WO2016062229A1 - 一种汽车电池保护结构 - Google Patents

一种汽车电池保护结构 Download PDF

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Publication number
WO2016062229A1
WO2016062229A1 PCT/CN2015/092194 CN2015092194W WO2016062229A1 WO 2016062229 A1 WO2016062229 A1 WO 2016062229A1 CN 2015092194 W CN2015092194 W CN 2015092194W WO 2016062229 A1 WO2016062229 A1 WO 2016062229A1
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WO
WIPO (PCT)
Prior art keywords
protection structure
middle passage
battery protection
reinforcing plate
floor panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/092194
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English (en)
French (fr)
Inventor
李志明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhu Power Technology Research Co Ltd
Chery Automobile Co Ltd
Original Assignee
Wuhu Power Technology Research Co Ltd
Chery Automobile Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhu Power Technology Research Co Ltd, Chery Automobile Co Ltd filed Critical Wuhu Power Technology Research Co Ltd
Priority to US15/515,285 priority Critical patent/US9944162B2/en
Publication of WO2016062229A1 publication Critical patent/WO2016062229A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
    • B62D21/157—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body for side impacts
    • 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
    • B62D25/02—Side panels
    • B62D25/025—Side sills thereof
    • 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
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded
    • 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
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D27/00—Connections between superstructure or understructure sub-units
    • B62D27/02—Connections between superstructure or understructure sub-units rigid

Definitions

  • the invention relates to the field of automobiles, and in particular to a vehicle battery protection structure.
  • a longitudinally penetrating middle passage is generally arranged in the middle of the bottom of the vehicle body, and on the left side of the middle passage, the door sill of the left side door of the automobile is sequentially connected with the floor panel and the middle passage on the left side, and the left side seat is connected.
  • One end of the chair beam assembly is connected to the left end of the floor panel on the left side, and the other end is connected to the middle passage; the structure on the right side of the middle passage is symmetrical to the left side, and the battery is generally disposed below the middle passage; when the vehicle body is subjected to a lateral collision, the threshold is passed The impact generated by the collision is transmitted to the floor panel connected thereto, and is transmitted to other positions through the middle passage to perform the unloading load, thereby preventing impact damage to the battery.
  • the embodiment of the invention provides a vehicle battery protection structure.
  • the technical solution is as follows:
  • a vehicle battery protection structure includes: a middle passage disposed in the middle of the vehicle body bottom and longitudinally penetrating the vehicle body; two protection components symmetrically disposed on the left and right sides of the middle passage, each protection The assembly includes a door sill, a seat beam assembly, a floor panel, and a longitudinal beam, the seat beam assembly is connected at one end to the upper portion of the sill, and the other end is connected to the upper end of the middle passage, and the floor panel is at one end Connecting the lower portion of the sill and connecting the other end to the lower end of the middle passage, A stringer is disposed on a lower surface of the floor panel, and the stringer extends longitudinally through the vehicle body, and a car battery pack is disposed below the middle passage.
  • the seat beam assembly includes: an outer reinforcing plate, a beam body and an inner reinforcing plate which are sequentially connected, the outer reinforcing plate is connected to the door sill, and the inner reinforcing plate is connected to the upper end of the middle channel And the height of the outer reinforcing plate, the beam body and the inner reinforcing plate are different.
  • the automobile battery protection structure further comprises a frame beam, the frame beam is located under the automobile battery pack, and the two ends of the frame beam are respectively connected with the longitudinal beams of the two protection components.
  • the longitudinal beam is an inverted zigzag longitudinal beam, and an upper end of the inverted zigzag longitudinal beam is fixedly connected with a lower surface of the floor panel, and a lower end of the inverted zigzag longitudinal beam is connected to one end of the frame beam .
  • the automotive battery protection structure further includes a middle channel reinforcement plate disposed at a bottom of the intermediate passage and fixedly coupled to the intermediate passage.
  • a lower end of the middle passage is provided with a flange, and the floor panel is overlapped with the flange.
  • the seat beam assembly, the floor panel and the longitudinal beam are all alloy materials.
  • the invention connects the seat beam assembly and the floor panel respectively between the sill and the middle passage.
  • the impact generated by the collision is decomposed by the sill to the seat beam assembly and the floor panel respectively.
