CN218867278U

CN218867278U - Sealing structure of vehicle body integrated battery pack

Info

Publication number: CN218867278U
Application number: CN202222798895.0U
Authority: CN
Inventors: 杨云峰; 栾爱东; 胡思杨; 陈小平; 袁昌荣
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-04-14
Anticipated expiration: 2032-10-24

Abstract

The utility model belongs to the technical field of it is sealed, concretely relates to seal structure of automobile body integrated form battery package, including battery pack and automobile body subassembly, battery pack includes battery box and electric core, and electric core fixed mounting includes automobile body and floor in the battery box, automobile body and floor fixed connection, and the chucking has the automobile body sealing strip between automobile body and the floor, and the chucking has the battery package sealing strip between floor and the battery box. The purpose is as follows: the sealing device is used for solving the problems that the existing sealing technology pointed out in the background technology is high in cost, and the mutual influence can exist in the sealing between the battery and the vehicle body.

Description

Sealing structure of vehicle body integrated battery pack

Technical Field

The utility model belongs to the technical field of it is sealed, concretely relates to seal structure of automobile body integrated form battery package.

Background

Along with the popularization of electric automobiles, the requirement of a user on the endurance mileage of the electric automobiles is higher and higher, and then the requirement on the energy and the light weight of batteries is higher. Meanwhile, the power battery pack is used as a core component, and the safety of the power battery pack directly influences the safety performance of the whole vehicle. Therefore, higher requirements are also put on the design of the power battery pack in terms of strength, rigidity, heat dissipation, waterproof sealing performance, insulation performance, electromagnetic interference resistance and the like, particularly, the requirement on the waterproof sealing performance is that the internal voltage of the battery pack is high, the risk of short circuit caused by water inflow needs to be prevented, and the requirement on the sealing of the box body is IP67.

At present, a brand new battery integration mode that a power battery and a vehicle body are directly integrated appears, and an upper cover of the power battery is directly used as a floor, so that the integration level of a battery pack is improved. But at this moment, the problems of self sealing of the battery pack and vehicle body sealing need to be solved urgently, for example, the existing sealing technology is high in cost, and the sealing between the battery and the vehicle body can have the problem of mutual influence.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a sealing structure for a vehicle body integrated battery pack, which is used to solve the problems of high cost of the existing sealing technology pointed out in the background art and possible mutual influence of the sealing between the battery and the vehicle body.

The utility model discloses an above-mentioned technical problem is solved to following technical means:

the utility model provides a seal structure of automobile body integrated form battery package, includes battery pack and automobile body subassembly, battery pack includes battery box and electric core, electric core fixed mounting is in the battery box, automobile body subassembly includes automobile body and floor, automobile body and floor fixed connection, the chucking has the automobile body sealing strip between automobile body and the floor, the chucking has the battery package sealing strip between floor and the battery box.

Further, fixedly connected with floor support point on the floor, automobile body one end fixedly connected with battery carries the point. By the arrangement, the floor supporting point and the battery mounting point compress the vehicle body sealing strip together, and a mounting point does not need to be independently arranged for compressing, so that the process steps are reduced, and the production cost is reduced.

Furthermore, a transition support is fixedly connected to the floor. Set up like this, the transition support is used for the transition of automobile body bellying, slows down the transition slope to improve sealed effect.

Furthermore, one end of the vehicle body is fixedly connected with a rear vehicle body, and a lap joint structure is arranged between the floor and the rear vehicle body. The device is used for pressing the body sealing strip.

Further, the lap joint structure is provided as parallel ribs. Set up like this, the parallel muscle structure can realize that the automobile body sealing strip is pushed down all the time under the wheel base changes for the automobile body sealing strip can not use because of the wheel base change of battery package, thereby realizes the platformization of battery package.

Furthermore, one side of the battery box is provided with a bulge, and the bulge is tightly propped against the floor. By the arrangement, leakage channels are reduced, and the sealing effect is improved; meanwhile, the purpose of reducing the usage amount of the battery pack sealing strip and further reducing the production cost is achieved.

The utility model has the advantages of as follows:

1. through the mutual matching of the vehicle body sealing strip and the battery pack sealing strip, the vehicle body and the battery box are sealed separately, namely the vehicle body and the battery box are not influenced mutually;

2. through the mutual matching of the floor supporting point and the battery mounting point, a mounting point does not need to be independently arranged for pressing, so that the process steps are reduced, and the production cost is reduced;

3. through the mutual matching of the battery box, the bulge and the floor, the leakage channel is reduced, the sealing effect is improved, and meanwhile, the purpose of reducing the usage amount of the battery pack sealing strip and further reducing the production cost is achieved;

4. through the lap joint structure of the parallel ribs, the automobile body sealing strip can be pressed all the time when the wheel base is changed, so that the automobile body sealing strip cannot be used due to the change of the wheel base of the battery pack, and the platformization of the battery pack is realized.

Drawings

The invention can be further illustrated by means of non-limiting examples given in the accompanying drawings:

fig. 1 is a schematic diagram of an explosion structure of a sealing structure of a vehicle body integrated battery pack according to the present invention;

fig. 2 is a schematic longitudinal sectional structure view of a sealing structure of a vehicle body integrated battery pack according to the present invention;

fig. 3 is a schematic view of a cross-sectional structure of a parallel rib in a sealing structure of a vehicle body integrated battery pack according to the present invention;

fig. 4 is a schematic diagram of a transverse section structure of a sealing strip of a battery pack in a sealing structure of an integrated battery pack of a vehicle body.

