KR102703585B1 - Vehicle body structure and vehicle including the same - Google Patents

Vehicle body structure and vehicle including the same Download PDF

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KR102703585B1
KR102703585B1 KR1020190095289A KR20190095289A KR102703585B1 KR 102703585 B1 KR102703585 B1 KR 102703585B1 KR 1020190095289 A KR1020190095289 A KR 1020190095289A KR 20190095289 A KR20190095289 A KR 20190095289A KR 102703585 B1 KR102703585 B1 KR 102703585B1
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battery
floor panel
members
reinforcing
center
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KR20210016904A (en
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김형태
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현대자동차주식회사
기아 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/28—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0416—Arrangement in the rear part of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0438—Arrangement under the floor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0455—Removal or replacement of the energy storages
    • B60K2001/0466—Removal or replacement of the energy storages from above
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/11—Electric energy storages
    • B60Y2400/112—Batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

차체구조물 및 이를 포함하는 차량을 개시한다. 본 발명의 실시 예에 따른 차체구조물은 센터터널, 센터크로스멤버, 좌측 및 우측 센터사이드멤버를 갖춘 센터플로어패널; 센터플로어패널과 리어플로어패널을 연결하며 위에 배터리장착부가 마련된 인텀플로어패널; 인텀플로어패널의 후방 측에 마련되며 배터리장착부의 후방을 보강하는 인텀크로스멤버; 및 인텀플로어패널에 마련되고 인텀크로스멤버로부터 전방으로 연장되며 배터리장착부를 보강하는 하나 이상의 보강멤버를 포함한다.A body structure and a vehicle including the same are disclosed. The body structure according to an embodiment of the present invention includes: a center floor panel having a center tunnel, a center cross member, and left and right center side members; an intermediate floor panel connecting the center floor panel and the rear floor panel and having a battery mounting portion provided thereon; an intermediate cross member provided on a rear side of the intermediate floor panel and reinforcing the rear of the battery mounting portion; and one or more reinforcing members provided on the intermediate floor panel and extending forward from the intermediate cross member and reinforcing the battery mounting portion.

Description

차체구조물 및 이를 포함하는 차량{VEHICLE BODY STRUCTURE AND VEHICLE INCLUDING THE SAME}VEHICLE BODY STRUCTURE AND VEHICLE INCLUDING THE SAME

본 발명은 배터리의 결속 및 지지구조를 개선해 경량화하면서도 강성을 향상시킬 수 있는 차체구조물 및 이를 포함하는 차량에 관한 것이다.The present invention relates to a body structure capable of improving rigidity while reducing weight by improving the bonding and support structure of a battery, and to a vehicle including the same.

하이브리드 차량(HEV: Hybrid Electric Vehicle)이나 플러그인 하이브리드 차량(PHEV: Plug-in Hybrid Electric Vehicle)은 구동계의 특성 상 연료탱크뿐 아니라 대용량 배터리를 포함한다. Hybrid vehicles (HEV: Hybrid Electric Vehicle) and plug-in hybrid vehicles (PHEV: Plug-in Hybrid Electric Vehicle) include large-capacity batteries in addition to fuel tanks due to the characteristics of their drivetrains.

이러한 차량은 리어플로어 쪽에 대용량 배터리가 설치되기 때문에 배터리 주변 차체구조물의 비틀림 강성, 종방향 굽힘강성, 횡방향 굽힘강성을 국부적으로 보강할 필요가 있다.Since these vehicles have large-capacity batteries installed in the rear floor, it is necessary to locally reinforce the torsional rigidity, longitudinal bending rigidity, and lateral bending rigidity of the body structure around the battery.

그러나 종래 차체구조물의 보강은 배터리를 차체구조물에 고정하는 체결부분의 강성을 국부적으로 높이는 방식으로 이루어지기 때문에 차체구조물의 강성을 전체적으로 높이는데 한계가 있었다. However, since the reinforcement of the body structure in the past was done by locally increasing the rigidity of the fastening part that fixes the battery to the body structure, there was a limit to increasing the rigidity of the body structure as a whole.

본 발명의 일측면은 배터리의 결속 및 지지구조를 개선해 경량화하면서도 강성을 향상시킬 수 있는 차체구조물 및 이를 포함하는 차량을 제공하고자 한다.One aspect of the present invention is to provide a body structure and a vehicle including the same that can improve rigidity while reducing weight by improving the binding and support structure of a battery.

본 발명의 일측면에 따르면, 센터터널, 센터크로스멤버, 좌측 및 우측 센터사이드멤버를 갖춘 센터플로어패널; 상기 센터플로어패널과 리어플로어패널을 연결하며 위에 배터리장착부가 마련된 인텀플로어패널; 상기 인텀플로어패널의 후방 측에 마련되며 상기 배터리장착부의 후방을 보강하는 인텀크로스멤버; 및 상기 인텀플로어패널에 마련되고 상기 인텀크로스멤버로부터 전방으로 연장되며 상기 배터리장착부를 보강하는 하나 이상의 보강멤버를 포함하는 차체구조물이 제공될 수 있다.According to one aspect of the present invention, a body structure may be provided, including: a center floor panel having a center tunnel, a center cross member, and left and right center side members; an intermediate floor panel connecting the center floor panel and the rear floor panel and having a battery mounting portion provided thereon; an intermediate cross member provided on a rear side of the intermediate floor panel and reinforcing a rear of the battery mounting portion; and one or more reinforcing members provided on the intermediate floor panel and extending forwardly from the intermediate cross member and reinforcing the battery mounting portion.

상기 보강멤버는 상기 인텀크로스멤버 양측으로부터 각각 전방으로 연장되며 상기 배터리장착부 양측을 각각 보강하는 제1 및 제2보강멤버를 포함할 수 있다.The above reinforcing members may include first and second reinforcing members that extend forward from both sides of the intermediate cross member and reinforce both sides of the battery mounting portion, respectively.

