KR20200065180A - Water cooling type condenser and System for cooling and heating of electronic vehicle using the same - Google Patents

Abstract

The present invention provides a water-cooling condenser capable of improving cooling efficiency. The water-cooling condenser is used in an electric vehicle and comprises: a condensing unit including a plurality of first refrigerant flow plates being stacked and allowing a refrigerant to flow to an inner layer and a plurality of first coolant flow plates being alternately stacked with the first refrigerant flow plates and allowing a coolant to flow thereinto; a supercooling unit including a plurality of second refrigerant flow plates being stacked and allowing a refrigerant to flow to an inner layer and a plurality of second coolant flow plates being alternately stacked with the second refrigerant flow plates and allowing a coolant to flow thereinto; a receiver drier to remove humidity and impurities included in the refrigerant condensed by the condensing unit to supply the refrigerant to the supercooling unit; a first coolant supply path to supply a coolant to the second coolant flow plates; a second coolant supply path to supply a portion of a coolant supplied through the first coolant supply path to some of the plurality of first coolant flow plates; and a third coolant supply path to supply a coolant to the remaining first coolant flow plates to which a coolant is not supplied through the second coolant supply path. The coolant supplied through the first coolant supply path has a lower water temperature than the coolant supplied through the third coolant supply path. The present invention also provides a cooling and heating system for an electric vehicle using a water-cooling condenser with an integrated condensing region and supercooling region.

Description

Water cooling type condenser and system for cooling and heating of electronic vehicle using the same}

The present invention relates to a water-cooled condenser and an air-conditioning and cooling system for an electric vehicle using the same, and more specifically, a water-cooled condenser to supply cooling water at a lower temperature to the condensing part and the super-cooling part to simultaneously or sequentially cool the condensing part and the supercooling part. It relates to an air conditioning system for an electric vehicle using the same.

In general, the air conditioner system of a vehicle maintains a comfortable indoor environment by maintaining the temperature of the vehicle interior at an appropriate temperature regardless of the external temperature change.

The air conditioner system evaporates refrigerant while evaporating the expanded refrigerant in a compressor that compresses the refrigerant, a condenser that condenses and liquefies the compressed refrigerant in the compressor, and an expansion valve and an expansion valve that rapidly condenses and liquefies the liquefied refrigerant. The main components include an evaporator that cools air blown into the room using latent heat.

Meanwhile, electric components such as drive motors, motor controllers, and power converters used in electric vehicles are cooled to prevent heat and maintain durability, and water-cooled coolers using cooling water are generally used.

In the case of an electric vehicle, since the electric parts need to be cooled by water cooling instead of the engine, the electric radiator is installed instead of the conventional engine radiator, thereby dissipating heat from the cooling water by passing outside air or driving wind sucked by the cooling fan through the electric radiator. .

Then, the cooled cooling water is allowed to heat exchange with the refrigerant, and the refrigerant can be used for cooling or heating and cooling the battery of the electric vehicle.

At this time, a condenser may be used for heat exchange of the refrigerant.

Here, the condenser cools the compressed high-temperature, high-pressure gas refrigerant while driving, through external air flowing into the vehicle, and condenses it into a low-temperature liquid refrigerant.

The condenser is usually connected through a receiver dryer and a pipe provided to improve condensation efficiency through gas-liquid separation and to remove moisture and impurities in the refrigerant.

1 is a perspective view showing an example of the configuration of a water-cooled condenser according to the prior art, and FIG. 2 is a view showing the movement of the coolant and the coolant in the water-cooled condenser shown in FIG. 1. In FIG. 2, the illustration of the connection bracket is omitted to explain the movement of the coolant and the coolant.

1 and 2, the condenser 1 according to the prior art may include a condensation unit 10, a supercooling unit 20, and a receiver dryer 30.

The condensing unit 10 condenses the refrigerant supplied through the refrigerant supply pipe 14 using low-temperature cooling water supplied from the outside through the first cooling water supply path 12, and the used cooling water is the first cooling water discharge pipe 13 ).

The condensation unit 10 has a structure in which a plurality of cooling water flow plates 11a and refrigerant flow plates 11b are alternately stacked.

The supercooling unit 20 supercools the condensed refrigerant using a coolant having a low temperature supplied from the outside through the second cooling water supply path 22 and discharges it through the refrigerant discharge pipe 24. At this time, the used cooling water is discharged through the second cooling water discharge pipe 23.

The supercooling unit 20 has a structure in which a plurality of cooling water flow plates 21a and refrigerant flow plates 21b are alternately stacked.

In addition, it can be seen that the receiver dryer 30 is connected to remove dust and moisture contained in the gaseous refrigerant among refrigerants condensed in the condensing unit 10 and discharge it to the supercooling unit 20.

Here, if the condensing unit 10 does not sufficiently condense the refrigerant, the amount of the refrigerant in the gas phase increases, and the degree of pressure drop in the condenser increases, and the degree of temperature decrease of the liquid refrigerant in the supercooling portion decreases There is a problem that the cooling efficiency is lowered.

As a prior art for the present invention, Patent Publication No. 2013-0064602 can be exemplified.

The present invention is to solve the above problems, by supplying some of the low-temperature cooling water supplied to the supercooling section to the condensing section so that the refrigerant condensation in the condensing section is made, a water-cooled condenser capable of improving cooling efficiency and an electric vehicle using the same It is an object of the present invention to provide a heating and cooling system.

The present invention provides a heating and cooling system for an electric vehicle using a water-cooled condenser for a vehicle in which a condensation zone and a supercooling zone are integrally formed.

In order to achieve the above object, the present invention, as a water-cooled condenser used in an electric vehicle, the refrigerant flows into the inner layer and a plurality of stacked first refrigerant flow plate and cooling water flow inward and alternately with the first refrigerant flow plate Condensation unit including a plurality of first cooling water flow plate laminated to; A supercooling unit including a second refrigerant flow plate in which a refrigerant flows into the inner layer and a plurality of layers are stacked, and a plurality of second cooling water flow plates stacked alternately with the second refrigerant flow plate; A receiver dryer that removes moisture and impurities contained in the refrigerant condensed in the condensing unit and supplies it to the supercooling unit; A first cooling water supply channel supplying cooling water to the second cooling water flow plate; A second cooling water supply path for supplying a portion of the cooling water supplied through the first cooling water supply path to a part of the plurality of first cooling water flow plates, and the remaining first cooling water for which cooling water is not supplied through the second cooling water supply path A third cooling water supply path for supplying cooling water to the flow plate, and the cooling water supplied through the first cooling water supply path provides a water-cooled condenser having a lower water temperature than the cooling water supplied through the third cooling water supply path.

The condensing unit may include a first unit condensing unit receiving cooling water through the first cooling water supply channel and a second unit condensing unit receiving cooling water through the third cooling water supply channel.

The number of the first cooling water flow plates included in the first unit condensing portion may be 10 to 35% of the total number of the first cooling water flow plates. It may be disposed between the condensing unit and the supercooling unit, and on one side may further include a connection unit connected to the receiver dryer to provide a movement path of the refrigerant and the cooling water.

