JP3183613B2 - Tank for integrated heat exchanger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrated heat exchanger tank comprising two tanks connected to each other.

[0002]

2. Description of the Related Art In recent years, a so-called integrated heat exchanger in which a cooling condenser is connected to a front surface of a radiator has been frequently used. An integrated heat exchanger tank as disclosed in JP-A-2-62267 is used.

FIG. 10 shows an integrated heat exchanger tank disclosed in this publication. The integrated heat exchanger tank is provided on both sides of a partition member 11 made of aluminum.
A tank piece 15 made of aluminum and having a tube hole 13 formed therein is brazed. A tank body 17 for a radiator is formed on one side, and a tank body 19 for a capacitor is formed on the other side. .

[0004]

However, in such a conventional tank for an integrated heat exchanger, a plurality of parts 1 are required.
Since the two tank bodies 17 and 19 are formed by 1, 15 and 15, a large amount of time is required for assembling, and since there are four brazing locations, brazing defects are likely to occur. was there.

Further, since the partition member 11 is formed of an extruded material, there is a problem that the weight and cost increase. Therefore, as shown in FIG. 11, it has been considered that a flat portion 23 of a roll-formed cylindrical pipe member 21 is directly brazed to obtain a tank for an integrated heat exchanger. Since the butted portion 25 exists in the pipe member 21,
It is necessary to weld the butted portion 25 by seam welding or the like in advance, and there is a problem that the manufacturing cost increases.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide an integrated heat exchanger tank which can eliminate the need for welding a butt portion.

[0007]

According to a first aspect of the present invention, there is provided an integrated heat exchanger tank in which at least one of a cylindrical first tank main body and a second tank main body made of aluminum is disposed on an outer peripheral side.
Formed by a clad material on which a brazing material layer is formed,
At the outer periphery of the first tank body and the second tank body, a contact portion where the first tank body and the second tank body come into planar contact with each other is integrally formed. at different positions of the butt portion formed in the first tank body and the second tank body is located, before the said contact portion and said first tank body and the second tank body
It is formed by brazing each other with a brazing material melted from the brazing material layer .

According to a second aspect of the present invention, there is provided an integrated heat exchanger tank according to the first aspect, wherein the contact portion has a flat portion formed on the first tank body and a flat portion formed on the second tank body. It consists of:

According to a third aspect of the present invention, in the integrated heat exchanger tank according to the first or second aspect, the second tank main body has a cylindrical shape, and the first tank main body has the second tank main body. An abutting portion formed of a concave curved surface that abuts on the outer periphery of the main body is formed.

According to a fourth aspect of the present invention, there is provided an integrated heat exchanger tank according to the third aspect, wherein the first tank body is formed in a rectangular cylindrical shape.

[0011]

According to the first aspect of the invention, there is provided an integrated heat exchanger tank comprising:
The tank body and the second tank body are brazed to each other at the contact portion, but the positions of the butted portions of the first tank body and the second tank body at the contact portion are different. , These butted parts are made of aluminum
The molten brazing material is reliably supplied from the brazing material layer of the cladding material .

[0012] In the integrated heat exchanger tank of the second aspect,
The flat part formed on the first tank body and the flat part formed on the second tank body are brazed to each other. In the integrated heat exchanger tank according to the third aspect, the outer periphery of the second tank body is brazed to the contact portion formed on the outer periphery of the first tank body and having a concave curved surface.

[0013] In the tank for an integrated heat exchanger according to claim 4,
The first tank main body is formed in a rectangular cylindrical shape, and a pipe or the like is connected to a side surface.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a first embodiment of an integrated heat exchanger tank according to the present invention. In the drawings, reference numeral 31 denotes a cylindrical first tank body, and reference numeral 33 denotes a cylindrical second tank body. The tank main body of FIG.

A tube hole 35 is formed in the first and second tank bodies 31, 33. Then, both end surfaces of the first and second tank bodies 31 and 33 are covered with the lid member 3.
7.

A flat portion 39, which is a contact portion, is formed on the opposing surfaces of the first and second tank bodies 31, 33. The above-mentioned first and second tank bodies 31, 33
Is formed by rolling a plate material, and a portion where both ends of the plate material are butted is a butted portion 41.

The butting portion 41 is formed by a flat portion 3 formed on the first tank body 31 and the second tank body 33.
9, and the positions of these butting portions 41 are arranged at different positions at predetermined intervals.

