KR101020068B1 - Pin Form's Type Oil Cooler of Steering Wheel - Google Patents

Abstract

In addition to improving the cooling performance of the oil by widening the contact range with the air for heat exchange, the simplification of the manufacturing process can be linked from the circulation path of the oil inside the steering wheel of the vehicle to increase the productivity and reduce the production cost. An oil pipe to be installed and a cooling fin member configured to be wound on the outer surface of the oil pipe in a spiral manner so that heat exchange of the oil is possible, and the cooling fin member is in a spiral manner on the outer surface of the oil pipe when combined. Steering wheel fin form oil cooler device including a coupling flange provided to be wound, and a pin forming end which is integrally bent from the coupling flange and is provided with a plurality of cutting units to form a wide contact area with air during installation. to provide.

Power, steering wheel, oil, cooler, piping, fins, cooling, air cooling, heat exchange

Description

Pin Form's Type Oil Cooler of Steering Wheel}

The present invention relates to a steering wheel fin form oil cooler device, and more particularly, to increase the cooling performance of the oil by widening the contact range with air for heat exchange, as well as to increase the production cost by simplifying the manufacturing process. The present invention relates to a dropable steering wheel pin form oil cooler device.

Power steering wheel (Wheel) of the vehicle is made to reduce the power required to operate the wheel (Wheel) by the hydraulic pressure of the oil pump driven by the engine, it is possible to link the oil with increased pressure to the steering wheel (Wheel) By operating the piston into the cylinder is provided, it is configured to be easily manipulated the handle.

Since the power steering wheel device of the vehicle is operated by hydraulic pressure, when the oil temperature is 125 to 130 ° C. or more, the performance decreases, and since the oil film is not formed, the sliding part is sintered.

Accordingly, the power steering wheel (Wheel) device of the vehicle should be configured to maintain the oil temperature of about 70 ~ 80 ℃ above all.

Looking at the technical configuration of the conventional power steering wheel (Wheel) device, including the oil tank and suction hose, oil pump, pressure line, gear box and handle, the oil cooler is connected to the oil tank and gear box through the return line It consists of a closed path of.

Here, the oil coolers, which are each connected through a return line to cool the oil, are generally configured in a simple tube form, and are disposed behind the bumper beam of the vehicle by adopting a natural cooling method by air.

However, in recent years, as the necessity of the technology for improving the driving performance and noise of the vehicle is increased, the use of various blocking members for the noise prevention of the vehicle is increased, and the output per liter of fuel is increased while increasing the displacement to improve the performance of the vehicle. Due to the development of technology, the temperature inside the engine room of the vehicle is inevitably higher.

Therefore, when applying the oil cooler of the conventional power steering wheel (Wheel) device, that is, configured to be heat exchangeable from a simple tube itself, it does not solve the problem that it is difficult to maintain the temperature of the oil for smooth performance.

On the other hand, in the case of enabling the temperature control of the oil by linking a technical configuration such as a heat exchanger that is already applied to a vehicle, that is, a condenser or a radiator of an air conditioner to an oil cooler of a conventional power steering wheel device, the power steering is possible. Component characteristics between the wheel oil cooler and the air conditioner, for example, it is impossible to match the proper guaranteed pressure of the oil.

In addition, in the case of applying the above-described embodiment, that is, a condenser or a radiator of a vehicle air conditioner to an oil cooler of a power steering wheel device, the engine of the vehicle causes a failure due to a change in cooling characteristics, resulting in a complicated manufacturing process. Difficulties in the design and manufacturing process arise, such as the need to provide a separate installation space with the rise.

Looking at the technologies disclosed as a solution to these problems, you can find an oil cooler such as fin and tube type.

For example, the "cooler for power steering of an automobile" disclosed in Korean Patent Application Publication No. 370926 (registered on January 21, 2003, hereinafter referred to as "prior patent") is mentioned.

The prior patent is made of a predetermined tube and a pin in the form of a plate perforated with a hole corresponding to the diameter of the tube, a plurality of the plate-shaped pin at a predetermined interval on the appearance of the tube, using an expansion tube By expanding the inner diameter of the tube by a predetermined, it is configured to maintain a tight coupling between the tube and the pin.

In the case of the prior patent, the shape of the fin for heat exchange of the oil is simply made in the form of a plate, due to the technical configuration arranged in a line at a predetermined interval has a problem that the air flow that has a close effect on the heat exchange performance is not smooth have.

That is, since the fin of the prior patent is made in the form of a plate, only the flow of air according to the installation intervals between the fins can only affect the cooling of the oil, and the air permeability between the fins must be blocked. It has a limitation that the cooling efficiency is inevitably falling.