The connection part, one surface is made of a rectangular shape in contact with one surface of the first unit condensing unit, the first and second unit cooling water supply holes included in the second cooling water supply channel are formed at both ends, and the first unit condensation A first connection plate through which a first unit refrigerant movement hole providing a movement path of the refrigerant moving through a portion is formed, and one surface is formed in a rectangular shape in contact with the other surface of the second connection plate, and at both ends of the first connection plate The third and fourth unit cooling water supply holes included in the cooling water supply path are formed, and at one end, a second unit refrigerant moving hole is provided to provide a moving path of the refrigerant moving through the first unit condensing unit. The connecting plate and one surface are formed in a rectangular shape in contact with the other surface of the second connecting plate, and the first and second guide grooves for performing refrigerant flow in and out of the refrigerant inlet hole and the refrigerant outlet hole are formed at one side. 2 The third connecting plate in which the fifth and sixth unit cooling water supply holes included in the cooling water supply passage are formed, and one surface is formed in a rectangular shape contacting the other surface of the third connecting plate, and the second cooling water is supplied to both ends. A fourth connecting plate in which seventh and eighth unit cooling water supply holes included in the furnace are formed, and a third unit refrigerant movement hole is formed, which provides a movement path of the refrigerant moving through the first unit condensing part. And, one surface is in contact with the other surface of the fourth connecting plate, the other surface is made of a rectangular shape in contact with one surface of the subcooling part, the ninth and tenth unit cooling water supply holes included in the second cooling water supply path is formed at both ends It may include a 51th connection plate in which a fourth unit refrigerant movement hole is provided to provide a movement path of the refrigerant moving through the first unit condensation unit.

The first unit cooling water supply hole and the tenth unit cooling water supply hole may be formed in a manor shape.

The second connecting plate protrudes from both ends of the first connection rib, which is respectively inserted into the refrigerant inlet hole and the refrigerant outlet hole, a first connection bracket protruding from the other end and fixed to the vehicle body, and of the first connection rib It may include a first fixing jaw protruding to a certain height on one side of the bottom surface.

The third connecting plate is protruded on both sides of the inlet of the first guide groove and the second guide groove, and is inserted into the refrigerant inlet hole and the refrigerant outlet hole, and the insertion guide rib is fixed to one side of the insertion guide rib. It may include a second fixed jaw protruding to the height.

The fourth connecting plate protrudes from both ends of one side, a second connecting rib connected to the receiver dryer, a second connecting bracket protruding from the other end and fixed to the vehicle body, and fixed to one bottom surface of the second connecting rib A third fixed jaw protruding to the height may be further included.

The bottom portion of the first guide groove may communicate with the second unit refrigerant moving hole, and the bottom portion of the second guide groove may communicate with the third unit refrigerant moving hole.

The separation distance between the first connection rib and the second connection rib may correspond to the separation distance between the first and second guide grooves.

The height of the first to third fixing jaws may be the same.

The lengths of the first connection rib and the second connection rib may correspond to the lengths of the refrigerant inlet hole and the refrigerant outlet hole.

The length of the first connecting rib and the second connecting rib may correspond to the separation distance of the insertion guide rib.

The thickness of the connecting plate may correspond to the width of the refrigerant inlet hole and the refrigerant outlet hole.

Each of the first to fifth connecting plates may have a thickness of 2 mm or more.

In order to achieve the above object, the present invention, the water-cooled condenser according to any one of claims 1 to 17; A refrigerant circulation line that circulates refrigerant through an electric compressor, an indoor condenser, a first expansion valve, and an evaporator so that heating and cooling of the vehicle interior are selectively performed; A first cooling water circulation line that selectively circulates cooling water to cool the battery; A second cooling water circulation line that selectively circulates cooling water to cool the electrical components; A first refrigerant branch line in which one side is branched from the inlet end of the first expansion valve, and the other side is connected to the inlet end of the electric compressor to selectively flow refrigerant; A second expansion valve provided on the first refrigerant branch line and selectively opened and closed to expand and discharge the refrigerant flowing through the first refrigerant branch line; Among the first refrigerant branch lines, provided at the rear of the second expansion valve, accommodates the refrigerant expanded in the second expansion valve, and coolant flowing through the first cooling water circulation line and the second cooling water circulation line, respectively, with the refrigerant. A heat exchanger chiller; A two-way valve provided between the indoor capacitor and the first expansion valve among the refrigerant circulation lines to open and close the refrigerant circulation line between the indoor capacitor and the first expansion valve; A second refrigerant branch line branched from one side of the inlet end of the 2-way valve in the refrigerant circulation line, and the other side connected to an outlet end side of the 2-way valve in the refrigerant circulation line; A first cooling water branch line in which one side of the first cooling water circulation line is branched from the outlet end of the battery, and the other side is connected to the inlet end side of the battery; In the second cooling water circulation line, one side is branched from the outlet end side of the electrical appliance, and the other side is a second cooling water separator line connected to the inlet end of the electrical appliance; and the water-cooled condenser includes the second refrigerant branch. Electricity that is superimposed on the line, the first cooling water branch line, and the second cooling water branch line, and selectively exchanges refrigerant and cooling water flowing along the second refrigerant branch line, the first cooling water branch line, and the second cooling water branch line. Provide an air conditioning system for automobiles.

The present invention as described above, it is possible to improve the cooling efficiency by supplying a portion of the low-temperature cooling water supplied to the sub-cooling unit to the condensing unit so that the refrigerant condensation in the condensing unit.

1 is a perspective view showing an example of the configuration of a water-cooled condenser according to the prior art.
2 is a view showing the movement of the coolant and the coolant in the water-cooled condenser shown in FIG. 1.
Figure 3 is a front view showing the configuration of a water-cooled condenser according to an embodiment of the present invention.
4 is a view showing the movement of the coolant and the coolant in the water-cooled condenser shown in FIG. 3.
5 is a view showing the arrangement state of the separation plate used in the present invention.
6 is an exploded perspective view showing an example of a configuration of a connecting portion used in the present invention.
7 is a view showing the connection of the receiver dryer and the connecting portion used in the present invention.
8 is a view showing cooling water and refrigerant movement in a water-cooled condenser according to an embodiment of the present invention.
9 is a view showing the configuration of an air conditioning system for an electric vehicle according to an embodiment of the present invention.
FIG. 10 is a view showing a circulation process of a refrigerant in a cooling mode of an air conditioning system for an electric vehicle according to an embodiment of the present invention illustrated in FIG. 9.
FIG. 11 is a view showing a circulating process of the refrigerant in the cooling and battery cooling modes of the heating and cooling system for an electric vehicle according to an embodiment of the present invention illustrated in FIG. 9.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a front view showing the configuration of a water-cooled condenser according to an embodiment of the present invention, and FIG. 4 is a view showing the movement of the refrigerant and the coolant in the water-cooled condenser shown in FIG. 3.

