KR20180114290A - Cold reserving heat exchanger - Google Patents

Abstract

The present invention relates to a cold reserving heat exchanger. More specifically, the cold reserving heat exchanger stores a cold reserving material in a second row tube among tubes arranged in three rows in a width direction, in which cooling fluids flowing in a first row tube and a third row tube are relatively movable such that cold air of the cooling fluid can be effectively stored while preventing a radical increase of temperature at the inside of a vehicle by emitting the cold air when an engine stops. Therefore, cooling freshness of a user can be improved and energy and time consumed in re-cooling can be minimized.

Description

Cold reserving heat exchanger

[0001] The present invention relates to a cold-storage heat exchanger, and more particularly, to a cold-water heat exchanger in which, among tubes arranged in three rows in the width direction, a cold storage material is stored in a second heat tube, and cooling fluids flowing in the first and third heat tubes The cooling air of the cooling fluid can be effectively stored and the cooling air can be released at the time of engine stop to prevent a sudden temperature rise in the vehicle interior so that the cooling comfort of the user can be enhanced and the energy consumed in re- Cooling heat exchanger.

In recent years, interest in the environment and energy has been increasing worldwide in the automobile industry, and studies for improving fuel efficiency have been made. Research and development for lightening, miniaturization and high performance are continuously carried out in order to satisfy the needs of various consumers.

The hybrid vehicle often employs an idle stop / hitch system that automatically stops the engine at the time of stopping a signal or the like and restarts the engine by operating the transmission again. However, even in the case of the hybrid vehicle, since the cooling apparatus is operated by the engine, when the engine is stopped, the compressor is also stopped, thereby raising the temperature of the evaporator and deteriorating the comfort of the user. Also, since the refrigerant in the evaporator is easily vaporized at room temperature, the refrigerant is vaporized for a short period of time in which the compressor is not operated, and the engine is operated again so that the evaporated refrigerant is compressed and liquefied even if the compressor and the evaporator are operated. Not only a long time is required but also an increase in the total energy requirement.

At this time, since the hybrid vehicle further includes the cooling evaporator, the cooling performance can be improved and the engine restart time can be extended or delayed.

Japanese Unexamined Patent Publication No. 2000-205777 (entitled Cooling Heat Exchanger) has been proposed as a related art, which is shown in Fig.

The refrigerant heat exchanger 90 as shown in Fig. 1 includes a refrigerant passage 91e through which the refrigerant flows and a shrunk chamber 91f or 91f 'in which the refrigerant is stored, , And a passage (94) for fluid to be heat-exchanged with the refrigerant is formed outside the tube (91) of the double pipe structure.

However, since the tube is formed by joining a plurality of plates to each other in the hot-water-circulated heat exchanger as shown in FIG. 1, there is a high occurrence frequency of joining defects and it is difficult to manufacture due to being formed into a double pipe shape. There is a problem that the internal coolant and the coolant are mixed. Further, even if a bonding failure occurs, there is a problem that it is difficult to find the portion.

In order to solve the above-mentioned problem, as shown in Fig. 2, a coaxial heat exchanger having a structure in which two rows of tubes are arranged, refrigerant flows in one row and three rows, and two rows are filled with a shaft coolant.

In the embodiment shown in FIG. 2, the refrigerant heat exchanger needs a structure to move the refrigerant between the first row and the third row. In the embodiment of FIG. 2, the refrigerant flow for allowing the refrigerant to flow between the first row and the third row at one end of the lower tank 12 The passage portion 13 is further provided.

In this case, since the partition wall dividing the fluid between the first, second, and third columns occupies the respective volumes, the size of the evaporator is increased and the length of the refrigerant flow passage portion is increased.

Therefore, it is necessary to develop a coaxial heat exchanger with a more compact structure and minimized volume increase.

Japanese Patent Application Laid-Open No. 2000-205777 (entitled Cooling Heat Exchanger)

SUMMARY OF THE INVENTION The present invention is conceived to solve the problems as described above, and it is an object of the present invention to provide an apparatus and a method for storing a cold storage material in a first row and a third row tube, The cooling fluid is formed so as to be movable with respect to each other, thereby effectively storing cold air of the cooling fluid, releasing cold air when the engine is stopped, preventing rapid temperature rise in the vehicle interior, And to minimize the energy and time consumed by the heat exchanger.

