KR101280619B1 - Heat Exchanger - Google Patents

Abstract

 The present invention relates to a heat exchanger having improved productivity by being able to manufacture the body part constituting the fin, tube and header part in one injection molding in the heat exchanger.

The heat exchanger of the present invention distributes the refrigerant to the tubes by introducing a plurality of tubes arranged in parallel with a flow path through which the refrigerant flows, and the first header formed at one end of the tube and opened to the opposite side of the tube. And a second header configured to store and discharge the refrigerant passing through the tube and to be formed at the other end of the tube and open to the opposite side of the tube, and to form a heat exchanger between the first header and the second header. A body part formed integrally with all parts made of resin; A lid made of a resin for sealing the opened portions of the first header and the second header of the body portion; And a control unit.

Accordingly, the heat exchanger using the resin of the present invention can increase the energy efficiency by reducing the weight of the car by reducing the weight compared to the conventional aluminum heat exchanger, and can reduce the bonding process because the body and the cover are manufactured by only one injection molding. It also has a strong resistance to corrosion even in high temperature environments.

In addition, the heat exchanger of the present invention can be manufactured with only two components of the body part and the cover made of an integrated resin, which can shorten the manufacturing time, reduce the manufacturing cost, and increase productivity.

Tube, pin, header, tank, slide core

Description

Heat Exchanger

1 is an exploded perspective view showing a conventional heat exchanger.

Figure 2 is a perspective view showing an embodiment of a heat exchanger according to the present invention.

Figure 3 is an exploded perspective view showing a heat exchanger according to the present invention.

4 is a schematic diagram of a refrigerant flow of a heat exchanger according to the present invention;

5 is an exploded perspective view showing another embodiment according to the present invention.

6 is a schematic view showing the shape of various pins according to the present invention.

7 is a front view showing the top of the various body parts according to the present invention.

8 is a conceptual diagram illustrating a manufacturing process of the body portion according to the present invention.

9 is a perspective view showing another embodiment of a heat exchanger according to the present invention.

6 is a perspective view showing another embodiment of a heat exchanger according to the present invention.

DESCRIPTION OF REFERENCE NUMERALS

10: body part

11: first header 12: second header

13 tube 13a tube hole

14: pin 15: sealing rib

16: inlet pipe 17: outlet pipe

20: cover

30: heat exchanger of the present invention

The present invention relates to a heat exchanger having improved productivity by being able to manufacture the body part constituting the fin, tube and header part in one injection molding in the heat exchanger.

In recent years, with the increasing interest in environmental protection and energy saving in the global automotive industry, research and development for light weight, miniaturization and high functionalization have been steadily being carried out to satisfy the needs of various consumers as well as research for improving the environment and fuel efficiency. .

In general, the heat exchanger is a part of an air conditioning apparatus, which absorbs one side of heat between two environments having a temperature difference and releases heat to the other side. The heat exchanger is formed by a blower in the process of changing the liquid cooling water into a gas state. When the incoming air is cooled by heat exchange, it acts as a cooling device to supply the cooled air to the interior of the vehicle, and acts as a heating device when releasing warm air by absorbing heat from the outside. do.

1 is an exploded perspective view illustrating a conventional heat exchanger, wherein the heat exchanger includes first header tanks 110 and 111 and second header tanks 120 and 121, first header tanks 110 and 111, and second header tanks. A fin 140 provided between the tube 130 and the tube 130 that is inserted and fixed between the tubes 120 and 121 and forms a cooling water flow path, and the first header tanks 110 and 111 or the second header tank. The heat exchanger inlet pipe 150 is formed at the 120 and 121, and the outlet pipe 160 through which the coolant is discharged. In the heat exchanger having the structure as described above, an inlet pipe 150 is formed at one side of the first header tanks 110 and 111 so that high temperature coolant flows in and the introduced coolant moves through the tube 130 and the fins 140. ) And is cooled through heat exchange with external air and discharged through the outlet pipe 160. The heat exchanger was often made of aluminum to increase heat exchange efficiency.

However, as shown in FIG. 1, the conventional heat exchanger includes a tube 130, a fin 140, a first header 111, a second header 121, a first tank 110, and a second tank 120. Since it is made of a tube 130 and the header (111, 121) and the header (111, 121) and the tank (110, 120) in addition to the bonding work is required, as well as additional work to compensate for the shortcomings of the bonding work. Since the time required for manufacturing the heat exchanger is increased, it is necessary to increase the production cost.

In addition, since the heat exchanger made of aluminum has a large weight, it lowers the overall energy efficiency. Particularly, when the heat exchanger made of aluminum is used in a subtropical region having a high temperature, the corrosion rate of the heat exchanger is increased at a junction, thereby increasing the heat exchange. The high temperature cooling water circulating inside the device leaks, which has a short service life of the heat exchanger.

