Vehicle

Abstract

The utility model discloses a vehicle. The vehicle comprises a vehicle body; the battery pack is connected to the bottom of the vehicle body; the sealing structure comprises a sealing piece used for sealing an assembling gap between the circumferential direction of the battery pack and the automobile body, the sealing piece is provided with an automobile body sealing face attached to the automobile body and a battery pack sealing face attached to the battery pack, and a deformation energy absorption part used for absorbing deformation is arranged at the position, corresponding to the circumferential gap of the battery pack, of the sealing piece; according to the vehicle structure provided by the utility model, the deformation energy absorption part for absorbing deformation is arranged on the sealing element corresponding to the circumferential gap, so that the deformation energy absorption part on the sealing element can play a role in buffering deformation when the whole vehicle is in the states of bending, torsion and the like; therefore, the influence of vehicle body deformation on the vehicle body sealing surface and the battery pack sealing surface can be effectively reduced, namely, the unevenness influence caused by creeping deformation of the vehicle body sealing surface and the battery pack sealing surface is reduced, so that the sealing performance of the vehicle body sealing surface and the battery pack sealing surface is improved, and the risk of sealing failure is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle. Background Art

[0002] With the development and progress of new energy vehicle models, the connection structure between the battery pack and the vehicle body has also changed greatly. In the related technology, the battery pack and the vehicle body or chassis are designed as an integrated whole (CTB / CTC in English), and the top cover of the battery pack replaces the vehicle body floor to achieve lightweight vehicle body structure; since the seal between the vehicle body and the battery pack has a great influence on the seal of the whole vehicle, the sealing structure between the vehicle body and the battery pack is extremely critical. In the prior art, the battery pack and the vehicle body frame are generally connected and sealed by welding and the weld is filled with sealant. When the whole vehicle is in a state of bending and twisting, the seal is easily deformed, resulting in seal failure and water and dust ingress; at the same time, it is also not conducive to the rapid disassembly and assembly of the battery pack. Therefore, it is urgent to improve the design of the connection sealing structure between the existing battery pack and the vehicle body to solve the technical problems in the prior art that the seal between the battery pack and the vehicle body is easy to deform and fail, and the disassembly and assembly are inconvenient. Utility Model Content

[0003] In view of this, an object of the present invention is to provide a vehicle, aiming to solve at least one of the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vehicle, comprising: a vehicle body; a battery pack connected to the bottom of the vehicle body; a sealing structure, comprising a sealing member for closing the assembly gap between the battery pack circumferentially and the vehicle body, the sealing member having a vehicle body sealing surface fitted to the vehicle body and a battery pack sealing surface fitted to the battery pack, and a deformation energy absorbing portion for absorbing deformation is provided on the sealing member at a position corresponding to the circumferential gap of the battery pack.

[0005] Furthermore, the deformation energy absorbing portion is a raised portion integrally bent and formed on the sealing component.

[0006] Furthermore, the sealing member is fixedly connected to the top of the battery pack, and the battery pack sealing surface is formed on the lower surface of the sealing member.

[0007] Furthermore, a sealing reinforcement layer is provided between the sealing surface of the battery pack and the top surface of the battery pack, and extrusion is formed between the sealing member and the sealing reinforcement layer.

[0008] Furthermore, the sealing reinforcement layer is a sealing gasket and / or a sealant.

[0009] Furthermore, the sealing member is fixedly connected to the battery pack via a fastener.

[0010] Furthermore, a reinforcing plate is provided in the sealing surface area of ​​the seal corresponding to the battery pack, and the fastener is connected to the battery pack after penetrating the reinforcing plate, the seal and the sealing reinforcement layer.

[0011] Furthermore, the reinforcing plate is an integrated annular plate adapted to the battery pack frame.

[0012] Furthermore, the sealing member is provided with a flange portion which is attached to and fixed to the vehicle body, and the outer wall surface of the flange portion forms a sealing surface of the vehicle body.

[0013] Furthermore, the flange portion is folded upward.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the vehicle structure provided by the utility model, since a deformation energy absorbing portion for absorbing deformation is provided at the corresponding circumferential gap on the seal, when the whole vehicle is in a state of bending and twisting, the deformation energy absorbing portion on the seal can play a role of deformation buffer, which can effectively reduce the influence of vehicle body deformation on the sealing surface of the vehicle body and the sealing surface of the battery pack, that is, reduce the unevenness caused by the creeping deformation of the sealing surface of the vehicle body and the sealing surface of the battery pack, thereby helping to improve the sealing of the sealing surface of the vehicle body and the sealing surface of the battery pack and reduce the risk of sealing failure; at the same time, by providing a separate seal to complete the sealing of the assembly gap between the battery pack circumference and the vehicle body, there is no need to consider the sealing of the connection between the battery pack and the bottom of the vehicle body too much, and the battery pack can be connected to the vehicle body by bolts, which is conducive to simplifying the installation of the battery pack.

