Vehicle body structure equipped with battery module

Abstract

The utility model provides a vehicle body structure assembled with a battery module, which belongs to the technical field of vehicle bodies and comprises a vehicle body floor and a partition plate component, the vehicle body floor comprises a front floor assembly and a rear floor assembly, the battery module comprises a plurality of battery modules, and the partition plate component comprises a plurality of partition plates. The front floor assembly and the rear floor assembly are each provided with an installation cavity used for installing the battery modules, each partition plate is installed in the corresponding installation cavity and divides the corresponding installation cavity into a plurality of installation cavity units matched with the battery modules, and the installation cavity units correspond to the battery modules one to one; wherein the side wall of the mounting cavity is provided with a plurality of mounting holes for mounting the battery modules, and each battery module is horizontally inserted into the corresponding mounting cavity unit through the corresponding mounting hole. According to the utility model, the space utilization rate and the cruising ability of the vehicle can be improved, the problem that the battery is inconvenient to mount / dismount / maintain is solved, the strength of the mounting cavity can be improved, and the anti-collision performance of the vehicle body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle bodies, in particular to a vehicle body structure for assembling a battery module. Background Art

[0002] The existing battery body structure is to install the battery under the front floor and connect the battery and the front floor with bolts. Due to the heavy weight of the battery and the battery installation from bottom to top, it is inconvenient to replace and repair the battery pack; in addition, the space under the front floor is limited and only specific batteries can be installed, resulting in low space utilization and poor range improvement. Utility Model Content

[0003] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0004] According to one aspect of the utility model, a vehicle body structure for assembling a battery module is provided. The vehicle body structure for assembling a battery module comprises:

[0005] A vehicle body floor, comprising a front floor assembly and a rear floor assembly, wherein the front floor assembly and the rear floor assembly are respectively provided with an installation cavity for installing a battery module, wherein the battery module comprises a plurality of battery modules;

[0006] A partition assembly, comprising a plurality of partitions, each of which is installed inside the mounting cavity and divides the mounting cavity into a plurality of mounting cavity units matching the plurality of battery modules, the mounting cavity units corresponding to the battery modules one by one;

[0007] Wherein, the side wall of the installation cavity is provided with a plurality of installation holes for installing the battery modules, and each battery module is horizontally inserted into the corresponding installation cavity unit through the corresponding installation hole.

[0008] According to an embodiment of the present utility model, the vehicle body structure further includes a sealing plate for sealing the mounting hole, and the sealing plate is connected to the outer side of the mounting cavity close to the mounting hole to seal the mounting cavity.

[0009] According to an embodiment of the present utility model, the front floor assembly includes:

[0010] A front lower bottom plate, the front lower bottom plate is recessed downward to form a U-shaped groove opening toward the interior of the vehicle;

[0011] A front cover plate, covering the notch of the U-shaped groove and surrounding it to form a cavity with first openings on left and right sides;

[0012] Wherein, the partition is inserted into the cavity and divides the first opening into a plurality of the mounting holes.

[0013] According to one embodiment of the utility model, the left and right sides of the front lower bottom plate are respectively provided with front lower bottom plate flanges bent outward and downward, the left and right sides of the front cover plate are provided with front cover plate flanges bent outward and upward, a threshold beam is connected between the front lower bottom plate flanges and the front cover plate flanges, the front lower bottom plate, the front cover plate and the two threshold beams are jointly arranged to form the installation cavity; wherein the threshold beam is provided with a through hole corresponding to the installation hole.

[0014] According to an embodiment of the present utility model, the outer side of the threshold beam is connected with the sealing plate, and the sealing plate is covered on the outer side of the through hole and is bolted to the threshold beam;

[0015] Wherein, a sealing strip is provided between the sealing plate and the door sill beam.

[0016] According to an embodiment of the utility model, a first front floor cross beam is provided at the bottom of the front floor assembly, a top end of the first front floor cross beam abuts against the bottom wall of the installation cavity, and two ends of the first front floor cross beam are respectively connected to the corresponding door sill beams;

[0017] A second front floor cross beam is disposed on the top of the front floor assembly, and both ends of the second front floor cross beam are connected to the door sill beam.

[0018] According to an embodiment of the utility model, a first sealing layer is provided at the connection between the front lower base plate and the front cover plate.