The cold-water heat exchanger according to the embodiment of the present invention is arranged in three rows in the width direction, and a plurality of the cooling fluid is circulated in the first and third tubes 130 and the refrigerant is stored in the second tubes 120 Tubes 100; A first space portion 231 which is fixed at both ends in the longitudinal direction of the tube 100 and is separated into three spaces in the width direction and communicated with the first heat tube 110, And a third space 233 communicating with the third heat tube 130. The header 210 and the tank 220 are connected to each other by an upper header tank 201 and a lower header tank 202; And two header side partition walls 310 (not shown) extending in the direction of the tank 220 to surround the second heat tube 120. The header side partition walls 310 and 310 are provided in the upper header tank 201 and the lower header tank 202, And a tank side partition wall part 320 in which the header side partition wall part 310 is extended at the same point in the same direction and the other end is fixed at one point of the tank 220, ; And an inlet 410 and an outlet 420 formed in the first space 231 or the third space 233 to receive the cooling fluid. And a control unit.

The partition wall 300 is fixed between the second row tube insert hole 212 of the header 210 and the first row tube insert hole 211 and between the third row tube insert hole 213 , Can be located.

The interval between the first to third row tube insertion holes 211, 212, and 213 and the thickness of the header side wall portion 310 may be equal to or greater than the thickness of the cold storage heat exchanger 1 have.

The communication hole 340 may be formed in at least one of the upper header tank 201 and the lower header tank 202.

In addition, the communication holes 340 may be formed at a predetermined distance in the longitudinal direction of the partition 300.

A plurality of header 210 coupling protrusions protruding toward the header 210 may be formed at one end portion of the header side wall portion 310 in the partition wall portion 300 at predetermined intervals in the longitudinal direction .

The upper header tank 201 and the lower header tank 202 may have a first seating groove 210 having an inner side of the header 210 formed in a concave shape so that an end of the header- And a second seating groove 332 in which an inner side surface of the tank 220 is recessed so that an end portion of the tank side wall portion 320 is seated at a predetermined position.

In addition, the partition part 300 may be formed such that the two header side wall parts 310 are bent at the end of the second heat tube 120, and the tank side part wall part 320 is formed at a predetermined inclination And can extend straight toward one point.

In addition, the partition 300 may be formed in a shape in which two of the header-side partition walls 310 are curved in a round shape at an end of the second heat tube 120 to form the tank- Lt; RTI ID = 0.0 > point. ≪ / RTI >

In addition, the partition part 300 is formed such that two of the header-side partitions 310 are bent at the end of the second heat tube 120, and a portion of the tank-side partitions 320 And can extend in the horizontal direction.

The interval between the first to third row tube insertion holes 211, 212 and 213 and the thickness of the header side wall portion 310 may be the same in the cold storage heat exchanger 1.

The refrigerant heat exchanger 1 may further include a baffle 360 for controlling the flow of the refrigerant in the first space 231 and the third space 233.

In addition, in the case of the hot-water storage heat exchanger 1, the tubes 100 arranged in three rows may be extruded at the same time and integrally formed, or the tubes 100 arranged in three rows may be extruded.

The finned heat exchanger 1 may include a pin 500 interposed between the tubes 100 in each row and a pin 500 interposed between the tubes 100 arranged in three rows.

Accordingly, the cold-storage heat exchanger according to the embodiment of the present invention effectively stores the cool air of the coolant by storing the coolant in a tube located in the middle, thereby preventing rapid temperature rise in the vehicle interior by releasing cold air when the engine is stopped, By keeping the air constant, the cooling comfort of the user can be enhanced, and energy and time consumed in re-cooling can be minimized.

The present invention also encompasses a cooling device for cooling a second heat tube, in which the axial coolant is stored in upper and lower header tanks, separating the first and third tubes from the space, The cooling water and the cooling fluid are prevented from being mixed with each other and the area occupied by the cooling water is unnecessarily occupied for space separation, thereby minimizing the width of the entire core of the heat exchanger.

