KR101023026B1 - Hybrid evaporator - Google Patents

Abstract

A combined evaporator is disclosed. The present invention provides an inlet tube through which a heat exchange medium is introduced; and a plurality of tubes in which a pair of plates are coupled to each other to provide an independent flow space of the heat exchange medium in front and rear heat by a rib formed at a center thereof, and the upper and lower parts of the tube are stacked. A four-tank tube group in which the first to fourth tank parts are formed; and a plurality of tubes in which a pair of plates are coupled to each other to provide a space in which the heat exchange medium flows up and down, and the first and fourth parts of the tube And a two-tank tube group in which the second tank unit is formed; and a bypass tube provided adjacent to the four-tank tube group or the two-tank tube group to provide a path for bypassing the heat exchange medium. Heat dissipation 휜 interposed between each tube to increase the heat dissipation area; and a discharge pipe for discharging the heat exchange medium heat exchanged from the 4-tank tube group and 2-tank tube group, the heat exchange medium is introduced And Outgoing part is a four-tank tube group, and a plurality of two-tank tube groups are stacked in the part where the heat exchange medium is U-turned after the flow, so that the tank area in the U-turn part is wider. You lose. Accordingly, the pressure drop of the heat exchange medium can be reduced.

Description

Hybrid evaporator

1 is an exploded perspective view showing an evaporator according to a conventional example,

2 is a block diagram showing the flow of the heat exchange medium of the evaporator according to another conventional example,

3 is a perspective view showing an evaporator according to another conventional example,

4 is an exploded perspective view showing an evaporator according to the first embodiment of the present invention;

5 is a configuration diagram showing a flow of the heat exchange medium of Figure 4,

6 is a block diagram showing a flow of heat exchange medium of the evaporator according to a second embodiment of the present invention,

7 is a plan view showing a plate applied to the two-tank tube according to an embodiment of the present invention,

8 is a plan view showing a plate applied to the four-tank tube according to an embodiment of the present invention,

Figure 9 is a plan view showing a plate applied to the bypass tube according to an embodiment of the present invention.

<Brief description of symbols for the main parts of the drawings>

40 ... Evaporator 42 ... End Plate                 

43.Inlet pipe 44 ... Outlet pipe

45 ... heat dissipation

First tube group with 410 ... 4-tank type

Second tube group with 420 ... 4-tank blank

3rd tube group with 430 ... 2-tank bypass

4th tube group with 440 ... 2-tank type

The present invention relates to an evaporator, and more particularly, a complex evaporator having a structure in which a tank part providing a passage through which a heat exchange medium is introduced and discharged is configured to mix a 2-tank type and a 4-tank type to improve cooling performance. It is about.

Typically, in a heat exchanger, the evaporator is mounted in a case together with a heater core and a blower. The evaporator heat-exchanges the first low temperature low pressure first heat exchange medium in a wet vaporized state, which is introduced through an expansion process, with a second heat exchange medium in a car interior or outdoors to convert it into a gas. The second heat exchange medium deprived of heat is changed to a low temperature and low humidity state, and is discharged to the interior of the vehicle by the blower to maintain the indoor environment comfortably.

This evaporator is a fin-tube type in which a flat aluminum plate is drilled and a tube of a circular cross section is pressed in between, and the tube is bent into an “S” shape and a heat radiation fin is inserted therebetween. A serpentine type, which is an enclosed form, and two sheets of steel sheet-shaped aluminum sheets are stacked in a line, and classified into a laminate type, in which a pin is inserted therebetween.

1 shows a conventional stacked evaporator 10.

Referring to the drawings, the evaporator 10 includes a plurality of tubes 11 stacked in communication with each other and a tank part 12 coupled to the tubes 11.

The tube 11 is formed by coupling the first plate 13 and the second plate 14 to each other. The tube 11 has a rib 15 formed at the center to partition the flow space such that the heat exchange medium can flow from side to side, respectively. In addition, beads 16 are provided on opposite surfaces of the first and second plates 13 and 14 to provide flow passages of the heat exchange medium.

