KR101543635B1

KR101543635B1 - A Heat Exchanger with Improved drainage efficiency

Info

Publication number: KR101543635B1
Application number: KR1020090018323A
Authority: KR
Inventors: 이덕호; 전영하; 임홍영; 오광헌; 민은기
Original assignee: 한온시스템 주식회사
Priority date: 2009-03-04
Filing date: 2009-03-04
Publication date: 2015-08-11
Also published as: KR20100099805A

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger provided with a condensed water discharge clip and a heat exchanger for separating the header tank from a header tank by using a protruding support portion to form a drainage space to smoothly discharge condensed water accumulated at a lower end of the heat exchanger.

More specifically, the present invention relates to a tube having a plurality of tubes, A pin interposed between the tubes; An upper and lower header tank coupled to both ends of the tube; A lower header tank, and a lower header tank, An extension extending from both sides of the receiving portion in the height direction of the lower header tank; A fixing part connected to the extending part and having a shorter distance between the both ends than the distance between the opposite ends of the supporting part so as to be closely fixed to the tip of the tube; A protruding support portion protruding inwardly along the receiving portion, the extending portion, and the fixing portion so as to be in contact with the lower header tank; And a condensed water discharge clip constructed to include the condensed water discharge clip.

Heat exchanger, automotive air conditioner, condensate, drain hole, drainage member

Description

[0001] The present invention relates to a heat exchanger having improved drainage performance,

2 is a perspective view of a conventional heat exchanger in which a condensate discharger is installed, and FIG. 3 is a perspective view of a conventional heat exchanger in which a guide plate is installed .

Referring to FIG. 1, a conventional heat exchanger includes a plurality of tubes 11 having flow paths therein and arranged at regular intervals, a fin 12 interposed between the tubes 11, And a lower header tank 13 (14). Hereinafter, an evaporator using a heat exchanger will be described.

The conventional evaporator takes a lot of heat from the surroundings during operation and the surface of the evaporator is lower in temperature than the ambient temperature so that condensation water is condensed around the condensed water and the condensed water is condensed by gravity through the lower header tank 14 . However, in the evaporator thus constructed, the condensed water does not completely discharge below the lower header tank 14 at the end of operation, and the condensed water, which is the space between the lower end of the tube 11 and the lower header tank 14, The surface tension acting between the condensed water space 20 and the condensed water in the space 20 is larger than the gravity acting on the condensed water so that a part of the condensed water remains in the condensed water space 20. The residual condensed water disturbs the air flow as well as the problem of the propagation of the bacteria and the resulting odor, thereby deteriorating the heat exchange performance between the evaporator and the outside air.

In order to solve the above problems, the heat exchanger shown in Figs. 2 and 3 has been disclosed.

2, the heat exchanger 10 includes an upper header tank 13 and a lower header tank 14, a plurality of tubes 11 communicating with the upper and lower header tanks 13 and 14, A pin 12 provided between the tubes 11 and a fitting portion 31 fitted to the tip of the tube 11 and forming a connecting portion 32 for connecting the fitting portion 31 And a condensed water discharger (30). Therefore, it is possible to quickly and quickly discharge the condensed water to maintain the sanitary and durability of the heat exchanger.

3, the heat exchanger 10 includes a plurality of tubes 11 having flow paths therein and arranged at regular intervals, fins 12 interposed between the tubes 11, And includes upper and lower header tanks 13 and 14 coupled to both ends of the lower header tank 14. Between the fin 12 and the lower header tank 14, 11 and 12 and a guide plate 40 having a circular arc shape is installed to drain the condensed water generated from the tube 11 and the pin 12 to the outside through the rear portion. The guide plate 40 is installed in a space separated between the fin 12 and the lower header tank 14 and is fixed to the tube 11 by a tube insertion groove 41. Accordingly, the condensed water generated from the tube 11 and the fin 12 can be drained smoothly to the outside, and condensation water can be prevented from accumulating in the lower header tank 14.

However, in the case of the heat exchanger 12 shown in FIGS. 2 and 3, the fitting portion 31 of the condensed water discharger 30 must be inserted one by one between the tubes 11, Since the tube 11 must be inserted into the tube 41, it is cumbersome and the working time and labor are consumed and the productivity is deteriorated in mass production.

Therefore, by making the waterway so that the condensate does not accumulate in the header tank, smooth discharge of condensed water is prevented, thereby preventing the smell problem and improving the heat exchange performance. It is urgent to develop a structure for

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a condensed- And to provide a heat exchanger having an improved drainage property for allowing the condensed water to be smoothly discharged.

