Automobile body assembly and automobile

Abstract

The utility model discloses an automobile body assembly and an automobile. The automobile body assembly comprises an automobile body frame, wherein a hollow part is formed on the automobile body frame; the battery pack is installed on the vehicle body frame, the hollowed-out part is filled with an upper shell of the battery pack to form at least part of the floor, and a plurality of bosses are continuously arranged on the edge of the surface of the upper shell of the battery pack; the sealing assembly comprises a sealing plate and a gap arranged between the battery pack and the vehicle body frame and used for sealing the upper shell of the battery pack and the vehicle body frame, the outer side of the sealing plate is connected to the vehicle body frame, and the lower surface of the inner side of the sealing plate abuts against the boss downwards to form a sealed structure; compared with a sealing structure in the prior art, the automobile body assembly and the automobile have the advantages that effective sealing can be achieved, meanwhile, the overall connecting rigidity of the automobile body and the battery pack is improved, and the situation that the sealing structure deforms under some driving working conditions, and consequently the sealing structure loses efficacy is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a body component and an automobile. Background Art

[0002] With the development of new energy vehicles, the endurance of power batteries has gradually become the mainstream direction of new energy vehicle development. The endurance of power batteries mainly depends on the energy density of the battery pack. Under a certain volume, the more cells that can be accommodated, the higher the energy density of the battery pack. The installation method of new energy vehicle batteries has gradually developed from the traditional CTP installation (battery pack-non-integrated floor + body) to CTB installation (i.e. battery pack-integrated floor + body). This structural method removes the front floor parts of the body and replaces the front floor of the body with the upper shell of the battery pack. It can effectively reduce the number of parts and increase the utilization of human-machine space. More cells can be placed in a limited space, thereby improving the battery energy density and the endurance of the power battery. In the existing CTB installation method, the sealing plate used to seal the gap between the battery pack and the body frame is an integrated frame structure. At the same time, because one side of the sealing plate is fixedly connected to the body frame and the other side constitutes a cantilever structure, under certain working conditions, the sealing plate will deform, causing the sealing foam used to seal the gap between the sealing plate and the battery pack to deform, causing the seal to fail.

[0003] Therefore, there is an urgent need to develop a body assembly and a car that, compared with the sealing structure of the prior art, can form an effective seal while improving the overall connection stiffness between the body and the battery pack, and prevent the sealing structure from deforming under certain driving conditions, causing the sealing structure to fail. Summary of the invention

[0004] In view of this, the purpose of the utility model is to provide a body assembly and a car, which, compared with the sealing structure of the prior art, can form an effective seal while improving the overall connection stiffness between the body and the battery pack, and prevent the sealing structure from deforming under certain driving conditions, causing failure of the sealing structure.

[0005] The vehicle body assembly of the utility model comprises:

[0006] A body frame, wherein a hollow portion is formed on the body frame;

[0007] A battery pack, the battery pack being mounted on the vehicle body frame and the upper shell of the battery pack filling the hollow portion to form at least a portion of the floor, and a plurality of bosses being continuously provided on the edge of the upper shell surface of the battery pack;

[0008] The sealing assembly includes a sealing plate, which is arranged between the battery pack and the vehicle body frame and is used to close the gap between the upper shell of the battery pack and the vehicle body frame. The outer side of the sealing plate is connected to the vehicle body frame, and the inner lower surface of the sealing plate is pressed downward against multiple bosses to form a closed structure. By setting the sealing plate, the gap between the upper shell of the battery pack and the vehicle body frame can be closed, thereby ensuring the sealing effect in the passenger compartment and preventing liquid or dust from entering the gap. At the same time, the sealing plate is connected to the vehicle body frame and the upper shell of the battery pack, which can prevent the sealing plate from being deformed and affecting the sealing effect under certain working conditions.

[0009] Furthermore, it also includes a seal, and the lower surface of the sealing plate is at least partially flat to form a sealing surface that cooperates with the seal, and the seal is arranged between the battery pack and the sealing surface to seal the battery pack and the sealing plate; the sealing surface presses downward against the seal, thereby ensuring the sealing effect, and the seal is a sealing foam with a certain elasticity, which can achieve a vibration reduction effect.

