JPH0626780A - Heat exchanger - Google Patents

Abstract

PURPOSE:To make it possible to change freely a flow pattern of refrigerant in a refrigerant condenser and to mount easily the refrigerant condenser at any place even where there is a restriction imposed on an installation space. CONSTITUTION:A first partitioning plate 14 is installed between a top header 9 and a plate header 11. There are segmented a first row of cores 2 and a second row of cores 3 where five second partitioning plates 15 to 17 are installed so as to intersect the first partitioning plate 14 and divide per tubes and 5 and 6. First holes 14a and 14b are formed on the first partitioning plate 14, thereby communicating the two tubes 2 on the left side of the first row of the cores 2 with the two tubes on the left side of the second row of the cores 3. In addition, second holes 15a, 15b, 16a and 17b are formed on the second partitioning plates 15 to 17, thereby partially communicating the adjacent tubes 5 and 6 in the top header 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger such as a refrigerant condenser or a refrigerant evaporator of a vehicle air conditioner.

[0002]

2. Description of the Related Art Conventionally, a core portion provided with a plurality of tubes in the width direction, a pair of round headers into which end portions of the plurality of tubes are respectively inserted, and a plurality of insides of these round headers are provided. A heat exchanger (Japanese Utility Model Laid-Open No. 3-14578, etc.) provided with a plurality of partition plates that are partitioned into the flow path chambers has been proposed. In addition, in the related art, for the purpose of improving heat exchange performance, a heat exchanger in which two or more rows of core portions are provided in the row direction and a round header is connected to the end portion of each core portion is conceivable.

[0003]

However, since the heat exchanger provided with the cores in two or more rows has the round headers connected to the ends of the cores in two or more rows, respectively, two or more cores are connected. Even if a plurality of partition plates are provided in the round header, the flow pattern of the fluid flowing in the heat exchanger is limited, so the flow pattern of the fluid in the heat exchanger cannot be freely changed. There was a problem.

Further, in order to connect the core parts adjacent to each other in the column direction to each other, it is necessary to provide a connecting pipe for connecting the adjacent round headers, which is unnecessary around the round headers. I can make a protrusion. In addition, since the headers are connected to the end portions of the cores in two or more rows for each core, the dead space between the adjacent round headers becomes large, so that the size of the heat exchanger becomes very large. It becomes big. For these reasons, there is a problem that it is difficult to attach such a heat exchanger to an installation place where the installation space of the heat exchanger is very limited, such as a vehicle.

It is an object of the present invention to provide a heat exchanger that can freely change the flow pattern of a fluid and can be easily installed in an installation place where the installation space is limited.

[0006]

According to the present invention, a plurality of rows of core portions in which a plurality of flow passages through which a fluid flows are provided in the width direction, and one end portion of the plurality of rows of core portions are connected, One header, the interior of which communicates with the plurality of flow path pipes, is arranged along the width direction of the plurality of rows of core portions within the one header, and the plurality of rows of core portions are arranged within the one header. One or more first partition plates, each of which has a first hole portion for partitioning the flow path pipes adjacent to each other in the row direction of the plurality of rows of core portions, and the one header Is disposed so as to be substantially orthogonal to the first partition plate in
The inside of one header is divided for each of the plurality of flow path pipes, and a plurality of second hole portions that partially connect the flow path pipes adjacent to each other in the width direction of the plurality of rows of core portions are formed. A technical means with a second partition was adopted.

[0007]

According to the present invention, one or more first partition plates and a plurality of second partition plates are arranged in a direction substantially orthogonal to each other in one header connected to one end of a plurality of rows of core portions. Therefore, the headers connected to one ends of the plurality of rows of core parts are integrated. This eliminates the need for providing a connecting pipe for connecting the headers to each other as in the conventional structure, so that unnecessary protrusion does not occur in the periphery of one header and the dead portion around one end of the cores in multiple rows is eliminated. Space can be reduced. For this reason, it is possible to reduce the size of the heat exchanger. Therefore, even in an installation place where the installation space of the heat exchanger is limited, such as in a vehicle, a plurality of rows can be used to improve the heat exchange performance. It becomes possible to easily attach the heat exchanger provided with the core part.