In addition, while the partition wall separates the second row tube space, the flow space of the cooling fluid moving to the first row and the third row tube in the upper and lower header tanks is maximized, thereby minimizing the flow resistance And it is not necessary to provide a separate additional structure for moving the cooling fluid between the first row and the third row tube, thereby reducing the manufacturing cost.

In addition, the present invention has an advantage in that the axial coolant is positioned at the center, thereby improving the quick cooling effect in the initial operation of the air conditioner, and increasing the amount of axial coolant injected as compared with the plate-type cold evaporator.

1 is a cross-sectional view of a conventional double-tube type heat exchanger.
2 is a perspective view showing a conventional three-row heat-shrinkable heat exchanger.
3 and 4 are a partially exploded perspective view and a perspective view of a hot-water storage heat exchanger according to an embodiment of the present invention;
5 and 6 are a perspective view and an exploded perspective view showing the upper header tank side of the coaxial heat exchanger according to the embodiment of the present invention.
FIG. 7 is a front view showing a state in which a partition wall is installed in an upper header tank in a cold-storage heat exchanger according to another embodiment of the present invention; FIG.
FIG. 8 is a front view illustrating a state in which the partition walls are installed according to various embodiments of the present invention. FIG.
9 to 12 are flow charts illustrating the flow of cooling fluid in a superheated heat exchanger according to an embodiment of the present invention.

Hereinafter, a cold-storage heat exchanger according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 and 4, the co-axial heat exchanger 1 according to the embodiment of the present invention mainly includes a tube 100, an upper header tank 201, a lower header tank 202, a partition wall 300, An inlet port 410, and an outlet port 420. As shown in FIG.

First, the tubes 100 are arranged in three rows in the width direction. The cooling fluid is circulated in the first and third tubes 130, and the coolant is stored in the tubes 200.

At this time, the tube 100 is formed so that the three rows of tubes 100 are connected to each other and can be integrally manufactured through an extrusion process. In this case, the tube 100 is simple to manufacture and easy to assemble.

The finned heat exchanger 1 may further include a fin 500 between the tubes 100. The fin 500 interposed between the tubes 100 arranged in three rows is integrally formed, Heat exchange may be performed between the first heat tube 110 and the third heat tube 130 through which the refrigerant flows and the second heat tube 120 through which the refrigerant is stored.

In addition, the tubes 100 may be formed such that the widths of the first heat tube 110, the second heat tube 120, and the third heat tube 130 are equal to each other or the second heat tube 120 is formed to be thinner However, the width or width of the second heat tube 120 may be made thicker so that the axial coolant storage space in the second heat tube 120 may be sufficiently secured, The number of the partition walls formed to improve the pressure resistance may be smaller than that of the first column tube 110 and the third column tube 130.

to the next. The upper header tank 201 and the lower header tank 202 are fixed at both ends in the longitudinal direction of the tube 100 and are separated into three spaces in the width direction to communicate with the first heat tube 110 A second space 232 communicating with the second heat tube 120 and a third space 233 communicating with the third heat tube 130. The first space 231, (210) and the tank (220).

The header 210 and the tank 220 are formed by a pressing process and brazed to each other to form one upper header tank 201 or a lower header tank 202.

The upper header tank 201 and the lower header tank 202 are provided with partition walls 300 for separating the first space portion 231, the second space portion 232 and the third space portion 233 Respectively.

The header partitions 310 may be formed of two header side wall parts 310 and a tank side part wall part 320. The header side part wall part 310 is formed in the header part 210 of the header 210, One end is fixed between the hole 212 and the first row tube insertion hole 211 and between the second row tube insertion hole 212 and the third row tube insertion hole 213, And extend in the direction of the tank 220.

The tank side partition wall portion 320 extends in the same direction when the header side wall portion 310 is located at a certain point and the other end is fixed to any one point of the tank 220.

