KR101572674B1 - Heat exchanger improving the drainage - Google Patents

Heat exchanger improving the drainage Download PDF

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Publication number
KR101572674B1
KR101572674B1 KR1020150102679A KR20150102679A KR101572674B1 KR 101572674 B1 KR101572674 B1 KR 101572674B1 KR 1020150102679 A KR1020150102679 A KR 1020150102679A KR 20150102679 A KR20150102679 A KR 20150102679A KR 101572674 B1 KR101572674 B1 KR 101572674B1
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KR
South Korea
Prior art keywords
radiating fin
heat exchanger
main body
heat
condensed water
Prior art date
Application number
KR1020150102679A
Other languages
Korean (ko)
Inventor
장영호
Original Assignee
그린테크 주식회사
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Priority to KR1020150102679A priority Critical patent/KR101572674B1/en
Application granted granted Critical
Publication of KR101572674B1 publication Critical patent/KR101572674B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00—Removing ice or water from heat-exchange apparatus
    • F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
    • 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
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/06—Safety or protection arrangements; Arrangements for preventing malfunction by using means for draining heat exchange media from 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
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/22—Safety or protection arrangements; Arrangements for preventing malfunction for draining

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

According to the present invention, a heat exchanger capable of easily draining condensate water comprises: a pair of tank parts installed in parallel with each other, and having a hollow part for distributing and circulating a refrigerant; multiple tubes whose both ends are connected with the tank part, having heat exchange medium transfer paths, and installed at a distance away from each other; and a radiation fin installed between the tubes, wherein a thin plate is formed in the corrugated form having mountain and valley parts, and including a radiation fin main body part with rubbers. At least one lateral end of the radiation fin main body part is protruding outwards from the edge of a tube and mountain and valley parts of the protruding radiation fin main body is cut in the width direction, thereby a condensate water induction outlet standing in the direction perpendicular to the tube is equipped. The condensate water induction outlet is in contact with the condensate water induction outlet of the radiation fin main body part located between adjacent tubes. Therefore, as condensate water of a heat exchanger is smoothly discharged, heat exchange efficiency can be improved.

Description

TECHNICAL FIELD [0001] The present invention relates to a heat exchanger for improving drainage performance,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a heat exchanger, and more particularly, to a heat exchanger using a radiating fin installed between tubes and mutually contacting to improve drainage.

Generally, the heat exchanger is provided with a passage portion through which the heat exchange medium can flow, and is designed to perform heat exchange with the outside air while the heat exchange medium flows through the passage portion. The type of the heat exchange medium and the heat exchange medium Various methods have been developed depending on the internal pressure. Typically, fin tube type, serpentine type, drawn cup type, parallel flow type, and the like are available

In such a heat exchanger, a heat exchanger core (generally referred to as a Heater Core, an Evap Core, a Radiator Core, or an Inter Cooler Core) in which heat exchange is mainly performed is composed of a header and a radiating fin and a tube which are stacked and fixed between the header.

The parallel flow type heat exchanger of the heat exchangers includes a pair of header tanks arranged side by side, a plurality of tubes disposed side by side between the header tanks and having both ends thereof inserted and fixed in the tube insertion holes formed in the header tank, And a heat-dissipating fin provided between the tubes, the heat-exchanging medium having a large heat-transfer area for effectively exchanging heat with the outside.

In the heat exchangers described above, a corrugated type heat dissipating fin is used as a conventional heat dissipating fin for widening the heat dissipating area. The corrugated heat-dissipating fin has a structure in which a plate material is wavy and wrinkled, and a louver is formed on the surface thereof.

Such a conventional radiating fin improves the heat radiation performance with air, increases the heat radiation area by adjusting the bending pitch of the radiating fin in order to reduce the discharge pressure of the compressor, and adjusts the louver angle or louver pitch of the radiating fin. And the like.

However, when the conventional heat radiating fin is used as an evaporator, air is brought into contact with a surface lower than the dew point temperature so that condensed water is formed on the surface of the heat exchanger, that is, the tube and the radiating fin There is a problem that the heat transfer characteristic of the heat exchanger is relatively lowered.

