KR20140062214A - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator. The present invention relates to a refrigerating machine comprising a compression unit for compressing a refrigerant; A condenser for condensing the refrigerant passing through the compression unit; A capillary unit for lowering the temperature and pressure of the refrigerant passing through the condensing unit; An evaporator for evaporating the refrigerant passing through the capillary portion; A heat exchanger for exchanging heat with the refrigerant pipe entering the condenser or coming out of the condenser; And a water supply valve for supplying water to the heat exchanging part, wherein the heat exchanging part lowers the temperature of the refrigerant passing through the heat exchanging part.

Description

Refrigerator {Refrigerator}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a refrigerator, and more particularly, to a refrigerator having improved operation efficiency.

Generally, a refrigerator is used for freezing food or the like or refrigeration. The refrigerator includes a case constituting a storage space separated by a freezing compartment and a refrigerating compartment, and a refrigerator compartment including a compressor, a condenser, an evaporator, And a device for lowering the temperature of the liquid.

A door for opening and closing the freezing compartment and the refrigerating compartment is mounted on one side of the case.

In the refrigerator having such a structure, the compressor compresses the gaseous state refrigerant at a low temperature and a low pressure at a high temperature and a high pressure, and the gaseous state refrigerant of the compressed high temperature and high pressure is cooled and condensed as it passes through the condenser to become a high pressure liquid state. As the refrigerant passes through the capillary, the refrigerant is cooled by the refrigerating cycle in which the temperature and pressure of the refrigerant are lowered, the refrigerant continuously changes from the evaporator to the low-temperature and low-pressure gas,

Efforts are being made to save energy by improving the operation efficiency of the refrigeration cycle used in such refrigerators.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a refrigerator with improved operation efficiency.

Another object of the present invention is to provide a refrigerator which can improve the efficiency of the refrigeration cycle by lowering the temperature of the refrigerant entering the condenser or from the condenser.

In order to achieve the above object, the present invention provides a refrigerant compressor comprising: a compression unit for compressing refrigerant; A condenser for condensing the refrigerant passing through the compression unit; A capillary unit for lowering the temperature and pressure of the refrigerant passing through the condensing unit; An evaporator for evaporating the refrigerant passing through the capillary portion; A heat exchanger for exchanging heat with the refrigerant pipe entering the condenser or coming out of the condenser; And a water supply valve for supplying water to the heat exchanging part, wherein the heat exchanging part lowers the temperature of the refrigerant passing through the heat exchanging part.

In particular, the water supply valve is connected to an external water supply source, and water supplied from an external water supply source can be supplied into or cut off from the inside of the refrigerator.

On the other hand, the water passing through the heat exchanging part can be supplied to the dispenser or the ice maker.

When water is supplied to the dispenser or the icemaker, the flow path of the water supply valve is opened, and water in the heat exchange unit can move.

Furthermore, when water is supplied to either the dispenser or the icemaker, the flow path of the water supply valve is opened, and water in the heat exchange unit can move.

And a flow control valve for guiding the water to move the water passing through the heat exchanger to the dispenser or the ice maker.

On the other hand, when the flow path of the flow control valve is opened, the flow path of the water supply valve can be opened together.

Particularly, the flow of water in the heat exchanging part can be independently performed regardless of the flow of the refrigerant in the heat exchanging part.

The heat exchanger may include an outer portion through which refrigerant passes and an inner portion through which water passes, and the outer portion may be provided to surround the inner portion.

At this time, the outer portion and the inner portion may have the same center.

The refrigerant guided to the outer side portion can be drawn perpendicular to the outer side portion and discharged.

Of course, the heat exchanging part is installed in the machine room, and the outside part is exposed in the machine room where the compressing part is installed, so that heat exchange with the air inside the machine room can be performed.

On the other hand, the heat exchanger may be installed in a closed space in the main body where foaming by the foaming agent is performed.

The compressor further includes a first compressor for firstly compressing the refrigerant guided by the evaporator, and a second compressor for compressing the refrigerant compressed by the first compressor and guiding the refrigerant to the condenser, .

According to the present invention, the operation efficiency of the refrigerator is improved and energy can be saved.

Further, according to the present invention, the efficiency of the refrigeration cycle can be improved by lowering the temperature of the refrigerant entering the condensing portion or coming out of the condensing portion.

Further, according to the present invention, since the driving device for separately driving is not provided in order to lower the temperature of the refrigerant, the internal design of the refrigerator can be simplified.

