CN218258397U - Vehicle body bottom plate assembly and vehicle - Google Patents

Abstract

The utility model discloses an underbody assembly and vehicle, the underbody assembly includes: a base plate bracket; the battery box, the battery box includes lid and box, the lid with the bottom plate support links to each other, the lid with the box cooperation is injectd and is held the chamber and be used for holding battery monomer. According to the utility model discloses an automobile body bottom plate assembly, through linking to each other lid and bottom plate support, and the box links to each other with the lid, has simplified the connection structure of automobile body bottom plate assembly, has reduced the connection degree of difficulty of automobile body bottom plate assembly, has promoted the integrated efficiency of spare part, has reduced the installation space volume, has reduced the spare part quantity of automobile body bottom plate assembly, has improved the utilization ratio in automobile body bottom space.

Description

Vehicle body bottom plate assembly and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle manufacturing technique and specifically relates to an underbody assembly and vehicle are related to.

Background

In the related art, the new energy automobile power battery is a finished automobile power source, and the available electric quantity of the new energy automobile power battery directly influences the endurance mileage and the service performance of the finished automobile. The power battery mainly adopts lithium iron phosphate and a ternary anode material at present, and through recent development, the energy density of a battery core is improved to a certain extent, but the problem of cruising anxiety of long-distance or winter trip cannot be thoroughly solved. The current battery structure innovation with higher space utilization rate and higher integration degree becomes a main development direction.

After the iteration of small modules, large modules and CTP, the internal grouping technology of the power battery system basically replaces the structural member without the battery core by an adhesion scheme, and the space for continuously improving the internal integration efficiency of the battery box is not large. However, the battery box and the vehicle body have more structural redundant parts, the integration and fusion of the structures of the battery box and the vehicle body can further improve the space utilization rate of the bottom of the vehicle body, reduce the number of parts and simplify the assembly process, and the current integration mode of the battery box and the vehicle body has the advantages that a complete battery pack is reserved, only the floor of the vehicle body is removed, and the in-plane integration efficiency cannot be maximized due to the limitation of the frame of the battery box; some seats and the like are directly assembled on the upper cover of the battery box, so that the difficulty of after-sale maintenance is increased; some battery box lower trays are directly assembled on a vehicle body threshold beam and front and rear cross beams, and the risk of sealing problems on the assembly surface is high due to the fact that a vehicle body tailor-welded structure is complex.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an underbody assembly, underbody assembly structural design is ingenious, and bearing capacity is good.

The utility model discloses still provide a vehicle that has above-mentioned underbody assembly.

According to the utility model discloses underbody assembly of first aspect, include: a base plate bracket; the battery box, the battery box includes lid and box, the lid with the bottom plate support links to each other, the lid with the box cooperation is injectd and is held the chamber and be used for holding battery monomer.

According to the utility model discloses an underbody assembly, through linking to each other lid and bottom plate support, and the box links to each other with the lid, has simplified the connection structure of underbody assembly, has reduced the connection degree of difficulty of underbody assembly, has promoted the integrated efficiency of spare part, has reduced the installation space volume, has reduced the spare part quantity of underbody assembly, has improved the utilization ratio in underbody space.

In some embodiments, the cover is formed with a first flange extending circumferentially of the cover, the first flange being connected to the floor bracket.

In some embodiments, the first flange is welded to the bottom bracket.

In some embodiments, the box body is formed with a second flange extending along a circumferential direction of the box body, and the first flange is connected to the second flange.

In some embodiments, the box is equipped with a plurality of installation departments of interval arrangement, and is a plurality of the one end of installation department with the box links to each other, and is a plurality of the other end orientation of installation department deviates from the direction level of box extends and surpasss the second turn-ups, be formed with the mounting hole on the installation department, the box passes through the fastener the mounting hole with the bottom plate support links to each other.

In some embodiments, the floor bracket comprises: the cross beam extends along the left-right direction and comprises a first cross beam and a second cross beam; the longitudinal beams extend along the front-back direction and comprise a first longitudinal beam, a second longitudinal beam and a third longitudinal beam; the first cross beam is connected at two ends of the first longitudinal beam, the second cross beam is arranged between the first cross beams and connected with the first longitudinal beam, two ends of the second longitudinal beam are connected between the second cross beams, and two ends of the third longitudinal beam are connected between the first cross beam and the second cross beam.

In some embodiments, the cover is integrally stamped and formed, and/or the tank is integrally stamped and formed.

In some embodiments, a sealing member is disposed between the cover and the bottom bracket, and/or an elastic member is disposed between the cover and the box.

In some embodiments, the underbody assembly further comprises: the high-low pressure plug connector, the high-low pressure plug connector is located the front end of box.

According to the utility model discloses vehicle of second aspect, include according to the utility model discloses the underbody assembly of above-mentioned first aspect.

