KR101166574B1 - Distributor for multi type air conditioner - Google Patents

Abstract

The present invention relates to a distributor of a multi-type air conditioner, in which a filling part filled with a foaming liquid is formed inside a casing forming the outer shape of the distributor.

The present invention, the casing 310 to form an appearance, a silencer 660 formed inside the casing 310 to remove the noise generated when the refrigerant flows, and the casing 310 is provided with the silencer 660 Filling part 370 filled with the foam (P) of the inside and the exposed portion 380 is provided on the inner side of the casing 310 is provided with an electronic expansion valve 650 to control the flow rate of the refrigerant; Has a configuration. In addition, the inside of the casing 310 is divided into the filling part 370 and the exposed part 380 by the barrier 360, and foaming liquid P is formed inside the casing 310 at one side of the casing. The injection foam injection hole 340 is formed. According to the distributor of the multi-type air conditioner according to the present invention having such a configuration, there is an advantage that can block the noise and heat generated during the flow of the refrigerant.

Air Conditioner, Multi Type, Dispenser, Foam, Filling

Description

Distributor for multi type air conditioner {Distributor for multi type air conditioner}

1 is a block diagram showing a configuration of a multi-type air conditioner to which a distributor of a conventional multi-type air conditioner is applied.

Figure 2 is a perspective view showing the shape of a distributor of a multi-type air conditioner according to the prior art.

Figure 3 is a schematic diagram showing the internal structure of the distributor of the multi-type air conditioner according to the prior art.

Figure 4 is a block diagram showing the configuration of a multi-type air conditioner to which the distributor of the multi-type air conditioner according to the present invention.

Figure 5 is a perspective view showing the upper shape of the distributor of the multi-type air conditioner according to a preferred embodiment of the present invention.

Figure 6 is a perspective view showing the bottom shape of the distributor of the multi-type air conditioner according to a preferred embodiment of the present invention.

Figure 7 is a perspective view showing the internal structure of the distributor of the multi-type air conditioner according to a preferred embodiment of the present invention.

8 is an exploded perspective view showing a configuration of a barrier and a casing which are main components of a distributor of a multi-type air conditioner according to a preferred embodiment of the present invention.

9 is a perspective view showing an exposed part and a filling part of a distributor which is a main component of a multi-type air conditioner according to a preferred embodiment of the present invention;

Explanation of symbols on the main parts of the drawings

100. Outdoor unit 200. Indoor unit

300. Dispenser 310. Casing

312. Outdoor high pressure piping installation hole 314. Outdoor low pressure piping installation hole

316. Interior high pressure overload installation hole 317. Barrier insertion hole

318. Indoor low pressure piping installation hole 319. Screw hole

320. Top panel 322. Mounting bracket

324. Screw holes 326. Hanging groove

330. Control cover 332. Control PCB

334. PCB case 340. Foam inlet

350. Cable Hole 360. Barrier

362. Low pressure side through hole 364. High pressure side through hole

366. Through-hole expansion valve 370. Filling section

380. Exposed 400. High Pressure Tube

420. Low Pressure Pipe 500. High Pressure Connector

520. Low pressure connector 600. High pressure side piping

620. Outdoor high pressure socket 640. Indoor high pressure socket                 

650. Expansion valve 660. Silencer

670. Branch Pipes 680. Strainers

700. Low pressure side piping 720. Outdoor side low pressure socket

740. Indoor low pressure socket 800. Insulation

R. Indoor space P. Foam

The present invention relates to an air conditioner, and more particularly, to a distributor of a multi-type air conditioner, in which a filling part filled with a foaming liquid is formed inside a casing forming the outer shape of the distributor.

In general, an air conditioner is a cooling / heating system that cools a room by a repetitive action of inhaling hot air in a room, exchanging heat with a low temperature refrigerant, and then discharging it into the room. -Condenser-Expansion valve-Evaporator which forms a series of cycles.

In addition, in recent years, there are various additions such as air purifying function that sucks and contaminates indoor contaminated air in addition to heating and cooling, and then makes it into clean air and reinjects it into the room, and dehumidifying function makes the humid air into wet and dry air and reinjects it into the room. It also serves as a functional.

Meanwhile, as is well known, air conditioners may be classified into a separate type air conditioner in which the outdoor unit and the indoor unit are separately installed, and an integrated air conditioner in which the outdoor unit and the indoor unit are integrally installed.