상기 보강멤버는 상기 제1 및 제2보강멤버 사이의 상기 인텀플로어패널에 마련되고 상기 인텀크로스멤버로부터 전방으로 연장되며 상기 배터리장착부의 중간부분을 보강하는 제3보강멤버를 더 포함할 수 있다.The above reinforcing member may further include a third reinforcing member that is provided on the intermediate floor panel between the first and second reinforcing members and extends forward from the intermediate cross member and reinforces the middle portion of the battery mounting portion.

상기 차체구조물은 상기 인텀플로어패널 하면에 마련되고 상기 제1 및 제2보강멤버로부터 전방으로 연장되어 상기 좌측 및 우측 센터사이드멤버에 연결되는 제1 및 제2연장멤버를 더 포함할 수 있다.The above body structure may further include first and second extension members that are provided on the lower surface of the intermediate floor panel and extend forward from the first and second reinforcing members and are connected to the left and right center side members.

상기 인텀크로스멤버는 양단이 상기 리어플로어패널 양측의 리어사이드멤버에 각각 연결될 수 있다.The above intermediate cross member can be connected at both ends to the rear side members on both sides of the rear floor panel.

상기 차체구조물은 상기 제1 및 제2연장멤버가 마련된 위치의 상기 인텀플로어패널 및 상기 센터플로어패널 상면에 결합되며 상기 배터리장착부 전방 양측으로부터 상기 센터크로스멤버까지 전후방향으로 각각 연장된 제1 및 제2배터리지지멤버; 및 상기 인텀플로어패널 상면에 결합되며 상기 제3보강멤버가 위치하는 상기 배터리장착부 중간부분 전방위치으로부터 상기 센터터널까지 연장된 제3배터리지지멤버;를 더 포함할 수 있다.The above body structure may further include first and second battery support members, which are connected to the upper surfaces of the intermediate floor panel and the center floor panel at positions where the first and second extension members are provided and which extend forward and backward from both sides in the front direction of the battery mounting portion to the center cross member, respectively; and a third battery support member, which is connected to the upper surface of the intermediate floor panel and which extends from a position forward of the middle portion of the battery mounting portion where the third reinforcing member is located to the center tunnel.

상기 차체구조물은 상기 배터리장착부에 탑재된 배터리의 상부를 결속한 상태로 상기 인텀크로스멤버와 상기 제1 내지 제3배터리지지멤버에 체결되는 결속구조물을 더 포함할 수 있다.The above body structure may further include a fastening structure that is fastened to the intermediate cross member and the first to third battery support members while fastening the upper portion of the battery mounted on the battery mounting portion.

상기 결속구조물은 상기 배터리를 전후방향으로 결속하며 한쪽이 상기 제1배터리지지멤버에 체결되고 다른 쪽이 제1보강멤버가 연결된 위치의 상기 인텀크로스멤버에 체결되는 제1결속프레임; 및 상기 배터리를 전후방향으로 결속하며 한쪽이 상기 제2배터리지지멤버에 체결되고 다른 쪽이 제1보강멤버가 연결된 위치의 상기 인텀크로스멤버에 체결되는 제2결속프레임;을 포함할 수 있다.The above-described fastening structure may include a first fastening frame that fastens the battery in the front-back direction and has one end fastened to the first battery support member and the other end fastened to the intermediate cross member at a position where the first reinforcing member is connected; and a second fastening frame that fastens the battery in the front-back direction and has one end fastened to the second battery support member and the other end fastened to the intermediate cross member at a position where the first reinforcing member is connected.

상기 결속구조물은 상기 배터리를 차폭방향으로 결속하며 양단이 상기 리어플로어패널 양측에 마련된 리어사이드멤버에 체결되는 제3결속프레임을 더 포함할 수 있다.The above-mentioned fastening structure may further include a third fastening frame that fastens the battery in the width direction and has both ends fastened to rear side members provided on both sides of the rear floor panel.

상기 결속구조물은 상기 배터리 상측을 보강하며 상기 제1 내지 제3결속프레임에 의해 결속되는 상부프레임; 및 상기 상부프레임으로부터 연장되어 상기 제3배터리지지멤버에 체결되는 제4결속프레임을 더 포함할 수 있다.The above-mentioned fastening structure may further include an upper frame that reinforces the upper side of the battery and is fastened by the first to third fastening frames; and a fourth fastening frame that extends from the upper frame and is fastened to the third battery support member.

본 발명의 다른 측면에 따르면, 전술한 차체구조물을 포함하는 차량이 제공될 수 있다.According to another aspect of the present invention, a vehicle including the above-described body structure can be provided.

본 발명의 실시 예에 따른 차체구조물은 인텀크로스멤버 및 보강멤버들이 배터리장착부의 강성을 강화하기 때문에 차체구조물을 경량화 하면서도 배터리장착부의 강성 뿐 아니라 전체의 종방향 굽힘강성, 횡방향 굽힘강성, 비틀림 강성을 높일 수 있다.According to an embodiment of the present invention, the body structure can reduce the weight of the body structure while increasing not only the rigidity of the battery mounting portion but also the longitudinal bending rigidity, transverse bending rigidity, and torsional rigidity of the entire body structure because the intermediate cross members and reinforcing members reinforce the rigidity of the battery mounting portion.

본 발명의 실시 예에 따른 차체구조물은 결속구조물의 제1 내지 결속프레임이 하측의 제1 내지 제3보강멤버와 함께 배터리를 환형으로 결속하기 때문에 배터리와 결속구조물이 강성을 높이는 구조체의 역할을 하여 차체구조물의 전체적인 강성을 향상시킬 수 있다.According to an embodiment of the present invention, the body structure can improve the overall rigidity of the body structure because the first to third reinforcing members of the binding structure and the first to third binding frames bind the battery in a ring shape together, so that the battery and the binding structure serve as a structure that increases rigidity.