Accordingly, the present invention has been made to solve the above problems, the object of the present invention is to reduce the weight of the energy required to drive the vehicle and improve the corrosion resistance to prevent the leakage of the internal cooling water to increase the service life In particular, it is possible to provide a heat exchanger that is easy to use in subtropical regions in which a high temperature causes a lot of corrosion problems.

In addition, another object according to the present invention is easy to manufacture with only two components of the body portion and the cover covering the first header and the second header of the body portion and the body portion can be produced by only one injection molding to increase productivity To provide a heat exchanger.

The heat exchanger of the present invention for achieving the above object is introduced into a plurality of tubes arranged in parallel with the flow path through which the refrigerant flows and the refrigerant is distributed to the tube and formed at one end of the tube is formed of the tube Heat exchange performance between the first header and the second header, the first header opened to the opposite side, the second header formed to store and discharge the refrigerant passing through the tube and formed at the other end of the tube and opened to the opposite side of the tube. Pins are formed integrally and all parts are made of resin body formed to improve the; A lid made of a resin sealing the opened portions of the first header and the second header of the body portion; And a control unit.

In addition, the body portion and the cover is characterized in that each is produced integrally by one injection molding, the tube of the body portion is characterized in that the tube hole is formed by a slide core fitted in both directions, the body portion Alternatively, the cover is characterized in that the inlet pipe and the outlet pipe formed by the slide core is attached to one side.

In addition, the body portion is characterized in that the sealing rib protruding in the outward direction of the circumference of the support plate .

Hereinafter, the heat exchanger of the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

2 is a perspective view showing an embodiment of a heat exchanger 30 according to the present invention, Figure 3 is an exploded perspective view showing a heat exchanger 30 according to the present invention.

The heat exchanger 30 according to the present invention distributes the refrigerant to the tube 13 by introducing a plurality of tubes 13 and the parallel arranged with a flow path through which the refrigerant flows and distributes the refrigerant to one side of the tube 13. The first header 11 formed at an end and opened to the opposite side of the tube 13 stores and discharges the refrigerant passing through the tube 13, and is formed at the other end of the tube 13 so as to form the tube 13. The second header 12 opened to the opposite side of the), the fin 14 formed to improve the heat exchange performance between the first header 11 and the second header 12 are integrally formed and all parts are made of resin. Body portion 10 made up; A lid 20 made of a resin for sealing an opened portion of the first header 11 and the second header 12 of the body portion 10; And a control unit.

That is, the body portion 10 is characterized in that the first header 11 and the second header 12, the tube 13 and the pin 14 is formed integrally and can be manufactured in one injection molding.

Since the heat exchanger 30 of the present invention is made of a resin, the weight of the heat exchanger 30 can be lowered compared to that of the existing aluminum heat exchanger 30, and thus the energy efficiency can be increased by reducing the weight of the automobile.

The tube 13 of the body portion 10 may form a tube hole 13a by two slide cores in contact with each other, and the inlet pipe 16 and the outlet pipe 16 integrally attached to the body portion 10 may be formed. 17) can also be formed using a slide core.

The heat exchanger 30 of the present invention further includes a cover 20 covering the first header 11 and the second header 12 of the body portion 10 to provide the first header tank and the second header tank. Can be formed. That is, since the heat exchanger 30 can be formed of two components, the body portion 10 and the cover 20, the mass production can be performed at a low cost, thereby reducing the manufacturing cost.

In addition, the heat exchanger 30 of the present invention preferably has a sealing rib 15 continuously formed along the circumferential direction of the body portion 10 on one side of the body portion 10. As the sealing rib 15 is integrally formed, air passing through the tube 13 and fin 14 forming regions in the existing heat exchanger 30 is directed toward the inlet pipe 16 and the outlet pipe 17. The leakage can be prevented, and the need to further provide a separate sealing member for preventing the existing air leakage can be eliminated.

4 is a schematic diagram of a refrigerant flow of the heat exchanger 30 according to the present invention. 4 illustrates an embodiment in which the inlet pipe 16 is formed in the first header tank and the outlet pipe 17 is formed in the second header tank. The second header tank which is introduced into the first header tank formed of the header 11 and the cover 20, circulated through the tube 13, and is formed of the second header tank 12 and the cover 20 again. It is discharged through the outlet pipe 17 through.

The heat exchanger 30 shown in FIG. 4 is a position where the inlet pipe 16 and the outlet pipe 17 are formed in one embodiment, and a position of a baffle provided in the first header tank and the second header tank. Of course, it can be natural to have various types of refrigerant flow.

