KR20220107707A - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator capable of reducing vibration that may occur in a refrigerant pipe by changing the shape of the refrigerant pipe. According to an embodiment of the present invention, a refrigerator comprises: a cabinet forming a low-temperature storage space and a machine room, respectively; a compressor disposed in the machine room; a condenser disposed in the machine room; and a refrigerant pipe connecting the compressor and the condenser. At least a portion of the refrigerant pipe may be bent upward to reduce vibration.

Description

Refrigerator {Refrigerator}

The present invention relates to a refrigerator.

BACKGROUND ART In general, a refrigerator is a home appliance that can store food at a low temperature in an internal storage space that is shielded by a door. To this end, the refrigerator is configured to store the stored food in an optimal state by cooling the inside of the storage space using cold air generated through heat exchange with the refrigerant circulating in the refrigeration cycle.

In the structure of a general refrigerator, a machine room in which components such as a compressor and a condenser for driving a refrigeration cycle are disposed may be provided separately from the storage space.

As the compressor used in the refrigerator, a linear compressor having a simple structure and capable of improving compression efficiency without mechanical loss due to motion conversion by directly connecting a piston to a driving motor that reciprocates linearly may be used.

In general, a linear compressor is configured to suck, compress, and then discharge refrigerant while a piston reciprocates and linearly moves inside a cylinder by a linear motor in a sealed shell.

The linear motor is configured such that a permanent magnet is positioned between an inner stator and an outer stator, and the permanent magnet is driven to reciprocate linearly by a mutual electromagnetic force between the permanent magnet and the inner (or outer) stator. And, as the permanent magnet is driven in a state connected to the piston, the piston sucks and compresses the refrigerant while linearly reciprocating inside the cylinder, and then discharges it.

However, when a linear compressor driven by linear reciprocating motion as described above is used, vibration according to the movement of the driving unit may be transmitted to the refrigerant pipe connected to the compressor.

In order to solve such a problem, in the preceding document, Korean Patent Laid-Open Publication No. 10-2003-0034587 (published on May 09, 2003), anti-vibration rubber is provided in the refrigerant pipe between the compressor and the condenser or the refrigerant pipe at the rear end of the condenser. A refrigerator to be attached is disclosed.

However, in the case of using a vibration-proof rubber to prevent the flow of noise and refrigerant piping due to vibration of the refrigerant piping as in the prior literature, the mass of the vibration-proof rubber is fixed and application to a refrigeration cycle having a compressor using a variable frequency is difficult. There were difficult drawbacks.

And, when a vibration-proof rubber is used as in the prior literature, during pipe welding or product transportation, removal or omission of the vibration-proof rubber may occur, and in this case, there is a problem in that the vibration reduction function is lost.

An object of the present invention is to solve the above problems, and an embodiment of the present invention is to provide a refrigerator capable of reducing vibrations that may be generated in the refrigerant pipe by changing the shape of the refrigerant pipe without a separate member. do it with

Another object of the present invention is to provide a refrigerator capable of avoiding resonance of the refrigerant pipe by forming at least a portion of the refrigerant pipe to be bent upward so that the refrigerant flows vertically to perform a buffering action of vibration transmission.

Another object of the present invention is to provide a refrigerator in which the refrigerant pipe is bent multiple times in the space inside the condenser so that water stored in the water collecting space can be evaporated more effectively.

A refrigerator according to an embodiment of the present invention includes a cabinet forming a low-temperature storage space and a machine room, respectively; a compressor disposed in the machine room; a condenser disposed in the machine room; and a refrigerant pipe connecting the compressor and the condenser, wherein at least a portion of the refrigerant pipe is bent upward to reduce vibration.

At this time, the refrigerant pipe may include: a first extension bent upwardly; a second extension spaced apart from the first extension and bent upward; and a third extension connecting the first extension and the second extension to each other.

In an embodiment, the first extension part, the second extension part, and the third extension part may be bent roundly.

The refrigerant pipe may include: a first pipe connected to the compressor and extending toward the condenser; a second pipe extending from an end of the first pipe and positioned in an inner space formed by bending the condenser; and a third pipe extending from the second pipe and connected to the condenser, wherein the first extension part, the second extension part, and the third extension part may be formed in the first pipe.

In an embodiment, the compressor may be provided as a linear compressor driven by linear reciprocating motion.

