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WO2019185022A1 - 前地板总成及汽车 - Google Patents

前地板总成及汽车 Download PDF

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Publication number
WO2019185022A1
WO2019185022A1 PCT/CN2019/080430 CN2019080430W WO2019185022A1 WO 2019185022 A1 WO2019185022 A1 WO 2019185022A1 CN 2019080430 W CN2019080430 W CN 2019080430W WO 2019185022 A1 WO2019185022 A1 WO 2019185022A1
Authority
WO
WIPO (PCT)
Prior art keywords
mounting
front floor
floor assembly
cover
battery pack
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/CN2019/080430
Other languages
English (en)
French (fr)
Inventor
王于闽
杨峰
陈祥祯
李岩
丁威毅
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.)
BYD Co Ltd
Original Assignee
BYD 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 BYD Co Ltd filed Critical BYD Co Ltd
Publication of WO2019185022A1 publication Critical patent/WO2019185022A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • 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

Definitions

  • the present disclosure belongs to the field of new energy automobile technology, and in particular relates to a front floor assembly and an automobile.
  • the existing front floor of the automobile is usually a sheet metal panel structure, and is welded to the floor skeleton as an assembly on the welding line. As a part of the body-in-white, it is an important part of the seal of the passenger compartment.
  • the front cover of the automobile and the sealing cover of the battery pack are two independent parts, and there is a matching gap requirement between the two, and a reserved gap of 10 mm to 20 mm is required to avoid interference or abnormal noise, and this structure sacrifices Z.
  • the height to the (vehicle height) causes space waste, resulting in tight layout space and low space utilization.
  • the front floor often needs to provide mounting points for many modules, but due to the limitation of the sheet metal stamping process, only the form of split small bracket welding can be used.
  • This type of front floor assembly adds to the welding process; on the other hand, it also results in a greater weight of the front floor assembly.
  • the technical problem to be solved by the present disclosure is to provide a front floor assembly and an automobile for the problem that the existing front floor assembly has a large weight.
  • an embodiment of the present disclosure provides a front floor assembly including a connecting plate and a battery pack, the battery pack including a battery pack sealing cover and a battery tray, the battery pack sealing cover and the battery tray Forming a sealed space for accommodating the battery module, the connecting plate is provided with a notch, the battery pack is disposed at the notch position, and a top edge of the battery pack sealing cover is connected to the inner side of the connecting plate and covered The gap is formed to form a front floor.
  • the connecting plate is provided with a notch, and the battery pack is disposed at the notch position, and the top edge of the battery pack sealing cover of the battery pack is connected to the inner side of the connecting plate and covers the notch to form the front floor.
  • the gap is covered by the battery pack sealing cover, and the battery pack sealing cover and the connecting plate are combined to form the front floor, and the battery pack sealing cover is a part of the front floor.
  • the battery pack mounting beam (for example, the front floor lower rail) can be lowered with the lifting of the battery pack to lower the design height, so that the battery pack mounting beam can be designed to be lighter in weight. Further reduce the weight of the front floor assembly.
  • an embodiment of the present disclosure also provides an automobile including the front floor assembly described above.
  • FIG. 1 is a perspective view of a front floor assembly according to an embodiment of the present disclosure
  • FIG. 2 is an exploded view of a front floor assembly according to an embodiment of the present disclosure
  • FIG. 3 is a top plan view of a front floor assembly according to an embodiment of the present disclosure.
  • FIG. 4 is a partial cross-sectional view of a front floor assembly according to an embodiment of the present disclosure
  • Figure 5 is an enlarged view of a portion A in Figure 4.
  • FIG. 6 is a partial cross-sectional view of a front floor assembly according to another embodiment of the present disclosure.
  • Figure 7 is an enlarged view of B in Figure 6;
  • FIG. 8 is a schematic view showing the connection between a front floor and a vehicle body according to an embodiment of the present disclosure
  • FIG. 9 is a simplified schematic diagram of a car according to an embodiment of the present disclosure.
  • Figure 10 is a simplified schematic illustration of a web provided by an embodiment of the present disclosure.
  • Battery pack sealing cover 11, top cover; 12, side cover; 121, second flange; 122, third flange;
  • the central channel is installed with studs
  • the power amplifier module is installed with studs
  • the battery module is installed with studs
  • the “up” and “down” directions and the “top” and “bottom” directions refer to the vehicle height direction of the automobile, that is, the Z direction shown in FIG. 2, and the “front” and “rear” directions refer to the vehicle length direction of the automobile.
  • the “left” and “right” directions refer to the vehicle width direction of the automobile, that is, the Y direction shown in FIG. 2
  • the “inside” and “outside” directions refer to the vehicle along the vehicle. Inside, or in the direction of extending outside the car.
  • the existing electric vehicle battery pack sealing cover is mostly formed of composite material or aluminum alloy, and the battery module package is sealed by the battery pack sealing cover and the battery tray to form an integral form of the battery pack, the battery pack. It is then supplied to the assembly line for assembly with the body. For safety reasons, the battery pack must be protected from water, and the battery pack sealing cover is sealed with the battery tray to form a battery pack seal.