3 and 4, the water-cooled condenser 1000 according to an embodiment of the present invention includes a condensing unit 1110, a supercooling unit 1120, a first cooling water supply channel 1122A, and a second cooling water supply channel ( 1122B) and a third cooling water supply path 1122C.

In addition, the water-cooled condenser 1000 according to an embodiment of the present invention is disposed between the condensing unit 1110 and the supercooling unit 1120, connected to the receiver dryer 1130 on one side, and the condensing unit 1110 It further includes a connecting portion 1140 that provides a cooling water movement path between the subcooling units 1120 and a refrigerant moving path between the condensing unit 1110, the subcooling units 1120, and the receiver dryer 1130.

The condensing unit 1110 condenses and discharges a high-temperature refrigerant using cooling water flowing from the outside.

The condensing unit 1110 may be formed in a rectangular parallelepiped shape having a predetermined size by stacking a plurality of first cooling water flow plates 1111a and 1st refrigerant flow plates 1111b, which will be described later.

The first cooling water flow plate 1111a is a rectangular plate shape having a predetermined size, and cooling water may flow therein.

The first refrigerant flow plate 1111b is a rectangular plate shape having a predetermined size, and the refrigerant can flow therein.

The first coolant flow plate 1111a and the first refrigerant flow plate 1111b may have the same size and shape.

The first coolant flow plate 1111a and the first refrigerant flow plate 1111b are stacked in plural, and may be alternately stacked.

The coolant and the coolant flowing inside the first coolant flow plate 1111a and the first coolant flow plate 1111b may flow parallel to each other or in opposite directions.

A first refrigerant supply pipe 1114 is disposed on one side of the plurality of stacked first refrigerant flow plates 1111b to supply the refrigerant to be condensed. The refrigerant supplied to the condensing unit 1110 may be condensed by cooling water supplied from the outside, and then supplied to the receiver dryer 1130.

The supercooling unit 1120 discharges by subcooling the temperature of the condensed refrigerant using cooling water flowing from the outside.

The supercooling unit 1120 may be formed in a rectangular parallelepiped shape having a predetermined size by stacking a plurality of second cooling water flow plates 1121a and second refrigerant flow plates 1121b, which will be described later.

The second cooling water flow plate 1121a is a rectangular plate shape having a predetermined size, and cooling water may flow therein.

The second refrigerant flow plate 1121b is a rectangular plate shape having a predetermined size, and the refrigerant can flow therein.

The second refrigerant flow plate 1121b may be supplied with refrigerant from which moisture and dust are removed from the receiver dryer 1130.

The second coolant flow plate 1121a and the second coolant flow plate 1121b may have the same size and shape as each other.

The second cooling water flow plate 1121a and the second refrigerant flow plate 1121b are stacked in plural, and may be alternately stacked.

The first cooling water supply path 1122 supplies low-temperature cooling water W1 through an upper portion of one side of the second cooling water flow plate 1121a included in the supercooling unit 1120. The supplied cooling water W1 may be discharged through one lower portion of the supercooling unit 1120 by supercooling the refrigerant flowing through the second refrigerant flow plate 1121b.

Meanwhile, some of the cooling water supplied to the supercooling unit 1120 may be supplied to the condensing unit 1110.

To this end, the present invention includes a second cooling water supply path 1122B.

One end of the second cooling water supply passage 1122B is connected to the inflow side of the first cooling water supply passage 1122A, and the other end is connected to the discharge side of the first cooling water supply passage 1122A. The second cooling water supply path 1122B may supply cooling water to some of the first cooling water flow plates 1111a among the plurality of first cooling water flow plates 1111a included in the condensation unit 1110.

Here, the condensing unit 1110 is a first unit that receives cooling water through the second cooling water supply channel 1122B, and a second unit that receives cooling water through the third cooling water supply channel 1122C, which will be described later. Condensation unit 1110B. Here, the second cooling water supply path 1122B performs cooling water supply and outflow to the first unit condensation unit 1110A through the connection unit 1140, which will be described later.

Here, the third cooling water supply passage 1122C is the remaining first cooling water flow that does not receive cooling water through the second cooling water supply passage 1122B among the plurality of first cooling water flow plates 1111a included in the condensation unit 1110. Cooling water W2 is supplied to the plate 1111a.

The temperature of the cooling water W1 supplied through the first cooling water supply path 1122A may be lower than the temperature of the cooling water W2 supplied through the third cooling water supply path 1122C.

Since the second cooling water supply channel 1122B is supplied with cooling water through the first cooling water supply channel 1122A, the first unit condensation unit 1110A may be disposed on one side of the supercooling unit 1120.

In this case, the number of the second cooling water flow plates 1121a included in the first unit condensation unit 1110A may be 10 to 35% of the second cooling water flow plates 1121a included in the condensation unit 1110.

For example, assuming that the number of the first refrigerant flow plate 1111b and the first coolant flow plate 1111a included in the condensation unit 1110 is 15, respectively, the first refrigerant flow plate 1111b and the first Since the cooling water flow plates 1111a are alternately arranged, the number of the first cooling water flow plates 1111a receiving the cooling water through the first cooling water supply path 1122A may be five.

As described above, when the coolant W1 having a lower temperature is supplied to the first unit condensation unit 1110A included in the condensation unit 1110, the condensation efficiency to the condensation unit 1110 may be increased.

5 is a view showing an arrangement state of the separation plate 1110C used in the present invention.

Referring to FIG. 5, a rectangular separator plate 1110C is disposed between the first unit condensing unit 1110A and the second unit condensing unit 1110B to condense the first unit condensing unit 1110A and the second unit condensing unit. It is possible to distinguish the portion 1110B.

On the separation plate 1110C, a coolant movement hole 1112 may be formed at a corner portion to provide a path through which the refrigerant that has passed through the first refrigerant flow plate 1111b moves to the first unit condensation unit 1110A.

The connecting portion 1140 is formed in a plate shape having a predetermined size. The connection part 1140 is disposed between the condensation part 1110 and the supercooling part 1120. The condensing portion 1110 and the supercooling portion 1120 are disposed in close contact with each other on both sides of the connection portion 1140.

The connection unit 1140 provides a movement path of the refrigerant so that the refrigerant discharged from the condensation unit 1110 flows into the receiver dryer 1130.

6 is an exploded perspective view showing an example of a configuration of a connecting portion used in the present invention.

Referring to FIG. 6, the connecting portion 1140 includes first to fifth connecting plates 1140A, 1140B, 1140C, 1140D, and 1140E.

The first connecting plate 1140A is formed in a rectangular plate shape having a predetermined horizontal and vertical length and a predetermined thickness.

One surface of the first connecting plate 1140A is in contact with one surface of the first unit condensing unit 1110A.

On the first connecting plate 1140A, a first unit refrigerant movement hole 1141A is provided at one end to provide a movement path of the refrigerant moving through the first unit condensation unit 1110A, and the second cooling water is supplied to both ends. First and second unit cooling water supply holes 1142A and 1143A constituting the furnace 1122B may be formed, respectively.