In addition, recently, a multi-type air conditioner has been released that can be effectively applied when installing two or more air conditioners in a home or when installing an air conditioner in each office in a building having several offices. This multi-type air conditioner is connected to a plurality of indoor units in one outdoor unit, it is possible to obtain the same effect as installing a plurality of separate air conditioner.

Therefore, a multi-type air conditioner has been developed, in which only one large outdoor unit having a sufficient refrigerant supply capacity is installed outside the building, and a distributor for distributing and supplying refrigerant from the outdoor unit to the indoor unit of each room is provided.

1 is a block diagram showing a configuration of a multi-type air conditioner to which a distributor of a conventional multi-type air conditioner is applied. As shown in the drawing, an outdoor heat exchanger (not shown) and a refrigerant that exchange heat with outdoor air are shown in the outdoor side. An outdoor unit 10 having a compressor (not shown) for compressing at high temperature and high pressure is formed.

The indoor unit 20 includes an indoor unit 20 having an indoor heat exchanger (not shown) that exchanges heat with indoor air by a refrigerant supplied from the outdoor unit 10, and the outdoor unit 10 and the plurality of indoor units 20. Distributors 30 are formed between the outdoor unit 10 and the indoor unit 20 to control the flow between the outdoor unit 10 and the indoor unit 20.

Therefore, the refrigerant supplied from the one outdoor unit 10 is supplied to the plurality of indoor units 20 to perform air conditioning of the indoor space R requiring each air conditioner, wherein the outdoor unit 10 The refrigerant flow between the indoor unit 20 and the outdoor unit 10 is controlled by the distributor 30 formed between the indoor unit 20 and each indoor unit 20.

That is, the refrigerant of the outdoor unit 10 flows into the indoor unit 20 at an appropriate flow rate through the distributor 30, and each indoor unit 20 is provided with a distributor 30 corresponding to each indoor unit 20. The flow rate of the refrigerant flowing into is individually controlled.

2 and 3 show the structure of a distributor of a multi-type air conditioner according to the prior art. As shown in the drawing, the distributor 30 includes a casing 40 forming an outer shape and an outdoor pipe connecting portion 42 and an indoor pipe connecting portion 44 connected to the refrigerant pipes 52 and 54 through which the refrigerant flows. Is formed.

The casing 40 is formed in a substantially rectangular shape to form the outline of the dispenser 30 and protects the components inside the dispenser 30. In addition, one side surface of the casing 40 is formed with an outdoor pipe connection part 42 connected to the outdoor side pipe 52 through which the refrigerant flows from the outdoor unit 10, and supplies the refrigerant to the indoor unit 20. An indoor pipe connection part 44 connected to the side pipe 52 is formed.

An input pipe 56 is formed inside the casing 40 to be a passage through which the refrigerant flows to the electronic expansion valve 60, which will be connected to the outdoor pipe connecting portion 42 and will be described below. At one side of the) is formed a strainer 50 for filtering foreign matter contained in the refrigerant flowing through the input pipe 56.

The end of the input pipe 56 is connected to the electromagnetic expansion valve 60. The electromagnetic expansion valve 60 reduces the refrigerant flowing from the outdoor unit 10 and adjusts the flow rate of the refrigerant supplied to the indoor unit 20.

One side of the electromagnetic expansion valve 60 is connected to the input pipe 56 and the other side is connected to the output pipe 62. The output pipe 62 is a pipe for guiding the refrigerant decompressed through the electronic expansion valve 60 inside the distributor 30 to the outside of the distributor 30, and one side thereof is connected to the electromagnetic expansion valve 60. The other side is connected to the indoor pipe connection 44.

Dew formation occurs on the surfaces of the input pipe 56 and the output pipe 62 by the refrigerant entering and exiting the casing 40 through the outdoor pipe connection part 42 and the indoor pipe connection part 44. The heat insulating material 70 is formed on the outer circumferential surfaces of the input pipe 56 and the output pipe 62 in order to prevent it.

On the other hand, since the operation of the electromagnetic expansion valve 60 is controlled by a controller (not shown) formed on the outside of the distributor 30, the connection line 72 connecting the electromagnetic expansion valve 60 and the control unit is the distributor. Exposed outside the casing 40 of 30 extends to the control unit of the indoor unit 20.

