the weight of the stator and the pipe is damaged. In addition, as the size of the machine room is increased in order to secure the arrangement space of the stator, there is a problem in that the size of the outdoor unit increases or the arrangement of the compressor and the rest of the components in the machine room becomes complicated.

The present invention has been proposed to solve the above problems, and an object of the present invention is to reduce vibration of a refrigerant pipe according to the operation of a compressor.

In addition, a motor having a variable rotational speed is disposed in the compressor, and as the pulsation magnitude of the discharged refrigerant varies, the purpose of the present invention is to reduce the vibration according to the change in the vibration of the pipe.

In addition, even when the refrigerant pipe vibrates, the vibration reducing device is fixed to the refrigerant pipe, so that the vibration reducing device can be operated stably.

According to the outdoor unit of the air conditioner according to this embodiment of the present invention, the compressor includes a motor, the compressor compressing the refrigerant by the rotational force of the motor; a refrigerant pipe provided at one side of the compressor and guiding the flow of the refrigerant to be sucked into the compressor or the flow of the refrigerant compressed in the compressor; and a vibration reducing device coupled to the refrigerant pipe to reduce vibration of the refrigerant pipe generated according to the operation of the compressor.

In addition, the vibration reducing device may include a main body having an internal space; And it is provided to be movable in one direction in the inner space, it may include a reduction unit for canceling the vibration in the other direction of the refrigerant pipe.

According to the air conditioner using the reduction device according to the embodiment of the present invention having the configuration as described above, there are the following effects.

First, even when the compression amount of the refrigerant can be changed like an inverter compressor as well as an existing constant speed compressor, a vibration can be reduced according to the size of the pipe vibration according to the pulsation size of the refrigerant discharged from the compressor by using a single reducing device. can have an effect.

Second, by reducing the vibration of the compressor and the pipe connected thereto, there is an effect of reducing vibration and noise generated from the compressor.

Third, since there is no need to produce a newly designed reduction device according to the magnitude of vibration like the existing stator, only one standardized reduction device needs to be produced, thereby reducing production cost and production time.

Fourth, since the size is standardized, there is an effect that not only can the arrangement of structures around the compressor be uniform, but also the size of the machine room formed in the outdoor unit can be standardized.

1 is a perspective view of an outdoor unit of an air conditioner according to an embodiment of the present invention;
2 is a diagram of the internal configuration of the outdoor unit of the air conditioner according to the embodiment of the present invention.
3 is an exploded view of a vibration reducing device in the configuration of an outdoor unit of an air conditioner according to an embodiment of the present invention;
4 is an enlarged view of part A of FIG. 1 ;
5 is a cross-sectional view taken along a portion a-a' of FIG. 3;
Figure 6 is an enlarged view of part B of Figure 1;
7 is a cross-sectional view taken along a portion b-b' of FIG. 5;
8 is a resonant frequency of a vibration reducing device in the configuration of an outdoor unit of an air conditioner according to an embodiment of the present invention.
9 is a view showing the kinetic force between the vibration reducing device and the refrigerant pipe in the X portion of FIG.
Figure 10 is a view showing the kinetic force between the vibration reducing device and the refrigerant pipe in the Y portion of Figure 7;

Hereinafter, with reference to the accompanying drawings, the embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. The present invention may be embodied in many different forms and is not limited to the structure or method described herein.

1 is a perspective view of an outdoor unit according to an embodiment of the present invention, and FIG. 2 is a view showing an internal configuration of the outdoor unit according to an embodiment of the present invention.

1 and 2 , the air conditioner according to an embodiment of the present invention includes an outdoor unit 1 that exchanges heat with outdoor air, and an indoor unit (not shown) disposed in an indoor space to condition indoor air. .

The outdoor unit 1 includes a case 10 that forms an exterior and contains a plurality of components. The case 10 includes a suction unit (not shown) for sucking outdoor air and a discharge unit 12 for discharging the suctioned air after heat exchange. The discharge part 12 may be formed in front of the case 10 .