  • Passing while the seat beam assembly and the floor panel itself absorb a small amount of impact, the remaining impact can quickly transfer and remove the load from two different ways, thereby reducing the risk of large deformation of the floor panel, so as to avoid
  • the battery contacts the battery and damages the battery; in addition, the sill, the seat beam assembly, the floor panel, the middle channel form the frame structure, and the reinforcement of the longitudinal beam, the rigidity and strength of the entire protection structure are greatly improved, further reducing the overall protection structure The risk of deformation and damage to the battery.
  • FIG. 1 is a schematic structural view of a left half of a cross section of a vehicle battery protection structure according to an embodiment of the present invention
  • an embodiment of the present invention provides a vehicle battery protection structure.
  • the vehicle battery protection structure includes: a middle passage 3 disposed in the middle of the vehicle body bottom and longitudinally penetrating the vehicle body, and two left and right sides of the middle passage 3
  • Two protective components arranged side by side and symmetrically, each protection component comprising a door sill 1 , a seat beam assembly 2 , a floor panel 4 , a longitudinal beam 5 , an end of the seat beam assembly 2 and an upper portion of the door sill 1 Connecting, the other end is connected to the upper end of the middle channel 3, one end of the floor panel 4 is connected to the lower part of the door sill 1, the other end is connected to the lower end of the middle channel 3, and the longitudinal beam 5 is disposed on the floor panel 4
  • the lower surface of the longitudinal beam 5 extends longitudinally through the vehicle body, and the vehicle battery pack 6 is disposed below the intermediate passage 3.
  • the sill 1 is disposed on the side of the vehicle body and extends along the front and rear direction of the vehicle body, and is connected to the floor panel 4 and the seat beam assembly 2 by spot welding, and the longitudinal beam 5 is welded by spot welding and CO2 gas.
  • the chair beam assembly 2 and the floor panel 4 are joined to form a frame structure;
  • FIG. 1 is a cross-sectional left half structure of the present invention, and the structure of the right half is symmetrical with the left half.
  • the present invention connects the seat beam assembly 2 and the floor panel 4 between the sill 1 and the middle passage 3 respectively.
  • the impact F generated by the collision passes through the sill 1 to the seat beam assembly 2 and respectively.
  • the floor panel 4 is decomposed and transmitted in two ways, and is transmitted to the other components connected to the middle passage 3 through the middle passage 3, which increases the transmission path of the impact compared with the prior art, so that the impact generated by the collision can be quickly transmitted through multiple channels, and has been reached.
  • the purpose of removing the load is to reduce the risk of large deformation of the floor panel 4;
  • the seat beam assembly 2 and the floor panel 4 itself will absorb a small amount of impact, thus making it necessary
  • the amount of impact transmitted by the decomposition is reduced, which helps the residual impact to quickly transfer and remove the load from two different ways, thereby reducing the risk of large deformation of the floor panel 4, thereby preventing the battery from being damaged by contact with the battery. ;
  • the sill 1, the seat beam assembly 2, the floor panel 4, the middle passage 3 form a frame structure, and the reinforcement of the longitudinal beam 5, so that the rigidity and strength of the entire protection structure are greatly improved, thereby further reducing the deformation of the entire protection structure. And the risk of damaging the battery.
  • an embodiment of the present invention provides a vehicle battery protection structure.
  • the vehicle battery protection structure includes: a middle passage 3 disposed in the middle of the vehicle body bottom and longitudinally penetrating the vehicle body, and two left and right sides of the middle passage 3
  • Two protective components arranged side by side and symmetrically, each protection component comprising a door sill 1 , a seat beam assembly 2 , a floor panel 4 , a longitudinal beam 5 , an end of the seat beam assembly 2 and an upper portion of the door sill 1 Connecting, the other end is connected to the upper end of the middle channel 3, one end of the floor panel 4 is connected to the lower part of the door sill 1, the other end is connected to the lower end of the middle channel 3, and the longitudinal beam 5 is disposed on the floor panel 4
  • the lower surface of the longitudinal beam 5 extends longitudinally through the vehicle body, and the vehicle battery pack 6 is disposed below the intermediate passage 3.
  • the seat beam assembly 2 includes: an outer reinforcing plate 21 , a beam body 22 and an inner reinforcing plate 23 which are sequentially connected, and the outer reinforcing plate 21 is connected to the threshold 1 .
  • the inner reinforcing plate 23 is connected to the upper end of the middle passage 3, and the heights of the outer reinforcing plate 21, the beam body 22 and the inner reinforcing plate 23 are different.
