KR101590564B1 - Heat exchanger for air conditioner - Google Patents

Heat exchanger for air conditioner Download PDF

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Publication number
KR101590564B1
KR101590564B1 KR1020150090049A KR20150090049A KR101590564B1 KR 101590564 B1 KR101590564 B1 KR 101590564B1 KR 1020150090049 A KR1020150090049 A KR 1020150090049A KR 20150090049 A KR20150090049 A KR 20150090049A KR 101590564 B1 KR101590564 B1 KR 101590564B1
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KR
South Korea
Prior art keywords
tank
heat exchanger
air
air conditioner
heat
Prior art date
Application number
KR1020150090049A
Other languages
Korean (ko)
Inventor
고영구
Original Assignee
그린테크 주식회사
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Application filed by 그린테크 주식회사 filed Critical 그린테크 주식회사
Priority to KR1020150090049A priority Critical patent/KR101590564B1/en
Application granted granted Critical
Publication of KR101590564B1 publication Critical patent/KR101590564B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/08—Fluid driving means, e.g. pumps, fans

Abstract

The present invention relates to a heat exchanger for an air conditioner and, more specifically, to a heat exchanger for an air conditioner, which makes the pressure of air blowing from a blower uniform. The heat exchanger for an air conditioner according to the present invention increases heat exchange efficiency by lowering the flow velocity of air using a second heat exchange part or a third heat exchange part, thereby uniformly cooling the air passing through the heat exchanger and sending the cooled air to the outside.

Description

Heat exchanger for air conditioner

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger for an air conditioner, and more particularly, to a heat exchanger for an air conditioner that uniformizes the pressure of air blown from a blower.

Generally, the air conditioner keeps the room temperature low or keeps it comfortable, and there is an integrated type and a separated type.

The air conditioner is divided into an indoor unit and an outdoor unit. The air conditioner includes a compressor, a condenser, a cooling fan, and the like in order to reduce noise. The indoor unit includes an evaporator and a blower.

The air conditioner is cooled by using an evaporator or a heat exchanger that absorbs the heat of air while changing the liquid state refrigerant into a gaseous state and blows air to the indoor space.

An air conditioner having a multi-fan disclosed in Korean Patent Laid-Open Publication No. 2003-0063876 is equipped with a blowing fan below the heat exchanger, and is equipped with a heat exchanger and an air conditioner, both of which are disclosed in Korean Patent Registration No. 10-0246385 The heating coil is disposed on the downstream side of the blowing fan so that the heat generated in the heating coil is prevented from reaching the blowing fan and the productivity is improved.

In general, the air conditioner is applied to reduce the noise and increase the air volume by applying a sirocco fan, such as an air conditioner having a multi-fan and an air-conditioner combined air conditioner.

However, in such an air conditioner, the flow rate of the air passing through the heat exchanger varies depending on the pressure difference received by the air blown from the blowing fan. The air passing through the heat exchanger under the high pressure has a disadvantage that the heat exchange efficiency is lowered because the air is passed before the heat exchange is performed because the flow rate is fast.

Korean Patent Publication No. 10-0246385: Combined air-conditioning and air-conditioning Korean Patent Laid-Open Publication No. 2003-0063876: air conditioner equipped with multi-fan

SUMMARY OF THE INVENTION The present invention provides a heat exchanger for an air conditioner capable of blowing uniformly cooled air by increasing heat exchange efficiency by additionally providing a heat exchanger at a portion where air flows at a high pressure under a high pressure I want to.

According to an aspect of the present invention, there is provided an air conditioner heat exchanger installed in a main body of an air conditioner for cooling or heating air blown by a blower, the air conditioner comprising: A plurality of first tubes arranged in parallel to each other to connect the first tank portion and the second tank portion and at least one first radiating fin provided between the first tubes, And third and fourth tank portions provided in a region where the pressure of air blown from the blower is relatively high and arranged in parallel with the first and second tank portions, A plurality of second tubes connecting the third tank and the fourth tank and arranged in parallel with each other, and at least one And a, a second heat exchanger having a second heat radiation fin

Wherein the second heat exchanging part is formed such that the third and fourth tank parts are formed to have the same length as the first and second tank parts and that the second tube and the second radiating fin are shorter than the first tube and the first radiating fin And is superimposed on the first heat exchanging portion.

Fifth and sixth tank portions installed in parallel with the third and fourth tank portions and spaced apart from each other, the first and second tank portions overlapping each other at a position corresponding to the second heat exchanging portion with the first heat exchanging portion interposed therebetween; And a third heat exchange unit having a plurality of third tubes connected to each other to connect the fifth tank unit and the sixth tank unit and arranged in parallel to each other and at least one third heat radiating fin installed between the third tubes.