5 is an exploded perspective view showing another embodiment according to the present invention, the heat exchanger 30 of the present invention is a slide core which forms two basic molds, an inlet pipe 16, an outlet pipe 17 and a tube 13; It can be simply manufactured by using the mold and the slide core as shown in Figure 5 by modifying the shape of the pin 14 can be variously manufactured and the position of the tube 13 can be easily changed.

Figure 6 is a schematic diagram showing the shape of the various pins according to the present invention Figure 6 (a) shows a pin having a curved waveform, Figure 6 (b) is a more angled pin compared to Figure 6 (a) 6 (c) shows a pin having a rhombus. Of course, the heat exchanger of the present invention can be manufactured in various forms in addition to the form of the fin shown in FIG.

7 is a front view showing the upper portion of the various body portion 10 according to the present invention spaced apart a predetermined distance on the inner surface of the first header 11 and the second header 12 of the heat exchanger 30 of the present invention. A tube hole 13a that flows is formed to form the tube 13.

FIG. 7 (a) shows a shape in which the tubes having an elliptical cross section are arranged in two rows in the form of the heat exchanger 30 shown in FIGS. 3 to 6, and FIG. FIG. 7 (c) illustrates a form in which the tubes having an elliptical cross section are arranged in one row. As shown in FIG. 7, the shape and number of cross sections of the tube 13 may also be variously manufactured by adjusting the shapes of the mold and the slide core.

The tube 13 is formed by a slide core provided in the up and down direction as shown in FIG. FIG. 8 illustrates a form in which the elliptical tubes of FIG. 7 (c) are arranged in one row, and the upper and lower slide cores are fitted to form a tube hole 13a.

The body portion 10 is basically formed by two molds provided at the front and the back, and forms a tube 13 by using a slide core, and the inlet pipe 16 and the outlet pipe 17 also use the slide core. Is formed.

2 to 8 illustrate an embodiment in which an inlet pipe 16 and an outlet pipe 17 are formed in the body portion 10. As shown in FIG. 9, the inlet pipe 16 and the outlet pipe 17 are illustrated. May be provided on the cover 20.

FIG. 9 is a perspective view showing another embodiment of the heat exchanger 30 according to the present invention, and includes a baffle for partitioning the center of the first header 11 in the longitudinal direction and covering the first header 11. The inlet pipe 16 and the outlet pipe 17 are provided in the 20 so that the refrigerant introduced through the inlet pipe 16 is distributed through the tube 13 formed at the lower portion of the first header 11. The U-flow heat exchanger 30 is introduced into the second header 12 and moved to the first header 11 through the tube 13 and discharged through the outlet pipe 17.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Accordingly, the heat exchanger of the present invention can increase the energy efficiency by reducing the weight of the vehicle by reducing the weight compared to the conventional aluminum heat exchanger by using a resin, and the body portion and the cover can be manufactured by only one injection molding process to achieve the joining process. It can be reduced and has a strong corrosion resistance even in high temperature environments.

In addition, the heat exchanger of the present invention can be manufactured with only two components of the body part and the cover made of an integrated resin, which can shorten the manufacturing time, reduce the manufacturing cost, and increase productivity.

Claims (5)

A plurality of tubes 13 are arranged in parallel with a flow path through which the refrigerant flows, and the refrigerant is introduced to distribute the refrigerant to the tube 13 and formed at one end of the tube 13 to form the tube 13. The first header 11 opened to the opposite side of the second and the second refrigerant is stored and discharged through the tube 13 and formed at the other end of the tube 13 and opened to the opposite side of the tube 13 The header 12, the fin 14 formed to improve the heat exchange performance between the first header 11 and the second header 12, and the first header 11 and the second header 12 A plate-shaped support plate 18 connecting the first header 11 and the second header 12 to one side in the longitudinal direction, and an inlet for supplying refrigerant to the first header 11 side to the support plate 18. A pipe 16, an outlet pipe 17 through which refrigerant is discharged from the second header 12 side to the support plate 18, and two of the support plate 18. The body portion 10 is the sealing rib 15 is integrally formed all parts are made of resin zero projecting outward; A lid 20 made of a resin for sealing an opened portion of the first header 11 and the second header 12 of the body portion 10; Heat exchanger comprising a. The method of claim 1, The body portion (10) and the cover (20) is a heat exchanger, characterized in that each manufactured by one injection molding. The method of claim 2, Tube 13 of the body portion 10 is characterized in that the tube hole (13a) is formed by a slide core fitted in both directions. The method of claim 2, The heat exchanger, characterized in that the inlet pipe (16) and outlet pipe (17) is formed by a slide core. delete

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