The fluid flowing from one end of one of the plurality of flow pipes to a portion surrounded by the first partition plate and the second partition plate in one header is, for example, When the inside of one header is divided into a plurality of flow path pipes by the second partition plate, the flow of the plurality of rows of core portions in the width direction is blocked. Then, if the first hole is formed in the first partition plate where the fluid has flowed in,
Flowing in the row direction of the plurality of rows of core portions through the first hole portion, for example, flows into the flow passage pipes adjacent to each other in the row direction of the plurality of rows of core portions. In addition, the fluid that has flowed into one portion of one header surrounded by the first partition plate and the second partition plate from one end of one of the plurality of flow channel tubes is, for example, the first partition. When one header is divided into a plurality of rows of core portions by the plate, the flow of the plurality of rows of core portions in the row direction is blocked. Then, if the second hole is formed in the second partition plate at the location where the fluid flows in,
It flows in the width direction of the core portions in a plurality of rows through the second hole portion, and flows into, for example, a flow path pipe adjacent to the core portions in a plurality of rows in the width direction. As described above, the flow pattern of the fluid in the heat exchanger can be freely set depending on whether the first hole is formed in the first partition plate and whether the second hole is formed in the second partition plate. It becomes possible to decide.

[0009]

EXAMPLES Next, the heat exchanger of the present invention will be explained based on the examples shown in the drawings. [First Embodiment] FIGS. 1 to 9 show a first embodiment of the present invention. FIG. 1 is a view showing a refrigerant condenser of an air conditioner for a vehicle, and FIG. 2 is a refrigerant condenser thereof. It is a figure showing the flow of the refrigerant inside. In the refrigerant condenser 1, the first row core portion 2 and the second row core portion 3 are arranged in the air flow direction (row direction). In the core portion 2 in the first row and the core portion 3 in the second row, six tubes 5 and 6 extending from the upper end portion toward the lower end portion are arranged in parallel in the width direction.

The tubes 5 and 6 are the flow passage tubes of the present invention and are formed in a flat shape, and heat-exchange the refrigerant flowing inside and the air passing outside to condense the refrigerant. Corrugated corrugated fins 7 are joined by brazing or the like between the tubes 5 adjacent to each other in the width direction of the core portions 2 in the first row. Corrugated corrugated fins 8 are similarly joined by brazing or the like between the tubes 6 adjacent to each other in the width direction of the core portions 3 in the second row. Further, the core parts 2 and 2 in the first row
The upper header 9 is joined to the upper end of the core portion 3 of the row by means such as brazing, and the lower header 10 is attached to the lower end of the core portion 2 of the first row and the core portion 3 of the second row. Are joined by means such as brazing.

A plate header 11 is joined to the upper header 9 by means such as brazing. An inlet hole 9a and an outlet hole 9b are formed at the right end of the upper header 9. These inlet holes 9a and outlet holes 9b are
The inlet pipe 12 and the outlet pipe 13 are joined by brazing. The inlet pipe 12 is a pipe through which a high-temperature and high-pressure refrigerant gas discharged from a refrigerant compressor (not shown) flows into the upper header 9 through the inlet hole 9a.
Further, the outlet pipe 13 decompresses the liquid refrigerant condensed and liquefied in the refrigerant condenser 1 via the outlet hole 9b (not shown).
It is a pipe to send to. In the plate header 11, the through holes 11a in the first row and the second row in which the upper ends of the tubes 5 in the core section 2 in the first row and the upper ends of the tubes 6 in the core section 3 in the second row are inserted. 6 through holes 11a and 11b are formed.

