CN209843796U

CN209843796U - Battery pack and vehicle

Info

Publication number: CN209843796U
Application number: CN201920780054.2U
Authority: CN
Inventors: 修书董; 李舒业; 张海建
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2019-12-24
Anticipated expiration: 2029-05-27

Abstract

The utility model relates to a battery field provides a battery package and vehicle, wherein, the battery package includes a plurality of battery module and heat insulating part along the horizontal direction range, the heat insulating part is including being located adjacently fire shield and setting between the battery module are in the protection casing at fire shield top, the protection casing for the top of battery module is upwards protruding. Battery package, be provided with the heat insulating part between the adjacent battery module, the heat insulating part includes PLASTIC LAMINATED and protection casing, the protection casing can prevent that single battery module from catching fire the back flame and stretching to adjacent battery module, alleviate or avoid the thermal diffusion, improve the holistic security performance of battery package.

Description

Battery pack and vehicle

Technical Field

The utility model relates to a technical field of battery, in particular to battery package and vehicle.

Background

The power battery of the electric automobile has the characteristics of high voltage and high capacity, and can cause life danger to passengers in a passenger compartment once a fire occurs, so that the power battery is very important for fire prevention of a power battery pack.

The battery pack is internally provided with a plurality of tightly attached battery modules, if one of the battery modules catches fire accidentally, the fire will spread to other battery modules, and the whole battery pack catches fire or even explodes.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a battery pack to solve the problem that thermal runaway of a single battery module in the battery pack is easy to diffuse.

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

a battery pack, wherein, the battery pack includes a plurality of battery modules and thermal insulation members arranged along a horizontal direction, the thermal insulation members include a fireproof plate positioned between the adjacent battery modules and a protective cover arranged on the top of the fireproof plate, and the protective cover protrudes upwards relative to the top of the battery modules.

Further, the protection casing is U type groove, the bottom in U type groove joint in the top of PLASTIC LAMINATED.

Furthermore, the top of the U-shaped groove is connected with flanges extending towards two sides.

Further, the protective cover is a ceramic protective cover.

Further, the shield may be removably attached to the flame retardant panel by bolts.

Further, the protective hood is adjustable in height relative to the flame retardant panel.

Further, the battery pack includes a housing that houses the thermal shield and the battery module, and the thermal shield includes a base that is attached to the bottom of the flame retardant panel and to the housing.

Furthermore, two ends of the base horizontally protrude relative to the fireproof plate, and connecting holes are formed in two ends of the base.

Further, the fire retardant panel is a hollow structure, and is made of a ceramic composite material.

Compared with the prior art, battery package have following advantage:

battery package, be provided with the heat insulating part between the adjacent battery module, the heat insulating part includes PLASTIC LAMINATED and protection casing, the protection casing can prevent that single battery module from catching fire the back flame and stretching to adjacent battery module, alleviate or avoid the thermal diffusion, improve the holistic security performance of battery package.

Another object of the present invention is to provide a vehicle, so as to solve the problem of easy diffusion of thermal runaway of a single battery module in a battery pack.

a vehicle, wherein, the vehicle is provided with the battery package of above scheme.

The vehicle and the battery pack have the same advantages compared with the prior art, and the detailed description is omitted.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

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 view of a part of a structure of a battery pack according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a heat insulation member according to an embodiment of the present invention.

Description of reference numerals:

1-heat insulation piece, 2-battery module, 11-fireproof plate, 12-protective cover, 13-flanging, 14-bolt and 15-base.

Detailed Description

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

The utility model provides a battery pack, wherein, battery pack includes a plurality of battery module 2 and heat insulating part 1 of arranging along the horizontal direction, heat insulating part 1 is including being located adjacently fire shield 11 and setting between the battery module 2 are in the protection casing 12 at fire shield 11 top, protection casing 12 for the top of battery module 2 is upwards protruding.

In the battery pack of this scheme, battery module 2 arranges along the horizontal direction, and of course, in the use, the state of placing of battery pack can change for battery module 2 arranges along other directions, for example, vertical direction, or the direction of slope. Set up heat insulating part 1 between adjacent battery module 2, heat insulating part 1 includes PLASTIC LAMINATED 11 and protection casing 12, PLASTIC LAMINATED 11 is directly located between adjacent battery module 2, can realize thermal-insulated between adjacent battery module 2, when individual battery module 2 appears unexpected excessively to generate heat even catches fire, PLASTIC LAMINATED 11 can prevent that the intensity of a fire from stretching, it is special, the top of PLASTIC LAMINATED 11 is provided with protection casing 12, fire prevention cover 12 is salient for battery module 2, do not be located the interval between adjacent battery module 2 promptly, basically can not influence the heat transfer between the battery module 2, however, when individual battery module 2 catches fire, protection casing 12 can form the protective screen, prevent that the flame from stretching to adjacent battery module 2, prevent that the intensity of a fire from stretching to other battery module 2, protect other battery module 2.

Optionally, the protective cover 12 is a U-shaped groove, and the bottom of the U-shaped groove is connected to the top of the fireproof plate 11. Referring to fig. 2, the hood 12 is a U-shaped groove with an upward opening, the bottom of the U-shaped groove is attached to the top of the fire-proof plate 11, the fire-proof plate 11 is a structure with a larger thickness, and the top of the fire-proof plate forms a strip-shaped plane with a certain width to support the hood 12. The U-shaped protective cover 12 is convenient to attach to the fire retardant panel and has a relatively thin and light structure, which serves as a protective barrier.

