KR20060026551A - Oil cooler for car - Google Patents

Abstract

The parts exposed to the outside are made of a material having excellent corrosion resistance, and the parts to be cooled are made of a material having excellent thermal conductivity, so that oil flow paths are formed therein to prevent corrosion and improve cooling efficiency. The inlet and the outlet are formed to be inserted into the inside of the radiator, and the ends of the protruding and protruding protruding and protruding from the corners of the inlet and outlet of the main body, respectively, and a pair of connectors formed integrally extending and The coupling member is inserted into the connector and is fixed and supported by bending the fixed connector inwardly and partially exposed to the outside of the radiator. Inlet and outlet pipes assembled to the packing and coupling member, respectively Provided is an automotive oil cooler comprising a pump.

The body and connector are made of metal such as aluminum, which is relatively light, has good strength and corrosion resistance, is easy to process, and has excellent thermal conductivity, and the joining member has good strength and corrosion resistance, such as copper, brass, stainless steel, etc. Made using the material.

Automotive, oil, cooling, oil cooler, radiator, water-cooled, corrosion, inlet, outlet

Description

Oil Cooler for Cars {Oil Cooler for Car}

1 is a partially exploded perspective view showing an embodiment of an automotive oil cooler according to the present invention.

Figure 2 is a partially omitted cross-sectional view showing an embodiment of an automotive oil cooler according to the present invention.

Figure 3 is a partially enlarged cross-sectional view showing an embodiment of an automotive oil cooler according to the present invention.

Figure 4 is a partially enlarged cross-sectional view showing a connector formed by bending the inlet and outlet corners in one embodiment of the automotive oil cooler according to the present invention.

Figure 5 is a cross-sectional view showing another embodiment of the oil cooler for a vehicle according to the present invention.

Figure 6 is a partially enlarged cross-sectional view showing a state of sealing using a cap in another embodiment of an automotive oil cooler according to the present invention.

The present invention relates to an automotive oil cooler, and more particularly, an automotive oil configured to prevent corrosion caused by residual salt after salt spray test by being made of a material having excellent corrosion resistance. It's about the cooler.

In general, an oil cooler is a device used for cooling transmission oil in a vehicle, and is composed of a small heat exchanger, and is classified into an air cooling type for cooling in air and a water cooling type installed in a radiator for cooling.

In the above water-cooled oil cooler is inserted into the radiator tank is installed, it is formed of a double pipe is formed in the inside and the outside of the radiator cooling water, or formed of a plurality of plate-shaped pads in the hollow state, the outside is in contact with the radiator cooling water to perform heat exchange to the transmission oil Cooling takes place.

The conventional oil cooler has a flow path through which the oil moves inside and is formed at an inlet and an outlet at predetermined intervals, and is inserted into the radiator, an inlet pipe installed at the inlet of the main body, and an outlet of the main body. It consists of an outlet pipe installed.

In the above, between the inlet and the inlet pipe and the outlet and the outlet pipe, female threads are formed on the inner circumferential surface and male connectors are formed on the outer circumferential surface, respectively.

The connector is welded and fixed by brazing with one end inserted into the inlet and the outlet, and the other end is exposed to the outside of the radiator, and the nut is coupled to the part exposed to the outside of the radiator.

The conventional oil cooler is made of metal such as copper or aluminum having high thermal conductivity, and can be used only after passing various tests performed in a state of being connected to a radiator.

Among the tests performed on the oil cooler, there is a salt spray test, and after the salt spray test is performed, washing is performed.

By the way, even if the conventional oil cooler is washed after the salt spray test, there is a problem that salinity remains in the portion exposed to the outside of the radiator.

That is, the conventional oil cooler is fastened to the radiator by forming a male screw on the outer circumferential surface of the connector exposed to the outside of the radiator, and by assembling a nut to the male screw. easy.

As the salt remains as described above, in the case of the oil cooler manufactured by using aluminum, etc., corrosion proceeds over time, so that the strength gradually decreases, and in a severe case, cracks occur.