The present invention relates to a plasma processing apparatus comprising: a plurality of tubes (110) having flow paths therein and arranged at regular intervals; A pin (120) interposed between the tubes (110); Upper and lower header tanks (130) (140) coupled to both ends of the tube (110); (210) formed at a lower end of the lower header tank (140); An extension 220 extending along both sides in the height direction of the lower header tank 140 from the receiving unit 210; A fixing part 230 connected to the extension part 220 and having a shorter distance n between both ends than the distance m between the opposite ends of the receiving part 210 so as to be closely fixed to the tip of the tube 110, ; A protruding support portion 250 protruding inwardly along the support portion 210, the extension portion 220, and the fixing portion 230 so as to be in contact with the lower header tank 140; And a condensed water discharge clip (200) comprising the condensed water discharge clip (200).

The present invention is characterized in that an insertion guide portion 240 is formed extending from the fixing portion 230 to the upper end and extending in a direction opposite to the fixing portion 230 which is in close contact with the tip of the tube 110 .

In the meantime, the thickness x of the condensed water discharge clip 200 is smaller than the pitch y of the tube 110.

The present invention is characterized in that a connecting portion 260 extending in the longitudinal direction of the heat exchanger 100 is formed at the receiving portion 210 to connect the adjacent condensed water discharge clips 200.

In the present invention, a drain hole 261 is formed at the center of the connection portion 260, and a groove 262 formed to be long along the connection direction is connected between the drain hole 261 and the adjacent protrusion support portions 250 And the groove 262 is formed so as to be inclined downward toward the drain hole 261. As shown in FIG.

The present invention eliminates the need for a separate joining operation when installing a structure for smoothly discharging the condensed water formed on the surface and inside of the evaporator, and restores the structure to the heat exchanger by restoring the material itself, thereby shortening the production time and manpower The efficiency of the system can be increased.

A heat exchanger is a device that transfers heat from a high temperature fluid to a low temperature fluid through a heat transfer wall and is used in heaters, coolers, evaporators and condensers.

When the low-temperature low-pressure refrigerant gas is compressed by the compressor, the high-temperature high-pressure refrigerant gas is introduced into the condenser, and the high-temperature high-pressure refrigerant gas is introduced into the condenser, And the refrigerant is cooled to a low temperature and high pressure refrigerant liquid. The refrigerant liquid is sent to the expansion valve. When the refrigerant passes through the small hole of the expansion valve, both the pressure and the temperature are lowered to become the low temperature low pressure refrigerant liquid. Moves along the tube of the evaporator, absorbs heat from the surroundings, and evaporates to a low-temperature, low-pressure refrigerant gas. At this time, if hot air in the room is blown through the ducts of the cold evaporator, it becomes cold air, and the cooling air is provided by supplying the air to the room.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 4 is a front view of the condensed water discharger according to the first embodiment of the present invention, FIG. 5 is a perspective view of the condensed water discharger according to the first embodiment of the present invention, FIG. 6 is a perspective view showing the condensed water discharger according to the first embodiment of the present invention, FIG. 7 is a perspective view of the condensed water discharger according to the first embodiment of the present invention mounted on a heat exchanger, FIG. 8 is a front view of the condensed water discharger according to the second embodiment of the present invention, and FIG. 9 is a perspective view of the condensed water discharger according to the second embodiment of the present invention, FIG. 10 is an enlarged side view of the condensed water discharger according to the second embodiment of the present invention mounted on the heat exchanger, FIG. 12 is a perspective view of the condensed water discharger according to the third embodiment of the present invention, FIG. 13 is a perspective view of the condensed water discharger according to the third embodiment of the present invention, Fig. 14 is a front view of a state in which the condensed water discharger of the third embodiment according to the present invention is mounted on the heat exchanger, Fig. 15 is a perspective view of the condensed water discharger of the fourth embodiment, FIG. 16 is a front view of the condensed water discharger according to the fifth embodiment of the present invention mounted on the heat exchanger, FIG. 17 is a front view of the condensed water discharger according to the fifth embodiment of the present invention mounted on the heat exchanger Front view.

Example 1

Referring to FIGS. 4-7, Embodiment 1 includes a heat exchanger 100 and a condensate discharge clip 200. The heat exchanger 100 includes upper and lower header tanks 130 and 140 and a tube 110 and a fin 120. The condensed water discharge clip 200 includes a receiver 210 and an extension 220, The fixing part 230, and the protruding support part 250. [0042] As shown in FIG.