    Therefore, it is preferable to discharge the condensed water attached to the surface of the tube of the heat exchanger and the radiating fin as quickly as possible.

In view of this point, Korean Patent Publication No. 2003-0010971 discloses a heat dissipating fin for a heat exchanger. The posted radiating fins each have a structure in which an inserting portion having a supporting protrusion is formed at the upper and lower ends of the refrigerant tube contacting portion, and both the inserting portions are supported by the supporting protrusion while being inserted in a state where the refrigerant tube is seated.

Korean Patent Registration No. 10-1111282 discloses a condensed water drain heat exchanger. The radiating fin of the heat exchanger is formed in a rectangular wave shape in which the flat plate and the side plate are continuously bent at a predetermined interval. The side plate is formed so as to be in surface contact with the plate tube, and the drainage inducing member is formed to extend at the end of the flat plate.

However, since the drain guide piece of the radiating fin protrudes to the outside of the tube, there is a problem that the drain guide piece is easily deformed when an external force is applied or an external force is applied.

Korean Patent No. 0659568 discloses a heat exchanger pin, and Korean Patent Publication No. 2003-0020563 discloses a louver pin for a heat exchanger.

Korea Patent Publication No. 2003-0020563 Korean Patent Registration No. 10-1111282

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to improve the drainage of condensed water condensed on the surface of the radiating fins and the tubes by connecting the radiating fins radiating heat in contact with the tubes of the heat exchanger, And it is an object of the present invention to provide a heat exchanger which can easily drain condensed water that can prevent the heat radiation fins protruded by an external force from being easily deformed.

According to an aspect of the present invention, there is provided a heat exchanger including a pair of tank portions having a hollow portion for distributing and circulating a refrigerant, both ends being connected to a tank portion, And a radiating fin provided between the tubes and having a radiating fin body portion formed in a corrugated shape in which a thin plate has a crest portion and a valley portion and formed with louvers,

At least one end portion of the heat radiating fin main body portion includes a condensed water induction discharge portion protruding outward from an edge of the tube and protruding in a width direction of the protruded radiating fin body portion in the width direction to stand upright in a direction perpendicular to the tube, And is in contact with the condensed water induction discharge portion of the radiating fin body portion provided between the upper or lower side tubes adjacent to the radiating fin body portion.

In the present invention, the condensed water guiding and discharging portion includes a discharge extension portion extending from the main body of the heat radiating fin, and a reinforcement portion extending from the discharge extension portion and preventing deformation by external force. The reinforcing portion includes a flat portion constituting both ends of the condensed water guiding and discharging portion and a corrugated portion bent in a meandering shape positioned between the flat portion.

The heat exchanger using the radiating fin having improved drainage capability according to the present invention can enlarge the surface area with air passing therethrough and smoothly discharging the condensed water condensed on the surface of each radiating fin so that the heat exchange efficiency can be prevented from being lowered by the condensed water have. Also, since the discharge of condensed water is not performed smoothly, it is possible to reduce the growth of fungi, which causes odor.

1 is a partially cutaway perspective view of a heat exchanger in which drainage of condensed water according to the present invention is easy,
FIG. 2 is a perspective view showing a state where a radiating fin is installed between tubes according to the present invention,
Fig. 3 is an enlarged perspective view showing the radiating fin shown in Fig. 2,
4 is a perspective view showing another embodiment of the heat exchanger according to the present invention,
5 and 6 are perspective views showing other embodiments of the radiating fin according to the present invention,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a heat exchanger using a heat dissipation fin having improved drainage characteristics, one embodiment of which is shown in Figs.

Referring to the drawings, a heat exchanger 10 using a radiating fin having improved drainage characteristics according to the present invention is installed side by side and includes a pair of tank portions 11a and 12b having hollow portions 11a and 12a for distributing and circulating refrigerant, A plurality of tubes 20 installed in parallel to each other to communicate with the hollow portions 11a and 12a of the tank portions 11 and 12, And radiating fins (30) installed between the heat sink fins (30) to widen the heat radiation surface area. The tank portions 11, 12, the tube 20, and the radiating fins 30 are brazed and joined. That is, the joining of the tanks 11, 12 and the tube 20 to the radiating fins 30 is performed by melting the thread layer formed on the surface by being inserted into the brazing furnace in a state where the assembly is completed.

