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KR-102962273-B1 - FRONT BODY STRUCTURE

KR102962273B1KR 102962273 B1KR102962273 B1KR 102962273B1KR-102962273-B1

Abstract

The present invention relates to a front body structure comprising a front mounting bracket and a front side upper member connected to the front mounting bracket, wherein the front side upper member comprises an upper member upper surface inclined toward the rear and upward of the vehicle body and a front flange formed by a downward curvature from the upper member upper surface and connected to the front mounting bracket.

Inventors

  • 김언표

Assignees

  • 현대자동차 주식회사
  • 기아 주식회사

Dates

Publication Date
20260507
Application Date
20210225

Claims (16)

  1. Front mounting bracket; and A front side upper member connected to the above-mentioned front mounting bracket; Includes, The above front side upper member is Upper member upper surface formed inclined toward the rear and upward of the vehicle body; and A front flange formed by a downward bend from the upper surface of the upper member and connected to the front mounting bracket; Includes, A front side member connected to the above-mentioned front mounting bracket; and A front side member bracket connecting the front mounting bracket, the front side member, and the front side upper member; Includes more, The above front side member bracket is An upper bracket connecting the front mounting bracket and the front side member; Includes, The above upper bracket is Upper bracket upper surface formed along the longitudinal direction of the vehicle body; An upper bracket lower surface formed on the lower part of the upper surface of the upper bracket in the longitudinal direction of the vehicle body; and An upper front flange of the upper bracket formed by curving upward from the upper surface of the upper bracket and coupled with the front mounting bracket and the front flange; A front body structure including
  2. In Paragraph 1, A front mounting bracket upper bolt hole is formed in the upper part of the above front mounting bracket, and A front body structure having a front flange upper bolt hole formed in the front flange corresponding to the front mounting bracket upper bolt hole.
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  6. In paragraph 1, A crash box mounted on the front of the above-mentioned front mounting bracket; Including more, The upper bracket upper surface and the upper bracket lower surface are a front body structure provided adjacent to the upper and lower mounting positions of the crash box.
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  8. In paragraph 1, A front body structure having an upper front flange bolt hole corresponding to the front mounting bracket upper bolt hole and the upper front flange bolt hole formed in the upper front flange of the upper bracket.
  9. In paragraph 1, The above upper bracket is An upper bracket lower flange formed by a downward bend on the lower surface of the upper bracket and connected to the front mounting bracket; A front body structure including further
  10. In Paragraph 9, A front mounting bracket lower bolt hole is formed in the lower part of the above front mounting bracket, and The upper bracket lower flange is a front body structure that is coupled to the front mounting bracket adjacent to the front mounting bracket lower bolt hole.
  11. In Paragraph 1, A front body structure having welding holes formed in the upper surface of the upper bracket and the lower surface of the upper bracket, respectively.
  12. In Paragraph 11, A front body structure having a mounting bracket welding hole formed in the front mounting bracket that communicates with the welding holes of the upper bracket.
  13. Front mounting bracket; and A front side upper member connected to the above-mentioned front mounting bracket; Includes, The above front side upper member is Upper member upper surface formed inclined toward the rear and upward of the vehicle body; and A front flange formed by a downward bend from the upper surface of the upper member and connected to the front mounting bracket; Includes, A front side member connected to the above-mentioned front mounting bracket; and A front side member bracket connecting the front mounting bracket, the front side member, and the front side upper member; Includes more, The above front side member bracket is An upper bracket connecting the front mounting bracket and the front side member; and A lower bracket connected to the lower part of the above front mounting bracket and the above upper bracket; A front body structure including
  14. In Paragraph 13, A lower bracket bulkhead provided on the inner side of the lower bracket and the front mounting bracket; A front body structure including further
  15. In Paragraph 13, The above front side upper member is A front side upper inner member connected to the rear of the front mounting bracket and connected to the upper surface of the upper bracket; and A front side upper outer member connected to the front mounting bracket, wrapping around the upper bracket, and coupled to the front side upper inner member; A front body structure including
  16. In Paragraph 15, The above front side upper member is A front side upper inner member upper flange formed extending upward from the above front side upper inner member; and An upper flange of a front side upper outer member that extends upward from the above front side upper outer member and is coupled to the upper flange of the above front side upper inner member; A front body structure including

Description

Front Body Structure The present invention relates to a front body structure, and more specifically, to a front body structure that facilitates collision load distribution by securing the height-direction length of the front side upper member. In a typical FEM (Front End Module) mounting bracket, a welding flange for spot welding is formed on the outer side of the side upper member cross-section. However, if a welding flange is formed on the inner side of the front side upper member, the weld area is formed within a closed section. This prevents the welding gun from entering during spot welding, resulting in a problem where the length of the front side upper member in the vehicle body height direction becomes relatively smaller. In addition, multiple inflection points are created in the lateral profile of the front side upper member, which causes the collision load to be concentrated at multiple inflection points during a collision and limits the efficient transfer of collision energy. The matters described in this background technology section are written to enhance understanding of the background of the invention and may include matters that are not prior art already known to those skilled in the art to which this technology belongs. These drawings are for reference to explain exemplary embodiments of the present invention, and the technical concept of the present invention should not be interpreted as being limited to the attached drawings. FIG. 1 is a perspective view of a front body structure according to an embodiment of the present invention, viewed from the front of the vehicle body. FIG. 2 is an exploded perspective view of a front vehicle body structure according to an embodiment of the present invention. Figure 3 is a cross-sectional view along line III-III of Figure 1. FIG. 4 is a partial perspective view of the vehicle body viewed from the rear, excluding the front side upper outer member of the front body structure according to an embodiment of the present invention. FIG. 5 is a partial perspective view of FIG. 4 excluding the front side upper inner member. FIG. 6 is a partial perspective view of FIG. 5 excluding the lower bracket. FIG. 7 is a partial perspective view excluding the upper bracket and the second front side member unit from FIG. 6. FIG. 8 is a cross-sectional view along line VIII-VIII of FIG. 1. FIG. 9 is a side view of a front body structure according to an embodiment of the present invention. Figure 10 is an enlarged view of part A of Figure 9. Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. To clearly explain the present invention, parts unrelated to the explanation have been omitted, and the same reference numerals are used for identical or similar components throughout the specification. The size and thickness of each component shown in the drawings are arbitrarily depicted for convenience of explanation, and the present invention is not necessarily limited to what is shown in the drawings; the thickness has been enlarged to clearly represent various parts and regions. Furthermore, in the detailed description below, the designation of components as "1st," "2nd," etc., is intended to distinguish them due to their identical nature, and is not strictly limited to that order in the description below. Throughout the specification, when a part is described as including a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. In addition, terms such as ...part, ...means, etc., as described in the specification refer to a comprehensive unit of composition that performs at least one function or operation. When a part such as a layer, membrane, region, or plate is said to be "on" another part, this includes not only the case where it is directly on top of the other part, but also the case where there is another part in between. Conversely, when it is said that one part is "directly above" another part, it means that there is no other part in between. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. FIG. 1 is a perspective view of a front body structure according to an embodiment of the present invention viewed from the front of the vehicle body, and FIG. 2 is an exploded perspective view of a front body structure according to an embodiment of the present invention. Referring to FIGS. 1 and 2, a front body structure according to an embodiment of the present invention includes a front mounting bracket (10) and a front side upper member (40) connected to the front mounting bracket (10). In addition, the front body structure according to an embodime