WO2015108289A1

WO2015108289A1 - Heat exchanger and air conditioner having same

Info

Publication number: WO2015108289A1
Application number: PCT/KR2014/012709
Authority: WO
Inventors: 최용화; 김영민; 하야세가꾸
Original assignee: 삼성전자주식회사
Priority date: 2014-01-15
Filing date: 2014-12-23
Publication date: 2015-07-23

Abstract

The present invention relates to a heat exchanger having an added bead structure so as to be foldable in a predetermined way, and to an air conditioner having same. The heat exchanger comprises: a plurality of refrigerant tubes respectively extending in a first direction and disposed apart from one another in a second direction; and a fin array inserted, in a third direction, between the plurality of refrigerant tubes. The fin array comprises: a plurality of insert slots arranged apart from one another in the second direction such that the plurality of refrigerant tubes can be inserted therein; a plurality of folding portions bent so as to dispose the plurality of insert slots at one side of the fin array; and a plurality of heat exchanging fins partitioned by the plurality of insert slots and the plurality of folding portions. Strength can be reinforced through the inclusion of a bead shape, and thus the fin array can be folded in a predetermined shape.

Description

Heat exchanger and air conditioner having same

The present invention relates to a heat exchanger and an air conditioner having the same, and more particularly, to a heat exchanger having a predetermined form and an air conditioner having the same.

In general, an air conditioner is a device that removes dust in the air while controlling temperature, humidity, air flow, and distribution suitable for human activity using a refrigeration cycle. The main components of the refrigeration cycle include compressor, condenser, evaporator, expansion valve, and blower fan.

The condenser and the evaporator are provided in the form of a heat exchanger capable of heat-exchanging refrigerant and air to provide harmonized air. The heat exchanger includes a plurality of coolant tubes spaced apart from each other, a header coupled to both ends of the plurality of coolant tubes, and a plurality of heat exchanger fins coupled between the plurality of coolant tubes to widen an area in contact with the outside.

Conventional heat exchange fins are provided to extend in the longitudinal direction, each of which is fitted into the refrigerant tube. The shape of the heat exchange fins takes a lot of time to assemble, there is a difficulty in the production of heat exchange fins. Therefore, it is possible to use a fin array in which the heat exchange fin is made into one plate shape and folded into a predetermined shape to be coupled to the refrigerant tube.

However, there is a problem in that the weak strength portion is folded instead of the portion to be folded in the folding process. In addition, in the case of the fin array that is fitted on one side of the refrigerant tube, the interval between the heat exchange fins may not be maintained, it may cause a performance degradation of the heat exchanger.

In addition, due to the header extending in one direction, the heat exchanger consisting of a plurality of refrigerant tubes and the header has a problem that is difficult to apply to the indoor unit of the wall-mounted air conditioner.

One aspect of the present invention provides a heat exchanger having an array of fins bent in a predetermined form and an air conditioner having the same.

In addition, it provides a heat exchanger and an air conditioner having the same that can maintain the gap between the folded fin array.

According to an aspect of the present invention, a heat exchanger includes a plurality of refrigerant tubes extending in a first direction and spaced apart in a second direction, and a fin array fitted to the plurality of refrigerant tubes in a third direction. A plurality of insertion grooves arranged to be spaced apart in the second direction so that the plurality of refrigerant tubes are inserted, a plurality of folding portions bent to be disposed at one side of the pin array, and a plurality of It includes a plurality of heat exchange fins partitioned by the insertion groove and the plurality of folding parts.

Each heat exchange fin may be formed of a pair of contact surfaces facing each other to form the plurality of insertion grooves, and a pair of connecting surfaces facing each other so as to be connected to the plurality of folding portions.

The pair of connection surfaces may include a first connection surface disposed to be spaced apart from each of the heat exchange fins adjacent in the second direction, and a second connection surface disposed to be connected to each heat exchange fin adjacent to the second direction. Can be.

The plurality of folding parts may be connected to a first folding part arranged to connect the first connection surface of each heat exchange fin in the first direction, and to connect the second connection surface of each heat exchange fin in the first direction. It may include a second folding portion arranged to.

The pair of contact surfaces may include a burring portion for widening a contact area with the plurality of refrigerant tubes.

The second connection surface may include a moisture guide bone formed in the second direction so that water generated during the heat exchange process may be discharged.

Each of the heat exchange fins includes at least one bead arranged to be bent into a plurality of folding portions, and the at least one bead may be formed to protrude in the first direction.

Each heat exchange fin may include a plurality of louvers to change the path of air that is heat exchanged through the heat exchanger.

The plurality of louvers may include a first louver inclined to one side in the third direction and a second louver inclined to the other side in the third direction.

Each of the heat exchange fins includes at least one bead arranged to be bent into a plurality of folding portions, and the at least one bead may be located outside the plurality of louvers.

Each of the heat exchange fins may include a space keeping member protruding in the first direction of each of the heat exchange fins so as to be spaced apart in the first direction and disposed in the plurality of refrigerant tubes.