The third and fourth tanks or fifth and sixth tanks corresponding to the outlet side of the blower further include an induction auxiliary radiating fin protruding between the first tubes to distribute the air supplied from the blower to both sides.

The air conditioner heat exchanger of the present invention is advantageous in that the air passing through the heat exchanger is uniformly cooled and blown out by increasing the heat exchange efficiency by slowing the flow rate of air by the second heat exchanger or the third heat exchanger.

1 is a partially cut-away sectional view of an air conditioner to which a heat exchanger for an air conditioner according to a first embodiment of the present invention is applied,
Fig. 2 is an exploded perspective view of the air conditioner heat exchanger applied to Fig. 1,
FIG. 3 is a side view of the air conditioner heat exchanger applied to FIG. 1,
4 is an exploded perspective view of a heat exchanger for an air conditioner according to a second embodiment of the present invention,
FIG. 5 is a side view of the air conditioner heat exchanger applied to FIG. 4,
6 is a cross-sectional view illustrating the flow of air according to the operation of the heat exchanger for an air conditioner according to the present invention,
7 is an exploded perspective view of a heat exchanger for an air conditioner according to a third embodiment of the present invention.

Hereinafter, a heat exchanger for an air conditioner according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 and 3 show a heat exchanger for an air conditioner according to a first embodiment of the present invention.

 FIG. 1 is a partially cutaway sectional view of an air conditioner to which a heat exchanger for an air conditioner according to a first embodiment of the present invention is applied. FIG. 2 is an exploded perspective view of a heat exchanger for an air conditioner applied to FIG. 1 shows a side view of a heat exchanger for an air conditioner applied to the present invention.

The heat exchanger for an air conditioner according to the present invention is also applied to an air conditioner separated into an indoor unit and an outdoor unit.

An indoor unit (hereinafter, referred to as an air conditioner) is installed in an indoor space such as a company office or a house living room, and blows the cooled air to an indoor space.

The air conditioner 1 according to the present invention is provided with a main body 10, a blower 20, and a heat exchanger 30 for an air conditioner according to the present invention.

The main body 10 has a rectangular column shape standing upright on the bottom surface of the indoor space. The main body 10 is provided with a space in which the heat exchanger 30 and the blower 20 according to the present invention are installed, And an air inflow part 17 through which air flows into the lower part.

The main body 10 has an example of a rectangular columnar shape, but is not limited thereto.

The blower 20 is a part to be mounted on the lower part of the main body, and a sirocco fan, which is a centrifugal blower for circulating the air by rotating several wings having a small height and a wide width, is applied.

The blower 20 blows the air introduced through the air inlet 17 to the upper portion of the main body 10 having the air outlet 15. [

The blower 20 has a high velocity of air at a high pressure in the central portion and blows air at a slow flow rate toward the edge.

The heat exchanger (30) according to the present invention is a portion provided inside the main body (10) so as to be inclined downwardly forwardly with an air discharge portion (15) and a blower (20) interposed therebetween.

The heat exchanger (30) cools the air while absorbing the heat of the air while changing the liquid refrigerant flowing in the heat exchanger into the gas state when the air blown from the blower (20) passes through the heat exchanger (30).

The heat exchanger (30) is provided with a first heat exchanger (40) and a second heat exchanger (50).

The first heat exchanging portion 40 is a slim plate-like portion that is provided adjacent to the outlet of the blower 20 through which the air is discharged.

The first heat exchanging unit 40 includes a first tank unit 41, a second tank unit 43, a first tube 45, a first radiating fin 47, and a first refrigerant supply pipe 49.

The first tank portion 41 and the second tank portion 43 are in the shape of a quadrangular pipe and each have an internal space through which refrigerant can flow, and are arranged in parallel to each other.

The first tank portion 41 and the second tank portion 43 have a plurality of first and second tube coupling holes communicating with the internal space at regular intervals on the surfaces corresponding to each other.

One side of the first tube 45 is installed in the first tube coupling hole of the first tank part 41 and the other side of the first tube 45 is installed in the second tube defect hole of the second tank 43, 41 and 43, respectively.

The plurality of first tubes 45 are arranged in parallel at regular intervals and connected to the first tank portion 41 and the second tank portion 43, respectively.

The first tube 45 serves as a passage through which the refrigerant in the first tank portion 41 or the second tank portion 43 can be moved.

One of the first radiating fins 47 is connected to the first tank 41 and the other side of the first radiating fins 47 is connected to the second tank 45 between the first tubes 41.