  • the outer reinforcing plate 21 has a U-shaped structure, one side is respectively connected with the beam body 22 and the sill 1 , and the other side is also connected with the floor panel 4 .
  • the outer reinforcing plate 21 first absorbs the part.
  • the load is absorbed and transmitted by the beam body 22 and the inner reinforcing plate 23, and the seat beam assembly 2 is decomposed into outer reinforcing plates 21, beam bodies 22 and inner reinforcing plates 23 having different heights, so as to facilitate the impact of each part.
  • the beam body 22 Absorption and transmission; and, in general, the ability to design the impact that the beam body 22 can withstand, the ability of the floor panel 4 to withstand the impact of the longitudinal beam 5, and the frame beam 7 and the longitudinal beam 5 can withstand
  • the sum of the impact capabilities is greater than the ability of the outer reinforcing plate 21 and the floor panel 4 to withstand the impact of the impact, that is, when the vehicle has a lateral collision, the outer reinforcing plate 21 can be greatly deformed, thereby facilitating the impact.
  • the absorption is carried out, and the beam body 22, the inner reinforcing plate 23, the floor panel 4, the longitudinal beam 5, and the frame beam 7 are preferably slightly deformed, and the focus is on transmitting the impact, but the seat beam assembly 2 is divided into two parts. The strength of the part should not be too weak, otherwise it will break easily.
  • the car battery protection structure further comprises a frame cross member 7 , the frame cross member 7 is located below the car battery pack 6 , and the two ends of the frame cross member 7 are respectively perpendicular to the two protection components.
  • Beam 5 is connected.
  • the frame beam 7 is arranged under the automobile battery pack 6, on the one hand, the vehicle battery pack 6 can be fixed, and on the other hand, the transmission path of the impact can be increased, that is, the floor panel 4, the longitudinal beam 5, and the frame beam 7 are transmitted.
  • the frame cross member 7 can also be connected to other components of the vehicle body to facilitate the transmission of impact to different components and to avoid damage to the battery.
  • the longitudinal beam 5 is an inverted zigzag longitudinal beam 5 , and the upper end of the inverted zigzag longitudinal beam 5 is fixedly connected with the lower surface of the floor panel 4 , and the inverted figure is vertical
  • the lower end of the beam 5 is connected to one end of the frame cross member 7.
  • the structure of the inverted girder stringer 5 is more stable.
  • the car battery protection structure further preferably includes a middle channel reinforcing plate 8 disposed at the bottom of the middle channel 3 and fixedly connected to the middle channel 3.
  • the lower end of the middle passage 3 is provided with a flange, and the floor panel 4 is overlapped with the flange.
  • the middle passage 3 is generally a figure-shaped structure, and the lower end thereof is two flanges projecting to both sides for respectively overlapping with the corresponding floor panel 4, and the structure is stable; and the middle flange is disposed between the two flanges.
  • the channel reinforcing plate 8, the middle channel reinforcing plate 8 is also a figure-shaped structure, which is closely matched with the middle channel 3, so that the strength and rigidity of the entire middle channel 3 are significantly improved, and the structure is more stable, when the vehicle collides laterally.
  • the inward impact load in the width direction of the vehicle body is transmitted to the middle passage 3, and the impact load can be carried by the compressive strength to transmit the impact energy of the residual collision well, and the deformation in the width direction of the vehicle body is avoided as much as possible. Occurs, the battery under the protection channel 3 is not affected by the side deformation.
  • the seat beam assembly 2, the floor panel 4, and the longitudinal beam 5 are all alloy materials.
