Vehicle body assembly and vehicle

Abstract

The invention discloses a vehicle body assembly and a vehicle, the vehicle body assembly comprises a vehicle frame, the vehicle frame comprises a longitudinal beam and a bottom plate assembly, the bottom plate assembly is connected with the longitudinal beam, and a containing space with an upward opening is formed in the bottom plate assembly; the battery assembly comprises an upper cover plate and a battery cell module, the upper surface of the battery cell module is fixedly connected with the upper cover plate, and the upper cover plate covers the containing space and is fixedly connected with the frame and the bottom plate assembly, so that the battery cell module is located in the containing space. Wherein the upper side of the battery cell module is fixed on the upper cover plate, and the upper cover plate is connected with the vehicle frame, so that the battery cell module is integrated on the vehicle body assembly, the overall rigidity of the battery cell module is improved, and the influence of torsion deformation of the girder on the battery cell module is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vehicle body assembly and a vehicle. Background Art

[0002] Vehicles usually include a body and a chassis frame. As important components of a vehicle, the body frame and chassis are integrated platforms for the vehicle, providing mechanical, electrical, and pneumatic interfaces for various related systems of the vehicle, as well as bearing various dynamic loads and various additional loads generated during the driving process of the vehicle. With the development of vehicle design, lightweight vehicles have gradually become the mainstream in design.

[0003] In the related art, the battery pack is connected to the frame by a fixing method with lifting ears, and the vehicle integration and system rigidity are low. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a vehicle body assembly, in which a battery cell module is fixed on an upper cover plate, and the upper cover plate is connected to a vehicle frame, thereby integrating the battery cell module on the vehicle body assembly, improving the overall rigidity of the battery cell module, and effectively reducing the influence of the torsional deformation of the beam on the battery cell module.

[0005] The present invention also provides a vehicle.

[0006] According to the first aspect of the present invention, the vehicle body assembly includes: a vehicle frame, including: a longitudinal beam and a floor assembly, the floor assembly is connected to the longitudinal beam, and a storage space with an upward opening is formed in the floor assembly; a battery assembly includes: an upper cover plate and a battery cell module, the upper surface of the battery cell module is fixedly connected to the upper cover plate, the upper cover plate is covered in the storage space and is fixedly connected to the vehicle frame and the floor assembly so that the battery cell module is located in the storage space.

[0007] According to the vehicle body assembly of the first aspect of the present invention, the upper side of the battery cell module is fixed on the upper cover plate, and the upper cover plate is connected to the vehicle frame, thereby integrating the battery cell module into the vehicle body assembly, improving the overall rigidity of the battery cell module, and effectively reducing the influence of the torsional deformation of the beam on the battery cell module.

[0008] According to some embodiments of the present invention, the battery assembly further comprises: a support plate, one end of which is connected to the upper cover plate and the other end of which is connected to the battery cell module.

[0009] According to some embodiments of the present invention, the support plate includes: a first plate portion, a second plate portion and a third plate portion connected in sequence, the first plate portion is fixedly connected to the lower surface of the upper cover plate, the second plate portion is fixedly connected to the side of the battery cell module, and the third plate portion is fixedly connected to a side of the battery cell module facing away from the upper cover plate.

[0010] According to some embodiments of the present invention, a through hole is provided on the second plate portion, and an electrical connector is provided on the battery core module, and the electrical connector passes through the through hole to perform electrical connection.

[0011] According to some embodiments of the present invention, the bottom plate assembly includes: a bottom plate and a plurality of side plates, wherein the plurality of side plates are connected to the peripheral side of the bottom plate, and the plurality of side plates are connected to the longitudinal beam and the upper cover plate.

[0012] According to some embodiments of the present invention, the base plate assembly further includes: a cooling plate, the cooling plate is connected to the base plate and constitutes a bottom wall of the accommodating space, and a first cooling channel for circulating a coolant is provided in the cooling plate.

[0013] According to some embodiments of the present invention, a second cooling channel for circulating cooling liquid is provided in the bottom plate, and the bottom plate constitutes a bottom wall of the accommodating space.

[0014] According to some embodiments of the present invention, the vehicle body assembly further includes: a heat conductive member, wherein the heat conductive member is disposed between a bottom wall of the accommodating space and a lower surface of the battery cell module.