In addition, upper and lower portions of the tube 11 are provided with a tank 12 for providing a passage through which the heat exchange medium is introduced and discharged. The tank unit 12 is a first to fourth tank group (12a to 12d) formed by partitioning from side to side in the upper and lower portions of the tube 11 to provide a flow space of the heat exchange medium independent from side to side by the rib (15) , So-called 4-tank type.

In this case, although not shown in the drawings, at least one or more of the first to fourth tank groups 12a to 12d is a blank type in which a passage is blocked to switch the flow path of the heat exchange medium. In addition, at least one of the at least one is in communication with the left and right so that the heat exchange medium flowing from the heat transfer or heat transfer on the same tube (11) U-turn. This will be more clearly understood in the flow direction of the heat exchange medium as shown by the arrows in the figure.

On the other hand, the outer surface of the adjacent tube 11 is interposed with a heat dissipation fin 17 to improve the heat exchange efficiency between the heat exchange medium flowing in the tube 11 and the outside air, the outermost tube end plate 18 Is attached, and the end plate 18 is formed with an inlet pipe 19a and a discharge pipe 19b communicating with the tank part 12 to introduce and discharge a heat exchange medium into the stacked tube 11. It is.

Looking at the flow of the heat exchange medium of the evaporator 10 having the above configuration briefly as follows.

The heat exchange medium introduced from the inlet tube 19a flows into the stacked tube 11 and is turbulent by beads 16 protruding from the surfaces of the first and second plates 13 and 14 which are combined. As heat is promoted, heat transfer is performed, and heat exchanges with the outside air while flowing along an independent flow path from side to side by ribs 15 formed at the center of each plate 11 as indicated by arrows, and then the discharge pipe 19b is opened. Is discharged through.

By the way, the conventional evaporator 10 has the following problems.

The evaporator 10 has a tank portion 12 formed on the same tube 11 after the heat exchange medium has flowed in through the inlet pipe 19a and then flowed along each flow path partitioned by the rib 15. When U-turns through), the area between the first to fourth tank groups 12a to 12d independent from side to side is narrowed, causing a pressure drop of the heat exchange medium.                         

In addition, since the ribs 15 are formed in the center of the tube 11 to partition the plurality of tanks 12 formed up and down in the left and right, the heat exchange medium acts as a deterrent to the heat transfer performance during the flow.

Furthermore, there are many superheated regions in the region where the heat exchange medium U-turns to the first to fourth tank groups 12a to 12d independent from side to side.

2 illustrates a flow path of an evaporator 20 according to another conventional example.

Referring to the drawings, the evaporator 20 includes a plurality of stacked tubes as described above, and a four-tank group formed on the upper and lower portions of the tubes. The evaporator 20, as indicated by the arrow, the heat exchange medium introduced through the inlet pipe 22 flows along the heat transfer flow path of the first section (I), the blank tank 21 is blocked passage To switch the path.

The exchanged heat exchange medium flows along the electrothermal flow path of the second section II, and then U-turns to flow along the post-heat flow path of the second section II. The heat exchange medium passing through the second section (II) flows along the after-heat flow path of the first section (I) and then is discharged through the discharge pipe 23.

However, since the conventional evaporator 20 is a four-tank type, the overall flow path length is increased, and the pressure drop of the heat exchange medium is increased. In particular, there is a problem that a large pressure drop occurs in a portion where the heat exchange medium is U-turned from the heat transfer to the post heat transfer.

3 shows an evaporator 30 according to another conventional example.

Referring to the drawings, the evaporator 30 is a two-tank having a plurality of stacked tubes 31, an upper tank 32 disposed above and below the tube 31, and a lower tank 33. Brother. As shown by the arrow, the evaporator 30 causes the heat exchange medium introduced through the inlet pipe 34 to exchange heat with the outside air while flowing in the tube 31 and then discharged through the discharge pipe 35. do.

