KR20160136527A

KR20160136527A - Wheel house for vehicle

Info

Publication number: KR20160136527A
Application number: KR1020150069902A
Authority: KR
Inventors: 김석주; 조정민; 김준수
Original assignee: 현대자동차주식회사
Priority date: 2015-05-19
Filing date: 2015-05-19
Publication date: 2016-11-30
Also published as: KR101693992B1

Abstract

A first reinforcing portion protruding inwardly or outwardly is integrally formed with an inner wheel house integrally formed with the inner wheel house and is joined to the first reinforcing portion of the inner wheel house so as to protrude inward or outward, And a space portion formed by the first reinforcement portion and the second reinforcement portion when the inner wheel house and the outer wheel house are combined with each other.

Description

WHEEL HOUSE FOR VEHICLE

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a stiffener integrated body structure for improving the rigidity of a vehicle.

Generally, the design of the vehicle body is made to increase the rigidity while reducing the weight of the vehicle body. Especially, it is very important to reduce the weight of the vehicle and increase the stiffness.

In the prior art, as a method for supplementing the stiffness of the vehicle body structure to increase the durability, methods of increasing the stiffness and thickness of the material itself, modifying the structure, and combining separate reinforcements are used.

Increasing the stiffness or thickness of the material itself often has a negative effect, such as an increase in the production unit price and an increase in the weight of the vehicle body.

Particularly, when a separate reinforcing material is combined, the number of parts increases, which makes it difficult to supply and receive parts, and there is a drawback in that the weight of the vehicle body increases. In addition, the assembly process becomes complicated, which increases the production time and increases the probability of occurrence of a failure in assembly. In addition, there is a problem that a quality deterioration such as welding failure or weld defect is likely to occur when a plurality of stiffeners are combined in a portion where an increase in rigidity is required.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

KR 10-2012-0144826 A1

It is an object of the present invention to provide a vehicle body structure for improving fuel efficiency of an automobile by reducing the number of component parts and providing ease of assembly and using lightweight parts.

According to an aspect of the present invention, there is provided a vehicle wheel house comprising: an inner wheel house integrally formed with a first reinforcing portion protruding inwardly or outward; An outer wheel house superimposed on the inner wheel house and integrally molded with the second reinforcing portion so as to protrude inward or outward at a position corresponding to the first reinforcing portion of the inner wheel house; And a space portion formed by the first reinforcement portion and the second reinforcement portion when the inner wheel house and the outer wheel house are engaged with each other.

The honeycomb structure core is inserted into the space portion and the through hole of the honeycomb structure can be formed so that the direction coincides with the direction of the load acting on the space portion.

A mounting portion to which the vehicle component is coupled is formed in the first reinforcing portion or the second reinforcing portion, a honeycomb structural core is inserted into a space portion at a point where the mounting portion is formed, and the through hole of the honeycomb structure is formed so that its direction faces the mounting portion have.

A core is inserted into the space portion, and a support panel for supporting the core may be coupled to the first reinforcement portion or the second reinforcement portion.

Both ends of the support panel may be fixed to the first reinforcement portion or the second reinforcement portion, and the central portion may be formed to be bent and protruded toward the core side.

Wherein the space portion is formed between the first reinforcing portion and the second reinforcing portion, and the support panel is interposed between the first reinforcing portion and the second reinforcing portion to divide the space portion, and the core is inserted into one of the two divided spaces, Can be supported by the panel.

The support panel can be inserted between the inner wheel house and the outer wheel house and joined together by extending both ends.

The through-hole end of the honeycomb structure core may be inserted in a vertical direction with respect to the mounting portion, and the other end may be inserted into the support panel in a vertical direction.

A nut can be inserted into the cell of the honeycomb structure core to face the mounting portion.

The material of the inner wheel house or the outer wheel house may be composed of carbon fiber reinforced plastic.

According to the vehicle wheelhouse structure of the present invention as described above, it is possible to reduce the number of components, improve the usability of assembling, improve the quality by reducing assembly failure, and improve fuel efficiency by reducing weight.

1 is a view showing an inner wheel house according to an embodiment of the present invention;
2 is a view showing an outer wheel house according to an embodiment of the present invention;
3 is a perspective view of the assembly of the wheel house according to the embodiment of the present invention
Fig. 4 is a cross-sectional view of the wheel house shown in Fig. 3 taken along line AA
Fig. 5 is a sectional view of the wheel house shown in Fig. 3 taken along line BB
6 is a view showing a core of a honeycomb structure according to an embodiment of the present invention
FIG. 7 is a cross-sectional view of the core of the honeycomb structure shown in FIG. 6 cut along the CC line

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a view of an inner wheel house 100 according to an embodiment of the present invention, FIG. 2 is a view of an outer wheel house 200 according to an embodiment of the present invention, and FIG. 3 is a perspective view of a wheel house according to an embodiment of the present invention. FIG. 4 is a cross-sectional view of the wheel house shown in FIG. 3 taken along the line AA, FIG. 5 is a cross-sectional view taken along the line BB of the wheel house shown in FIG. 3, and FIG. FIG. 7 is a sectional view of the core 400 of the honeycomb structure shown in FIG. 6 cut along the CC line.