A compressor 21 , a gas-liquid separator 22 , an oil separator 23 , an outdoor heat exchanger 31 and an outdoor fan 32 , which will be described later, are provided inside the case 10 .

The compressor 21 , the gas-liquid separator 22 , the oil separator 23 , the outdoor heat exchanger 31 , and the outdoor fan 32 may be installed above a base constituting the bottom surface of the outdoor unit 1 .

In addition, a plurality of refrigerant pipes 24 for guiding the refrigerant circulating in the outdoor unit 1 are provided inside the case 10 . A vibration reducing device 400 to be described later may be coupled to the refrigerant pipe 24 .

The configuration of the refrigerant pipe 24 and the vibration reducing device 400 will be described later with reference to the drawings.

The case 10 may further include an outdoor unit cover 11 . The outdoor unit cover 11 may selectively open the internal configuration of the outdoor unit 1 , and as the outdoor unit cover 11 is opened, the outdoor unit internal configuration may be installed and repaired by an administrator.

The outdoor unit cover 11 may be formed to open at least one surface of the outdoor unit, and for example, the outdoor unit cover 11 may be formed to be rounded to open front and side surfaces.

In the outdoor unit 1 of the air conditioner according to the embodiment of the present invention, a compressor 21 for compressing a refrigerant is disposed on the outlet side of the plurality of compressors 21 and is discharged from the plurality of compressors 21 . An oil separator 23 for separating oil from the refrigerant is included.

The compressor 21 may include a motor therein, and may compress the refrigerant by rotation of the motor. As an example, the compressor 21 may be a constant speed compressor in which the internal motor rotation speed is constant, and as another example, the compressor 21 may be an inverter compressor in which the internal motor rotation speed is variable according to circumstances. When the compressor 21 is an inverter compressor, the amount of compressed refrigerant may be adjusted according to circumstances.

At the outlet side of the oil separator 23, a flow conversion unit 26 for guiding the refrigerant discharged from the compressor 21 toward the outdoor heat exchanger 31 or an indoor unit (not shown) is provided. For example, the flow switching unit 26 may include a four-way valve.

The flow conversion unit 26 includes a first connection pipe 27 connected to the outdoor heat exchanger 31, a second connection pipe 28 connected to the gas-liquid separator 22, and the indoor unit (not shown). It may be connected to the third connecting pipe 29 to be connected.

When the air conditioner performs a cooling operation, the refrigerant flows from the flow conversion unit 26 into the outdoor heat exchanger 31 through the first connection pipe 27 . On the other hand, when the air conditioner performs a heating operation, the refrigerant flows from the flow conversion unit 27 to the indoor heat exchanger side of the indoor unit (not shown) through the third connection pipe 29 .

The outdoor heat exchanger 31 exchanges heat with external air and refrigerant, and functions as a condenser when the air conditioner operates for cooling, and functions as an evaporator when the air conditioner operates for heating.

When the air conditioner performs a cooling operation, the refrigerant that has passed through the outdoor heat exchanger 31 passes through a main expansion valve 34 (electronic expansion valve) disposed at the outlet side of the outdoor heat exchanger 31 . During the cooling operation, the main expansion valve 31 is completely opened, so that the refrigerant pressure-reducing action is not performed.

The refrigerant that has passed through the expansion valve 31 flows to the indoor unit through the indoor unit connecting pipe 36 , and the refrigerant evaporated in the indoor heat exchanger (not shown) flows into the outdoor unit 1 through the indoor unit connecting pipe 36 . do.

The refrigerant introduced into the outdoor unit flows into the flow conversion unit 26 through the third connection pipe 29 , and flows out from the flow conversion unit 26 through the second connection pipe 28 .

The refrigerant that has passed through the flow conversion unit 26 flows to the gas-liquid separator 22 . The gas-liquid separator 22 is configured to separate the gaseous refrigerant before the refrigerant flows into the compressor 21 . The separated gaseous refrigerant may be introduced into the compressor 21 .