However, since the conventional evaporator 30 is a two-tank type, the vaporized heat exchange medium is easily concentrated in the heat exchange medium outlet region compared to the evaporator employing the four-tank type to form an overheated region. In addition, since the inlet pipe 34 and the discharge pipe 35 can not be disposed on the same surface, the compactness is disadvantageous.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and by varying the shape of the tank portion in the region where the heat exchange medium is introduced and discharged and the heat exchange medium in the U-turn region, It is an object of the present invention to provide a complex evaporator which reduces the pressure drop in the compact and U-turn region.

In order to achieve the above object, a composite evaporator according to an aspect of the present invention,

An inlet pipe through which a heat exchange medium is introduced;

A four-tank type tube formed by stacking a plurality of tubes coupled with a pair of plates to provide independent flow spaces of the heat exchange medium in the front and rear rows by ribs formed at the center, and having the first to fourth tank portions at upper and lower portions of the tubes. Tube group;                     

A two-tank tube group in which a plurality of tubes coupled to a pair of plates are stacked so as to provide a space in which the heat exchange medium flows up and down, and first and second tanks are formed on upper and lower portions of the tubes;

A bypass tube installed adjacent to the four-tank tube group or the two-tank tube group to provide a path for bypassing the heat exchange medium;

A heat dissipation fin interposed between the tubes to widen the heat dissipation area; And

And a discharge pipe through which the heat exchange medium heat exchanged from the 4-tank tube group and the 2-tank tube group is discharged.

In addition, between the four-tank tube group and the two-tank tube group is characterized in that the tube group having a four-tank blank for switching the flow path of the heat exchange medium is further installed.

In addition, at least one of the inlet pipe or the discharge pipe is characterized in that coupled to the front of the evaporator, the other is coupled to the side of the evaporator.

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

FIG. 4 shows the combined evaporator 40 according to the first embodiment of the present invention, and FIG. 5 shows the flow of the heat exchange medium in the combined evaporator 40 of FIG.

4 and 5, the evaporator 40 includes a first tube group 410 having a four-tank type, a second tube 420 having a four-tank blank, and a first having a bypass. The tube group 400 in which the three tubes 430 and the fourth tube group 440 having a two-tank type are sequentially stacked is included.

The outermost end of the tube group 400 is provided with an end plate 42. An inlet pipe 43 is provided on a front surface of the end plate 42 to provide a passage through which a heat exchange medium flows into the tube group 400, and the end plate 42 and the first tube group 410 are connected to each other. Side of the side is coupled to the discharge pipe 44 that provides a passage for discharging the heat exchange medium from the tube group 400. As such, the inlet pipe 43 and the discharge pipe 44 are provided on the front and rear of the evaporator 40, respectively. In addition, the inlet pipe 43 and the discharge pipe 44 may be disposed on the front or side of the evaporator 40 according to the design method. On the other hand, the outer surface of each of the tube group 400, the heat dissipation fin 45 is interposed to widen the heat dissipation area.

In the first tube group 410 having a four-tank type, a plurality of tubes 413 made of a first plate 411 and a second plate 412 which are provided adjacent to each other and coupled to each other are stacked. The tube 413 is provided with a tank portion 414 in the upper and lower parts. The tank unit 414 is composed of first to fourth tank groups 415 to 418 which are installed in front and rear rows at upper and lower portions of the tube 413, respectively.

In addition, ribs 419 are formed in the first and second plates 411 and 412 in the longitudinal direction thereof. The rib 419 partitions the flow space of the heat exchange medium into front and rear rows.                     

Accordingly, the first and third tank portions 415 and 417 are disposed up and down from an equivalent flow space of the heat transfer surface of the tube 413, and the second and fourth tank portions 416 and 418 are disposed. Are arranged up and down from the equivalent flow space of the rear face surface partitioned by the ribs 419. The first to fourth tank groups 414 to 417 are coupled to communicate with each other when the adjacent tubes 413 are coupled to each other.

Meanwhile, beads 410a are formed on opposite surfaces of the first and second plates 411 and 412 to be coupled to each other to promote turbulence of the heat exchange medium.

The second tube 420 having the 4-tank blank installed adjacent to the first tube group 410 having the 4-tank type switches the flow path of the heat exchange medium flowing in the first tube group 410. At least one of the flow paths can be installed on demand.