To achieve the above object, the present invention provides a vehicle wheel house comprising: an inner wheel house (100) integrally formed with a first reinforcing portion (101) protruding inward or outward; And the second reinforcing portion 201 is formed integrally with the inner wheel house 100 so as to protrude inward or outward at a position corresponding to the first reinforcing portion 101 of the inner wheel house 100, A wheel house 200; And a space portion 500 formed by the first reinforcing portion 101 and the second reinforcing portion 201 when the inner wheel house 100 and the outer wheel house 200 are coupled.

Referring to Figs. 1 to 3, the inner wheel house 100 is integrally formed with a first reinforcing portion 101 protruding inward or outward. The outer wheel house 200 is superimposed on the inner wheel house 100 and is coupled to the second reinforcing portion 201 so as to protrude inward or outward at a position corresponding to the first reinforcing portion 101 of the inner wheel house 100 Are integrally formed. The space portion 500 is formed by the first reinforcing portion 101 and the second reinforcing portion 201 when the inner wheel house 100 and the outer wheel house 200 are coupled.

In the conventional case, the reinforcing portion is formed as a separate part and joined to the wheel house by welding or the like. In this case, as the number of components increases, the weight increases, adversely affecting the fuel efficiency of the vehicle, and the assembly process increases, thereby increasing the production time. Also, as the thickness of the metal increases due to the overlapping of the welds, the weld is frequently defective and the problem of quality deteriorates. In some cases, assembly may not be possible.

According to the present invention, the reinforcing parts (101, 201) are integrally formed with the wheel houses (100, 200) to reduce the number of parts, thereby simplifying the assembling process and shortening the production time of the vehicle. It is possible to solve the quality degradation problem such as welding defect because welding is not necessary. The reinforcing portions 101 and 201 formed at the positions corresponding to each other when the inner wheel house 100 and the outer wheel house 200 are coupled to each other constitute the space portion 500, It has the advantage of being able to withstand loads.

The honeycomb structure core 400 is inserted into the space part 500 and the through hole of the honeycomb structure can be formed so that the direction coincides with the direction of the load acting on the space part 500.

4 to 7, the honeycomb structure core 400 has the advantage of being able to withstand a large load even with a small mass structure, but it has a characteristic in which the endurance load varies with the direction of transmission of the load. So that the advantages of the honeycomb structure can be effectively utilized.

A mounting portion 203 is formed on the first reinforcing portion 101 or the second reinforcing portion 201 and the space portion 500 where the mounting portion 203 is formed is provided with a honeycomb structural core 400 And the through hole of the honeycomb structure may be formed so that the direction of the through hole is directed toward the mounting portion 203.

2, the vehicle wheel house structure according to the present invention is characterized in that the mounting portion 203 is provided on the first reinforcing portion 101 or the second reinforcing portion 201, There is an effect that the direction of the load transmitted by the vehicle component can be uniformly aligned. Accordingly, the mounting direction in which the honeycomb structural core 400 can be efficiently utilized can be easily determined.

The core is inserted into the space portion 500 and the support panel 300 supporting the core may be coupled to the first reinforcement portion 101 or the second reinforcement portion 201.

3 to 4, the vehicle wheelhouse structure according to the present invention can reduce the amount of the honeycomb structural core 400 inserted into the space 500 by providing the support panel 300. FIG. Further, by adjusting the installation angle of the support panel 300 in consideration of the through hole direction of the honeycomb structural core 400, it is possible to effectively transmit the load transmitted through the mounting portion 203 and the honeycomb structural core 400 to the wheel house Lt; / RTI >

Both ends of the support panel 300 may be fixed to the first reinforcing portion 101 or the second reinforcing portion 201 and the central portion 301 may be bent to protrude toward the core.

4, the central portion 301 of the support panel 300 is bent and protruded so that the support panel 300 receives a compressive load instead of a tensile load, so that a large load is applied to the support panel 300 of the flat panel There is an effect of not being broken.

The space part 500 is formed between the first reinforcing part 101 and the second reinforcing part 201 and the supporting panel 300 is formed between the first reinforcing part 101 and the second reinforcing part 201 And the core may be inserted into any one of the two divided spaces 500 and supported by the support panel 300. [

The support panel 300 may be inserted between the inner wheel house 100 and the outer wheel house 200 and joined together by overlapping.