The spacing member includes a plurality of slits formed to have a ridge on one side, and each slit is a ridge of one slit and the other one located on at least one heat exchange fin located adjacent to the first direction. The ridges of the slits may be arranged to contact.

The gap maintaining member may include at least one tab protruding from one surface of each heat exchange fin.

The plurality of refrigerant tubes may include a first refrigerant tube and a second refrigerant tube positioned side by side in the third direction, and the plurality of first refrigerant tubes and the second refrigerant tubes may be spaced apart from each other in a second direction. Can be.

And a pair of first headers coupled to both ends of the first refrigerant tube, and a pair of second headers coupled to both ends of the second refrigerant tube, wherein the refrigerant comprises the first refrigerant tube and the second refrigerant. One side of the pair of first headers and the pair of second headers may include at least one through hole so as to pass through the tube.

In addition, the heat exchanger according to the spirit of the present invention is provided with a flow path through which a refrigerant flows, and is inserted from one side of the plurality of refrigerant tubes so as to contact the plurality of refrigerant tubes and the plurality of refrigerant tubes stacked in the vertical direction, respectively. A pin array, wherein the pin array is arranged to be adjacent to the plurality of folding portions, the plurality of folding portions that are bent along a predetermined bending line, and the plurality of folding portions are arranged to be bent along the predetermined bending line. At least one bead.

The at least one bead may be formed by press molding from one surface of the pin array to the other surface.

A plurality of refrigerant tubes and a header coupled to the plurality of refrigerant tubes and extending from a first end to a second end, wherein the header is bent in a direction in which the first end and the second end are close to each other. It may include at least one bent portion.

The at least one bent portion may include a cut surface for cutting at least a portion of the header.

The at least one bent portion may include a support portion connecting at least a portion of the header so that the headers separated by the cut surface may be connected to each other.

A fin array may be inserted into the plurality of refrigerant tubes, and the fin array may include at least one notch corresponding to the at least one bent portion.

The at least one notch may be provided to remove at least a portion of the pin array, and the pin array may be bent in a direction in which the area of the at least one notch is reduced.

And a fin array provided with a water guide bone formed to discharge moisture generated during the heat exchange process, and the pin array may be bent to continue the water guide bone as the header is bent.

In addition, the heat exchanger according to the spirit of the present invention includes a casing provided on the wall and a heat exchanger arranged bent inside the casing, the heat exchanger, a plurality of refrigerant tubes and a header coupled to the plurality of refrigerant tubes And at least one bent portion provided to bend the header in one direction.

The heat exchanger may include a fin array fitted to the plurality of refrigerant tubes, and the fin array may be bent together with the header.

The bead shape can be reinforced to reinforce the strength, thereby folding the pin array in a predetermined form.

In addition, by including a spacing member in the fin array, it is possible to provide a high-performance heat exchanger is well ventilated and drained.

1 is a view showing an air conditioner according to an embodiment of the present invention.

2 is a view showing a heat exchanger according to an embodiment of the present invention.

3 is an exploded view illustrating a heat exchanger according to an embodiment of the present invention.

4 is a view showing the folding of the fin array of the heat exchanger according to an embodiment of the present invention.

5 is a view showing a fin array of the heat exchanger according to an embodiment of the present invention.

6 is a view showing the fin array of the heat exchanger with the refrigerant tube according to an embodiment of the present invention.

7 is a cross-sectional view of the fin array of the heat exchanger according to an embodiment of the present invention.

8 is a view showing a fin array of the heat exchanger according to another embodiment of the present invention.

9 is a cross-sectional view of the pin array of FIG. 8.

10 is a view showing an air conditioner according to another embodiment of the present invention.

11 is an exploded view illustrating a heat exchanger according to another embodiment of the present invention.

12 is a view illustrating a header of a heat exchanger according to another embodiment of the present invention.

FIG. 13 is a diagram illustrating a fin array of a heat exchanger according to another embodiment of the present invention. FIG.

Hereinafter, with reference to the accompanying drawings an embodiment according to the present invention will be described in detail.

The refrigeration cycle of the air conditioner consists of a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle circulates a series of processes consisting of compression-condensation-expansion-evaporation and can supply harmonized air heat exchanged with the refrigerant.

The compressor compresses and discharges the refrigerant gas at a high temperature and high pressure, and the discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into the liquid phase and releases heat to the environment through the condensation process.

The expansion valve expands the high temperature and high pressure liquid refrigerant condensed in the condenser into a low pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas at low temperature and low pressure to the compressor. The evaporator may achieve a freezing effect by heat exchange with the object to be cooled using latent heat of evaporation of the refrigerant. Through this cycle, the air conditioner can control the temperature of the indoor space.

The outdoor unit of an air conditioner refers to a part consisting of a compressor and an outdoor heat exchanger during a cooling cycle. The indoor unit of the air conditioner includes an indoor heat exchanger, and the expansion valve may be at either the indoor unit or the outdoor unit. Indoor and outdoor heat exchangers act as condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner becomes a heater, and when used as an evaporator, the air conditioner becomes a cooler.