Between the upper header 9 and the plate header 11, there is one first partition arranged along the width direction of the core portion 2 in the first row and the width direction of the core portion 3 in the second row. Board 14,
Also, five second partition plates 15 to 17 are provided so as to be orthogonal to the first partition plate 14 and arranged along the row direction of the core portions 2 in the first row and the core portions 3 in the second row. ing.
As shown in FIG. 3, the first partition plate 14 partitions the inside of the upper header 9 into the first row core portion 2 side and the second row core portion 3 side. The left and right ends of the first partition plate 14 are respectively joined to the left and right side walls of the plate header 11 by brazing, and the upper and lower ends of the first partition plate 14 are the upper header 9,
The plate headers 11 are joined to each other by brazing. The first hole 14 is provided on the left side of the first partition plate 14.
A and 14b are formed in a rectangular shape. First hole 14
a and 14b are the first and the second from the left side of the core portion 2 in the first row.
The second tube 5 and the first and second tubes 6 from the left side of the core portion 3 in the second row are communicated with each other. Further, five cutouts 14c are formed at equal intervals on the lower end of the first partition plate 14.

The second partition plates 15 to 17 are of three types from A type to C type, and as shown in FIGS. 4 to 6, inside the upper header 9 in the width direction of the core portion 2 of the first row. Each tube 5 and each tube 6 in the width direction of the core portion 3 in the second row are partitioned. Second partition plate 15 to 17
The front and rear ends of are joined to the front and rear walls of the plate header 11 by brazing, and the upper and lower ends are joined to the upper header 9 and the plate header 11 by brazing. In this example, three A-type second partition plates 15 are used, and the three second partition plates 15 are formed in the same shape. In the second partition plate 15, as shown in FIG.
The second holes 15a and 15b are formed in a rectangular shape. The second hole portion 15a connects the tubes 5 adjacent to each other in the width direction of the core portion 2 in the first row. The second hole portion 15b connects the tubes 6 adjacent to each other in the width direction of the core portions 3 in the second row. Further, the upper end portion of the second partition plate 15 is formed with cutout portions 15c which are respectively fitted into the first, third, and fifth cutout portions 14c from the right side of the first partition plate 14.

Only one B-type second partition plate 16 is used in this example. As shown in FIG.
As shown in, the second hole portion 16a for communicating the tubes 5 adjacent to each other in the width direction of the core portion 2 of the first row is formed in a square shape. In addition, at the upper end of the second partition plate 16, the second cutout portion 1 from the right side of the first partition plate 14 is provided.
A cutout portion 16c is formed to be fitted into 4c. C
Only one type of second partition plate 17 is used in this example. As shown in FIG. 6, in the second partition plate 17, a second hole portion 17b for communicating the tubes 6 adjacent to each other in the width direction of the core portion 3 in the second row is formed in a square shape. ing. In addition, the first partition is attached to the upper end of the second partition plate 17.
A notch 17c is formed to be fitted into the fourth notch 14c from the right side of the partition plate 14. The first partition plate 14 and the second partition plates 15 to 17 allow the inside of the upper header 9 to include the six tank chambers 18a to 18f on the side of the core portion 2 in the first row and the core portion 3 in the second row. It is partitioned into six tank chambers 19a to 19f on the side. Tank chamber 18a-
18 f communicates with the first to sixth tubes 5 from the right side of the core portion 2, respectively. Furthermore, the tank chambers 19a-1
9 f communicates with the first to sixth tubes 5 from the right side of the core portion 2, respectively.

A plate header 20 is joined to the lower header 10 by means such as brazing in the same manner as the upper header 9. The plate header 20 includes a lower end portion of each tube 5 in the core portion 2 in the first row and a core portion 3 in the second row.
Six through holes 20a in the first row and six through holes 20b in the second row for inserting the lower ends of the respective tubes 6 are formed. Further, between the lower header 10 and the plate header 20, one first partition plate 21 arranged along the width direction of the core portion 2 in the first row and the core portion 3 in the second row, And 5 arranged so as to be orthogonal to the first partition plate 21 along the row direction of the core portions 2 in the first row and the core portions 3 in the second row.
Two second partition plates 22 and 23 are provided.