[0010] Furthermore, the sealing plate is arranged around the hollow portion and is a frame structure, including a sealing plate front section and a sealing plate rear section. A connecting protrusion is formed at one end of the sealing plate rear section close to the front section of the sealing plate, and the sealing plate front section is provided with a connecting portion adapted to the connecting protrusion, and the connecting portion abuts against the side wall of the connecting protrusion to form a connection; the sealing plate is divided into a sealing plate front section and a sealing plate rear section. Compared with the multi-section structure of the prior art, the flatness of the sealing plate can be improved to ensure the sealing effect.

[0011] Furthermore, a downwardly concave annular groove is formed on the sealing plate, and both sides of the annular groove are bent upward to form an inner flange and an outer flange respectively, and the lower surface of the annular groove forms the sealing surface, the outer flange is connected to the vehicle body frame, and the lower surface of the inner flange is connected to the multiple bosses; by forming the downwardly concave annular groove, the sealing surface can be pressed against the sealing component to ensure the sealing effect, and at the same time the upper space can be saved.

[0012] Further, the vehicle body frame includes a left sill beam, a right sill beam, a front cabin and a rear floor, the left sill beam and the right sill beam are arranged opposite to each other, two ends of the front cabin are respectively connected to the front ends of the left sill beam and the right sill beam, two ends of the rear floor are respectively connected to the rear ends of the left sill beam and the right sill beam, and the left sill beam, the right sill beam, the front cabin and the rear floor together surround the hollow portion;

[0013] The battery pack is installed at least on the left sill beam and the right sill beam; the upper shell of the battery pack is filled with the hollow part to form a car floor, and there is no need to set up an additional floor structure, which can save the Z-direction space of the car body, thereby increasing the distance between the battery pack and the ground and reducing the probability of battery pack damage.

[0014] Furthermore, the vehicle body frame also includes a seat front mounting crossbeam and a seat rear mounting crossbeam, the seat front mounting crossbeam spans the hollow portion in the left-right direction, and the seat rear mounting crossbeam is connected between the seat front mounting crossbeam and the front engine compartment in the front-to-back direction; the seat front mounting crossbeam is connected to the left and right door sill beams, and the seat rear mounting crossbeam is connected between the seat front mounting crossbeam and the front engine compartment, which can improve the structural strength of the vehicle body frame.

[0015] Furthermore, the front section and the rear section of the sealing plate are U-shaped structures, the upper surface of the front section of the sealing member is connected to the lower surfaces of the front mounting beam and the rear mounting beam of the seat, and the rear section of the sealing member is fixedly connected to the rear floor; the front section and the rear section of the sealing plate are respectively connected to different parts of the vehicle body frame, which is convenient for separate supply during the production process. Compared with the prior art, the sealing plate is supplied as a single piece as a whole, which can avoid deformation of the sealing plate during transportation.

[0016] Furthermore, the edge of the upper shell of the battery pack is recessed downward to form a supporting portion, the sealing surface is located above the supporting portion, the sealing member is arranged on the supporting portion and is adapted to the shape of the annular groove, and the sealing surface presses downward against the upper surface of the sealing member to form a sealing structure; the sealing surface presses downward against the upper surface of the sealing member to improve the sealing effect.

[0017] Furthermore, the outer flanges are respectively connected to the left sill beam, the right sill beam, the front engine compartment and the rear floor, and the lower surface of the inner flange is connected to the multiple bosses through a colloid; the outer flanges are respectively connected to the left sill beam, the right sill beam, the front engine compartment and the rear floor, and can fully close the gap between the vehicle body frame and the upper shell of the battery pack.

[0018] The utility model discloses a car, comprising the above-mentioned car body assembly.