According to the utility model discloses a vehicle is through setting up the vehicle body bottom assembly of above-mentioned first aspect to improved the wholeness ability of vehicle, the integrated level of vehicle is higher, and automobile body spare part quantity is less, and the automobile body is sealed effectual, and simple structure, the assembly of being convenient for.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic view of an underbody assembly according to an embodiment of the present invention;

FIG. 2 is an assembled schematic view of the underbody assembly shown in FIG. 1;

FIG. 3 is a schematic illustration of a bottom view of the underbody assembly shown in FIG. 1;

fig. 4 is a schematic view of the battery box shown in fig. 3.

Reference numerals are as follows:

100. a vehicle underbody assembly;

1. a base plate bracket; 11. a first cross member; 12. a second cross member;

13. a first longitudinal beam; 14. a second stringer; 15. a third longitudinal beam;

2. a battery case; 21. a cover body; 211. a first flanging;

22. a box body; 221. second flanging; 222. an installation part;

3. a high-low voltage plug connector;

4. and (4) a battery cell.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

An underbody assembly 100 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 4.

As shown in fig. 2, the vehicle body bottom plate assembly 100 according to the embodiment of the present invention includes: a floor support 1 and a battery box 2.

Specifically, the battery box 2 includes a cover 21 and a box 22, the cover 21 is connected to the bottom bracket 1, and the cover 21 cooperates with the box 22 to define a receiving cavity for receiving the battery cell 4. That is to say, the vehicle body floor assembly 100 includes a floor support 1 and a battery box 2, the battery box 2 has a cover 21 and a box 22, the cover 21 of the battery box 2 is connected with the floor support 1, and a receiving cavity is defined between the cover 21 and the box 22 and is used for receiving the battery cell 4. Therefore, the vehicle body bottom plate assembly 100 is simple in structure and ingenious in design.

According to the utility model discloses underbody assembly 100 is through linking to each other lid 21 with bottom plate support 1, and box 22 links to each other with lid 21, has simplified underbody assembly 100's connection structure, has reduced underbody assembly 100's the connection degree of difficulty, has promoted the integrated efficiency of spare part, has reduced the installation space volume, has reduced underbody assembly 100's spare part quantity, has improved the utilization ratio in underbody space.

It should be emphasized here that the case 22 is connected to the cover 21, rather than directly to the floor frame 1, so that the integrity and flatness of the connection surface are ensured, and the frame structure of the case 22 of the battery case 2 is greatly weakened, the bearing performance is shifted to the vehicle body part, and the two are jointly loaded, thereby improving the space utilization rate of the battery case 2 in the XY plane.

In the present application, the front-rear direction and the left-right direction are both the front-rear direction and the left-right direction of the vehicle during normal running.

In some embodiments of the present invention, as shown in fig. 4, the cover 21 is formed with a first flange 211, the first flange 211 extends along the circumferential direction of the cover 21, and the first flange 211 is connected to the bottom bracket 1. From this, connection structure is simple, and first turn-ups 211 has increased the connection contact surface, has promoted connection stability.

Furthermore, welded connection between first turn-ups 211 and the bottom plate support 1, welded connection stability is high, and is stable firm.

Referring to fig. 4, the upper surface of the lid 21 is a plane, so that the structure of the underbody assembly 100 is simplified, the performance of the vehicle body is ensured, the applicability is high, and the space utilization rate in the XY plane of the battery box 2 is improved to the maximum extent.

In some embodiments of the present invention, the box body 22 is formed with a second flange 221, the second flange 221 extends along the circumferential direction of the box body 22, and the first flange 211 is connected to the second flange 221. Therefore, the connection structure of the box body 22 and the cover body 21 is simple, the welding deformation is small, and the problem of sealing of the assembly surface of the battery box 2 is avoided.

It should be noted here that the battery box 2 has a complete integrated upper cover, production tests of the battery box 2, such as battery pack assembly airtightness tests, upper and lower casing hole site matching tests and the like, can be performed independently of the vehicle body, and meanwhile, the battery pack can be in an independent structural form to perform various electrical property tests of the power battery system required by the national standard GB 38031.

In some embodiments of the present invention, as shown in fig. 3, the box body 22 is provided with a plurality of installation portions 222 arranged at intervals, one end of each installation portion 222 is connected to the box body 22, the other end of each installation portion 222 extends horizontally towards the direction away from the box body 22 and exceeds the second flange 221, an installation hole is formed on each installation portion 222, and the box body 22 is connected to the bottom plate bracket 1 by passing through the installation hole through a fastener. From this, on the one hand box 22 links to each other through first turn-ups 211 and second turn-ups 221 with lid 21, and on the one hand box 22 passes the mounting hole through the fastener with bottom plate support 1 and is connected, has improved battery box 2 and bottom plate support 1's stability of being connected, has guaranteed vehicle body bottom assembly 100's whole installation intensity.