1 is a perspective view of a refrigerator according to the present invention;
Figure 2 illustrates a refrigeration cycle in accordance with one embodiment of the present invention.
Fig. 3 is a view showing the machine room configuration in Fig. 2; Fig.
Fig. 4 is a perspective view of Fig. 3; Fig.
5 is a view specifically showing a heat exchanger;
Figure 6 shows a machine room configuration in which Figure 2 is implemented differently;
7 is a perspective view of Fig. 6; Fig.
8 is a diagram illustrating a refrigeration cycle according to another embodiment of the present invention.
9 is a diagram illustrating a refrigeration cycle according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator. Definitions of these terms should be based on the content of this specification.

1, the refrigerator according to the present invention includes a main body 1, a storage room 3 provided in the main body 1, and a door 5 for opening and closing the storage room.

The door 5 is rotatably disposed on the main body 1. The door 5 is provided with an ice making chamber 23 for ice and storing ice and a dispenser 40 for taking out water .

The ice making chamber 23 is provided with an ice maker 26 for ice making ice and an ice storage box 29 for storing the iced ice from the ice maker.

A water tank 13 for storing the water to be supplied to the dispenser 40 is provided under the ice making chamber 23. A channel control valve 33 is provided at one side of the water tank 13 to selectively or simultaneously guide water in the direction of the dispenser 40 and the ice maker 26.

The flow control valve 33 may be a three-way valve, one discharge portion may be connected to the water tank 13, and the other discharge portion may be connected to the ice maker 26. At this time, the flow control valve 33 can supply water selectively or simultaneously to the water tank 13 and the ice-maker 26.

That is, the flow control valve 33 can supply water to only one of the water tank 13 and the ice-maker 26, and can supply water to the water tank 13 and the ice- .

At the inlet side of the flow control valve 33, a flow rate sensor 100 capable of calculating the flow rate of water is provided. The flow rate sensor 100 determines the flow rate of water supplied to the ice maker 26 or the dispenser 40 when the flow control valve 33 guides water to the ice maker 26 or the dispenser 40 It is a measuring device.

The flow sensor 100 is mounted on a second water supply hose 57 and the second water supply hose 57 is finally connected to an external water supply source 10. The flow rate sensor 100 is connected to the external water supply source 10, (16) and a filter (19) for filtering water are provided between the water supply valve (10) and the water supply valve (16).

The water supply valve 16 functions to open and close a flow path through which water flows into the refrigerator from the external water supply source 10. That is, when the water supply valve 16 opens the flow passage, water can be introduced into the refrigerator from the external water supply source 10. When the water supply valve 16 closes the flow passage, water is supplied from the external water supply source 10 Can not enter the refrigerator.

An outlet water valve for opening and closing a flow path of water to be moved to the ice maker 26 or the dispenser 40 may be provided. At this time, the outlet-side water supply valve includes a second water supply valve (70) and a third water supply valve (80) to be described below.

The second water supply hose 57 is disposed along one side of the main body 1 and passes through the hinge unit 60 connecting the door 5 and the main body 1, And is connected to the flow sensor 100 and the flow control valve 33.

The first connection hose 55 connected to one side discharge portion of the flow control valve 33 is connected to the water tank 33 and the dispenser 40. At this time, the first connection hose (55) is provided with a third water supply valve (80) for opening and closing the water flow path to be moved to the dispenser (40). When the third water supply valve 80 opens the flow path, water can be supplied to the dispenser 40 through the first connection hose 55.

The second connection hose 56 connected to the other discharge portion of the flow control valve 33 is disposed to be lifted up along one side of the door 5 and is adapted to transport water to the ice- . At this time, the second connection hose (56) is provided with a second water supply valve (70) for opening and closing the flow channel of water to be moved to the ice maker (26). When the second water supply valve 70 opens the flow path, water can be supplied to the ice maker 26 through the second connection hose 56.

Here, the space inside the ice-making chamber 23 is closed by an ice-making chamber door (not shown) rotatably provided on one side wall of the ice-making chamber 23, thereby being partitioned from the inside of the storage chamber 3 .

Meanwhile, the external water source 10 is connected to the water supply valve 16 by a connection pipe 51. Water is always supplied to the inside of the connection pipe (51) by the water pressure supplied from the external water supply source (10). The water contained in the connection pipe 51 is moved so as to pass through the water supply valve 16 when the water supply valve 16 opens the flow passage while the water supply valve 16 closes the flow passage, And stops inside the pipe 51.