5 and 6, the partition wall 300 may be formed in the tank side partition wall 320 (320) so that the cooling fluid can move between the first space 231 and the third space 233, And a communication hole 340 in which a predetermined region is formed.

The communication hole 340 is formed at least at one of the upper header tank 201 and the lower header tank 202. The communication hole 340 is located at a position Cooling fluid flow path, and may be formed in various places.

The communication holes 340 shown in FIGS. 5 and 6 are formed by a plurality of spaced apart from each other in the longitudinal direction of the partition wall 300. The flow resistance of the cooling fluid and the pressure resistance of the partition wall 300 are considered A plurality of small communication holes 340 may be formed, or one communication hole may be formed.

In the embodiment shown in FIG. 6, the partition 210 includes a plurality of header protrusions 210 protruding toward the header 210 at one end of the header-side partition wall 310, .

The header 210 coupling protrusion is fixed to the protrusion insertion groove 214 formed on the header 210 so that the partition wall 300 is fixed at a predetermined position of the header 210.

7, the upper header tank 201 and the lower header tank 202 may have an end portion of the header-side partition wall portion 310, for example, A first seating groove 331 in which an inner side surface of the header 210 is recessed so as to be seated at a predetermined position and a second seating groove 331 in which an inner side of the tank 220 is seated in a predetermined position, And a second seating groove 332 having a concave side surface.

The header side wall portion 310 is fixed to two points of the header 210 and the tank side wall portion 320 is fixed to one point of the tank 220 A first seating groove 331 and a second seating groove 332 are formed so that the inner side surface is recessed so that the header side partition wall portion 310 and the tank side wall portion 320 can be seated .

Then, the partition part 300 is brazed together with the header 210 and the tank 220, thereby sealing the joint part.

In another embodiment, when the partition wall 300 is fixed to the header 210 and the tank 220, the first seating groove 331 and the second seating groove 332 or the through-hole insertion groove 214, And may be brazed and then engaged and fixed.

8, the shape of the partition wall part 300 is such that a header side wall part 310 is fixed at two points of the header 210 and a tank side wall part 310 is fixed at one point of the tank 220. [ If the space is separated into the first space portion 231, the second space portion 232, and the third space portion 233 while the partition wall portion 320 is fixed, various changes can be made.

First, as shown in FIG. 8 (a), the partition part 300 is formed such that two header side partition walls 310 are bent at the end of the second heat tube 120, And may extend straight toward a point where the side wall portion 320 is formed.

8 (b), the partition wall portion 300 is formed such that the two header side wall portions 310 are curved in a round shape at the end portion of the second heat tube 120, And may extend straight toward one point where the tank side partition 320 is formed.

8 (c), the partition wall portion 300 is formed such that two header-side partition wall portions 310 are bent at the end portion of the second heat tube 120, And may extend in a horizontal direction toward a certain point where the side wall part 320 is formed.

At this time, since the interval between the first to third row tube insertion holes 213 and the thickness of the header side wall portion 310 are formed to be equal, the core-width can be minimized have.

The condensed-water heat exchanger 1 may be formed with an inlet 410 and a discharge outlet 420 formed in the first space 231 or the third space 233 to receive the cooling fluid. .

At this time, an inlet pipe 440 and an outlet pipe 450 may be connected to the inlet 410 and the outlet 420 through a manifold 430.

The axial heat exchanger 1 further includes a baffle 360 for controlling the flow of the cooling fluid to the first space 231 and the third space 233, .

Figs. 9 to 12 show a heat exchanger 1 having various flow paths for the cooling fluid, with different positions of the communication hole 340 and the baffle 360. As shown in Fig.

Hereinafter, referring to Fig. 9, the flow of cooling fluid in the two-pass heat exchanger 1 will be described.

9, the inlet port 410 and the outlet port 420 are formed in the upper header tank 201 and the communication hole 340 is formed in the lower header tank 202, Can be formed in one place.

The cooling fluid flows through the inlet 410 formed in the first space portion 231 of the upper header tank 201 and is moved downward along the first column tube 110, Passes through the communication hole (340) formed on the partition part (300) of the first chamber (202), and flows into the third space part (233).