Hereinafter, the operation of the distributor of the conventional multi-type air conditioner having the above configuration will be described.

Referring to the cooling operation of the multi-type air conditioner, the compressor (not shown) included in the outdoor unit 10 compresses the refrigerant at high temperature and high pressure, and the refrigerant compressed at high temperature and high pressure is an outdoor heat exchanger (not shown). After the heat exchange with the outdoor air is carried out through the high-pressure tube 12, which is a passage for moving the high-pressure refrigerant is transferred to each indoor space (R) required for air conditioning.

In addition, the refrigerant transferred through the high pressure tube 12 is branched into each indoor space (R) and flows into the indoor unit (20) provided in each indoor space (R).

At this time, the distributor 30 is provided between the outdoor unit 10 and the indoor unit 20 is provided with an electronic expansion valve 60 for adjusting the refrigerant flow rate. Therefore, the refrigerant of the outdoor unit 10 is supplied to the indoor unit 20 through the distributor 30 as much as necessary. The distributor 30 is connected to one indoor unit 20 of each indoor space to control refrigerant flow independently of each indoor unit 20.

The refrigerant introduced into the indoor unit 20 cools the indoor space R by heat-exchanging with indoor air through the indoor heat exchanger (not shown), and the refrigerant passage passing through the indoor heat exchanger is a low pressure refrigerant moving passage again. The low pressure pipe 14 is introduced into the outdoor unit 10 to complete the cycle.

On the other hand, to look at the action inside the distributor in more detail, the outdoor side pipe 52 which is branched in the high-pressure pipe connected to the outdoor unit 10 to transfer the refrigerant is the distributor 30 by the outdoor pipe connecting portion 42. The high pressure refrigerant compressed by the outdoor unit 10 is coupled to the input pipe 56 inside the distributor 30 and flows into the distributor 30.

The high pressure refrigerant introduced into the distributor 30 passes through the strainer 50, and foreign substances contained in the refrigerant are filtered and introduced into the electromagnetic expansion valve 60. The electronic expansion valve 60 controls the amount of refrigerant flowing into the indoor unit 20 by supplying the refrigerant as necessary to the indoor unit 20 in accordance with the temperature of each indoor space R of the indoor unit 20. Adjust cooling performance.

The output pipe 62 for guiding the refrigerant passing through the electromagnetic expansion valve 60 from the inside of the distributor 30 to the outside and the indoor side pipe 52 for supplying the refrigerant to the indoor unit 20 are indoor pipe connection parts 44. Combined by). Therefore, the refrigerant passing through the distributor 30 is introduced into the indoor unit 20 through the indoor side pipe 52.

However, the above conventional technologies have the following problems.

In the conventional configuration as described above, only the electromagnetic expansion valve 60 for controlling the refrigerant flow rate and the strainer 50 for filtering foreign matter in the refrigerant are provided in the distributor 30. Therefore, the refrigerant does not effectively block the noise generated while moving along the pipes 56 and 62 in the distributor 30.

Therefore, the quietness, which is one of the important performance factors of the air conditioner, cannot be maintained, and noise generated during the operation of the air conditioner is exposed to the user, which is a direct problem causing user's emotional dissatisfaction.

In addition, the inside of the distributor 30 is not provided with a heat insulating material to prevent the heat generated in the distributor 30 from leaking to the outside so that the heat generated inside the distributor 30 is transferred to the outside as it is. .

That is, due to the continuous flow of the high temperature and high pressure refrigerant through the input pipe 56 and the output pipe 62 in the distributor 30, the heat of the high temperature of the refrigerant is released to the outside by conduction, The friction between the refrigerant and the pipes 56 and 62 caused by the flow generates high temperature heat inside the distributor 30 and flows out.                         

This causes a malfunction of the dispenser 30, thereby lowering the operating performance of the dispenser 30, as well as causing the user to feel uncomfortable due to the heat generated by the dispenser 30 during cooling operation, thereby impairing the user's satisfaction. The problem which becomes a factor arises.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above. To provide.

According to a feature of the present invention for achieving the object as described above, the present invention is a casing to form an appearance, a silencer formed inside the casing to remove the noise generated when the refrigerant flows, the casing is installed And an exposed part formed inside the casing with a foaming liquid, and an exposed part formed inside the casing to adjust a refrigerant flow rate.

The inner side of the casing is partitioned by the barrier into the filling and exposing portions.