[0015] According to some embodiments of the present invention, a sealing gasket is provided between at least one side wall of the accommodating space and the battery cell module.

[0016] A vehicle according to an embodiment of the second aspect of the present invention includes: the vehicle body assembly.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 is a structural schematic diagram of a vehicle body assembly according to an embodiment of the present invention; Figure 2 is an exploded view of a vehicle body assembly in one direction according to an embodiment of the present invention; Figure 3 is an exploded view of a vehicle body assembly according to an embodiment of the present invention from another direction; Figure 4 is an exploded view of a vehicle body assembly according to an embodiment of the present invention in another direction; Figure 5 is a schematic structural diagram of a support plate according to an embodiment of the present invention.

[0019] Reference numerals: 100. Body assembly; 10. Frame; 11. Longitudinal beam; 20. Bottom plate assembly; 21. Accommodation space; 22. Bottom plate; 23. Side plate; 30. Battery assembly; 31. Upper cover; 32. Battery cell module; 321. Electrical connector; 33. Support plate; 331. First plate portion; 332. Second plate portion; 333. Third plate portion; 334. Through hole. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0021] Reference below Figure 1-Figure 5 A vehicle body assembly 100 according to an embodiment of the present invention is described, and a vehicle including the vehicle body assembly 100 is also provided.

[0022] like Figure 1-Figure 4 As shown, the vehicle body assembly 100 includes: a vehicle frame 10 and a battery assembly 30. The vehicle frame 10 includes: a longitudinal beam 11 and a floor assembly 20. The floor assembly 20 is connected to the longitudinal beam 11. The floor assembly 20 is installed on the longitudinal beam 11. A receiving space 21 with an upward opening is formed in the floor assembly 20. The receiving space 21 can be used to receive a battery cell module 32. The floor assembly 20 and the battery assembly 30 form a battery pack, that is, the battery pack is integrated on the vehicle frame 10.

[0023] like Figure 2 As shown, the battery assembly 30 includes: an upper cover plate 31 and a cell module 32. The upper surface of the cell module 32 is fixedly connected to the upper cover plate 31. The upper cover plate 31 covers the accommodation space 21 and is fixedly connected to the longitudinal beam 11 and the bottom plate assembly 20, so that the cell module 32 is located in the accommodation space 21. Specifically, the cell module 32 is fixed on the upper cover plate 31, and the upper cover plate 31 is then fixed on the longitudinal beam 11. The upper surface of the cell module 32 is fixedly connected to the upper cover plate 31, and the upper cover plate 31 serves as the main support for the cell module 32.

[0024] Combination Figure 1-Figure 4 As shown, the bottom plate assembly 20 is located on the inner side of the vehicle frame 10, and the bottom plate assembly 20 is connected to the upper cover plate 31, so that the upper cover plate 31 is covered above the accommodating space 21, and the battery module 32 is arranged in the accommodating space 21, thereby forming a battery pack. The bottom plate assembly 20 is wrapped around the outer periphery of the battery module 32, and the bottom plate assembly 20 and the upper cover plate 31 form the outer shell of the battery module 32, which plays a role in protecting the battery module 32. The battery module 32 is integrated into the vehicle body assembly to prevent the battery module 32 from escaping from the accommodating space 21 due to bumps or collisions during normal driving of the vehicle formed by the vehicle body assembly 100, thereby affecting the normal driving of the entire vehicle.

[0025] During packaging, the battery assembly 30 can be hoisted into the accommodating space 21 as a whole, which is simple to operate and has high installation efficiency. The present invention eliminates the battery pack tray, fixes the battery module 32 on the upper cover 31, and realizes an inverted installation of the battery module 32, accommodates the battery module 32 in the accommodating space 21, and integrates the battery module 32 on the frame 10.

[0026] In the related art, the battery cell module is supported by a battery tray below; in this solution, the battery cell module 32 is fixedly installed by an upper cover plate 31 above, and the upper cover plate 31 bears the weight of the battery cell module 32.

[0027] The battery module 32 is integrated into the vehicle frame 10 to achieve a lightweight setting for the vehicle. The battery pack tray, the lifting lugs and the independent battery pack cover are eliminated, which can increase the effective volume of the battery module 32 and improve the energy density of the battery module 32. In addition, the overall rigidity of the frame 10 is increased by integrating the floor assembly 20, which can effectively reduce the influence of the torsional deformation of the beam on the battery module 32.

