KR101436957B1 - Radiator tank with built-in oil cooler - Google Patents

Abstract

The present invention relates to an oil cooler built-in radiator tank, and more particularly, to an oil cooler built-in radiator tank in which an oil cooler production cost is reduced by using an inexpensive aluminum material and a fixing means is coupled to the oil cooler and the radiator tank, Lt; / RTI >

The radiator tank with built-in oil cooler according to the present invention has a pair of hollow portions 210 which are open at one side and are spaced apart from each other by a predetermined distance and are formed into a double pipe shape, A main body through which oil flows; And an inner seating part which is fixedly attached to the inner surface of the radiator tank and which has a predetermined area of the peripheral surface protruding outwardly is formed on the inner surface of the outer surface of the radiator tank, An inlet / outlet boss portion formed at an end; An inlet pipe and an outlet pipe connected to the inlet and outlet bosses to allow oil to flow in or out, respectively; Wherein the hollow portion is formed with a projection protruding in a direction perpendicular to a surface of the hollow portion where the hollow portion is formed and having a second engaging portion formed on an outer circumferential surface of the radiator tank, The fixing means for fixing the oil cooler to the radiator tank includes a first fixing portion and a second fixing portion corresponding to the first engaging portion of the inlet / outlet boss portion and the second engaging portion of the protrusion on the inner periphery, and the oil cooler and the radiator And the tank is fixed at the same time.

Accordingly, in the radiator tank with the oil cooler according to the present invention, the hollow portion of the radiator tank is formed with a protrusion, and a second coupling portion is formed on the outer circumference of the radiator tank so that the fixing means is fastened to the first coupling portion and the second coupling portion of the oil cooler. The air tightness is securely maintained by increasing the fastening force, the fixing means is formed of synthetic resin, and the oil cooler is made of aluminum material, so that galvanic corrosion due to the potential difference does not occur and the production cost can be remarkably reduced.

Radiator, oil cooler, boss part

Description

{Radiator Tank With Oil Cooler}

The present invention relates to an oil cooler built-in radiator tank, and more particularly, to an oil cooler built-in radiator tank in which an oil cooler production cost is reduced by using an inexpensive aluminum material and a fixing means is coupled to the oil cooler and the radiator tank, Lt; / RTI >

The radiator is configured to prevent the temperature of the engine from rising to a predetermined temperature or more. The radiator circulates the high-temperature cooling water circulating in the engine while absorbing the heat generated by the combustion, passes through the radiator, It is a heat exchanger that dissipates heat to prevent engine overheating and maintain optimal operating conditions.

On the other hand, an oil cooler is provided in an automatic transmission to cool engine oil in a torque converter or a power transmission system. Since the temperature of the automatic transmission oil communicating with the interior of the oil cooler is higher than the temperature of the radiator, heat exchange is performed using the engine cooling water of the radiator and cooled.

The oil cooler can be roughly divided into a built-in oil cooler and an external oil cooler, which are provided inside the radiator tank. The present invention relates to a built-in oil cooler, and a conventional built-in oil cooler is shown in FIGS.

As shown in FIG. 1, the oil cooler is installed in one side of the radiator.

The conventional built-in oil cooler 80 includes an oil cooler 80 fixedly installed inside a radiator tank 90 formed with a pair of hollow hollow portions 91 spaced apart from each other by a predetermined distance, A main body 10 having an inner fin 11 interposed therebetween and through which oil flows; A tube 21 is formed on an outer surface of the outer surface of the body 10 and protrudes outside the radiator tank 90 through the radiator tank 90. A thread 21 is formed on the outer surface of the protruded tube, (20) having an inner seating part (22) formed with a circumferential surface protruding so as to be in close contact with an inner surface of the boss part (90); A 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; A fixing means (31) coupled to the thread (21) of the inlet / outlet boss portion (20) to fix the main body (10); An inlet pipe (40) and an outlet pipe (50) which are connected by an end of the inlet / outlet boss unit (20) and the connecting means (32) And a washer (70) provided between the fixing means (31) and the radiator tank (90) to maintain airtightness. And is formed to include a plurality of protrusions.

In the conventional oil cooler as described above, the oil flows between the double pipes, and the cooling water of the radiator flows to the inside and the outside of the oil pipes, and the heat exchanges with each other.