Similarly to the first tube group 410, the first plate 421 and the second plate 422 are coupled to the second tube 420 having the four-tank blank. Only one second tube 420 is disposed. The tube 420 is provided with a tank portion 424 in the upper and lower parts. The tank unit 424 includes first to fourth tank groups 425 to 428 that are installed in front and rear rows on upper and lower portions of the tube 420.

In this case, the first and second tanks 425 and 426 arranged in front and rear rows at the top of the tube 420 may block a passage through which the heat exchange medium flows in order to switch the flow path of the heat exchange medium. It is a blank type.

On the other hand, the third and fourth tank portions 427 and 428 disposed to the left and right of the lower portion of the tube 420 provide a passage through which a heat exchange medium that exchanges heat with outside air flows.

In addition, ribs 429 are formed in the first and second plates 421 and 422 to divide the flow space of the heat exchange medium by the front and rear rows at the central portion thereof, and the first and second plates 421 are formed. A plurality of beads 420a are formed on opposite surfaces of 422.

The third tube 430 having the two-tank-type bypass installed adjacent to the second tube 420 having the four-tank blank is, like the second tube 420, the first plate 431 and the second. The plate 432 is coupled and one tube is arranged. The third tube 430 is provided with a tank portion 434 in the upper and lower portions.

At this time, the tank portion 434 is a two-tank type in which the first and second tank groups 435 and 437 are installed in the upper and lower portions of the tube 430. That is, the first tank portion 435 is provided on the upper portion of the tube 430, and the second tank portion 437 is disposed on the lower portion of the tube 430. The first tank portion 435 has a plurality of first and second portions coupled to the blank first and second tank portions 425 and 426 of the second tube 420 having adjacent 4-tank blanks. Communication holes 435a and 435b are formed, and the first and second communication holes 435a and 435b can communicate with each other.

In addition, the second tank portion 437 has a third communication hole 437a communicating with the third tank portion 427 of the second tube 420, and a fourth communication portion communicating with the fourth tank portion 428. Communication holes 437b are formed, respectively.

At this time, the third communication hole 437a is a heat exchange medium flowing from the second tube 420 is not directly heat exchanged from the inside of the third tube 430, it is directly supplied to the adjacent fourth tube group 440 It acts as a bypass passage. To this end, the third communication hole 437a is not substantially in communication with the inside of the third tube 430 formed by the combination of the first and second plates 431 and 432.

In addition, the first and second plates 431 and 432 have a central portion unlike the first tube group 410 having the four-tank type and the second tube 420 having the four-tank blank. Ribs for dividing the flow space of the heat exchange medium by front and rear rows are omitted.

Accordingly, the heat exchange medium flowing into the first tank portion 435 can flow to the second tank portion 437 without distinguishing the flow path in the front and rear heat. On the other hand, a plurality of beads 430a are formed on opposite surfaces of the first and second plates 431 and 432.

The fourth tube group 440 having a two-tank type installed adjacent to the third tube 430 having the bypass has a first plate 441 and a second plate 442 similar to the third tube 430. There is this combined tube 443. A plurality of tubes 443 are stacked. The tube 443 is provided with a tank portion 444 at the upper and lower portions.

At this time, the tank portion 444 is a two-tank type in which the first and second tank groups 445 and 447 are installed at the upper and lower portions of the tube 443. That is, a first tank portion 445 is provided at an upper portion of the tube 443, and a second tank portion 447 is provided at a lower portion of the tube 443.

The fourth tank group 440 is coupled to the first tank portion 445 to be coupled to the first and second communication holes 435a and 435b formed in the first tank portion 435 of the adjacent third tube 430. First and second communication holes 445a and 445b are formed. The first and second communication holes 445a and 445b for the fourth tube group 440 may communicate with each other. In some cases, the plurality of communication holes 445a and 445b may be deleted and one communication hole may be deleted. It could be formed.

In addition, a third communication hole 447a and a fourth communication hole 447b are formed in the second tank 447. The third and fourth communication holes 447a and 447b communicate with each other. In addition, the third communication hole 447a is in direct communication with the third communication hole 437a of the third tube 430 which is bypassed. Accordingly, the heat exchange medium flowing into the third communication hole 447a may be distributed to the fourth communication hole 447b.