On the other hand, the water supply valve 16 and the filter 19 are sequentially connected by a first water supply hose 52 and a second water supply hose 57. The water supplied from the first water supply hose 52 to the second water supply hose 57 is supplied to the second water supply hose 57 through the second water supply hose 57, Can be moved. The heat exchanger 170 is a component that can cool the refrigerant circulating in the refrigeration cycle, which will be described later.

The water supply valve 16 and the heat exchanging unit 170 are connected by the first water supply hose 52 and the heat exchanging unit 170 and the filter 19 are connected by a second water supply hose 57 do. The water supplied from the external water supply source 10 passes through the first water supply hose 52 and passes through the heat exchange unit 170 and then flows through the second water supply hose 57 to the filter 19, .

At this time, the temperature of the water supplied from the external water source 10 may be equal to or lower than room temperature. Generally, the external water supplied by the water pipe or the like is moved to the home or office through the underground, so it is common to have a temperature lower than the normal temperature. Particularly, when the external water source 10 is ground water, it has a temperature lower than room temperature.

2 is a view illustrating a refrigeration cycle according to an embodiment of the present invention. This will be described below with reference to Fig.

A refrigerator according to the present invention includes a compressor 110 for compressing a refrigerant, a condenser 120 for condensing the refrigerant passed through the compressor 110, a condenser 120 for condensing the temperature and pressure of the refrigerant passing through the condenser 120, And a evaporator 140 for evaporating the refrigerant that has passed through the capillary tube 130. [ The refrigerant passes through the compressing unit 110, the condensing unit 120 and the capillary unit 130 in order and then the cool air is supplied to the outside from the evaporating unit 140. Thereafter, The refrigeration cycle is realized.

At this time, the heat exchanging unit 170 is installed in the refrigerant pipe 112 connecting the condensing unit 120 in the compression unit 110. Of course, the refrigerant pipe 112 passing through the inside of the heat exchanging unit 170 is provided so as to perform heat exchange with water in the heat exchanging unit 170, and is not mixed with water in the heat exchanging unit 170, Respectively.

The heat exchange unit 170 is connected to the first water supply hose 52 and the second water supply hose 57 so that water can pass through the heat exchange unit 170. That is, in the heat exchanger 170, water and refrigerant are exchanged with each other by conduction, and water having a relatively low temperature can lower the temperature of the refrigerant. That is, the water guided by the first water supply hose 52 and the second water supply hose 57 in the heat exchange unit 170 and the refrigerant connected by the refrigerant pipe 112 can exchange heat with each other.

The temperature of the refrigerant circulating in the refrigeration cycle is typically the highest temperature while passing through the condensing section 120 from the compression section 110. This is because the refrigerant is compressed by the compression unit 110, and the compressed refrigerant rises to a high temperature.

On the other hand, the water guided to the heat exchanging part 170 is supplied from the external water source 10 and passes through only the water supply valve 16, so that the temperature is not substantially raised. Accordingly, water having a relatively low temperature is heat-exchanged with the refrigerant passing through the refrigerant pipe 112, so that the temperature of the refrigerant can be lowered.

Furthermore, the amount of refrigerant circulating in the refrigeration cycle in the refrigerator is not large. Therefore, even if heat exchange is performed between the refrigerant and water in the heat exchanging unit 170, the water temperature is not significantly increased because the amount of water is relatively large. Accordingly, the temperature of the water supplied to the user is not greatly increased, so that the temperature of the refrigerant can be lowered and the efficiency of the refrigeration cycle can be improved without causing a great inconvenience to the user.

2, the heat exchanging part 170 may be installed in the refrigerant pipe 114 connected to the capillary part 130 from the condensing part 120. An embodiment related to this will be described later with reference to Fig.

Fig. 3 is a view showing the machine room configuration in Fig. 2, and Fig. 4 is a perspective view of Fig. This will be described below with reference to Figs. 3 and 4. Fig. In FIG. 3 and FIG. 4, for simplification of the drawing, piping and other unnecessary structures for moving the refrigerant are omitted and simplified.

The refrigerator may include a machine room 2 in which the compressing unit 110, the condensing unit 120, and the like are installed. The machine room 2 may be provided at a lower portion of the main body of the refrigerator, but may be provided at an upper portion of the refrigerator, unlike in FIGS. The machine room (2) is a space in which various components installed in the refrigerator are installed. Unlike the refrigerator compartment or the freezer compartment, air can be freely introduced or discharged from the outside of the refrigerator.