1 is a view showing an air conditioner according to an embodiment of the present invention. In FIG. 1, an indoor air conditioner including an indoor heat exchanger is illustrated. For convenience of description, the indoor heat exchanger is referred to as a heat exchanger and an indoor air conditioner. In addition, FIG. 1 shows a schematic structure of a heat exchanger.

The air conditioner includes a casing 1, a blowing fan 3 disposed inside the casing 1, and a heat exchanger 10. The casing 1 includes a suction port 2a and a discharge port 2b, and the suction port 2a and the discharge port 2b may be formed at one side and the other side, respectively.

In addition, the air conditioner may include a suction duct 5 connected to the suction port 2a to suck air in the air-conditioned chamber, and a discharge duct 7 connected to the discharge port 2b to discharge air to the air-conditioned chamber. . That is, the air conditioner may be a duct type air conditioner installed on the ceiling.

Air sucked into the suction duct 5 according to the operation of the blower fan 3 flows into the casing 1 through the suction port 2a and exits to the discharge duct 7 along the discharge port 2b and is forced to circulate. do. The air forcibly circulating the air-conditioned chamber and the casing 1 may pass through the heat exchanger 10, exchange heat with the refrigerant, and be harmonized.

The heat exchanger 10 may include a refrigerant tube 20 through which the refrigerant flows, and a fin array 30 fitted into the refrigerant tube 20. The heat exchanger 10 may be installed with a predetermined slope with the bottom surface. The fin array 30 may be fitted from the lower portion to the upper portion of the refrigerant tube 20.

Moisture may be generated during the heat exchange between the refrigerant having a temperature difference and the air. One side of the fin array 30 may include a moisture guide bone 32 so that the moisture is discharged to the outside of the heat exchanger (10). The fin array 30 may be fitted to the coolant tube 20 so that the moisture guide valley 32 is located below.

Hereinafter, the detailed shape and structure of the heat exchanger 10 are demonstrated.

2 is a view showing a heat exchanger 10 according to an embodiment of the present invention, Figure 3 is a view showing an exploded heat exchanger 10 according to an embodiment of the present invention.

As described above, the heat exchanger 10 includes a refrigerant tube 20 and the fin array 30. In addition, the heat exchanger 10 may include

headers

41, 42, 43, 44 coupled to both ends of the refrigerant tube 20.

The coolant tube 20 may be provided in the form of a flat plate extending in the first direction (A). Inside the coolant tube 20, a flow path 24 (FIG. 6) through which a coolant flows may be provided, and the flow path may be partitioned by the partitions 23 and 6.

The coolant tubes 20 extend in the first direction A and may be arranged in two or more rows horizontally. For example, the refrigerant tube 20 may include a first refrigerant tube 21 and a second refrigerant tube 22 arranged horizontally in the third direction (C). A plurality of first refrigerant tubes 21 and second refrigerant tubes 22 may be spaced apart in the second direction B, respectively. That is, the first refrigerant tube 21 and the second refrigerant tube 22 may be stacked in the second direction (B) spaced apart at predetermined intervals, respectively.

The

headers

41, 42, 43, and 44 may extend in the second direction B to be coupled to one ends of the

respective refrigerant tubes

21 and 22. The

headers

41, 42, 43, and 44 may be provided in the form of a pipe having the partition walls 45 spaced apart from each other at predetermined intervals. The

headers

41, 42, 43, 44 of the present invention are separated into four spaces through three partitions 45. Depending on the design, the number of partition walls 45 and the number of separated spaces may vary.

The

headers

41, 42, 43, 44 are a pair of

first headers

41, 42 coupled to both ends of the first refrigerant tube 21, and a pair of both ends of the second refrigerant tube 22. It may include the second header (43, 44) of. For convenience of description, the headers located on the left side in FIGS. 2 to 3 are referred to as the first left header 42 and the second left header 44, and the headers located on the right side refer to the first right header 41 and the second right side. This is called the header 43. One surface of the first left header 42, the second left header 44, the first right header 41, and the second right header 43 may be provided.

A first pipe 51 and a second pipe 52 may be connected to the first right header 41 and the second right header 43, respectively. The first pipe 51 and the second pipe 52 may be connected to each one of the space formed by the partition wall (45). As shown in FIGS. 2 to 3, the four first pipes 51 and the second pipes 52 are spaced at predetermined intervals and coupled to the first right header 41 and the second right header 43, respectively. do.

The first left header 42 and the second left header 44 may include at least one through hole 46 on one surface coupled to each other. At least one through hole 46 may be provided in a space formed by the partition wall 45. The refrigerant may pass through the first left header 42 and the second left header 44 through the through hole 46.

A case where the refrigerant flows into the first pipe 51 will be described. The refrigerant is divided into four first pipes 51 and flows into the first right header 41. The refrigerant moves along the first refrigerant tube 21 in the first right header 41 to exchange heat, and reaches the first left header 42. The refrigerant introduced into the first left header 42 moves to the second left header 44 through the through hole 46, moves along the second refrigerant tube 22, and heat exchanges, and the second right header 43 ) Is discharged into the second pipe (52). When the coolant flows through the second pipe 52, the coolant passes through the second coolant tube 22 and the first coolant tube 21, and is discharged to the first pipe 51.