In addition, the top of the U-shaped groove is connected with a flange 13 extending towards two sides. Referring to fig. 2, the tops of the two side walls of the U-shaped groove are respectively connected with the flanges 13 extending towards two sides, and the two flanges 13 extend towards the battery modules 2 at two sides respectively, so that the flame can be further prevented from crossing the protective cover 1 upwards, and the fire is prevented from spreading.

Specifically, the protective cover 12 is a ceramic protective cover. The fireproof temperature of the ceramic protective cover is over 1000 ℃, the ceramic protective cover has good fireproof performance, and when the battery module 2 catches fire accidentally, the protective cover 12 can better bear high-temperature flame and is not easy to be damaged by the flame and lose efficacy.

In addition, the protective cover 12 is detachably attached to the fire prevention plate 11 by bolts 14. The protection cover 12 may be provided with a through hole at the bottom of the U-shaped groove to receive the bolt 14 therethrough, and a screw hole may be provided on the top surface of the fire shield 11 to be screw-coupled with the bolt 14, so that the protection cover 12 is coupled to the fire shield 11 by the bolt 14, and the protection cover 12 can be detached from the fire shield 11 by detaching the bolt 14. The protective cover 12 is not an integral structure with the fireproof plate 11, and thus, assembly and disassembly maintenance of the battery pack are facilitated.

Further, the shield 12 is adjustable in height relative to the flame retardant panel 11. The height of the protection cover 12 is adjusted to a suitable range according to the height of the battery module 2 and the simulated flame height to sufficiently block the flame from crossing the protection cover 12. Two stop parts can be arranged on the bolt 14 and are respectively positioned at two sides of the protective cover 12, and the height of the protective cover 12 can be driven to change by adjusting the height of the bolt 14.

In addition, the battery pack includes a case that accommodates the heat insulator 1 and the battery module 2, and the heat insulator 1 includes a base 15 that is attached to the bottom of the fireproof plate 11 and the case. The heat insulating member 1 may be supported by a base 15, and the base 15 is attached to the bottom of the fireproof plate 11 and connected to the housing of the battery pack to fix the fireproof plate 11 to the housing, thereby preventing the heat insulating member 1 from being displaced due to vibration.

Further, both ends of the base 15 horizontally protrude with respect to the fire prevention plate 11, and both ends of the base 15 are provided with connection holes. Referring to fig. 2, both ends of the base 15 protrude with respect to the fire prevention plate 11, and a coupling hole is provided on the protruding portion thereof, so that the base 15 can be coupled to the housing by a pin, a screw, or the like, thereby fixing the base 15 and the fire prevention plate 11.

Alternatively, the flame retardant panel 11 is a hollow structure, and the flame retardant panel 11 is made of a ceramic composite material. The cavity is formed inside the fireproof plate 11, namely, the air filling is carried out, the overall heat insulation capacity can be relatively improved, the battery module 2 which unexpectedly generates heat excessively is relieved, excessive heat is transferred to other adjacent battery modules 2, and the fireproof plate 11 can be made of a ceramic composite material, so that the heat resistance is improved.

Additionally, the utility model also provides a vehicle, wherein, the vehicle is provided with above this crowd the battery package. The vehicle can be an electric vehicle and a hybrid vehicle, the battery pack can provide power for the vehicle, of course, the vehicle can also be a fuel vehicle, and the battery pack can provide power for electronic equipment of the vehicle.

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 pack, characterized in that the battery pack comprises a plurality of battery modules (2) arranged in a horizontal direction and a heat insulating member (1), the heat insulating member (1) comprises a fireproof plate (11) located between the adjacent battery modules (2) and a protective cover (12) arranged on the top of the fireproof plate (11), and the protective cover (12) protrudes upward relative to the top of the battery modules (2).

2. The battery pack according to claim 1, wherein the protective cover (12) is a U-shaped groove, and a bottom of the U-shaped groove is joined to a top of the fireproof plate (11).

3. A battery pack according to claim 2, wherein the top of the U-shaped groove is connected to flanges (13) extending to both sides.

4. A battery pack, according to claim 1, characterized in that the protective cover (12) is a ceramic protective cover.

5. A battery pack, as in claim 1, characterized in that the protective cover (12) is removably attached to the fire retardant plate (11) by means of bolts (14).

6. Battery pack according to claim 5, characterized in that the protective hood (12) is adjustable in height relative to the fire protection plate (11).

7. The battery pack according to claim 1, wherein the battery pack includes a case that houses the heat insulator (1) and the battery module (2), and the heat insulator (1) includes a base (15) that is attached to the bottom of the fireproof plate (11) and the case.

8. The battery pack according to claim 7, wherein both ends of the base (15) horizontally protrude with respect to the fireproof plate (11), and both ends of the base (15) are provided with coupling holes.

9. The battery pack according to claim 1, wherein the flame retardant plate (11) is a hollow structure, and the flame retardant plate (11) is made of a ceramic composite material.

10. A vehicle, characterized in that the vehicle is provided with a battery pack according to any one of claims 1-9.