The first radiating fin 47 is a part that can increase the cooling effect by heat conduction and has a corrugated shape in order to widen the heat radiating surface area.

The first heat exchanging unit 40 is installed in the main body 10 so as to be positioned above the blower 20, and air having a high flow velocity passes through the center.

The second heat exchanging part 50 is formed in a slim plate shape and is installed on the upper side of the first heat exchanging part 40 and is disposed so as to be spaced apart from the blower 20 as compared with the first heat exchanging part 40.

The second heat exchanging portion 50 includes a third tank portion 51, a fourth tank portion 53, a second tube 55, a second radiating fin 57, and a second coolant supply pipe 59.

The third tank portion 51 and the fourth tank portion 53 are in the shape of a quadrangular pipe and are provided with internal spaces through which the refrigerant can flow, and are arranged in parallel and spaced apart from each other.

The third tank portion 51 and the fourth tank portion 53 have the same length as the first and second tank portions 41 and 43.

The third tank portion 51 and the fourth tank portion 53 have a plurality of third and fourth tube coupling holes communicating with the internal space at regular intervals on the surfaces corresponding to each other.

The third and fourth tube fitting holes are formed in a direction parallel to the first and second tube fitting holes formed in the first and second tank portions 41 and 45.

One end of the second tube 55 is installed in the third tube coupling hole of the third tank portion 51 and the other end of the second tube 55 is installed in the fourth tube coupling hole of the fourth tank 53, 51 and 53, respectively.

The plurality of second tubes 55 are arranged in parallel at regular intervals and connected to the third tank portion 51 and the fourth tank portion 53, respectively.

The second tube 55 serves as a passage through which the refrigerant in the third tank portion 51 or the fourth tank portion 53 can be moved.

The second tube 55 is formed to have a shorter length than the first tube 45 and the distance between the third tank 51 and the fourth tank 53 is such that the first and second tanks 41, Is shorter than the distance formed.

The plurality of second radiating fins 57 are connected to the third tank 51 at one side and the fourth tank 55 at the other side between the second tubes 55.

The second radiating fins 57 are portions that can increase the cooling effect by heat conduction and have a corrugated shape in order to widen the heat radiating surface area.

The second heat exchanging part (50) is installed so as to be superimposed on the upper part corresponding to the center part where the pressure of the air blown from the blower (20) of the first heat exchanging part (40) is relatively high.

The first and second refrigerant supply pipes 49 and 59 supply refrigerant to the first and second heat exchange units 40 and 50, respectively.

The first refrigerant supply pipe 49 is connected to the first tank 41 to supply the refrigerant to the second tank 43 through the first tube 45 and the second refrigerant supply pipe 59 is connected to the third tank portion 51 to supply the refrigerant to the fourth tank portion 53 through the second tube 55.

Also, a third refrigerant supply pipe may be provided in which the first and second tank portions 41 and 43 and the third and fourth tank portions 51 and 53 are interconnected.

Referring to FIG. 6, the operation of the heat exchanger for an air conditioner according to the first embodiment of the present invention will be described.

6 is a sectional view showing the flow of air according to the operation of the heat exchanger for an air conditioner according to the present invention.

When power is supplied to the air conditioner, the blower 20 is operated, and at the same time, the heat exchanger for the air conditioner operates and cool air is generated.

Air is introduced through the air inlet (17) while the blower (20) is operated, and the introduced air flows through the blower to the air conditioner heat exchanger.

The air blown from the blower 20 to the air conditioner heat exchanger 30 has the fastest flow rate of the air flowing from the central portion of the blower 20 to the center of the heat exchanger 30 for the air conditioner and the slower the flow rate toward the edge .

The air passing through the first heat exchanging unit 40 of the air conditioner heat exchanger 20 passes through the center of the first heat exchanging unit 40 at a high flow rate, Air to pass is generated.

The air having a low heat exchange efficiency passes through the second heat exchanging part 50 provided on the upper side of the first heat exchanging part 40 and performs heat exchange once again so that the first heat exchanging part 40 and the second heat exchanging part 40, (50).

That is, in the heat exchanger for air conditioner according to the first embodiment of the present invention, the second heat exchanging part (50) is provided above the first heat exchanging part (40) to increase the heat exchanging efficiency while reducing the air flow rate, So that the air can be discharged to the indoor space through the air discharge portion 15.

4 and 5 show a heat exchanger for an air conditioner according to a second embodiment of the present invention.

FIG. 4 is an exploded perspective view of the air conditioner according to the second embodiment of the present invention, and FIG. 5 is a side view of the air conditioner heat exchanger according to the second embodiment of the present invention.

