KR200318739Y1 - Integrated heat exchanger for automobiles - Google Patents

Abstract

The present invention relates to a heat exchanger of an automobile. The heat exchanger of the present invention is formed of a single metal plate, the first tube is formed by bending one end of the metal plate to the upper surface of the body portion, and is formed by bending the other end of the metal plate to the upper surface of the body portion Contains 2 tubes. In addition, the first tube is integrally provided with an inner pin for integrally forming the inner pin forming portion integrally formed at the outermost side of the plate. A heat dissipation fin is interposed between the first tube and the second tube. The heat exchanger is formed by bending both sides of a single metal plate.

Description

Integrated heat exchanger for automobiles

The present invention relates to an integrated heat exchanger for a vehicle, and more particularly, an integral heat exchanger for a vehicle configured to integrally form at least two tubes for heat dissipation of a fluid and to simultaneously form an inner pin of one tube. It is about the flag.

In general, an engine that generates a driving force for driving a vehicle requires sufficient heat dissipation because it is driven at a high temperature. Such a cooling device has a structure in which cooling water is circulated between a water jacket formed in an engine block and a radiator installed in a front portion of an engine room.

And the vehicle currently on the market is installed an air conditioning device for adjusting the air inside the car to a comfortable temperature. The air conditioner is made of a liquid refrigerant by heat dissipating the high-temperature, high-pressure gaseous refrigerant due to the compression of the compressor to the condenser, and then lowered to supply the low-temperature air into the vehicle through the evaporator. In such a condenser, a predetermined heat dissipation should be made.

In addition, an oil cooler for cooling the engine oil and the mission oil is mounted inside the vehicle, and an intercooler may be installed depending on the type of engine.

Since each of the above apparatuses requires sufficient heat dissipation, in order to cool them, they are provided in front of the engine room and are configured to be able to dissipate smoothly.

In the related art, since all the heat exchangers as described above are manufactured and installed separately, the manufacturing process and the assembling process are very complicated. And to solve this disadvantage, several types of heat exchangers have been proposed in which the radiator portion and the condenser portion are integrated. Also, Korean Unexamined Utility Model No. 2000-0008552 discloses such an integrated heat exchanger, and the main parts thereof are shown in FIGS. 1 and 2.

As shown, the heat exchanger according to the above technique comprises: a pair of radiator tanks 26 and 28 connected to the jacket side of the engine; A plurality of radiator tubes (40) formed of a tubular body through which cooling water can be distributed while dissipating heat to external air and connected to the left and right radiator tanks (26, 28); Left and right condenser headpipes 36 and 38 positioned parallel to the radiator tanks 26 and 28; Positioned in parallel with the radiator tube 40, a plurality of condenser tubes connected to the condenser head pipes (36, 38) made of a tubular body that can be distributed in a state in which a high-temperature refrigerant can release heat to external air ( 42); A plurality of fins 44 formed in a pleated shape for increasing heat transfer to external air and configured between the radiator tube 40 and the condenser tube 42; And a radiator 20 including the radiator tanks 26 and 28, and reinforcement tables 50 and 52 for supporting a condenser having left and right condenser head pipes.

However, even in such a technique, only the condenser and the radiator 20 are integrally assembled, and each of the tubes 40 and 42 is also manufactured and assembled separately, thereby substantially simplifying the parts and improving the assemblability. It can be said that the thing is not fully achieved.

3 shows a typical condenser tube in cross section. As shown, the inner condenser tube is provided with a plurality of inner pins 42b inside the outer casing 42a having a rectangular cross section, and a plurality of inner pipes are compartmentalized by the inner pins. Such a condenser tube is designed to withstand the high pressure of the refrigerant delivered from the compressor.

For example, similarly to the oil cooler tube, the inner pin is formed to partition the inside of the tube. As described above, in the manufacture of a tube having a separate inner pin therein, for example, the condenser tube is generally extruded in consideration of corrosion of a material. However, in the case of the oil cooler tube or the intercooler tube, after inserting the inner pin 42b manufactured separately with respect to the outer casing 42a, it may be configured to be fused and integrated with each other by brazing.