3 is an exploded view of a vibration reducing device in the configuration of an outdoor unit of an air conditioner according to an embodiment of the present invention, FIG. 4 is an enlarged view of part A of FIG. 1 , and FIG. 5 is a cross-sectional view of a part a-a' in FIG. am. In addition, FIG. 6 is an enlarged view of part B of FIG. 1 , and FIG. 7 is a cross-sectional view of part b-b' of FIG. 5 .

Referring to FIGS. 3 to 7 , the main body 400 is formed to surround the refrigerant pipe 24 , and the center of gravity can be varied to reduce vibration of the refrigerant pipe 24 . The body part 400 may include a body part 400 and a support part 420 .

The body portion 400 may be formed in a ring shape that can be fitted to the outside of the refrigerant pipe (24). In detail, the main body 400 is formed to have an inner diameter corresponding to the outer diameter of the refrigerant pipe 24, so that the inner diameter of the main body 400 and the outer diameter of the refrigerant pipe 24 are in contact with the The main body 400 may be fitted to the refrigerant pipe 24 .

In addition, the body 400 may have a space formed therein. In detail, when the body portion 400 has a ring shape, a flow passage space may be formed therein along the extending direction of the ring. That is, the main body 400 may have a round flow path formed therein.

The body part 400 may be formed of a metal material or rubber. In detail, in order to reduce vibration of the refrigerant pipe 24 by supplying additional mass to the refrigerant pipe 24, the main body 400 may be formed of a metal material or rubber having a heavier mass than a general plastic material. there is.

In more detail, the metal material may be formed of iron, aluminum, copper, or an alloy thereof. However, the type of such a metal material is only described as an example, and is not limited thereto as long as it is a metal material.

In addition, the rubber may be of the same material as that of the stator which is generally coupled to the refrigerant pipe 24 of the constant speed compressor 21 in the prior art.

A reduction part 412 may be filled in the inner space 411 of the body part 400 . In this case, the reduction portion 412 may be filled in a portion of the inner space 411 of the body portion 400 . This is because, when the reduction part 412 is completely filled in the internal space 411 of the body part 400, even if vibration of the refrigerant pipe 24 occurs, the center of gravity of the body part 400 does not change properly. because it doesn't Therefore, when the reducing part 412 is filled only in a part of the internal space 411 of the main body 400 , and the refrigerant pipe 24 vibrates later, the internal space 411 of the main body 400 . The center of gravity of the main body 400 may be changed while the fluid or the solid in the form of fine particles is moved. For example, the reduction part 412 may be filled to 70% or less of the internal space 411 of the body part 400 .

In addition, the reducing part 412 may be a liquid material or a solid material. In detail, the solid material may include a plurality of fine particles of a predetermined size or less. For example, the liquid material may include an aqueous electrolyte solution, and more specifically, the aqueous electrolyte solution may be brine.

In detail, when the body part 400 is formed of rubber, the reducing part 412 may be a liquid material, and when the body part 400 is formed of a metal material, the reducing part 412 is the solid material. It may be a shaped material.

In addition, the reduction part 412 may be a material capable of preventing corrosion of the body part 400 and the reduction part 412 in a state in which the internal space 411 of the body part 400 is filled.

In detail, when the body part 400 is formed of rubber, the liquid material is not only prevented from corrosion in the inner space 411 of the body part 400 , but also to prevent corrosion of the body part 400 . It may include an aqueous electrolyte solution, and in more detail, the aqueous electrolyte solution may be brine. This is to show the effect of reducing the manufacturing cost because the manufacturing cost of the brine is cheaper than the manufacturing cost of the aqueous solution mixed with chemicals for corrosion prevention. When general water is filled in the inner space 411 of the main body 400, there is a possibility that it will quickly corrode because it is stagnant in the inner space 411. In this case, the inner wall of the main body 400 is damaged or , because the water itself can corrode.

However, when the body part 400 is made of a metal material, when a liquid material such as water or an aqueous electrolyte solution is filled in the internal space 411 of the body part 400, the inner wall of the body part 400 is corroded later. Since there is a risk of becoming, the reducing part 412 may be a solid material. In this case, the solid material may include a plurality of particles having a predetermined size or less. For example, the solid material may include a material that does not self-corrode, such as metal powder or sand.