[0019] Beneficial effects of the utility model: Compared with the sealing structure of the prior art, the body assembly and automobile of the utility model can form an effective seal. By arranging a boss on the upper shell of the battery pack, the sealing plate is connected to the body frame and the upper shell of the battery pack at the same time, thereby improving the overall connection stiffness between the body and the battery pack and preventing the sealing structure from deforming under certain driving conditions, which would cause failure of the sealing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2It is a schematic diagram of the structure of the vehicle body frame and the front section of the seal;

[0023] Figure 3 It is a schematic diagram of the structure at the interface between the front section of the seal and the rear section of the seal;

[0024] Figure 4 A schematic diagram of the structure of the connection between the right sill beam, the seal and the battery pack;

[0025] Figure 5 It is a schematic diagram of the structure of the battery pack and the vehicle body frame;

[0026] Figure 6 for Figure 5 A partial enlarged view of

[0027] The above drawings contain the following reference numerals:

[0028] 1. Right door sill beam; 2. Seal; 3. Sealing plate; 301. Front section of sealing plate; 3011. Connecting part; 302. Rear section of sealing plate; 3021. Connecting protrusion; 303. Inner flange; 304. Outer flange; 305. Ring groove; 4. Left door sill beam; 5. Battery pack; 501. Boss; 502. Upper shell; 503. Supporting part; 6. Rear floor; 7. Front cabin; 8. Mounting beam behind seats; 9. Mounting beam in front of seats; 10. Hollow part. DETAILED DESCRIPTION

[0029] Figure 1 It is a structural schematic diagram of the utility model. Figure 2 This is a schematic diagram of the structure of the body frame and the front section of the seal. Figure 3 It is a schematic diagram of the structure at the interface between the front section of the seal and the rear section of the seal. Figure 4 This is a schematic diagram of the structure of the connection between the right sill beam, seal and battery pack. Figure 5 This is a schematic diagram of the structure of the battery pack and the body frame. Figure 6 for Figure 5 A partial enlarged view of Figure 1-6 As shown: A body component of this embodiment includes:

[0030] A body frame, wherein a hollow portion 10 is formed on the body frame;

[0031] A battery pack 5, wherein the battery pack 5 is mounted on the vehicle body frame and the upper shell 502 of the battery pack 5 fills the hollow portion 10 to form at least a portion of the floor, and a plurality of bosses 501 are continuously provided on the edge of the surface of the upper shell 502 of the battery pack 5; the vehicle body frame is formed with a hollow portion 10, and the upper shell 502 of the battery pack 5 can fill the hollow portion 10 to form a floor, wherein the rigidity of the portion of the upper shell 502 of the battery pack 5 forming the floor can be higher than the rigidity of other portions of the battery pack 5 to support objects in the passenger compartment, so that the battery pack 5 is integrated with the function of a floor, and the vehicle body does not need to be provided with a floor, thereby reducing the number of components and parts, and at the same time, it can facilitate the installation of the battery pack 5, which is beneficial to improving the space utilization rate of the vehicle body. Since there is no need to additionally provide a floor, the distance from the battery pack 5 to the ground can be increased in the vertical direction of the vehicle, which can reduce the probability of the battery pack 5 being damaged;

[0032] The sealing assembly includes a sealing plate 3, which is arranged between the battery pack 5 and the vehicle body frame to close the gap between the upper shell 502 of the battery pack 5 and the vehicle body frame. The outer side of the sealing plate 3 is connected to the vehicle body frame, and the inner lower surface of the sealing plate 3 is pressed downward against multiple bosses 501 to form a closed structure; the sealing plate 3 is arranged around the hollow portion 10 and is located between the battery pack 5 and the vehicle body frame to close the gap between the upper shell 502 of the battery pack 5 and the vehicle body frame. The sealing plate 3 can be welded to the vehicle body frame to ensure good sealing between the sealing plate 3 and the vehicle body frame, so that the bottom of the passenger compartment can be dustproof and water-proof to avoid In order to prevent dust or liquid from entering the passenger compartment from the bottom of the passenger compartment, a plurality of bosses 501 are continuously arranged on the edge of the upper shell 502 of the battery pack 5 (that is, the plurality of bosses 501 are continuously arranged at intervals along the edge of the upper shell 502 of the battery pack 5), and the outer upper surface of the sealing plate 3 is connected to the vehicle body frame (the outer side is the side away from the seat inside the passenger compartment, and the inner side is the side close to the seat inside the passenger compartment), and the inner lower surface of the sealing plate 3 presses downward against the plurality of bosses 501, so that the inner side of the sealing plate 3 does not form a cantilever structure, which can improve the connection stiffness of the closed structure and avoid deformation of the sealing plate 3 under certain working conditions, thereby preventing the sealing plate 3 from failing in sealing.