As a result, the service life may be shortened or the failure rate may increase.

An object of the present invention is to solve the above problems, since the portion exposed to the outside of the radiator using a material having excellent corrosion resistance and the cooling part of the oil is made of a material having excellent thermal conductivity, salt spray test It is to provide an automotive oil cooler to improve the cooling efficiency while preventing corrosion or cracking due to residual salts and the like.

The oil cooler for automobile proposed by the present invention has a flow path through which oil moves, an inlet and an outlet are formed at predetermined intervals, and are inserted into the radiator, respectively, from the corners of the inlet and the outlet of the body. A protruding end protruding outwardly protrudes and a pair of connectors formed by integrally extending the fixed connection portion, and fixedly supported by being inserted into the connector and bending the fixed connection portion inward to the outside of the radiator. The main body and the inside of the coupling member are partially exposed and made of a material having better corrosion resistance than the main body, a packing provided between the connector and the coupling member, and assembled to the coupling member from the outside of the radiator. Including inlet and outlet pipes communicating with each other The.

The main body and the connector are made of a metal material such as aluminum or aluminum alloy, which is relatively light, has good strength and corrosion resistance, is easy to process, and has excellent thermal conductivity.

The coupling member is made of a metal material such as copper, brass, copper alloy, stainless steel having good strength and excellent corrosion resistance.

The coupling member is connected to the inlet pipe and the outlet pipe and the inside of the main body to communicate with each other, the first coupling portion of which one end is exposed to the outside of the radiator, and integrally formed on the other end of the first coupling portion And a second coupling part inserted into the connector and fixedly supported by the fixed connection part, and a flange part installed between the second coupling part and the radiator and integrally formed with the first coupling part.

Next, a preferred embodiment of an oil cooler for a vehicle according to the present invention made as described above will be described in detail with reference to the accompanying drawings.

First, an embodiment of the oil cooler for an automobile according to the present invention, as shown in FIGS. 1 to 3, an oil passage is formed therein, and an inlet 12 and an outlet 14 are formed at predetermined intervals. And a main body 10 inserted into the radiator 2 and end portions extending from the edges of the inlet 12 and the outlet 14 of the main body 10 to protrude and protrude outwards, respectively. ) Is a pair of connectors (20) formed integrally extending, and inserted into the connector (20) and fixed and supported by bending the fixed connector 28 inward and outward of the radiator (2) Part of the coupling member 30 is made of a material having a higher corrosion resistance than the main body 10, the packing 40 is provided between the connector 20 and the coupling member 30, respectively, and the radiator (2) the coupling member from the outside The inlet pipe 50 and the outlet pipe 60 which communicate with the main body 10 and the inside by being assembled to 30 are included.

As shown in FIGS. 1 to 3, the main body 10 has a plurality of hollow plate-shaped tubes 11 arranged in parallel at predetermined intervals and connected to each other so that the adjacent tubes 11 communicate with each other. The tube 11 on one side may be formed by the inlet 12 and the outlet 14 are formed.

The main body 10 is made of metal, such as aluminum or aluminum alloy, which is relatively light, has good strength and corrosion resistance, is easy to process, and has excellent thermal conductivity.

When the main body 10 is configured using aluminum or an aluminum alloy as described above, weight reduction and cost reduction can be achieved as compared with using copper or a copper alloy.

The main body 10 can be implemented by the same configuration as the oil cooler main body generally used widely.

The main body 10 can be installed in close contact with the cooling fins 8 in order to increase the cooling efficiency.

The cooling fins 8 are installed between the neighboring tubes 11 and / or inside the tubes 11. The cooling fins 8 are formed of the same material as the main body 10 to be welded and fixed to the main body 10 by brazing.

In the above, the cooling fins 8 may be formed in the same configuration as the cooling fins of oil coolers which are generally widely used.