Here, in order to prevent the coolant supply path from overlapping with other components when the coolant movement path and the coolant movement path are arranged, the second unit coolant supply hole 1143A may be formed in a long shape. If necessary, the first unit cooling water supply hole 1142A may be formed in a manor shape.

The second connecting plate 1140B is formed in a rectangular plate shape having a predetermined horizontal and vertical length.

One surface of the second connecting plate 1140B is in contact with the other surface of the first connecting plate 1140A, and the other surface of the second connecting plate 1140B is in contact with one surface of the third connecting plate 1140C, which will be described later.

On the second connection plate 1140B, a second unit refrigerant movement hole 1141B is provided in communication with the first unit refrigerant movement hole 1141A to provide a movement path of the refrigerant, and the second cooling water supply path 1122B is provided at both ends. ) May include third and fourth unit cooling water supply holes 1142B and 1143B, respectively. The third and fourth unit coolant supply holes 1142B and 1143B are connected to the first and second unit coolant supply holes 1142A and 1143A, respectively.

The first connection ribs 1144B connected to one side of the receiver dryer 1130 protrude from both ends of one side of the second connection plate 1140B, respectively. The first connection ribs 1144B may be spaced apart from each other by a certain distance. The separation distance of the first connection rib 1144B corresponds to the separation distance of the refrigerant inlet hole 1132 and the refrigerant discharge hole 1134.

The first connecting rib 1144B is a rectangular shape having a predetermined width and length, and is fixed to one side of the receiver dryer 1130. Here, it is preferable that the long side of the first connecting rib 1144B is fixed to one side of the receiver dryer 1130 to make the fixing with the receiver dryer 1130 more firm.

At this time, the second fixing jaw 1145B having a predetermined height protrudes from the bottom of both sides of the first connecting rib 1144B.

The second fixing jaw 1145B allows the connecting plate 1140 and the receiver dryer 1130 to be spaced a predetermined distance when the connecting plate 1140 is connected to the receiver dryer 1130.

On the other side of the second connecting plate 1140B, a rectangular first connecting bracket 1148B protruding the connecting plate 1140 to be connected to a predetermined position of a vehicle body (not shown) protrudes. In this embodiment, the first connecting bracket 1148B protrudes in a direction orthogonal to the second connecting plate 1140B, but the protruding angle of the first connecting bracket 1148B may be variously set according to a user's need.

The third connecting plate 1140C is formed in a rectangular shape having a predetermined horizontal and vertical length. One surface of the third connecting plate 1140C is in contact with the other surface of the second connecting plate 1140B.

The size and shape of the third connecting plate 1140C corresponds to the size and shape of the second connecting plate 1140B.

The fifth and sixth unit cooling water supply holes 1142C and 1143C constituting the second cooling water supply passage 1122B may be formed at both ends of the third connecting plate 1140C, respectively. The fifth and sixth unit coolant supply holes 1142C and 1143C are connected to the third and fourth unit coolant supply holes 1142B and 1143B, respectively.

At both ends of the third connecting plate 1140C, first and second guide grooves 1144C and 1145C for guiding the movement of the refrigerant are formed.

The first and second guide grooves 1144C and 1145C are formed at a predetermined depth from one side of the third connecting plate 1140C toward the other side. At this time, the first and second guide grooves 1144C and 1145C may be formed in the same size and shape.

The first and second guide grooves 1144C and 1145C may be spaced apart from each other by a predetermined distance. The separation distances of the first and second guide grooves 1144C and 1145C may correspond to the separation distances of the first connection ribs 1144B.

Here, the bottom portion of the first guide groove 1144C is connected to the second unit refrigerant moving hole 1141B of the second connection plate 1140B, and the bottom portion of the second guide groove 1145C is a fourth connection plate (described later) 1140D) may be connected to the third unit refrigerant movement hole 1141D.

To facilitate connection between the first and second guide grooves 1144C and 1145C and the refrigerant inflow hole 1132 and the refrigerant discharge hole 1134 of the receiver dryer 1130, the first and second guide grooves 1144C , 1145C), the insertion guide ribs 1146C may protrude in parallel to each other toward each hole.

At this time, the second fixing jaw 1145C having a predetermined height protrudes from the bottom of one side of the insertion guide rib 1146C.

The second fixing jaw 1145C allows the connection plate 1140 and the receiver dryer 1130 to be spaced a predetermined distance when the connection plate 1140 is connected to the receiver dryer 1130.

The fourth connecting plate 1140D is formed in a rectangular shape having a predetermined horizontal and vertical length. One surface of the fourth connecting plate 1140D is in contact with the other surface of the third connecting plate 1140C. The size and shape of the fourth connecting plate 1140D corresponds to the size and shape of the third connecting plate 1140C.

A third unit refrigerant movement hole 1141D is formed at one end of the fourth connection plate 1140D to communicate with the bottom of the second guide groove 1145C of the third connection plate 1140C to provide a movement path of the refrigerant. Can be.

In addition, seventh and eighth unit cooling water supply holes 1142D and 1143D constituting the second cooling water supply passage 1122B may be formed at both ends of the fourth connecting plate 1140D, respectively. The seventh and eighth unit coolant supply holes 1142D and 1143D are connected to the fifth and sixth unit coolant supply holes 1142C and 1143C, respectively.

The second connecting ribs 1144D connected to one side of the receiver dryer 1130 are projected to both ends of one side of the fourth connecting plate 1140D, respectively. The second connecting rib 1144D is formed in a rectangular shape having a predetermined width and length. At this time, the size and shape of the second connection rib 1144D may be the same as the size and shape of the first connection rib 1144B.

The second connection ribs 1144D may be spaced apart from each other by a certain distance. The separation distance of the second connection rib 1144D may be the same as the separation distance of the first connection rib 1144B.

The first connection rib (1144B), the insertion guide rib (1146C) and the second connection rib (1144D) are connected to the connecting plate (1140) and the receiver dryer (1130), and the refrigerant inflow hole (1132) and refrigerant in an overlapped state. It may be inserted into the discharge hole 1134 to provide a refrigerant flow path.

At this time, a third fixing jaw 1145D having a predetermined height protrudes from the bottom of both sides of the second connecting rib 1144D.

The third fixing jaw 1145D allows the connecting plate 1140 to be spaced apart from the connecting plate 1140 and the receiver dryer 1130 when the connecting plate 1140 is connected to the receiver dryer 1130.

The heights of the first to third fixing jaws 1145B, 1145C, and 1145D may be set to be the same as each other.

In addition, a rectangular second connecting bracket 1148D protruding from the other side of the fourth connecting plate 1140D so that the connecting plate 1140 is connected to a predetermined position on the vehicle body (not shown). In this embodiment, the second connecting bracket 1148D protrudes in a direction orthogonal to the fourth connecting plate 1140D, but the protruding direction may be opposite to the protruding direction of the first connecting bracket 1148B.

The protrusion angle of the second connection bracket 1148D may be variously set according to a user's needs.