  • an embodiment of the present disclosure provides a front floor assembly 100 including a connecting plate 4 and a battery pack.
  • the battery pack includes a battery pack sealing cover 1 and a battery tray 2, and a sealed space for accommodating the battery module is formed between the battery pack sealing cover 1 and the battery tray 2.
  • the connecting plate 4 is provided with a notch 41.
  • the battery pack is disposed at the position of the notch 41.
  • the top edge of the battery pack sealing cover 1 is connected to the inner side of the connecting plate 4 and covered.
  • the notch 41 is formed to form a front floor.
  • the battery pack sealing cover 1 includes a top cover 11 and a side cover 12 surrounding the outer edge of the top cover 11 , and a top side of the side cover 12 is connected outside the top cover 11 Below the edge, the bottom side of the side cover 12 is attached to the outer edge of the battery tray 2.
  • the top cover 11 is both a part of the battery pack sealing cover 1 and a part of the front floor.
  • the notch is covered by the battery pack sealing cover 1, and the battery pack sealing cover 1 and the connecting plate 4 are combined to form the front floor, and the battery pack sealing cover 1 is front.
  • Part of the floor is equivalent to combining the traditional front floor and the battery pack sealing cover, saving the Z-direction space of 10-20mm between the traditional front floor and the battery pack sealing cover, which is equivalent to the overall lifting of the battery pack.
  • the ground clearance of the vehicle body is increased, the road passing property of the vehicle is improved, the space utilization rate is improved, the total arrangement pressure is alleviated, and the weight of the front floor assembly 100 is reduced.
  • the battery pack mounting beam (for example, the front floor lower rail) can be lowered with the lifting of the battery pack to lower the design height, so that the battery pack mounting beam can be designed to be lighter in weight. The weight of the front floor assembly 100 is further reduced.
  • the top cover 11 is an integrally formed composite panel.
  • the material of the composite panel may be SMC (Sheet Molding Compound) or reinforced fiber composite sheet (such as glass fiber composite sheet and aramid fiber composite sheet).
  • SMC Sheet Molding Compound
  • reinforced fiber composite sheet such as glass fiber composite sheet and aramid fiber composite sheet.
  • the composite panel can reduce the weight of the battery pack sealing cover 1 while meeting the strength requirements.
  • the side cover 12 is a stamped sheet metal member corresponding to the top cover 11 in the form of a composite panel.
  • the battery tray 2 includes a battery tray panel 21 that is recessed downward.
  • the top side edge of the battery tray panel 21 is outwardly bent to form a first flange 211.
  • the bottom side edge of the 12 is bent outward to form a second flange 121, and the second flange 121 is sealingly coupled to the upper surface of the first flange 211.
  • the top side edge of the side cover 12 is bent inwardly to form a third flange 122, and the third flange 122 is sealingly connected to the lower surface of the top cover 11 by gluing.
  • the specific connection form of the second flange 121 and the first flange 211 may be welding, gluing, bolting, or the like.
  • the bonding effect is enhanced while the bonding strength is enhanced by the combination of the adhesive and the bolt connection.
  • the outer edge of the top cover 11 is fixedly connected with a mounting nut 3 for connecting the battery pack sealing cover 1 to the vehicle body, and the mounting nut 3 A plurality of outer edges are provided around the top cover 11.
  • the mounting nut 3 is a rivet nut that is riveted to the outer edge of the top cover 11.
  • the front floor assembly 100 can be attached to the body by bolts that match the mounting nut 3.
  • the front floor assembly 100 further includes a front floor lower side member 5, and the top of the front floor lower side member 5 is fixedly connected to the connecting plate 4 by welding or the like.
  • the inner edge of the connecting plate 4 overlaps the outer edge of the top cover 11 , and the inner edge of the connecting plate 4 and the outer edge of the top cover 5 are press-fitted with a sealing member.
  • the press fitting refers to an assembly process of pressing the two parts having the interference fit to the mating position, so it can be understood that the seal 6 is interference fit on the inner side edge of the connecting plate 4 and the outer side of the top cover 5 The same is true for the case where the other parts are involved in the case of press fitting.
  • the seal 6 may be a sealed foam or seal or the like.
  • the seal 6 isolates the front floor (top cover 11) from the bottom to ensure the seal of the passenger compartment.
  • the front floor assembly 100 is attached to the vehicle body by means of a mounting nut 3 and a bolt, and the first is easy to install (the bolt can be easily screwed into the mounting nut 3 from above); the second is that the bolt can be tightly sealed after being fastened. Piece 6, to achieve a good seal.
  • Figure 8 shows the mounting position of the front floor on the vehicle body.
  • the connecting plate 4 is disposed around the top cover 11 , that is, the inner edge of the connecting plate 4 is fixedly connected with the outer edge of the top cover 11 , and the front seat is fixedly connected to the connecting plate 4 and the top cover 11 .
  • the front mounting beam 50 and the front seat rear mounting beam 60, the two ends of the front seat front mounting beam 50 are fixedly connected to the left door sill 70 and the right sill 80, respectively, and the two ends of the front seat rear mounting beam 50 are fixedly connected
  • the left threshold 70 and the right threshold 80 are on.