Referring to FIG. 7, the heat exchanger 100 includes a header (not numbered) having a tube insertion hole (not numbered) on one side thereof; An upper header tank 130 and a lower header tank 140 formed by joining tanks (not designated by reference numerals) forming the heat exchange medium flow path in combination with the header (not numbered); An inlet pipe (not given a reference numeral) and an outlet pipe (not shown) provided in the upper header tank 130 or the lower header tank 140, respectively; A tube 110 having both ends fixed to a tube insertion hole (not numbered) of the header (not numbered) to form a heat exchange medium flow path; And a pin (120) interposed between the tube (110). Since the heat exchanger 100 is the same as a conventional heat exchanger, a detailed description thereof will be omitted. Hereinafter, an evaporator using a heat exchanger will be described as an example.

4 and 5, the condensed water discharge clip 200 includes a receiving unit 210 positioned at a lower end of the lower header tank 140, a lower header tank 140 disposed upwardly from the receiving unit 210, A fixing part 230 formed to be connected to the extension part 220 and concavely fixed to the front end of the tube 110 so as to be fixed to the front end of the tube 110, And a protruding support 250 protruding inwardly along the support part 210, the extension part 220 and the fixing part 230 so as to come into contact with the fixing part 230. The overall shape of the protruding support part 250 is a 'C' . The condensed water discharge clip 200 is preferably formed of a resilient member detachably attachable to the lower header tank 140 by the restoring force of the material itself.

4 and 5, the receiving unit 210 supports the lower end of the lower header tank 140 to support the heat exchanger 100. [ The distance m between both ends of the receiving part 210 may be equal to or greater than the length of the lower end of the lower header tank 140. [

4 and 5, the extension part 220 extends from both sides of the receiving part 210 in the height direction of the lower header tank 140, and the fixing part 230 and the receiving part 210). At the same time, when the fixing part 230 to be described later is detachably attached to the lower header tank 140, it is necessary to provide elasticity in the extension part 220.

4 and 5, the fixing part 230 extends from the extension part 220 and is brought into close contact with the tip of the tube 110 located on the lower header tank 140 side. And the condensed water discharge clip 200 is fixed to the lower header tank 140 in close contact with the fixed portion 230. The separation distance n is formed to be smaller than the distance m between both ends of the receiving unit 210 so that the distance between the lower header tank 140 ) Is not easily released upon bonding.

4 to 6, the protruding support 250 may protrude to the inside of the condensed water discharge clip 200 along the support 210, the extension 220, and the fixing part 230 have. The protruding support part 250 is in close contact with the lower header tank 140 to support the lower header tank 140 and to separate the support part 210 and the extension part 220 from the lower header tank 140 A space for discharging the condensed water can be formed. It is preferable that the portion where the protruding support portion 250 contacts the lower header tank 140 is rounded as shown in FIG.

Example 2

Referring to FIGS. 8-11, a second embodiment includes a heat exchanger 100 and a condensate discharge clip 200. The heat exchanger 100 includes upper and lower header tanks 130 and 140 and a tube 110 and a fin 120. The condensed water discharge clip 200 includes a receiver 210 and an extension 220, The fixing part 230, the insertion guide part 240, and the protruding support part 250. [0041] As shown in FIG. The heat exchanger 100 and the condensed water discharge clip 200 are the same as those of the first embodiment described above. The following description will focus on differences between the insertion guide part 240 and the protrusion supporting part 250 which are different from the first embodiment.

8 to 10, the insertion guide part 240 extends from the upper end of the fixing part 230 and is opposed to the direction in which the fixing part 230 is bent so as to be in close contact with the distal end part of the tube 110 As shown in FIG. Therefore, the extension portion 220, the fixing portion 230, and the insertion guide portion 240 may be formed as an S shape as a whole. Since the fixing portion 230 is detachably attached to the tip portion of the tube 110 by elastic force, the fixing portion 230 is difficult to be coupled to the lower header tank 140. When the insertion guide portion 240 is formed on the upper end of the fixing portion 230 in the direction opposite to the fixing portion 230, the distance between the insertion guide portions 240, Is greater than the separation distance (n) between the both ends of the fixed portion, the coupling with the lower header tank 140 can be facilitated.