4, when both end portions of the support panel 300 are extended and fitted between the inner wheel house 100 and the outer wheel house 200, the coupling between the support panel 300 and the wheel house can be achieved by a simple wheel There is an effect that the risk of breakage is reduced by structurally coupling and supporting through overlapping portions without depending only on the welding of the house and the support panel 300. [

The through-hole end of the honeycomb structural body 400 may be inserted into the mounting portion 203 in a direction perpendicular to the mounting portion 203, and the other end may be inserted into the support panel 300 in a vertical direction.

The honeycomb structure core 400 has the advantage of being able to withstand a large load even with a small mass structure, but does not exhibit the same characteristics in all directions and exhibits a high endurance load in a specific direction.

The vehicle wheelhouse according to the present invention is able to bear the load most effectively by allowing the support panel 300 and the mounting portion 203 to be coupled to each other in a direction perpendicular to the through hole direction of the honeycomb structure core 400 which is one of the directions of strong endurance load There are advantages to be able to.

A nut may be inserted into the cell of the honeycomb structural core 400 and may be interfaced with the mounting portion 203.

Referring to FIG. 4, when the nut for coupling the vehicle component is coupled to the mounting portion 203, there is a case where welding is impossible or the component is broken due to poor welding condition. However, according to the present invention When a nut is inserted into a cell of the honeycomb structural body 400 and joined thereto, no separate welding is required, thereby reducing the possibility of welding failure or component breakage.

6 through 7, when the nut is inserted into the cell of the honeycomb structural core 400, the size of the inner space of the cell may be equal to the size of the outer diameter of the nut, The space between the cell and the nut may be filled with a filler to fill the space between the cell and the nut.

The material of the inner wheel house 100 or the outer wheel house 200 may be made of carbon fiber-reinforced plastic.

Since the inner wheel house 100 and the upper wheel house are made of carbon fiber reinforced plastic, the weight of the parts is reduced and the strength is increased. By using the carbon fiber reinforced plastic, 2 enhancing degree of molding of the reinforcing portion 201, the mounting portion 203 and the like is increased.

When the thermoplastic resin-based composite material is used, the honeycomb structural core 400 may be inserted into the reinforcing portions 101 and 201 after the wheel houses 100 and 200 are formed by compression molding, and then thermally fused together. In the case of using a pre-impregnated material based on a thermosetting resin, the prepreg and the honeycomb structural core 400 are placed on a metal mold and integrally molded by an autoclave. At this time, the honeycomb structural core 400 acts as a mold of the reinforcing portion.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, 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 following claims It will be apparent to those of ordinary skill in the art.

100: Inner wheel house 200: Outer wheel house
300: Support panel 400: Honeycomb structure core
500: space portion

Claims

An inner wheel house integrally molded with a first reinforcing portion projecting inwardly or outwardly;
An outer wheel house integrally joined to the inner wheel house and integrally molded with the second reinforcing portion so as to protrude inward or outward at a position corresponding to the first reinforcing portion of the inner wheel house; And
And a space formed by the first reinforcement portion and the second reinforcement portion when the inner wheel house and the outer wheel house are engaged.

The method according to claim 1,
Wherein the honeycomb structure core is inserted into the space portion and the through hole of the honeycomb structure is formed so that the direction coincides with the direction of the load acting on the space portion.

The method according to claim 1,
A mounting portion to which a vehicle component is coupled is formed in the first reinforcing portion or the second reinforcing portion, a honeycomb structural core is inserted into a space portion at a point where the mounting portion is formed, and the through hole of the honeycomb structure is formed such that its direction faces the mounting portion Wheelhouse.

The method according to claim 1,
Wherein a core is inserted into the space portion, and a support panel for supporting the core is coupled to the first reinforcement portion or the second reinforcement portion.

The method of claim 4,
Wherein the support panel is formed such that both end portions thereof are fixed to the first reinforcement portion or the second reinforcement portion, and the central portion is bent and projected toward the core side.

The method of claim 4,
Wherein the space portion is formed between the first reinforcing portion and the second reinforcing portion, and the support panel is interposed between the first reinforcing portion and the second reinforcing portion to divide the space portion, and the core is inserted into one of the two divided spaces, Wherein the frame is supported by a panel.

The method of claim 6,
Wherein the support panel is inserted and overlapped between the inner wheel house and the outer wheel house with both end portions extended.

The method of claim 4,
Wherein the through-hole end of the honeycomb structural core is inserted in a vertical direction with respect to the mounting portion, and the other end of the honeycomb core is inserted into the support panel in a vertical direction.

The method of claim 8,
And a nut is inserted into the cell of the honeycomb structural core to face the mounting portion.

The method according to claim 1,
And the material of the inner wheel house or the outer wheel house is carbon fiber reinforced plastic.