  • the front seat front mounting cross member 50 and the front seat rear mounting cross member 60 can be used for the installation and reinforcement of the battery pack in addition to the front seat mounting.
  • the connection of the connecting plate 4 to the top cover 11 can be further enhanced.
  • the battery tray 2 further includes a fixed connection to the battery tray panel 21 by welding or bolting, and outwardly protruding the outer edge of the battery tray panel 21.
  • the mounting plate 22 is fixedly attached to the bottom of the front floor lower side member 5 by welding or bolting.
  • the mounting plate 22 can also function to enhance the strength of the battery tray panel 21 while connecting the battery tray 2 to the front floor lower side member 5.
  • the top opening sides of the front floor side rail 5 respectively form an outer flange 51 and an inner flange 52, and the outer flange 51 and the inner flange 52 is fixedly attached to the lower surface of the connecting plate 4 by welding or gluing, and the sealing member 6 is press-fitted between the inner flange 52 and the outer edge of the top cover 11.
  • the sealing member 6 has a large contact area with the inner flange 52 and the top cover 11 on both sides, and the sealing effect is better.
  • the front floor assembly 100 further includes a central passage mounting stud 7 for mounting the auxiliary instrument panel and the shifting mechanism mounting bracket for mounting the power amplifier module.
  • Power amplifier module mounting stud 8 battery module mounting stud 9 for mounting battery module
  • wiring harness mounting stud 10 for mounting automotive wiring harness 200
  • duct mounting stud 20 for installing air conditioning duct and for mounting
  • the stud 20 and the sheet metal guard mounting stud 30 are integrally formed in the top cover 11 .
  • the top cover 11 of the form is integrally formed.
  • the central passage on the existing front floor assembly 100 is replaced by five central passage mounting studs 7 as Mounting points are provided by the auxiliary instrument panel and the shifting mechanism mounting bracket.
  • the power amplifier mounting bracket on the existing front floor assembly 100 is replaced by two power amplifier module mounting studs 8 to provide a mounting point for the power amplifier module.
  • the battery mounting bracket on the existing front floor assembly 100 is replaced by two battery module mounting studs 9 to provide a mounting point for the battery module.
  • a plurality of weld bolt brackets and end face welding bolts on the existing front floor assembly 100 are replaced by one harness mounting stud 10, four duct mounting studs 20 and three sheet metal guard studs 30. This provides installation points for a number of general layout modules such as wire harnesses, air conditioning ducts, and sheet metal shields for air conditioning ducts.
  • the upper portion of the top cover 11 is divided into a front mounting area FA, a middle mounting area MA and a rear mounting area BA from front to back; the central passage
  • the mounting stud 7 is disposed at an intermediate position of the front mounting area FA
  • the power amplifier module mounting stud 8 and the harness mounting stud 10 are disposed on the left side of the middle mounting area MA
  • the battery module is installed
  • the stud 9 and the sheet metal guard mounting stud 30 are disposed on the right side of the middle mounting area MA
  • the duct mounting stud 20 is disposed at an intermediate position of the rear mounting area BA.
  • the central channel mounting stud 7, the power amplifier module mounting stud 8, the battery module mounting stud 9, the wire harness mounting stud 10, and the air duct mounting are integrally formed in the top cover 11 in the form of a composite panel.
  • the stud 20 and the sheet metal guard mounting stud 30 can replace the sheet metal bracket at the corresponding position in the prior art, and do not need welding, which reduces the welding process, reduces the weight of the vehicle body, and improves the weight reduction factor of the vehicle body.
  • the front floor assembly 100 of the embodiment of the present disclosure has an overall weight of the battery pack sealing cover of 18.493 Kg, while the conventional battery pack sealing cover and the front floor have a total weight of 23.926 Kg, which is equivalent to a weight reduction of 5.433. Kg.
  • the battery pack mounting beam (for example, the front floor lower rail) can be matched with a battery pack (including a battery pack sealing cover, a battery tray, and The battery module is lifted up to lower the design height, so that the battery pack mounting beam can be designed to be lighter in weight, further reducing the weight of the front floor assembly 100.
  • the use of a top cover in the form of a composite panel and the replacement of individual sheet metal supports have a significant contribution to the weight reduction of the body, resulting in a weight reduction of 22.7% for the front floor assembly 100.
  • the battery pack sealing cover 1 is an integrally formed sheet metal member, that is, the top cover 11 and the side cover 12 are integrally formed.
  • a DC01 material having a thickness of 0.7 mm can be formed by press forming.
  • the upper surface areas of the battery pack sealing cover 1 are respectively welded with the respective sheet metal brackets.
  • the battery tray 2 includes a battery tray panel 21 that is recessed downward, and a top side edge of the battery tray panel 21 is outwardly bent to form a first flange 211.
  • the bottom side edge of the side cover 12 is bent outward to form a second flange 121, and the second flange 121 is sealingly connected to the upper surface of the first flange 211.