However, in the conventional oil cooler, since the nut is fixed to the radiator tank by being coupled with the inlet / outlet boss portion, the nut rotates with time as it takes time to weaken the fastening force. Therefore, In order to prevent this, there is a problem that an excessive tightening torque of the fixing means tends to damage the fastening portion and the air tightness is not secured.

In addition, when the main body, the inlet pipe and the outlet pipe are made of aluminum and the fixing means and the fastening means are steel products, galvanic corrosion may be caused by the movement of electrons by the potential difference, And the outlet pipe are generally formed of brass material. However, there is a problem that production efficiency is lowered due to an increase in the material cost of the brass.

Accordingly, the present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide an oil cooler and a radiator tank which are made of a synthetic resin, A radiator tank with built-in oil cooler which can be formed of an aluminum material and can reduce the material cost and the number of parts can be formed.

The radiator tank with built-in oil cooler according to the present invention has a pair of hollow portions which are open at one side and are spaced apart from each other by a predetermined distance. The radiator tank is formed as a double pipe, A distributed main body; And an inner seating part which is fixedly attached to the inner surface of the radiator tank and which has a predetermined area of the peripheral surface protruding outwardly is formed on the inner surface of the outer surface of the radiator tank, An inlet / outlet boss portion formed at an end; An inlet pipe and an outlet pipe connected to the inlet and outlet bosses to allow oil to flow in or out, respectively; Wherein the hollow portion is formed with a projection protruding in a direction perpendicular to a surface of the hollow portion where the hollow portion is formed and having a second engaging portion formed on an outer circumferential surface of the radiator tank, The fixing means for fixing the oil cooler to the radiator tank includes a first fixing portion and a second fixing portion corresponding to the first engaging portion of the inlet / outlet boss portion and the second engaging portion of the protrusion on the inner periphery, and the oil cooler and the radiator And the tank is fixed at the same time.

The fixing means is formed such that the radius of the first fixing portion coupled with the first coupling portion of the input / output boss portion is smaller than the radius of the second fixing portion coupled with the second coupling portion of the projection.

The fixing means may be formed of a synthetic resin, and the main body, the inlet and outlet bosses, the inlet pipe, and the outlet pipe of the oil cooler may be formed of aluminum.

In addition, the radiator tank with built-in oil cooler is provided with a sealing groove having a predetermined depth in the inner seat so that the airtightness between the inlet and outlet bosses and the inner wall of the radiator tank can be maintained, .

In addition, the inlet / outlet boss portion is formed with a stepped portion formed by removing a predetermined region below the first engaging portion which is in contact with the inner peripheral edge of the hollow portion, and the second sealing means is provided in the stepped portion.

Accordingly, in the radiator tank with the oil cooler according to the present invention, the hollow portion of the radiator tank is formed with a protrusion, and a second coupling portion is formed on the outer circumference of the radiator tank so that the fixing means is fastened to the first coupling portion and the second coupling portion of the oil cooler. The air tightness is securely maintained by increasing the fastening force, the fixing means is formed of synthetic resin, and the oil cooler is made of aluminum material, so that galvanic corrosion due to the potential difference does not occur and the production cost can be remarkably reduced.

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

FIG. 4 is a perspective view of a radiator tank 200 with an oil cooler according to the present invention, FIG. 5 is an exploded perspective view of a radiator tank 200 with an oil cooler according to the present invention, Sectional view of the tank 200.

4 to 6, the radiator tank 200 having an oil cooler according to the present invention has one side open, and the open side includes a core, which includes a header, a tube, and a fin, So that the cooling water flow path is formed.

In addition, the radiator tank 200 having the oil cooler is formed with a pair of hollow portions 210, which are opened at a predetermined distance on one surface so that the oil cooler 100 is installed therein and are fixed to one side, A protrusion 211 protruding in a direction perpendicular to the surface on which the hollow portion 210 is formed is formed around the protrusion 211 and a second coupling portion 212 is formed on the outer circumference of the protrusion 211.

4 to 6 show an example in which the hollow portion 210 is formed on a lower surface of the radiator tank 200. However, the radiator tank 200 of the oil cooler 100, ), The shape of the outlet pipe 140, the manufacturing conditions, and the like.