The support part 420 may be disposed on one side of the body part 400 to support the body part 400 so that the body part 400 does not move along the extension direction of the refrigerant pipe 24 . there is.

In detail, the support part 420 is disposed in a gap between the body part 400 and the refrigerant pipe 24, and fills the space between the body part 400 and the refrigerant pipe 24, and at the same time, the The main body 400 may be supported. In detail, one surface 421 of the support part 420 may be in contact with the outer peripheral surface of the refrigerant pipe 24 , and the other surface 422 of the support part 420 may be in contact with a portion of the outer surface of the body part 400 . . For example, when the main body portion 400 has a ring shape and the refrigerant pipe 24 has a pipe shape, a portion of the inner surface of the body portion 400 and a portion of the outer surface of the refrigerant pipe 24 are in contact with each other. , the main body 400 may be fitted into the refrigerant pipe 24 . That is, when the outer surface of the main body 400 is formed to be rounded with a set curvature, the outer surface of the support unit 420 extends according to the set curvature, thereby supporting the main body 400 .

For example, when the refrigerant pipe 24 is vertically formed and the main body 400 is inserted into the refrigerant pipe 24 , the space between the lower portion of the main body 400 and the refrigerant pipe 24 . The support part 420 may be disposed on the to support the body part 400 so that the body part 400 does not fall downward.

As another example, when the refrigerant pipe 24 is formed in a bent curved shape or a horizontal shape, when the body part 400 is fitted into a curved part or a horizontal shape of the refrigerant pipe 24, the body part 400 ), the support part 420 is disposed on each of one side and the other side, so that the body part 400 and the refrigerant pipe 24 can be fixed at both sides of the body part 400 .

In this case, the support part 420 may include a first support part 425 and a second support part 427 . The first support part 425 is disposed on one surface of the main body 400 and is sandwiched between one surface of the main body 400 and the refrigerant pipe 24 to support one surface of the main body 400 . can In addition, the second support part 427 is disposed on the other surface of the main body part 400, and is sandwiched between the other surface of the main body part 400 and the refrigerant pipe 24 to support the other surface of the main body part 400. can support That is, when the refrigerant pipe 24 has a bent shape, two supporting parts may be disposed on both surfaces of the main body 400 .

In detail, the support part 420 may have a ring shape in which an opening is formed in the center of a circular flat plate, and curved to narrow upward from the outside to the center part. In more detail, the support part 420 may include a body part 400 contact surface and a pipe contact surface.

The pipe contact surface is a surface in contact with the outer circumferential surface of the refrigerant pipe 24 , and may be an inner surface of an opening formed in the support part 420 . In addition, the inner diameter of the pipe contact surface may have the same size as the outer diameter of the pipe.

The contact surface of the body part 400 extends from the upper end of the opening in a shape that is bent outwardly downward to correspond to the contact surface of the body part 400, and comes into contact with a part of the body part 400 to contact the body part 400. can support the lower part of

Accordingly, the support part 420 is formed in a shape corresponding to the space between the body part 400 and the refrigerant pipe 24 , and the support part 420 is the body part 400 and the refrigerant pipe 24 . ) may serve to support the main body 400 when fitted. Through this, even when the refrigerant pipe 24 vibrates, it is possible to effectively reduce the vibration of the refrigerant pipe 24 by preventing the phenomenon that the main body 400 is shifted or deviated from the refrigerant pipe 24. there is an effect

In addition, the support part 420 may be formed of a material that is deformable and performs a cushioning action. For example, the support part 420 is formed to be elastic and deformable like rubber, and when it is inserted between the body part 400 and the refrigerant pipe 24, the body part 400 and the refrigerant pipe (24) It is possible to prevent damage caused by collisions. That is, since the support part 420 is formed of a deformable material, the support part 420 absorbs an impact formed between the body part 400 and the refrigerant pipe 24, thereby causing damage due to contact or friction with each other. has the effect of preventing

8 is a graph showing the resonance frequency of the main body part of the configuration of the outdoor unit of the air conditioner according to the embodiment of the present invention, and FIG. FIG. 10 is a view showing the kinetic force between the body part and the refrigerant pipe in the Y portion of FIG. 7 .