The compressor may include: a suction pipe through which refrigerant is sucked into the compressor; a discharge pipe through which the compressed refrigerator is discharged from the compressor; and a process pipe for replenishing the refrigerant to the compressor, wherein the first pipe may be connected to the discharge pipe.

The condenser forms the inner space inside, and the refrigerator is formed in a bent shape along the front, rear, and side surfaces of the machine room.

In one embodiment, the condenser, the first header extending in the vertical direction; a second header spaced apart from the first header and extending in a vertical direction; a tube connecting the first header and the second header; and a heat exchange fin connecting the tubes disposed up and down, wherein the third pipe may be connected to the first header.

The first header may include: an input connection for supplying a refrigerant to the condenser; and an output connection part spaced apart from the input connection part and discharging the refrigerant from the condenser side, and the third pipe may be connected to the input connection part.

It is mounted in the machine room and further includes a base pan on which the condenser is mounted, a water collecting space is formed inside the base pan, and the second pipe may be repeatedly bent multiple times inside the water collecting space. .

The third pipe may be bent upward from an end of the second pipe to extend along an inner surface of the condenser.

According to an embodiment of the present invention, it is possible to provide a refrigerator capable of reducing vibration that may be generated in the refrigerant pipe by changing the shape of the refrigerant pipe without a separate member.

In addition, it is possible to provide a refrigerator capable of avoiding resonance of the refrigerant pipe by forming at least a portion of the refrigerant pipe to be bent upward so that the refrigerant flows vertically to perform a buffering action of vibration transmission.

In addition, since the refrigerant pipe is bent multiple times in the space inside the condenser, it is possible to provide a refrigerator in which water stored in the water collecting space can be evaporated more effectively.

1 is a perspective view showing an open state of a machine room at the rear of a refrigerator according to an embodiment of the present invention.
2 is a perspective view showing the internal structure of the machine room.
3 is a plan view showing an air flow state of the machine room.
4 is a perspective view of the condenser according to an embodiment of the present invention.
5 is a perspective view illustrating a configuration of a compressor according to an embodiment of the present invention.
6 is a perspective view illustrating a refrigerant pipe according to an embodiment of the present invention.
7 is a view showing various aspects of adjusting the longest distance in the vertical direction of the third extension.
8 is a view illustrating resonance avoidance by adjusting the longest distance in the vertical direction of the third extension.

Hereinafter, specific embodiments of the present invention will be described in detail with drawings. However, the present invention cannot be said to be limited to the embodiments in which the spirit of the present invention is presented, and other inventions that are degenerate by addition, changes, deletions, etc. of other elements or other embodiments included within the scope of the present invention are easy can suggest

1 is a perspective view showing an open state of the machine room at the rear side of the refrigerator according to an embodiment of the present invention, FIG. 2 is a perspective view showing the internal structure of the machine room, and FIG. 3 is a plan view showing the air flow state of the machine room.

Hereinafter, for convenience of understanding, a direction toward the door 20, which will be described later, is defined as a front, and a direction toward the machine room cover 12 that shields the machine room opening 101a is defined as rear.

1 to 3 , a refrigerator 1 according to an embodiment of the present invention may include a cabinet 10 forming a storage space and a door 20 opening and closing the storage space.

The storage space may be divided up and down or left and right, and may consist of a plurality of spaces, and may be cooled to different temperatures and used as a refrigerating chamber or a freezing chamber.

In addition, the door 20 may be configured to open and close a plurality of storage spaces, respectively. In addition, the door 20 may be rotatably or slidably mounted on the cabinet 10 to be able to open and close each storage space independently. In this embodiment, the storage space is divided up and down, and the door 20 is also composed of the upper door 21 and the lower door 22 will be described as an example.

The cabinet 10 may include an outer case 101 forming an exterior and an inner case forming the storage space inside the outer case 101 . In addition, an insulating material may be filled between the outer case 101 and the inner case to insulate the storage space.

Meanwhile, the refrigerator 1 according to the spirit of the present invention may include a compressor 30 , a condenser 50 , and an evaporator (not shown) that form one refrigeration cycle.

The compressor 30 and the condenser 50 may be disposed in a machine room 11 formed at a lower end of the cabinet 10 .

In detail, the machine room 11 may be formed at a lower rear surface of the cabinet 10 . The machine room 11 may form a space in which a plurality of electrical components including components constituting a refrigeration cycle for cooling the storage space are disposed, and may be partitioned from the storage space to form an independent space.

And, the machine room 11 may communicate with the external space so that the components inside the machine room 11 are cooled or heat exchanged.