The main component symbols are as follows:

the vehicle body comprises a vehicle body 1, a vehicle body sealing strip 2, a floor 3, a battery cell 4, a battery pack sealing strip 5, a battery box 6, a battery mounting point 7, a floor supporting point 8, a rear vehicle body 9, a transition support 10, parallel ribs 11 and protrusions 12.

Detailed Description

The following description is given for illustrative embodiments of the invention and to enable those skilled in the art to understand the advantages and effects of the invention from the disclosure of the present invention. It should be noted that the drawings provided in the following embodiments are for illustrative purposes only, and are only schematic drawings rather than actual drawings, which should not be construed as limiting the present invention, and in order to better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and their descriptions may be omitted.

In the description of the present invention, it should be understood that, if there are the terms "upper", "lower", "left", "right", "front", "back", etc. indicating the directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, therefore, the terms describing the positional relationships in the drawings are only used for exemplary illustration and should not be construed as limitations of the present invention, and those skilled in the art can understand the specific meanings of the terms according to the specific situations.

As shown in fig. 1, the utility model discloses a seal structure of automobile body integrated form battery package, including battery pack and automobile body subassembly, battery pack and automobile body subassembly fixed connection, in this embodiment, battery pack includes battery box 6 and electric core 4, and electric core 4 fixed mounting provides power for the automobile body in battery box 6.

As shown in fig. 1-2, in the present embodiment, the vehicle body assembly includes a vehicle body 1 and a floor 3, and the vehicle body 1 and the floor 3 are fixedly connected, in the present embodiment, the vehicle body 1 and the floor 3 are connected by bolts, and a vehicle body weather strip 2 is clamped between the vehicle body 1 and the floor 3, so as to achieve an effect of sealing the vehicle body 1 and prevent water vapor from entering. Floor 3 is last integrated into one piece has floor strong point 8, and there is battery mounting point 7 one end bottom of automobile body 1 through screw fixedly connected with, and in this embodiment, floor strong point 8 compresses tightly automobile body sealing strip 2 jointly with battery mounting point 7 for need not set up the installation point alone again and compress tightly automobile body sealing strip 2, reduced the technology step, reduced manufacturing cost.

As shown in fig. 1 and 3, in the present embodiment, a transition bracket 10 is welded to the floor 3, and the transition bracket 10 is used for the transition of the vehicle body convex portion to reduce the transition gradient, thereby improving the sealing effect. Automobile body 9 behind bolt fixedly connected with is passed through to the right-hand member of automobile body 1, in this embodiment, is provided with the overlap joint structure between floor 3 and the back automobile body 9, and the preferred parallel muscle 11 that is of overlap joint structure can realize that body sealing strip 2 is pushed down all the time under the wheel base change for body sealing strip 2 can not use because of the wheel base change of battery package, thereby realizes the platformization of battery package.

As shown in fig. 1 and 4, in the present embodiment, the floor panel 3 is integrated on the top of the battery box 6, and the battery pack sealing strip 5 is clamped between the floor panel 3 and the battery box 6. A bulge 12 is integrally formed on one side of the battery box 6, and the bulge 12 is tightly propped against the floor 3, so that a leakage channel is reduced, and the sealing effect is improved; meanwhile, the purpose of reducing the usage amount of the battery pack sealing strip 5 and further reducing the production cost is achieved.

The utility model discloses an installation method as follows:

during assembly, the battery core 4 is fixedly installed in the battery box 6, the battery pack sealing strip 5 is clamped between the battery box 6 and the floor 3, the floor 3 is fixedly connected to the vehicle body 1 through the bolt, and the vehicle body sealing strip 2 is clamped between the floor 3 and the vehicle body 1, so that the vehicle body 1 and the battery box 6 are separately sealed, namely, the battery box and the vehicle body are not influenced by each other.

And finally, fixedly connecting the vehicle body 1 with the rear vehicle body 9 through bolts, and finishing the installation of the vehicle body integrated battery pack sealing structure.

The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core concept. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.

Claims

1. A sealing structure of a vehicle body integrated battery pack comprises a battery assembly and a vehicle body assembly; the method is characterized in that: the battery pack comprises a battery box (6) and a battery cell (4), the battery cell (4) is fixedly installed in the battery box (6), the vehicle body pack comprises a vehicle body (1) and a floor (3), the vehicle body (1) is fixedly connected with the floor (3), a vehicle body sealing strip (2) is clamped between the vehicle body (1) and the floor (3), and a battery pack sealing strip (5) is clamped between the floor (3) and the battery box (6).

2. A sealing structure of a vehicle body-integrated battery pack according to claim 1, wherein: the floor is characterized in that a floor supporting point (8) is fixedly connected to the floor (3), and a battery mounting point (7) is fixedly connected to one end of the vehicle body (1).

3. The seal structure of the vehicle body-integrated battery pack according to claim 1, wherein: and a transition support (10) is fixedly connected to the floor (3).

4. A sealing structure of a vehicle body-integrated battery pack according to claim 3, wherein: one end of the vehicle body (1) is fixedly connected with a rear vehicle body (9), and a lap joint structure is arranged between the floor (3) and the rear vehicle body (9).

5. The seal structure of the vehicle body-integrated battery pack according to claim 4, wherein: the lap joint structure is provided with parallel ribs (11).

6. A sealing structure of a vehicle body-integrated battery pack according to claim 1, wherein: one side of the battery box (6) is provided with a bulge (12), and the bulge (12) is tightly propped against the floor (3).