KR20090076445A - Radiator tank with oilcooler - Google Patents

Abstract

A radiator tank equipped with built-in oil cooler is provided to remove a fastening unit combining a radiator tank side through brazing without using a separate fixing unit. A radiator tank(200) equipped with built-in oil cooler includes a shape of which one side is opened. A pair of hollow parts are formed on a lower surface(211) of which upper surface is opened at a constant distance. The tank includes an oil cooler. The radiator tank equipped with the built-in oil cooler includes a main body(130), an inlet pipe(110), and an outlet pipe(120). The inlet pipe and the outlet pipe are combined on the hollow part.

Description

Radiator Tank with Oil Cooler

The present invention relates to an oil cooler built-in radiator tank, and relates to an oil cooler built-in radiator tank by utilizing the radiator tank side as a surface through which the oil cooler flows, thereby simplifying the structure and facilitating fastening.

Radiator is configured to prevent the temperature of the engine rises above a certain temperature, the high temperature cooling water absorbing the heat generated by the combustion while circulating inside the engine is circulated by the water pump to pass through the radiator to the outside It is a heat exchanger that releases heat to prevent overheating of the engine and maintains an optimal operating condition.

On the other hand, the oil cooler (Oil Cooler) is provided in the automatic transmission vehicle is a device for cooling the engine oil of the torque converter or power transmission system. Since the temperature of the automatic transmission oil communicating with the inside of the oil cooler is higher than the temperature of the radiator, heat is exchanged by using the engine coolant of the radiator and cooled.

The oil cooler can be largely divided into a built-in oil cooler and an external oil cooler provided inside the radiator tank, and can be classified into a double tube oil cooler and a stacked oil cooler according to its shape.

The present invention relates to a double tube oil cooler (built-in type), a conventional double tube oil cooler is shown in Figures 1a and 1b.

As shown in FIG. 1, the oil cooler is installed in one tank of the radiator and fixed.

The conventional double tube type oil cooler 80 is installed in the radiator tank 90 in which a pair of hollow portions 91 are spaced apart by a predetermined distance. An inner pin 11 interposed between the double pipes and the body 10 through which oil is distributed; Is formed in a tubular shape on one side of the outer surface of the main body 10 and penetrates the radiator tank 90 to protrude outside the radiator tank 90, the thread 21 is formed on the outer surface of the protruding tube, the radiator tank (90) an entrance / exit boss portion 20 having an inner seating portion 22 having a circumferential surface protruding to be in close contact with the inner side surface; Sealing means (60) provided between the inner seating portion (22) of the inlet / outlet boss portion (20) and the inner surface of the radiator tank (90); Fixing means 31 coupled to the thread 21 of the inlet and outlet boss parts 20 to fix the main body 10; An inlet pipe 40 and an outlet pipe 50 which are fastened by end portions of the inlet and outlet boss parts 20 and the fastening means 32 to allow oil to flow in and out; And a washer (70) provided between the fixing means (31) and the radiator tank (90) to maintain airtightness. Characterized in that it is formed to include.

In the conventional double tube oil cooler as described above, oil is distributed between the double tubes and the coolant of the radiator is exchanged between the inner and outer surfaces of the radiator to exchange heat.

However, in the conventional oil cooler, since the nut is coupled to the inlet / outlet boss part and fixed to the radiator tank, the nut is rotated as time goes by, so that the fastening force is weakened and a separate component such as a washer is required to prevent rotation of the fixing means. There is a problem that the number of parts required according to the increase, there is a problem that the fastening torque is damaged due to the excessive tightening torque (tightening torque) of the fixing means when excessively tightened to prevent the fastening force is deteriorated, There is a problem that is not secured.

In addition, the main body and the boss is moved through a hollow formed in the radiator tank so that a certain portion protrudes, the boss is fixed to the radiator tank and a thread is formed a predetermined length or more to connect the inlet pipe and the outlet pipe, Since the radiator tank has a shape in which one side having a cross-section “c” is open, it is difficult to mount the main body and the boss assembly to pass through the hollow formed on one side of the radiator tank, so that the entire fastening process is difficult. have.