[0019] According to an embodiment of the present utility model, the rear floor assembly includes:

[0020] A rear lower bottom plate, the rear lower bottom plate is recessed downward to form a mounting groove, and the notch of the mounting groove faces the interior of the vehicle;

[0021] A rear cover plate, covering the notch of the installation slot and surrounding the notch to form the installation cavity;

[0022] Wherein, a second opening is formed on the rear groove wall of the installation groove, and the partition plate is inserted into the installation cavity and divides the second opening into a plurality of the installation holes.

[0023] According to one embodiment of the utility model, the left and right sides of the rear lower floor are respectively provided with rear lower floor flanges extending toward the outside of the vehicle, the left and right sides of the rear cover are respectively provided with rear cover flanges extending toward the outside of the vehicle, the rear cover flanges are connected to the top surface of the rear lower floor flanges, and a second sealing layer is provided between the rear cover flanges and the rear lower floor flanges.

[0024] According to one embodiment of the utility model, a rear beam is connected below the rear lower floor panel flange, a rear floor cross beam is provided at the bottom of the rear floor assembly, and both ends of the rear floor cross beam are connected to the rear beam.

[0025] Compared with the prior art, the utility model has the following advantages or beneficial effects:

[0026] The utility model can make full use of the space of the front and rear floors, improve space utilization and vehicle endurance; the battery module installation direction is changed from the up and down direction to the horizontal direction, and the integral battery pack is replaced with multiple battery modules, so that the weight of a single battery module is low, which is convenient for battery installation / disassembly / repair. Finally, the partition can not only partition the installation cavity, but also provide certain support for the installation cavity, which can prevent the installation cavity from collision and deformation, and improve the collision safety of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0028] Figure 1 FIG. 1 is a schematic diagram showing a vehicle body structure equipped with a battery module according to an exemplary embodiment.

[0029] Figure 2 FIG. 1 is an exploded view of a vehicle body structure equipped with a battery module according to an exemplary embodiment.

[0030] Figure 3 FIG. 1 is a bottom view of a vehicle body structure equipped with a battery module according to an exemplary embodiment.

[0031] Figure 4 yes Figure 1 Schematic diagram of the cross section at AA in the middle.

[0032] Figure 5 yes Figure 1 Schematic diagram of the cross section at BB in the middle.

[0033] Figure 6 yes Figure 3 Schematic diagram of the cross section at CC

[0034] Figure 7 yes Figure 6 Enlarged schematic diagram of point A in the middle

[0035] The reference numerals are described as follows:

[0036] 1. Vehicle body floor; 10. Front floor assembly; 101. Front lower floor; 1011. Front lower floor flange; 102. Front cover; 1021. Front cover flange; 103. First sealing layer; 11. Rear floor assembly; 111. Rear lower floor; 1111. Rear lower floor flange; 112. Rear cover; 1121. Rear cover flange; 100. Installation cavity; 113. Second sealing layer; 2. Battery module; 21. Battery module; 3. Partition assembly; 31. Partition; 4. Sealing plate; 5. Door sill beam; 6. First front floor beam; 7. Second front floor beam; 8. Rear beam; 9. Rear floor beam. DETAILED DESCRIPTION

[0037] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0038] The terms "a", "an", "the", "" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0039] A vehicle body structure for assembling a battery module according to an embodiment of the utility model is as follows: Figure 1-7The vehicle body structure for assembling the battery module shown includes a vehicle body floor 1, a battery module 2 and a partition assembly 3, wherein the vehicle body floor 1 includes a front floor assembly 10 and a rear floor assembly 11, the battery module 2 includes a plurality of battery modules 21, the partition assembly 3 includes a plurality of partitions 31, the front floor assembly 10 and the rear floor assembly 11 are respectively provided with an installation cavity 100 for installing the battery module 2, each partition 31 is installed inside the installation cavity 100, and divides the installation cavity 100 into a plurality of installation cavity units matching the plurality of battery modules 21, and the installation cavity units and the battery modules 21 correspond one to one; wherein the side walls of the installation cavity 100 correspond to the plurality of installation holes of the battery module 21, so that each battery module 21 is inserted into the installation cavity unit through the corresponding installation hole. The present application provides installation cavities 100 in the front floor assembly 10 and the rear floor assembly 11 respectively, making full use of the space of the front and rear floors, increasing the space utilization rate by 40%, and correspondingly increasing the battery life by 40%; in addition, the present application replaces the integral battery pack in the prior art with multiple battery modules 21, effectively reducing the weight of a single battery; and then uses multiple partitions 31 to divide the installation cavity into mutually independent installation cavity units, preferably the sizes of the installation cavity units are consistent, and the positions of the battery modules 21 can be interchanged, reducing the alignment process of installation and maintenance, and improving the efficiency of installation and maintenance. In addition, the installation holes are provided on the side walls of the installation cavity units so that the battery module 21 can be horizontally inserted into the installation cavity unit from the installation holes, and the manual installation / disassembly of the battery module 21 can be realized, which is convenient for the maintenance and replacement of the battery module. Finally, the middle part of the partition 31 of the present application is provided with a through hole along its axial direction, and the partition 31 is provided inside the installation cavity 100 to provide certain support for the installation cavity 100, which can prevent the installation cavity 100 from collision and deformation, and improve the collision safety of the battery.