In addition, the prior patent has adopted a manufacturing method that can firmly install the coupling between the tube and the fin by expanding the inner diameter of the tube by a predetermined amount by using an expansion pipe, but the tube has a predetermined stretching ratio according to temperature Considering that it is an alloying material having a problem in that the installation state at the time of manufacture cannot be maintained.

Such a problem is that the power steering cooler of the vehicle according to the prior patent, even if it achieves the cost savings of the producer by simplifying the manufacturing process, is only to pass the maintenance cost to the user, and to solve all the problems to advance to commercialization It is not completely solved.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and an object of the present invention is to provide a steering wheel pin form oil cooler device capable of improving the cooling performance of oil by widening a contact range with air for heat exchange.

In addition, another object of the present invention is to provide a steering wheel fin form oil cooler device which can not only reduce the production cost while increasing productivity by simplifying the manufacturing process, but also satisfying performance and durability at the same time.

Steering wheel pin form oil cooler device proposed by the present invention is configured to enable the heat exchange of the oil by winding in a spiral manner on the oil pipe and the oil pipe is installed in association with the circulation path of the oil inside the steering wheel of the vehicle. Including a cooling fin member, the cooling fin member is coupled to the coupling flange provided to spirally wound on the outer surface of the oil pipe when the coupling, integrally bent from the coupling flange, a plurality of cutting units are provided It is made to include a pin forming end to form a wide contact area with air during installation.

The cutting units of the pin forming stage are formed of two groups each having a different cutting length, and the cutting lengths of the two groups are sequentially arranged alternately, and the cutting directions of two consecutive cutting units are formed to be opposite to each other. It is configured to increase the contact area while maintaining the flow smoothly.

The oil pipe and the cooling fin member are made of a material such as aluminum having high thermal conductivity. In addition, the oil pipe may be implemented in a form including a bracket for fixing the installation state.

According to the steering wheel fin form oil cooler device according to the present invention, the bent integrally bent from the coupling flange, is provided with a plurality of cutting units, and is provided with a pin forming end for widening the contact area with air during installation, In addition to widening the contact range between the cooling fin members, it is possible to increase the cooling performance of the oil by smoothing the air flow between the cutting units.

In addition, according to the steering wheel pin form oil cooler device according to the present invention, by adopting a spiral winding form of the coupling between the cooling fin member and the oil pipe for heat exchange of the oil to simplify the manufacturing process, while increasing the productivity In addition to reducing production costs, it is possible to ensure proper durability with performance.

Next, a technical configuration of a steering wheel pin form oil cooler device according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Steering wheel fin form oil cooler device proposed by the present invention is composed of an oil pipe 10 and a cooling fin member 20, as shown in Figures 1 to 6.

The oil pipe 10 is bent in an arbitrary shape of a pipe having a predetermined diameter, and is installed to be linked from the circulation path of the oil inside the steering wheel of the vehicle.

And, the cooling fin member 20 is formed integrally wound on the outer surface of the oil pipe 10 in a spiral manner. Coupling method of the cooling fin member 20 as described above not only simplifies the manufacturing process, but also firmly coupled with the oil pipe 10 to promote the production of finished products that can meet a predetermined durability.

In the case of the cooling fin member 20, since it is to cool the oil through heat exchange with air by transferring heat from the oil, it is preferable to apply a material having good thermal conductivity. For example, the same thing as aluminum and its alloy is mentioned.

In addition, the oil pipe 10 may also be configured to increase the cooling efficiency of the oil by applying a material such as aluminum, that is, a material capable of meeting a predetermined thermal conductivity, like the cooling fin member 20. .

The cooling fin member 20 of the present invention comprises a predetermined coupling flange 21, the pin forming end 22.

When the coupling flange 21 is wound in a spiral manner, the coupling flange 21 is configured in the form of a flange of a predetermined width to abut on the outer surface of the oil pipe 10.

In addition, the pin forming end 22 is formed integrally with the coupling flange 21 and bent to have an appropriate width. A plurality of cutting units 22a are provided.

Here, the cutting unit 22a has a technical feature of improving the cooling performance of the oil by widening the contact area with air when the pin forming end 22 is installed.

The cutting unit 22a of the pin forming end 22 may have various cutting lengths, but is preferably formed in at least two different groups, and the cutting lengths of the two groups are sequentially arranged alternately. do.

In particular, by forming the cutting directions of the two cutting units 22a which are continuous to each other, the spacing between the pin forming stage 22 of the adjacent spiral shape, as well as the smooth flow of air between the cutting units 22a The contact area between the pin forming end 22 and the air can be widened.