Hereinafter, with reference to FIGS. 8 to 10 , an operation in which the main body 400 reduces the vibration of the refrigerant pipe 24 according to an embodiment of the present invention will be described in detail.

When the compressor 21 is the inverter compressor 21 , as the rotation frequency supplied to the motor of the compressor 21 increases, the rotation speed of the motor may increase. In addition, as the rotation speed of the motor increases, the magnitude of vibration formed in the refrigerant pipe 24 may increase.

In this case, the main body 400 may be set to have a resonant frequency of a set size. Referring to FIG. 8 , the resonant frequency of the main body 400 varies depending on the capacity of the compressor 21 , and the setting of the resonant frequency is determined by the reduction unit 412 filled in the main body 400 . It can be set by changing the type or by varying the amount of the reduction unit 412 .

In addition, the magnitude of the resonance frequency set in the main body 400 may be set to be lower than the lowest frequency supplied to the compressor 21 . As an example, the frequency f0 of FIG. 8 is set to the resonance frequency magnitude of the main body 400, and will be described below based on this.

This is the vibration direction of the refrigerant pipe 24 when the refrigerant pipe 24 vibrates when a frequency lower than the resonant frequency set in the main body 400 is supplied to the motor of the compressor 21 . This is because, as the reducing part 412 in the main body 400 moves, a problem occurs in that the weight of the reducing part 412 is concentrated in the vibration direction. For example, when the frequency of the region X of FIG. 8 is supplied to the compressor 21, when the refrigerant pipe 24 vibrates in the F1 direction as shown in FIG. 9, the internal space 411 of the main body 400 ), as the reduction part 412 also moves in the F2 direction, the refrigerant pipe 24 vibrates by the kinetic force of the refrigerant pipe 24 vibrating in the F1 direction and the kinetic force of the reducing part 412 moving in the F2 direction. A problem arises when the size becomes larger. In order to solve this problem, the magnitude of the resonance frequency of the main body 400 may be set lower than the lowest frequency supplied to the compressor 21 .

In a state in which the main body 400 is connected to the refrigerant pipe 24 , a frequency greater than the resonance frequency of the main body 400 , for example, a frequency in the Y region of FIG. 8 , is applied to the compressor 21 . When supplied to the connected motor, the refrigerant pipe 24 vibrates by the pulsation of the refrigerant discharged while the motor rotates and the rotational vibration of the motor of the compressor 21 .

In this case, the reduction part 412 filled in the inner space 411 of the body part 400 moves in a direction opposite to the vibration direction of the refrigerant pipe 24, and the body part 400 moves in the direction opposite to the vibration direction of the refrigerant pipe 24. Repulsive force generated by the mass of the reduction part 412 may be transmitted to the refrigerant pipe 24 . For example, when the refrigerant pipe 24 vibrates in the F3 direction as shown in FIG. 10 , the reduction unit 412 of the main body 400 may move in the F4 direction, which is opposite to the F3 direction. Accordingly, the kinetic force that the refrigerant pipe 24 vibrates in the F3 direction may be offset by the kinetic force that the reduction unit 412 moves in the F4 direction.

Thereby, the kinetic force according to the vibration of the refrigerant pipe 24 and the repulsive force due to the movement of the reducing part 412 are combined with each other, and the overall kinetic force of the refrigerant pipe 24 is reduced, and this causes the refrigerant pipe ( 24) can be reduced.