Refrigerant flows along these flow paths to condense or evaporate and release heat to or absorb heat from the environment. Fin array 30 may be coupled to the refrigerant tube 20 to allow the refrigerant to efficiently release or absorb heat.

The pin array 30 may be provided as one plate extending in the first direction A and the second direction B. FIG. The fin array 30 crosses the outer surface of the refrigerant tube 20 to serve to widen the heat exchange area between the air passing through the heat exchanger 10 and the refrigerant tube 20.

The fin array 30 may be fitted at one side of the plurality of refrigerant tubes 20 so as to contact the refrigerant tubes 20, respectively. That is, the fin array 30 may be fitted to the refrigerant tube 20 in the third direction (C).

4 is a view showing a state in which the fin array 30 of the heat exchanger 10 according to an embodiment of the present invention is folded, Figure 5 is a fin of the heat exchanger 10 according to an embodiment of the present invention The array 30 is shown.

The fin array 30 includes a plurality of heat exchange fins 80 formed by a plurality of insertion grooves 60, a plurality of folding portions 70, a plurality of insertion grooves 60, and a plurality of folding portions 70. ) May be included. The fin array 30 may be provided in the form of a plate extending in the first direction A and the second direction B, as shown in FIG. 5.

The plurality of insertion grooves 60 may be spaced apart in the second direction B so that the plurality of refrigerant tubes 20 may be inserted. Each of the insertion grooves 60 may be provided to accommodate both the first refrigerant tube 21 and the second refrigerant tube 22 arranged horizontally.

The plurality of folding parts 70 may be bent such that the plurality of insertion grooves 60 are disposed on one side of the pin array 30. The plurality of folding parts 70 may be bent in a predetermined direction and the pin array 30 may be provided in a predetermined shape. As shown in FIG. 4, the plate-shaped pin array 30 may be folded in a zigzag form at a predetermined interval and may be provided in the shape of the pin array 30 of FIGS. 2 to 3.

The plurality of folding parts 70 may include a first folding part 71 bent to one side and a second folding part 74 bent to the other side. In order to fold the pin array 30 in a zigzag manner, the first and

second folding portions

71 and 74 may be alternately arranged in the plate-shaped pin array 30.

The first folding part 71 and the second folding part 74 may be formed with

bent lines

72, 73, 75, and 76 formed in the second direction B, respectively. Each

bent line

72, 73, 75, 76 in Figure 5 is shown in the form of a dotted line.

That is, the first folding part 71 refers to a portion of a small area located between the pair of

first bends

72 and 73 of the pin array 30. In addition, the second folding portion 74 refers to a portion of a small area located between the pair of

second bend lines

74 and 75 of the pin array 30. As shown in FIG. 5, in the fin array 30, the heat exchange fin 80, the first folding portion 71, the heat exchange fin 80, and the second folding portion 74 are repeated in the first direction A. FIG. Can be arranged.

The first folding part 71 may be formed of a pair of

first bend lines

72 and 73 located at both sides. That is, the heat exchange fins 80 and the first folding part 71 may be divided based on the

first bend lines

72 and 73. As shown in FIG. 5, each of the first folding parts 71 may be spaced apart in the second direction B. As shown in FIG. Insertion grooves 60 are provided between the first folding portions 71 adjacent to each other in the second direction B. FIG. That is, the first folding part 71 and the insertion groove 60 may be repeatedly arranged in the second direction B. FIG.

The second folding part 74 may be formed as a pair of

second bends

75 and 76 located at both sides. That is, the heat exchange fins 80 and the second folding unit 74 may be divided based on the

second bend lines

75 and 76. As shown in FIG. 5, each of the second folding portions 74 may be spaced apart in the second direction B. As shown in FIG.

However, unlike the first folding part 71, the second folding part 74 includes a cutting line 78 between the second folding parts 74 adjacent in the second direction B. One side is located. In detail, a pair of cut portions 77 may be provided at both sides of each second folding portion 74.

The cut portion 77 may be connected to another cut portion 77 adjacent to the second direction B by a cut line 78. That is, the cutting line 78, the cutting unit 77, the second folding unit 74, and the cutting unit 77 may be repeatedly arranged in the second direction B. FIG.

The plate-shaped pin array 30 is punched into a predetermined shape by a press and provided in the shape shown in FIG. Thereafter, the gears may be folded in a predetermined direction as shown in FIG. 4 through toothed gears respectively positioned on both sides of the pin array 30. The pin array 30 folded through the gear may be pressed in one side and provided in the form of FIGS. 2 to 3.

In this case, a portion having a weak strength other than the bend lines 72, 73, 75, and 76 may be folded and the pin array 30 may not be bent in a predetermined shape. Accordingly, the pin array 30 may include at least one bead 90 arranged so that the plurality of folding parts 70 may be bent in a predetermined shape. The shape of the pin array 30 including the beads 90 will be described later.