[0040] In a preferred embodiment of the present invention, Figure 1-4 The vehicle body structure shown also includes a sealing plate 4 for sealing the mounting hole, and the sealing plate 4 is connected to the outer side of the mounting cavity 100 near the mounting hole to seal the mounting cavity 100. The sealing plate 4 can make each mounting cavity unit a sealed cavity, prevent water from entering the cavity, and improve the safety performance of the battery module 21.

[0041] In a preferred embodiment of the present invention, Figure 1-3The front floor assembly 10 shown in , 5 and 6 includes a front lower floor plate 101 and a front cover plate 102. The front lower floor plate 101 is recessed downward to form a U-shaped groove with an opening facing the interior of the vehicle; the front cover plate 102 is covered on the notch of the U-shaped groove and surrounded by it to form a cavity with a first opening on the left and right sides; the front lower floor plate 101 in the present application is formed by injection molding of a thermoformed high-strength material with high strength, and the front cover plate 102 is molded with a plastic part, which can meet the design requirements of lightweight products. Since the front lower floor plate 101 is formed in one piece without a split, the U-shaped groove opens toward the interior of the vehicle, and the front cover plate 102 is covered in the U-shaped groove, the lap joint between the front cover plate 102 and the front lower floor plate 101 will be located in the dry area of ​​the vehicle, which can reduce the risk of water entering the cavity.

[0042] In addition, the partition 31 in the present application is inserted between the front lower base plate 101 and the front cover plate 102, and can divide the cavity between the front lower base plate 101 and the front cover plate 102. At the same time, the partition 31 can separate the first opening into multiple installation holes to facilitate the insertion of the battery module 21 into the installation cavity unit. The structure is simple and convenient for battery installation, disassembly and maintenance.

[0043] In a preferred embodiment of the present invention, Figure 1-3 , 5 and 6, the left and right sides of the front lower bottom plate 101 are respectively bent outward and downward, the left and right sides of the front cover plate 102 are provided with front cover plate flanges 1021 bent outward and upward, the threshold beam 5 is connected between the front lower bottom plate flanges 1011 and the front cover plate flanges 1021, and the front lower bottom plate 101, the front cover plate 102 and the two threshold beams 5 are jointly arranged to form the installation cavity 100; wherein the threshold beam 5 is provided with a through hole corresponding to the installation hole. The front lower bottom plate 101, the front cover plate 102 and the two threshold beams 5 can not only jointly enclose the installation cavity 100, but also improve the strength of the installation cavity 100 and improve the anti-collision performance.

[0044] In a preferred embodiment of the present invention, Figure 1-3 The outer side of the threshold beam 5 shown in 5-7 is connected with a sealing plate 4, which is covered on the outer side of the through hole and bolted to the threshold beam 5; wherein a sealing strip 41 is provided between the sealing plate 4 and the threshold beam 5. The sealing strip 41 and the sealing plate 4 are detachably mounted on the threshold beam 5, so that the sealing of the installation cavity 100 and the installation cavity unit can be ensured, water can be prevented from entering the battery, and the battery service life can be improved.

[0045] In a preferred embodiment of the present invention, Figure 1-3, 5-6, a first front floor cross beam 6 is provided at the bottom of the front floor assembly 10, the top of the first front floor cross beam 6 abuts against the bottom wall of the installation cavity 100, and the two ends of the first front floor cross beam 6 are respectively connected to the corresponding door sill beam 5; a second front floor cross beam 7 is provided at the top of the front floor assembly 10, and the two ends of the second front floor cross beam 7 are connected to the door sill beam 5. By overlapping the two ends of the first front floor cross beam 6 on the door sill beam 5, it can be ensured that the strength of the front floor assembly 10 meets the design requirements, and the anti-collision performance of the installation cavity 100 and the battery is improved.

