CN214254582U

CN214254582U - Battery pack shell assembly, battery pack and vehicle

Info

Publication number: CN214254582U
Application number: CN202120252741.4U
Authority: CN
Inventors: 崔晓雨; 罗明明; 贾宇坤; 奉振华; 田旭光
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-09-21
Anticipated expiration: 2031-01-28

Abstract

The utility model discloses a battery package casing subassembly, battery package and vehicle, wherein battery package casing subassembly includes: an upper housing and a reinforced guard assembly. The reinforced protection component is arranged on the surface of the upper shell, and the reinforced protection component penetrates through the upper shell along the transverse direction and/or the longitudinal direction of the upper shell. The strength and the rigidity of the upper shell can be improved by the reinforcing protection component in the battery pack shell component, so that the deformation quantity of the upper shell of the battery pack can be limited when thermal runaway occurs, the risk that the upper shell of the vehicle hits the battery module in the driving process is reduced, and the reliability and the safety of the battery pack are improved.

Description

Battery pack shell assembly, battery pack and vehicle

Technical Field

The utility model relates to the technical field of vehicles, particularly, relate to a battery pack casing subassembly, battery package and vehicle.

Background

The intensity and the rigidity of casing are lower on traditional battery package, and when battery package took place thermal runaway, the last casing of battery package easily taken place to tear in the twinkling of an eye, cause the naked light, lead to causing the threat to driver and crew's safety in the car to casing on the battery package easily takes place to hit with the battery module at the vehicle in-process of traveling and hits, causes the security and the reliability of battery package lower, exists improvement space.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a battery pack housing assembly, which can effectively improve the reliability and safety of a battery pack.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a battery can housing assembly, comprising: an upper housing; the reinforced protection assembly is arranged on the surface of the upper shell and penetrates through the upper shell along the transverse direction and/or the longitudinal direction of the upper shell.

Further, the reinforcing protection component is fixed on the inner side surface and/or the outer side surface of the upper shell and is in fit conformal configuration with the inner side surface and/or the outer side surface of the upper shell.

Furthermore, the reinforcing protection component is provided with a fastening hole, and the fastening hole is connected with the upper shell in a sealing mode through a sealing bolt.

Further, strengthen the protection plate that protection component includes many parallel arrangement, many strengthen the equidistant setting of protection plate.

Furthermore, the two ends of each reinforcing protection plate extend to the fixed flanging of the upper shell, and the fastening holes in the two ends of each reinforcing protection plate are opposite to the connecting holes in the fixed flanging.

Further, the reinforced fender assembly includes: a first reinforcing guard plate disposed at a longitudinal front position of the upper case and adjacent to an electrical component inside the battery pack.

Further, the reinforced fender assembly further comprises: the guard plate is strengthened to the second, the guard plate setting is strengthened to the second is in the vertical middle part position of last casing just is close to single-layer battery module in the battery package.

Further, the reinforced fender assembly further comprises: the third strengthens the guard plate, the third is strengthened the guard plate and is set up the vertical rear portion position of last casing and be close to double-deck battery module in the battery package.

Compared with the prior art, the battery can shell subassembly have following advantage:

battery package casing subassembly, the enhancement protection subassembly in this battery package casing subassembly can improve the intensity and the rigidity of casing to make the battery package go up the deformation volume of casing when taking place the thermal runaway and can obtain the restriction, and reduced the vehicle and gone up the risk that the casing hit the battery module of beating in-process, thereby improved the reliability and the security of battery package.

Another object of the present invention is to provide a battery pack, including the above battery pack housing assembly, the reliability of the battery pack is higher, and the safety is higher.

Another object of the present invention is to provide a vehicle, including the above-mentioned battery pack, the reliability of this vehicle is higher, and the security is higher.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural diagram of a battery pack case assembly according to an embodiment of the present invention.

Description of reference numerals:

100-a battery pack shell assembly, 1-an upper shell, 11-a fixing flange, 12-a connecting hole, 2-a reinforcing protection assembly, 21-a first reinforcing protection plate, 22-a second reinforcing protection plate, 23-a third reinforcing protection plate and 24-a fastening hole.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

A battery can housing assembly 100 according to an embodiment of the present invention is described below with reference to fig. 1.

The battery pack housing assembly 100 according to an embodiment of the present invention may include: an upper shell 1 and a reinforcing guard assembly 2.

As shown in fig. 1, the battery pack housing assembly 100 according to the embodiment of the present invention is suitable for a battery pack of an electric vehicle. The battery pack is used as a power source of a pure electric vehicle, and the reliability and safety of the battery pack are crucial to the reliability and safety of the vehicle.

Because the intensity and the rigidity of casing are lower on traditional battery package, when the battery package takes place the thermal runaway, the last casing of battery package easily takes place to tear in the twinkling of an eye, causes the naked light, leads to causing the threat to driver and crew's safety in the car to casing easily takes place to hit with the battery module on the battery package in the vehicle driving process and hits, causes the security and the reliability of battery package lower.