A plurality of heat exchange fins 80 may be arranged in a first direction (A) and a second direction (B). The first folding part 71 may be located on one side of the heat exchange fin 80 in the first direction A, and the second folding part 74 may be located on the other side of the heat exchange fin 80. One side of the heat exchange fin 80 in which the first foldable portion 71 is positioned may be spaced apart from another heat exchange fin 80 positioned adjacent to the second direction (B). The other side of the heat exchange fin 80 in which the second folding portion 74 is positioned may be connected to another heat exchange fin 80 positioned adjacent to the second direction B. As shown in FIG.

As described above, the moisture guide bone 32 may be provided on one side of the pin array 30. Moisture guide bone 32 may be provided on one side of the heat exchange fin 80, the second folding portion 74 is located may extend in the second direction (B). Therefore, the moisture generated in the heat exchange process flows in the direction of gravity along the moisture guide bone 32 may be discharged to the outside of the heat exchanger (10).

6 is a view showing the fin array 30 of the heat exchanger 10 according to an embodiment of the present invention together with the

refrigerant tubes

21 and 22, and FIG. 7 is a heat exchanger according to an embodiment of the present invention. It is a figure which shows the cross section of the pin array 30 of (10).

Each of the heat exchange fins 80 may include a contact surface 82 forming the insertion groove 60, and connection surfaces 87 and 88 provided to be connected to the respective folding units 70. In addition, the heat exchange fins 80 may include a plurality of

louvers

84 and 86.

As shown in FIG. 6, when the fin array 30 is fitted to the coolant tube 20, the contact surface 82 refers to one surface of the heat exchange fin 80 contacting the coolant tube 20. The contact surface 82 may be in contact with the refrigerant tube 20 to increase the heat exchange efficiency.

In this case, the contact surface 82 may include a burring portion 83 for widening the contact area with the refrigerant tube 20. The burring portion 83 may be bent in a direction corresponding to the refrigerant tube 20 to increase the contact area between the heat exchange fins 80 and the refrigerant tube 20. In addition, the burring portion 83 may reinforce the strength of the heat exchange fins 80 to be bent in a predetermined form when the fin array 30 is folded.

The connection surfaces 87 and 88 may include a first connection surface 87 connected to the first folding portion 71 and a second connection surface 88 connected to the second folding portion 74. As described above, one side of the heat exchange fin 80 in which the first folding part 71 is located is called the first connection surface 87, and the other side of the heat exchange fin 80 in which the second folding part 74 is located. The side is called the second connection surface 88.

Therefore, the first connection surface 87 is disposed to be spaced apart from the other first connection surface 87 adjacent in the second direction B, and the second connection surface 88 is formed of another first adjacent surface in the second direction B. It may be arranged to be connected to the two connecting surface (88). That is, the second connection surface 88 may be formed extending in the second direction (B).

The plurality of

louvers

84 and 86 may be installed to change the path of the air that is heat exchanged through the heat exchanger 10. The plurality of

louvers

84 and 86 may include a first louver 84 inclined to one side in the third direction C and a second louver 86 inclined to the other side in the third direction C. FIG. have. For convenience of description, the louver adjacent to the first connection surface 87 is called the first louver 84, and the louver adjacent to the second connection surface 88 is called the second louver 86.

As shown in FIG. 7, a case in which air passes through the heat exchanger 10 from the first connection surface 87 to the second connection surface 88 will be described. The air introduced toward the first connection surface 87 passes through the first louver 84 and the path is changed to one side of the third direction C. FIG. The air passing through the plurality of first louvers 84 arranged in the third direction C is changed by the second louver 86 inclined toward the other side in the third direction C. FIG. In other words, the air passes through the heat exchanger 10 through a curved path, and thus the contact area between the air and the heat exchanger 10 is widened, and thus the heat exchange efficiency may be increased.

As described above, the pin array 30 may include at least one bead 90 to reinforce strength when folded. In the case of the second folding part 74, since the second folding part 74 has a relatively high strength by the second connection surface 88 extending in the second direction B, the second folding part 74 may be folded in a desired shape. However, in the case of the first folding part 71, since the first connection surfaces 87 are spaced apart from each other in the second direction B and thus have relatively low strength, the first folding part 71 may not be folded into a desired shape.

Therefore, the bead 90 may be positioned adjacent to the first folding part 71 to reinforce the strength when the first folding part 71 is folded. That is, the bead 90 may be provided on the first connection surface 87 and disposed outside the first louver 84.

Bead 90 may be formed to protrude in the first direction (A) to reinforce the strength when folded. In addition, the bead 90 may be formed by press molding from one surface of the pin array 30 to the other surface. The bead 90 may reinforce the strength of the first connection surface 87 so that the fin array 30 may be folded in a desired shape along the

first bend lines

72 and 73.

In order to increase the heat exchange efficiency, each heat exchange fin 80 should be disposed in the plurality of refrigerant tubes 20 spaced apart in the first direction (A). As described above, the pin array 30 is folded and stacked with an external pressure applied from one side. The external pressure is applied in the first direction A and the heat exchange fins 80 may be stacked. Therefore, each of the heat exchange fins 80 may include a spacing member for spaced apart in the first direction (A).

The gap maintaining member may be provided to protrude in the first direction A from the heat exchange fin 80. At this time, the space maintaining member may be formed only on at least a portion of the heat exchange fin (80).