On the other hand, the stacked oil cooler is shown in Figure 2, the stacked oil cooler 6 is formed in a pair of header tank 5, the header tank 5 is formed at a predetermined distance, such as the configuration of a general heat exchanger. Inlet pipe (3) and outlet pipe (4) formed respectively; Both ends are fixed to the header tank 5 to form a flow path (1), and the pin (2) interposed between the tube (1).

The fin (2) of the stacked oil cooler means an outer fin formed between a portion of the outer tube (1) and the tube (1) formed in the portion where the coolant flows inside the radiator tank, Inner pins may be separately formed in a space through which the oil inside the tube 1 flows.

The laminated oil cooler has the advantage that the tube and the fins are stacked to increase the heat exchange efficiency compared to the double tube oil cooler, but the structure is complicated and the oil flowing inside the viscosity is high viscosity compared to the general fluid This is not smooth, and thus the oil introduced through the inlet pipe is difficult to be uniformly distributed and is not easily discharged through the outlet pipe, thereby degrading heat exchange efficiency.

The present invention has been made to solve the problems as described above, the object of the present invention is to utilize the radiator tank surface as the surface in which the oil cooler flows and by forming integrally by brazing can eliminate the configuration for fastening the It is to provide a radiator tank with a built-in oil cooler that simplifies the structure and further improves the productivity.

The oil cooler built-in radiator tank of the present invention has a form in which one side is open, and a pair of hollow parts are formed by being spaced apart by a predetermined distance on the bottom surface opposite to the open surface, and an oil cooler in which an oil cooler is embedded In the built-in radiator tank, the oil cooler built-in radiator tank has one side is opened so that the cross-section is a "c" shape, the main body is provided to form a predetermined space in which the oil and the surface is formed the hollow portion; And an inlet pipe and an outlet pipe respectively coupled to the hollow portion. Characterized in that it is formed to include.

In addition, the oil cooler built-in radiator tank is characterized in that the inlet pipe, outlet pipe, and the body is formed of an aluminum material.

In addition, the oil cooler built-in radiator tank is characterized in that the brazed coupling after the protruding both sides of the main body is fitted.

In addition, the inlet pipe and the outlet pipe is characterized in that the bead protruding outward to determine a position that is closely fixed to the outer surface of the radiator tank, the end is expanded and fixed before the main body is coupled to the radiator tank .

In addition, the main body is characterized in that the concave portion having a predetermined depth in the longitudinal direction in the longitudinal direction is formed on the lower surface so that the area in which the heat flowing inside the oil and cooling water is increased.

The main body is characterized in that a plurality of support portions forming a plurality of channels therein are formed long in the longitudinal direction of the main body, and an inner pin is interposed between the support portions.

On the other hand, the manufacturing method of the oil cooler built-in radiator tank of the present invention has a form in which one side is open, and a pair of hollow portions 210 spaced apart by a predetermined distance from the bottom surface 211 opposite to the open surface. In the manufacturing method of the oil cooler 100 built-in radiator tank 200, the oil cooler 100 is formed therein, the manufacturing method of the oil cooler 100 built-in radiator tank 200 is a) the radiator Fixing the inlet pipe 110 and the outlet pipe 120 to the tank 200 hollow portion 210 (Sa); b) a main body having one side open to have a cross-sectional shape in the radiator tank 200 so as to have a "c" shape, and forming a predetermined space in which a surface of the hollow portion 210 is formed and the oil flows ( Assembling 130 (Sb); And c) the brazing step Sc; Characterized in that it is prepared to include.

Accordingly, the oil cooler built-in radiator tank of the present invention can utilize the radiator tank surface as the surface in which the oil cooler flows and can be combined by brazing without a separate fixing means to eliminate the configuration for fastening, and to improve productivity There is an advantage.

Hereinafter, the oil cooler 100 built-in radiator tank 200 of the present invention having the characteristics as described above will be described in detail with reference to the accompanying drawings.

3 is a perspective view of the oil cooler 100 built-in radiator tank 200 according to the present invention, Figure 4 is an exploded perspective view of the oil cooler 100 built-in radiator tank 200 shown in Figure 3, Figure 5 It is AA 'sectional drawing of the oil cooler 100 built-in radiator tank 200 shown in FIG. 3, FIG. 6A is BB' sectional drawing of the oil cooler 100 built-in radiator tank 200 shown in FIG. 6B is a cross-sectional view taken along line CC ′ of the oil cooler 100 built-in radiator tank 200 illustrated in FIG. 3.