As shown in FIG. 7, the first partition plate 21 partitions the inside of the lower header 10 into the core portion 2 side in the first row and the core portion 3 side in the second row. First partition plate 21
The left and right ends of the first partition plate 21 are joined to the left and right side walls of the plate header 20 by brazing, and the upper and lower ends of the first partition plate 21 are joined to the lower header 10 and the plate header 20 by brazing. On the left side of the first partition plate 21, first holes 21a and 21b are formed in a rectangular shape. The first hole portions 21a and 21b are the first and second tubes 5 and the second row core portion 3 from the left side of the first row core portion 2, respectively.
The first and second tubes 6 are connected from the left side of the.
Further, on the upper end portion of the first partition plate 21, five notch portions 21c into which the five second partition plates 22 and 23 are fitted are formed at equal intervals.

The second partition plates 22 and 23 are of A type and C type.
As shown in FIGS. 8 and 9, in the upper header 9, each tube 5 is arranged in the width direction of the core portion 2 in the first row and the tubes are arranged in the width direction of the core portion 3 in the second row. It is divided into every six. The front and rear ends of the second partition plates 22 and 23 are joined to the front and rear walls of the plate header 20 by brazing, and the upper and lower ends thereof are joined to the lower header 10 and the plate header 20, respectively. Four A-type second partition plates 22 are used in this example, and the four second partition plates 22 are formed in the same shape. On the second partition plate 22, as shown in FIG.
The first holes 22a and 22b are formed in a rectangular shape. The second hole portion 22a connects the tubes 5 adjacent to each other in the width direction of the core portion 2 in the first row. The second hole portion 22b connects the tubes 6 adjacent to each other in the width direction of the core portions 3 in the second row. Further, the lower end portion of the second partition plate 22 is formed with cutout portions 22c which are respectively fitted into the first to third and fifth cutout portions 21c from the right side of the first partition plate 21.

Only one C-type second partition plate 23 is used in this example. As shown in FIG.
As shown in, the second hole 23a for communicating the tubes 5 adjacent to each other in the width direction of the core 2 is formed in a square shape. In addition, at the lower end of the second partition plate 23,
A cutout portion 23c that fits into the cutout portion 21c of the first partition plate 21 is formed. Due to the first partition plate 21 and the second partition plates 22 and 23, the inside of the lower header 10 is
As shown in FIG. 2, it is partitioned into six tank chambers 25a to 25f on the core portion 2 side in the first row and six tank chambers 26a to 26f on the core portion 3 side in the second row. Tank chamber 25a
.About.25f communicate with the first to sixth tubes 6 from the right side of the core portion 3, respectively. Furthermore, the tank chamber 26a-
26f communicates with the first to sixth tubes 6 from the right side of the core portion 3, respectively. In addition, these refrigerant condensers 1
For the parts constituting the above, a metal plate such as aluminum in which a brazing material is clad is used, and after these parts are assembled, they are integrally brazed in a furnace.

Next, the flow of the refrigerant in the refrigerant condenser 1 of this embodiment will be briefly described with reference to FIGS. 1 and 2. The high-temperature and high-pressure refrigerant gas discharged from the refrigerant compressor passes through the inlet pipe 12 and is located at the right end of the upper header 9 through the inlet hole 9a formed at the core 2 side of the first row at the right end of the upper header 9. Flows into the tank chamber 18a. Tank chamber 18a
The refrigerant gas flowing into the inside is separated by the first partition plate 14 into 2
Flow to the core part 3 side of the row is blocked, but from the right side 1
The second hole portion 15 formed in the first row core portion 2 side of the second and third partition plates 15 and 16 of the second second partition plate 16.
It also flows into the tank chambers 18b to 18d through a and 16a. The refrigerant gas flowing into each of the tank chambers 18a to 18d is blocked from flowing toward the tank chamber 18e by the second partition plate 17 which is the fourth partition plate from the right side. From the right side through the first to fourth tubes 5 toward the lower header 10.