8 is a view showing the fin array 30a of the heat exchanger according to another embodiment of the present invention, Figure 9 is a cross-sectional view of the fin array 30a of FIG.

In addition to the content described later, the description of FIGS. 1 to 7 is cited. In addition, the pin array (30a) is a water guide bone 32a, the insertion groove (60a), folding portions (70a, 71a, 74a), bent lines (72a, 73a, 75a, 76a), cut portion (77a), cutting line It may include a 78a, a heat exchange fin (80a), a contact surface (82a), a burring portion (83a), louvers (84a, 86a), pinned surface (87a, 88a), bead (90a).

The space keeping member may include a plurality of slits 92 formed to have the ridge 94 on one side. The slit 92 may be formed outside the

louvers

84a and 86a of each heat exchange fin 80a. That is, the slits 92 may be formed at positions where the beads 90a and some

louvers

84a and 86a described above are formed. In addition, the slit 92 may be formed only in some heat exchange fins 80a, and the beads 90a may be formed in the remaining portions. In addition, the slit 92 may be formed only on the first connection surface 87a.

As shown in FIG. 8, the slit 92 is formed on one heat exchange fin 80a, and a bead 90a is formed on the other heat exchange fin 80a adjacent in the second direction B. FIG. In this case, the first folding part 71a is present between the heat exchange fins 80a on which the beads 90a are formed, and the heat exchange fins 80a on which the slits 92 are formed may be cut.

Since the first folding part 71a may act as a resistance to the flow of air passing through the heat exchanger 10a, it is preferable to install the first folding part 71a at least. Therefore, the first folding part 71a may not be provided in the heat exchange fin 10a in which the slit 92 is formed to maintain the gap between the heat exchange fins 80a without the first folding part 71a. As shown in FIG. 9, the first folding part 71a does not exist in the cross section of the heat exchange fin 80a on which the slit 92 is formed.

Each slit 92 is formed of at least one heat exchange fin 80a positioned adjacent to the ridge 94 of the one slit 92 in the first direction A. The ridge 94 may be disposed to abut. That is, as shown in FIG. 9, when the fin array 30a is folded, the slits 92 may be formed to contact the raised portions 94 of the slits 92.

In addition, the gap maintaining member may include at least one tab (not shown) protruding to correspond to the gap of the heat exchange fins 80 spaced apart in the first direction A of each heat exchange fin 80a. The tab (not shown) may be provided to protrude toward one side from one surface of the heat exchange fin 80.

As described above, as illustrated in FIGS. 1 to 9, the first direction A, the second direction B, and the third direction C may be provided in a vertical direction, but the present invention is not limited thereto.

10 is a view showing an air conditioner according to another embodiment of the present invention. In FIG. 10, an indoor air conditioner including an indoor heat exchanger is illustrated. For convenience of description, the indoor heat exchanger is referred to as a heat exchanger and an indoor air conditioner. In addition, FIG. 10 illustrates a schematic structure of the heat exchanger.

The air conditioner may include a casing 101 and a heat exchanger 110 disposed inside the casing 101. In addition, the casing 101 may include a suction port 102a and a discharge port 102b, and a blowing fan 103 may be disposed inside the casing 101. A blade 105 is provided in the discharge port 102b to adjust the direction of the discharge air. In addition, the casing 101 may include a rear panel 104 installed on the wall. That is, the air conditioner may be a wall-mounted air conditioner fixed to the wall.

The heat exchanger 110 may include a plurality of refrigerant tubes 120 and

headers

141 and 142 coupled to the plurality of refrigerant tubes 120. The heat exchanger 110 may be bent and installed inside the casing 101. Although FIG. 10 illustrates that the heat exchanger 110 is bent once, this is only an example and the heat exchanger 110 may be installed bent a plurality of times.

In addition, the heat exchanger 110 may include a fin array 130 fitted to the plurality of refrigerant tubes 120. The pin array 130 may be formed of one folding pin or may be provided in various forms such as a plurality of pins.

The pin fin array 130 may include a moisture guide bone 132 to discharge moisture generated during the heat exchange process. In order to accommodate the water flowing along the water guide bone 132, a casing 101 may be provided with a drainage tray 106 adjacent to one end of the water guide bone 132.

Hereinafter, the detailed shape and configuration of the heat exchanger 110 will be described. 11 is an exploded view illustrating a heat exchanger 110 according to another embodiment of the present invention. The fin array 130 is omitted and shown.

The coolant tube 120 may be provided in the form of a flat plate extending in one direction. A coolant flow path (not shown) is provided inside the coolant tube 120, and the flow path may be divided into a plurality of partitions (not shown). The coolant tube 120 may be arranged in two or more rows horizontally. As shown in FIG. 11, the refrigerant tube 120 may include a first refrigerant tube 121 and a second refrigerant tube 122 arranged horizontally. A plurality of first refrigerant tube 121 and the second refrigerant tube 122 may be spaced apart from each other.