The oil cooler 100 is installed inside the oil cooler built-in radiator tank 200 and includes a main body 110 through which oil flows, a main body 110 spaced a predetermined distance from the outer surface of the main body 110, An inner seating part 122 formed to protrude outward from a certain region of the circumferential surface and to be tightly fixed to the inner surface of the radiator tank 200 is formed and a first coupling part 121 is formed on the outer circumferential surface An input / output boss unit 120; An inlet pipe (130) and an outlet pipe (140) connected to the inlet / outlet boss unit (120) and through which oil is introduced or discharged, respectively; .

The oil cooler 100 is fixed to the radiator tank 200 by the fixing means 220 and the fixing means 220 and the oil cooler 100 The fixing means 220 may be installed on the first coupling portion 121 of the inlet and outlet boss portion 120 and the second coupling portion 121 of the protrusion 211 212 are fixed at the same time.

The radiator tank 200 with the oil cooler shown in FIGS. 4 to 6 has a U-shaped cross-section, and the radiator tank 200 has a U- And an intermediate connecting member is further formed on the outer side.

7 is a perspective view of the fixing means 220 according to the present invention in which the first fixing portion 221 and the second fixing portion 222 are fixed to the first coupling portion 121 and the second coupling portion 212, The second fixing portion 222 of the fixing means 220 is formed to correspond to the fixed portion 222 of the fixing portion 220 and the second fixing portion 222 of the fixing portion 220 is formed to correspond to the fixing portion 220, Region is formed in a stepped shape.

In other words, the fixing means 220 may be configured such that the radius of the first fixing portion 221 coupled with the first coupling portion 121 of the input / output boss portion 120 is larger than the radius of the second coupling portion 212 of the protrusion 211 The second fixing part 222 is formed to have a radius smaller than that of the second fixing part 222.

The fixing unit 220 is rotated in a specific direction to rotate the first fixing unit 221 and the first fixing unit 121 and the second fixing unit 222 and the second fixing unit 212 in a single process, The oil cooler 100 can be fixed to the radiator tank 200 by a simple method of fastening the oil cooler 100 to the radiator tank 200.

In the radiator tank 200 having the oil cooler of the present invention, the fixing means 220 simultaneously fixes the inlet / outlet boss portion 120 of the oil cooler 100 and the protruding portion 211 of the radiator tank 200, The inlet pipe boss 120, the inlet pipe 130, and the outlet pipe 140, which form the oil cooler 100, as well as the fixing means 220 are formed of synthetic resin. Is formed of an aluminum material, which has the advantage of lowering the production cost.

In other words, the radiator tank 200 having the oil cooler according to the present invention is configured such that when the conventional fixing means 220 is made of steel and the oil cooler 100 is made of aluminum, The galvanic corrosion of the oil cooler 100 due to the electric potential difference on the contact surface of the oil cooler 100 can solve the problem that the oil cooler 100 is made of a brass material and the material cost is inevitably increased.

Further, in the radiator tank 200 with the oil cooler of the present invention, the sealing means 151 and 152 may be used to further enhance airtightness. For example, the inner seating portion 122 may have a sealing groove A first sealing means 151 may be provided on the sealing groove 123 and a predetermined area below the first engaging portion 121 of the inlet and outlet boss portion 120 may be removed, A stepped portion 124 may be formed and a second sealing means 152 may be provided on the stepped portion 124.

The first oil sealer 151 and the second oil sealer 152 are provided in the oil cooler 100 so that the oil flowing in the oil cooler 100 and the radiator It is possible to prevent the problem that the cooling water flowing inside the tank 200 is mixed.

The inlet pipe 130 or the outlet pipe 140 of the oil cooler 100 is connected to the body 110 and the inlet and outlet bosses 120 When the length of the inlet pipe 130 or the outlet pipe 140 is long or the shape is difficult to pass through the hollow portion 210, The body 110 and the inlet and outlet bosses 120 are fixed to the radiator tank 200 using the fixing means 220 as shown in FIG. And can be fastened using separate fastening means 230.

