Electric vehicle battery system that can be increased or decreased by using the lower body as the battery box

Abstract

The invention relates to an electric vehicle battery system that can be increased or decreased by using the lower vehicle body as a battery box, comprising a single battery pack (100), a main control box (200), a connecting wire harness (300), and an underfloor (400) , the upper layer of the floor, the lower body (600), and the sealing plate (700), which are characterized in that: the single battery pack (100) is connected to the lower body (600) by bolts (108), and the main control box (200) is connected by bolts (108) is connected with the lower car body (600), the lower floor (400) is welded together with the lower car body (600), relatively fixed, and the single battery pack connector (301) is installed on the lower floor (400) by threaded connection. ), the main control box connector (303) is also installed on the lower floor (400) through threaded connection, and the present invention uses the lower vehicle body as the box body of the battery box, so that the theoretical design of the stiffness and strength of the whole vehicle is more reasonable; Inventing multiple single battery packs to form a battery system reduces the requirements for the structure and installation structure of the single battery packs.

Description

technical field

[0001] The invention relates to the structure of an electric vehicle battery system, in particular to an electric vehicle battery system which utilizes the structure of the lower vehicle body as a battery box and can increase or decrease independent battery packs as required. Background technique

[0002] The battery box is an important part of the electric vehicle. The design of the battery box structure and the skeleton structure around the battery box are directly related to the rigidity, strength and other performance of the vehicle, and also have a great relationship with the safe working condition of the battery pack; the traditional The battery box and its surrounding structures are basically an independent battery box installed on the underframe of the vehicle body. The battery packs connected in series and parallel are accommodated in the box. The weight is relatively large, which has higher requirements on the structure and performance of the box; s...

Examples

Embodiment Construction

[0047] The following description is merely exemplary in nature and not intended to limit the disclosure, application or use. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0048] Such as figure 1 As shown, the electric vehicle battery system that can be increased or decreased using the lower vehicle body as the battery box according to the present invention includes a single battery pack 100, a main control box 200, a connecting wire harness 300, a lower floor 400, an upper floor 500, a lower floor Car body 600, sealing plate 700 seven big parts. The single battery pack 100 is connected to the lower body 600 through bolts 108, the main control box 200 is connected to the lower body 600 through bolts 108, the underfloor 400 and the lower body 600 are welded together, relatively fixed, and the single battery pack connector (male plug) 301 is installed on the lower floor 400 through thr...

technical field

[0001] The invention relates to the structure of an electric vehicle battery system, in particular to an electric vehicle battery system which utilizes the structure of the lower vehicle body as a battery box and can increase or decrease independent battery packs as required. Background technique

[0002] The battery box is an important part of the electric vehicle. The design of the battery box structure and the skeleton structure around the battery box are directly related to the rigidity, strength and other performance of the vehicle, and also have a great relationship with the safe working condition of the battery pack; the traditional The battery box and its surrounding structures are basically an independent battery box installed on the underframe of the vehicle body. The battery packs connected in series and parallel are accommodated in the box. The weight is relatively large, which has higher requirements on the structure and performance of the box; s...

Examples

Embodiment Construction

[0047] The following description is merely exemplary in nature and not intended to limit the disclosure, application or use. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0048] Such as figure 1 As shown, the electric vehicle battery system that can be increased or decreased using the lower vehicle body as the battery box according to the present invention includes a single battery pack 100, a main control box 200, a connecting wire harness 300, a lower floor 400, an upper floor 500, a lower floor Car body 600, sealing plate 700 seven big parts. The single battery pack 100 is connected to the lower body 600 through bolts 108, the main control box 200 is connected to the lower body 600 through bolts 108, the underfloor 400 and the lower body 600 are welded together, relatively fixed, and the single battery pack connector (male plug) 301 is installed on the lower floor 400 through thr...

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