  • the battery tray 2 further includes a battery tray panel 21 that is fixedly attached to the battery tray panel 21 by welding or bolting, and protrudes outward.
  • the front floor assembly 100 further includes a front floor lower side rail 5 and a sealing cover connecting plate 40, and the top of the front floor lower side member 5 is fixedly connected under the connecting plate 4 by welding or the like, the mounting The plate 22 is fixedly connected to the bottom of the front floor lower side member 5 by welding or bolting, etc., and the inner side edge of the sealing cover connecting plate 40 is fixedly attached to the outer edge of the top cover 11 by gluing or the like.
  • the seal 6 can be a sealed foam or a sealing ring or the like. The seal 6 isolates the front floor (top cover 11) from the bottom to ensure the seal of the passenger compartment.
  • both sides of the top opening of the front floor lower side member 5 respectively form an outer flange 51 and an inner flange 52, and the outer flange 51 and the inner flange 52 is fixedly attached to the lower surface of the connecting plate 4 by welding or gluing, and the sealing member 6 is press-fitted between the inner flange 52 and the sealing cover connecting plate 40.
  • the battery pack sealing cover 1 is an integrally formed sheet metal member, the connection between the top cover 11 and the side cover 12 is no longer formed as a flange, in order to realize the top cover 11 and the connecting plate 4 And the connection of the inner flange 52 of the front floor lower rail 5 is provided with a sealing cover connecting plate 40, and the sealing cover connecting plate 40 connects the battery pack sealing cover 1 and the connecting plate 4 and the inner flange 52 of the front floor side sill 5 connect them.
  • the battery pack sealing cover may also be an integrally formed composite panel.
  • the top cover and the side cover of the battery pack sealing cover are two parts, and both of the parts may be composite materials or may be sheet metal parts.
  • top cover portions of the battery pack sealing cover constitute the front floor (used as the front floor), and the carpet is directly laid over the top cover of the battery pack sealing cover.
  • an embodiment of the present disclosure further provides an automobile 200 including the front floor assembly 100 of the above embodiment.