[0016] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model

[0018] Figure 2 for Figure 1 A partial enlarged view of the center

[0019] Figure 3 This is a schematic diagram of the explosion structure of the utility model

[0020] Figure numerals: 1-body; 2-battery pack; 3-seal; 3a-body sealing surface; 3b-battery pack sealing surface; 301-deformation energy absorption part; 302-flanged part; 4-seal reinforcement layer; 5-fastener; 6-reinforcement plate. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other without conflict.

[0022] See also Figure 1-3 , this embodiment discloses a vehicle, comprising: a vehicle body 1; a battery pack 2, connected to the bottom of the vehicle body 1, specifically, the frame of the battery pack 2 here extends along both sides of the vehicle body in the lateral direction to form a connecting plate 201, and the connecting plate 201 is correspondingly hung and fixed on the left / right door sill beam of the vehicle body 1 by bolts. In the CTB or CTC structure, the top surface of the battery pack 2 is used as part of the vehicle body floor, and the front floor of the vehicle body can be omitted. This part can refer to the existing connection structure design of the battery pack 2 and the vehicle body, and will not be repeated here;

[0023] The sealing structure includes a sealing structure for the gap between the battery pack 2 and the vehicle body in the circumferential direction (see Figure 1 The sealing member 3 is formed at the H position in the middle, and the sealing member 3 has a body sealing surface 3a attached to the body 1 and a battery pack sealing surface 3b attached to the battery pack 2. The body sealing surface 3a and the battery pack sealing surface 3b can respectively complete the sealing between the battery pack 2 and the body 1. The sealing member 3 is preferably a sheet metal part, and the sealing surface is usually configured to conform to the part to be attached. Of course, the attached part can be fixed by welding, screwing, etc.; and the circumferential gap of the battery pack 2 is corresponding to the sealing member 3 (see Figure 1 A deformation energy absorbing part 301 for absorbing deformation is provided at the position (at the H in the middle), and the deformation energy absorbing part 301 here can have a variety of structures, such as a collapse groove, or a connector with elastic buffer, etc., and of course the elastic buffer connector must ensure sealing; it should be noted that the deformation energy absorbing part 301 is arranged at the assembly gap, which will not affect the sealing stability at the vehicle body sealing surface 3a and the battery pack sealing surface 3b; the battery pack 2 is provided with a gap in the circumferential direction to facilitate assembly, and it can be understood that the gaps around the battery pack 2 need to be sealed accordingly;

[0024] In the above structural design, since a deformation energy absorbing portion 301 for absorbing deformation is provided at the corresponding circumferential gap on the seal 3, when the whole vehicle is in a state of bending and twisting, the deformation energy absorbing portion 301 on the seal 3 can play a role of deformation buffer, which can effectively reduce the influence of the deformation of the vehicle body 1 on the vehicle body sealing surface 3a and the battery pack sealing surface 3b, that is, reduce the unevenness caused by the creeping deformation of the vehicle body sealing surface 3a and the battery pack sealing surface 3b, thereby helping to improve the sealing of the vehicle body sealing surface 3a and the battery pack sealing surface 3b and reduce the risk of sealing failure; at the same time, by providing a separate seal 3 to complete the sealing of the assembly gap between the battery pack 2 and the vehicle body 1 in the circumferential direction, there is no need to consider the sealing of the connection between the battery pack and the bottom of the vehicle body too much, and the battery pack can be connected to the vehicle body with bolts, which is conducive to simplifying the installation of the battery pack.

[0025] In the present embodiment, the deformation energy absorption portion 301 is a raised portion integrally bent and formed on the seal 3. Specifically, the raised portion here may be an arc-shaped or curved raised portion, etc., may protrude upward or downward, may be one or more, and specifically, in order to ensure its own structural strength, it is preferably one here; the seal 3 usually needs to have a certain strength, so the seal 3 preferably adopts a sheet metal part, and the raised portion integrally bent and formed on the seal 3 has a simple structure, and has a good deformation energy absorption effect while ensuring durability.

[0026] In this embodiment, the seal 3 is fixedly connected to the top of the battery pack 2, and the top refers to the vertical top of the entire vehicle. The battery pack sealing surface 3b is formed on the lower surface of the seal 3, and the battery pack sealing surface 3b is attached to the top surface of the battery pack 2. Specifically, it is attached to the top of the frame of the battery pack 2. Bolts or screws are preferably used to complete the fixed connection between the seal 3 and the battery pack 2. By fixing the seal 3 to the top of the battery pack 2, assembly is facilitated and assembly efficiency is improved.

[0027] In the present embodiment, a sealing reinforcement layer 4 is provided between the battery pack sealing surface 3b and the top surface of the battery pack 2, and extrusion is formed between the seal 3 and the sealing reinforcement layer 4. The seal 3 squeezes the sealing reinforcement layer 4 to further ensure the sealing effect of the sealing portion. In practice, the sealing requirements at the battery pack sealing surface 3b are higher and are more susceptible to damage, so a sealing reinforcement layer 4 is designed here to improve the sealing effect at this location and ensure the sealing reliability.