On the fourth connecting plate 1140D, the holder 1149D hanging on the side surface of the receiver dryer 1130 protrudes in a direction opposite to the second connecting bracket 1148D. The holder 1149D may wrap the outer circumference of the receiver dryer 1130 when the connection plate 1140 and the receiver dryer 1130 are connected, and thus make the connection state more firm.

The fifth connecting plate 1140E is formed in a rectangular shape having a predetermined horizontal and vertical length. One surface of the fifth connecting plate 1140E is in contact with the other surface of the fourth connecting plate 1140D. The size and shape of the fifth connecting plate 1140E corresponds to the size and shape of the fourth connecting plate 1140D.

A fourth unit refrigerant movement hole 1141E may be formed at one end of the fifth connection plate 1140E to be connected to the third unit refrigerant movement hole 1141D to provide a movement path of the refrigerant.

At both ends of the fifth connecting plate 1140E, ninth and tenth unit cooling water supply holes 1142E and 1143E constituting the second cooling water supply passage 1122B are formed, respectively. The ninth and tenth unit coolant supply holes 1142E and 1143E may be connected to the seventh and eighth unit coolant supply holes 1142D and 1143D, respectively.

Here, in order to prevent the coolant supply path from overlapping with other components when the coolant movement path and the coolant movement path are arranged, the tenth unit coolant supply hole 1143E may be formed in a long form. If necessary, the ninth unit cooling water supply hole 1142E may be formed in a manor shape.

The first to fifth connecting plates 1140A, 1140B, 1140C, 1140D, and 1140E may have the same thickness. At this time, the thickness of the first to fifth connecting plates 1140A, 1140B, 1140C, 1140D, 1140E may be 2 mm or more.

7 is a view showing the connection of the receiver dryer and the connecting portion used in the present invention.

Referring to FIG. 7, the receiver dryer 1130 is formed in a cylindrical shape having a predetermined diameter and length. The receiver dryer 1130 is disposed vertically, and the condensing unit 1110 and the supercooling unit 1120 can be connected to a refrigerant through a connecting unit 1140, which will be described later.

The refrigerant inlet hole 1132 may be disposed on the lower side of the receiver dryer 1130, and the refrigerant discharge hole 1134 may be disposed on the upper side.

After the connecting ribs of the connecting portion 1140 overlap each other, the refrigerant is introduced into the refrigerant inlet hole 1132 and the refrigerant outlet hole 1134 to allow the refrigerant to move.

The moving path of the refrigerant and the coolant of the water-cooled condenser configured as described above will be described.

8 is a view showing cooling water and refrigerant movement in a water-cooled condenser according to an embodiment of the present invention.

In the drawings, the illustration of the receiver dryer is omitted in order to show the moving path of the refrigerant in more detail.

8, the refrigerant is supplied through the first refrigerant supply pipe 1114 of the second unit condensation unit 1110B included in the condensation unit 1120, and the supplied refrigerant is the first unit condensation unit 1110A, It is discharged through the connecting portion 1140 and the supercooling portion 1120.

Here, the cooling water W1 supplied through the first cooling water supply path 1122A supercools the refrigerant in the subcooling unit 1120.

Then, some of the cooling water W1 supplied through the first cooling water supply channel 1122A is supplied to the first unit condensing unit 1110A through the second cooling water supply channel 1122B, and supplied to the condensing unit 1120 Refrigerant C is condensed. At this time, the cooling water W1 supplied through the second cooling water supply path 1122B may have a lower temperature than the cooling water W2 supplied through the third cooling water supply path 1122C, thereby improving the condensation rate of the refrigerant.

The water-cooled condenser configured as described above may be applied to an air conditioning system for an electric vehicle.

9 is a view showing the configuration of an air conditioning system for an electric vehicle according to an embodiment of the present invention.

9, the cooling and heating system for an electric vehicle according to an embodiment of the present invention includes a refrigerant circulation line 100, a first cooling water circulation line 200, a second cooling water circulation line 300, and a first refrigerant branch line. (400), the second expansion valve 410 and the chiller 420 are included. First, the refrigerant circulation line (100) is a motor-driven compressor (110) and an indoor capacitor ( 120), the first expansion valve 130, circulates to the evaporator 140.

In addition, the first cooling water circulation line 200 selectively circulates cooling water to cool the battery B, and the second cooling water circulation line 300 selectively circulates cooling water so that the electrical equipment PE is cooled.

The refrigerant circulation line 100, the first cooling water circulation line 200, and the second cooling water circulation line 300 with reference to FIG. 9 are as follows.

First, an electric compressor 110 is provided on the refrigerant circulation line 100, and the electric compressor 110 is driven by an externally applied power source according to a driving signal transmitted from a control unit of an air-conditioning system to compress the introduced refrigerant. Discharge.

In addition, the indoor condenser 120 heats the air supply by dissipating heat from the supply air provided to the vehicle interior by heat exchange with the supplied air, and the evaporator 140 absorbs the introduced refrigerant by heat exchange with the air supply provided to the vehicle interior to supply air. To cool.

At this time, the electric compressor 110 and the indoor condenser 120 are connected to each other by the refrigerant circulation line 100, the refrigerant circulation line 100 is connected to one side of the discharge end of the electric compressor 110, the other side is the indoor capacitor ( Connected to the inlet end of 120), the refrigerant compressed by the electric compressor 110 flows into the indoor condenser 120.

The refrigerant flowing into the indoor condenser 120 heats the air supply by dissipating heat to the air supply by heat exchange with the air supply provided from the indoor condenser 120 to the car interior, and the heated air supply is provided to the car interior to heat the car interior. .

In addition, the indoor condenser 120 and the evaporator 140 are connected to the refrigerant circulation line 100, the refrigerant circulation line 100 is connected to the outlet end of the indoor condenser 120 and one side, the other side of the evaporator 140 Connected to the inlet end, the refrigerant that has passed through the indoor condenser 120 flows into the evaporator 140.

At this time, the first expansion valve 130 is provided on the refrigerant circulation line 100, and the first expansion valve 1300 selectively opens and closes the refrigerant circulation line 100 according to a signal for each operation mode transmitted from the control unit of the air conditioning system. Then, the refrigerant flowing along the refrigerant circulation line 100 is expanded to allow the expanded refrigerant to flow into the evaporator 140.

After being expanded by the first expansion valve 130, the refrigerant flowing into the evaporator 140 absorbs the air supply by heat exchange with the air supply provided from the evaporator 140 to the vehicle interior to cool the air supply, and the cooled air supply It is provided as a vehicle interior, and cooling of the vehicle interior is achieved.

Here, the indoor condenser 120 and the evaporator 140 are provided inside the housing 1001 of the air conditioning unit, and a blowing means 1002 is provided at the front end of the housing 1001 of the air conditioning unit, and the rear of the air blowing unit 1002 is provided. In the evaporator 140 is provided, by driving the blowing means 1002 according to the signal for each operation mode transmitted from the control unit of the heating and cooling system, the outside air introduced from the outside of the vehicle or the inside air from the inside of the car is switched to the supply air, After passing through 140, it is blown into the rear of the vehicle interior.