When the machine room 2 is provided under the main body of the refrigerator, a storage room such as a refrigerator room and a freezer room may be provided above the machine room 2. The evaporator 140 for supplying cold air to the refrigerator compartment and the freezer compartment may be installed adjacent to the refrigerating compartment and the freezer compartment rather than the machine room 2 and may be installed in the piping for guiding the refrigerant to the evaporator 140. [ Can be extended from the machine room (2) toward the refrigerator compartment and the freezer compartment. At this time, some pipes can be embedded in the inner case and the outer case of the refrigerator body. Between the inner case and the outer case, the foaming agent is foamed after the foaming agent is injected for heat insulation. Thus, the inner case and the piping embedded in the outer case can not be heat-exchanged with the outside air.

The machine room 2 may be provided with a plurality of pipelines for guiding the refrigerant flow path so that the refrigerant can be circulated through the refrigeration cycle. The compressor room 110 can cool the compressing section 110 and the condensing section 120 A fan 180 may be provided.

The fan 180 is disposed between the compressing unit 110 and the condensing unit 120 to cool the compressing unit 110 and the condensing unit 120 with a single fan 180 have. That is, when the fan 180 is driven, any one of the compressing unit 110 and the condensing unit 120 can be cooled by the air flowing into the fan 180, The other of the compression section 110 or the condensation section 120 can be cooled by the air. At this time, the fan 180 can be operated only when the compression unit 110 is driven, and it can be determined whether the fan 180 is driven by a separate temperature sensor.

The heat exchanging part 170 is provided in the machine room 2 in which the compression part 110 is installed. The heat exchange unit 170 may be installed to be exposed in the machine room 2 to be in contact with air contained in the machine room 2. The machine room 2 generally has a temperature of about 32 ° C at normal temperature. Therefore, since the heat exchanging unit 170 is exposed to the inside of the machine room 2, the relatively hot refrigerant passing through the refrigerant pipe 112, that is, the refrigerant having the temperature of about 50 ° C, is heat-exchanged with the air inside the machine room Can be cooled.

On the other hand, since the refrigerant pipe 112 is cooled by water rather than air in the heat exchanging part 170, the temperature of the refrigerant passing through the refrigerant pipe 112 can be greatly lowered. This is because the cooling efficiency by the water-cooling type is generally higher than that of the air-cooling type.

A connection pipe (51) for guiding water from the external water supply source (10) to the water supply valve (16) is installed at one side of the water supply valve (16). The water supply valve (16) is provided with the first water supply hose (52) for guiding water to the heat exchange unit (170). The water of the connection pipe 51 can be guided to the first water supply hose 52 and moved to the heat exchange unit 170 by opening and closing the flow passage in the water supply valve 16.

5 is a diagram specifically showing a heat exchanger. This will be described below with reference to FIG.

The heat exchanging part 170 includes an inner part 172 connected to the first water supply hose 52 and the second water supply hose 57 and an outer part 174 connected to the refrigerant pipe 112, The outer side portion 174 may be provided to surround the inner side portion 172.

The outer side portion 174 is connected to the refrigerant pipe 112 through which the relatively high temperature refrigerant passes, and the outer side portion 174 is relatively hot.

On the other hand, the inner side portion 172 is connected to the first water supply hose 52 through which relatively cold water passes and the second water supply hose 57, so that the inner side portion 172 is relatively cold.

The cross-sectional area of the outer portion 174 may be the same as the cross-sectional area of the refrigerant pipe 112 so as not to affect the movement of the refrigerant. When the refrigerant guided through the refrigerant pipe 112 enters the outer side part 174, the pressure changes when the sectional area thereof is changed, which may affect the movement of the refrigerant.

Similarly, the cross-sectional area of the inner portion 172 may be equal to the cross-sectional area of the first water supply hose 52 and the second water supply hose 57 so as not to affect the movement of the refrigerant. However, the cross-sectional area of the inner portion 172 may be different from the cross-sectional area of the first water supply hose 52 and the second water supply hose 57, unlike the outer portion 174. Water is moved into the first water supply hose 52 and the second water supply hose 57 and a large load is not generated in the ice maker 26 or the dispenser 40 even if the flow rate of water to be moved is changed It is not.