In detail, the bottom surface of the machine room 11 may be formed by the bottom plate 111 . In addition, the bottom plate 111 has a compressor 30 that compresses and supplies a high-temperature and high-pressure refrigerant, a condenser 50 that radiates heat from the high-temperature and high-pressure refrigerant supplied from the compressor 30 , and the machine room 11 . A blower fan unit 60 for forcibly flowing air inside may be provided.

The compressor 30 , the condenser 50 , and the blower fan unit 60 may be directly or indirectly mounted on the bottom plate 111 .

The inside of the machine room 11 may be divided into left and right with respect to the blower fan unit 60, the condenser 50 may be disposed on the right side based on FIG. 1, and the compressor 30 may be disposed on the left side. have. The region on the right side where the condenser 50 is disposed may be referred to as a suction unit 11a through which outside air is sucked, and the area on the left side at which the compressor 30 is disposed may be referred to as a discharge unit 11b through which outside air is discharged. have.

A machine room cover 12 may be mounted in the machine room opening 101a formed on the rear surface of the machine room 11 . The machine room cover 12 may form the exterior of the rear surface of the machine room 11 and a part of the rear surface of the refrigerator 1 , and shield the machine room opening 101a so that the components inside the machine room 11 are external. exposure can be prevented.

In one embodiment, the height of the opening 101a of the machine room may have a height corresponding to the height of the upper end of the condenser 50 . A lower surface of the machine room 11 may be formed by a bottom plate 111 , and an upper surface including the front surface of the machine room 11 may be formed by a top plate 112 .

In addition, the height of the opening of the machine room 11 may be defined by a distance between the rear end of the bottom plate 111 and the rear end of the top plate 112 , and may be formed equal to or substantially equal to the height of the condenser 50 . can

That is, when the machine room cover 12 is opened, the machine room opening 101a may be exposed to the outside.

On the other hand, the machine room cover 12 may have a suction port 121 through which outside air is sucked and a discharge port 122 through which the air inside the machine room 11 is discharged to the outside, respectively.

The suction port 121 may be formed at a position corresponding to the condenser 50 , and the discharge port 122 may be formed at a position corresponding to the compressor 30 . The suction port 121 and the discharge port 122 may be formed in a grill shape made of a plurality of holes, and may be formed to be inclined or rounded so that the air suctioned and discharged can have a directionality.

In addition, a cabinet suction port 101b and a cabinet discharge port 101c may be formed on both side surfaces of the cabinet 10 corresponding to both side surfaces of the machine room 11 .

The cabinet suction port 101b is a passage through which outside air is sucked, and may be formed to communicate with the suction unit 11a, that is, an area in which the condenser 50 is disposed. The cabinet discharge port 101c is a passage through which the air inside the machine room 11 is discharged to the outside, and may be formed to communicate with the discharge unit 11b, that is, an area in which the compressor 30 is disposed.

In addition, a plate inlet 111a and a plate outlet 111b may be formed in the bottom plate 111 forming the bottom surface of the machine room 11 . The plate suction port 111a may be formed in the area of the suction unit 11a and may be horizontally and long disposed at the front end of the bottom plate 111 .

In addition, the plate discharge port 111b may be formed in the area of the discharge unit 11b and may be horizontally and elongated at the front end of the bottom plate 111 .

As shown in FIG. 3 , the inside of the machine room 11 is entirely provided with suction parts 11a and discharge parts 11b on the left and right sides by the blower fan unit 60 , and the suction and discharge of air are three-dimensional. can be made with

In detail, external air is forcibly sucked through the suction port 121 at the front, the plate suction port 111a at the rear, and the cabinet suction port 101b at the side with respect to the condenser 50 to the inside of the suction unit 11a. It flows in, and allows it to pass through the front and rear side surfaces of the condenser 50 formed along the inner circumference of the suction unit 11a.

That is, external air passes evenly over the entire surface based on the condenser 50 , so that effective heat dissipation of the condenser 50 can be achieved.

And, the air inside the machine room 11 is supplied to the compressor 30 through the front discharge port 122, the rear plate discharge port 111b, and the side cabinet discharge port 101c with respect to the compressor 30. After cooling, it can be discharged to the outside. That is, the air discharged by the blower fan unit 60 may cool the compressor 30 while passing through the side compressor 30 and may be discharged to the front, rear, and side of the discharge unit 11b.