As shown in FIGS. 1 to 3, the connector 20 is integrally formed from the insertion part 22 and the insertion part 22 which are inserted into the inlet 12 and the outlet 14 of the main body 10. An extension part 24 formed to extend and bend outward at a predetermined angle and brazed to be welded to the main body 10 together with the insertion part 22, and an insertion part 22 of the extension part 24. ) Is formed integrally extending at the opposite end portion and extends in one piece to an end opposite to the extension portion 24 of the extension portion 26 and bent in the opposite direction of the main body 10. It is possible to include the connecting support 28 is formed.

In addition, as shown in FIG. 4, the connector 20 is bent to protrude outward from the corners of the inlet 12 and the outlet 14 of the main body 10 and expands the bent portion to expand the expansion portion 26. By forming the expansion tube 26 and the extension portion 24 is formed between the edge of the inlet 12 and the outlet 14 of the main body 10 and the expansion portion 26 of the It is possible to include the connection support 28 is formed at the opposite end of the extension portion 24.

The extension part 24 is bent so that it may overlap with the main body 10, and the expansion part 26 is bend | folded substantially vertically.

The connection support 28 can maintain the assembled state of the coupling member 30 by caulking using a press or a dedicated equipment.

In one embodiment of the automotive oil cooler according to the present invention made as described above, the connector 20 is made of the same material as the main body 10.

As shown in FIGS. 1 to 3, the coupling member 30 connects the inlet pipe 50 and the outlet pipe 60 and the interior (euro) of the main body 10 to each other, and one end portion thereof is connected to each other. The first coupling part 32 exposed to the outside of the radiator 2 and the other end of the first coupling part 32 are integrally formed and inserted into the connector 20 to connect the connection support part 28. The second coupling portion 36 fixedly supported through the flange portion 38 is provided between the second coupling portion 36 and the radiator 2 and integrally formed in the first coupling portion 32 It is made, including.

The coupling member 30 is made of a material having good strength and excellent corrosion resistance (for example, copper, brass, copper alloy, stainless steel, etc.).

When the coupling member 30 is made as described above, corrosion does not occur even in the case of remaining salt generated after the salt spray test and washing.

The packing 40 is installed between the connector 20 and the second coupling part 36.

In the above, the packing 40 can be made by carrying out the same structure as the packing generally used widely, such as ring-shaped rubber packing.

In one embodiment of the automotive oil cooler according to the present invention made as described above as shown in Figures 1 to 6, the coupling member 30 and the inlet pipe 50 and the coupling member 30 and the outlet pipe 60 is coupled via a threaded portion.

The threaded portion 33 is formed on the inlet pipe 50 and the outlet pipe 60 to be coupled to the female screw portion 33 formed on the first coupling portion 32 and the female screw portion 33, respectively. ), (63).

Automobile oil cooler according to an embodiment of the present invention made as described above can be fastened to the radiator 2 and fixed to one end of the first coupling portion 32 (the side exposed to the outside of the radiator) A screw portion 34 is formed and a nut 4 is assembled to the male screw portion 34 from the outside of the radiator 2.

In the above, it is possible to install a packing 39 between the flange portion 38 and the radiator 2 of the coupling member 30.

In another embodiment of the oil cooler for automobiles according to the present invention, as shown in FIG. 5, the main body 10 surrounds a cylindrical inner tube 15 and an outer circumferential surface of the inner tube 15 at predetermined intervals. An inlet 12 and an outlet 14 are formed and both ends may comprise an exterior 16 which is connected and sealed to both ends of the inner tube 15.

The space (or flow path) between both ends of the inner tube 15 and the outer tube 16 extends both ends of the inner tube 15 to form an expansion tube 17. Sealing is performed by brazing in a state of being in close contact with the inner surface.

As shown in FIG. 6, the space (or flow path) between both ends of the inner tube 15 and the outer tube 16 is inserted into a ring-shaped cap 18 at both ends and brazed. It is also possible to seal by.