The

headers

141 and 142 may include a right header 141 and a left header 142 coupled to both ends of the coolant tube 120. The right header 141 and the left header 142 may be provided in pair so as to be coupled to the first refrigerant tube 121 and the second refrigerant tube 122, respectively.

The

headers

141 and 142 may be provided in the form of a pipe provided with a pair of partition walls 145 spaced at predetermined intervals therein. The pair of

headers

141 and 142 are separated into two spaces through a pair of partition walls 145. Depending on the design, the number of pairs of partition walls 145 and the number of separated spaces may vary.

The first pipe 151 and the second pipe 152 may be connected to the pair of right headers 141, respectively. Each of the first and

second pipes

151 and 152 may be connected to a space formed by a pair of partition walls 145. As shown in FIG. 11, two first pipes 151 and second pipes 152 are spaced at predetermined intervals and coupled to the right header 141, respectively.

The pair of left headers 142 may include at least one through hole 146 on one surface coupled to each other. At least one through hole 146 may be provided in a space formed by a pair of partition walls 145. The refrigerant may pass through the pair of left header 142 through the through hole 146.

The

headers

141 and 142 may be formed to extend from the first end 143 to the second end 144 so as to be coupled to the first refrigerant tube 121 and the second refrigerant tube 122 which are arranged in plurality. Can be. The plate 147 may be provided at the first end 143 and the second end 144 to prevent the refrigerant from flowing out of the

headers

141 and 142. The valve 147 may be provided in the same form as the partition wall 145.

In addition, the

headers

141 and 142 may include at least one bent portion 160 that is bent in a direction in which the first end 143 and the second end 144 are close to each other. That is, the at least one bent portion 160 may be provided to bend the

headers

141 and 142 in one direction.

12 is a diagram illustrating a header 142 of the heat exchanger 110 according to another embodiment of the present invention. 12 illustrates a bent left header 142, and the right header 141 may also be bent in the same form. Hereinafter, for convenience of explanation, the left header 142 is referred to as a header.

The header 142 may include a plurality of couplers 153 to couple with the plurality of refrigerant tubes 120. A pair of partition walls 145 may be coupled to the header 142 so as to be horizontal with the plurality of coupling holes 153. The at least one bent portion 160 may be located between the pair of partition walls 145.

The at least one bent portion 160 may include a cut surface 161 for cutting at least a portion of the header 142. In addition, the at least one bent portion 160 may include a support portion 162 connecting at least a portion of the header 142. That is, one side of the header 142 separated by the cutting surface 161 may be connected to each other by the support 162.

Cutting surface 161 may be formed in parallel with the plurality of refrigerant tubes (120). As shown in FIG. 12, the coolant tube 120 may be omitted on the same line where the cut surface 161 is formed. The depth or direction of forming the incision surface 161 may vary depending on the design.

13 is a view showing the fin array 130 of the heat exchanger 110 according to another embodiment of the present invention.

Since the cut surface 161 is provided horizontally with the coolant tube 120 or between the coolant tubes 120, the coolant tube 120 may not be bent along the bent header 142. However, the fin array 130 fitted into the coolant tube 120 may be bent together with the header 142.

The fin array 130 may include a plurality of insertion grooves 170 into which the refrigerant tube 120 is inserted. Each of the heat exchange fins 180 forming the fin array 130 may be provided with a plurality of

louvers

184 and 186. The plurality of

louvers

184 and 186 may be arranged to change the path of the air that is heat exchanged through the heat exchanger 110. The plurality of

louvers

184 and 186 may include a first louver 184 and a second louver 186 inclined in different directions, respectively.

In addition, the pin array 130 may include at least one notch 190 corresponding to the at least one bent portion 160. For the purpose of illustration, two notches 190 provided at intervals of three heat exchange fins 180 are represented.

The notch 190 may be provided to remove at least a portion of the pin array 130. As shown in FIG. 4, the notch 190 is provided in a crushed form in a 'v' shape on one side of the pin array 130. However, this is only an example, and the notch 190 may have various shapes.

The pin array 130 may be bent in a direction in which the area of the at least one notch 190 decreases. That is, the pin array 130 may be bent according to the bending of the header 142.

As described above, the moisture guide bone 132 may be provided on one side of the pin array 130. As the header 142 is bent, the pin array 130 may be bent so that the moisture guide bone 132 continues. Therefore, the condensed water may be seated in the drainage tray 106 along the moisture guide valley 132 in the bent heat exchanger 110.

The process in which the heat exchanger 110 is installed in the casing 101 will be briefly described. The heat exchanger 110, which is not bent, may be disposed in the casing 101, the bent portion 160 may be bent, and the heat exchanger 110 may be fixed to the casing 101. At this time, the header 142 bent by the support 162 is connected and can be easily installed. Since each part of the header 142 is fixed to the casing 101, the heat exchanger 110 may be fixed to the casing 101 even if the support part 162 is cut after installation.

In addition, in the above description of the air conditioner, the heat exchanger, and the heat exchange fin with reference to the accompanying drawings, the specific shape has been described mainly, but various modifications and changes can be made by those skilled in the art.

Claims

A plurality of refrigerant tubes extending in the first direction and spaced apart in the second direction;

And a fin array coupled to the plurality of refrigerant tubes.