본 발명의 실시 예에 따른 차체구조물은 좌측 및 우측 프론트사이드멤버, 좌측 및 우측 센터사이드멤버, 제1 및 제2연장멤버, 제1 및 제2보강멤버가 종방향으로 연속하도록 배치되고, 제1 및 제2배터리지지멤버가 제1 및 제2연장멤버 상측을 보강하기 때문에 종방향 굽힘강성을 높일 수 있고, 차량의 충돌 시 종방향 충돌에너지가 배터리장착부에 이르러 분산되도록 할 수 있다.According to an embodiment of the present invention, a body structure includes left and right front side members, left and right center side members, first and second extension members, and first and second reinforcing members arranged longitudinally and continuously, and the first and second battery support members reinforce the upper portions of the first and second extension members, so that longitudinal bending rigidity can be increased, and longitudinal collision energy can be dispersed to a battery mounting portion when a vehicle collides.

도 1은 본 발명의 실시 예에 따른 차체구조물의 사시도이다.
도 2는 본 발명의 실시 예에 따른 차체구조물의 분해사시도이다.
도 3은 본 발명의 실시 예에 따른 차체구조물의 평면도이다.
도 4는 본 발명의 실시 예에 따른 차체구조물의 사시도로 배터리 및 결속구조물을 분리한 상태를 나타낸다.
도 5는 본 발명의 실시 예에 따른 차체구조물의 사시도로 결속구조물의 설치상태를 나타낸다.
도 6은 도 5의 A-A'선에 따른 단면도이다.
도 7은 도 5의 B-B'선에 따른 단면도이다.
도 8은 도 5의 C-C'선에 따른 단면도이다.FIG. 1 is a perspective view of a body structure according to an embodiment of the present invention.
Figure 2 is an exploded perspective view of a body structure according to an embodiment of the present invention.
Figure 3 is a plan view of a body structure according to an embodiment of the present invention.
FIG. 4 is a perspective view of a body structure according to an embodiment of the present invention, showing a state in which the battery and the fastening structure are separated.
Figure 5 is a perspective view of a body structure according to an embodiment of the present invention, showing the installation state of a fastening structure.
Figure 6 is a cross-sectional view taken along line A-A' of Figure 5.
Figure 7 is a cross-sectional view taken along line B-B' of Figure 5.
Figure 8 is a cross-sectional view taken along line C-C' of Figure 5.

이하에서는 본 발명의 실시 예를 첨부 도면을 참조하여 상세히 설명한다. 이하의 실시 예는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 본 발명의 사상을 충분히 전달하기 위해 제시하는 것이며, 여기서 제시한 것으로 한정되지 않고 다른 형태로 구체화될 수도 있다. 도면은 본 발명을 명확히 하기 위해 설명과 관계 없는 부분의 도시를 생략할 수 있고, 이해를 돕기 위해 구성요소의 크기를 다소 과장하여 표현할 수 있다. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are presented to sufficiently convey the idea of the present invention to those skilled in the art to which the present invention pertains, and are not limited to those presented herein and may be embodied in other forms. In order to clarify the present invention, the drawings may omit parts that are not related to the description, and may somewhat exaggerate the sizes of components to help understanding.

도 1 내지 도 3을 참조하면, 본 발명의 실시 예에 따른 차체구조물은 객실 바닥을 이루는 센터플로어패널(10), 후미 바닥을 이루는 리어플로어패널(20), 센터플로어패널(10)과 리어플로어패널(20) 사이에 마련되며 그 위에 배터리(40)를 탑재하기 위한 배터리장착부(50)가 마련된 인텀플로어패널(30), 배터리(40)를 결속하는 결속구조물(100)을 포함한다.Referring to FIGS. 1 to 3, a body structure according to an embodiment of the present invention includes a center floor panel (10) forming a passenger compartment floor, a rear floor panel (20) forming a rear floor, an intermediate floor panel (30) provided between the center floor panel (10) and the rear floor panel (20) and having a battery mounting portion (50) for mounting a battery (40) thereon, and a fastening structure (100) for fastening the battery (40).

센터플로어패널(10)은 좌측 및 우측 센터사이드멤버(11,12), 좌측 및 우측 사이드실(13,14), 센터터널(15), 복수의 센터크로스멤버(16a,16b,16c)을 포함할 수 있다. 좌측 센터사이드멤버(11)와 우측 센터사이드멤버(12)는 센터플로어패널(10)의 하부에 결합된 상태에서 센터플로어패널(10)을 보강한다. 좌측 센터사이드멤버(11)와 우측 센터사이드멤버(12)는 종방향 굽힙강성을 높이도록 전후방향으로 길게 연장되고, 전단이 좌측 및 우측 프론트사이드멤버(17,18)와 각각 연결된다. The center floor panel (10) may include left and right center side members (11, 12), left and right side sills (13, 14), a center tunnel (15), and a plurality of center cross members (16a, 16b, 16c). The left center side member (11) and the right center side member (12) reinforce the center floor panel (10) while being joined to the lower portion of the center floor panel (10). The left center side member (11) and the right center side member (12) are elongated in the front-rear direction to increase longitudinal bending rigidity, and the shear ends are connected to the left and right front side members (17, 18), respectively.

도 3을 참조하면, 좌측 사이드실(13)과 우측 사이드실(14)은 센터플로어패널(10) 좌측단부와 우측단부를 보강하도록 전후방향으로 길게 연장된다. 좌측 사이드실(13)과 우측 사이드실(14)은 좌측 및 우측 프론트사이드멤버(17,18)로부터 사선방향으로 각각 연장된 연장구조물(13a,14a)과 연결될 수 있다.Referring to Fig. 3, the left side sill (13) and the right side sill (14) are extended in the forward and backward direction to reinforce the left and right ends of the center floor panel (10). The left side sill (13) and the right side sill (14) can be connected to extension structures (13a, 14a) that extend diagonally from the left and right front side members (17, 18), respectively.