In the heat exchanger 10 constructed as described above, the tank portions 11 and 12 may be formed of a circular or square pipe having a cross section, and a cap 11b for sealing the both ends thereof, Baffles 11c and 12c are provided to divide the hollow portions 11a and 12a so as to lengthen the flow of the heat exchange medium. A plurality of heat exchanging medium passages are formed in the longitudinal direction of the tube 20. A plurality of ribs for broadening the heat dissipating surface area are formed in the inner circumferential surface of the heat exchanging medium passage. Can be formed.

The heat dissipation fins 30 are installed between the tubes 20 to widen the surface area of heat dissipation and to discharge the condensed water generated by the lowering of the temperature of the surface of the heat exchanger below the dew point temperature .

1 to 4, the heat radiating fin 30 has a heat radiating fin body portion 34 in which a thin plate is formed in a corrugated shape having a crest portion 31 and a valley portion 32 and has louvers 33 formed therein. At least one end portion of the heat radiating fin main body portion 34 protrudes outward from the edge of the tube and the central portion of the protruding radiating fin main body portion 34 and the valley portion 32 are cut in the width direction, And a condensed water guiding and discharging part 40 which is installed in a direction perpendicular to the longitudinal direction of the condensed water guiding and discharging part 40.

The condensed water guiding and discharging unit 40 may be formed on both sides of the main body 34 of the radiating fin as shown in FIGS.

The peak portions of the crest portion 31 and the valley portion 32 forming the heat radiating fin main body portion 34 may be formed in a smooth plane and the length (height) of the cut- The length of the condensed water guiding and discharging portion 40 may be different from the length of the condensed water guiding and discharging portion 40 in the vertical direction of the heat radiating fin main body portion 34, It is preferable that the thickness of the tube 20 is not more than half the thickness of the tube 20 so as to contact the end of the induction discharge unit 40 '(see FIG. 2).

4, the condensed water guiding and discharging unit 40 includes a discharge extension unit 41 extending from the heat radiating fin main body 34 and a discharge outlet 41 extending from the discharge extension unit 41, The reinforcing portion 42 may be provided. The reinforcing portion 41 includes a flat portion 42a constituting both ends of the condensed water guiding and discharging portion 40 and a corrugated portion 42b bent in a meandering shape positioned between the flat portion. The flat surface portion 42a may be formed in parallel with a portion where the louver 33 of the radiating fin main body portion 34 is formed so that the flow of condensed water can be smoothly performed.

The corrugated part 42b constituting the reinforcing part 42 is preferably composed of one to three corrugations in order to lower the adhesion force of the condensed water, that is, the surface tension. Although not shown in the drawings, the flat portion 42a of the reinforcing portion 42 is formed in at least one direction to increase the contact force (bonding force) when the flat portion 42a of the adjacent condensate induction and discharge portion 40 contacts the flat portion 42a. .

5 to 6, the condensed water guiding / discharging unit 40 has substantially the same configuration even when it is formed on both sides of the main body 24 of the radiating fin.

The heat exchanger using the heat dissipation fin having the improved drainage performance according to the present invention can be used for an air conditioner, a heat pump, a freezing device for a refrigeration warehouse, and an air conditioner for an automobile.

The heat exchanger (10) according to the present invention absorbs heat in the process of evaporation by supplying refrigerant. As the surface of the heat exchanger becomes lower than the dew point temperature, condensation water due to condensation is generated.

The condensed water generated in this way flows toward the condensate induction discharge unit 40 located in one direction, that is, the direction opposite to the direction in which the air blown by the blower flows, by the air passing through the heat exchanger 10 .

The condensed water thus moved flows mainly through the discharge extension portion 41 of the condensate induction discharge portion 40. In more detail, since the condensate induction discharge units 40 and 40 'installed between the tubes 20 are in contact with each other and continuously formed in the direction perpendicular to the tubes 20 of the heat exchanger, To the lower side edge of the heat exchanger (10). In particular, since the discharge extension portion 41 is formed in a continuous plane, the surface tension to which the condensed water adheres relatively decreases, thereby facilitating the discharge of the condensed water. Accordingly, the condensation is concentrated on the end side of the heat dissipating fin of the conventional heat exchanger, so that the discharge failure can be prevented.