One side of the casing is formed with a foam liquid inlet through which the foam liquid is injected into the casing.

The barrier is formed with a plurality of through holes through which the pipe through which the refrigerant flows.                     

According to the indoor unit of the air conditioner according to the present invention having such a configuration, there is an advantage that can block the noise and heat generated during the flow of the refrigerant inside the distributor of the multi-type air conditioner.

Hereinafter, the configuration of a preferred embodiment of a multi-type air conditioner according to the present invention as described above will be described in detail with reference to the accompanying drawings.

4 is a block diagram showing the configuration of a multi-type air conditioner to which the distributor of the multi-type air conditioner according to the present invention is applied. According to the drawings, the multi-type air conditioner is an indoor unit 100 and an outdoor unit having an outdoor heat exchanger (not shown) that performs heat exchange with outdoor air and a compressor (not shown) for compressing a low temperature low pressure refrigerant into a high temperature high pressure refrigerant. An indoor unit 200 having an indoor heat exchanger (not shown) that exchanges heat with air, and a distributor 300 that controls the refrigerant flow from the outdoor unit 100 to each indoor unit 200.

The refrigerant compressed by the compressor inside the outdoor unit 100 exchanges heat with outdoor air by the outdoor heat exchanger. The outdoor unit 100 is in communication with one end of the high pressure pipe 400.

The high pressure pipe 400 is a single pipe through which a high pressure refrigerant flows to the distributor 300, and the other end of the high pressure pipe 400 communicates with the distributor 300. Therefore, the high pressure refrigerant from the outdoor unit 100 is guided to the distributor 300.

The refrigerant introduced into the distributor 300 includes the refrigerant having the flow rate required for each indoor unit 200 by the electronic expansion valve 650 formed inside the distributor 300, the indoor unit 200 and the distributor 300. It is supplied to the indoor unit 200 through the high-pressure connection pipe 500 for connecting.

In addition, the refrigerant introduced into the indoor unit 200 is heat-exchanged with the indoor air through an indoor heat exchanger (not shown) to adjust the temperature of the indoor space (R). The refrigerant passing through the indoor unit 200 is guided back to the distributor 300 through the low pressure connection pipe 520.

The plurality of low pressure connection pipes 520 are connected to the low pressure side pipe 700 inside the distributor 300, and the low pressure side pipe 700 is connected to the low pressure pipe 420 on the outside of the distributor 300. . Therefore, the refrigerant flows back into the outdoor unit 100 through the low pressure tube 420 to complete a cycle.

5 and 6 are perspective views showing the external appearance of the distributor which is a main component of the multi-type air conditioner according to the preferred embodiment of the present invention. It is formed by the casing 310 and the upper panel 320 to form the outer appearance of the upper surface and the control unit cover 330 to form a portion of the lower surface.

The casing 310 is formed in a substantially hexahedral shape with an upper surface opened, and an open end of the upper surface of the casing 310 is bent inward to be easily coupled to the upper panel 320 that shields the upper surface.

Each corner portion of the upper panel 320 is provided with a mounting bracket 322 for attaching the distributor 300 to the ceiling or wall. One side of the mounting bracket 322 is coupled to the upper panel 320 and the other side is formed to extend outwardly horizontally with the upper panel 320. A screw hole 324 for screwing is formed on the outer side of the extended portion, and a hook groove 326 for installing the distributor 300 on a separately formed support (not shown) is formed inside.

On the other hand, the lower portion of the casing 310 is formed stepped, the stepped surface PCB (PCB: Printed Circuit Board) (332) and PCB case 334 to be described below is formed. Then, the control cover 330 for shielding the PCB case 334 is formed to be removable. When the control unit cover 330 is mounted, the overall appearance of the distributor 300 is completed in a substantially hexahedral shape.

An outdoor side high pressure socket 620 is formed on the left side of the casing 310 (see FIG. 5). The outdoor high pressure socket 620 is a high-pressure pipe 400 for transferring the high-pressure refrigerant compressed by a compressor (not shown) in the outdoor unit 100 to the distributor 300 and the inside of the distributor 300. It is preferable to use a flare socket as a socket to facilitate the connection with the high-pressure side pipe 600.