Such a pin forming stage 22 and a cutting unit 22a, that is, a pin forming stage 22 formed in a spiral shape, and a cutting unit 22a in which the cutting directions of two consecutively intersecting sections are opposite to each other are formed of oil. It corresponds to the main technical configuration of the present invention for improving the cooling performance.

Steering wheel pin form oil cooler device according to the present invention can be implemented in the form including a predetermined bracket 11, as shown in Figures 4 to 6. The bracket 11 is for fixing the installation state of the oil pipe 10, it can be implemented in a variety of forms, such as freely removable, or integrally coupled form on the outer surface of the oil pipe (10).

Next, a brief description of the manufacturing method of the steering wheel pin form oil cooler device according to the present invention.

First, the manufacturing method of the steering wheel pin form oil cooler device according to the present invention is composed of a predetermined cutting and bending step (S10), pin forming step (S20) and assembly configuration step (S30). .

The cutting and bending step S10 is a process of cutting and bending the oil pipe 10 or the cooling fin member 20 to each shape, using a predetermined shearing machine or a bending machine.

At this time, the cooling fin member 20 may be bent to the extent that the angles are perpendicular to each other in consideration of the width of the coupling flange 21 and the pin forming end 22.

The pin forming step S20 may be referred to as a process for forming a predetermined cutting unit 22a in the pin forming end 22 of the cooling fin member 20. That is, the pin forming end 22 is cut to a predetermined length, but the cutting length is formed into two different groups, and the cutting lengths of the two groups are formed so as to be sequentially arranged alternately. Thereafter, the cutting directions of the consecutively arranged sections are formed in opposite directions, so that air communication can be smoothly performed for each cutting unit 22a of the pin forming stage 22.

The pin forming end 22 of the cooling fin member 20 as described above improves the cooling efficiency of the oil.

The assembling step is a process for integrating the oil pipe 10 and the cooling fin member 20 in a predetermined form, and the coupling flange of the cooling fin member 20 on the outer surface of the oil pipe 10 ( 21) is made by winding the outer circumferential surface of the oil pipe 10 in a state of facing back.

At this time, since the cooling fin member 20 is wound around the oil pipe 10 in a spiral manner and fixed, the coupling state between the cooling fin member 20 and the oil piping 10 is maintained firmly.

In addition, such a spiral coupling method maintains a close contact state between the oil pipe 10 and the cooling fin member 20, thereby exerting a technical effect such as increasing heat conduction efficiency for heat exchange of oil.

In the above description of the preferred embodiment of the steering wheel pin form oil cooler device according to the present invention, the present invention is not limited to this and various modifications or changes made by those skilled in the art within the scope of the claims and the detailed description of the invention Implementation is also within the scope of the present invention.

1 is an exploded perspective view showing a first embodiment of a steering wheel pin form oil cooler device according to the present invention.

Figure 2 is a perspective view showing a first embodiment of the steering wheel fin form oil cooler device according to the present invention.

3 is a cross-sectional view taken along the line "A-A" shown in FIG.

Figure 4 is an exploded perspective view showing a second embodiment of the steering wheel pin form oil cooler device according to the present invention.

5 is a perspective view showing a second embodiment of the steering wheel pin form oil cooler device according to the present invention.

FIG. 6 is a sectional view taken along the line "B-B" shown in FIG.

7 is a flowchart briefly illustrating a method of manufacturing a steering wheel pin form oil cooler device according to the present invention.

Claims (4)

An oil pipe installed in association with a circulation path of the oil inside the steering wheel of the vehicle; It includes a cooling fin member is wound in a spiral manner on the outer surface of the oil pipe is configured to enable heat exchange of the oil, The cooling fin member is coupled to the coupling flange provided to be wound in a spiral manner on the outer surface of the oil pipe when the coupling; Steering wheel fin form oil cooler device which is integrally bent from the coupling flange, and provided with a plurality of cutting units to form a wide contact area with the air at the time of installation. The method of claim 1, The cutting units of the pin forming stage are formed of two groups each having a different cutting length, and the cutting lengths of the two groups are sequentially arranged alternately, and the cutting directions of two consecutive cutting units are formed to be opposite to each other. Steering wheel fin foam oil cooler device, characterized in that to increase the contact area while maintaining a smooth flow. The method of claim 1, The oil pipe and the cooling fin member is a steering wheel fin foam type oil cooler device, characterized in that the application of a material such as aluminum having high thermal conductivity. The method according to any one of claims 1 to 3, The oil pipe is a steering wheel pin form oil cooler device comprising a bracket for fixing the installation state.

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