In some embodiments of the present invention, the floor bracket 1 includes: the cross beam extends along the left-right direction and comprises a first cross beam 11 and a second cross beam 12; longitudinal beams extending in the front-rear direction, the longitudinal beams including a first longitudinal beam 13, a second longitudinal beam 14, and a third longitudinal beam 15; the first cross beam 11 is connected to two ends of the first longitudinal beam 13, the second cross beam 12 is arranged between the two first cross beams 11 and connected with the first longitudinal beam 13, two ends of the second longitudinal beam 14 are connected between the two adjacent second cross beams 12, and two ends of the third longitudinal beam 15 are connected between the adjacent first cross beams 11 and the second cross beams 12. That is to say, the second cross beam 12 is integrally connected between the two first longitudinal beams 13, so that the overall structure of the floor support 1 is simplified, the strength and rigidity of the vehicle body during side impact are ensured, and the safety factor of the vehicle is improved.

In some embodiments of the present invention, the cover 21 is integrally formed by stamping, and/or the box 22 is integrally formed by stamping. That is, the cover 21 may be integrally press-formed, the case 22 may be integrally press-formed, or both the cover 21 and the case 22 may be integrally press-formed. Like this, integrative stamping forming has guaranteed the complete and level of connecting the face, has improved battery box 2's sealed effect.

In some embodiments of the present invention, a sealing member is disposed between the cover 21 and the bottom bracket 1, and/or an elastic member is disposed between the cover 21 and the box 22. Thus, the provision of the seal member between the lid body 21 and the bottom plate ensures the sealing performance in the passenger compartment, and the provision of the elastic member between the lid body 21 and the case body 22 ensures the sealing performance of the battery case 2.

Alternatively, the sealing member may be a sealant and the elastic member may be an elastic sealing strip.

In some embodiments of the present invention, the underbody assembly 100 further comprises: the high-low voltage plug connector 3 is arranged at the front end of the box body 22. From this, locate high-low pressure plug connector 3 on box 22, do not influence the later maintenance of lid 21 and box 22, the dismouting of being convenient for.

According to the embodiment of the second aspect of the present invention, the vehicle includes the underbody assembly 100 according to the embodiment of the first aspect of the present invention.

According to the utility model discloses the vehicle is through setting up the underbody assembly 100 of above-mentioned first aspect embodiment to improve the wholeness ability of vehicle, the integrated level of vehicle is higher, and automobile body spare part quantity is less, and the automobile body is sealed effectual, and simple structure, the assembly of being convenient for.

It should be noted here that the cover 21 of the battery box 2 is integrated with the vehicle body bottom plate, and can be connected with the bottom plate bracket 1 to ensure the sealing effect of the passenger compartment, bear the weight of the driver and passengers, improve the overall bearing performance of the vehicle body, and provide protection for the box body 22 of the battery box 2 to ensure the sealing performance of the battery box 2.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An underbody assembly, comprising:

a base plate bracket;

the battery box, the battery box includes lid and box, the lid with the bottom plate support links to each other, the lid with the box cooperation is injectd and is held the chamber and be used for holding battery monomer.

2. The vehicle underbody assembly of claim 1, wherein the cover is formed with a first flange extending in a circumferential direction of the cover, the first flange being connected to the floor bracket.

3. The underbody assembly of claim 2, in which the first flanges are welded to the floor bracket.

4. The underbody assembly of claim 2, in which the box is formed with a second flange extending circumferentially of the box, the first flange being connected to the second flange.

5. The vehicle body bottom plate assembly as claimed in claim 4, wherein the box body is provided with a plurality of installation portions arranged at intervals, one ends of the installation portions are connected with the box body, the other ends of the installation portions extend horizontally towards a direction deviating from the box body and exceed the second flanging, installation holes are formed in the installation portions, and the box body penetrates through the installation holes through fasteners to be connected with the bottom plate support.

6. The vehicle underbody assembly of claim 1, in which the floor bracket comprises:

the cross beam extends along the left-right direction and comprises a first cross beam and a second cross beam;

the longitudinal beams extend along the front-back direction and comprise a first longitudinal beam, a second longitudinal beam and a third longitudinal beam;

the first cross beam is connected at two ends of the first longitudinal beam, the second cross beams are arranged between the first cross beams and connected with the first longitudinal beam, two ends of the second longitudinal beam are connected between the adjacent two second cross beams, and two ends of the third longitudinal beam are connected between the adjacent first cross beam and the second cross beam.

7. The underbody assembly of any one of claims 1 to 6, in which the cover is integrally stamped and formed and/or the tank is integrally stamped and formed.

8. The underbody assembly of any one of claims 1 to 6, wherein a seal is provided between the cover and the floor support and/or a resilient member is provided between the cover and the tank.

9. The underbody assembly of any one of claims 1 to 6, further comprising: the high-low voltage plug connector is arranged at the front end of the box body.

10. A vehicle characterized by comprising an underbody assembly according to any one of claims 1 to 9.

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