In addition, ribs for partitioning the flow space of the heat exchange medium from side to side are omitted from the first and second plates 441 and 442. Accordingly, the heat exchange medium flowing into the second tank portion 447 can flow to the first tank portion 445. On the other hand, beads 440a are formed on opposite surfaces of the first and second plates 441 and 442 to promote turbulence of the heat exchange medium.

On the other hand, the tube having a two-tank blank formed in the tank portion coupled to the end plate 42, the passage is blocked up and down in the portion adjacent to the fourth tube group 440 having the two-tank type to be additionally installed. You will be able.

Referring to the flow of the heat exchange medium of the composite evaporator 40 having the above structure as follows.

First, the heat exchange medium introduced through the inlet pipe 43 is supplied through the first tank part 415 located above the first tube group 410 having a four-tank type, and is provided by the ribs 419. The heat is exchanged with the outside air while flowing along the heat transfer surface of the first section I of the tube 413 partitioned thereon. Subsequently, since the passage of the first tank part 425 of the second tube 420 having the 4-tank blank is blocked, the heat exchange medium flows to the lower end and is discharged through the third tank part 427.

As such, the first tube group 410 having a 4-tank type is stacked in the vicinity of the inlet pipe 43 and the discharge pipe 44 into which the heat exchange medium is introduced, so that the heat in the liquid state when the heat exchange medium is initially introduced. By alternately arranging the exchange medium and the heat exchange medium in the gas phase before the heat exchange medium is finally discharged, the air temperature distribution can be improved.

Subsequently, the heat exchange medium supplied to the third tank part 427 for the second tube 420 may have a second tank part disposed under the third tube 430 having a bypass in the second section II. Bypassed through the third communication hole (437a) of 437 is supplied directly to the fourth tube group 440 having a two-tank type.

As such, the second section (II) is a section for bypassing the heat exchange medium to one side of the heat transfer of the evaporator 40 in order to uniformly supply the heat exchange medium of the liquid initially introduced into the evaporator 40 to the after heat of the evaporator 40. to be. By adopting the third tube 430 having a bypass, it acts as a bypass passage in the heat transfer of the evaporator 40, and it is possible to simultaneously perform a heat dissipation function as a two-tank tube in the heat transfer after the evaporator 40. something to do.

Next, the heat exchange medium flowing into the second tank part 447 positioned below the tube 443 for the fourth tube group 440 in the third section III is the third and fourth communication holes 447a. 447b is in communication with each other and flows from the bottom to the top of the tube 443 to exchange heat with the outside air. At this time, since the rib is omitted on the inner surface to which the first and second plates 441 and 442 are coupled, the heat transfer area of the flowing heat exchange medium becomes large. The third section III is a section in which the two-tank tube group 440 is disposed in the U-turn portion of the evaporator 40 so as to lower the pressure drop and increase the heat transfer area as the ribs can be omitted. In addition, the heat exchange medium mainly generates heat exchange when U-turned after being bypassed to the third section III through the third tube 430 having the bypass.

Next, the heat exchange medium flowing to the first tank portion 445 positioned above the tube 443 for the fourth tube group 440 includes a first tank portion 435 positioned above the third tube 430. ), And the heat exchange medium supplied to the first tank unit 435 flows to the second tank unit 437 located under the tube 430 in the second section (II).

At this time, the second tank 437 is discharged through the fourth communication hole 437b, and the third communication hole 437a formed adjacent to the second tank part 437 is not supplied at all because it is a bypass passage. Thus, the heat exchange medium is not mixed.

Subsequently, the heat exchange medium discharged from the second tank portion 437 of the third tube 430 may include a fourth tank portion disposed below the second tube 420 having a four-tank blank disposed adjacent thereto. 428). In this case, the fourth tank part 428 is partitioned from the third tank part 427 disposed adjacently by the rib 429 formed at the center portion of the tube 420.