[0028] Reference Figure 2-Figure 5 As shown, the battery assembly 30 further includes: a support plate 33, one end of the support plate 33 is connected to the upper cover plate 31 and the other end is connected to the battery module 32 to fix the battery module 32. That is to say, the support plate 33 extends between the upper cover plate 31 and the battery module 32, and part of the support plate 33 is fixedly connected to the upper cover plate 31. The support plate 33 can be fixedly connected to the upper cover plate 31 by riveting or welding, so as to realize the overall integration of the battery module 32 and the upper cover plate 31; another part of the support plate 33 extends to the side and lower surface of the battery module 32 and is fixedly connected to the battery module 32. The support plate 33 and the battery module 32 can be fixedly connected by bonding.

[0029] The support plate 33 is connected to the cell module 32 and the upper cover plate 31 to fix the cell module 32 on the upper cover plate 31. The cell module 32 and the upper cover plate 31 form a whole, which is convenient for the subsequent lifting of the battery assembly 30 in the accommodation space 21 to form a battery pack. The upper cover plate 31 is connected to the frame 10, and the frame 10 and the upper cover plate 31 serve as a structure to bear the weight of the cell module 32.

[0030] There may be two support plates 33 , and the two support plates 33 are respectively connected to the front side and the rear side of the battery module 32 to ensure the connection reliability between the battery module 32 and the upper cover plate 31 .

[0031] like Figure 4 and Figure 5As shown, the support plate 33 includes: a first plate portion 331, a second plate portion 332 and a third plate portion 333 which are connected in sequence, the first plate portion 331 is fixedly connected to the lower surface of the upper cover plate 31, the second plate portion 332 is fixedly connected to the side of the battery module 32, and the third plate portion 333 is fixedly connected to the side of the battery module 32 away from the upper cover plate 31. Specifically, the first plate portion 331 is fitted with and fixedly connected to the lower surface of the upper cover plate 31, so that the support plate 33 is fixedly connected to the upper cover plate 31; the second plate portion 332 is connected to the first plate portion 331, the second plate portion 332 is bent relative to the first plate portion 331, the second plate portion 332 extends along a vertical plane, the second plate portion 332 is fitted with and fixedly connected to the side of the battery module 32, so that the side of the battery module 32 is fixedly connected to the support plate 33; the third plate portion 333 is fixedly connected to the side of the battery module 32, and the second plate portion 333 is fixedly connected to the side of the battery module 32. The third plate portion 333 is connected to one end of the second plate portion 332 which faces away from the first plate portion 331. The third plate portion 333 is parallel to the first plate portion 331. The third plate portion 333 is bent relative to the second plate portion 332. The third plate portion 333 is fixedly connected to the lower surface of the battery cell module 32, thereby increasing the contact area between the support plate 33 and the battery cell module 32, improving the connection strength between the battery cell module 32 and the support plate 33, and ensuring the connection reliability between the battery cell module 32 and the upper cover plate 31.

[0032] like Figure 5 As shown, a through hole 334 is provided on the second plate portion 332, and an electrical connector 321 is provided on the battery module 32. The electrical connector 321 passes through the through hole 334 to make an electrical connection. Specifically, the electrical connector 321 protrudes from the surface of the battery module 32, and cooperates with the electrical connector 321 through the through hole 334. The second plate portion 332 is fixedly connected to the shell of the battery module 32, so that the battery module 32 and the upper cover plate 31 are connected through the support plate 33.

[0033] Among them, the battery cell module 32 includes: multiple electrical connectors 321, and there can be multiple through holes 334. The multiple electrical connectors 321 correspond to the multiple through holes 334 respectively, so as to facilitate the electrical connection of the battery cell module 32 through the electrical connectors 321; for example, it is convenient for the battery module 32 to be electrically connected with other components, such as: motors, high-voltage boxes, etc.

[0034] like Figure 4 As shown, electrical connectors 321 are provided on the front and rear sides of the battery cell module 32. There may be two support members, which respectively cooperate with the electrical connectors 321 on the front and rear sides of the battery cell module 32 to facilitate the electrical connectors 321 on the front and rear sides of the battery cell module 32 to be electrically connected to other electrical components after passing through the through holes 334.