An outdoor side low pressure socket 720 is formed at a side of the outdoor high pressure socket 620. The outdoor side low pressure socket 720 is a low pressure refrigerant after the heat exchange in the indoor unit 200 through the low pressure side pipe 700 inside the distributor 300 through the low pressure pipe 420 through the outdoor unit 100 It is preferable to use a flare socket as a socket to facilitate the connection of the low pressure pipe 420 and the low pressure side pipe 700 to be introduced into.

An indoor high pressure socket 640 is formed on the opposite side corresponding to one side of the casing 310 in which the outdoor low pressure socket 720 and the outdoor high pressure socket 620 are formed. The indoor high pressure socket 640 allows the high pressure side pipe 600 inside the distributor 300 and the high pressure connecting pipe 500 for transferring the high pressure refrigerant to the indoor unit 200 to be easily coupled to each other. . In addition, the indoor high pressure socket 640 preferably uses a flare socket.

An indoor low pressure socket 740 is formed below the indoor high pressure socket 640. The indoor low pressure socket 740 allows the low pressure connection pipe 520 to which the refrigerant which has completed heat exchange in the indoor unit 200 to be transferred, and the low pressure side pipe 700 inside the distributor 300 can be easily coupled. . In addition, the indoor low pressure socket 740 also preferably uses a flare socket.

The indoor high pressure socket 640 and the indoor low pressure socket 740 are formed by the number of indoor units 200 connected to the distributor, and each of the indoor high pressure socket 640 and the indoor low pressure socket 740 are respectively. They are arranged laterally from the top and bottom.

In addition, both ends of the inner pipes 600 and 700 of the distributor 300 connected to the plurality of sockets 620, 640, 720 and 740 formed on the outside of the distributor 300 are different from each other in the temperature of the refrigerant transferred from the inside of the pipes 600 and 700. The heat insulating material 800 for preventing dew condensation by is formed.

On the other hand, the side of the portion formed to protrude downward from the casing 310 is formed with a foam liquid inlet 340 to which the foaming liquid (P) can be injected to prevent noise inside the casing (310). The foam liquid P is filled through the foam liquid inlet 340 to foam the inside of the casing 310.

Side of the casing 310, the control cover 330 is formed on the side of the connecting line 652 for connecting the electronic expansion valve 650 in the casing 310 and the control PCB 332 to be described below The cable hole 350 serving as an entrance and exit is formed.

The PCB case 334, on which the control PCB 332 will be described, is formed on the stepped surface of the casing 310 in which the cable hole 350 is formed, and more specifically, the casing 310 in which the control cover 330 is formed. do. The control PCB 332 is a circuit for controlling the electronic expansion valve 650 in the casing 310, the control PCB 332 and the PCB case 334 is shielded by the control cover 330.

7 is a plan view showing the internal structure of the dispenser according to the present invention. According to the drawing, the inside of the dispenser 300 is filled with a foam liquid P filled by a barrier 360 having a substantially square plate shape ( 370 and the electronic expansion valve 650 is divided into two parts of the exposed portion 380 is exposed. A plurality of through holes 362, 364 and 366 are formed in the barrier 360, and the high pressure side pipe 600 and the low pressure side pipe 700 are formed through the through holes 362, 364 and 366.

On the inner bottom surface of the casing 310 is formed a low pressure side pipe 700 which is a passage through which the refrigerant that has completed heat exchange in the indoor unit 200 flows inside the distributor 300, and the low pressure side pipe 700 is formed. The high-pressure side pipe 600 is formed to be a passage through which the high-pressure refrigerant supplied from the outdoor unit 100 flows inside the distributor 300.

At both ends of the low pressure side pipe 700, an indoor low pressure socket 740 and an outdoor low pressure socket 720 are formed, so that the low pressure side pipe 700 and the external pipes 520 and 420 are easily connected. In addition, both sides of the high-pressure side pipe 600, the indoor high pressure socket 640 and the outdoor high pressure socket 620 is formed, respectively, the high-pressure side pipe 600 and the external pipe (500, 400) easily connected do.

On the other hand, the low-pressure side pipe 700 and the high-pressure side pipe 600, the heat insulating material 800 is formed in the portion adjacent to each of the sockets (620, 640, 720, 740) formed at both ends. The heat insulating material 800 is formed so as to surround the outer peripheral surfaces of the low pressure side pipe 700 and the high pressure side pipe 600 so that the low pressure side pipe 700 and the high pressure side pipe 600 are not exposed to the outside.