The pin array,

A plurality of heat exchange fins disposed in contact with each of the refrigerant tubes;

A folding unit for connecting adjacent heat exchanger fins in the first direction;

An insertion groove formed between the heat exchange fins adjacent to each other in the second direction and having at least two refrigerant tubes arranged in the third direction;

Heat exchanger comprising a.
The method of claim 1,

Each heat exchange fin includes a pair of contact surfaces facing each other to form the insertion groove, and a pair of connection surfaces facing each other so as to be connected to the folding portion.
The method of claim 2,

The pair of connection surfaces include a first connection surface disposed to be spaced apart from each of the heat exchange fins adjacent to the second direction, and a second connection surface disposed to be connected to each heat exchange fin adjacent to the second direction. Heat exchanger characterized in that.
The method of claim 3, wherein

The folding part includes a first folding part arranged to connect the first connection surface in the first direction, and a second folding part arranged to connect the second connection surface in the first direction. group.
The method of claim 2,

And the pair of contact surfaces include a burring portion for widening a contact area with each of the refrigerant tubes.
The method of claim 3, wherein

The second connection surface is a heat exchanger, characterized in that it comprises a moisture guide bone formed in the second direction so that water generated during the heat exchange process can be discharged.
The method of claim 1,

Each heat exchange fin includes at least one bead arranged to be bent into a plurality of folding portions,

And the at least one bead is formed to protrude in the first direction.
The method of claim 1,

And each heat exchange fin includes a plurality of louvers to change a path of air that is heat exchanged through the heat exchanger.
The method of claim 8,

The plurality of louvers includes a first louver inclined to one side in the third direction and a second louver inclined to the other side in the third direction.
The method of claim 8,

Each heat exchange fin includes at least one bead arranged to be bent into a plurality of folding portions,

And the at least one bead is located outside the plurality of louvers.
The method of claim 1,

And each heat exchange fin includes a spacing member protruding in the first direction of each heat exchange fin to be disposed in the plurality of refrigerant tubes spaced apart in the first direction.
The method of claim 11,

The spacing member includes a plurality of slits formed to have a ridge on one side,

Wherein each slit is arranged such that the ridge of one slit and the ridge of another slit located in at least one heat exchange fin positioned adjacent to said first direction are in contact with each other.
The method of claim 11,

And the gap maintaining member includes at least one tab protruding from one surface of each of the heat exchange fins.
The method of claim 1,

At least two refrigerant tubes arranged in the third direction include a first refrigerant tube and a second refrigerant tube located side by side in the third direction.
The method of claim 14,

A pair of first headers coupled to both ends of the first refrigerant tube, and a pair of second headers coupled to both ends of the second refrigerant tube,

One side of the pair of first header and the pair of second headers includes at least one through hole so that the refrigerant can pass through the first refrigerant tube and the second refrigerant tube. Heat exchanger.
An air conditioner including a casing and a heat exchanger disposed inside the casing,

The heat exchanger,

Respective refrigerant tubes extending in a first direction and spaced apart in a second direction;

A fin fin array that is bent into a predetermined shape and coupled to each of the refrigerant tubes, the plurality of heat exchange fins having at least a portion thereof connected in the second direction, and water guides extending in the second direction along the plurality of heat exchange fins; Corrugated pin array;

Air conditioner comprising a.
The method of claim 16,

The fin array and each of the refrigerant tubes air conditioner, characterized in that coupled to the moisture guide bone is located on one side of the respective refrigerant tube.
The method of claim 16,

The heat exchanger is installed inside the casing to have a predetermined slope,

The fin array is air conditioner, characterized in that the moisture guide bone is arranged to be located below.
Each refrigerant tube,

A header coupled to each of the refrigerant tubes and extending from the first end to the second end;

And the header includes at least one bent portion bent in a direction in which the first end and the second end are close to each other.
The method of claim 19,

And the at least one bent portion comprises a cut surface for cutting at least a portion of the header.
The method of claim 20,

And the at least one bent portion includes a support portion connecting at least a portion of the header so that the headers separated by the cutaway surface can be connected to each other.
The method of claim 19,

A fin array fitted to each of the refrigerant tubes,

And the fin array includes at least one notch corresponding to the at least one bent portion.
The method of claim 22,

The at least one notch is provided to remove at least a portion of the pin array,

And the fin array is bent in a direction in which the area of the at least one notch is reduced.
The method of claim 19,

It includes a fin array provided with a water guide bone is formed so that the moisture generated during the heat exchange process,

And the fin array is bent such that the moisture guide bone continues as the header is bent.
Casing mounted on the wall,

It includes a heat exchanger is bent and disposed inside the casing,

The heat exchanger,

A plurality of refrigerant tubes,

A header coupled to the plurality of refrigerant tubes;

And at least one bent portion provided to bend the header in one direction.
The method of claim 25,

And said at least one bent portion comprises an incision surface for cutting at least a portion of said header.
The method of claim 25,

The heat exchanger includes a fin array that is fitted to the plurality of refrigerant tubes,

And the pin array is bent together with the header.