리어플로어패널(20)는 도 2에 도시한 바와 같이, 좌측 및 우측 리어사이드멤버(21,22), 리어크로스멤버(23)를 포함할 수 있다. 좌측 및 우측 리어사이드멤버(21,22)는 리어플로어(20)의 종방향 굽힘강성을 높이도록 양측에 전후방향으로 길게 연장되고, 좌측 사이드실(13)과 우측 사이드실(14)의 후단부와 연결될 수 있다.The rear floor panel (20) may include left and right rear side members (21, 22) and a rear cross member (23), as illustrated in Fig. 2. The left and right rear side members (21, 22) may be extended in the front-rear direction on both sides to increase the longitudinal bending rigidity of the rear floor (20), and may be connected to the rear ends of the left side sill (13) and the right side sill (14).

인텀플로어패널(30)은 센터플로어패널(10)과 리어플로어패널(20)을 연결하며 그 후방 측에 배터리(40)를 탑재할 수 있는 배터리장착부(50)를 포함한다. 인텀플로어패널(30)은 도 2와 도 7에 도시한 바와 같이, 센터플로어패널(10)로부터 리어플로어패널(20) 쪽으로 갈수록 높아지는 계단형으로 마련될 수 있다. 배터리장착부(50)는 센터플로어패널(10)보다 높고 리어플로어패널(20)보다 낮게 형성되며, 그 위에 차폭방향으로 길게 마련된 배터리(40)가 탑재될 수 있다. The interfloor panel (30) connects the center floor panel (10) and the rear floor panel (20) and includes a battery mounting portion (50) on the rear side of which a battery (40) can be mounted. As shown in FIGS. 2 and 7, the interfloor panel (30) can be formed in a step shape that increases in height from the center floor panel (10) toward the rear floor panel (20). The battery mounting portion (50) is formed higher than the center floor panel (10) and lower than the rear floor panel (20), and a battery (40) that is long in the vehicle width direction can be mounted thereon.

도 2에 도시한 바와 같이, 인텀플로어패널(30)의 양측은 센터플로어패널(10) 양측으로부터 전후방향으로 연장된 좌측 및 우측 사이드실(13,14)과 연결될 수 있다. 인텀플로어패널(30)의 배터리장착부(50) 양측은 좌측 및 우측 리어사이드멤버(21,22)와 연결될 수 있다. As shown in Fig. 2, both sides of the intermediate floor panel (30) can be connected to the left and right side sills (13, 14) extending forward and backward from both sides of the center floor panel (10). Both sides of the battery mounting portion (50) of the intermediate floor panel (30) can be connected to the left and right rear side members (21, 22).

도 2를 참조하면, 배터리장착부(50)가 마련된 인텀플로어패널(30)에는 차체구조물의 비틀림 강성, 종방향 굽힘강성, 횡방향 굽힘강성을 높이면서도 차체구조물을 경량화하기 위한 보강구조물들이 설치된다. 보강구조물들은 인텀크로스멤버(60), 제1 내지 제3보강멤버(71,72,73), 제1 및 제2연장멤버(81,82), 제1 내지 제3배터리지지멤버(91,92,93)를 포함할 수 있다.Referring to FIG. 2, reinforcing structures are installed on an interfloor panel (30) provided with a battery mounting portion (50) to increase the torsional rigidity, longitudinal bending rigidity, and lateral bending rigidity of the body structure while reducing the weight of the body structure. The reinforcing structures may include an intercross member (60), first to third reinforcing members (71, 72, 73), first and second extension members (81, 82), and first to third battery support members (91, 92, 93).

인텀크로스멤버(60)는 인텀플로어패널(30)의 후방 측에서 차폭방향으로 길게 연장되도록 마련되며, 양단이 리어플로어패널(20) 양측의 리어사이드멤버(21,22)에 각각 연결된다. 인텀크로스멤버(60)는 배터리장착부(50)의 후방을 보강해 차체구조물의 횡방향 굽힘강성을 높여준다. 인텀크로스멤버(60)는 도 7에 도시한 바와 같이, 인텀플로어패널(30)의 하면에 결합된 상태에서 배터리장착부(50)에 탑재된 배터리(40)의 후방을 지지함으로써 배터리(40)를 안정적으로 지지할 수 있다. 본 실시 예는 인텀크로스멤버(60)가 인텀플로어패널(30)의 하면(실외 측)에 결합되는 경우를 제시하고 있지만, 인텀크로스멤버(60)는 인텀플로어패널(30)의 상면(실내 측)에 마련될 수도 있다.The intercross member (60) is provided to extend in the width direction from the rear side of the interfloor panel (30), and both ends are connected to the rear side members (21, 22) on both sides of the rear floor panel (20), respectively. The intercross member (60) reinforces the rear of the battery mounting portion (50) to increase the lateral bending rigidity of the body structure. As illustrated in FIG. 7, the intercross member (60) can stably support the battery (40) by supporting the rear of the battery (40) mounted on the battery mounting portion (50) while being connected to the lower surface of the interfloor panel (30). Although this embodiment presents a case where the intercross member (60) is joined to the lower surface (outdoor side) of the interfloor panel (30), the intercross member (60) may also be provided on the upper surface (indoor side) of the interfloor panel (30).