Since the heat exchanging part 170 is installed to be in contact with air in the machine room, the outer side part 174 is heat-exchanged with the inside part 172 to the inside and heat exchange with air inside the machine room 2 to the outside . Therefore, the temperature of the refrigerant passing through the refrigerant pipe 112 can be effectively lowered. That is, the outer side portion 174 is simultaneously heat-exchanged by the inner side portion 172 and the air inside the machine room.

Further, since the inner part 172 is relatively low in temperature, heat exchange is not performed by the air inside the machine room, so that a lower amount of water in the inner part 172 can be transmitted to the outer part 174 .

If the temperature of the outer portion 174 is relatively low, the cool air may be consumed to cool the inner space of the machine room. However, in the present invention, since the temperature of the refrigerant passing through the refrigerant pipe 112 is lowered, it is possible to reduce the temperature of the refrigerant passing through the first water supply hose 52 and the second water supply hose 57, It is necessary to transfer the refrigerant to the refrigerant pipe 112 as much as possible without wasting the refrigerant discharged to the outside.

On the other hand, since forced convection is generated by the fan 180 described in FIGS. 3 and 4, the efficiency of cooling the refrigerant in the outer side portion 174 is improved have.

The outer side portion 174 is heat-exchanged with the inner side portion 172 by conduction, and the outer side portion 174 is heat-exchanged by convection with air inside the machine room.

It is possible that the flow of the refrigerant in the outer side portion 174 and the flow of the water in the inner side portion 172 are opposite directions. Since the refrigerant and water in the outer side part 174 and the inner side part 172 are moved in different directions, the heat exchange between the outer side part 174 and the inner side part 172 can be more easily performed. Of course, the water flow in the inner part 172 is generated when the dispenser 40 or the ice maker 26 is used, and is not generated when the dispenser 40 and the ice maker 26 are not used .

When water flows in the inner portion 172, the cooling efficiency of the refrigerant passing through the outer portion 174 can be improved.

In particular, the outer portion 174 and the inner portion 172 may be concentric with the same center. That is, the inner side portion may be formed of a hollow cylinder, and the outer side portion 174 may be formed of a cylinder having a larger radius, which is provided at the center of the inner side portion 172. So that the area in which the outer side portion 174 and the inner side portion 172 contact with each other can be increased with respect to the same cross sectional area.

The refrigerant pipe 112 may be vertically connected to the outer side portion 174. 5, the flow path of the refrigerant flowing in the outer side portion 174 and the flow path of the refrigerant drawn into the outer side portion 174 or discharged from the outer side portion 174 may be perpendicular to each other. That is, since there is a vertically bent portion of the refrigerant introduced into the outer side portion 174, sufficient heat exchange can be achieved due to the various forms of flow and the surface forming the outer side portion of the outer side portion 174.

In the heat exchanging part 170, the heat exchange efficiency can be improved because the refrigerant moving on the outer side part 174 and the water moving on the inner side part 172 come into contact with each other at a plurality of points or face contact.

Since the heat exchanging unit 170 is a component, the refrigerant pipe 112 is connected to the first water supply hose 52 and the second water supply hose 57 by welding or the like, Or the risk of dislodgement that may occur due to vibrations that may be caused by movement of water.

The operation of the heat exchanger will be described based on the movement of water and refrigerant according to the embodiment of the present invention.

First, the high-temperature refrigerant compressed by the compression unit 110 is guided to the refrigerant pipe 112. At this time, the refrigerant flows along the refrigerant pipe 112 and passes through the outer portion 174 of the heat exchange unit 170. Therefore, the temperature of the outer side part 174 is raised due to the temperature of the refrigerant, and can be partially cooled by heat exchange with the air inside the machine room 2.

At this time, when the fan 180 is driven, forced convection occurs between the inside of the machine room 2 and the outside portion 174, and the outside portion 174 can be cooled by convection.

The area where the outer side portion 174 contacts the air inside the machine room 2 becomes larger than when the heat exchanging portion 170 is not provided, so that the cooling efficiency by the convection can be improved. This is because the outer side portion 174 covers the inner side portion 172 and thus the area in which the outer side portion 174 contacts the air inside the machine room 2 becomes large.

The refrigerant discharged from the outer side portion 174 may be condensed while being guided to the condensing portion 120 through the refrigerant pipe 112. The coolant may be supplied to the freezing chamber or the freezing chamber while passing through the capillary tube 130 and the evaporator 140. The refrigerant can be supplied to the storage chamber while being lowered to about -20 ° C by the evaporator 140.