In this embodiment, the plate material is made of an aluminum material, and the aluminum material is formed of a clad material obtained by cladding a brazing material. This clad material is formed by forming a sacrificial corrosion layer (for example, JIS7072) on one side of a core material (for example, JIS3003) made of an aluminum material and forming a brazing material layer (for example, JIS4343) on the other side. I have.

A brazing material layer is located on the outer peripheral side of the first and second tank bodies 31 and 33. Then, the first tank main body 31 and the second tank main body 33 are
And the lid member 37 is brazed to both end surfaces of the first and second tank bodies 31 and 33.

In the brazing of the above-mentioned integrated heat exchanger tank, a non-corrosive flux is applied in a state where the lid members 37 are arranged at both ends of the first and second tank bodies 31, 33, and thereafter, This is performed by heating them in a brazing furnace.
The tank main body 31 and the second tank main body 33 are brazed to each other at the flat portion 39, and the lid member 37
Are brazed to both end surfaces of the first and second tank bodies 31, 33.

Thus, in the above-mentioned integrated heat exchanger tank, the first tank main body 31 and the second tank main body 33
Are brazed to each other at the flat portion 39, but the positions of the butting portions 41 of the first tank body 31 and the second tank body 33 at the flat portions 39 are different. At 41, the brazing material from the molten brazing material layer is reliably supplied.

Accordingly, the butted portion 41 is firmly brazed, and the welding of the butted portion 41 can be eliminated. Also, even if a brazing failure occurs in the butted portion 41, the flat portions 39 are brazed to each other, so that sufficient airtightness or liquid tightness can be ensured.

Further, in the above-described integrated heat exchanger tank, the flat portion 39 formed on the first tank body 31 and the flat portion 39 formed on the second tank body 33 are brazed to each other. Therefore, the first tank body 31 and the second tank body 31
Can be firmly brazed to the tank body 33.

FIG. 3 shows a second embodiment of the integrated heat exchanger tank of the present invention. In this embodiment, the first and second tank bodies 43 and 45 are cylindrical. ,
The first tank main body 43 has a contact portion 47 formed of a concave curved surface that comes into contact with the outer periphery of the second tank main body 45.

In this embodiment, substantially the same effects as in the first embodiment can be obtained. However, in this embodiment,
Since the contact area increases due to the concave curved surface, the first tank body 43 and the second tank body 45 can be brazed more firmly.

FIG. 4 shows a third embodiment of the integrated heat exchanger tank according to the present invention. In this embodiment, the first tank body 49 has a rectangular cylindrical shape, and The tank body 51 has a cylindrical shape.

On the second tank main body 51 side of the first tank main body 49, there is formed a contact portion 53 having a concave curved surface that comes into contact with the outer periphery of the second tank main body 51. Further, an inclined surface 55 is formed continuously to the contact portion 53 having a concave curved surface.

In this embodiment, the first tank body 49 is used as a radiator tank, and the second tank body 51 is used as a condenser tank. The above-described integrated heat exchanger tank is, for example, shown in FIGS.
As shown in the figure, the tube 57 and the fin 59 are used by being arranged above and below a core 61 formed by the fin 59.

An inlet pipe 63 is connected to the upper first tank body 49, and an outlet pipe 65 is connected to the lower first tank body 49. An oil cooler 67 is accommodated in the lower first tank body 49, and an inlet pipe 69 and an outlet pipe 71 of the oil cooler 67 are provided to protrude outward from a side surface.

An inlet pipe 73 and an outlet pipe 75 are connected to both ends of the second tank body 51. In the above-described integrated heat exchanger tank, substantially the same effects as in the first embodiment can be obtained. However, in this embodiment, the contact area increases due to the contact portion 53 having the concave curved surface. The first tank body 49 and the second tank body 5
1 can be brazed more firmly.

Further, since the first tank body 49 is formed in a rectangular cylindrical shape, it is very easy to attach the pipes 63, 65, 69, 71 and the like to the side surfaces. Further, in the above-described integrated heat exchanger tank, since the inclined surface 55 is formed continuously to the contact portion 53 having a concave curved surface, the rear ends 77 of the pipes 63 and 65 are formed as shown in FIG. By contacting the contact portion 53 and the inclined surface 55, the pipes 63 and 65 can be reliably supported.