The refrigerant that has flowed into the tank chambers 25a to 25d of the lower header 10 from the lower ends of the first to fourth tubes 5 from the right side of the core section 2 in the first row is the first partition plate 2
Although the flow toward the core portion 3 side of the second row is blocked by 1, the core portion 2 of the first row of all the second partition plates 22 and 23 is blocked.
It also flows into the tank chambers 25e, 25f through the second holes 22a, 23a formed on the side. Tank chamber 25e, 2
The refrigerant that has flowed into 5f also flows into the tank chambers 26e and 26f on the second row core portion 3 side through the first holes 21a and 21b formed in the left side portion of the first partition plate 21. The refrigerant flowing into the tank chambers 26e and 26f is prevented from flowing toward the tank chamber 26d by the second partition plate 23 which is the second partition plate from the left side. The first and second tubes 5 from the left side of the core part 3,
Heading toward the upper header 9 through 6.

The tank chamber 1 of the header 9 above the upper ends of the first and second tubes 5 from the left side of the core portion 3 in the second row
The refrigerant flowing into 8e and 18f flows into the tank chambers 19e and 19f through the first holes 14a and 14b formed on the left side of the first partition plate 14. Moreover, the refrigerant that has flowed into the tank chambers 19e, 19f of the upper header 9 from the upper ends of the first and second tubes 6 from the left side of the core section 3 in the second row is the first and the third from the left side. 2 partition boards 1
5 and the second partition plate 17 from the left side also flow into the tank chambers 19c and 19d through the second holes 15b and 17b formed on the core portion 3 side of the second row. Tank room 19
The refrigerant flowing into c and 19d is the second second from the left side.
Since the partition plate 16 blocks the flow of the refrigerant toward the tank chamber 19b side, it is possible to remove the refrigerant from the left side of the core portion 3 in the second row by 3
Go through lower and fourth tubes 6 to lower header 10.

The refrigerant flowing into the tank chambers 26c, 26d of the lower header 10 from the lower ends of the third and fourth tubes 6 from the left side of the core section 3 in the second row is third to fifth from the left side. Through the second hole 22b formed in the second row of the second partition plate 22 on the core portion 3 side, the tank chambers 26a, 2
It also flows into 6b. The refrigerant flowing into the tank chambers 26a and 26b goes to the upper header 9 through the fifth and sixth tubes 6 from the left side of the core portion 3 in the second row. The liquid refrigerant that has flowed into the tank chambers 19a, 25b of the upper header 9 from the upper ends of the fifth and sixth tubes 6 from the left side of the core section 3 in the second row is stored in the first partition plate 15 from the right side. An outlet hole formed in the tank chamber 25a through the second hole portion 15b formed in the second row core portion 3 side and formed in the second row core portion 3 side at the right end of the upper header 9. It flows out to the outlet pipe 13 from 9b.

In the refrigerant condenser 1, the refrigerant, which initially contained a large amount of gas component due to the liquefaction and condensation of the refrigerant, becomes only the liquid refrigerant near the outlet hole 9b, and the volume of the refrigerant increases from the inlet hole 9a to the outlet hole 9b. Becomes smaller gradually. Even in such a case, the number of tubes 5 and 6 should be 4 → 4 → 2
Since the number of books → two can optimize the flow rate of the refrigerant, the heat exchange performance of the refrigerant condenser 1 can be improved. Further, by providing only the integrated upper header 9 on the upper ends of the tubes 5 and 6, and further providing the integrated lower header 10 on the lower ends of the tubes 5 and 6, the upper header 9 and the lower header 10 are provided. Since the dead space around the refrigerant can be reduced, the refrigerant condenser 1
The physique can be reduced.

Here, the upper header 9 of the refrigerant condenser 1
Since a high pressure is applied to the upper header 9, even if the upper header 9 is simply integrated, the pressure resistance of the upper header 9 is small and cannot be applied. However, as shown in FIG. 1, the first partition plate 14, the second partition plate 15- The partition plates functioning as reinforcing members by inserting a large number of 17 can prevent defects such as deformation and rupture of the upper header 9 even when high pressure is applied to the upper header 9. Also, the lower header 10
Also, similarly to the upper header 9, it is possible to prevent defects such as deformation and rupture even if high pressure is applied.