[0033] In the prior art, in the CTB installation method, the sealing plate used to seal the gap between the battery pack and the vehicle body frame is an integrated frame structure. At the same time, since one side of the sealing plate is fixedly connected to the vehicle body frame and the other side forms a cantilever structure, under certain operating conditions, the sealing plate will deform, causing the sealing foam used to seal the gap between the sealing plate and the battery pack to deform, resulting in seal failure. Compared with the sealing structure of the prior art, the vehicle body assembly and automobile of the utility model can form an effective seal while providing a boss on the upper shell of the battery so that the sealing plate is connected to the vehicle body frame while being connected to the upper shell of the battery pack, thereby improving the overall connection stiffness between the vehicle body and the battery pack and preventing the sealing structure from deforming under certain driving conditions, resulting in failure of the sealing structure.

[0034] In this embodiment, a seal 2 is also included, and the lower surface of the sealing plate 3 is at least partially flat to form a sealing surface that cooperates with the seal 2. The seal 2 is arranged between the battery pack 5 and the sealing surface to seal the battery pack 5 and the sealing plate 3; the seal 2 can be a sealing foam, and the seal 2 is arranged between the sealing plate 3 and the upper shell 502 of the battery pack 5, which can fill the gap between the battery pack 5 and the sealing plate 3. At the same time, the lower surface of the sealing plate 3 forms a sealing surface that cooperates with the seal 2, and the sealing surface presses downward against the seal 2 (downward is the up and down direction relative to the vehicle body), so that the vehicle body frame, the sealing plate 3, the seal 2 and the battery pack 5 are all sealed, which can further improve the sealing effect of the passenger compartment. At the same time, because the seal 2 is elastic, it can cushion the battery pack 5 when the vehicle body shakes, thereby reducing the vibration and noise of the battery pack 5.

[0035] In this embodiment, the sealing plate 3 is arranged around the hollow portion 10 and is a frame structure, including a sealing plate front section 301 and a sealing plate rear section 302. The sealing plate rear section 302 is formed with a connecting protrusion 3021 at one end close to the sealing plate front section 301. The sealing plate front section 301 is provided with a connecting portion 3011 adapted to the connecting protrusion 3021, and the connecting portion 3011 is abutted against the side wall of the connecting protrusion 3021 for forming a connection; the sealing plate front section 301 and the sealing plate rear section 302 are only used to distinguish the two parts of the sealing plate 3. The sealing plate front section 301 is the end close to the front of the vehicle body. The sealing plate 3 adopts a two-part structure design, which can provide The flatness of the overall structure of the sealing plate 3 is improved. Compared with the multi-section structure of the prior art, the sealing effect can be further improved. The sealing plate 3 is a frame structure, and its shape can be adapted to the shape of the gap between the battery pack 5 and the vehicle body frame. The sealing plate 3 is divided into a sealing plate front section 301 and a sealing plate rear section 302. A connecting protrusion 3021 is formed at one end of the sealing plate rear section 302 close to the sealing plate front section 301. The sealing plate front section 301 is provided with a connecting portion 3011, and the connecting portion 3011 abuts against the side wall of the connecting protrusion 3021 to form a connection. At the same time, laser welding is used at the joint between the connecting protrusion 3021 and the connecting portion 3011 to improve the sealing accuracy.