In addition, the rear of the evaporator 140 is divided into a heating passage 1003 and a cooling passage 1004 by a partition wall, and a passage opening/closing door 1005 is provided at the front end of the partition wall, and signals for each operation mode transmitted from the control unit of the air conditioning system The heating passage 1003 or the cooling passage 1004 is selectively opened/closed by the rotation of the passage opening/closing door 1005.

At this time, the indoor condenser 120 is provided in the heating passage 1003, and after the supply air flowing along the heating passage 1003 is heated by heat exchange with the indoor condenser 120, it is introduced into a car interior to be heated.

In addition, a PTC heater 1006 is provided at the rear of the indoor condenser 120, and the PTC heater 1006 is selectively driven by an externally applied power source according to a signal for each operation mode transmitted from a control unit of an air conditioning system to indoor condenser. The heat is supplied to the air passing through the 120 to add heat, and the PTC heater 1006 may supplement the insufficient heat when heating the vehicle indoors in the winter season.

In addition, the accumulator 150 is disposed at the rear of the electric compressor 110 among the refrigerant circulation lines 100, and the accumulator 150 separates the introduced refrigerant into a liquid phase and a gas phase and flows only the gas phase refrigerant to the electric compressor 110. Let it flow.

In addition, a two-way valve 101 is provided between the indoor condenser 120 and the first expansion valve 130 among the refrigerant circulation lines 100, and the two-way valve 101 is operated by a control unit of an air conditioning system The refrigerant circulation line 100 between the indoor condenser 120 and the first expansion valve 130 is opened and closed according to the signal for each mode.

Here, the heating and cooling system for an electric vehicle according to an embodiment of the present invention includes a first refrigerant branch line 400, and the first refrigerant branch line 400 is branched from one side of the inlet of the first expansion valve 130. The other side is connected to the inlet of the electric compressor 110 to selectively flow the refrigerant.

In addition, a second refrigerant branch line 500 is connected to the refrigerant circulation line 100. One side of the second refrigerant branch line 500 is branched from the inlet end side of the 2-way valve 101 among the refrigerant circulation lines 100. The other side is connected to the outlet end side of the 2-way valve 101 among the refrigerant circulation lines 100, and the refrigerant leaked from the indoor condenser 120 selectively according to the opening and closing of the 2-way valve 101 is second. It flows along the refrigerant branch line (500).

In addition, a second expansion valve 410 is provided on the first refrigerant branch line 400. The second expansion valve 410 is selectively opened and closed according to a signal for each operation mode transmitted from the control unit of the air conditioning system, and the first refrigerant branch line. The refrigerant flowing through 400 expands and flows out, and a chiller 420 is provided behind the second expansion valve 410 among the first refrigerant branch lines 400, and the chiller 420 has a second expansion valve 410. ) Accommodates the expanded refrigerant, and heats the cooling water flowing along the first cooling water circulation line 200 and the second cooling water circulation line 300 with the refrigerant.

At this time, the first cooling water circulation line 200 selectively circulates cooling water so that the battery B is cooled. The first cooling water circulation line 200 includes a first water pump 210 and a water heating means 220. do.

The first water pump 210 on the first cooling water circulation line 200 forcibly flows cooling water flowing along the first cooling water circulation line 200, and the water heating means 220 is the first cooling water circulation line 200 ) To heat the cooling water flowing.

In addition, a first cooling water branch line 600 is connected to the first cooling water circulation line 200. The first cooling water branch line 600 is one side from the outflow end side of the battery B among the first cooling water circulation lines 200. This branch, the other side is connected to the inlet end side of the battery (B).

At this time, a three-way valve 230 is provided at a branching point where one side of the first cooling water branch line 600 is branched out of the first cooling water circulation line 200, according to the signal for each operation mode transmitted from the control unit of the air conditioning system 3 By changing the flow path of the way valve 230, the flow path of the cooling water is opened and closed.

The first coolant branch line 600 includes a third water pump 610, a first coolant bypass line 620, and a battery radiator 630. The third water pump 610 is a first coolant branch line ( Provided on 600), the cooling water flowing along the first cooling water branch line 600 is forced to flow, and the first cooling water bypass line 620 is the third water pump 610 of the first cooling water branch line 600 ), one side is connected to the inlet end side, the other side is connected to the outlet end side of the water-cooled condenser 1000 to flow cooling water flowing along the first cooling water branch line 600, and the battery radiator 630 is made of 1 is provided on the inlet end side of the water-cooled condenser 1000 of the cooling water branch line 600 to air-cool the cooling water before flowing into the water-cooled condenser 1000.

And the second cooling water circulation line 300 selectively circulates the cooling water so that the electrical equipment PE is cooled. The second cooling water circulation line 300 includes a second water pump 310, and the second water pump 310 ) Forcibly flows cooling water flowing along the second cooling water circulation line 300.

At this time, the second cooling water circulating line 300 is connected to a second cooling water branch line 700. The second cooling water circulating line 700 is branched from one side of the outlet end of the electrical equipment among the second cooling water circulating lines 300. , The other side is connected to the inlet end side of the electrical equipment (PE), the inlet end side of the water-cooled condenser 1000 of the second cooling water splitter line 700 is provided with an electrical equipment radiator 710, introduced into the water-cooled condenser 1000 The cooling water before it is air-cooled.

Here, the first cooling water supply path 1122A and the third cooling water supply path 1122C of the water-cooled condenser 1000 may be connected to the battery radiator 630 and the electrical equipment radiator 710, respectively. In addition, if necessary, it may be connected to the electrical equipment radiator 710 and the battery radiator 630, respectively.

Here, a 3 way valve 320 is provided at a branching point where one side of the second cooling water circulating line 300 branches out of the second cooling water circulation line 300, according to the signal for each operation mode transmitted from the control unit of the cooling and heating system. By changing the flow path of the way valve 320, the flow path of the cooling water is opened and closed.

And the water-cooled condenser 1000 is superposed on the second refrigerant branch line 500, the first cooling water branch line 600 and the second cooling water branch line 700, the second refrigerant branch line 500, the first cooling water The refrigerant flowing in the branch line 600 and the second cooling water branch line 600 exchange heat with the cooling water.

FIG. 10 is a view showing a circulation process of a refrigerant in a cooling mode of an air conditioning system for an electric vehicle according to an embodiment of the present invention illustrated in FIG. 9.

Referring to FIG. 10, in the cooling mode, when a cooling mode is selected by a signal transmitted from a control unit of a heating/cooling system or a user's selection, the passage opening/closing door 1005 provided in the housing 1001 of the air conditioning unit is a heating passage ( 1003) is closed, and the cooling passage 1004 is controlled to open.

And the second way valve 101 and the second expansion valve 410 is closed control, the first expansion valve 130 is controlled open, the cooling water is the second water pump 310 and the third water pump 610 It is controlled to circulate along the first coolant branch line 600, the first coolant bypass line 620, and the second coolant branch line 700 by driving.