The heat exchange medium supplied to the fourth tank part 428 of the second tube 420 is the fourth of the four-tank tube group 410 stacked in a plurality of sheets on the rear heat side of the tube 413 of the first section. It flows in through the tank part 418. The heat exchange medium introduced into the fourth tank 418 flows from the lower portion of the first tube 413 to the upper portion and exchanges heat with the outside air, which is supplied to the second tank portion 416. The heat exchange medium supplied to the second tank 416 is discharged through the discharge pipe 44.

As such, the heat exchange medium introduced through the inlet pipe 43 may include a first tube group 410 having a four-tank type, a second tube 420 having a four-tank blank, and a bypass having a bypass. The three tubes 430 and the insides of the plates 413 to 443 of the fourth tube group 440 having a two-tank type are sequentially exchanged with the outside air to be discharged to the discharge pipe 44.

Figure 6 shows the flow of heat exchange medium in the hybrid evaporator 60 according to the second embodiment of the present invention.

Referring to the drawings, the evaporator 60 has four inlet pipes 61 into which heat exchange media are introduced, which are arranged adjacently through the bypass passage 63 in the first section I where the bypass tube is disposed. -Connected to the second section (II) in which a plurality of tank-type tubes are stacked.

The heat exchange medium flowing into the heat transfer surface of the 4-tank tube of the second section (II) is a third section (III) in which a plurality of 2-tank tubes are stacked via the heat transfer surface of the tube having the 2-tank blank. Will flow). The heat exchange medium heat-exchanged through the third section (III) in which the two-tank tubes are stacked is passed through the rear surface of the tube having the two-tank blank, and the rear surface of the four-tank tube in the second section (II). By flowing through, it is discharged to the discharge pipe 72 via the tube of the first section (I).

As such, the evaporator 70 has a second section (II) in which a plurality of four-tank tubes are disposed by bypassing the heat exchange medium to the bypass passage 73 in the first section (I), and adjacent to the second section (II). The four-tank tube and the two-tank tube are combined to allow flow through the third section III in which the tank tube is disposed. As a result, the liquid phase heat exchange medium can be evaporated intensively in the local superheated region.

7 to 9 show the aforementioned two-tank tube, four-tank tube, and respective plates 70 to 90 applied to the bypass tube.

7 to 9, the two-tank tube plate 70 is provided with a first tank 71 and a second tank 72 up and down. The first and second communication holes 73 and 74 are formed in the first tank 71 so as to communicate with each other, and the third and fourth communication holes 75 are also formed in the second tank 72. 76 is formed to communicate with each other.

In addition, the plate 70 is omitted in the center portion ribs for partitioning the flow space of the heat exchange medium in the front and rear heat, the bead 77 is formed to promote the turbulence of the heat exchange medium.

The four-tank tube plate 80 is formed with a first to fourth tank group 81 to 84 are installed in the front and rear rows in the upper and lower portions, respectively. The first and third tank portions 81 and 83 are disposed up and down from an equal flow space of the heat transfer surface of the plate 80, and the second and fourth tank portions 82 and 84 are ribs ( It is arranged up and down from the equal flow space of the rear surface partitioned by 85).

The bypass tube plate 90 is provided with first and second tank portions 91 and 92 at upper and lower portions thereof. A plurality of first and second communication holes 93 and 94 are formed in the first tank 91, and they can communicate with each other. A third communication hole 95 and a fourth communication hole 96 are formed in the second tank part 92, respectively. In this case, the fourth communication hole 96 serves as a bypass passage. Unlike the other communication holes 93 to 95, the fourth communication hole 96 is not substantially in communication with the inside of the plate 90.

In addition, the plate 90 is omitted in the center portion ribs for partitioning the flow space of the heat exchange medium to the left and right. Accordingly, the heat exchange medium flowing into the first and second communication holes 93 and 94 of the first tank 91 is not necessarily distinguished from the flow paths in the front and rear heat, so that the second tank 92 can It is possible to flow to three communication holes (95).

As described above, the composite evaporator according to the present invention can obtain the following effects.