The oil cooler 100 built-in radiator tank 200 of the present invention having the characteristics as shown in Figures 3 to 6b has a shape having a cross-section "C" in one side of the open shape, the open surface In the oil cooler 100 built-in radiator tank 200 in which a pair of hollow portions 210 are formed to be spaced apart by a predetermined distance on a lower surface 211 opposite to the oil cooler 100. The oil cooler 100 is a built-in tank body 130 to form a predetermined space in which the oil and the surface of the radiator tank 200 flows; Inlet pipe 110 through which oil is introduced; And an outlet pipe 120 through which oil is discharged.

The main body 130 has one side open in a cross-section having a “c” shape, and the open one side is closed by a surface 211 on which the hollow part 210 is formed to form a predetermined space in which oil flows. As the basic body of the oil cooler 100, at this time, the width (distance including the material thickness of the body 130) of the main body 130 is formed to be the same as the inner side of the radiator tank 200 to protrude the Both side surfaces (130a, 130b) is preferably fitted into the radiator tank 200 to be able to delete the separate fixing means.

In addition, the oil cooler 100 built-in radiator tank 200 is the inlet pipe 110, the outlet pipe 120, and the body 130 is formed of an aluminum material to increase the heat exchange performance of oil and cooling water. It is preferable.

In general, the radiator 1000 is a tank (200, 300) is provided side by side spaced apart at a predetermined distance (one tank 200, the oil cooler 100 is built-in); An inlet pipe 500 and an outlet pipe 600 provided in the tanks 200 and 300; And a header 430 coupled to the tank to form the header tanks 200 and 300, a tube 410 fixed at both ends to the header 430, and a pin 420 interposed in the tube 410. After the core portion 400 is assembled to be finally bonded through brazing (see FIG. 9 (d)).

Therefore, the oil cooler 100 built-in radiator tank 200 of the present invention does not require a separate fixing means, the main body 130 is fitted and the core 400 and the oil cooler 100 is not embedded Brazing coupled after assembly with the tube 410 has the advantage that it is possible to delete the components for the conventional assembly and to further improve the productivity by using the existing brazing without an additional process.

The inlet pipe 110 and the outlet pipe 120 for introducing the oil to the main body 130 also bead 111 to determine the position in close contact with the outer surface 211 of the radiator tank 200 so that the fixing means can be deleted Protruding outward, the inlet pipe 110 or outlet pipe 120 is inserted into the hollow portion 210 before the main body 130 is coupled to the radiator tank 200, the radiator tank ( 200) It is expanded and fixed inside.

That is, the inlet pipe 110 or the outlet pipe 120 penetrates through the hollow part 210 so that an end portion of the inlet pipe 110 or the inside of the radiator tank 200 is expanded, and the bead 111 is located outside the radiator tank 200. It is fixed by).

In addition, the oil cooler 100 built-in radiator tank 200 of the present invention is concave portion 131 having a predetermined depth in the longitudinal direction in the longitudinal direction on the lower surface of the main body 130 to widen the contact area between the coolant and oil. Is preferably formed.

The number and depth of the recess 131 may be variously formed. As shown in FIGS. 6A and 6A, the depths of the recess 131 protrude from both sides of the main body 130. It may be formed to have the same height as 130a, 130b to be in contact with the radiator tank 200 in which the hollow portion 210 is formed, a plurality of concave portions 131 may be formed long in the longitudinal direction.

The concave portion 131 is the center of the inlet pipe 110 or the outlet pipe 120 in communication with each other in the longitudinal direction of the main body 130 so as to allow the oil to flow (to form a predetermined space) It is desirable to be formed in the part.

In addition, the oil cooler 100 has a plurality of support parts 132 forming a plurality of channels in the body 130 to promote turbulence of oil flowing therein in the longitudinal direction of the body 130. Is formed to be long, and the inner pin 133 is interposed between the support portion 132.

The oil cooler 100 illustrated in FIG. 6B is a cross-sectional view of a portion where the inner pin 133 is formed, and the inner pin 133 is supported in the vertical direction by the support part 132, and the concave portion ( An example in which the inner pin 133 is provided at both sides of the 131 is illustrated.