The same reference numerals denote the same elements as those in the drawings.

The heat exchanger for an air conditioner according to the second embodiment of the present invention further includes a first heat exchanging unit 40 and a third heat exchanging unit 60 in the second heat exchanging unit 50.

The third heat exchanging unit 60 is installed below the first heat exchanging unit 40 so as to overlap the second heat exchanging unit 50 with the first heat exchanging unit 40 interposed therebetween.

The third heat exchanging part 60 includes a fifth tank part 61, a sixth tank part 63, a third tube 65, a third radiating fin 67 and a third refrigerant supply pipe 59.

The fifth tank portion 61 and the sixth tank portion 63 are in the shape of a quadrangular pipe and are provided with internal spaces through which the refrigerant can flow, and are arranged in parallel to each other.

The fifth tank portion 61 and the sixth tank portion 63 have the same length as the first and second tank portions 41 and 43.

The fifth tank portion 61 and the sixth tank portion 63 have a plurality of fifth and sixth tube coupling holes communicating with the inner space at regular intervals on the surfaces corresponding to each other.

The fifth and sixth tube fitting holes are formed in a direction parallel to the first and second tube fitting holes formed in the first and second tank portions 41 and 45.

One end of the third tube 65 is installed in the fifth tube coupling hole of the fifth tank portion 61 and the other end of the third tube 65 is installed in the fourth tube coupling hole of the sixth tank 63, 61 and 63, respectively.

The plurality of third tubes 65 are arranged in parallel at regular intervals and connected to the fifth tank unit 61 and the sixth tank unit 63, respectively.

The third tube 65 serves as a passage through which the refrigerant in the fifth tank portion 61 or the sixth tank portion 63 can be moved.

The third refrigerant supply pipe 59 is connected to the fifth tank 61 and supplies the refrigerant to the sixth tank 63 through the third tube 65.

The heat exchanger for an air conditioner according to the second embodiment of the present invention is provided with the third heat exchanger 60 closest to the portion of the air blown by the blower 20 at a high flow rate and the second heat exchanger 60 near the third heat exchanger 60 A first heat exchanging part 40 is provided and a second heat exchanging part 50 is provided above the first heat exchanging part 40. [

The heat exchanger for the air conditioner according to the second embodiment of the present invention is provided with the first, second and third heat exchanging parts (40, 50, 60) in triplicate, The heat exchange efficiency can be increased and the uniformly cooled air can be discharged to the indoor space.

7 is a partial perspective view of a second heat exchanger of a heat exchanger for an air conditioner according to a third embodiment of the present invention.

The same reference numerals denote the same elements as those in the drawings.

The heat exchanger for an air conditioner according to the third embodiment of the present invention is the same as the heat exchanger for an air conditioner according to the first embodiment of the present invention, but further includes an induction auxiliary radiating fin 70 in the second heat exchanging part 50.

The third and fourth tanks 51 and 53 have a high flow velocity and strike the air in the first heat exchanging part 40 which is not heat exchanged. Therefore, the refrigerant in the third and fourth tanks 51 and 53 is affected by the resistance of the air.

The induction auxiliary radiating fin 70 is provided on a surface of the blower of the third and fourth tanks 51 and 53 corresponding to the outlet side from which the air is discharged and distributes air received by the third and fourth tanks 51 and 53 And is brought into contact with the first heat exchanging part (40).

The induction auxiliary radiating fins (70) extend in the longitudinal direction of the third and fourth tanks (51, 53) and are bent in a direction in which air is blown.

The induction auxiliary radiating fin (70) has a tube receiving groove (71) and a radiating fin contact portion (75).

The radiating fin contact portion 75 is a portion that protrudes in the direction toward the blower 20 and has a width that becomes narrower toward the blower 20, and a plurality of portions are formed at predetermined intervals.

The tube receiving grooves 71 are formed between the radiating fin contact portions 75 and are spaced from each other by a predetermined distance and are formed with grooves corresponding to the plurality of first tubes 45, respectively.

When the second heat exchanging part 50 is installed so as to overlap with the first heat exchanging part 40, the radiating fin contact part 75 protrudes into the corrugated space of the first radiating fin 47 and partially contacts the first radiating fin 47, Radiating fins (47).

In the tube receiving groove 71, the second heat exchanging part 50 is superimposed on the first heat exchanging part 40, and the sides of the plurality of first tubes 45 in the air out direction are inserted.

The induction auxiliary radiating fin 70 is made of copper-like material capable of mutually conducting heat while being in contact with the first radiating fin 47, thereby increasing heat exchange efficiency.

