KR-20260063556-A - REAR FLOOR ASSEMBLY FOR VEHICLE

KR20260063556AKR 20260063556 AKR20260063556 AKR 20260063556AKR-20260063556-A

Abstract

The present invention relates to a rear floor assembly for a vehicle, wherein a pair of longitudinal members (200) are connected to a first transverse member (300) and a second transverse member (400), and the first transverse member (300) and the second transverse member (400) are connected via a connecting reinforcing member (50), thereby enabling the strengthening of the overall skeletal structure of the rear floor assembly, improvement of side collision performance, and improvement of passenger protection performance.

Inventors

김정기
최선기
서정우

Assignees

현대자동차주식회사
기아 주식회사

Dates

Publication Date: 20260507
Application Date: 20241030

Claims (13)

Rear floor panel; A pair of longitudinal members connected to the above-mentioned rear floor panel and arranged to extend from the left and right sides of the vehicle forward and backward; and It includes a first transverse member and a second transverse member that are connected to the rear floor panel, spaced apart from each other in the front and rear of the vehicle, and extend to the left and right of the vehicle; A rear floor assembly for a vehicle, characterized in that the first transverse member and the second transverse member each have both ends connected to a longitudinal member.
In claim 1, A rear floor assembly for a vehicle, further comprising: a connecting reinforcing member disposed between the first transverse member and the second transverse member, with both ends extended in the front-rear direction of the vehicle and connected to the first transverse member and the second transverse member.
In claim 2, A rear floor assembly for a vehicle characterized by having two or more connecting reinforcing members spaced apart to the left and right of the vehicle.
In claim 2, The above-mentioned first transverse member is a rear floor front member assembly; The above rear floor front member assembly comprises a rear floor front member having both ends connected to a longitudinal member and positioned to the left and right of the vehicle; and A rear floor assembly for a vehicle, characterized by including a rear floor front member reinforcing member positioned below the rear floor front member and coupled to the rear floor front member, wherein the upper surfaces of both ends positioned to the left and right of the vehicle are connected to a longitudinal member via a side bracket, and the lower surfaces of both ends positioned to the left and right of the vehicle are connected to a rear floor panel.
In claim 4, A vehicle rear floor assembly characterized in that the above rear floor front member reinforcing member has an upper surface that protrudes forward of the rear floor front member while being combined with the front end of the rear floor front member.
In claim 5, If the front end of the above-mentioned connecting reinforcing member is connected to the rear end of the rear floor front member and is separated from the rear floor front member reinforcing member, a second sealed space is formed between the rear floor front member and the connecting reinforcing member, and between the rear floor front member reinforcing member and the rear floor panel; A rear floor assembly for a vehicle characterized by having a third sealed space formed inside the rear floor front member reinforcing material.
In claim 5, A rear floor assembly for a vehicle characterized in that the front end of the above-mentioned connecting reinforcing member is connected to the rear end of the rear floor front member and extends forward to be connected to the rear end of the rear floor front member reinforcing member.
In claim 4, A vehicle rear floor assembly characterized in that the above-mentioned rear floor front member reinforcing material is received within the rear floor front member and combined with the front and rear ends of the rear floor front member.
In claim 8, A second sealed space is formed between the upper surface of the rear floor front member and the rear floor front member reinforcing material; A third sealed space is formed inside the above rear floor front member reinforcement; A rear floor assembly for a vehicle characterized by having a fourth sealed space formed between the above-mentioned connecting reinforcing member, the rear floor front member reinforcing member, the rear floor panel, and the second transverse member.
In claim 1, The above second transverse member is a rear floor rear member assembly; The above rear floor rear member assembly comprises a rear floor rear member upper having both ends arranged on the left and right sides of the vehicle connected to a longitudinal member; and A rear floor assembly for a vehicle characterized by including: a rear floor rear member lower that is combined with the above-mentioned rear floor rear member upper to form a fifth sealed space between it and the rear floor rear member upper, and has both ends arranged on the left and right sides of the vehicle connected to a longitudinal member.
In claim 10, A rear floor assembly for a vehicle, further comprising a rear floor rear member reinforcing member disposed in the above-mentioned fifth sealed space and combined with a rear floor rear member upper and a rear floor rear member lower.
In claim 11, A rear floor assembly for a vehicle characterized by having a sixth sealed space formed inside the rear floor rear member reinforcing material.
In claim 1, A rear floor assembly for a vehicle, characterized in that the above-mentioned longitudinal member, first transverse member, and second transverse member each have a sealed cross-sectional structure to disperse collision energy generated during a side collision.

Description

Rear Floor Assembly for Vehicle The present invention relates to a rear floor assembly for a vehicle, and more specifically, to a technology for a rear floor assembly for a vehicle that can improve side collision performance through the strengthening of the skeletal structure. As interest in eco-friendly vehicles grows, the use of electric vehicles that utilize high-voltage batteries as a power source is increasing. The floors forming the interior of the vehicle may include a front floor and a rear floor, and a high-voltage battery may be mounted to be located on the rear floor. Therefore, the rear floor, which is equipped with a high-voltage battery, requires a rigid skeletal structure, and in particular, a structure capable of effectively responding to side collisions is required. The matters described above as background technology are intended only to enhance understanding of the background of the present invention and should not be construed as an acknowledgment that they constitute prior art already known to those skilled in the art. FIG. 1 is a perspective view of a rear floor assembly according to the present invention, FIG. 2 is an exploded view of a rear floor assembly according to the present invention, FIGS. 3 to 5 are cross-sectional views of lines I-I, II-II, and III-III of FIG. 1, FIGS. 6 and 7 are drawings of other embodiments contrasting with FIG. 5, FIG. 8 is a drawing illustrating an example in which a mounting portion of a high-voltage battery is located in a rear floor assembly according to the present invention. In describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art may obscure the essence of the embodiments disclosed in this specification, such detailed description is omitted. Furthermore, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and technical scope of the present invention. Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. A singular expression includes a plural expression unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not excluding in advance the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification, and do not inherently possess distinct meanings or roles. When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between. Furthermore, the terms "Unit" or "Control Unit" included in names such as Motor Control Unit (MCU) and Hybrid Control Unit (HCU) are merely widely used terms for naming controllers that control specific vehicle functions, and do not refer to generic function units. A controller may include a communication device that communicates with other controllers or sensors to control the function it is responsible for, a memory that stores an operating system, logic instructions, and input/output information, and one or more processors that perform judgments, calculations, decisions, etc., necessary for controlling the function it is responsible for. Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components regardless of drawing symbols are given the same reference number, and redundant descriptions thereof will be omitted. As illustrated in FIGS. 1 to 8, a rear floor assembly for a vehicle according to the present invention comprises: a rear floor panel (10); a pair of longitudinal members (20) connected to the rear floor panel (10) and arranged to extend forward and backward from the left and right sides of the vehicle; a first transverse member (30) and a second transverse member (40) connected to the rear floor panel (10), arranged spaced apart forward and backward from the v