According to another conventional technique, the inner pin inserted into the condenser tube is shaped so that its cross section has a wave shape, but such inner pin is also manufactured separately and then inserted into the outer casing. It is integrated by.

It can be seen that the tube according to the related art as described above is integrated by brazing after separately manufacturing the casing and the inner pin. Therefore, inconvenience and assembly disadvantages of having to manufacture each tube separately are raised.

The present invention is to solve the conventional problems as described above, and to provide a heat exchanger that can be integrally formed with a pair of inner tube and at the same time the inner pin installed in one tube integrally formed. do.

1 is a perspective view of a conventional heat exchanger.

2 is a partially enlarged perspective view of a conventional heat exchanger.

3 is a cross-sectional view of a conventional condenser tube.

4 is an exemplary perspective view of a heat exchanger tube of the present invention.

5 is an exemplary view showing a manufacturing process of the tube of the present invention.

6 is a perspective view of a heat exchanger of the present invention.

Automotive heat exchanger of the present invention for achieving the above object is formed in a metal plate, the first tube is formed by bending one end of the metal plate to the upper surface of the body portion; A second tube formed by bending the other end of the metal plate to an upper surface of the body portion; And an inner pin forming portion integrally formed at the outermost side of the plate at one side of the first tube to be bent to the upper surface side of the metal plate, the tube having inner pins configured to compartmentalize the inner side of the first tube; It characterized in that it comprises a heat radiation fin installed in.

And the body portion between the first tube and the second tube is preferably formed in the longitudinal slits.

In addition, the heat dissipation fins may be separately interposed between the first tube and the second tube, and may be configured as a pair formed separately.

According to another embodiment, the heat dissipation fin may be configured to be integrally interposed between the first tube and the second tube, and a slit in the longitudinal direction may be formed therebetween.

The end of the tube on which the inner pin is not formed is preferably in surface contact with the upper surface of the body portion.

Next will be described in more detail with respect to the present invention based on the embodiment shown in the drawings.

Figure 4 is an exemplary perspective view of an integrated tube 100 according to the present invention, Figure 5 is an exemplary view showing a process for making an integrated tube of the present invention.

First, as shown in FIG. 4, the tube 100 used in the integrated heat exchanger of the present invention includes a first tube 120 formed on one side (left side of the drawing) and a second tube formed on the other side (right side of the drawing). It includes two tubes 140.

The first tube 120 and the second tube 140 are integrally formed, and are formed from a single metal plate (for example, an aluminum plate having excellent thermal conductivity). Therefore, it can be seen that the tube according to the present invention is integrally formed from one metal plate, and the first tube 120 is formed on one side and the second tube 140 is formed on the other side.

The first tube 120 and the second tube 140 are formed by bending both side ends of a sheet of metal plate upward and inward with respect to the body portion 130, and a predetermined fluid therein. It is formed in a tubular shape so that it can flow.

An inner pin 122 is formed in the first tube 120 to withstand the pressure of the fluid flowing therein. The inner pin 122 is formed integrally with the first tube 120, so as to sufficiently withstand the pressure of the fluid flowing inside the tube by compartmentalizing the interior of the first tube 120 in several parts. It is composed. And the inner pin 122, by processing the outer end of the first tube 120 in the shape of a wave, and bending the portion to the upper surface of the body portion 130, of the first tube 120 The inner pin 122 is formed integrally therein can be formed. A flow path through which fluid flows is formed in the first tube 120 having the inner pin 122 formed as described above. For example, a condenser tube, an oil cooler tube, or an intercooler tube, and the fluid is formed inside the first tube 120. As it flows, it becomes possible to perform heat exchange.