제1보강멤버(71)와 제2보강멤버(72)는 도 2와 도 7에 도시한 바와 같이, 배터리장착부(50)가 위치하는 인텀플로어패널(30) 하면에 결합되며, 인텀크로스멤버(60)의 좌우 양측으로부터 각각 전방을 향하여 연장된다. 제1 및 제2보강멤버(71,72)는 배터리장착부(50)의 하부 양측을 보강해 배터리장착부(50)의 종방향 굽힘강성을 높여준다. As shown in FIGS. 2 and 7, the first reinforcing member (71) and the second reinforcing member (72) are joined to the lower surface of the interfloor panel (30) where the battery mounting portion (50) is located, and extend forward from each of the left and right sides of the intercross member (60). The first and second reinforcing members (71, 72) reinforce the lower sides of the battery mounting portion (50) to increase the longitudinal bending rigidity of the battery mounting portion (50).

제3보강멤버(73)는 도 2와 도 8에 도시한 바와 같이, 제1보강멤버(71)와 제2보강멤버(72) 사이의 인텀플로어패널(30) 중간부분 하면에 결합되며, 인텀크로스멤버(60)의 중간부분으로부터 전방으로 연장된다. 제3보강멤버(73) 역시 배터리장착부(50)의 중간부분을 보강해 배터리장착부(50)의 종방향 굽힘강성을 높여준다. As shown in FIGS. 2 and 8, the third reinforcing member (73) is joined to the lower surface of the middle portion of the intermediate floor panel (30) between the first reinforcing member (71) and the second reinforcing member (72), and extends forward from the middle portion of the intermediate cross member (60). The third reinforcing member (73) also reinforces the middle portion of the battery mounting portion (50) to increase the longitudinal bending rigidity of the battery mounting portion (50).

제1연장멤버(81)와 제2연장멤버(82)는 도 2와 도 7에 도시한 바와 같이, 인텀플로어패널(30) 하면에 결합되며 제1 및 제2보강멤버(71,72)로부터 전방으로 연장되어 센터플로어패널(10)의 좌측 및 우측 센터사이드멤버(11,12)에 연결된다. 즉 제1 및 제2연장멤버(81,82)는 배터리장착부(50) 하부에 마련된 제1 및 제2보강멤버(71,72)의 전단이 센터플로어패널(10)의 좌측 및 우측 센터사이드멤버(11,12)와 연속하여 연결되도록 한다.As shown in FIGS. 2 and 7, the first extension member (81) and the second extension member (82) are joined to the lower surface of the intermediate floor panel (30) and extend forward from the first and second reinforcing members (71, 72) to be connected to the left and right center side members (11, 12) of the center floor panel (10). That is, the first and second extension members (81, 82) ensure that the front ends of the first and second reinforcing members (71, 72) provided below the battery mounting portion (50) are continuously connected to the left and right center side members (11, 12) of the center floor panel (10).

이러한 차체구조물은 도 2와 도 3에 도시한 바와 같이, 좌측 및 우측 프론트사이드멤버(17,18), 좌측 및 우측 센터사이드멤버(11,12), 제1 및 제2연장멤버(81,82), 제1 및 제2보강멤버(71,72)가 종방향으로 연속하여 연결되도록 배치되기 때문에 차체구조물 전체의 종방향 굽힘강성을 높일 수 있고, 배터리장착부(50)의 강성 역시 높일 수 있다. 아울러 차량의 정면 충돌 시 충돌에너지가 좌측 및 우측 프론트사이드멤버(17,18), 좌측 및 우측 센터사이드멤버(11,12), 제1 및 제2연장멤버(81,82), 제1 및 제2보강멤버(71,72)를 통해 인텀크로스멤버(60)로 전달되도록 할 수 있고, 배터리장착부(50)에 이르러 분산되도록 할 수 있다. As illustrated in FIGS. 2 and 3, since the body structure is arranged such that the left and right front side members (17, 18), the left and right center side members (11, 12), the first and second extension members (81, 82), and the first and second reinforcing members (71, 72) are longitudinally and continuously connected, the longitudinal bending rigidity of the entire body structure can be increased, and the rigidity of the battery mounting portion (50) can also be increased. In addition, when the vehicle experiences a frontal collision, the collision energy can be transmitted to the intercross member (60) through the left and right front side members (17, 18), the left and right center side members (11, 12), the first and second extension members (81, 82), and the first and second reinforcing members (71, 72), and can be distributed when it reaches the battery mounting portion (50).

제1배터리지지멤버(91)와 제2배터리지지멤버(92)는 도 2, 도 4, 도 7에 도시한 바와 같이, 제1 및 제2연장멤버(81,82)가 마련된 위치의 인텀플로어패널(30) 및 센터플로어패널(10) 상면에 결합된다. 제1배터리지지멤버(91)와 제2배터리지지멤버(92)는 배터리장착부(50)의 전방 양측으로부터 센터플로어패널(10)의 센터크로스멤버(16c)까지 전후방향으로 각각 연장된다. 제1 및 제2배터리지지멤버(91,92)는 도 7에 도시한 바와 같이, 후단이 배터리(40)의 전방 측 하면을 직접 지지할 수 있도록 배터리장착부(50)와 동일한 높이로 마련되고, 전단이 센터크로스멤버(16c)에 연결된다. 제1 및 제2배터리지지멤버(91,92)는 그 하측에 설치되는 제1 및 제2연장멤버(81,82)와 함께 배터리장착부(50) 전방 측 차체구조물의 종방향 굽힘강성, 횡방향 굽힘강성, 비틀림 강성 을 높여준다. The first battery support member (91) and the second battery support member (92) are joined to the upper surface of the intermediate floor panel (30) and the center floor panel (10) at the positions where the first and second extension members (81, 82) are provided, as shown in FIGS. 2, 4, and 7. The first battery support member (91) and the second battery support member (92) extend in the front-rear direction from both sides of the front of the battery mounting portion (50) to the center cross member (16c) of the center floor panel (10), respectively. As shown in FIG. 7, the first and second battery support members (91, 92) are provided at the same height as the battery mounting portion (50) so that the rear end can directly support the lower surface of the front side of the battery (40), and the front end is connected to the center cross member (16c). The first and second battery support members (91, 92) increase the longitudinal bending rigidity, transverse bending rigidity, and torsional rigidity of the body structure on the front side of the battery mounting portion (50) together with the first and second extension members (81, 82) installed on the lower side thereof.