[0035] Combination Figure 1 and Figure 4As shown, the longitudinal beam 11 includes: a left longitudinal beam 11 and a right longitudinal beam 11 which are arranged opposite to each other, and the upper cover plate 31 is fixedly connected to the upper sides of the left longitudinal beam 11 and the right longitudinal beam 11. Specifically, the vehicle frame 10 includes: a left longitudinal beam 11 and a right longitudinal beam 11, and the left longitudinal beam 11 and the right longitudinal beam 11 are symmetrical about the left and right directions. When the battery assembly 30 is hoisted on the vehicle frame 10, the upper cover plate 31 is located above the left longitudinal beam 11 and the right longitudinal beam 11, and the lower surface of the upper cover plate 31 is fixedly connected to the upper surface of the left longitudinal beam 11 and the right longitudinal beam 11, thereby installing the battery assembly 30 on the vehicle frame 10, and the upper cover plate 31 serves as the main structure for carrying the battery cell module 32.

[0036] like Figure 2 and Figure 3 As shown, the bottom plate assembly 20 includes: a bottom plate 22 and a plurality of side plates 23, the plurality of side plates 23 are interconnected with the peripheral side of the bottom plate 22, and the plurality of side plates 23 are connected with the longitudinal beam 11 and the upper cover plate 31. Specifically, the bottom plate 22 is fixedly connected with the lower sides of the plurality of side plates 23 to form the accommodating space 21. The plurality of side plates 23 constitute the side walls of the accommodating space 21, and the plurality of side plates 23 are interconnected, wherein some of the side plates 23 are fitted with and fixedly connected to the left longitudinal beam 11 and the right longitudinal beam 11; and the other part of the side plates 23 are fixedly connected with the left longitudinal beam 11 and the right longitudinal beam 11 on both sides along the width direction to form the accommodating space 21. The upper sides of the plurality of side plates 23 are fixedly connected with the upper cover plate 31 to ensure the sealing of the accommodating space 21, that is, to ensure the sealing of the battery pack.

[0037] Furthermore, there can be four side panels 23, and the peripheral sides of the bottom plate 22 are connected to the four side panels 23 to form a receiving space 21. When the battery assembly 30 is hoisted on the frame 10, the upper cover plate 31 is connected to the longitudinal beam 11, and the battery cell module 32 is located in the receiving space 21 to form a battery pack.

[0038] In some embodiments, the bottom plate assembly 20 further includes: a cooling plate, which is connected to the bottom plate 22 and constitutes the bottom wall of the accommodating space 21, and a first cooling channel for circulating coolant is provided in the cooling plate. Specifically, the cooling plate is provided on the bottom plate 22, the cooling plate is connected to the bottom plate 22, the cooling plate constitutes the bottom wall of the accommodating space 21, the lower surface of the battery cell module 32 abuts against the cooling plate, a first cooling channel is provided in the cooling plate, and coolant can circulate in the first cooling channel to cool the battery cell module 32; and the cooling plate supports the battery cell module 32.

[0039] In some embodiments, a second cooling channel for circulating coolant is provided in the bottom plate 22, and the bottom plate 22 constitutes the bottom wall of the accommodation space 21. In other words, the bottom plate 22 can be used as a cooling plate, and a second cooling channel is provided inside the bottom plate 22, and coolant can flow in the second cooling channel to cool the battery cell module 32. Then, the upper surface of the bottom plate 22 constitutes the bottom wall of the accommodation space 21, and the bottom plate 22 supports the battery cell module 32.

[0040] In some embodiments, the vehicle body assembly 100 further includes: a heat conductive member, which is disposed between the bottom wall of the accommodating space 21 and the lower surface of the battery cell module 32. Specifically, the heat conductive member may be a heat conductive adhesive, which is disposed on the bottom wall of the accommodating space 21, and which may be connected to the bottom wall of the accommodating space 21. When the battery assembly 30 is hoisted on the vehicle frame 10, the lower surface of the battery cell module 32 abuts against the heat conductive member, and the heat conductive member improves the heat dissipation efficiency of the battery cell module 32 and improves the cooling efficiency of the battery cell module 32.