8 to 11, the protrusion supporting part 250 protrudes inward of the condensed water discharging clip 200 and is inserted into the condensing water discharging clip 200 through the receiving part 210, the extending part 220, the fixing part 230, But may also be formed inside the insertion guide portion 240. The protrusion supporting portion 250 formed at the upper end of the insertion guide portion 240 when formed inside the insertion guide portion 240 is the same as the protrusion supporting portion 250 of the first embodiment described above, And may be formed so as to extend to the protrusion supporting portion 250. Accordingly, as the protrusion support portion 250 gradually protrudes from the portion where the lower header tank 140 is engaged with the lower header tank 140, the coupling of the lower header tank 140 and the condensed water discharge clip 200 can be facilitated .

Example 3

Referring to Figs. 12 to 14, the third embodiment includes a heat exchanger 100 and a condensate discharge clip 200. The heat exchanger 100 and the condensed water discharge clip 200 are the same as those in the first embodiment, and the following description will focus on the connection part 260, which is a difference.

Referring to FIGS. 12 and 13, the condensed water discharge clip 200 may be coupled to the lower header tank 140 to surround the lower end of the lower header tank 140. The longitudinal direction of the lower header tank 140 in the condensed water discharge clip 200 may be defined as the thickness 'x' of the condensed water discharge clip 200. The distance between adjacent tubes 110 of the heat exchanger 100 may be defined as 'y'. Since the fixing portion 230 of the condensed water discharge clip 200 is fixedly attached to the tip of the tube 110, the thickness x of the condensed water discharge clip 200 is preferably smaller than the spacing pitch y between the tubes. Do. That is, the thickness x of the condensate discharge clip 200 is preferably equal to or less than the spacing pitch y between the tubes, and the range may vary within a range of 10 to 100%.

12 to 14, the connecting portion 260 may be formed in the longitudinal direction of the heat exchanger 100 in the receiving portion 210. [ A plurality of condensed water discharge clips 200 can be connected by the connecting portions 260 and the connecting portions 260 are formed so as to connect adjoining receiving portions 210 between adjacent condensed water discharge clips 200 .

Example 4

Referring to FIG. 15, the fourth embodiment includes a heat exchanger 100 and a condensate discharge clip 200. The heat exchanger 100 and the condensed water discharge clip 200 are the same as those of the first to third embodiments and will be described below with reference to the drain hole 261 and the groove 262 which are different from each other.

15, the drain hole 261 may be formed at the center of the connection portion 260 and the condensed water discharged through the space separated between the lower header tank 140 and the condensed water discharge clip 200 So that it can be discharged more smoothly. The shape of the drain hole 261 may be various shapes such as a rectangle as well as a circular shape, and it is preferable that the drain hole 261 extends through the center of the connection portion 260 to the bottom surface.

Referring to FIG. 15, the groove 262 may be formed to be long in the connection direction by connecting between the protrusion support 250 of the condensed water discharge clip 200 at the adjacent both ends and the drain hole 261. The grooves 262 are preferably recessed grooves of a hollow semicircular shape, but may be formed with various depressed grooves. The groove 262 is for discharging the condensed water discharged through the space separated between the lower header tank 140 and the condensed water discharge clip 200 to the drain hole 261 and discharging it. And a groove 262 connected to the drain hole 261 in the groove 262 connected to the protruding support 250. The groove 262 may be formed to be gradually inclined downward.

Example 5

Referring to FIGS. 16 and 17, the fifth embodiment includes a heat exchanger 100 and a condensate discharge clip 200. The heat exchanger 100 and the condensed water discharge clip 200 are the same as those in the first to fourth embodiments, and the differences will be mainly described below.

Referring to FIGS. 16 and 17, the spacing between the condensed water discharge clips 200 in the state where the condensed water discharge clips 200 are installed in the heat exchanger 100 can be defined as 'z'. The spacing pitch y between the tubes 110 has been described above. It is preferable that the fixing part 230 of the condensed water discharge clip 200 is fixedly attached to the tip of the tube 110 so that when the condensed water discharge clip 200 is coupled to the tube 110, The relationship between the spacing pitch (y) and the spacing pitch (z) between the condensing water discharge clips 200 becomes y = z. When the fixing portions 230 of the condensed water discharge clips 200 are alternately coupled to the odd-numbered or even-numbered tubes 110 from one side without being connected to the tubes 110, The relationship between the pitch y and the spacing pitch z between the condensate discharge clip 200 is 2 * y = z. When the fixing portions 230 of the condensed water discharge clips 200 are coupled not only to the tubes 110 but also between the adjacent tubes 110, ) And the spacing pitch z between the condensate discharge clip 200 becomes 0.5 * y = z. Accordingly, the spacing pitch z between the condensate discharge clips 200 may be a multiple of the spacing pitch y of the tube 110, and the range may be variously formed within a range of rational numbers.