At this time, while the compression unit 110 is driven to circulate the refrigerant through the refrigeration cycle, the water contained in the inner side 172 may stop or flow.

For example, if the user does not need to take water by using the dispenser 40 or if it is not necessary to generate ice in the ice maker 26, the flow path of the flow control valve 33 is kept closed , The water supply valve (16) also closes the flow path, so that the water stops at the inner side part (172).

However, since the inner part 172 is filled with water, heat exchange may be performed between the inner part 172 and the outer part 174.

On the other hand, if it is necessary for the user to take water by using the dispenser 40 or to generate ice in the ice maker 26, the flow path of the flow control valve 33 is opened and the water supply valve 16 Open the channel. Therefore, water is introduced into the inner part 172 from the external water supply source 10.

Accordingly, a water flow is generated in the inner side portion 172, and heat exchange is performed while water and the refrigerant flow separately in the heat exchange portion 170, so that the refrigerant passing through the heat exchange portion 170 can be cooled.

Of course, the flow control valve 33 may supply water to the dispenser 40 and the ice-maker 26 at the same time, or may supply water only to the dispenser 40 and the ice-maker 26. In both of the above cases, the flow path of one side of the flow control valve 33 is opened and the flow path of the water supply valve 16 is opened, so that a flow of water can be generated in the inside part 172.

Further, even when the compression unit 110 is not driven, the user needs to take water by using the dispenser 40 or to generate ice in the ice maker 26, . In this case, a water flow is generated in the inner side part 172, so that the refrigerant stored in the outer side part 174 can be cooled, and the water in the inner side part 172 in which the temperature is substantially raised can be cooled Can be replaced with water in the external water source (10). Therefore, the operation efficiency of the refrigerator can be improved.

The inner part 172 and the outer part 174 are brought into contact with each other at a plurality of points by surface contact so that the water having passed through the inner part 172 can efficiently cool the refrigerant passing through the outer part 174 have.

In the present invention, the heat exchanging unit 170 was used to obtain an improvement in power consumption of about 8.5%. Specifically, when the heat exchanger is not adopted, 62.2 watts (W) is required to implement the refrigeration cycle. However, when the heat exchanger is employed, 56.9 watts (W) is consumed to implement the refrigeration cycle.

FIG. 6 is a view showing a machine room configuration in which FIG. 2 is implemented differently, and FIG. 7 is a perspective view of FIG. This will be described below with reference to Figs. 6 and 7. Fig. In FIGS. 6 and 7, in order to simplify the drawing, piping and other unnecessary structures for moving the refrigerant are omitted and simplified.

6 is different from the above-described embodiment in that the heat exchanging part 170 is installed in a closed space in which the foaming agent of the main body 1 is foamed, not in the machine room 2, and the other parts are the same Do. Therefore, in the present embodiment, the portions to which the technical contents of the above-described embodiments are applicable will be omitted and the differences will be mainly described.

A first water supply hose 52 for supplying water to the heat exchanging unit 170 and a part of the refrigerant pipe 112 for guiding the refrigerant to the heat exchanging unit 170; A part of the second water supply hose 57 is installed together in the closed space in which foaming by the foaming agent is performed.

In the present embodiment, since the outer side portion 174 is not exposed to the inside of the machine room, the outer side portion 174 is not cooled by convection and air inside the machine room. However, since the inner side portion 172 through which the water passes is installed in the closed space, the cold air caused by the water does not cool the inside of the machine room 2, and the more the cooling medium passing through the outer side portion 174 is cooled Part can be used.

8 is a view illustrating a refrigeration cycle according to another embodiment of the present invention. This will be described below with reference to FIG.

8 differs from the embodiment of FIG. 8 only in that the heat exchanger 170 is installed in the refrigerant pipe 114 which is drawn out of the condenser 120 and introduced into the capillary tube 130, The same configuration and action as those of the first embodiment can be achieved.

Of course, since the refrigerant pipe 114 is a pipe through which the refrigerant is discharged from the condenser 120, the temperature of the refrigerant may be lower than the refrigerant pipe 112 entering the condenser 120. In this case, there may be a disadvantage that the temperature of the refrigerant is lowered by the water, but it may be advantageous that the temperature of the water passing through the heat exchanging part 170 is relatively small, .

The heat exchange unit 170 implemented in FIG. 8 may be installed inside the machine room 2, but may be installed in a closed space in the main body 1 where the foaming agent is foamed, not inside the machine room 2 .