And the inner end 142 of the second tube 140 is formed to be in surface contact with the upper surface of the body portion 130 of the tube 100 of the present invention after bending to the top. As such, by processing the inner end portion 142 of the second tube 140 to be in surface contact with the body portion 130, it can be more firmly fused in the brazing process of the tube 100 is completed. In the state where the inner end portion 142 is in contact with the upper surface of the body portion 130, a flow path through which a fluid (for example, an antifreeze of a radiator) flows is formed in the second tube 140.

And the body portion 130 between the first tube 120 and the second tube 140, in order to prevent heat conduction between both, it is preferable to form a slit 132 partially cut along the longitudinal direction. Do.

Next, look at the manufacturing process of the tube 100 according to the present invention based on FIG.

The tube 100 of the present invention is manufactured from a single aluminum plate P having a constant width. In the state shown in FIG. 5A, the inner pin forming part 122a for forming the inner pin 122 is formed on one side portion (the left portion on the drawing) of the aluminum plate. The inner pin molded part 122a is a portion which becomes the inner pin 122 shown in FIG. 4 after passing through the process described later.

The inner pin molding part 122a may include a plurality of compartments inside the first tube 120 so that the first tube 120 can withstand the pressure of the fluid flowing therein. If it is comprised, it will not restrict | limit by shape. As shown in the illustrated embodiment, the inner pin shaping portion 122a may be formed to have a wave shaped cross section.

The inner pin shaping portion 122a is formed by pressing a plurality of rollers on, for example, upper and lower portions of the aluminum plate P in a planar state. Such a roller is composed of substantially a plurality of stages, preferably formed by several pressing processes, for example, may be composed of a roller of 10 or more stages.

After the inner pin forming portion 122a as shown in (a) is completed through the above process, as shown in (b), the inner pin forming portion 122a is bent by 180 degrees clockwise. By forming the inner pin molding portion 122a in contact with the upper surface of the body portion 130 which is the base surface. As such, the process of bending the inner pin molded part 122a by 180 degrees may be possible by various methods.

That is, for example, it may be possible to bend the inner pin molding portion 122a 180 degrees in contact with the body portion 130 in one step, but a multi-step process using a plurality of rollers (for example, 10 or more steps) It will be possible to bend 180 degrees so that the inner pin molding portion 122a contacts the upper surface of the body portion 130 while passing through).

And as in the above process, the process for forming the second tube 140 is started on the right side of the body portion 130. For example, starting to bend the right end of the body portion 130 upward, the right end 142 is formed to be upward.

Next, in the process (c), the inner pin molded part 122a is bent 180 degrees clockwise again to the one body portion 124 which is in contact with the upper surface. By bending the one side body portion 124 in contact with the upper surface of the inner pin forming portion 122a by 180 degrees, the first tube 120 may be formed on the left portion of the body portion 130 substantially. Here, it is also possible to bend the upper surface portion 124 180 degrees in various ways. For example, as described above, the first body portion 124 may be bent over multiple stages using a plurality of rollers. It will be possible to form the tube 120.

And in this process, the second tube 140 is also formed on the right side of the body portion 130. That is, by bending a portion of the right side of the body portion 130 including the right end portion 142, the right end portion 142 is in contact with the upper surface of the body portion 130 which is located almost in the middle portion. The second tube 120 is formed at the right side of the body 130.

As described above, in the state (c), the inner pin forming portion 122a and the right end portion 142 are in contact with the upper surface of the body portion 130. By performing brazing therein, the inner pin forming portion 122a and the right end portion 142 will be welded and integrated on the upper surface of the body portion 130, and thus a complete first tube 120 and a second portion. Tube 140 may be formed.

Here, the end 142 of the second tube 140 is preferably molded to perform a constant surface contact on the upper surface of the body portion 130. As such, the end tube 142 and the body portion 130 are configured to be in surface contact with each other, so that the end portion 142 and the body portion 130 are more fusion-bonded and adhered more reliably during brazing to form a second tube. The formation of 140 may be easier.