In this way, as external air is three-dimensionally supplied to the suction unit 11a by the operation of the blower fan unit 60, the condenser 50 is radiated, and after three-dimensional cooling of the compressor 30, the discharge unit ( 11b), the air can be discharged to the outside.

Meanwhile, a water valve 71 for supplying water to an ice maker or a dispenser provided in the refrigerator 1 may be further provided inside the machine room 11 . An expansion means 74 (at least one of an expansion valve, an electromagnetic expansion valve, and a capillary tube) for depressurizing the refrigerant discharged from the condenser 50 for evaporation may be further provided.

Meanwhile, a base fan 40 may be mounted on the bottom plate 111 . The base fan 40 may be located in an area of the plate suction port 111a in which the condenser 50 is mounted among left and right sides. For example, the condenser 50 , the blowing fan unit 60 , and the expansion means 74 may be mounted on the upper surface of the base fan 40 .

In one embodiment, an evaporator may be provided vertically above the base fan 40 . In addition, the base pan 40 may be provided with drain hoses 72 and 73 for discharging the evaporator or defrost water generated in a space in which the evaporator is disposed to the base pan 40 .

A plurality of drain hoses 72 and 73 may be provided according to the number of evaporators, and may extend from a position corresponding to the position of the evaporator to the upper surface of the base pan 40 . The base pan 40 may be referred to as a drain pan because the defrost water discharged by the drain hoses 72 and 73 is stored.

Hereinafter, the structure of the condenser 50 will be described in more detail with reference to the drawings.

4 is a perspective view of the condenser according to an embodiment of the present invention.

Referring to FIG. 4 , the condenser 50 may be bent in a shape disposed along the front, rear, and side surfaces of the machine room 11 . In detail, the condenser 50 may be bent in a shape disposed along the front, rear, and side surfaces of the suction unit 11a.

The condenser 50 includes a first straight line portion 501 extending horizontally with the machine room cover 12 at a position facing the rear surface of the machine room 11 , that is, the machine room cover 12 , and the first straight line A second straight part 502 arranged side by side with the first straight part 501 at a position spaced apart from the part 501, and connecting the ends of the first straight part 501 and the second straight part 502 and a bending part 503 formed at a position facing the side of the machine room 11 .

In addition, the condenser 50 is formed to extend from the base fan 40 to the upper end of the machine room 11 in the vertical direction. Accordingly, all of the air sucked in from each direction into the suction part 11a may be configured such that it passes through the condenser 50 and faces the blower fan unit 60 .

In detail, the condenser 50 includes a pair of first and second headers 53 and 55, and a tube 51 connecting between the first and second headers 53 and 55, and up and down. It may be configured to include a heat exchange fin 52 connecting between the disposed tubes 51 . Such a configuration is generally referred to as a micro channel condenser, has a relatively compact size, and may have excellent heat exchange performance.

Meanwhile, the first header 53 and the second header 55 may be spaced apart from each other in the front-rear direction, and may extend vertically at the same height. In detail, the second header 55 may be spaced apart from the front of the first header 53 .

The first header 53 and the second header 55 may be respectively connected to both ends of the plurality of tubes 51 , and a partition wall is formed therein for the refrigerant flowing along the connected plurality of tubes 51 . It may be configured to determine a flow path.

An input connection part 531 for supplying a refrigerant to the condenser 50 side and an output connection part 532 for discharging the refrigerant from the condenser 50 side may be vertically disposed in the first header 53 . A refrigerant pipe 450 connected to the compressor 30 may be connected to the input connection part 531 , and an output pipe 56 connected to the expansion means 74 may be connected to the output connection part 532 . .

The high-temperature and high-pressure refrigerant introduced through the input connection part 531 may flow through the plurality of tubes 51 through the first header 53 to the second header 55 . In addition, the refrigerant introduced into the second header 55 may flow to the first header 53 through a plurality of other tubes 51 after being redirected by the second header 55 , and finally is directed to the expansion means 74 through the output connection part 532 and the output pipe 56 .

The tube 51 may be formed in a structure in which one tube 51 is continuously arranged in a horizontal direction with a plurality of channels or flow paths, and both ends connect the first header 53 and the second header 55 . can be formed to In addition, the tube 51 has the same structure and shape, and may be continuously arranged at regular intervals in the vertical direction along the first header 53 and the second header 55 .