For this reason, the embodiment of the present invention provides a battery pack housing assembly 100, in which a reinforced protection assembly 2 is disposed on the surface of a battery pack housing 1 to improve the strength and rigidity of the battery pack housing 1. The deformation amount of the battery pack upper shell 1 when the battery pack is out of control due to thermal runaway can be limited on the premise that the battery pack shell is low in cost and high in performance, the risk that the battery module is hit by the upper shell 1 in the running process of a vehicle can be reduced, the reliability and the safety of the battery pack are improved, and the reliability and the safety of the vehicle are improved.

Wherein, strengthen protective component 2 and set up on the surface of last casing 1 to improve the intensity and the rigidity of last casing 1, and will strengthen protective component 2 and set up on the surface of last casing 1, do not cause the influence to the original structure of battery package, simplified design process, reduced manufacturing cost.

Further, the reinforced protection component 2 penetrates through the upper shell 1 along the transverse direction and/or the longitudinal direction of the upper shell 1 so as to effectively reinforce the upper shell 1 within the maximum transverse direction and/or the longitudinal range of the upper shell 1, so that the reinforced protection component 2 has a better reinforcing effect on the upper shell 1.

According to the utility model discloses battery pack shell subassembly 100, the enhancement protective assembly in this battery pack shell subassembly 100 can improve the intensity and the rigidity of going up casing 1 to make the battery pack go up casing 1's deformation volume when taking place thermal runaway and can obtain the restriction, and reduced the risk that battery module was hit to last casing 1 among the vehicle driving process, thereby improved the reliability and the security of battery pack, and then improved the reliability and the security of vehicle.

According to some embodiments of the present invention, the reinforced protection member 2 is fixed to the inner side surface and/or the outer side surface of the upper case 1 (refer to fig. 1), and the reinforced protection member 2 is attached to the inner side surface and/or the outer side surface of the upper case 1. That is, the reinforcing shield member 2 may be form-fitted to the inner side surface of the upper case 1, may be form-fitted to the outer side surface of the upper case 1, or may be form-fitted to both the inner side surface and the outer side surface of the upper case 1. And, strengthen protective component 2's shape and should design according to the concrete shape of last casing 1 to guarantee to strengthen protective component 2 and can closely laminate with last casing 1, thereby realize better spacing and fixed action.

Wherein, the upper case 1 is made of a composite material to reduce the weight of the entire battery pack. The material of the reinforced protection component 2 can be steel or aluminum, the thickness of the reinforced protection component 2 is T, and T is more than or equal to 0.5mm and less than or equal to 10 mm. Namely, the thickness of the reinforced protection component 2 can be controlled between 0.5mm and 10mm, so that the reinforcing effect of the reinforced protection component 2 is better.

Further, as shown in fig. 1, the reinforcing shield member 2 is attached to the outer surface of the upper case 1. Therefore, when thermal runaway occurs in the battery pack, a large amount of gas is generated inside the battery pack, and the battery pack upper shell 1 expands under the action of the internal and external air pressure difference, the reinforcing protection component 2 can limit the deformation of the upper shell 1 on the outer side surface of the upper shell 1, so that the deformation of the upper shell 1 is not too large, the damage of the upper shell 1 is avoided, and time is provided for the opening of the explosion-proof valve and the circulation of air inside the battery pack.

Moreover, the reinforcing protection component 2 is attached and fixed on the outer side surface of the upper shell 1 along with the shape, so that the strength and rigidity of the upper shell 1 can be effectively improved, the local deformation of the upper shell 1 caused by the vibration of the vehicle in the driving process of the vehicle is reduced, the risk that the upper shell 1 hits the battery module in the driving process of the vehicle is reduced, and the reliability and the safety of the battery pack are improved.

Referring to fig. 1, the reinforcing shield assembly 2 has fastening holes 24 therein, and the fastening holes 24 are sealingly coupled to the upper case 1 by sealing bolts. I.e., the sealing bolt is adapted to pass through the fastening hole 24 to be engaged with the upper case 1, thereby fastening the reinforcement shield assembly 2 to the upper case 1. Wherein, sealing bolt not only can be in the same place strengthening the stable connection of protection component 2 and last casing 1, but also can effectual sealed hole site of seting up on the casing 1 to guarantee the whole leakproofness of battery package.

As shown in fig. 1, the reinforcement shield assembly 2 includes a plurality of reinforcement shield plates arranged in parallel, the plurality of reinforcement shield plates being arranged at equal intervals. Many parallel arrangement's enhancement guard plate can be under the prerequisite that does not increase the too much weight of casing 1, and the effectual intensity and the rigidity that improve casing 1, and parallel to each other is more convenient for arrange. And many strengthen the equidistant setting of guard plate, can be so that each stress of strengthening the guard plate more balanced, and then make to connect more stably.