FIG. 9 is a plan view of a radiator according to the present invention. The radiator tank 200 with an oil cooler according to the present invention is assembled to one side of a core part formed by brazing a tube, a fin, and a header, and a general radiator tank 200 And the radiator is connected to the other side of the core to circulate cooling water.

4, 5, 6, and 8 illustrate that the oil cooler 100 provided inside the radiator tank 200 with the oil cooler of the present invention is formed in a double pipe shape, and the inner pipe 111 is interposed between the double pipes. The present invention is not limited to this. The stacked oil cooler 100 having the main body 110 formed by stacking tubes and fins in addition to the double pipe-type oil cooler 100 ) May be applied.

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.

1 is a perspective view of a conventional oil cooler;

Fig. 2 is an exploded perspective view of the oil cooler shown in Fig. 1; Fig.

Fig. 3 is a sectional view of the oil cooler shown in Fig. 1; Fig.

4 is a perspective view of a radiator tank with an oil cooler according to the present invention.

5 is an exploded perspective view of a radiator tank with an oil cooler according to the present invention.

6 is a sectional view of a radiator tank with an oil cooler according to the present invention.

7 is a perspective view of a securing means according to the present invention;

8 is another cross-sectional view of a radiator tank with an oil cooler according to the present invention.

9 is a plan view of a radiator according to the present invention.

DESCRIPTION OF REFERENCE NUMERALS

100: Oil cooler

110: main body 111: inner pin

120: input / output boss portion 121: first coupling portion

122: inner seating portion 123: sealing groove

124:

130: inlet pipe 140: outlet pipe

151: first sealing means 152: second sealing means

200: Oil cooler built-in radiator tank

210: hollow part 211:

212:

220: fixing means

221: first fixing portion 222: second fixing portion

230: fastening means

Claims (6)

A pair of hollow portions 210 having one side open and spaced apart from the other side by a predetermined distance are formed, A main body 110 through which oil flows; The inner surface of the radiator tank 200 is fixed to the inner surface of the radiator tank 200. The inner surface of the radiator tank 200 is fixed to the inner surface of the radiator tank 200 by a predetermined distance from the outer surface of the main body 110, An input / output boss portion 120 formed with a first coupling portion 121 on an outer circumferential surface thereof; A radiator tank 200 including an oil cooler 100 including an inlet pipe 130 and an outlet pipe 140 connected to the inlet and outlet bosses 120 to receive and discharge oil, As a result, The oil cooler built-in radiator tank (200) A protrusion 211 protruding from the periphery of the hollow portion 210 in a direction perpendicular to the surface on which the hollow portion 210 is formed and having a second engaging portion 212 formed on the outer circumferential surface thereof, The fixing means 220 for fixing the oil cooler 100 to the radiator tank 200 includes a first engaging portion 121 of the inlet / outlet boss portion 120 and a second engaging portion 121 of the protrusion 211, The first fixing part 221 and the second fixing part 222 corresponding to the first fixing part 212 of the oil cooler 100 are formed and the first engaging part 121 of the inlet and outlet boss part 120 of the oil cooler 100, Is coupled to the second coupling portion (212) of the protrusion (211) of the oil cooler (200) simultaneously. The method according to claim 1, The fixing means 220 may be configured such that the radius of the first fixing portion 221 coupled with the first coupling portion 121 of the input / output boss portion 120 is larger than the radius of the second coupling portion 212 of the protrusion 211 Is formed to be smaller than the radius of the second fixing portion (222). 3. The method of claim 2, Wherein the fixing means (220) is formed of a synthetic resin. The method of claim 3, Wherein the body 110, the inlet boss 120, the inlet pipe 130, and the outlet pipe 140 of the oil cooler 100 are made of aluminum. The method according to claim 1, The radiator tank 200 having the oil cooler has a sealing groove 123 having a predetermined depth in the inner seating portion 122 so that the airtightness between the inlet and outlet bosses 120 and the inner wall of the radiator tank 200 can be maintained , And a first sealing means (151) is provided in the sealing groove (123). 6. The method of claim 5, The input / output boss unit 120 is formed with a stepped portion 124 formed by removing a certain region below the first engaging portion 121 which is in contact with the inner periphery of the hollow portion 210, and the stepped portion 124 And a second sealing means (152) is provided on the second radiator tank.

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