In addition, the heat exchange fins 52 may be provided in a space between the plurality of tubes 51 . The heat exchange fins 52 may be formed along a space between the tubes 51 while being continuously bent in a zigzag shape. Fin openings 521 are formed between the bent portion of the heat exchange fin 52 and the tubes 51 by the mounting of the heat exchange fin 52 . In addition, the contact area of air passing through the fin openings 521 formed by the heat exchange fins 52 may be increased, and heat exchange efficiency with the refrigerant inside the tube 51 may be increased.

Hereinafter, the configuration of the compressor according to the embodiment of the present invention will be described in more detail with reference to the drawings.

5 is a perspective view illustrating a configuration of a compressor according to an embodiment of the present invention.

Referring to FIG. 5 , the compressor 30 according to an embodiment of the present invention may be provided as a linear compressor. In detail, the compressor 30 provided as a linear compressor may be configured to suck, compress, and then discharge refrigerant while a piston reciprocates and linearly moves in a cylinder by a linear motor in a sealed shell.

The linear motor is configured such that a permanent magnet is positioned between an inner stator and an outer stator, and the permanent magnet is driven to reciprocate linearly by a mutual electromagnetic force between the permanent magnet and the inner (or outer) stator. And, as the permanent magnet is driven in a state connected to the piston, the piston may reciprocate and linearly move within the cylinder to suck in, compress, and then discharge the refrigerant.

In detail, the compressor 30 includes a shell 301 and a shell cover 302 coupled to both sides of the shell 301 .

A leg 310 may be coupled to a lower side of the shell 301 . The leg 310 may be coupled to the bottom surface of the machine room 11 . The leg 310 may be coupled to the bottom plate 111 . That is, the compressor 30 may be fixed to the machine room 11 through the legs 310 .

The shell 301 has a substantially cylindrical shape, and may form an arrangement lying in a transverse direction or an arrangement lying in an axial direction. Referring to FIG. 4 , the shell 301 extends long in the horizontal direction and may have a rather low height in the radial direction. That is, since the compressor 30 may have a low height, there is an advantage that the height of the machine room 11 can be reduced when the compressor 30 is installed on the base 40 .

A terminal 308 may be installed on the outer surface of the shell 301 . The terminal 308 is understood as a configuration for transmitting external power to the motor assembly of the linear compressor.

A bracket 309 may be installed on the outside of the terminal 308 . The bracket 309 may be provided to surround the terminal 308 . The bracket 309 may function to protect the terminal 308 from external impact.

Both sides of the shell 301 are configured to be opened. The shell cover 302 may be coupled to both sides of the opened shell 301 . The shell cover 302 may be disposed to face each other on both sides of the shell 301 . In detail, the inner space of the shell 301 may be sealed by the shell cover 302 .

The compressor 30 further includes a plurality of pipes 304 , 305 , 306 provided in the shell 301 or the shell cover 302 to suck, discharge, or inject a refrigerant.

In the plurality of pipes (304, 305, 306), a suction pipe (304) for sucking the refrigerant into the inside of the compressor (30), a discharge pipe (305) for discharging the compressed refrigerant from the compressor (30), and a refrigerant A process pipe 306 for replenishing the compressor 30 is included.

For example, the suction pipe 304 may be coupled to the shell cover 302 . The refrigerant may be sucked into the compressor 30 along the axial direction through the suction pipe 304 .

The discharge pipe 305 may be coupled to an outer circumferential surface of the shell 301 . The refrigerant sucked through the suction pipe 304 may be compressed while flowing in the axial direction. Also, the compressed refrigerant may be discharged through the discharge pipe 305 .

The process pipe 306 may be coupled to an outer circumferential surface of the shell 301 . A refrigerant may be injected into the compressor 30 through the process pipe 306 .

In one embodiment, the process pipe 306 may be coupled to the shell 301 at a different height from the discharge pipe 305 to avoid interference with the discharge pipe 305 . The height is understood as a vertical (or radial) distance from the leg 310 . The discharge pipe 305 and the process pipe 306 are coupled to the outer circumferential surface of the shell 301 at different heights, so that the operator can work conveniently.

Meanwhile, a refrigerant pipe 450 connecting the compressor 30 and the condenser 50 may be connected to the discharge pipe 305 .

Hereinafter, the refrigerant pipe will be described in more detail with reference to the drawings.

6 is a perspective view illustrating a refrigerant pipe according to an embodiment of the present invention.

Referring to FIG. 6 , the refrigerant pipe 450 according to the embodiment of the present invention may be formed by bending a plurality of times. In addition, at least a portion of the refrigerant pipe 450 may be disposed in an inner space formed by bending the condenser 50 .