Here, the three-way valve 230 of the first cooling water circulation line 200 is closed and controlled so that the battery cooling water circulates along the first cooling water branch line 600 and the first cooling water bypass line 620, and the second cooling water circulation The three-way valve 320 of the line 300 is controlled to change the flow path so that the cooling water circulates along the second cooling water separator line 700.

Under the control of the valves, the refrigerant flows into the electric compressor 110 and is compressed and then discharged, and the refrigerant discharged from the electric compressor 110 flows into the indoor condenser 120 along the refrigerant circulation line 100, At this time, it flows out without heat exchange of the supply air flowing into the indoor condenser 120.

And the refrigerant leaked from the indoor condenser 120 flows along the refrigerant circulation line 100, flows along the second refrigerant branch line 500 through the branch point, and is expanded by the first expansion valve 130. , Flowing into the evaporator 140.

At this time, the cooling water is circulated along the first cooling water branch line 600 and the second cooling water branch line 700 by the second water pump 310 and the third water pump 610, where the first cooling water branch After being air-cooled by the battery radiator 630 and the electrical appliance radiator 710 disposed on each of the line 600 and the second cooling water distributor line 700, the second refrigerant branch line 500 and the first cooling water distributor line (600), in the water-cooled condenser (1000) overlapping the second cooling water separator line (700), the refrigerant is dissipated by heat exchange with the refrigerant to cool the refrigerant.

In addition, the refrigerant that has been cooled in the water-cooled condenser 1000 and then flows into the evaporator 140 is absorbed by heat exchange with the air supply provided from the evaporator 140 to the car interior, so that the air supply is cooled, and the cooled air is cooled into the car interior. Provided for cooling of the car interior.

And the refrigerant leaked from the evaporator 30 flows into the accumulator 150 through the refrigerant circulation line 100.

As the refrigerant flowing into the accumulator 150 is separated into a liquid phase and a gas phase, the gas phase refrigerant flows out, and the leaked gas phase refrigerant forms a circulation process that is re-introduced into the electric compressor 110 through the refrigerant purification line 100.

FIG. 11 is a view showing a circulating process of the refrigerant in the cooling and battery cooling modes of the heating and cooling system for an electric vehicle according to an embodiment of the present invention illustrated in FIG. 9.

Referring to FIG. 11, in the cooling battery cooling mode, when the cooling battery cooling mode is selected by a signal transmitted from a control unit of a cooling/heating system or a user's selection, a passage opening/closing door 1005 provided in the housing 1001 of the air conditioning unit The heating passage 1003 is closed, and the cooling passage 1004 is controlled to open.

And the second way valve 101 is closed control, the second expansion valve 410 is open control, the cooling water is the first water pump 210, the second water pump 310 and the third water pump 610 It is controlled to circulate along the first cooling water circulation line 200, the first cooling water branch line 600, the first cooling water bypass line 620, and the second cooling water branch line 700 by driving.

Here, the three-way valve 230 of the first cooling water circulation line 200 circulates along the first cooling water circulation line 200, the first cooling water branch line 600, and the first cooling water bypass line 620, respectively. The flow path is controlled, and the 3-way valve 320 of the second cooling water circulation line 300 controls the flow path by changing the cooling water circulation to the second cooling water branch line 700.

Under the control of the valves, the refrigerant flows into the electric compressor 110 and is compressed and then discharged, and the refrigerant discharged from the electric compressor 110 flows into the indoor condenser 120 along the refrigerant circulation line 100, At this time, it flows out without heat exchange of the supply air flowing into the indoor condenser 120.

And the refrigerant leaked from the indoor condenser 120 flows along the refrigerant circulation line 100, flows along the second refrigerant branch line 500 through the branch point, and is expanded by the first expansion valve 130. , Flowing into the evaporator 140.

At this time, the cooling water is circulated along the first cooling water branch line 600 and the second cooling water branch line 700 by the second water pump 310 and the third water pump 610, where the first cooling water branch After being air-cooled by the battery radiator 630 and the electrical appliance radiator 710 disposed on each of the line 600 and the second cooling water distributor line 700, the second refrigerant branch line 500 and the first cooling water distributor line (600), in the water-cooled condenser (1000) overlapping the second cooling water separator line (700), the refrigerant is dissipated by heat exchange with the refrigerant to cool the refrigerant.

In addition, the refrigerant that has been cooled in the water-cooled condenser 1000 and then flows into the evaporator 140 is absorbed by heat exchange with the air supply provided from the evaporator 140 to the car interior, so that the air supply is cooled, and the cooled air is cooled into the car interior. Provided for cooling of the car interior.

And the refrigerant leaked from the evaporator 30 flows into the accumulator 150 through the refrigerant circulation line 100.

In addition, the refrigerant leaked from the indoor condenser 120 flows along the refrigerant circulation line 100, flows along the first refrigerant branch line 400 through the branch point, and is expanded by the second expansion valve 410. Then, it is introduced into the chiller 420.

At this time, the refrigerant introduced into the chiller 420 is absorbed by heat exchange with the cooling water circulating along the first cooling water circulation line 200, so that the refrigerant cools the cooling water to cool the battery, and the refrigerant leaked to the chiller 420 Is joined from the first refrigerant branch line 400 to the refrigerant circulation line 100, and then flows into the accumulator 150.

As the refrigerant introduced into the accumulator 150 is separated into a liquid phase and a gas phase, the gas phase refrigerant flows out, and the leaked gas phase refrigerant forms a circulation process that is re-introduced into the electric compressor 110 through the refrigerant purification line 100.

The present invention can improve cooling efficiency by supplying some of the low-temperature cooling water supplied to the supercooling unit to the condensing unit so that the refrigerant is condensed in the condensing unit.

Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

100: refrigerant circulation line 101: 2-way valve
110: electric compressor 120: indoor condenser
130: first expansion valve 140: evaporator
150: accumulator 200: first cooling water circulation line
210: first water pump 220: water heating means
230: 3-way valve 300: Second cooling water circulation line
310: second water pump 320: 3-way valve
400: first refrigerant branch line 410: second expansion valve
420: chiller 500: second refrigerant branch line
510: water cooling condenser 600: first cooling water separator line
610: 3rd water pump 620: 1st cooling water bypass line
630: battery radiator 700: second cooling water separator line
710: electrical equipment radiator 1001: housing of the air conditioning unit
1002: blowing means 1003: heating passage
1004: cooling passage 1005: passage opening and closing door
1006: PTC heater 1000: water-cooled condenser
1110: condensing unit 1120: supercooling unit
1122A: 1st cooling water supply path 1122B: 2nd cooling water supply path
1122C: Third cooling water supply path B: Battery
PE: electrical equipment

Claims (18)