  • the automobile 200 provided in this embodiment increases the ground clearance of the vehicle body, improves the road passing property, improves the space utilization rate, alleviates the total arrangement pressure, and reduces the weight of the front floor assembly 100.
  • the battery pack mounting beam for example, the front floor lower rail
  • the battery pack mounting beam can be lowered with the lifting of the battery pack to lower the design height, so that the battery pack mounting beam can be designed to be lighter in weight. Further reducing the weight of the front floor assembly 100 is advantageous for the weight reduction of the automobile 200.

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

Abstract

一种前地板总成(100)及汽车(200)，该前地板总成(100)包括连接板(4)及电池包，电池包包括电池包密封盖(1)及电池托盘(2)，电池包密封盖(1)及电池托盘(2)之间形成容纳电池模组的密闭空间，连接板(4)上设置有缺口(41)，电池包设置在缺口(41)的位置，电池包密封盖(1)的顶部边缘连接在连接板(4)的内侧并覆盖缺口(41)，以形成前地板。

Description

前地板总成及汽车
相关申请的交叉引用
本申请基于申请号为201810279529.X，申请日为2018年03月30日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本公开属于新能源汽车技术领域，尤其涉及一种前地板总成及汽车。
背景技术
现有汽车前地板通常为钣金面板结构，在焊装线上与地板骨架焊装为总成，作为白车身的一个零件，是构成乘员舱密封的重要零件。
相关技术中，汽车前地板与电池包密封盖为独立的两个零件，二者之间有配合间隙要求，需保证10mm～20mm的预留间隙以避免干涉或异响，此种结构牺牲了Z向(车高方向)高度，造成空间上的浪费，导致布置空间紧张，空间利用率低。
并且，由于总布置需求，前地板上往往需要为许多模块提供安装点，但由于钣金冲压工艺的限制，只能采用拆分小支架焊接的形式。此种形式的前地板总成，一方面，增加了焊接工序；另一方面，也导致前地板总成重量较大。
发明内容
本公开所要解决的技术问题是：针对现有的前地板总成重量较大的问题，提供一种前地板总成及汽车。
为解决上述技术问题，一方面，本公开实施例提供一种前地板总成，包括连接板及电池包，所述电池包包括电池包密封盖及电池托盘，所述电池包密封盖及电池托盘之间形成容纳电池模组的密闭空间，所述连接板上设置有缺口，所述电池包设置在所述缺口位置，所述电池包密封盖的顶部边缘连接在所述连接板的内侧并覆盖所述缺口，以形成前地板。
本公开实施例提供的前地板总成，连接板上设置有缺口，电池包设置在缺口位置，电池包的电池包密封盖的顶部边缘连接在连接板的内侧并覆盖缺口，以形成前地板。这样，相当于在传统的整块的前地板上挖出一个缺口，缺口处由电池包密封盖覆盖，由电池包密封盖与连接板组合构成前地板，电池包密封盖为前地板的一部分，相当于将传统的前地板与电池包密封盖合二为一，节省了传统的前地板与电池包密封盖之间10～20mm的Z向空间， 相当于电池包整体上抬，增加了车身的离地间隙，改善了车辆的路面通过性，并提升了空间利用率，缓解了总布置压力，降低了前地板总成的重量。此外，由于节省了10～20mm的Z向空间，使得电池包安装梁(例如前地板下纵梁)可配合电池包的上抬而降低设计高度，使电池包安装梁可以设计的重量更轻，进一步减轻前地板总成的重量。
另一方面，本公开实施例还提供一种汽车，其包括上述的前地板总成。
附图说明
图1是本公开一实施例提供的前地板总成的立体图；
图2是本公开一实施例提供的前地板总成的分解图；
图3是本公开一实施例提供的前地板总成的俯视图；
图4是本公开一实施例提供的前地板总成的局部剖视图；
图5是图4中A处的放大图；
图6是本公开另一实施例提供的前地板总成的局部剖视图；
图7是图6中B处的放大图；
图8是本公开一实施例提供的前地板与车身的连接示意图；
图9是本公开一实施例提供的汽车的简化示意图；
图10是本公开以实施例提供的连接板的简化示意图。
说明书中的附图标记如下：
1、电池包密封盖；11、顶盖板；12、侧盖板；121、第二翻边；122、第三翻边；
2、电池托盘；21、电池托盘面板；211、第一翻边；22、安装板；
3、安装螺母；
4、连接板；41、缺口；
5、前地板下纵梁；51、外翻边；52、内翻边；
6、密封件；
7、中央通道安装螺柱；
8、功放模块安装螺柱；
9、电池模块安装螺柱；
10、线束安装螺柱；
20、风道安装螺柱；
30、钣金护板安装螺柱；