The first water supply hose 52 and the second water supply hose 57 are installed in the heat exchange unit 170 so that water can be drawn into or drawn out from the heat exchange unit 170. Therefore, the description of the heat exchange between the refrigerant and water in the heat exchanging unit 170 is the same as that of the above embodiment.

That is, since the present embodiment also operates in the same manner as the above-described embodiment, redundant contents will be omitted for the sake of convenience.

9 is a view illustrating a refrigeration cycle according to another embodiment of the present invention. This will be described below with reference to FIG.

In another embodiment of the present invention, unlike the embodiment of FIG. 1, the compression section comprises two compression sections. Except for the difference that the compression section is composed of two, the same as the embodiment described with reference to FIG. 1, the description of the overlapping sections is omitted.

That is, the compression unit includes a first compression unit 111 for primarily compressing the refrigerant guided by the evaporator 140, and a condenser unit 120 for compressing the refrigerant compressed by the first compression unit 111, And a second compression unit 114 for guiding the second compression unit 114 to the second compression unit 114.

After the refrigerant is compressed by the first compression unit 111, the refrigerant is further compressed while passing through the second compression unit 114, so that the gaseous refrigerant compressed by the condensing unit 120 can be supplied. Since the refrigerant passes through the second compression section 114 and the pressure is increased, the temperature of the refrigerant guided from the second compression section 114 to the condensation section 20 is located in another component of the refrigeration cycle .

Therefore, the heat exchanging unit 170 may be installed in the refrigerant pipe 112 having a relatively high temperature to lower the temperature of the refrigerant through heat exchange between water and the refrigerant, thereby improving the efficiency of the refrigerating cycle as a whole.

It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10: External water supply source 16: Water supply valve
51: Connector 52: First water supply hose
57: Second water supply hose
110: compression section 120: condensation section
170: Heat exchanger
172: medial portion 174:

Claims (15)

A compression unit for compressing the refrigerant;
A condenser for condensing the refrigerant passing through the compression unit;
A capillary unit for lowering the temperature and pressure of the refrigerant passing through the condensing unit;
An evaporator for evaporating the refrigerant passing through the capillary portion;
A heat exchanger for exchanging heat with the refrigerant pipe entering the condenser or coming out of the condenser; And
And a water supply valve for supplying water to the heat exchanging unit,
Wherein the heat exchanging unit lowers the temperature of the refrigerant passing through the inside of the refrigerator. The method according to claim 1,
Wherein the water supply valve is connected to an external water supply source to supply or block water supplied from an external water supply source to the inside of the refrigerator. The method according to claim 1,
And the water passing through the heat exchanging unit is supplied to a dispenser or an ice maker. The method of claim 3,
Wherein when the water is supplied to the dispenser or the icemaker, the flow path of the water supply valve is opened, and the water in the heat exchange unit is moved. The method of claim 3,
Wherein when the water is supplied to one of the dispenser and the ice maker, the flow path of the water supply valve is opened, and water in the heat exchange unit is moved. The method of claim 3,
And a flow control valve for guiding water to move the water passed through the heat exchanger to the dispenser or the ice maker. The method according to claim 6,
And when the flow path of the flow control valve is opened, the flow path of the water supply valve is also opened. The method according to claim 1,
Wherein the flow of water in the heat exchange unit is independent of the flow of the refrigerant in the heat exchange unit. The method according to claim 1,
The heat exchanger includes an outer portion through which the refrigerant passes,
Comprising a medial portion through which water passes,
And the outer side portion is provided so as to surround the inner side portion. 10. The method of claim 9,
Wherein the outer side and the inner side have the same center. 10. The method of claim 9,
And the refrigerant guided to the outer side portion is drawn perpendicularly to the outer side portion and is discharged. 10. The method of claim 9,
Wherein the heat exchanger is installed in a machine room. 13. The method of claim 12,
The outer side portion is exposed in the machine room provided with the compression portion,
Wherein heat exchange is performed with air inside the machine room. 10. The method of claim 9,
Wherein the heat exchanger is installed in a closed space in the main body where foaming by the foaming agent is performed. The method according to claim 1,
Wherein the compression unit comprises:
A first compression unit for primarily compressing the refrigerant guided by the evaporator,
And a second compression unit that secondarily compresses the refrigerant compressed by the first compression unit and guides the refrigerant to the condensation unit.

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