In addition, when the value of the frequency supplied to the motor of the compressor 21 changes, the magnitude of vibration of the refrigerant pipe 24 may also change in proportion to the changed frequency value. In addition, the magnitude of the repulsive force according to the movement of the reducing part 412 of the main body 400 may also change in proportion to the magnitude of the vibration of the refrigerant pipe 24 . For example, when the value of the frequency supplied to the motor of the compressor 21 is low, since the magnitude of the vibration of the refrigerant pipe 24 is small, the reduction unit 412 of the main body 400 is located inside the The amount of movement in the space 411 is reduced, and accordingly, the repulsive force proportional to the amount of movement of the reduction unit 412 may also be reduced. Conversely, when the value of the frequency supplied to the motor of the compressor 21 is high, since the magnitude of the vibration of the refrigerant pipe 24 is large, the reduction unit 412 of the main body 400 is disposed in the internal space ( 411 ), the amount of movement may increase, and accordingly, a repulsive force proportional to the amount of movement of the reduction unit 412 may increase. Therefore, even if the value of the frequency supplied to the compressor 21 varies, the main body 400 has the effect of reducing the vibration of the refrigerant pipe 24 according to this.

As described above, the main body 400 according to the embodiment of the present invention has the refrigerant pipe in the case where the compressor 21 is a constant speed compressor to which a constant frequency is supplied, as well as in the case of an inverter compressor in which the amount of the supplied frequency is variable. There is an effect that can effectively reduce the vibration of (24).

Claims (16)

a compressor having a motor and compressing the refrigerant by the rotational force of the motor;
a refrigerant pipe provided at one side of the compressor and guiding the flow of the refrigerant to be sucked into the compressor or the flow of the refrigerant compressed in the compressor; and
and a vibration reducing device coupled to the refrigerant pipe to reduce vibration of the refrigerant pipe generated according to the operation of the compressor,
The vibration reduction device,
a body portion having an inner space;
a reduction unit provided to be movable in one direction in the inner space to offset vibration in the other direction of the refrigerant pipe; and
The outdoor unit of the air conditioner according to claim 1, wherein the movement of the reduction unit in one direction is made by an inertial force generated while the refrigerant pipe moves in the other direction.
delete The method of claim 1,
The body portion is formed of a metal member,
The reduction part is made of a solid material,
The outdoor unit of the air conditioner, characterized in that corrosion of the metal member or the reduction part is prevented.
4. The method of claim 3,
The solid material is an outdoor unit of the air conditioner, characterized in that it includes a plurality of particles.
The method of claim 1,
The body part is formed of a rubber member,
The reduction part is made of a liquid material,
The outdoor unit of the air conditioner, characterized in that corrosion of the rubber member or the reduction part is prevented.
6. The method of claim 5,
The liquid material is an outdoor unit of the air conditioner, characterized in that it contains an aqueous electrolyte solution.
7. The method of claim 6,
The aqueous electrolyte solution is an outdoor unit of an air conditioner, characterized in that it contains salt water.
The method of claim 1,
The outdoor unit of the air conditioner, characterized in that the reducing part is disposed in a portion of the total volume of the internal space.
9. The method of claim 8,
The outdoor unit of the air conditioner, characterized in that the volume of the part is 70% or less of the inner space.
The method of claim 1,
The outdoor unit of the air conditioner according to claim 1, wherein the main body has a ring shape surrounding an outer circumferential surface of the refrigerant pipe.
11. The method of claim 10,
The vibration reduction device,
The outdoor unit of the air conditioner further includes a support part disposed in a gap between the body part and the refrigerant pipe to fix the body part to the refrigerant pipe.
12. The method of claim 11,
The support part,
a first support part disposed on one surface of the body part to support the body part; and
The outdoor unit of the air conditioner including a second support part disposed on the other surface of the main body part to support the main body part.
12. The method of claim 11,
The support part has a ring shape, and an inner surface thereof is in contact with an outer circumferential surface of the refrigerant pipe, and an outer surface thereof is in contact with a portion of an outer surface of the main body.
14. The method of claim 13,
The outer surface of the main body is formed to be rounded with a set curvature,
The outer surface of the support is extended according to the set curvature,
An outdoor unit of an air conditioner, characterized in that it supports the main body.
12. The method of claim 11,
The outdoor unit of the air conditioner, characterized in that the support part is formed of a material that performs a cushioning action.
16. The method of claim 15,
The outdoor unit of the air conditioner, characterized in that the support includes a rubber member.

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