40、密封盖连接板；
50、前座椅前安装横梁；
60、前座椅后安装横梁；
70、左门槛；
80、右门槛；
100、前地板总成；
200、汽车。
具体实施方式
为了使本公开所解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本公开进行进一步的详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本公开，并不用于限定本公开。
在本公开的描述中，需要理解的是，“上”、“下”、“前”、“后”、“左”、“右”、“顶”、“底”等指示的方位或者位置关系是以汽车本身的方位为准的。例如，“上”、“下”方向以及“顶”、“底”方向指汽车的车高方向，即图2中所示的Z方向，“前”、“后”方向指汽车的车长方向，即图2中所示的X方向，“左”、“右”方向指汽车的车宽方向，即图2中所示的Y方向，“内”、“外”方向指沿着汽车向车内、或向车外延伸的方向。
本申请的设计者了解到，现有的电动汽车电池包密封盖多为复合材料或铝合金成型，通过电池包密封盖与电池托盘将电池模组封装密封以形成整体形式的电池包，电池包再供往总装线与车身进行装配。出于安全考虑，电池包需保证不进水，电池包密封盖与电池托盘密封连接形成电池包的密封。下面将结合附图描述一些本公开实施例的前地板总成100。
如图1至图4所示，本公开实施例提供了一种前地板总成100，包括连接板4及电池包。所述电池包包括电池包密封盖1及电池托盘2，所述电池包密封盖1及电池托盘2之间形成容纳电池模组的密闭空间。如图10所示，所述连接板4上设置有缺口41，所述电池包设置在所述缺口41位置，所述电池包密封盖1的顶部边缘连接在所述连接板4的内侧并覆盖所述缺口41，以形成前地板。
所述电池包密封盖1包括顶盖板11及环绕所述顶盖板11的外边缘一圈的侧盖板12，所述侧盖板12的顶侧连接在所述顶盖板11的外边缘下方，所述侧盖板12的底侧连接在所述电池托盘2的外边缘上。顶盖板11既是电池包密封盖1的一部分，又是前地板的一部分。
这样，相当于在传统的整块的前地板上挖出一个缺口，缺口处由电池包密封盖1覆盖，由电池包密封盖1与连接板4组合构成前地板，电池包密封盖1为前地板的一部分，相当于将传统的前地板与电池包密封盖合二为一，节省了传统的前地板与电池包密封盖之间10～20mm的Z向空间，相当于电池包整体上抬，增加了车身的离地间隙，改善了车辆的路 面通过性，并提升了空间利用率，缓解了总布置压力，降低了前地板总成100的重量。此外，由于节省了10～20mm的Z向空间，使得电池包安装梁(例如前地板下纵梁)可配合电池包的上抬而降低设计高度，使电池包安装梁可以设计的重量更轻，进一步减轻前地板总成100的重量。
在一实施例中，所述顶盖板11为一体成型的复合材料面板。复合材料面板的材料可以是SMC(Sheet Molding Compound，片状塑料模)或增强纤维复合材料板等(例如玻璃纤维复合材料板及芳纶纤维复合材料板)。复合材料面板在满足强度要求的同时，能够降低电池包密封盖1的重量。
在一实施例中，对应于复合材料面板形式的顶盖板11，侧盖板12为冲压钣金件。如图2及图4所示，所述电池托盘2包括向下凹陷的电池托盘面板21，所述电池托盘面板21的顶侧边缘向外弯折形成第一翻边211，所述侧盖板12的底侧边缘向外弯折形成第二翻边121，所述第二翻边121密封连接在所述第一翻边211的上表面。所述侧盖板12的顶侧边缘向内弯折形成第三翻边122，所述第三翻边122通过胶粘的方式密封连接在所述顶盖板11的下表面。
所述第二翻边121与所述第一翻边211的具体连接形式可以是焊接、胶粘及螺栓连接等。优选地，采用胶粘与螺栓连接相结合的方式，在实现连接强度的同时，增强密封效果。通过所述第二翻边121与所述第一翻边211的连接，可以增大所述电池托盘面板21与侧盖板12的搭接面积，增大连接强度。同样，通过第三翻边122与顶盖板11的下表面连接，可以增大所述顶盖板11与侧盖板12的搭接面积，增大连接强度。
在一实施例中，如图2至图4所示，所述顶盖板11的外侧边缘固定连接有用于将所述电池包密封盖1连接在车身上的安装螺母3，所述安装螺母3环绕所述顶盖板11的外侧边缘设置有多个。优选地，所述安装螺母3为铆压在所述顶盖板11的外侧边缘的铆接螺母。通过与安装螺母3匹配的螺栓可将前地板总成100连接在车身上。
在一实施例中，如图4所示，所述前地板总成100还包括前地板下纵梁5，所述前地板下纵梁5的顶部通过焊接等方式固定连接在所述连接板4的下方，所述连接板4的内侧边缘搭接在所述顶盖板11的外侧边缘上方，所述连接板4的内侧边缘与所述顶盖板5的外侧边缘之间压装有密封件6。这里，压装是指将具有过盈量配合的两个零件压到配合位置的装配过程，因此在此可以理解，密封件6过盈配合在连接板4的内侧边缘与顶盖板5的外侧边缘之间，其它零件涉及有压装的情况的同样作此理解。
可选地，密封件6可以是密封泡棉或密封圈等。密封件6将前地板(顶盖板11)与下方隔绝，以保证乘员舱的密封性。此处采用安装螺母3与螺栓将前地板总成100连接在车身上，一是便于安装(螺栓可以很方便的从上方拧入安装螺母中3)；二是，螺栓紧固后能 够压紧密封件6，实现良好的密封性。
图8示出了该前地板在车身上的安装位置。如图8所示，连接板4围绕顶盖板11设置，即连接板4的内侧边缘与顶盖板11的外侧边缘固定连接，连接板4及顶盖板11上还固定连接有前座椅前安装横梁50及前座椅后安装横梁60，前座椅前安装横梁50的两端分别固定连接在左门槛70及右门槛80上，前座椅后安装横梁50的两端分别固定连接在左门槛70及右门槛80上。这样，前座椅前安装横梁50及前座椅后安装横梁60除了用于前座椅的安装，还能够起到电池包的安装加强作用。并且，能够进一步增强连接板4与顶盖板11的连接。