The cooling fluid then passes through the third space portion 233 of the lower header tank 202 and is moved upward again along the third row tube 130, And is discharged along the discharge port 420 formed in the third space portion 233 of the upper header tank 201. [

Next, referring to Fig. 10, the flow of the cooling fluid in the four-pass heat exchanger 1 will be described.

10 is characterized in that the inlet 410 and the outlet 420 are formed in the upper header tank 201 and the communication hole 340 is formed in the lower header tank 202 And a baffle 360 is provided in the first space portion 231 and the third space portion 233 of the upper header tank 201, respectively.

First, the cooling fluid flows through the inlet 410 formed in the first space portion 231 of the upper header tank 201, and the introduced cooling fluid flows downward and upward along the first column tube 110 And reaches the upper header tank 201 and then flows into the third space portion 233 through the communication hole 340 formed on the partition wall portion 300 of the upper header tank 201.

The cooling fluid is then moved downward along the third row tube 130 connected to the third spatial section 233 of the upper header tank 201 and then the third space section 233 of the lower header tank 202 233 and flows upward along the third row tube 130 to finally reach the upper header tank 201 and then flows into the third space portion 233 of the upper header tank 201 (Not shown).

Next, referring to Fig. 11, the flow of cooling fluid in the six-pass heat exchanger 1 will be described.

11, the inlet port 410 and the outlet port 420 are formed in the upper header tank 201 and the communication hole 340 is formed in the lower header tank 202, And baffles 360 are provided in the first and second spaces 231 and 233 of the upper and lower header tanks 201 and 202, respectively.

First, the cooling fluid flows through an inlet 410 formed in the first space portion 231 of the upper header tank 201. The introduced cooling fluid flows downward, upward, and downward along the first column tube 110 Flows through the communication hole 340 formed on the partition wall portion 300 of the lower header tank 202 and flows into the third space portion 233 .

The cooling fluid is then moved upward along the third row tube 130 connected to the third spatial portion 233 of the lower header tank 202 and is then discharged to the third space portion of the upper header tank 201 233 of the upper header tank 201 and flows along the third column tube 130 in the order of the lower side and the upper side to finally reach the upper header tank 201, And is discharged along the discharge port 420 formed in the space portion 233.

Lastly, FIG. 12 shows a cold-water heat exchanger 1 having 8-pass cooling fluid flow, which is similar to that of FIG. 11 except that there are two more passes flowing from the lower side to the upper side and from the upper side to the lower side One baffle 360 is further provided in the first space portion 231 and the third space portion 233 of the upper header tank 201, respectively.

Accordingly, the present invention encompasses the second heat tube 120 in which the axial coolant is stored in the upper and lower header tanks 202, separates the first and third tubes 110 and 130 from the space, The partition wall portion 300 in which the communication holes 340 are formed to circulate the cooling fluid of the first and third columns 110 and 130 is provided so that the axial coolant and the cooling fluid are not mixed with each other, The width of the entire core of the heat exchanger can be minimized by eliminating the area unnecessarily occupied by the heat exchanger.

In addition, while the partition wall 300 separates the space of the second heat tube 120, the present invention is also applicable to the first and third heat tubes 110 and 130 in the upper and lower header tanks 202 Since the flow space of the cooling fluid is maximized, the flow resistance can be minimized and no separate additional structure is required for the movement of the first and third heat tubes 110 and 130 between the cooling fluids. The cost can be reduced.

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. It goes without saying that various modifications can be made.

1: Cooling heat exchanger
100: tube
110, 120, 130: first to third tubes
201, 202: upper header tank, lower header tank
210: Header
211, 212, 213: first to third row tube insertion holes
214: projection insertion groove
220: tank
231, 232, and 233: a first space portion, a second space portion,
300:
310: header side partition wall portion 320: tank side partition wall portion
331: first seating groove 332: second seating groove
340: communication hole
360: Baffle
410, 420: inlet, outlet
430: manifold
440, 450: inlet pipe, outlet pipe
500: pin

Claims (17)