That is, in a conventional heat exchanger such as a radiator, for example, as shown in FIG. 9, an arc-shaped concave portion 83 is formed on a surface of a tank body 79 facing a pipe hole 81, and the concave portion 83 is formed in the concave portion 83. By inserting the rear end 87 of the pipe 85, the rear end 87 of the pipe 85 is
, And receives a load acting on the tip of the pipe 85. However, the above-described integrated heat exchanger tank reliably supports the rear end 87 of the pipe 85 without forming such a concave portion 83. It becomes possible to do.

In the embodiment described above, an example was described in which the second tank body 51 was a tank of a capacitor. However, the present invention is not limited to such an embodiment. A tank such as a radiator may be used.

[0034]

[0035]

As described above, in the integrated heat exchanger tank according to the first aspect, the butted portion is made of aluminum.
Since the molten brazing material is reliably supplied from the brazing material layer of the clad material and the butted portion is firmly brazed, welding of the butted portion can be eliminated.

[0036] In the integrated heat exchanger tank of the second aspect,
Since the flat portion formed on the first tank main body and the flat portion formed on the second tank main body are brazed to each other, the first tank main body and the second tank main body will be firmly bonded. Can be attached.

[0037] In the integrated heat exchanger tank of the third aspect,
Since the outer periphery of the second tank main body is brazed to the contact portion formed of a concave curved surface formed on the outer periphery of the first tank main body, the first tank main body and the second tank main body will be firmly bonded. Can be attached.

[0038] In the tank for an integrated heat exchanger of claim 4,
Since the first tank main body is formed in a rectangular cylindrical shape, there is an advantage that a pipe or the like can be securely and easily connected to the side surface.

[Brief description of the drawings]

FIG. 1 is a side view showing first and second tank bodies of FIG. 2;

FIG. 2 is a perspective view showing a first embodiment of the integrated heat exchanger tank of the present invention.

FIG. 3 is a side view showing a second embodiment of the integrated heat exchanger tank of the present invention.

FIG. 4 is a side view showing a third embodiment of the integrated heat exchanger tank of the present invention.

5 is a front view showing a heat exchanger using the integrated heat exchanger tank of FIG. 4;

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a top view of FIG. 5;

FIG. 8 is a sectional view showing a state where a pipe is connected to the first tank body of FIG.

FIG. 9 is a sectional view showing a conventional radiator tank.

FIG. 10 is a perspective view showing a conventional integrated heat exchanger tank.

FIG. 11 is a sectional view showing an integrated heat exchanger tank to which a pipe material is directly brazed.

[Explanation of symbols]

 31, 43, 49 First tank body 33, 45, 51 Second tank body 39 Flat portion 41 Butt portion 47, 53 Contact portion

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-94330 (JP, A) JP-A-3-121370 (JP, U) JP-A-2-32374 (JP, U) 25335 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) F28F 9/00-9/26 F28D 1/053

Claims (4)

(57) [Claims] 1. A cylindrical first tank body (31, 43, 49) made of aluminum and a second tank body (3).
3, 45, 51) at least one of
A first layer formed by a clad material on which a layer is formed;
Link body (31, 43, 49) and second tank body
On the outer periphery of (33, 45, 51) , the first tank body (31, 43, 49) and the second tank body (33, 4) are arranged.
(51, 51) in contact with the surface (39, 47, 5).
3) and the contact portions (39, 4)
7, 53) to the first tank body (31, 43, 4).
9) and the butting portion (41) formed between the second tank body (33, 45, 51) and the first tank body (31, 43, 49).
Of the tank body (33, 45, 51) with the contact portion (3
Braze melts from the brazing material layer at 9,47,53)
An integrated heat exchanger tank characterized by being brazed to each other by filler metal. 2. The integrated heat exchanger tank according to claim 1, wherein the contact portion includes a flat portion formed on the first tank body and a second tank body formed on the first tank body. And a flat part (39) formed in the tank for an integrated heat exchanger. 3. The integrated heat exchanger tank according to claim 1, wherein said second tank body (45, 51) has a cylindrical shape, and said first tank body (43, 51) has a cylindrical shape. 49) The integrated heat exchanger tank, wherein a contact portion (47, 53) formed of a concave curved surface that is in contact with the outer periphery of the second tank body (45, 51) is formed. 4. The integrated heat exchanger tank according to claim 3, wherein the first tank main body (49) is formed in a rectangular cylindrical shape.