First, the portion where the heat exchange medium flows in and out is a 4-tank tube group, and a plurality of 2-tank tube groups are stacked on the portion where the heat exchange medium is U-turned after the flow, so that the U-turn The tank area at the part becomes wider. Accordingly, the pressure drop of the heat exchange medium can be reduced.

Second, since ribs are omitted in the plate in the U-turn portion of the heat exchange medium, the heat transfer area of the heat exchange medium becomes large, and thus the heat transfer performance can be greatly improved.

Third, the 2-tank tube group in the U-turn portion of the heat exchange medium has less overheating area than the 4-tank tube group, thereby maximizing heat dissipation performance. The heat dissipation performance is improved by arranging a group of two-tank tubes in which the ribs are omitted in the portion where the heat exchange medium in which a large amount of superheated region is generated is U-turned.

Fourth, the inlet and outlet of the heat exchange medium can be placed at the same time the inlet and outlet tubes of the heat exchange medium on the side of the evaporator by installing a four-tank tube group. Thus, the overheated area is reduced.

Fifth, the two-tank tube group is installed at the portion where the heat exchange medium is introduced to promote active heat transfer, and the four-tank tube group is installed at the portion where the heat exchange medium is discharged to uniform the air temperature. In addition, it is possible to reduce the pressure drop of the heat exchange medium and to reduce the occurrence of the overheated area at the portion where the heat exchange medium is discharged.

Sixth, the heat exchange medium is introduced through the bypass passage, and then the heat exchange area is increased by allowing the heat exchange to flow through the combined section of the 4-tank tube group and the 2-tank tube group, thereby improving the local superheated area. Can be reduced.

Although described with reference to one embodiment shown in the drawings it is merely exemplary, 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 will be defined by the technical spirit of the appended claims.

Claims (8)

An inlet pipe through which the heat exchange medium is introduced; A four-tank type tube formed by stacking a plurality of tubes coupled with a pair of plates to provide independent flow spaces of the heat exchange medium in the front and rear rows by ribs formed at the center, and having the first to fourth tank portions at upper and lower portions of the tubes. Tube group; A two-tank tube group in which a plurality of tubes coupled to a pair of plates are stacked to provide a space in which the heat exchange medium flows up and down, and first and second tanks are formed on upper and lower portions of the tube; and A bypass tube installed adjacent to the 4-tank tube group or the 2-tank tube group to provide a path for bypassing the heat exchange medium; A heat radiation 는 interposed between the tubes to widen the heat radiation area; And a discharge pipe through which the heat exchange medium heat exchanged from the 4-tank tube group and the 2-tank tube group is discharged. Between the 4-tank tube group and 2-tank tube group is further provided with a tube having a 4-tank blank for switching the flow path of the heat exchange medium, At least one tube is disposed in the tube having the four-tank-shaped blank, and first to fourth tank parts partitioned by ribs are respectively provided on upper and lower portions of the tube, and either one of the first to fourth tank parts. The tank unit of the hybrid evaporator, characterized in that the passage of the heat exchange medium is blocked in order to switch the flow path of the heat exchange medium. The method of claim 1, The inlet pipe and the outlet pipe are both arranged on the side of the four-tank tube group, the rear of the four-tank tube group, characterized in that the two-tank tube group in which the heat exchange medium U-turn is arranged evaporator. delete delete The method of claim 2, At least one of the inlet pipe or outlet pipe is coupled to the front of the evaporator, the other is combined hybrid evaporator, characterized in that coupled to the side of the evaporator. The method of claim 1, The bypass tube is provided with upper and lower portions of the first and second tanks, respectively, and a lower portion of the second tank unit bypasses the heat exchange medium from the 4-tank tube group to the 2-tank tube group. Hybrid evaporator, characterized in that the communication hole is formed in communication with the flow path of the. The method of claim 1, The inlet pipe and the outlet pipe are disposed on the bypass tube side providing a path for bypassing the heat exchange medium, and the 4-tank tube and the 2-tank tube are continuously installed at the rear of the bypass tube. Composite evaporator. The method of claim 7, wherein And the bypass tube is in communication with their flow path to bypass the heat exchange medium introduced from the inlet pipe to the 4-tank tube group.

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