제3배터리지지멤버(93)는 도 2와 도 8에 도시한 바와 같이, 인텀플로어패널(30)의 상면 중간부분에 결합된다. 제3배터리지지멤버(93)는 제3보강멤버(73)가 위치하는 배터리장착부(50) 전방 측 중간부분으로부터 센터플로어패널(10)의 센터터널(15)까지 연장된다. 제3배터리지지멤버(93) 역시 배터리장착부(50) 전방 측을 센터터널(15)과 연결함으로써 차체구조물의 종방향 굽힘강성을 향상시킨다. The third battery support member (93) is connected to the upper middle portion of the intermediate floor panel (30), as shown in FIG. 2 and FIG. 8. The third battery support member (93) extends from the middle portion of the front side of the battery mounting portion (50) where the third reinforcing member (73) is located to the center tunnel (15) of the center floor panel (10). The third battery support member (93) also improves the longitudinal bending rigidity of the body structure by connecting the front side of the battery mounting portion (50) to the center tunnel (15).

제1 내지 제3배터리지지멤버(91,92,93)는 제1 내지 제3보강멤버(71,72,73), 제1 및 제2연장멤버(81,82)와 함께 인텀크로스멤버(60)와 센터크로스멤버(16c)를 연결하는 역할을 함으로써 배터리장착부(50) 주변의 종방향 굽힘강성, 횡방향 굽힘강성, 비틀림강성을 향상시키고, 전후방향으로 충돌 로드패스를 형성해 차체구조물 전체의 강성을 향상시킨다.The first to third battery support members (91, 92, 93), together with the first to third reinforcing members (71, 72, 73) and the first and second extension members (81, 82), serve to connect the intermediate cross member (60) and the center cross member (16c), thereby improving the longitudinal bending rigidity, transverse bending rigidity, and torsional rigidity around the battery mounting portion (50), and forming a collision load path in the front-rear direction to improve the rigidity of the entire body structure.

도 1, 도 2, 도 7을 참조하면, 배터리(30)를 결속하는 결속구조물(100)은 상부프레임(120), 제1결속프레임(111), 제2결속프레임(112), 제3결속프레임(113), 제4결속프레임(114)을 포함한다. 결속구조물(100)은 배터리장착부(50)에 탑재된 배터리(40)의 상부를 결속한 상태로 인텀크로스멤버(60), 제1 내지 제3배터리지지멤버(91,92,93), 좌측과 우측 리어사이드멤버(21,22)에 각각 체결될 수 있다.Referring to FIGS. 1, 2, and 7, a fastening structure (100) for fastening a battery (30) includes an upper frame (120), a first fastening frame (111), a second fastening frame (112), a third fastening frame (113), and a fourth fastening frame (114). The fastening structure (100) can be fastened to an intermediate cross member (60), the first to third battery support members (91, 92, 93), and left and right rear side members (21, 22) respectively, while fastening the upper portion of a battery (40) mounted on a battery mounting portion (50).

상부프레임(120)은 배터리(40)의 상측 둘레를 따라 곡선형으로 밴딩된 강철바에 의해 마련되고, 배터리(40)의 상측 둘레부분을 보강한다. 제1 내지 제3결속프레임(111,112,113)은 상부프레임(120)의 외측을 결속하는 형태일 수 있고, 용접에 의해 상부프레임(120)에 결합될 수 있다. The upper frame (120) is formed by a steel bar curved along the upper circumference of the battery (40) and reinforces the upper circumference of the battery (40). The first to third fastening frames (111, 112, 113) may be formed to fasten the outer side of the upper frame (120) and may be joined to the upper frame (120) by welding.

제1결속프레임(111)은 배터리(40)의 외측을 전후방향으로 결속한다. 제1결속프레임(111)은 한쪽이 제1배터리지지멤버(91)에 체결되고 다른 쪽이 제1보강멤버(71)가 연결된 위치의 인텀크로스멤버(60)에 체결된다. The first fastening frame (111) fastens the outer side of the battery (40) in the front-back direction. One end of the first fastening frame (111) is fastened to the first battery support member (91), and the other end is fastened to the intercross member (60) at the position where the first reinforcing member (71) is connected.

제2결속프레임(112)은 제1결속프레임(111)과 마찬가지로 배터리(40)의 외측을 전후방향으로 결속한다. 제2결속프레임(112)은 한쪽이 제2배터리지지멤버(92)에 체결되고 다른 쪽이 제2보강멤버(72)가 연결된 위치의 인텀크로스멤버(60)에 체결된다.The second fastening frame (112) fastens the outer side of the battery (40) in the forward and backward direction, similar to the first fastening frame (111). One end of the second fastening frame (112) is fastened to the second battery support member (92), and the other end is fastened to the intercross member (60) at the location where the second reinforcing member (72) is connected.

제3결속프레임(113)은 배터리(40)의 상측에서 제1 및 제2결속프레임(111,112)과 교차하는 형태로 배터리(40) 외측을 차폭방향으로 결속한다. 제3결속프레임(113)은 양단이 좌측 리어사이드멤버(21) 및 우측 리어사이드멤버(22)에 각각 체결된다. 제3결속프레임(113)은 제1 및 제2결속프레임(111,112)과 교차하는 부분이 제1 및 제2결속프레임(111,112)에 용접될 수 있다.The third fastening frame (113) fastens the outer side of the battery (40) in the width direction in a form that intersects the first and second fastening frames (111, 112) on the upper side of the battery (40). The third fastening frame (113) is fastened at both ends to the left rear side member (21) and the right rear side member (22), respectively. The portion of the third fastening frame (113) that intersects the first and second fastening frames (111, 112) can be welded to the first and second fastening frames (111, 112).