Although not shown in the drawings, a space (or flow path) between both ends of the inner tube 15 and the outer tube 16 expands both ends of the inner tube 15 to form an expansion tube 17. Both ends of (15) can be reduced and sealed by brazing in a state where both ends are brought into close contact with each other.

In the above-described other embodiments, since the present invention may be configured in the same manner as the above-described embodiment except for the above-described configuration, detailed description thereof will be omitted.

In the above description of the preferred embodiment of the oil cooler for automobiles according to the present invention, the present invention is not limited to this, but it is not limited to the claims and the detailed description of the invention, it is to be modified in various ways within the scope of the accompanying drawings It is possible and this also falls within the scope of the present invention.

According to the oil cooler for automobiles according to the present invention made as described above, since the part exposed to the outside of the radiator is made of a material having excellent corrosion resistance, the salt spray test is performed and the corrosion does not occur even after the salt is left after washing is performed.

Therefore, the degradation of strength or cracking does not occur, so the life is extended and the failure rate is reduced.

According to the oil cooler for automobiles according to the present invention made as described above, it is possible to manufacture the body in which the oil is cooled is relatively light, such as aluminum, using a metal material having good strength and corrosion resistance, easy processing, and excellent thermal conductivity. Therefore, the cooling efficiency is improved, the selection range of the material forming the main body is expanded, and the main body can be formed in various structures.

According to the oil cooler for automobiles according to the present invention made as described above, since the structure of assembling the coupling member to the connector simply through the caulking, it is possible to reduce the cost due to improved workability.

Claims (7)

A main body formed with a flow path through which oil moves and an inlet and an outlet formed at predetermined intervals and inserted into the radiator, A pair of connectors formed by extending the fixed connection unit integrally at the ends protruding and protruding from the edges of the inlet and the outlet of the main body, respectively; A coupling member inserted into the connector and fixed and supported by bending the fixed connection part inwardly and partially exposed to the outside of the radiator and using a material having better corrosion resistance than the main body; Packings respectively installed between the connector and the coupling member; And an inlet pipe and an outlet pipe communicating with the main body and the inside by being assembled to the coupling member at an outer side of the radiator. The method according to claim 1, The body and the connector is made of aluminum or aluminum alloy, which is relatively light and has good strength and corrosion resistance, The coupling member has a good strength and corrosion resistance is excellent automotive oil cooler used in the use of copper, brass, copper alloy, stainless steel. The method according to claim 1 or 2, The coupling member is connected to the inlet pipe and the outlet pipe and the inside of the main body to communicate with each other, the first coupling portion of which one end is exposed to the outside of the radiator, and integrally formed on the other end of the first coupling portion And a second coupling part inserted into the connector and fixed and supported by a fixed connection part, and a flange part installed between the second coupling part and the radiator and integrally formed with the first coupling part. Cooler. The method according to claim 3, The connector is an insertion portion inserted into the inlet and the outlet of the main body, an extension portion formed integrally extending from the insertion portion and bent outward at a predetermined angle and brazed to be welded to the main body together with the inserting portion. And an extension part integrally formed at an end opposite to the insertion part of the extension part and bent in the opposite direction of the main body, and the connection support part integrally extended to an end opposite to the extension part of the extension part. Automotive oil cooler comprising. The method according to claim 3, The connector is bent so that the inlet and outlet edges of the main body protrude outwardly and expand the bent portion to form an enlarged portion, thereby forming the enlarged portion, between the inlet and outlet edges of the main body. An oil cooler for an automobile comprising an extension part formed and the connection support part formed at an end opposite to the extension part of the expansion pipe part. The method according to claim 3, The main body is an automobile oil comprising a hollow plate-like tube disposed in plurality at a predetermined interval in parallel and adjacent tubes are connected to each other through the inside and the inlet and outlet are formed in one tube Cooler. The method according to claim 3, The main body has a cylindrical inner tube, and the outer circumferential surface of the inner tube wraps at a predetermined interval, the inlet and the outlet are formed respectively, both ends are connected to both ends of the inner tube and includes an exterior oil seal Cooler.

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