The inner pin 133 is formed according to the shape of the concave portion 131 and the form (up and down or horizontal direction) of the support portion 132, the oil cooler 100 built-in radiator tank 200 of the present invention The inner fin 133 may further widen the heat dissipation area of the oil.

3 to 6B have a shape in which the length of the main body 130 abuts on the length of the inside of the radiator tank 200, and the surface 211 on which the hollow part 210 of the radiator tank 200 is formed. And part of the surfaces 201 and 202 closing both sides in the longitudinal direction of the radiator tank 200 form an example in which a space in which oil flows together with the main body 130 is formed. There is an advantage that can secure this flowing space stably.

7 is another exploded perspective view of the oil cooler 100 built-in radiator tank 200 according to the present invention, the oil cooler 100 built-in radiator tank 200 of the present invention may be formed to have a variety of length, at this time On both sides of the main body 130 in the longitudinal direction, the oil and the coolant are not mixed.

Figure 8 is a block diagram according to the manufacturing method of the oil cooler 100 built-in radiator tank 200 of the present invention, the manufacturing method of the oil cooler 100 built-in radiator tank 200 of the present invention has a form in which one side is open. And a pair of hollow portions 210 formed at a predetermined distance apart from the bottom surface 211 opposite to the open surface to be hollow, and an oil cooler 100 having a built-in oil cooler 100 therein. In the manufacturing method of (200), the manufacturing method of the oil cooler 100 built-in radiator tank 200 includes a) fixing the inlet pipe (110) and the outlet pipe (120) (Sa); b) assembling the main body 130 (Sb); And a brazing step Sc.

Fixing the inlet pipe (110) and the outlet pipe (120) (Sa) is the inlet pipe 110 and the outlet pipe 120 to the hollow portion 210 formed to be spaced apart a predetermined distance on one surface of the radiator tank 200, respectively It is the step of fixing.

As described above, the inlet pipe 110 and the outlet pipe 120 are fixed, and a bead 111 is formed on the outer surface of the radiator tank 200 to adjust the insertion depth, and the pipes 110 and 120 from the inside. Can be secured by expanding the end of

The main body 130, the assembling step (Sb) is a main body for forming a predetermined space in which one side surface is opened so that the cross section has a "C" shape, the surface 211 and the oil flows formed with the hollow portion 210 ( Temporarily fixing 130 to the inside of the radiator tank 200, wherein the main body 130 is fixed by pressing the protruding side surfaces (130a, 130b) to be in close contact with both sides of the radiator tank. It is preferred that no means is required.

The brazing step Sc manufactures the radiator tank 200 having the oil cooler 100 built by brazing the radiator tank 200 in which the inlet pipe 110, the outlet pipe 120, and the main body 130 are assembled. It's a step to complete.

The oil cooler 100 built-in radiator tank 200 of the present invention expands the ends of the pipes 110 and 120 without any other fixing means or by forcibly fixing the main body 130 to simplify the configuration while the main body 130 by brazing. The possibility of leakage of oil flowing inside can be minimized.

9 is a step for explaining the manufacturing of the radiator 1000 according to the present invention, when explaining the manufacturing of the radiator 1000 including the radiator tank 200 built-in oil cooler 100 of the present invention, Figure 9 (a As shown in FIG. 9, the inlet pipe 110 and the outlet pipe 120 are inserted by the hollow portion 210 of the radiator tank 200, and the ends thereof are extended and fixed. After the main body 130 is fixed by being fixed as shown in FIG. 9C, the other side tank 300 and the core part 400 (tube 410, pin 420, and header 430) and an inlet The pipe 500 and the outlet pipe 600 may be assembled and brazed to complete the radiator 1000 as shown in FIG. 9 (d).

That is, the method of manufacturing the oil cooler 100 built-in radiator tank 200 of the present invention may integrally form the oil cooler 100 at a time by using an essential brazing process in the manufacturing process of the radiator 1000, and productivity There is an advantage to increase.

Radiator tank 200 of the present invention can not only delete a plurality of components required for assembling the conventional oil cooler 100, but also simplify the manufacturing process to improve productivity, so that the oil and the coolant can be easily exchanged heat There is an advantage.