8 is an exploded perspective view showing a configuration of a barrier and a casing which are main components of a distributor of a multi-type air conditioner according to a preferred embodiment of the present invention. A barrier 360 is formed to divide the inside of the 310 into two parts of the exposed part 380 and the filling part 370.

The high-pressure side pipe 600 formed in the form of a single pipe on the front of the casing 310 is installed in the outdoor side high pressure pipe installation hole 312 and the low-pressure side pipe formed in the form of a single pipe (3) Each of the outdoor side low pressure pipe installation holes 314 through which 700 passes through the outdoor unit 100 is formed.

The high pressure side pipe 600 formed by branching into a plurality of pipes on the rear surface of the casing 310 is branched into a plurality of indoor side high pressure pipe installation holes 316 and a plurality of pipes installed to penetrate the indoor unit 200. A plurality of indoor side low pressure pipe installation holes 318 are formed through which the formed low pressure side pipe 700 penetrates toward the indoor unit 200.

The indoor high pressure piping installation hole 316 is formed above the indoor low pressure piping installation hole 318, and each indoor low pressure piping installation hole 318 and the indoor high pressure piping installation hole 316 are sideways. Is arranged.

A connecting line connecting the electronic expansion valve 650 formed inside the exposed part 380 and the control PCB 340 formed on one side of the bottom surface of the casing 310 to the side of the casing 310 in which the exposed part 380 is formed. A cable hole 350 through which 652 penetrates is formed, and a foaming liquid for injecting the foaming liquid P into the filling part 370 on the side of the casing 310 in which the filling part 370 is formed. Injection hole 340 is formed.

On the other hand, the end of the opened upper surface of the casing 310 is formed to be bent vertically by a predetermined length inside. Therefore, coupling of the upper panel 320 to form the upper surface of the casing 310 is facilitated, the bent surface of the casing 310 is a screw hole 319 for screwing the upper panel 320 A plurality is formed.

A barrier insertion hole 317 is formed at an approximately center portion of the bent surface of the casing 310, that is, the portion where the barrier 360 is formed. The barrier insertion hole 317 is formed by short-circuiting a portion in which the barrier 360 is formed among the bent surfaces of the casing 310, and the barrier 360 is easily installed in the casing 310. do.

The barrier 360 is formed in a substantially rectangular plate shape, the ends of each surface are bent backwards, and is sized to partition the casing 310 when installed in the casing 310. In addition, a plurality of through holes 362, 364, and 366 are formed on the front surface of the barrier 360 to pass through a plurality of pipes 600 and 700 that become flow paths of the refrigerant formed in the casing 310.                     

More specifically, the high-pressure side pipe 600 formed in the form of a single pipe of the high-pressure side pipe 600 and the low-pressure side pipe 700 to which the high-pressure refrigerant and the low-pressure refrigerant are transferred in the casing 310; The high pressure side piping hole 364 and the low pressure side piping hole 362 through which the low pressure side pipe 700 penetrates are formed, respectively. The high pressure side pipe through hole 364 and the low pressure side pipe through hole 362 are located at the positions of the outdoor high pressure pipe installation hole 312 and the outdoor low pressure pipe installation hole 314 formed at one side of the casing 310. The front side of the corresponding barrier 360 is formed.

In addition, a plurality of electromagnetic expansion valve through holes 366 through which the electronic expansion valve 650 connected to the high pressure side pipe 600 passes is formed on the front surface of the barrier 360. The electromagnetic expansion valve through hole 366 is formed in a shape in which a rectangular groove having a narrow width in the longitudinal direction is further formed in a substantially circular hole, and the low pressure side pipe through hole 362 and the high pressure side pipe are formed. The electromagnetic expansion valve through hole 366 formed adjacent to the through hole 364 is formed by rotating about 90 ° counterclockwise.

9 is a perspective view showing one side of the distributor of the main component of the multi-type air conditioner according to a preferred embodiment of the present invention foamed, as shown in the figure, the upper panel 320 of the casing 310 Removing and exposing the inside of the distributor 300, the casing 310 is divided into two parts, the exposed portion 380 and the filling portion 370 by the barrier (360).

The exposed part 380 is formed on the side surface on which the indoor high pressure socket 640 and the indoor low pressure socket 740 are formed based on the barrier 360, and is opened upward. A plurality of electromagnetic expansion valves 650 formed on one side of the high pressure side pipe 600 are formed in the exposed part 380.