제4결속프레임(114)은 상부가 상부프레임(120)의 전방 중간부분에 용접된 상태에서 제3배터리지지멤버(93) 쪽으로 연장된 후 제3배터리지지멤버(93)에 체결될 수 있다. The fourth fastening frame (114) can be extended toward the third battery support member (93) with the upper part welded to the front middle part of the upper frame (120) and then fastened to the third battery support member (93).

이러한 결속구조물(100)은 제1결속프레임(111), 제2결속프레임(112), 제4결속프레임(114)이 배터리(40)의 외측을 전후방향으로 결속하고, 제3결속프레임(113)이 배터리(40) 외측을 차폭방향으로 결속하기 때문에 배터리(40)를 배터리장착부(50)에 견고하게 고정시킬 수 있다. 인텀크로멤버(60), 제1 내지 제3배터리지지멤버(91,92,93), 좌측 및 우측 리어사이드멤버(21,22)에는 결속구조물(100)이 체결되는 부분을 보강하는 보강부재들이 설치될 수 있다.Since the first fastening frame (111), the second fastening frame (112), and the fourth fastening frame (114) fasten the outer side of the battery (40) in the front-rear direction and the third fastening frame (113) fastens the outer side of the battery (40) in the width direction, the battery (40) can be firmly fixed to the battery mounting portion (50). Reinforcing members for reinforcing the portion where the fastening structure (100) is fastened can be installed in the interlock member (60), the first to third battery support members (91, 92, 93), and the left and right rear side members (21, 22).

도 5를 참조하면, 제1결속프레임(111)은 하측의 제1보강멤버(71)와 함께 배터리(40)를 환형으로 결속하고, 제2결속프레임(112)은 하측의 제2보강멤버(72)와 함께 배터리(40)을 환형으로 결속하며, 제4결속프레임(114) 역시 하측의 제3보강멤버(73)와 함께 배터리(40)를 환형으로 결속한다. 이러한 결속구조물(100)은 배터리(100)를 견고하게 결속하는 기능 뿐 아니라, 차체구조물의 종방향 굽힘강성, 횡방향 굽힘강성, 비틀림 강성을 높이는 기능도 한다. 배터리(40)와 결속구조물(100)이 강성을 높이는 구조체의 역할을 하기 때문에 차체구조물의 전체적인 강성을 향상시킬 수 있다. Referring to FIG. 5, the first fastening frame (111) annularly fastens the battery (40) together with the first reinforcing member (71) on the lower side, the second fastening frame (112) annularly fastens the battery (40) together with the second reinforcing member (72) on the lower side, and the fourth fastening frame (114) annularly fastens the battery (40) together with the third reinforcing member (73) on the lower side. This fastening structure (100) not only has the function of firmly fastening the battery (100), but also has the function of increasing the longitudinal bending rigidity, the transverse bending rigidity, and the torsional rigidity of the body structure. Since the battery (40) and the fastening structure (100) serve as structures that increase rigidity, the overall rigidity of the body structure can be improved.

10: 센터플로어패널, 11: 좌측 센터사이드멤버,
12: 우측 센터사이드멤버, 15: 센터터널,
16a,16b,16c: 센터크로스멤버, 20: 리어플로어패널,
21: 좌측 리어사이드멤버, 22: 우측 리어사이드멤버,
30: 인텀플로어패널, 40: 배터리,
50: 배터리장착부, 60: 인텀크로스멤버,
71: 제1보강멤버, 72: 제2보강멤버,
73: 제3보강멤버, 81: 제1연장멤버,
82: 제2연장멤버, 91: 제1배터리지지멤버,
92: 제2배터리지지멤버, 93: 제3배터리지지멤버,
100: 결속구조물, 111: 제1결속프레임,
112: 제2결속프레임, 113: 제3결속프레임,
114: 제4결속프레임, 120: 상부프레임.10: Center floor panel, 11: Left center side member,
12: Right center side member, 15: Center tunnel,
16a, 16b, 16c: Center cross member, 20: Rear floor panel,
21: Left rear side member, 22: Right rear side member,
30: Interfloor panel, 40: Battery,
50: Battery mounting part, 60: Intercross member,
71: 1st reinforcement member, 72: 2nd reinforcement member,
73: 3rd reinforcement member, 81: 1st extension member,
82: 2nd extension member, 91: 1st battery support member,
92: 2nd Battery Support Member, 93: 3rd Battery Support Member,
100: binding structure, 111: first binding frame,
112: 2nd binding frame, 113: 3rd binding frame,
114: 4th binding frame, 120: Upper frame.

Claims (11)