As a water-cooled condenser used in electric vehicles,
A condensing unit including a first refrigerant flow plate in which refrigerant flows into the inner layer and a plurality of layers are stacked, and a plurality of first cooling water flow plates stacked alternately with the first refrigerant flow plate;
A supercooling unit including a second refrigerant flow plate in which a refrigerant flows into the inner layer and a plurality of layers are stacked, and a plurality of second cooling water flow plates stacked alternately with the second refrigerant flow plate;
A receiver dryer that removes moisture and impurities contained in the refrigerant condensed in the condensing unit and supplies it to the supercooling unit;
A first cooling water supply channel supplying cooling water to the second cooling water flow plate;
A second cooling water supply path supplying a portion of the cooling water supplied through the first cooling water supply path to a portion of the plurality of first cooling water flow plates, and
And a third cooling water supply channel for supplying cooling water to the remaining first cooling water flow plate through which the cooling water is not supplied through the second cooling water supply channel.
The cooling water supplied through the first cooling water supply passage is a water-cooled condenser having a lower water temperature than the cooling water supplied through the third cooling water supply passage. According to claim 1,
The condensation unit,
A first unit condensing unit receiving cooling water through the first cooling water supply channel;
A water-cooled condenser including a second unit condensing unit receiving cooling water through the third cooling water supply channel. According to claim 2,
A water-cooled condenser disposed between the first unit condensing unit and the second unit condensing unit, and further comprising a separator plate having a rectangular plate shape and a refrigerant moving hole formed on one edge. According to claim 2,
The number of the first cooling water flow plates included in the first unit condensation unit is
A water-cooled condenser having 10 to 35% of the total number of the first cooling water flow plates. According to claim 2,
A water-cooled condenser that is disposed between the condensing part and the supercooling part, and further includes a connection part connected to the receiver dryer to provide a movement path of the coolant and the coolant. The method of claim 4,
The connecting portion,
One surface is formed in a rectangular shape in contact with one surface of the first unit condensing unit, and the first and second unit cooling water supply holes included in the second cooling water supply channel are formed at both ends and move through the first unit condensing unit. A first connecting plate in which a first unit refrigerant moving hole providing a moving path of the refrigerant is formed,
One surface is formed in a rectangular shape in contact with the other surface of the second connecting plate, and at both ends, third and fourth unit cooling water supply holes included in the second cooling water supply channel are formed, and once condensed the first unit A second connection plate in which a second unit refrigerant movement hole is provided, which provides a movement path of the refrigerant moving through the unit;
One surface is formed in a rectangular shape in contact with the other surface of the second connecting plate, the first and second guide grooves for performing refrigerant flow in and out of the refrigerant inlet and the refrigerant outlet are formed on one side, and the second cooling water supply path A third connecting plate in which the fifth and sixth unit cooling water supply holes included in are formed,
One surface is formed in a rectangular shape in contact with the other surface of the third connecting plate, and both ends are formed with seventh and eighth unit cooling water supply holes included in the second cooling water supply channel, and once condensed the first unit A fourth connection plate in which a third unit refrigerant movement hole is formed, which provides a movement path of the refrigerant moving through the unit;
One surface is in contact with the other surface of the fourth connecting plate, the other surface is made of a rectangular shape in contact with one surface of the subcooling part, the ninth and tenth unit cooling water supply holes included in the second cooling water supply passage are formed at both ends, A water-cooled condenser including a 51th connection plate in which a fourth unit refrigerant movement hole is provided to provide a movement path of the refrigerant moving through the first unit condensation unit. The method of claim 6,
The first unit cooling water supply hole and the tenth unit cooling water supply hole are water-cooled condensers formed in a manor shape. The method of claim 6,
The second connecting plate,
A first connecting rib protruding from both ends and inserted into the refrigerant inlet hole and the refrigerant outlet hole, respectively,
A first connecting bracket protruding from the other end and fixed to the vehicle body,
A water-cooled condenser including a first fixed jaw protruding to a certain height on one bottom surface of the first connecting rib. The method of claim 8,
The third connecting plate,
An insertion guide rib that protrudes on both sides of the inlet of the first guide groove and the second guide groove, and is inserted into the refrigerant inlet hole and the refrigerant outlet hole,
A water-cooled condenser including a second fixed jaw protruding to a certain height on one side of the insertion guide rib. The method of claim 9,
The fourth connecting plate,
A second connecting rib protruding from both ends and connected to the receiver dryer,
A second connecting bracket protruding from the other end and fixed to the vehicle body,
A water-cooled condenser further comprising a third fixed jaw protruding to a certain height on one bottom surface of the second connecting rib. The method of claim 9,
The bottom of the first guide groove communicates with the second unit refrigerant moving hole,
A bottom portion of the second guide groove is a water-cooled condenser communicating with the third unit refrigerant moving hole. The method of claim 10,
The separation distance between the first connection rib and the second connection rib,
A water-cooled condenser corresponding to the separation distance of the first and second guide grooves. The method of claim 10,
The height of the first to third fixing jaws is the same water-cooled condenser. The method of claim 10,
The length of the first connection rib and the second connection rib is a water-cooled condenser corresponding to the length of the refrigerant inlet hole and the refrigerant outlet hole. The method of claim 14,
The length of the first connecting rib and the second connecting rib,
A water-cooled condenser corresponding to the separation distance of the insertion guide rib. The method of claim 6
The thickness of the connecting plate is a water-cooled condenser corresponding to the width of the refrigerant inlet hole and the refrigerant outlet hole. The method of claim 15
Each of the first to fifth connecting plates has a water-cooled condenser having a thickness of 2 mm or more. The water-cooled condenser according to any one of claims 1 to 17;
A refrigerant circulation line that circulates refrigerant through an electric compressor, an indoor condenser, a first expansion valve, and an evaporator so that heating and cooling of a vehicle interior are selectively performed;
A first cooling water circulation line that selectively circulates cooling water to cool the battery;
A second cooling water circulation line that selectively circulates cooling water to cool the electrical components;
A first refrigerant branch line in which one side is branched from the inlet end of the first expansion valve, and the other side is connected to the inlet end of the electric compressor to selectively flow refrigerant;
A second expansion valve provided on the first refrigerant branch line and selectively opened and closed to expand and discharge the refrigerant flowing through the first refrigerant branch line;
Among the first refrigerant branch lines, provided at the rear of the second expansion valve, accommodates the refrigerant expanded in the second expansion valve, and coolant flowing through the first cooling water circulation line and the second cooling water circulation line respectively. A heat exchanger chiller;
A two-way valve provided between the indoor condenser and the first expansion valve among the refrigerant circulation lines to open and close the refrigerant circulation line between the indoor capacitor and the first expansion valve;
A second refrigerant branch line branched from one side of the inlet end of the 2-way valve in the refrigerant circulation line, and the other side connected to an outlet end side of the 2-way valve in the refrigerant circulation line;
A first cooling water branch line in which one side is branched from the outlet end side of the battery among the first cooling water circulation lines, and the other side is connected to the inlet end side of the battery;
In the second cooling water circulation line, one side is branched from the outlet end side of the electrical equipment, and the other side is a second cooling water branch line connected to the inlet end side of the electrical equipment.
The water-cooled condenser,
The second refrigerant branch line, the first coolant branch line and the second coolant branch line are superimposed on the second coolant branch line, the first coolant branch line and the second coolant branch line, respectively. Air conditioning system for electric vehicles that selectively exchange heat.

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