  • the collision load F applied in the lateral collision causes a large deformation of the side of the vehicle body toward the inner side in the width direction of the vehicle body. Therefore, in order to protect the battery, it is possible to take measures such as reducing the size of the battery. Small enough to avoid interference with the side of the body and the battery. However, reducing the size of the battery causes the battery capacity to decrease, so the cruising distance of the car is reduced. In contrast, according to the practice of the present invention, the amount of deformation of the side portion of the vehicle body can be reduced as described above. Therefore, the size of the battery can be increased to ensure sufficient battery capacity.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

一种汽车电池保护结构，包括：中通道（3）、位于中通道（3）左右两侧且对称设置的两个保护组件，每个保护组件包括车门的门槛（1）、座椅横梁总成（2）、地板面板（4）、纵梁（5），座椅横梁总成（2）一端与门槛（1）上部连接，另一端与中通道（3）上端连接，地板面板（4）一端与门槛（1）下部连接，另一端与中通道（3）下端连接，纵梁（5）设置在地板面板（4）的下表面，且纵梁（5）纵向贯穿车身，汽车电池组（6）设置在中通道（3）下方。通过在门槛（1）与中通道（3）之间分别连接座椅横梁总成（2）、地板面板（4），碰撞产生的冲击经门槛（1）分别向座椅横梁总成（2）和地板面板（4）分解传递，降低地板面板（4）大幅度变形的风险；门槛（1）、座椅横梁总成（2）、地板面板（4）、中通道（3）形成框架结构，及纵梁（5）的加固作用，使得整个保护结构刚度提升。

Description

一种汽车电池保护结构 技术领域
本发明涉及汽车领域，特别涉及一种汽车电池保护结构。
背景技术
在汽车行业节能环保的大趋势下，电动车承载着汽车行业的未来吸引着客户的目光，安全问题依然是人们关注的重点，尤其是在车身受到侧向碰撞时，对电池的保护尤为重要。
现有电动汽车中，一般在车身底部中间设置有纵向贯穿的中通道，在中通道左侧，汽车左侧车门的门槛与左侧的地板面板、中通道之间顺次连接，左侧的座椅横梁总成一端与左侧的地板面板左端连接，另一端与中通道连接；中通道右侧的结构与左侧对称，电池一般设置在中通道下方；当车身受到侧向碰撞时，通过门槛将碰撞产生的冲击传递至与其连接的地板面板，并通过中通道传递至其他位置进行卸除载荷，从而防止对电池产生冲击损坏。
在实现本发明的过程中，发明人发现现有技术至少存在以下问题：
当车辆发生侧向碰撞时，碰撞产生的巨大冲击会迅速且大部分传递至地板面板，导致地板面板瞬时承受巨大冲击却不能及时传递及卸除载荷，容易产生地板面板大幅度变形并与电池相接触，从而极易将载荷传递至电池并使其受损。
发明内容
为了解决现有技术碰撞产生冲击易导致电池受损的问题，本发明实施例提供了一种汽车电池保护结构。所述技术方案如下：
一种汽车电池保护结构，所述汽车电池保护结构包括：设置在车身底部中间且纵向贯穿所述车身的中通道、位于所述中通道左右两侧且对称设置的两个保护组件，每个保护组件包括车门的门槛、座椅横梁总成、地板面板、纵梁，所述座椅横梁总成一端与所述门槛上部连接，另一端与所述中通道上端连接，所述地板面板一端与所述门槛下部连接，另一端与所述中通道下端连接，所述 纵梁设置在所述地板面板的下表面，且所述纵梁纵向贯穿所述车身，汽车电池组设置在所述中通道下方。
具体地，所述座椅横梁总成包括：顺次连接的外加强板、横梁本体和内加强板，所述外加强板与所述门槛连接，所述内加强板与所述中通道上端连接，且所述外加强板、所述横梁本体和所述内加强板高度各不相同。