The heat exchanger for the air conditioner according to the third embodiment of the present invention is provided with the induction auxiliary radiating fins 70 of the third and fourth tanks 51 and 53 to disperse the air resistance received by the third and fourth tanks 51 and 53, The first heat exchanging unit 40 and the second heat exchanging unit 50 are brought into contact with each other using a possible material so that heat exchange efficiency can be increased.

Up to now, the air conditioner heat exchanger according to the present invention has the second heat exchanging part (40) or the third heat exchanging part (50) slowing the flow rate of air to increase the heat exchange efficiency so that the air passing through the heat exchanger is uniformly cooled, There is an advantage that it can be.

Although the heat exchanger for an air conditioner according to the present invention has been described with reference to the exemplary embodiment shown in the drawings, the heat exchanger according to the present invention is merely exemplary and various modifications and equivalent embodiments can be made by those skilled in the art. I will understand that. Accordingly, the scope of the true technical protection of the present invention should be determined by the technical idea of the appended claims.

1: air conditioner heat exchanger 20: blower
30: Heat exchanger 40: First heat exchanger
41: first tank 43: second tank
45: first tube 47: first radiating fin
50: second heat exchanger 51: third tank
53: fourth tank 57: second heat radiating fin
55: second tube 60: third heat exchanger
61: fifth tank 63: sixth tank
65: third tube 67: third radiating fin
70: induction auxiliary radiating fin

Claims (4)

An air conditioner heat exchanger installed in a main body of an air conditioner for cooling or heating air blown by a blower,
A plurality of first tubes arranged in parallel and connecting the first tank and the second tank, and a plurality of first tubes arranged between the first tubes and the second tubes, A first heat exchanging unit having a first radiating fin to heat-exchange air to be blown;
A third tank disposed in parallel to the first and second tank portions and having the same length as the first and second tank portions, A plurality of second tubes connected to the third tank and the fourth tank and arranged parallel to each other and formed to have a shorter length than the first tube, A second heat exchange unit having a second radiating fin shorter than the first radiating fin;
Fifth and sixth tank portions installed in parallel with the third and fourth tank portions and spaced apart from each other, the first and second tank portions being disposed to overlap with each other at a position corresponding to the second heat exchanging portion with the first heat exchanging portion interposed therebetween; A third heat exchanger including a plurality of third tubes arranged in parallel to each other to connect the fifth tank unit and the sixth tank unit and at least one third heat radiating fin installed between the third tubes;
And an induction auxiliary radiating fin which distributes air supplied from the blower to both sides of the third and fourth tanks and is in contact with the first heat exchanging unit, in the third and fourth tanks corresponding to the outlet side of the blower,
Wherein the induction auxiliary radiating fin is formed with a radiating fin contact portion protruded so as to be narrowed toward the blower and between the radiating fin contact portions so that a plurality of the radiating fin contact portions are spaced apart from each other, Wherein a tube receiving groove is formed in the upper surface of the heat exchanger. delete delete delete
KR1020150090049A 2015-06-24 2015-06-24 Heat exchanger for air conditioner KR101590564B1 (en)

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KR1020150090049A KR101590564B1 (en) 2015-06-24 2015-06-24 Heat exchanger for air conditioner

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KR1020150090049A KR101590564B1 (en) 2015-06-24 2015-06-24 Heat exchanger for air conditioner

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KR101590564B1 true KR101590564B1 (en) 2016-02-01

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990074074A (en) * 1998-03-06 1999-10-05 윤종용 Air conditioner indoor unit
KR100246385B1 (en) 1997-03-12 2000-04-01 구자홍 Airconditioner for cooling and heating room
KR20000050913A (en) * 1999-01-15 2000-08-05 윤종용 Method for cutting LCD unit cell and method for processing corner
JP2002243265A (en) * 2001-02-15 2002-08-28 Daikin Ind Ltd Air conditioner
KR20030063876A (en) 2002-01-24 2003-07-31 엘지전자 주식회사 air conditioner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100246385B1 (en) 1997-03-12 2000-04-01 구자홍 Airconditioner for cooling and heating room
KR19990074074A (en) * 1998-03-06 1999-10-05 윤종용 Air conditioner indoor unit
KR20000050913A (en) * 1999-01-15 2000-08-05 윤종용 Method for cutting LCD unit cell and method for processing corner
JP2002243265A (en) * 2001-02-15 2002-08-28 Daikin Ind Ltd Air conditioner
KR20030063876A (en) 2002-01-24 2003-07-31 엘지전자 주식회사 air conditioner

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