[0046] In a preferred embodiment of the present invention, Figure 1-3 A first sealing layer 103 is provided at the connection between the front lower base plate 101 and the front cover plate 102 shown in 5-6. The connection between the front lower base plate 101 and the front cover plate 102 is located inside the vehicle. By providing a sealing layer 103 at the connection between the front lower base plate 101 and the front cover plate 102, water can be prevented from entering the installation cavity 100 from the connection between the front lower base plate 101 and the front cover plate 102, thereby effectively protecting the battery module 2. In the present application, the first sealing layer 103 can be a sealant or a sealing ring, etc., which is not limited here, as long as the connection between the front lower base plate 101 and the front cover plate 102 can be sealed.

[0047] In a preferred embodiment of the present invention, Figure 1-4 The rear floor assembly 11 shown includes: a rear lower floor plate 111 and a rear cover plate 112. The rear lower floor plate 111 is recessed downward to form a mounting groove, and the groove opening of the mounting groove faces inward; the rear cover plate 112 is covered with the groove opening of the mounting groove and surrounded by it to form a mounting cavity 100; wherein the rear groove wall of the mounting groove is provided with a second opening, and the partition plate 31 is inserted into the mounting cavity 100 and divides the second opening into a plurality of mounting holes. The rear groove wall of the mounting groove of this embodiment is relative to the rear of the vehicle body, such as Figure 2 As shown, by providing a second opening in the rear groove wall of the mounting groove, the installation, disassembly and maintenance of the battery module 21 are facilitated. In addition, the rear lower floor 111 of the present application is formed by injection molding of a thermoformed high-strength material, and the material has high strength. The rear cover 112 is molded with a plastic part, which can meet the design requirements of lightweight products. Preferably, the front lower floor 101 and the rear lower floor 111 are integrally formed, and the front cover 102 and the rear cover 112 are integrally formed with exposed welds to ensure sealing, so that the entire lower floor and upper cover of the vehicle body structure reduce parts and improve installation efficiency. In addition, since the rear lower floor 111 adopts an integrally formed exposed weld, and the opening of the mounting groove faces the interior of the vehicle, the connection between the rear cover 112 and the rear lower floor 111, that is, the lap seam, is also located in the dry area of ​​the vehicle, which can reduce the risk of water ingress into the cavity.

[0048] In a preferred embodiment of the present invention, Figure 1-4The rear lower bottom plate 111 shown is provided with rear lower bottom plate flanges 1111 extending to the outside of the vehicle on the left and right sides, and the rear cover plate 112 is provided with rear cover plate flanges 1121 extending to the outside of the vehicle on the left and right sides, respectively. The rear cover plate flanges 1121 are connected to the top surface of the rear lower bottom plate flanges 1111, and a second sealing layer 113 is provided between the rear cover plate flanges 1121 and the rear lower bottom plate flanges 1111. The rear lower bottom plate 111 is recessed downward to form a mounting groove with a notch on the top, and the rear cover plate 112 is covered in the notch of the mounting groove. The rear cover plate flanges 1121 and the rear lower bottom plate flanges 1111 make the connection strength of the two better; the second sealing layer 113 can be a sealant or a sealing ring, etc., as long as the connection between the rear lower bottom plate 111 and the rear cover plate 112 can be sealed, otherwise moisture will enter the mounting cavity 100, thereby improving the sealing of the cavity.

[0049] In a preferred embodiment of the present invention, Figure 1-4 The rear lower floor panel flange 1111 shown is connected to the rear beam 8 below, and the rear floor cross beam 9 is provided at the bottom of the rear floor assembly 11, and the two ends of the rear floor cross beam 9 are connected to the rear beam 8. In this way, the strength of the rear lower floor panel 111 is effectively improved, the structural strength of the vehicle body structure is improved, and the anti-collision performance of the vehicle body is improved.