作为优选，所述汽车电池保护结构还包括框架横梁，所述框架横梁位于所述汽车电池组下方，所述框架横梁两端分别与两个保护组件的纵梁连接。
进一步地，所述纵梁为倒几字形纵梁，所述倒几字形纵梁的上端与所述地板面板的下表面固定连接，所述倒几字形纵梁的下端与所述框架横梁一端连接。
作为优选，所述汽车电池保护结构还包括中通道加强板，所述中通道加强板设置在所述中通道底部，且与所述中通道固定连接。
进一步地，所述中通道下端设置有凸缘，所述地板面板与所述凸缘搭接。
作为优选，所述座椅横梁总成、所述地板面板、所述纵梁均为合金材料。
本发明实施例提供的技术方案带来的有益效果是：
本发明通过在门槛与中通道之间分别连接座椅横梁总成、地板面板，当车辆发生侧向碰撞时，碰撞产生的冲击经门槛分别向座椅横梁总成和及地板面板两个途径分解传递，而座椅横梁总成和地板面板本身会吸收少部分冲击，剩余的冲击能够快速从两个不同途径向外部传递并卸除载荷，从而降低地板面板大幅度变形的风险，使其避免与电池相接触而损坏电池；另外，门槛、座椅横梁总成、地板面板、中通道形成框架结构，及纵梁的加固作用，使得整个保护结构刚度和强度大幅度提升，进一步降低整个保护结构因产生变形而损坏电池的风险。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的汽车电池保护结构的横截面左半部分结构示意图；
其中：1 门槛,
      2 座椅横梁总成,21外加强板,22横梁本体,23内加强板，
      3 中通道,
      4 地板面板,
      5 纵梁，
      6 汽车电池组，
      7 框架横梁，
      8 中通道加强板。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
实施例1
如图1所示，本发明实施例提供一种汽车电池保护结构，所述汽车电池保护结构包括：设置在车身底部中间且纵向贯穿所述车身的中通道3、位于所述中通道3左右两侧且对称设置的两个保护组件，每个保护组件包括车门的门槛1、座椅横梁总成2、地板面板4、纵梁5，所述座椅横梁总成2一端与所述门槛1上部连接，另一端与所述中通道3上端连接，所述地板面板4一端与所述门槛1下部连接，另一端与所述中通道3下端连接，所述纵梁5设置在所述地板面板4的下表面，且所述纵梁5纵向贯穿所述车身，汽车电池组6设置在所述中通道3下方。
其中，门槛1设置在车身侧部，沿着车身的前后方向延伸，与地板面板4和座椅横梁总成2通过点焊方式连接，纵梁5通过点焊、CO2气体保护焊的方式与座椅横梁总成2及地板面板4连接，形成框架结构；图1为本发明的横截面左半部分结构，右半部分的结构与左半部分对称。
本发明通过在门槛1与中通道3之间分别连接座椅横梁总成2、地板面板4，当车辆发生侧向碰撞时，碰撞产生的冲击F经门槛1分别向座椅横梁总成2和及地板面板4两个途径分解传递，并经过中通道3传递至其它与中通道3连接的部件，较现有技术增加了冲击的传递途径，使得碰撞产生的冲击能够多渠道快速传递，已达到卸除载荷的目的，降低地板面板4发生大幅度变形的风险；
而座椅横梁总成2和地板面板4本身也会吸收少部分冲击，如此使得需要 分解传递的冲击量得以减少，有助于剩余的冲击能够快速从两个不同途径向外部传递并卸除载荷，从而降低地板面板4大幅度变形的风险，使其避免与电池相接触而损坏电池；
另外，门槛1、座椅横梁总成2、地板面板4、中通道3形成框架结构，及纵梁5的加固作用，使得整个保护结构刚度和强度大幅度提升，进一步降低整个保护结构因产生变形而损坏电池的风险。
实施例2
如图1所示，本发明实施例提供一种汽车电池保护结构，所述汽车电池保护结构包括：设置在车身底部中间且纵向贯穿所述车身的中通道3、位于所述中通道3左右两侧且对称设置的两个保护组件，每个保护组件包括车门的门槛1、座椅横梁总成2、地板面板4、纵梁5，所述座椅横梁总成2一端与所述门槛1上部连接，另一端与所述中通道3上端连接，所述地板面板4一端与所述门槛1下部连接，另一端与所述中通道3下端连接，所述纵梁5设置在所述地板面板4的下表面，且所述纵梁5纵向贯穿所述车身，汽车电池组6设置在所述中通道3下方。
如图1所示，具体地，所述座椅横梁总成2包括：顺次连接的外加强板21、横梁本体22和内加强板23，所述外加强板21与所述门槛1连接，所述内加强板23与所述中通道3上端连接，且所述外加强板21、所述横梁本体22和所述内加强板23高度各不相同。