The electromagnetic expansion valve 650 is formed in the same number as the indoor unit 200 connected to the distributor 300, and is connected to the high pressure side pipe 600 passing through the barrier 360. The connection line 652 connected to each of the electromagnetic expansion valves 650 is connected to the control PCB 340 formed on the bottom surface of the casing 310 through the cable hole 350 formed on one side of the casing 310. .

In addition, a portion of the low pressure side pipe 700 and the high pressure side pipe 600 passes through the side portion of the casing 310 opposite to the barrier 360 above the electromagnetic expansion valve 650. The low pressure side pipe 700 is a portion facing the indoor unit 200 from the indoor unit 200, and the high pressure side pipe 600 is a portion facing the indoor unit 200 from the outdoor unit 100.

The filling part 370 has a portion of the low pressure side pipe 700 and the high pressure side pipe 600 formed therein, and the high pressure side pipe 600 is branched into a plurality of pipes therein. One silencer 660 is attached to each of the plurality of pipes.

In addition, in addition to installing a silencer 660 in order to prevent noise generated when the high temperature and high pressure refrigerant passes through a narrow tube, the foaming liquid (P) through the foam liquid inlet 340 formed at one side of the casing 310. ) Is injected to foam the entire filling part 370.

In this case, the reason why the entire casing 310 is not foamed is to improve serviceability of the electromagnetic expansion valve 650. In addition, the barrier 360 dividing the exposed part 380 and the filling part 370 prevents the foaming liquid P of the filling part 370 from entering the exposed part 380.

Hereinafter, the operation of the multi-type air conditioner to which the distributor of the multi-type air conditioner according to the present invention having the configuration as described above is applied will be described.

As described above, in the multi-type air conditioner according to the present invention, a plurality of indoor units 200 are connected to one outdoor unit 100, and some or all indoor units 200 are operated according to a user's selection.

When the air conditioner is operated (cooling operation), the outdoor solenoid valve (not shown) mounted inside the outdoor unit 100 is opened to allow the refrigerant to flow between the outdoor unit 100 and the indoor unit 200. At this time, the electronic expansion valve 650 formed inside the distributor 300 is controlled by the control of the control unit 328 formed below the distributor 300.

The electronic expansion valve 650 operates to supply as much refrigerant as necessary to the indoor unit 200 as necessary to control the flow rate of the refrigerant supplied to the indoor unit 200, and does not require cooling. In the indoor unit 200, the electromagnetic expansion valve 650 is closed to block the supply of the refrigerant.

First, the refrigerant compressed by the outdoor unit 100 and compressed at a high temperature and high pressure flows into the distributor 300 through the high pressure pipe 400. A refrigerant flows inside the distributor 300 along the high pressure side pipe 600 connected to the outdoor high pressure socket 620.

The refrigerant flowing along the high pressure side pipe 600 is filtered by the strainer 680 formed in the high pressure side pipe 600, the foreign matter in the refrigerant is filtered, the branch pipe formed on one side of the high pressure side pipe 600 again ( The refrigerant is transferred along the high pressure side pipe 600 branched by the number of the indoor units 200 by 670.

The amount of the refrigerant flowing into each indoor unit 200 is controlled by the electronic expansion valve 650 formed in each of the branched high pressure side pipes 600, and the electronic expansion valve 650 is the control unit 328. The control is controlled by the control ratio 340.

The refrigerant passing through the electromagnetic expansion valve 650 passes through the silencer 660 to remove the noise generated during the flow inside the high pressure side pipe 600, and the distributor by the indoor high pressure socket 640. It is discharged to the outside of the (300). The refrigerant passing through the distributor 300 is introduced into the indoor unit 200 by the high-pressure connecting pipe 500 connected to the indoor high pressure socket 640.

While passing through an indoor heat exchanger (not shown) formed inside the indoor unit 200, the refrigerant performs heat exchange with air in the indoor space, and the indoor heat exchanger serves as an evaporator to cool the indoor space R. . After the heat exchange in the indoor unit 200, the refrigerant is introduced back into the distributor 300 through the low pressure connection pipe (520).