[0028] In this embodiment, the sealing reinforcement layer 4 is a sealing gasket and / or a sealant, which can achieve a good sealing effect after being squeezed, thereby helping to reduce the requirement for the flatness of the sealing surface 3b of the battery pack.

[0029] In this embodiment, the seal 3 is fixedly connected to the battery pack 2 via a fastener 5. Specifically, the fastener 5 here is a bolt and is connected to the frame of the battery pack 2. It can be understood that during use, a plurality of bolts are arranged at circumferential intervals along the battery pack 2; the sealing surface is connected to the battery pack frame by screws, the structure is firm and not easy to fail; it is also convenient for assembly.

[0030] In the present embodiment, the seal 3 is provided with a reinforcing plate 6 in the area corresponding to the sealing surface 3b of the battery pack, where the reinforcing plate 6 is preferably arranged on the top surface of the seal 3. Of course, in other embodiments, the reinforcing plate 6 can also be an integral structure with the seal 3, which is equivalent to thickening the area of ​​the seal 3 corresponding to the sealing surface 3b of the battery pack. The fastener 5 penetrates the reinforcing plate 6, the seal 3 and the sealing reinforcement layer 4 and is connected to the battery pack 2. The reinforcing plate 6 is provided to strengthen the area of ​​the seal 3 corresponding to the sealing surface 3b of the battery pack, which is beneficial to further improve the sealing of the connection between the seal 3 and the battery pack. It should be noted that in order to ensure the deformation energy absorption of the deformation energy absorption part 301, the thickness of the seal 3 at the corresponding assembly gap cannot be too thick, generally not exceeding 1.5 mm.

[0031] In this embodiment, the reinforcing plate 6 is an integrated annular plate adapted to the frame of the battery pack 2, preferably a metal plate, with a simple structure and easy assembly; the seal 3 around the battery pack 2 can be pressed tightly. Of course, in other embodiments, the reinforcing plate 6 can also be a plurality of plates spliced ​​together; it can be understood that the seal 3 around the battery pack 2 can also be an integrated structure or a plurality of plates spliced ​​together.

[0032] In this embodiment, the seal 3 is provided with a flange portion 302 which is attached to and fixed to the vehicle body 1, and the outer wall surface of the flange portion 302 forms a vehicle body sealing surface 3a; by providing the flange portion 302, it can be well attached to the vehicle body 1 and the sealing effect can be improved; of course, in actual use, sealant or a sealing gasket can be provided between the flange portion 302 and the fitting surface of the vehicle body 1 as needed; the flange portion 302 can be fixedly connected to the corresponding structure of the vehicle body 1 by spot welding or riveting, and the connection is convenient.

[0033] In this embodiment, the flange portion 302 is folded upward, which is beneficial to the connection with the vehicle body 1, such as providing a better assembly operation space, etc., so as to ensure the installation accuracy and improve the sealing effect.

[0034] 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, characterized in that: include: Car body (1); A battery pack (2) connected to the bottom of the vehicle body (1); A sealing structure comprises a sealing member (3) for sealing the assembly gap between a battery pack (2) and a vehicle body in the circumferential direction, the sealing member (3) comprising a vehicle body sealing surface (3a) affixed to the vehicle body (1) and a battery pack sealing surface (3b) affixed to the battery pack (2), and a deformation energy absorbing portion (301) for absorbing deformation is provided at a position on the sealing member (3) corresponding to the circumferential gap of the battery pack (2); the deformation energy absorbing portion (301) is a protrusion formed integrally on the sealing member (3) by bending.

2. The vehicle according to claim 1, characterized in that: The sealing member (3) is fixedly connected to the top of the battery pack (2), and the battery pack sealing surface (3b) is formed on the lower surface of the sealing member (3).

3. The vehicle according to claim 2, characterized in that: A sealing reinforcement layer (4) is provided between the battery pack sealing surface (3b) and the top surface of the battery pack (2), and extrusion is formed between the sealing element (3) and the sealing reinforcement layer (4).

4. The vehicle according to claim 3, characterized in that: The sealing reinforcement layer (4) is a sealing gasket and / or a sealing adhesive.

5. The vehicle according to claim 3, characterized in that: The sealing member (3) is fixedly connected to the battery pack (2) via a fastener (5).

6. The vehicle according to claim 5, characterized in that: The sealing member (3) is provided with a reinforcing plate (6) in the area corresponding to the battery pack sealing surface (3b), and the fastener (5) penetrates the reinforcing plate (6), the sealing member (3) and the sealing reinforcement layer (4) and is connected to the battery pack (2).

7. The vehicle according to claim 6, characterized in that: The reinforcing plate (6) is an integrated annular plate adapted to the frame of the battery pack (2).

8. The vehicle according to claim 1, characterized in that: The sealing member (3) is provided with a flange portion (302) which is attached to and fixed to the vehicle body (1), and the outer wall surface of the flange portion (302) forms a vehicle body sealing surface (3a).

9. The vehicle according to claim 8, characterized in that: The flange portion (302) is folded upward.

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