Tube 100 according to the present invention, it is possible to use the first tube 120 as a condenser tube, the second tube 140 as a radiator tube. And the tube 100 having the first tube 120 and the second tube 140 according to the present invention, in addition to the radiator tube and oil cooler tube, radiator tube and inner cooler tube, condenser tube and intercooler tube, In addition, it will be possible to apply the oil cooler tube and the intercooler tube.

Next, referring to FIG. 6, the whole heat exchanger using the tube 100 will be described.

As shown in FIG. 6, the tube 100 according to the present invention as described above, the first tube 120 is used as a condenser tube, and the second tube 140 is used as a radiator tube. Condenser head pipes 120A and 120B are installed at both sides of the first tube 120, so that refrigerant flows through the first tube 120 extending between the condenser head pipes 120A and 120B. Radiator tanks 140A and 140B are installed at both sides of the second tube 140, and antifreeze flows through the second tube 140.

As described above, a plurality of the first tube 120 and the second tube 140 integrally formed are provided above and below at regular intervals, and a heat dissipation fin 200 is provided therebetween. In addition, the tubes 120 and 140 and the heat dissipation fins 200 are integrally formed by fusion with the surfaces contacting each other by brazing performed in a high temperature furnace.

The heat dissipation fin 200 is for heat dissipation more efficiently by thermal conduction in the respective tubes 120 and 140. The heat dissipation fin 200 has a shape that is repeated at regular intervals, that is, a shape in which mountains and valleys continuously overlap each other, thereby maximizing a contact surface area with air.

In addition, in the illustrated embodiment, the heat dissipation fin 200 is composed of one interposed between the first tube 120 and the second tube 140. In this case, when the heat dissipation fins 200 are configured as one, in order to minimize heat exchange to both sides through the heat dissipation fins 200 between the first tube 120 and the second tube 140, It is preferable to form the slits 210 in the longitudinal direction on the heat dissipation fin 200.

Although not shown, the heat dissipation fins 200 may be paired separately between the first tube 120 and the second tube 140, respectively. As such, when the fins between the first tube 120 and the second tube 140 are configured in pairs, each of which is formed separately, thermal conduction between the pair of heat dissipation fins does not occur, and thus more efficient heat dissipation can be performed. Could be.

As described above, it can be seen that the tube 100 having the first tube and the second tube according to the present invention can be applied as a cooling tube for an automobile. And within the scope of the basic technical idea of the present invention, many other modifications are possible to those of ordinary skill in the art, as well as the present invention should be interpreted based on the appended claims. .

According to the present invention as described above, it can be seen that a pair of tubes which can be used for different purposes, respectively, are molded integrally. Therefore, it is possible to expect the advantage that the overall configuration is simple and at the same time easier manufacturing and assembly. In addition, even when the inner pin is installed inside, such as a condenser tube or an oil tube, the inner pin itself is molded integrally with the outer appearance of the tube, so that the inner pin can be manufactured more simply and the heat exchanger can be more easily assembled. The benefits are

Claims (5)

A first tube formed from a single metal plate and formed by bending one end of the metal plate to an upper surface of a body part; A second tube formed by bending the other end of the metal plate to an upper surface of the body portion; And an inner pin forming portion integrally formed at the outermost side of the plate at one side of the first tube to be bent toward the upper surface of the metal plate, the tube having inner pins configured to compartmentalize the inner side of the first tube; An integrated heat exchanger for automobiles, comprising heat dissipation fins installed between the tubes. The integrated heat exchanger of claim 1, wherein a longitudinal slit is formed in a body portion between the first tube and the second tube. The integrated heat exchanger according to claim 1 or 2, wherein the heat dissipation fins are interposed separately between the first tube and the second tube, and are constituted by a pair formed separately. The integrated heat exchanger of claim 1 or 2, wherein the heat dissipation fin is formed in an integral type interposed between the first tube and the second tube, and a slit in the longitudinal direction is formed therebetween. . The integrated heat exchanger according to claim 1 or 2, wherein an end portion of the tube on which the inner pin is not formed is in surface contact with the upper surface of the body portion.