In detail, the refrigerant pipe 450 is connected to the compressor 30 and includes a first pipe 451 extending toward the bottom of the inner space, and at an end of the first pipe 451 , the base fan A second pipe 452 extending inside the water collecting space 433a formed in 40, and a third pipe 453 extending from an end of the second pipe 452 and connected to the condenser 50 may include

A third pipe 453 extending from an end of the second pipe 452 and connected to the first header 53 may be included.

The first pipe 451 may be connected to the compressor 30 and extend toward the condenser 50 . In detail, the first pipe 451 may be connected to the compressor 30 and extend to the bottom of the inner space. The first pipe 451 may be connected to an outlet of the compressor 30 . In detail, the first pipe 451 may be connected to the discharge pipe 305 .

The second pipe 452 extends from an end of the first pipe 451 . The second pipe 452 extends from an end of the first pipe 451 and is located inside the water collecting space 433a. In detail, the second pipe 452 may be located inside the water collecting space 433a and may be located in an inner space formed by bending the condenser 50 .

Water stored in the water collecting space 433a may be evaporated by the high-temperature refrigerant passing through the second pipe 452 .

The second pipe 452 may be repeatedly bent multiple times inside the water collecting space 433a to increase a contact area with water stored in the water collecting space 433a. Accordingly, the water stored in the water collecting space 433a may be evaporated more effectively.

In an embodiment, a pipe supporter 75 (refer to FIG. 3 ) supporting the second pipe 452 may be provided in the water collecting space 433a. Accordingly, the second pipe 452 may maintain a set position so that water inside the water collecting space 433a is effectively evaporated.

In addition, the third pipe 453 may extend upward from the end of the second pipe 452 and be bent along the inner surface of the condenser 50 .

In addition, an end of the third pipe 453 may be connected to the condenser 50 . In detail, an end of the third pipe 453 may be connected to the first header 53 . In more detail, an end of the third pipe 453 may be connected to the input connection part 531 .

The third pipe 453 is bent along the inner surface of the condenser 50 in the process of extending toward the first header 53, so that when air is forced to flow by the operation of the blower fan unit 60, the It is possible to prevent the refrigerant pipe 450 from flowing.

In addition, the third pipe 453 may be disposed along the inner surface of the condenser 50 so that additional cooling may be performed by the air passing through the condenser 50 .

On the other hand, when the compressor 30 is provided as a linear compressor as in the embodiment of the present invention, vibration according to the reciprocating linear motion of the compressor may be transmitted to the refrigerant pipe 450 connected to the compressor 30 . .

When the vibration according to the reciprocating linear motion of the compressor is transmitted to the refrigerant pipe 450 , the refrigerant pipe 450 flows and the vibration is transmitted to the condenser 50 . In addition, when the refrigerant pipe 450 flows, there is a problem in that noise is generated.

In order to solve this problem, at least a part of the refrigerant pipe 450 may be bent upward to reduce vibration.

The refrigerant pipe 450, a first extension portion 450a bent upward, is spaced apart from the first extension portion 450a, a second extension portion 450b bent upward, and the first It may include a third extension 450c connecting the extension 450a and the second extension 450b to each other.

The first extension part 450a , the second extension part 450b , and the third extension part 450c may be formed in the first pipe 451 .

In detail, the first extension part 450a may be bent upward.

The first extension portion 450a may be formed in the first pipe 451 and may extend upward by a predetermined length. That is, the first extension part 450a may be formed in the first pipe 451 , and may extend a predetermined length vertically in the axial direction of the first pipe 451 .

In addition, the second extension portion 450b may be spaced apart from the first extension portion 450a and bent upward. That is, the first extension portion 450a and the second extension portion 450b may be disposed to be spaced apart from each other by a predetermined length in the horizontal direction. In other words, the first extension portion 450a and the second extension portion 450b may be disposed to be spaced apart from each other by a predetermined length in the axial direction of the first pipe 451 .

In an embodiment, the first extension part 450a may be disposed in front of the second extension part 450b based on the refrigerant flow direction.

The second extension portion 450b may be formed in the first pipe 451 and may extend upward a predetermined length. The second extension part 450b may be formed in the first pipe 451 and may extend a predetermined length vertically in the axial direction of the first pipe 451 .

In an embodiment, the first extension part 450a and the second extension part 450b may extend a predetermined length vertically in the axial direction of the first pipe 451 . In this case, the first extension part 450a and the second extension part 450b may extend the same length in the axial direction of the first pipe 451 .