[0036] In this embodiment, a downwardly concave annular groove 305 is formed on the sealing plate 3, and the two sides of the annular groove 305 are respectively bent upward to form an inner flange 303 and an outer flange 304, and the lower surface of the annular groove 305 forms the sealing surface, the outer flange 304 is connected to the vehicle body frame, and the lower surface of the inner flange 303 is connected to the multiple bosses 501; up and down are relative to the up and down directions of the car, and the cross-section of the sealing plate 3 is a "J"-shaped structure. A downwardly concave annular groove 305 is formed on the sealing plate 3, and the lower surface of the annular groove 305 forms a sealing surface, which is conducive to making the sealing surface press against the sealing component 2 to improve the sealing effect.

[0037] In this embodiment, the vehicle body frame includes a left sill beam 4, a right sill beam 1, a front engine compartment 7 and a rear floor 6, the left sill beam 4 and the right sill beam 1 are arranged opposite to each other, the two ends of the front engine compartment 7 are respectively connected to the front ends of the left sill beam 4 and the right sill beam 1, the two ends of the rear floor 6 are respectively connected to the rear ends of the left sill beam 4 and the right sill beam 1, the left sill beam 4, the right sill beam 1, the front engine compartment 7 and the rear floor 6 together surround the hollow portion 10; in this structure, front and back and left and right are relative to the front and back and left and right directions of the car, the left sill beam 4, the right sill beam 1, the front engine compartment 7 and the rear floor 6 together surround an exit-shaped structure or a rectangular structure to form a hollow portion 10, and the upper shell 502 of the battery pack 5 can be exposed from the hollow portion 10;

[0038] The battery pack 5 is installed at least on the left sill beam 4 and the right sill beam 1 ; the battery pack 5 is connected to the left sill beam 4 and the right sill beam 1 by bolts.

[0039] In this embodiment, the vehicle body frame also includes a front seat mounting cross beam 9 and a rear seat mounting cross beam 8, the front seat mounting cross beam 9 spans the hollow portion 10 in the left-right direction, and the rear seat mounting cross beam 8 is connected between the front seat mounting cross beam 9 and the front engine compartment 7 in the front-to-back direction; the front seat mounting cross beam 9 is connected to the left door sill beam 4 and the right door sill beam 1, and the rear seat mounting cross beam 8 is connected to the front seat mounting cross beam 9 and the front engine compartment 7, which can ensure the structural strength of the vehicle body frame.

[0040] In this embodiment, the front section 301 of the sealing plate and the rear section 302 of the sealing plate are U-shaped structures, the upper surface of the front section 301 of the sealing member is connected to the lower surfaces of the front mounting beam 9 and the rear mounting beam 8 of the seat, and the rear section 302 of the sealing member is fixedly connected to the rear floor 6; the front section 301 of the sealing plate is welded and fixed to the front mounting beam 9 and the rear mounting beam 8 of the seat to form a front floor frame assembly, and the rear section 302 of the sealing plate is welded to the rear floor 6, so that during production, the front section 301 of the sealing plate and the rear section 302 of the sealing plate belong to the front floor frame assembly and the rear floor 6 welding assembly respectively. Compared with the integral structure of the sealing plate 3 in the prior art, it avoids separate supply and can avoid the risk of deformation and failure caused by insufficient strength of the sealing plate 3 supplied separately during transportation.

[0041] In this embodiment, the edge of the upper shell 502 of the battery pack 5 is recessed downward to form a supporting portion 503, and the sealing surface is located above the supporting portion 503. The seal 2 is arranged on the supporting portion 503 and is adapted to the shape of the annular groove 305. The sealing surface is pressed downward against the upper surface of the seal 2 to form a sealing structure. The overall shape of the battery pack 5 is a rectangular structure. The edge of the upper shell 502 of the battery pack 5 is recessed downward to form a supporting portion 503. The seal 2 is placed on the supporting portion 503 for easy assembly and installation. At the same time, the sealing surface is pressed downward against the upper surface of the seal 2 to further improve the sealing effect.