[0050] In the embodiments of the present invention, the term "multiple" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0051] In the description of the embodiments of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0052] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle body structure for assembling a battery module, characterized in that: include: A vehicle body floor (1) comprises a front floor assembly (10) and a rear floor assembly (11), wherein the front floor assembly (10) and the rear floor assembly (11) are respectively provided with a mounting cavity (100) for mounting a battery module (2), wherein the battery module (2) comprises a plurality of battery modules (21); A partition assembly (3), comprising a plurality of partitions (31), each of the partitions (31) being installed inside the installation cavity (100) and dividing the installation cavity (100) into a plurality of installation cavity units matching the plurality of battery modules (21), the installation cavity units corresponding to the battery modules (21) one by one; Wherein, a plurality of mounting holes for mounting the battery modules (21) are provided on the side wall of the mounting cavity (100), and each battery module (21) is horizontally inserted into the corresponding mounting cavity unit through the corresponding mounting hole.

2. The vehicle body structure for assembling a battery module according to claim 1, characterized in that: It also comprises a sealing plate (4) for sealing the mounting hole, wherein the sealing plate (4) is connected to the outer side of the mounting cavity (100) close to the mounting hole to seal the mounting cavity (100).

3. The vehicle body structure for assembling a battery module according to claim 2, characterized in that: The front floor assembly (10) comprises: A front lower bottom plate (101), wherein the front lower bottom plate (101) is recessed downward to form a U-shaped groove with an opening facing the interior of the vehicle; A front cover plate (102) is arranged to cover the notch of the U-shaped groove and surround it to form a cavity with first openings on left and right sides; Wherein, the partition plate (31) is inserted into the cavity and divides the first opening into a plurality of the mounting holes.

4. The vehicle body structure for assembling a battery module according to claim 3, characterized in that: The left and right sides of the front lower bottom plate (101) are respectively provided with front lower bottom plate flanges (1011) bent outward and downward, and the left and right sides of the front cover plate (102) are provided with front cover plate flanges (1021) bent outward and upward, and a threshold beam (5) is connected between the front lower bottom plate flanges (1011) and the front cover plate flanges (1021), and the front lower bottom plate (101), the front cover plate (102) and the two threshold beams (5) are jointly arranged to form the installation cavity (100); wherein the threshold beam (5) is provided with a through hole corresponding to the installation hole.

5. The vehicle body structure for assembling a battery module according to claim 4, characterized in that: The outer side of the threshold beam (5) is connected to the sealing plate (4), and the sealing plate (4) is covered on the outer side of the through hole and is bolted to the threshold beam (5); Wherein, a sealing strip (41) is provided between the sealing plate (4) and the door sill beam (5).

6. The vehicle body structure for assembling a battery module according to claim 5, characterized in that: A first front floor cross beam (6) is provided at the bottom of the front floor assembly (10), the top end of the first front floor cross beam (6) abuts against the bottom wall of the installation cavity (100), and the two ends of the first front floor cross beam (6) are respectively connected to the corresponding door sill beam (5); A second front floor cross beam (7) is provided on the top of the front floor assembly (10), and both ends of the second front floor cross beam (7) are connected to the door sill beam (5).

7. The vehicle body structure for assembling a battery module according to claim 3, characterized in that: A first sealing layer (103) is provided at the connection between the front lower base plate (101) and the front cover plate (102).

8. The vehicle body structure for assembling a battery module according to claim 2, characterized in that: The rear floor assembly (11) comprises: A rear lower bottom plate (111), the rear lower bottom plate (111) being recessed downward to form a mounting groove, the notch of the mounting groove facing the interior of the vehicle; A rear cover plate (112) is arranged to cover the notch of the installation slot and surround the installation slot to form the installation cavity (100); The rear groove wall of the installation groove is provided with a second opening, and the partition plate (31) is inserted into the installation cavity (100) and divides the second opening into a plurality of installation holes.

9. The vehicle body structure for assembling a battery module according to claim 8, characterized in that: The left and right sides of the rear lower bottom plate (111) are respectively provided with rear lower bottom plate flanges (1111) extending toward the outside of the vehicle, and the left and right sides of the rear cover plate (112) are respectively provided with rear cover plate flanges (1121) extending toward the outside of the vehicle, the rear cover plate flanges (1121) are connected to the top surface of the rear lower bottom plate flanges (1111), and a second sealing layer (113) is provided between the rear cover plate flanges (1121) and the rear lower bottom plate flanges (1111).

10. The vehicle body structure for assembling a battery module according to claim 9, characterized in that: A rear beam (8) is connected below the rear lower floor flange (1111), a rear floor cross beam (9) is provided at the bottom of the rear floor assembly (11), and two ends of the rear floor cross beam (9) are connected to the rear beam (8).

Images