[Second Embodiment] FIGS. 10 and 11 show a second embodiment of the present invention. FIG. 10 shows a refrigerant condenser of an air conditioner for a vehicle, and FIG. It is a figure showing the flow of the refrigerant in a refrigerant condenser. In this embodiment, the inlet hole 9a and the outlet hole 9b of the upper header 9 are formed near the center in the width direction of the core portion 2 in the first row to change the flow pattern of the refrigerant from that of the first embodiment. Between the upper header 9 and the plate header 11 of this embodiment, a first partition plate 31 having a shape different from that of the first embodiment and five second partition plates 1 are provided.
5 to 17 are arranged so as to intersect with each other. The first partition plate 31 includes the core portions 2 and 2 in the first row at left and right end portions, respectively.
The 1st and 5th from the right side adjacent to each other in the column direction of the core portion 3 of the column
First hole portions 31a and 31b for connecting the second tubes 5 and 6 to each other are formed. Further, at the lower end portion of the first partition plate 31, five cutout portions 31c for inserting the five second partition plates 15 to 17 are formed at equal intervals.

In this embodiment, two second partition plates 15 are used in this embodiment, and they are fitted into the second and fourth cutouts 31c from the right side of the first partition plate 31, respectively.
Further, only one second partition plate 16 is used in this example, and the second partition plate 16 is fitted into the fifth cutout portion 31c from the right side of the first partition plate 31. Two second partition plates 17 are used in this example, and are respectively fitted into the first and third cutout portions 31c from the right side of the first partition plate 31.

Further, the lower header 10 and the plate header 2
Between 0 and 1, the first partition plate 2 having the same shape as that of the first embodiment.
1 and five second partition plates 22 to 24 having a shape different from that of the first embodiment are arranged so as to intersect with each other. In this embodiment, three second partition plates 22 are used in this example, and the second partition plate 22 is the second partition plate from the right side of the first partition plate 21 and the fourth partition plate is the fifth partition plate.
It is fitted in the second cutout 21c. Further, only one second partition plate 23 is used in this example, and the second partition plate 23 is fitted into the first cutout portion 21c from the right side of the first partition plate 21. Then, the second partition plate 24 is formed with a second hole portion 24b for communicating the tubes 6 adjacent to each other in the width direction of the core portion 3 of the second row. In addition, a cutout portion 24c that is fitted into the third cutout portion 21c from the right side of the first partition plate 21 is formed at the lower end portion of the second partition plate 24.

As shown in FIGS. 10 and 11, the flow of the refrigerant in the refrigerant condenser 1 of this embodiment is as follows.
2 → Tank chambers 18d to 18f of the upper header 9, tank chambers 19f → the first to third tubes 5 from the left side of the core portion 2 in the first row, and the first tube 6 from the left side of the core portion 3 in the second row → Tank chambers 25d to 25f and tank chamber 26f of the lower header 10 → Tank chambers 26b to 26 of the lower header 10
e → The second to fifth tubes 6 from the left side of the core portion 3 in the second row → the tank chambers 19b to 19e of the upper header 9 flow. Further, the tank chamber 18a and the tank chamber 19a of the upper header 9 → the fifth tube 5 from the left side of the core section 2 in the first row 5th tube 6 from the left side of the core section 3 in the second row → the lower header 10 Tank chambers 25a to 25c → the fourth and fifth tubes 5 from the left side of the core portion 2 in the first row →
Tank chambers 18b, 18c of the upper header 9 → outlet pipe 1
It flows like 3.

As described above, when the position of the upper header 9 to which the inlet / outlet pipes 12 and 13 are attached is difficult to dispose with the arrangement of the refrigerant condenser 1 of the first embodiment as shown in FIGS. 10 and 11. As described above, by changing the flow pattern of the refrigerant in the refrigerant condenser 1 from the first embodiment,
The attachment positions of the inlet and outlet pipes 12 and 13 can be changed. As described in the first and second embodiments above, the first
Refrigerant condensation depends on whether or not the first holes are formed in part of the partition plates 14 and 21, and whether or not the second holes are formed in part of the second partition plates 15 to 17, 22, and 23. The flow pattern of the refrigerant in the vessel 1 can be freely determined.

