Battery box

Abstract

The invention provides a battery box, which comprises a box cover and a box body, wherein the box cover comprises a first shielding layer and a first insulating layer overlapped with the first shielding layer; the box body comprises a second shielding layer and a second insulating layer overlapped with the second shielding layer; the box cover and the box body jointly define a sealed holding space; the first insulating layer and the second insulating layer jointly form an inner wall of the holding space; the first shielding layer and the second shielding layer jointly form an outer wall of the holding space. According to the battery box provided by the invention, the box cover comprises the first shielding layer and the first insulating layer, the box body comprises the second shielding layer and the second insulating layer, and a steel plate material of an existing battery box is replaced, so that the weight of the battery box is reduced; the first shielding layer and the second shielding layer realize an electromagnetic shielding function, and prevent signals inside and outside the battery box from being interfered, and the first insulating layer and the second insulating layer ensures an insulating performance in the battery box, so that the use safety of the battery box is improved.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of batteries, in particular to a battery box. [0003] 【Background technique】 [0004] With the increasingly serious problems of environmental pollution and oil shortage, the replacement of traditional fuel vehicles by electric vehicles is the future development trend of the automobile industry. At present, the main problem of electric vehicles is the low driving range. In the case of limited power battery energy density, it is necessary to increase the driving range by reducing the weight of the vehicle, and the power battery and battery box are the main weight components of electric vehicles. The existing battery box is welded by steel plates, which has the problems of heavy weight, easy corrosion, poor sealing of welded parts and risk of battery short circuit. [0005] In view of this, it is necessary to provide a new type of battery box to overcome the above defects. [0006] 【Content of invent...

AI Technical Summary

Problems solved by technology

At present, the main problem of electric vehicles is the low driving range. In the case of limited power battery energy density, it is necessary to increase the driving range by reducing the weight of the vehicle, and the power battery and battery box are the main weight components of electric vehicles. The existing battery box is welded by steel plates, which has the problems of heavy weight, easy corrosion, poor sealing of the weld and risk of short circuit of the battery

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