The present invention is not limited to the above-described embodiments, and the scope of application is not limited, and various modifications can be made without departing from the gist of the present invention as claimed in the claims.

1A is a cross-sectional view of a conventional double tube oil cooler.

Figure 1b is an exploded perspective view of the double tube oil cooler shown in Figure 1a.

Figure 2 is a perspective view of a conventional laminated oil cooler.

Figure 3 is a perspective view of the oil cooler built-in radiator tank according to the present invention.

Figure 4 is an exploded perspective view of the oil cooler built-in radiator tank shown in FIG.

5 is a cross-sectional view taken along line AA ′ of the oil cooler built-in radiator tank shown in FIG. 3.

FIG. 6A is a sectional view taken along line BB ′ of the oil cooler built-in radiator tank shown in FIG. 3; FIG.

6B is a cross-sectional view taken along line CC ′ of the oil cooler built-in radiator tank illustrated in FIG. 3.

Figure 7 is an exploded perspective view of another oil cooler built-in radiator tank according to the present invention.

Figure 8 is a block diagram according to the manufacturing method of the oil cooler built-in radiator tank of the present invention.

9 is a step illustrating the manufacture of a radiator according to the present invention.

** Description of the symbols for the main parts of the drawings **

100: oil cooler

110: inlet pipe 120: outlet pipe

111: Bead

130: main body 131: recess

132: support 133: inner pin

200: Radiator Tank with Oil Cooler

210: hollow part

300: Radiator Tank

400: core 410: tube

420: pin 430: header

500: inlet pipe

600: outlet pipe

1000: Radiator

Sa ~ Sc: each step according to manufacturing method of radiator tank with oil cooler

Claims (7)

One side has an open shape, a pair of hollow portion 210 is formed in a hollow spaced apart a predetermined distance on the lower surface 211 facing the open surface, the oil cooler 100 is built in the oil In the cooler 100 built-in radiator tank 200, The oil cooler 100 built-in radiator tank 200 A main body 130 having one side open to have a cross-section having a “c” shape, and having a surface 211 on which the hollow part 210 is formed and a predetermined space through which oil flows; And An inlet pipe 110 and an outlet pipe 120 coupled to the hollow portion 210, respectively; Oil cooler built-in radiator tank, characterized in that formed, including. The method of claim 1, The oil cooler 100 built-in radiator tank 200 The inlet pipe (110), outlet pipe (120), and the oil cooler built-in radiator tank, characterized in that the body is formed of aluminum. The method of claim 2, The oil cooler (100) built-in radiator tank (200) is an oil cooler built-in radiator tank, characterized in that the protruding both sides (130a, 130b) of the main body 130 is brazed after being fitted. The method of claim 2, The inlet pipe 110 and the outlet pipe 120 is formed with a bead 111 protruding outward to determine a position that is in close contact with the outer surface 211 of the radiator tank 200, the body 130 is the Radiator tank built-in radiator tank, characterized in that the end is expanded and fixed before being coupled to the radiator tank (200). The method of claim 2, The main body 130 is an oil cooler built-in radiator tank, characterized in that the concave portion 131 having a predetermined depth in the longitudinal direction in the longitudinal direction is formed on the lower surface to increase the area in which the oil flowing through the heat exchange with the coolant. The method according to any one of claims 1 to 5, The main body 130 has a plurality of support portions 132 forming a plurality of channels therein is formed long in the longitudinal direction of the main body 130, the inner pin 133 is interposed between the support portions 132 Radiator tank with built-in oil cooler. One side has an open shape, a pair of hollow portion 210 is formed in a hollow spaced apart a predetermined distance on the lower surface 211 facing the open surface, the oil cooler 100 is built in the oil In the manufacturing method of the cooler 100 built-in radiator tank 200, The manufacturing method of the oil cooler 100 built-in radiator tank 200 a) fixing the inlet pipe (110) and the outlet pipe (120) to the radiator tank (200) hollow portion (Sa); b) a main body having one side open to have a cross-sectional shape in the radiator tank 200 so as to have a "c" shape, and forming a predetermined space in which a surface of the hollow portion 210 is formed and the oil flows ( Assembling 130 (Sb); And c) brazing (Sc); Oil cooler built-in radiator tank manufacturing method characterized in that it comprises a.

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