在一实施例中，如图4所示，所述电池托盘2还包括通过焊接或螺栓连接等方式固定连接在所述电池托盘面板21上且向外突出所述电池托盘面板21的外边缘的安装板22，所述安装板22通过焊接或螺栓连接等方式固定连接在所述前地板下纵梁5的底部。安装板22，在用于将电池托盘2连接在前地板下纵梁5的同时，还能够起到增强电池托盘面板21的强度的作用。
在一实施例中，如图4及图5所示，所述前地板下纵梁5的顶部开口两侧分别形成外翻边51及内翻边52，所述外翻边51及内翻边52通过焊接或胶粘等方式固定连接在所述连接板4的下表面，所述密封件6压装在所述内翻边52与所述顶盖板11的外侧边缘之间。密封件6与两侧的所述内翻边52及所述顶盖板11接触面积较大，密封效果更好。
在一实施例中，如图1及图2所示，所述前地板总成100还包括用于安装副仪表台及换挡机构安装支架的中央通道安装螺柱7、用于安装功放模块的功放模块安装螺柱8、用于安装电池模块的电池模块安装螺柱9、用于安装汽车200线束的线束安装螺柱10、用于安装空调风道的风道安装螺柱20及用于安装空调风道的钣金护板的钣金护板安装螺柱30，所述中央通道安装螺柱7、功放模块安装螺柱8、电池模块安装螺柱9、线束安装螺柱10、风道安装螺柱20及钣金护板安装螺柱30一体成型于所述顶盖板11中。即，所述中央通道安装螺柱7、功放模块安装螺柱8、电池模块安装螺柱9、线束安装螺柱10、风道安装螺柱20及钣金护板安装螺柱30与复合材料面板形式的所述顶盖板11一体成型。
具体地，如图1所示，基于复合材料面板的前地板(顶盖板11)，由5个中央通道安装螺柱7替换了现有的前地板总成100上的中央通道，以此为副仪表台及换挡机构安装支架等提供安装点。由2个功放模块安装螺柱8替换现有的前地板总成100上的功放安装支架，以此为功放模块提供安装点。由2个电池模块安装螺柱9替换现有的前地板总成100上的电池安装支架为电池模块提供安装点。由1个线束安装螺柱10、4个风道安装螺柱20及3个钣金护板安装螺柱30替换现有的前地板总成100上的多个备焊螺栓支架及端面焊螺栓，以此为线束、空调风道及空调风道的钣金护板等多个总布置模块提供安装点。
在一实施例中，如图1及图2所示，所述顶盖板11的上部由前至后划分为前部安装区域FA、中部安装区域MA及后部安装区域BA；所述中央通道安装螺柱7设置在所述前部安装区域FA的中间位置，所述功放模块安装螺柱8及所述线束安装螺柱10设置在所述中部安装区域MA的左侧，所述电池模块安装螺柱9及所述钣金护板安装螺柱30设置在所述中部安装区域MA的右侧，所述风道安装螺柱20设置在所述后部安装区域BA的中间位置。
这样，通过在复合材料面板形式的所述顶盖板11内一体成型所述中央通道安装螺柱7、功放模块安装螺柱8、电池模块安装螺柱9、线束安装螺柱10、风道安装螺柱20及钣金护板安装螺柱30，可以替代现有技术中对应位置处的钣金支架，且不需要焊接，减少了焊接工序，减轻了车身重量，提升了车身的轻量化系数。
在某一车型中，采用本公开实施例的前地板总成100，电池包密封盖的整体重量为18.493Kg，而传统的电池包密封盖与前地板总重为23.926Kg，相当于减重5.433Kg。
此外，由于本公开实施例的前地板总成100节省了10mm～20mm的Z向空间，使得电池包安装梁(例如前地板下纵梁)可配合电池包(包括电池包密封盖、电池托盘及电池模组)的上抬而降低设计高度，使电池包安装梁可以设计的重量更轻，进一步减轻前地板总成100的重量。复合材料面板形式的顶盖板的运用以及各个钣金支架的替代对车身轻量化有着显著的贡献，使得前地板总成100可减重22.7％。
参见图6及图7，本公开另一实施例提供了一种前地板总成100。与图4所示实施例一个不同之处是，该实施例中，所述电池包密封盖1为一体成型的钣金件，即，顶盖板11及侧盖板12一体成型。例如，可采用料厚为0.7mm的DC01材料冲压成型。此时，由于冲压工艺的限制，所述电池包密封盖1上表面区域分别焊装各个钣金支架。
在该实施例中，如图6所示，所述电池托盘2包括向下凹陷的电池托盘面板21，所述电池托盘面板21的顶侧边缘向外弯折形成第一翻边211，所述侧盖板12的底侧边缘向外弯折形成第二翻边121，所述第二翻边121密封连接在所述第一翻边211的上表面。
在该实施例中，如图6及图7所示，所述电池托盘2还包括通过焊接或螺栓连接等方式固定连接在所述电池托盘面板21上且向外突出所述电池托盘面板21的外边缘的安装板22。所述前地板总成100还包括前地板下纵梁5及密封盖连接板40，所述前地板下纵梁5的顶部通过焊接等方式固定连接在所述连接板4的下方，所述安装板22通过焊接或螺栓连接等方式固定连接在所述前地板下纵梁5的底部，所述密封盖连接板40的内侧边缘通过胶粘等方式固定连接在所述顶盖板11的外侧边缘上方，所述连接板4的内侧边缘搭接在所述密封盖连接板40的上方，所述连接板4的内侧边缘与所述密封盖连接板40之间压装有密封件6。密封件6可以是密封泡棉或密封圈等。密封件6将前地板(顶盖板11)与下方隔绝，以保证乘员舱的密封性。
在一实施例中，如图6及图7所示，所述前地板下纵梁5的顶部开口两侧分别形成外翻边51及内翻边52，所述外翻边51及内翻边52通过焊接或胶粘等方式固定连接在所述连接板4的下表面，所述密封件6压装在所述内翻边52与所述密封盖连接板40之间。该实施例中，由于所述电池包密封盖1为一体成型的钣金件，因而顶盖板11与侧盖板12的连接处不再形成翻边，为了实现顶盖板11与连接板4及前地板下纵梁5的内翻边52的连接，设置有密封盖连接板40，密封盖连接板40将电池包密封盖1与连接板4及前地板下纵梁5的内翻边52连接起来。