[0042] In this embodiment, the outer flange 304 is respectively connected to the left sill beam 4, the right sill beam 1, the front engine compartment 7 and the rear floor 6, and the lower surface of the inner flange 303 is connected to the multiple bosses 501 through a colloid; the lower surface of the inner flange 303 is connected to the multiple bosses 501 through a colloid, and of course it can also be connected by other methods, such as welding, etc. At the same time, the inner flange 303 is connected to the left sill beam 4, the right sill beam 1, the front engine compartment 7 and the rear floor 6, thereby forming a closed gap between the vehicle body frame and the battery pack 5.

[0043] The utility model discloses a car, comprising the above-mentioned car body assembly.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A vehicle body component, characterized in that: include: A body frame, wherein a hollow portion is formed on the body frame; A battery pack, the battery pack being mounted on the vehicle body frame and the upper shell of the battery pack filling the hollow portion to form at least a portion of the floor, and a plurality of bosses being continuously provided on the edge of the upper shell surface of the battery pack; The sealing assembly includes a sealing plate, which is arranged between the battery pack and the vehicle body frame and is used to close the gap between the upper shell of the battery pack and the vehicle body frame. The outer side of the sealing plate is connected to the vehicle body frame, and the inner lower surface of the sealing plate presses downward against multiple bosses to form a closed structure.

2. The vehicle body assembly according to claim 1, characterized in that: A seal is also included, wherein the lower surface of the sealing plate is at least partially flat to form a sealing surface that cooperates with the seal, and the seal is disposed between the battery pack and the sealing surface to seal the battery pack and the sealing plate.

3. The vehicle body assembly according to claim 1, characterized in that: The sealing plate is arranged around the hollow part and is a frame structure, including a front section of the sealing plate and a rear section of the sealing plate. A connecting protrusion is formed at one end of the rear section of the sealing plate close to the front section of the sealing plate, and the front section of the sealing plate is provided with a connecting part adapted to the connecting protrusion, and the connecting part abuts against the side wall of the connecting protrusion to form a connection.

4. The vehicle body assembly according to claim 2, characterized in that: A downwardly concave annular groove is formed on the sealing plate, and both sides of the annular groove are bent upward to form an inner flange and an outer flange, respectively. The lower surface of the annular groove forms the sealing surface, the outer flange is connected to the vehicle body frame, and the lower surface of the inner flange is connected to the multiple bosses.

5. The vehicle body assembly according to claim 4, characterized in that: The vehicle body frame includes a left sill beam, a right sill beam, a front cabin and a rear floor, the left sill beam and the right sill beam are arranged opposite to each other, two ends of the front cabin are respectively connected to the front ends of the left sill beam and the right sill beam, two ends of the rear floor are respectively connected to the rear ends of the left sill beam and the right sill beam, and the left sill beam, the right sill beam, the front cabin and the rear floor together surround the hollow portion; The battery pack is installed at least on the left sill beam and the right sill beam.

6. The vehicle body assembly according to claim 5, characterized in that: The vehicle body frame further comprises a front seat mounting crossbeam and a rear seat mounting crossbeam, wherein the front seat mounting crossbeam spans the hollow portion in the left-right direction, and the rear seat mounting crossbeam is connected between the front seat mounting crossbeam and the front cabin in the front-back direction.

7. The vehicle body assembly according to claim 6, characterized in that: The front section and the rear section of the sealing plate are U-shaped structures. The upper surface of the front section of the sealing member is connected to the lower surfaces of the front and rear mounting beams of the seat, and the rear section of the sealing member is fixedly connected to the rear floor.

8. The vehicle body assembly according to claim 4, characterized in that: The edge of the upper shell of the battery pack is recessed downward to form a supporting portion, the sealing surface is located above the supporting portion, the sealing member is arranged on the supporting portion and is adapted to the shape of the annular groove, and the sealing surface presses downward against the upper surface of the sealing member to form a sealing structure.

9. The vehicle body assembly according to claim 5, characterized in that: The outer flanges are respectively connected to the left sill beam, the right sill beam, the front cabin and the rear floor, and the lower surface of the inner flange is connected to the plurality of bosses through a colloid.

10. An automobile, characterized in that: The vehicle body component comprises the vehicle body component according to any one of claims 1 to 9.

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