Further, the both ends of every enhancement guard plate all extend to the fixed turn-ups 11 department of last casing 1 to all cover in the biggest horizontal and/or longitudinal extent of last casing 1 and strengthen the guard plate, thereby make the enhancement effect of strengthening the guard plate to last casing 1 better.

And, the fastening holes 24 on both ends of the reinforcing guard are disposed opposite to the coupling holes 12 on the fixing flange 11 (not shown in the drawings). That is, the reinforcing guard plate may be fastened to the upper case 1 of the battery pack and the lower case of the battery pack by one bolt. Therefore, the number of the fasteners can be saved, and the battery pack is convenient to mount.

According to some embodiments of the present invention, as shown in fig. 1, the reinforced protection assembly 2 comprises: a first reinforcing guard plate 21, the first reinforcing guard plate 21 being disposed at a longitudinally front position of the upper case 1 and adjacent to the electrical components inside the battery pack. The first reinforcing guard plate 21 can effectively protect electrical components in the Battery pack, for example, a BDU (Battery Disconnect Unit) to prevent the upper case 1 from colliding with the electrical components due to vibration during driving of the vehicle, thereby improving safety and reliability of the Battery pack.

Further, the reinforced fender assembly 2 further comprises: and the second reinforcing protection plate 22 is arranged at the longitudinal middle position of the upper shell 1 and close to the single-layer battery module in the battery pack. The second reinforcing guard plate 22 can effectively protect the single-layer battery module in the battery pack to prevent the single-layer battery module from being impacted by the vibration of the upper shell 1 during the driving process of the vehicle, so that the safety and the reliability of the battery pack are further improved.

Still further, the reinforced fender assembly 2 further comprises: and a third reinforcing protection plate 23, wherein the third reinforcing protection plate 23 is arranged at the longitudinal rear part of the upper shell 1 and is close to the double-layer battery module in the battery pack. The third reinforcing protection plate 23 can effectively protect the double-layer battery module in the battery pack so as to prevent the upper shell 1 from impacting the double-layer battery module due to vibration in the driving process of the vehicle, and therefore the safety and the reliability of the battery pack are further improved.

According to another aspect of the present invention, the battery pack includes the battery pack housing assembly 100 described in the above embodiments. The battery pack is higher in reliability and higher in safety.

According to another aspect embodiment of the present invention, a vehicle includes the battery pack described in the above embodiments. Other configurations of the vehicle, such as a braking system and a steering system, are known in the art and well known to those skilled in the art, and therefore, will not be described in detail herein.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery can housing assembly (100), comprising:

an upper case (1);

the reinforced protection component (2) is arranged on the surface of the upper shell (1), and the reinforced protection component (2) penetrates through the upper shell (1) along the transverse direction and/or the longitudinal direction of the upper shell (1).

2. The battery pack housing assembly (100) according to claim 1, wherein the reinforcement shield assembly (2) is fixed on the inner side surface and/or the outer side surface of the upper housing (1) and conforms to the conformal configuration with the inner side surface and/or the outer side surface of the upper housing (1).

3. The battery can body assembly (100) according to claim 2, wherein the reinforcing guard assembly (2) has fastening holes (24) thereon, and the fastening holes (24) are sealingly connected with the upper case (1) by sealing bolts.

4. The battery pack housing assembly (100) of claim 3, wherein the reinforcement shield assembly (2) includes a plurality of reinforcement shield plates arranged in parallel, the plurality of reinforcement shield plates being equally spaced.

5. The battery pack housing assembly (100) according to claim 4, wherein both ends of each of the reinforcement shields extend to fixing flanges (11) of the upper case (1), and the fastening holes (24) at both ends of the reinforcement shields are disposed opposite to the coupling holes (12) at the fixing flanges (11).

6. The battery pack housing assembly (100) of claim 5, wherein the reinforcement shield assembly (2) comprises: a first reinforcing shield plate (21), the first reinforcing shield plate (21) being disposed at a longitudinal front position of the upper case (1) and adjacent to an electrical component inside the battery pack.

7. The battery pack housing assembly (100) of claim 6, wherein the reinforcement shield assembly (2) further comprises: and the second reinforcing protection plate (22) is arranged at the longitudinal middle position of the upper shell (1) and is close to the single-layer battery module in the battery pack.

8. The battery can housing assembly (100) of claim 7, wherein the reinforced protective assembly (2) further comprises: and a third reinforcing protection plate (23), wherein the third reinforcing protection plate (23) is arranged at the longitudinal rear position of the upper shell (1) and close to the double-layer battery module in the battery pack.

9. A battery pack, characterized by comprising a battery pack housing assembly (100) according to any one of claims 1-8.

10. A vehicle characterized by comprising the battery pack according to claim 9.