센터터널, 센터크로스멤버, 좌측 및 우측 센터사이드멤버를 갖춘 센터플로어패널;
상기 센터플로어패널과 리어플로어패널을 연결하며 위에 배터리장착부가 마련된 인텀플로어패널;
상기 인텀플로어패널의 후방 측에 마련되며 상기 배터리장착부의 후방을 보강하는 인텀크로스멤버; 및
상기 인텀플로어패널에 마련되고 상기 인텀크로스멤버로부터 전방으로 연장되며 상기 배터리장착부를 보강하는 하나 이상의 보강멤버;를 포함하고,
상기 보강멤버는 상기 인텀크로스멤버 양측으로부터 각각 전방으로 연장되며 상기 배터리장착부 양측을 각각 보강하는 제1 및 제2보강멤버를 포함하고,
상기 인텀플로어패널 하면에 마련되고 상기 제1 및 제2보강멤버로부터 전방으로 연장되어 상기 좌측 및 우측 센터사이드멤버에 연결되는 제1 및 제2연장멤버;
상기 제1 및 제2연장멤버가 마련된 위치의 상기 인텀플로어패널 및 상기 센터플로어패널 상면에 결합되며 상기 배터리장착부 전방 양측으로부터 상기 센터크로스멤버까지 전후방향으로 각각 연장된 제1 및 제2배터리지지멤버; 및
상기 배터리장착부에 탑재된 배터리의 상부를 결속한 상태로 상기 인텀크로스멤버와 상기 제1 및 제2배터리지지멤버에 체결되는 결속구조물을 더 포함하고,
상기 결속구조물은,
상기 배터리를 전후방향으로 결속하며 한쪽이 상기 제1배터리지지멤버에 체결되고 다른 쪽이 제1보강멤버가 연결된 위치의 상기 인텀크로스멤버에 체결되는 제1결속프레임; 및
상기 배터리를 전후방향으로 결속하며 한쪽이 상기 제2배터리지지멤버에 체결되고 다른 쪽이 제1보강멤버가 연결된 위치의 상기 인텀크로스멤버에 체결되는 제2결속프레임;을 포함하는 차체구조물.Center floor panel with center tunnel, center crossmember, left and right center side members;
Intermediate floor panel connecting the center floor panel and the rear floor panel and having a battery mounting section provided above;
An intercross member provided on the rear side of the above interfloor panel and reinforcing the rear of the battery mounting portion; and
Including one or more reinforcing members provided on the above intermediate floor panel and extending forward from the above intermediate cross member and reinforcing the battery mounting portion;
The above reinforcing members include first and second reinforcing members that extend forward from both sides of the intercross member and reinforce both sides of the battery mounting portion, respectively.
First and second extension members provided on the lower surface of the above intermediate floor panel and extending forward from the first and second reinforcing members and connected to the left and right center side members;
First and second battery support members, which are connected to the upper surface of the intermediate floor panel and the center floor panel at the positions where the first and second extension members are provided, and which extend forward and backward from both sides in front of the battery mounting portion to the center cross member, respectively; and
It further includes a fastening structure that is fastened to the intercross member and the first and second battery support members while fastening the upper part of the battery mounted on the battery mounting portion.
The above bonding structure is,
A first fastening frame that fastens the battery in the front-back direction, one end of which is fastened to the first battery support member and the other end of which is fastened to the intercross member at the position where the first reinforcing member is connected; and
A body structure including a second fastening frame that fastens the battery in the front-rear direction, one end of which is fastened to the second battery support member and the other end of which is fastened to the intermediate cross member at a position where the first reinforcing member is connected. 삭제delete 제1항에 있어서,
상기 보강멤버는 상기 제1 및 제2보강멤버 사이의 상기 인텀플로어패널에 마련되고 상기 인텀크로스멤버로부터 전방으로 연장되며 상기 배터리장착부의 중간부분을 보강하는 제3보강멤버를 더 포함하는 차체구조물.In the first paragraph,
A body structure further comprising a third reinforcing member that is provided on the intermediate floor panel between the first and second reinforcing members and extends forward from the intermediate cross member and reinforces the middle portion of the battery mounting portion. 삭제delete 제3항에 있어서,

상기 인텀플로어패널 상면에 결합되며 상기 제3보강멤버가 위치하는 상기 배터리장착부 중간부분 전방위치으로부터 상기 센터터널까지 연장된 제3배터리지지멤버;를 더 포함하는 차체구조물.In the third paragraph,

A body structure further comprising a third battery support member, which is coupled to the upper surface of the intermediate floor panel and extends from the front portion of the middle portion of the battery mounting section where the third reinforcing member is located to the center tunnel. 삭제delete 삭제delete 제5항에 있어서,
상기 결속구조물은 상기 배터리를 차폭방향으로 결속하며 양단이 상기 리어플로어패널 양측에 마련된 리어사이드멤버에 체결되는 제3결속프레임을 더 포함하는 차체구조물.In paragraph 5,
The above-mentioned fastening structure is a body structure further including a third fastening frame that fastens the battery in the width direction and has both ends fastened to rear side members provided on both sides of the rear floor panel. 제8항에 있어서,
상기 결속구조물은,
상기 배터리 상측을 보강하며 상기 제1 내지 제3결속프레임에 의해 결속되는 상부프레임; 및
상기 상부프레임으로부터 연장되어 상기 제3배터리지지멤버에 체결되는 제4결속프레임을 더 포함하는 차체구조물.In Article 8,
The above bonding structure is,
An upper frame that reinforces the upper side of the battery and is fastened by the first to third fastening frames; and
A body structure further comprising a fourth fastening frame extending from the upper frame and fastened to the third battery support member. 제1항에 있어서,
상기 인텀크로스멤버는 양단이 상기 리어플로어패널 양측의 리어사이드멤버에 각각 연결되는 차체구조물.In the first paragraph,
The above intermediate cross member is a body structure in which both ends are connected to the rear side members on both sides of the rear floor panel. 제1항, 제3항, 제5항, 제8항 내지 제10항 중 어느 한 항의 차체구조물을 포함하는 차량.
A vehicle comprising a body structure according to any one of claims 1, 3, 5, 8 to 10.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007320341A (en) * 2006-05-30 2007-12-13 Toyota Motor Corp Vehicle floor structure
KR101510052B1 (en) * 2014-04-16 2015-04-07 현대자동차주식회사 Vehicle having body for high voltage battery

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0781432A (en) * 1993-09-20 1995-03-28 Nissan Motor Co Ltd Battery fixing structure for electric vehicles
KR102375169B1 (en) * 2017-06-28 2022-03-16 현대자동차주식회사 Body structure for electric vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007320341A (en) * 2006-05-30 2007-12-13 Toyota Motor Corp Vehicle floor structure
KR101510052B1 (en) * 2014-04-16 2015-04-07 현대자동차주식회사 Vehicle having body for high voltage battery

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