此外，在其它实施例中，所述电池包密封盖也可以是一体成型复合材料面板。或者是，电池包密封盖的顶盖板与侧盖板为两个部件，此两个部件可均为复合材料，也可均为钣金件。
这些实施例的共性是，电池包密封盖的顶盖板部分均构成前地板(当作前地板使用)，电池包密封盖的顶盖板上方直接铺设地毯。
另外，如图9所示，本公开一实施例还提供了一种汽车200，其包括上述实施例的前地板总成100。
本实施例提供的汽车200，增加了车身的离地间隙，改善了路面通过性，并提升了空间利用率，缓解了总布置压力，降低了前地板总成100的重量。此外，由于节省了10mm～20mm的Z向空间，使得电池包安装梁(例如前地板下纵梁)可配合电池包的上抬而降低设计高度，使电池包安装梁可以设计的重量更轻，进一步减轻前地板总成100的重量，有利于汽车200的轻量化。
以上所述仅为本公开的较佳实施例而已，并不用以限制本公开，凡在本公开的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本公开的保护范围之内。

Claims (15)

  1. 一种前地板总成，其特征在于，包括连接板及电池包，所述电池包包括电池包密封盖及电池托盘，所述电池包密封盖及电池托盘之间形成容纳电池模组的密闭空间，所述连接板上设置有缺口，所述电池包设置在所述缺口位置，所述电池包密封盖的顶部边缘连接在所述连接板的内侧并覆盖所述缺口，以形成前地板。
  2. 根据权利要求1所述的前地板总成，其特征在于，所述电池包密封盖包括顶盖板及环绕所述顶盖板的外边缘一圈的侧盖板，所述侧盖板的顶侧连接在所述顶盖板的外边缘下方，所述侧盖板的底侧连接在所述电池托盘的外边缘上。
  3. 根据权利要求2所述的前地板总成，其特征在于，所述前地板总成还包括前地板下纵梁，所述前地板下纵梁的顶部固定连接在所述连接板的下方，所述连接板的内侧边缘搭接在所述顶盖板的外侧边缘上方。
  4. 根据权利要求3所述的前地板总成，其特征在于，所述前地板下纵梁的顶部开口两侧分别形成外翻边及内翻边，所述外翻边及内翻边固定连接在所述连接板的下表面，所述内翻边与所述顶盖板的外侧边缘之间压装有密封件。
  5. 根据权利要求3所述的前地板总成，其特征在于，所述电池托盘包括向下凹陷的电池托盘面板及固定连接在所述电池托盘面板上且向外突出所述电池托盘面板的外边缘的安装板，所述安装板固定连接在所述前地板下纵梁的底部。
  6. 根据权利要求5所述的前地板总成，其特征在于，所述电池托盘面板的顶侧边缘向外弯折形成第一翻边，所述侧盖板的底侧边缘向外弯折形成第二翻边，所述第二翻边密封连接在所述第一翻边的上表面。
  7. 根据权利要求5所述的前地板总成，其特征在于，所述侧盖板的顶侧边缘向内弯折形成第三翻边，所述第三翻边密封连接在所述顶盖板的下表面。
  8. 根据权利要求2-7中任意一项所述的前地板总成，其特征在于，所述顶盖板的外侧边缘固定连接有用于将所述电池包密封盖连接在车身上的安装螺母。
  9. 根据权利要求2-8任意一项所述的前地板总成，其特征在于，所述顶盖板为一体成型的复合材料面板。
  10. 根据权利要求9所述的前地板总成，其特征在于，所述前地板总成还包括用于安装副仪表台及换挡机构安装支架的中央通道安装螺柱、用于安装功放模块的功放模块安装螺柱、用于安装电池模块的电池模块安装螺柱、用于安装汽车线束的线束安装螺柱、用于安装风道的风道安装螺柱及用于安装钣金护板的钣金护板安装螺柱，所述中央通道安装螺柱、功放模块安装螺柱、电池模块安装螺柱、线束安装螺柱、风道安装螺柱及钣金护板安 装螺柱一体成型于所述顶盖板中；
    所述顶盖板的上部由前至后划分为前部安装区域、中部安装区域及后部安装区域；所述中央通道安装螺柱设置在所述前部安装区域的中间位置，所述功放模块安装螺柱及所述线束安装螺柱设置在所述中部安装区域的左侧，所述电池模块安装螺柱及所述钣金护板安装螺柱设置在所述中部安装区域的右侧，所述风道安装螺柱设置在所述后部安装区域的中间位置。
  11. 根据权利要求2所述的前地板总成，其特征在于，所述电池包密封盖为一体成型的钣金件或一体成型的复合材料面板。
  12. 根据权利要求11所述的前地板总成，其特征在于，所述前地板总成还包括前地板下纵梁及密封盖连接板，所述前地板下纵梁的顶部固定连接在所述连接板的下方，所述密封盖连接板的内侧边缘固定连接在所述顶盖板的外侧边缘上方，所述连接板的内侧边缘搭接在所述密封盖连接板的上方，所述连接板的内侧边缘与所述密封盖连接板之间压装有密封件。
  13. 根据权利要求12所述的前地板总成，其特征在于，所述电池托盘包括向下凹陷的电池托盘面板及固定连接在所述电池托盘面板上且向外突出所述电池托盘面板的外边缘的安装板，所述安装板固定连接在所述前地板下纵梁的底部。
  14. 根据权利要求13所述的前地板总成，其特征在于，所述前地板下纵梁的顶部开口两侧分别形成外翻边及内翻边，所述外翻边及内翻边固定连接在所述连接板的下表面，所述密封件压装在所述内翻边与所述密封盖连接板之间。
  15. 一种汽车，其特征在于，包括权利要求1-14任意一项所述的前地板总成。
PCT/CN2019/080430 2018-03-30 2019-03-29 前地板总成及汽车 Ceased WO2019185022A1 (zh)

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