The technical idea should not be interpreted as being limited to the above-described embodiment of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, such modifications and changes are within the scope of protection of the present invention as long as it is obvious to those skilled in the art.

1 is a perspective view showing a state in which condensed water is accumulated under a conventional heat exchanger;

2 is a perspective view of a conventional heat exchanger in which a condensed water discharger is installed;

3 is a perspective view showing a state in which a guide plate is installed in a conventional heat exchanger.

4 is a front view of the condensed water discharger of Embodiment 1 according to the present invention.

5 is a perspective view of a condensed water discharger according to the first embodiment of the present invention.

6 is a side enlarged view of a condensed water discharger according to the first embodiment of the present invention mounted on a heat exchanger.

7 is a perspective view of a condensed water discharger according to the first embodiment of the present invention mounted on a heat exchanger.

8 is a front view of a condensed water discharger according to a second embodiment of the present invention.

9 is a perspective view of a condensed water discharger according to a second embodiment of the present invention.

10 is a side enlarged view of a state in which the condensed water discharger of Embodiment 2 according to the present invention is installed in a heat exchanger.

11 is a perspective view of a condensed water discharger according to a second embodiment of the present invention mounted on a heat exchanger.

12 is a perspective view of a condensed water discharger according to a third embodiment of the present invention;

13 is a perspective view of a condensed water discharger according to a third embodiment of the present invention mounted on a heat exchanger.

14 is a front view of the condensed water discharger according to the third embodiment of the present invention mounted on a heat exchanger.

15 is a perspective view and an enlarged view of a main part of a condensed water discharger according to a fourth embodiment of the present invention.

16 is a front view of the condensed water discharger according to the fifth embodiment of the present invention mounted on a heat exchanger.

17 is a front view of the condensed water discharger according to the fifth embodiment of the present invention mounted on a heat exchanger.

Description of the Related Art

10: Heat exchanger

11: tube 12: pin

13: upper header tank 14: lower header tank

20: Condensate space

30: Condensate discharger

31: fitting portion 32: connecting portion

40: guide plate 41: tube insertion groove

100: heat exchanger

110: tube 120: pin

130: upper header tank 140: lower header tank

200: Condensate drain clip

210: Support part 220: Extension part

230: fixing part 240: insertion guide part

250: protrusion supporting portion 260:

261: drain hole 262: groove

m: Distance between both ends of base part n: Distance between both ends of fixing part

x: thickness of the condensate discharge clip y: pitch between the tubes

z: spacing between condensate discharge clips

Claims

A plurality of tubes 110 having flow paths therein and arranged at regular intervals; A pin (120) interposed between the tubes (110); Upper and lower header tanks (130) (140) coupled to both ends of the tube (110); The heat exchanger (100)

A receiving part 210 formed at a lower end of the lower header tank 140; An extension 220 extending along both sides in the height direction of the lower header tank 140 from the receiving unit 210; A fixing part 230 connected to the extension part 220 and having a shorter distance n between both ends than the distance m between the opposite ends of the receiving part 210 so as to be closely fixed to the tip of the tube 110, ; A protruding support portion 250 protruding inwardly along the support portion 210, the extension portion 220, and the fixing portion 230 so as to be in contact with the lower header tank 140; And a condensed water discharge clip (200) comprising the condensed water discharge clip (200)

Wherein the thickness (x) of the condensate discharge clip (200) is less than the spacing pitch (y) of the tube (110).

And an insertion guide portion (240) extending from the fixing portion (230) to the upper end and extending in a direction opposite to the fixing portion (230) closely attached to the tip of the tube (110) heat transmitter.

3. The method of claim 2,

The method according to claim 1 or 3,

Wherein a connecting portion (260) extending in the longitudinal direction of the heat exchanger (100) is formed at the receiving portion (210) to connect the adjacent condensed water discharge clips (200).

5. The method of claim 4,

A drain hole 261 is formed at the center of the connection part 260 and a groove 262 formed between the drain hole 261 and the protruding support parts 250 at both ends thereof, Wherein the groove (262) is formed to be inclined downward toward the drain hole (261).