Since the reinforcing portion 42 or the corrugated portion 42b is formed in the condensed water guiding and discharging portion 40, it is possible to prevent the condensed water guiding and discharging portion 40 from being easily bent by the impact force (external force) can do.

5 and 6, when the condensed water discharge inducing portions 40 and 40 are formed on both sides of the heat radiating fin main body portion 34 of the radiating fin 30, the blowing direction through the heat exchanger according to the present invention (When alternating in opposite directions to each other) of the air conditioner. In this heat exchanger, the discharge of the condensed water smoothly discharges the condensed water as described above.

As described above, the heat exchanger according to the present invention smoothly discharges the condensed water generated on the surface of the heat exchanger, thereby improving the heat exchange efficiency of the heat exchanger and fundamentally eliminating the cause of the odor generated by the condensed water have. In addition, the product value of the heat exchanger can be increased.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

The heat exchanger using the radiating fin with improved drainage capability of the present invention can be widely applied to various air conditioning systems such as a heat pump, an air conditioner, and a freezing device of a refrigeration warehouse.

10;
20; tube
30; radiating fins 34; Heat sink fin body
40,
41, a discharge extension part, 42,
42a, a flat portion 42b,

Claims (4)

A pair of tank portions 11 and 12 provided in parallel to each other and having a hollow portion for distributing and circulating the refrigerant, both ends connected to the tank portions 11 and 12, and heat exchange medium transfer paths are formed, A plurality of tubes 20 installed so as to be spaced apart from each other and a radiating fin body 20 formed between the tubes 20 and formed in a corrugated shape in which a thin plate has a crest portion 31 and a valley portion 32, And a radiating fin (30) having a portion (34)
At least one end portion of the heat radiating fin main body portion 34 protrudes outward from the edge of the tube 20 and the crest portion 31 and the valley portion 32 of the protruding radiating fin body portion 34 are cut in the width direction, The condensing water guiding and discharging unit 40 includes a condensing water guiding and discharging unit 40 installed between the radiating fin main body unit 34 and the adjacent tubes in the upper or lower direction, Is in contact with the condensate induced discharge portion 40 'of the main body portion 34'
The condensed water guiding and discharging part 40 includes a discharge extension part 41 extending from the radiating fin main body part 34 and a reinforcement part 42 extending outward from the discharge extension part 41 for preventing deformation by external force ),
The reinforcing portion 42 includes a flat portion 42a forming both ends of the condensed water guiding and discharging portion 40 and a corrugated portion 42b bent in a meandering shape positioned between the flat portion 42a Features a heat exchanger that facilitates drainage of condensate. delete delete The method according to claim 1,
Wherein the flat portion (42a) is formed with a bead portion for increasing the contact force of the flat portion of the adjacent heat exchanger.














KR1020150102679A 2015-07-20 2015-07-20 Heat exchanger improving the drainage KR101572674B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190036249A (en) 2017-09-27 2019-04-04 (주)쓰리브이테크놀러지 fin forming tool assembly improving the drainage
KR20210149312A (en) * 2020-06-02 2021-12-09 우진공업주식회사 Heat radiation fin for vehicle heater, heater unit and ptc heater device including the same
US11988462B2 (en) 2020-08-31 2024-05-21 Samsung Electronics Co., Ltd. Heat exchanger and air conditioner using the heat exchanger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190036249A (en) 2017-09-27 2019-04-04 (주)쓰리브이테크놀러지 fin forming tool assembly improving the drainage
KR20210149312A (en) * 2020-06-02 2021-12-09 우진공업주식회사 Heat radiation fin for vehicle heater, heater unit and ptc heater device including the same
KR102433010B1 (en) * 2020-06-02 2022-08-17 우진공업주식회사 Heat radiation fin for vehicle heater, heater unit and ptc heater device including the same
US11988462B2 (en) 2020-08-31 2024-05-21 Samsung Electronics Co., Ltd. Heat exchanger and air conditioner using the heat exchanger

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