[Modification] Although the present invention is used in the refrigerant condenser in this embodiment, the present invention may be used in other heat exchangers such as a refrigerant evaporator, a radiator, a heater core, and an oil cooler. Although only two examples of the flow patterns of the refrigerant have been described in the present embodiment, it is possible to change the flow patterns of various kinds of fluids limited to these. In addition, as shown in FIG. 12, the second partition plate 32 having no second hole may be used for some of the plurality of second partition plates. A notch 32c for fitting into the first partition plate is formed at the upper end of the second partition plate 32.

In this embodiment, the inlet hole 9a is changed to the outlet hole 9b.
The number of tubes 5 and 6 toward 4 → 4 → 2 →
The number was reduced to 2 but, for example, 5 → 4 → 3
It may be reduced by another pattern so that it becomes a book or the like. In addition, when used in a refrigerant evaporator, it is advisable to gradually increase the number of tubes from the inlet to the outlet. In the present embodiment, the core portions 2 in the first row and the core portions 3 in the second row are provided in the row direction, but the core portions in three or more rows may be provided. Also,
The number of tubes may be freely changed in one row of core portions.

[0032]

EFFECTS OF THE INVENTION According to the present invention, the fluid in the heat exchanger can be separated depending on whether or not the first hole is formed in the first partition plate and whether or not the second hole is formed in the second partition plate. The flow pattern can be changed freely. Further, the present invention does not have unnecessary protrusions around the header and can reduce the size of the heat exchanger. Therefore, the present invention can be easily applied to an installation place where the installation space of the heat exchanger is limited, such as a vehicle. Can be attached to.

[Brief description of drawings]

FIG. 1 is an exploded view showing a refrigerant condenser of a vehicle air conditioner applied to a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing the flow of refrigerant in the refrigerant condenser of FIG.

FIG. 3 is a front view showing a first partition plate in the upper header.

FIG. 4 is a front view showing a second partition plate in the upper header.

FIG. 5 is a front view showing a second partition plate in the upper header.

FIG. 6 is a front view showing a second partition plate in the upper header.

FIG. 7 is a front view showing a first partition plate in the lower header.

FIG. 8 is a front view showing a second partition plate in the lower header.

FIG. 9 is a front view showing a second partition plate in the lower header.

FIG. 10 is an exploded view showing a refrigerant condenser of a vehicle air conditioner applied to a second embodiment of the present invention.

11 is a schematic diagram showing the flow of the refrigerant in the refrigerant condenser of FIG.

FIG. 12 is a front view showing a modified example of the second partition plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerant condenser (heat exchanger) 2 Core part of 1st row 3 Core part of 2nd row 5 Tube 6 Tube 9 Upper header 10 Lower header 14 1st partition plate 14a 1st hole 14b 1st hole 15 2nd partition plate 15a 2nd hole part 15b 2nd hole part 16 2nd partition plate 16a 2nd hole part 17 2nd partition plate 17b 2nd hole part 21 1st partition plate 21a 1st hole part 21b 1st hole part 22 2nd partition plate 22a 2nd hole part 22b 2nd hole part 23 2nd partition plate 23a 2nd hole part

Claims (1)

[Claims] 1. (a) a plurality of rows of core portions in which a plurality of flow pipes in which a fluid flows inside are provided in the width direction; and (b) one end of each of the plurality of rows of core portions, One header communicating with the plurality of flow passage tubes; and (c) a plurality of cores arranged in the one header along the width direction of the plurality of rows of core parts. (D) one or more first partition plates that are divided into parts and that partly have first hole parts that connect the flow path pipes that are adjacent to each other in the row direction of the plurality of rows of core parts; It is arranged so as to be substantially orthogonal to the first partition plate in the one header, partitions the inside of the one header for each of the plurality of flow path pipes, and partly has a width of the core portions of the plurality of rows. A plurality of second partition plates each having a second hole for communicating the flow path pipes adjacent to each other in the direction Exchanger.