The low pressure connecting pipe 520 is connected to the indoor low pressure socket 740, the indoor low pressure socket 740 is connected to the low pressure side pipe 700 inside the distributor 300 again. The low pressure side pipes 700 connected to the plurality of indoor low pressure sockets 740 are combined in a single pipe form in the distributor 300. At this time, the combined low pressure side pipe 700 is bypassed in one direction in the distributor 300 so that a pipe in which the refrigerant is biased in the plurality of low pressure side pipes 700 does not occur.                     

The refrigerant transferred to the outdoor side low pressure socket 720 formed on one side of the distributor 300 along the low pressure side pipe 700 is again connected to the outdoor unit through the low pressure pipe 420 connected to the outdoor low pressure socket 720. Flows into (100). The refrigerant is again compressed in the compressor (not shown) of the outdoor unit 100 and transferred to the high pressure pipe 400 to complete the cycle.

At this time, the frictional heat generated during the flow of the refrigerant in the distributor 300 and the conduction heat generated by the high-temperature refrigerant are blocked by the filling part 370 filled with the foam liquid P, and generated by the high-speed flow of the refrigerant. Noise is also effectively blocked at the filling unit 370.

When the electronic expansion valve 650 in the distributor 300 requires service, the upper panel 320 of the upper surface of the distributor 300 is disengaged by separating the screw coupling, and the exposure unit 380 is mounted. Take the necessary action to the electronic expansion valve 650 to complete the service.

On the other hand, when it is operated by heating operation, the refrigerant flows in the opposite direction to the above.

The scope of the present invention is not limited to the above-exemplified embodiments, and many modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

In the distributor of the air conditioner according to the present invention as described in detail above, the inside of the casing forming the outer shape is divided into two parts by the barrier, the exposed portion and the filling portion, the filling portion through the foam liquid inlet on one side of the casing Foam is injected and foam filled.

Therefore, the filling part is sealed by the foam filling inside, thereby has the effect of blocking the noise generated in the refrigerant flowing along the refrigerant pipe inside the casing. In addition, the silencer provided in the casing not only removes noise generated during the flow of the primary refrigerant, but also doubles the noise blocking effect due to foam filling of the filling part.

As a result, it is possible to improve the quietness, which is one of the most important elements of the air conditioner installation, and the user can use the air conditioner in a more quiet environment to maximize the user's satisfaction.

In addition, the heat dissipation in the distributor by the frictional heat generated when the refrigerant flows in the piping inside the conductive heat generated by the refrigerant itself compressed at high temperature and high pressure can also be effectively blocked by the filler.

Therefore, it prevents a malfunction due to overheating of the dispenser that may occur during operation of the air conditioner, and does not give a discomfort to the user in the vicinity of the dispenser to solve the user's dissatisfaction. In addition, the effect of increasing the cooling efficiency can be expected by removing the unnecessary heat generating source.

Claims (4)

Casing forming appearance, A silencer formed inside the casing to remove noise generated during refrigerant flow; A filling part filling the inside of the casing provided with the silencer with a foaming liquid, Is formed on the inside of the casing includes an exposed portion that is provided with an electronic expansion valve to control the refrigerant flow rate, The inner side of the casing is partitioned into the filling portion and the exposed portion by a barrier, A cable hole is formed at one surface of the casing in which the exposed portion is formed, and a connection line connecting the electromagnetic expansion valve formed inside the exposed portion and the control PCB formed at one side of the bottom surface of the casing passes therethrough. On one surface of the casing formed the filling portion, a foam liquid inlet for injecting the foam liquid into the filling portion is formed, The inside of the filling part is a distributor of the multi-type air conditioner, characterized in that the low-pressure side pipe and the high-pressure side pipe branched into a plurality of pipes are attached to each of the silencer. The method of claim 1, On one side of the casing, an indoor high pressure socket and an indoor low pressure socket are formed, The exposed part is formed by opening upwards on a side surface on which the indoor high pressure socket and the indoor low pressure socket are formed, based on the barrier, The inside of the exposed part, the high-pressure side pipe and the distributor of the multi-type air conditioner, characterized in that a plurality of the electromagnetic expansion valve formed on one side of the high-pressure side pipe. The method of claim 1, The filling portion, the low pressure side pipe and a portion of the high pressure side pipe is formed therein, The high pressure side pipe, the distributor of the multi-type air conditioner, characterized in that the branched into a plurality of pipes. The method of claim 1, wherein the barrier, The distributor of the multi-type air conditioner, characterized in that a plurality of through-holes through which the pipe through which the refrigerant flows are formed.

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