A plurality of tubes (100) arranged in three rows in the width direction, wherein the cooling fluid is circulated in the first and third tubes (130) and the coolant is stored in the second tubes (120);
A first space portion 231 which is fixed at both ends in the longitudinal direction of the tube 100 and is separated into three spaces in the width direction and communicated with the first heat tube 110, And a third space 233 communicating with the third heat tube 130. The header 210 and the tank 220 are connected to each other by an upper header tank 201 and a lower header tank 202;
And two header side partition walls 310 (not shown) extending in the direction of the tank 220 to surround the second heat tube 120. The header side partition walls 310 and 310 are provided in the upper header tank 201 and the lower header tank 202, And a tank side partition wall part 320 in which the header side partition wall part 310 is extended at the same point in the same direction and the other end is fixed at one point of the tank 220, ; And an inlet 410 and an outlet 420 formed in the first space 231 or the third space 233 to receive the cooling fluid. And a heat exchanger for cooling the heat exchanger.
The method according to claim 1,
The partition wall portion 300
Is located between the second row tube insert hole (212) of the header (210), the first row tube insert hole (211), and the third row tube insert hole (213).
The method according to claim 1,
The partition wall portion 300
Is fixed between the second row tube insert hole (212) of the header (210), the first row tube insert hole (211) and the third row tube insert hole (213).
3. The method according to claim 2 or 3,
The hot-water storage heat exchanger (1)
Wherein an interval between the first to third row tube insertion holes (211, 212, 213) and a thickness of the header side wall portion (310) are equal to or larger than each other.
The method according to claim 1,
The partition wall portion 300
And a communication hole 340 in which a predetermined region is hollowed on the tank side wall portion 320 so that a cooling fluid can move between the first space portion 231 and the third space portion 233. Cooling heat exchanger.
6. The method of claim 5,
The communication holes 340
Is formed at least at one of the upper header tank (201) or the partition wall portion (300) provided in the lower header tank (202).
6. The method of claim 5,
The communication holes 340
Wherein the plurality of partition wall portions (300) are spaced apart from each other by a predetermined distance in the longitudinal direction of the partition wall portion (300).
The method according to claim 1,
The partition wall portion 300
Wherein the plurality of header protrusions (210) projecting toward the header (210) are formed at one end of the header-side partition wall portion (310) at a predetermined interval in the longitudinal direction.
The method according to claim 1,
The upper header tank 201 and the lower header tank 202
And a first seating groove (331) in which an inner side surface of the header (210) is concave so that an end of the header side wall portion (310) is seated at a predetermined position.
The method according to claim 1,
The upper header tank 201 and the lower header tank 202
And a second seating groove (332) in which an inner side surface of the tank (220) is recessed so that an end of the tank side wall portion (320) is seated at a predetermined position.
The method according to claim 1,
The partition wall portion 300
The two header-side partition walls 310 are bent at the ends of the second heat tube 120,
And extends in a straight line toward a certain point at which the tank side partition wall portion (320) is formed with a predetermined inclination.
The method according to claim 1,
The partition wall portion 300
The two header-side partition walls 310 are curved in a round shape at the end of the second heat tube 120 and extend straight toward a point where the tank-side partition wall 320 is formed The cooling water heat exchanger.
The method according to claim 1,
The partition wall portion 300
The two header-side partition walls 310 are bent at the ends of the second heat tube 120,
And extends in a horizontal direction toward a certain point where the tank side partition wall portion (320) is formed.
The method according to claim 1,
The hot-water storage heat exchanger (1)
And a baffle (360) for controlling the flow of the refrigerant in the first space (231) and the third space (233).
The method according to claim 1,
The hot-water storage heat exchanger (1)
Wherein the tubes (100) arranged in three rows are simultaneously extruded to be integrally formed.
The method according to claim 1,
The hot-water storage heat exchanger (1)
Wherein the tubes (100) arranged in three rows are respectively formed by extrusion.
16. A method according to any one of claims 15 and 16,
The hot-water storage heat exchanger (1)
Characterized in that the fin (500) interposed between the tubes (100) of the respective rows is formed integrally with the tubes (500) interposed between the tubes (100) arranged in three rows.

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