[0041] In some embodiments, a seal is provided between the upper cover 31 and the frame 10. Specifically, a seal is provided between the upper cover 31 and the left longitudinal beam 11, the right longitudinal beam 11, and the side plate 23 to ensure the sealing of the accommodating space 21. Under the action of the gravity of the battery cell module 32, the upper cover 31 will form a natural compression on the sealing surface with the frame 10 and the bottom plate assembly 20, and the battery pack has high sealing reliability.

[0042] In some embodiments, a sealing gasket is provided between at least one side wall of the accommodation space 21 and the battery module 32. That is to say, a sealing gasket (not shown) is provided between the inner wall of at least one accommodation space 21 and the outer wall of the battery module 32, which is used to protect the battery module 32 from being damaged due to bumps or collisions during the driving process of the vehicle, thereby affecting the normal driving of the vehicle or causing an accident, etc.; on the other hand, it is used to ensure that when the battery module 32 is integrated on the frame 10, a sealed battery module 32 can be formed to prevent the vehicle from being affected by weather or the environment, causing rainwater and dust particles to enter the accommodation space 21, thereby damaging the battery module 32.

[0043] The vehicle according to the second embodiment of the present invention includes: a vehicle body assembly 100. The battery cell module 32 is integrated on the vehicle frame 10, and the lifting lug and battery pack tray are eliminated, thereby improving the integration of the vehicle.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0046] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle body assembly, characterized in that: [A1] includes: A vehicle frame (10) comprises: a longitudinal beam (11) and a floor assembly (20), wherein the floor assembly (20) is connected to the longitudinal beam (11), and a receiving space (21) with an opening facing upward is formed in the floor assembly (20); A battery assembly (30) comprises: an upper cover plate (31) and a cell module (32), wherein the upper surface of the cell module (32) is fixedly connected to the upper cover plate (31), and the upper cover plate (31) covers the accommodating space (21) and is fixedly connected to the longitudinal beam (11) and the bottom plate assembly (20), so that the cell module (32) is located in the accommodating space (21).

2. The vehicle body assembly according to claim 1, characterized in that: The battery assembly (30) further comprises: a support plate (33), one end of the support plate (33) being connected to the upper cover plate (31) and the other end of the support plate (33) being connected to the battery cell module (32).

3. The vehicle body assembly according to claim 2, characterized in that: The support plate (33) comprises: a first plate portion (331), a second plate portion (332), and a third plate portion (333) which are connected in sequence, wherein the first plate portion (331) is fixedly connected to the lower surface of the upper cover plate (31), the second plate portion (332) is fixedly connected to the side of the battery cell module (32), and the third plate portion (333) is fixedly connected to a side of the battery cell module (32) which faces away from the upper cover plate (31).

4. The vehicle body assembly according to claim 3, characterized in that: The second plate portion (332) is provided with a through hole (334), the battery core module (32) is provided with an electrical connector (321), and the electrical connector (321) passes through the through hole (334) to perform electrical connection.

5. The vehicle body assembly according to claim 1, characterized in that: The bottom plate assembly (20) comprises: a bottom plate (22) and a plurality of side plates (23), wherein the plurality of side plates (23) are connected to the peripheral side of the bottom plate (22), and the plurality of side plates (23) are connected to the longitudinal beam (11) and the upper cover plate (31).

6. The vehicle body assembly according to claim 5, characterized in that: The bottom plate assembly (20) further comprises: a cooling plate, the cooling plate being connected to the bottom plate (22) and constituting the bottom wall of the accommodating space (21), the cooling plate being provided with a first cooling channel for circulating a cooling liquid.

7. The vehicle body assembly according to claim 5, characterized in that: A second cooling channel for circulating cooling liquid is provided in the bottom plate (22), and the bottom plate (22) constitutes the bottom wall of the accommodating space (21).

8. The vehicle body assembly according to claim 6 or 7, characterized in that: Also includes: A heat conducting member, the heat conducting member being arranged between the bottom wall of the accommodating space (21) and the lower surface of the battery core module (32).

9. The vehicle body assembly according to claim 1, characterized in that: A sealing gasket is provided between at least one side wall of the accommodating space (21) and the battery core module (32).

10. A vehicle, characterized in that: include: The vehicle body assembly (100) as claimed in any one of claims 1 to 9.

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