其中，外加强板21为U型结构，一侧分别与横梁本体22、门槛1连接，另一侧还与地板面板4连接，当门槛1将冲击传递过来时，由外加强板21首先吸收部分载荷，其余部分经横梁本体22和内加强板23吸收并传递，将座椅横梁总成2分解成高度各不相同的外加强板21、横梁本体22和内加强板23，便于各部分对冲击进行吸收及传递；而且，一般设计横梁本体22所能承受的冲击的能力、地板面板4与纵梁5搭接处所能承受的冲击的能力、框架横梁7与纵梁5搭接处所能承受的冲击的能力之和，要大于外加强板21和地板面板4的搭接处所能承受的冲击的能力，即当车辆发生侧向碰撞时，外加强板21可以发生较大变形，从而便于对冲击进行吸收，而横梁本体22、内加强板23、地板面板4、纵梁5、框架横梁7则最好发生微量形变，重点在与对冲击进行传递即可，但座椅横梁总成2各部分部件的强度也不能太弱，否则容易折断。
如图1所示，作为优选，所述汽车电池保护结构还包括框架横梁7，所述框架横梁7位于所述汽车电池组6下方，所述框架横梁7两端分别与两个保护组件的纵梁5连接。其中，汽车电池组6下方设置框架横梁7，一方面可以对汽车电池组6进行固定，另一方面，还可以增加冲击的传递路径，即通过地板面板4、纵梁5、框架横梁7，传递至另一个保护组件的纵梁5，框架横梁7还可以与车身的其他部件连接，便于对冲击传递至不同部件，避免对电池进行损坏。
如图1所示，进一步地，所述纵梁5为倒几字形纵梁5，所述倒几字形纵梁5的上端与所述地板面板4的下表面固定连接，所述倒几字形纵梁5的下端与所述框架横梁7一端连接。倒几字形纵梁5结构结构更为稳固。
如图1所示，作为优选，所述汽车电池保护结构还包括中通道加强板8，所述中通道加强板8设置在所述中通道3底部，且与所述中通道3固定连接。
如图1所示，进一步地，所述中通道3下端设置有凸缘，所述地板面板4与所述凸缘搭接。
其中，中通道3一般为几字形结构，其下端为两个向两侧伸出的凸缘，分别用于与对应的地板面板4搭接，结构稳定；而在两个凸缘之间设置中通道加强板8，中通道加强板8也为几字形结构，其与中通道3紧密配合，从而使得整个中通道3的强度和刚度显著提高，且结构更为稳固，当车辆发生侧向碰撞时，车身宽度方向上向内的碰撞载荷传递至中通道3，可以依靠其抗压强度承载部分碰撞载荷并将剩余碰撞产生的冲击能良好的传递出去，尽量避免此处车身宽度方向上的变形的发生，保护中通道3下方的电池不受侧部变形影响。
作为优选，所述座椅横梁总成2、所述地板面板4、所述纵梁5均为合金材料。
实验表明，如果取消座椅横梁总成2，在侧向碰撞施加的碰撞载荷F导致车身侧部朝向车身宽度方向上的内侧的大幅度变形，因此为了保护电池，可以采取如将电池的尺寸减小至能够避免车身侧部与电池干涉的措施。然而，减小电池的尺寸会导致电池容量减小，因此汽车的巡航距离减小。相反，根据本发明的实施，能够如上所述减小车身侧部的变形量。因此，可以使电池的尺寸增大，保证达到足够的电池容量。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的 精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (7)

  1. 一种汽车电池保护结构，其特征在于，所述汽车电池保护结构包括：设置在车身底部中间且纵向贯穿所述车身的中通道、位于所述中通道左右两侧且对称设置的两个保护组件，每个保护组件包括车门的门槛、座椅横梁总成、地板面板、纵梁，所述座椅横梁总成一端与所述门槛上部连接，另一端与所述中通道上端连接，所述地板面板一端与所述门槛下部连接，另一端与所述中通道下端连接，所述纵梁设置在所述地板面板的下表面，且所述纵梁纵向贯穿所述车身，汽车电池组设置在所述中通道下方。
  2. 根据权利要求1所述的汽车电池保护结构，其特征在于，所述座椅横梁总成包括：顺次连接的外加强板、横梁本体和内加强板，所述外加强板与所述门槛连接，所述内加强板与所述中通道上端连接，且所述外加强板、所述横梁本体和所述内加强板高度各不相同。
  3. 根据权利要求1所述的汽车电池保护结构，其特征在于，所述汽车电池保护结构还包括框架横梁，所述框架横梁位于所述汽车电池组下方，所述框架横梁两端分别与两个保护组件的纵梁连接。
  4. 根据权利要求3所述的汽车电池保护结构，其特征在于，所述纵梁为倒几字形纵梁，所述倒几字形纵梁的上端与所述地板面板的下表面固定连接，所述倒几字形纵梁的下端与所述框架横梁一端连接。
  5. 根据权利要求1所述的汽车电池保护结构，其特征在于，所述汽车电池保护结构还包括中通道加强板，所述中通道加强板设置在所述中通道底部，且与所述中通道固定连接。
  6. 根据权利要求5所述的汽车电池保护结构，其特征在于，所述中通道下端设置有凸缘，所述地板面板与所述凸缘搭接。
  7. 根据权利要求1-6任一项所述的汽车电池保护结构，其特征在于，所述 座椅横梁总成、所述地板面板、所述纵梁均为合金材料。
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