The third extension 450c may connect the first extension 450a and the second extension 450b. The first extension part 450a, the second extension part 450b, and the third extension part 450c may be formed in the first pipe 451 and may be integrally formed.

The first extension part 450a and the second extension part 450b extend the same length in the vertical direction of the axial direction of the first pipe 451 , and the third extension part 450c is the first extension part 450c. Since the extension part 450a and the second extension part 450b are connected, the third extension part 450c may be located above the first pipe 451 .

The resonance of the refrigerant pipe 450 may be buffered by adjusting the separation distance of the third extension part 450c upward from the first pipe 451 . Alternatively, the resonance of the refrigerant pipe 450 may be buffered by adjusting the horizontal separation distance between the first extension part 450a and the second extension part 450b.

The first extension 450a, the second extension 450b, and the third extension 450c may be rounded.

Describe the refrigerant flow direction. The refrigerant may be compressed at high temperature and high pressure by the compressor 30 . The refrigerant compressed by the compressor 30 at high temperature and high pressure may be discharged to the refrigerant pipe 450 through the discharge pipe 305 of the compressor 30 .

In detail, the refrigerant flows to the first pipe 451 connected to the discharge pipe 305 through the discharge pipe 305 of the compressor 30 .

The refrigerant flowing through the first pipe 451 arrives at the first extension 450a disposed in front of the second extension 450b based on the refrigerant flow direction. At this time, since the first extension portion 450a is formed to extend a predetermined length vertically in the axial direction of the first pipe 451 , the refrigerant flows upward along the first extension portion 450a.

The refrigerant flows upward along the first extension part 450a, and the speed is slowed. Accordingly, there is an effect that the resonance of the refrigerant pipe 450 is buffered.

In addition, the refrigerant flowing to the first extension part 450a flows to the third extension part 450c extending from the first extension part 450a in a round manner.

The refrigerant flowing to the third extension 450c flows along the third extension 450c to the second extension 450b, and along the second extension 450b, It flows back to the first pipe 451 .

Then, it flows to the second pipe 452 extending from the first pipe 451 . Since the second pipe 452 is repeatedly bent multiple times inside the water collecting space 433a, the refrigerant flows through the second pipe 452 and is stored in the water collecting space 433a. Water can be evaporated more effectively.

In addition, the refrigerant flows to the third pipe 453 extending from the second pipe 452 and flows to the first header 53 connected to the third pipe 453 . In detail, the refrigerant flows to the first header 53 through the input connection part 531 connected to the third pipe 453 .

In this way, the compressor 30 and the condenser 50 are connected through the refrigerant pipe 450 so that the refrigerant flows. At this time, since at least a portion of the refrigerant pipe 450 is bent upward, vibration that may be generated in the refrigerant pipe 450 can be reduced without a separate member. In detail, through such a structure, the vibration frequency transmitted from the compressor 30 can be buffered, thereby preventing noise.

Hereinafter, the resonance of the refrigerant pipe 450 is buffered by adjusting the longest vertical distance H of the third extension part 450c from the first pipe 451 to be described in more detail.

7 is a view showing a state in which the longest distance in the vertical direction of the third extension is adjusted.

8 is a view illustrating resonance avoidance by adjusting the longest distance in the vertical direction of the third extension.

7 and 8, in the case of the prior art, it shows the appearance of the refrigerant pipe 460 to which the vibration reduction structure is not applied, according to the embodiment of the present invention, and in the case of the first embodiment, the first pipe It shows the appearance of the refrigerant pipe 470 when the longest vertical distance H of the third extension part 450c from 451 is 15 mm, and in the second embodiment, from the first pipe 451 It shows the appearance of the refrigerant pipe 480 when the longest vertical distance H of the third extension part 450c is 40 mm, and in the case of the third embodiment, the third extension from the first pipe 451 It shows the appearance of the refrigerant pipe 490 when the longest vertical distance H of the portion 450c is 60 mm.

In the case of the first to third embodiments, the horizontal distance between the first extension part 450a and the second extension part 450b was set to 30 mm in the same way.

And, referring to FIG. 8 , in the case of the prior art, Examples 1, 2, and 3, resonance generated in a specific frequency range can be confirmed.

In detail, the operating frequency of the compressor 30 may be set to 94 Hz. When the multiple of the operating frequency of the compressor 30 and the natural frequency of the refrigerant pipe 450 match, resonance may be strongly generated.

