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Cell component of electric motorcar

A technology for battery components and electric vehicles, applied in electric vehicles, battery pack components, vehicle components, etc., can solve the problems of unsealing, large battery components, and affecting the performance of battery components, so as to reduce the space of the body and reduce the The effect of a small front volume

Active Publication Date: 2009-04-29
BYD CO LTD
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AI Technical Summary

Problems solved by technology

[0004] The disadvantages of the above-mentioned prior art are: the cross-sectional shape of the battery case is rectangular, and since the electric wires and wire harnesses of the battery assembly are placed on the upper and lower sides of the battery pack fixing device in the battery case body, in order to provide the electrical installation board, wire harness Reserve a place for placement, and there must be a gap between the battery box and the battery pack fixing device. Since the cross-sectional shape of the gap is also a rectangle, the volume of the gap is relatively large, making the battery pack bulky
[0005] The disadvantages of the above-mentioned prior art are: there is only one battery box body, which cannot be sealed, and water is easy to enter the battery assembly, which affects the performance of the battery assembly
[0006] The disadvantages of the above-mentioned prior art are that the battery assembly has no load-bearing structure, and its load-bearing performance is not good.

Method used

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  • Cell component of electric motorcar
  • Cell component of electric motorcar
  • Cell component of electric motorcar

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Embodiment Construction

[0032] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings. Such as figure 1 , figure 2 As shown, the battery assembly of an electric vehicle includes a box body 1 , a sub-battery pack 3 , an electrical installation plate 4 , a beam 5 , and a load-bearing screw 6 .

[0033] Such as figure 1 As shown, the structure of the box body 1 is improved on the basis of the existing box body (rectangular in cross section), and it is shown that the two corners of the rear part (near the rear suspension mounting fulcrum) are recessed forward, and the box body 1 There are at least two holes in the rear side wall. The charging cable and management harness can pass through the hole. The electrical installation plate 4 can be welded at the bottom plate of the gap between the inner wall of the rear part of the box body 1 and the sub-battery pack 3. There are screw holes on the electrical installation...

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Abstract

The invention discloses a battery component of electric vehicle, which comprises the following parts: box, subbattery group in the box, wherein two coroners of box back notches forwards. The invention reduces the back bulk of battery component, which provides sufficient space for assembling fulcrum on the back suspension of electric vehicle.

Description

technical field [0001] The invention relates to an electric vehicle, in particular to a battery assembly of the electric vehicle. Background technique [0002] With the increasing oil consumption, the gradual reduction of proven oil reserves, and the rapid rise of refined oil prices, the signs of energy crisis are slowly appearing. The world's major automobile manufacturers are competing to conduct research on new energy technologies for automobiles. , the usual practice is to make structural and technical improvements on the basis of existing relatively mature fuel vehicles. Among many new energy alternative technologies, electric vehicles undoubtedly develop very rapidly and have practical significance, and their development prospects are broad. Electric vehicles generally need to use battery packs containing power batteries to provide driving energy. [0003] The Chinese invention patent electric vehicle battery box (publication number is CN 1734808A) discloses an elect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/10B60K1/04B60L11/18H01M50/244H01M50/249
CPCY02E60/12Y02T10/7005Y02T10/70
Inventor 王向征夏承钢宋明尚小良
Owner BYD CO LTD
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