In more detail, when the frequency in the vicinity of 94HZ (1X), 188HZ (2X) and 282 (3X), which is a multiple of the operating frequency of the compressor 30, matches the natural frequency of the refrigerant pipe 450, resonance is strongly generated. can be

Accordingly, in order to buffer the resonance of the refrigerant pipes 460, 470, 480, and 490, frequencies in the vicinity of 94HZ (1X), 188HZ (2X) and 282 (3X), which are multiples of the operating frequency of the compressor 30, should be avoided. .

Looking at the experimental results, in the vicinity of the 94HZ (1X) frequency, which is the operating frequency of the compressor 30, it was confirmed that the difference in the resonance avoidance effect was insignificant with respect to the cases of the prior art, Examples 1, 2 and 3 became

In the vicinity of a frequency of 188HZ (2X), which is a multiple of the operating frequency of the compressor 30, it was confirmed that the resonance avoidance effect was greatest in the case of the refrigerant pipe 470 of the first embodiment. That is, in the vicinity of the 188HZ (2X) frequency, the longest vertical distance H of the third extension 450c from the first pipe 451 is 15 mm, and the first extension 450a and the second In order to avoid resonance, it is preferable that the horizontal direction separation distance of the extension part 450b is 30 mm.

And, in the vicinity of the frequency of 282 (3X), which is a multiple of the operating frequency of the compressor 30, it was confirmed that the resonance avoidance effect was greatest in the case of the refrigerant pipe 480 of the second embodiment. That is, in the vicinity of the 282 (3X) frequency, the longest vertical distance H of the third extension 450c from the first pipe 451 is 40 mm, and the first extension 450a and the second In order to avoid resonance, it is preferable that the horizontal direction separation distance of the extension part 450b is 30 mm.

In this way, the resonance of the refrigerant pipe 450 may be buffered by adjusting the longest vertical distance H of the third extension part 450c from the first pipe 451 .

1: refrigerator
10: cabinet
11: machine room
12: machine room cover
30: compressor
40: bass fan
50: condenser
450: refrigerant pipe

Claims (11)

a cabinet forming a low-temperature storage space and a machine room, respectively;
a compressor disposed in the machine room;
a condenser disposed in the machine room; and
and a refrigerant pipe connecting the compressor and the condenser,
The refrigerant pipe is formed by bending at least a part upward to reduce vibration. The method of claim 1,
The refrigerant pipe is
a first extension portion bent upward;
a second extension spaced apart from the first extension and bent upward; and
and a third extension connecting the first extension and the second extension to each other. 3. The method of claim 2,
The first extension part, the second extension part, and the third extension part are bent roundly. 4. The method of claim 3,
The refrigerant pipe is
a first pipe connected to the compressor and extending toward the condenser;
a second pipe extending from an end of the first pipe and positioned in an inner space formed by bending the condenser; and
and a third pipe extending from the second pipe and connected to the condenser,
The first extension part, the second extension part, and the third extension part are formed in the first pipe. 5. The method of claim 4,
The compressor is a refrigerator provided with a linear compressor driven by linear reciprocating motion. 6. The method of claim 5,
The compressor is
a suction pipe for allowing refrigerant to be sucked into the compressor;
a discharge pipe through which the compressed refrigerator is discharged from the compressor; and
a process pipe for replenishing refrigerant to the compressor;
The first pipe may be connected to the discharge pipe. 7. The method of claim 6,
The condenser is
The refrigerator is formed in a bent shape along the front, rear, and side surfaces of the machine room, forming the inner space on the inside. 8. The method of claim 7,
The condenser is
a first header extending in a vertical direction;
a second header spaced apart from the first header and extending in a vertical direction;
a tube connecting the first header and the second header; and
It includes a heat exchange fin connecting between the tubes disposed up and down,
The third pipe is connected to the first header. 9. The method of claim 8,
The first header is
an input connection for supplying a refrigerant to the condenser; and
It is spaced apart from the input connection and includes an output connection for discharging the refrigerant from the condenser side,
The third pipe is connected to the input connection part. 10. The method of claim 9,
It is mounted in the machine room, further comprising a base fan on which the condenser is mounted,
A water collecting space is formed inside the base pan,
The second pipe is repeatedly bent a plurality of times inside the water collecting space. 11. The method of claim 10,
The third pipe extends upwardly bent from an end of the second pipe along an inner surface of the condenser.

Images