Power battery pack and electric vehicle

A technology for power battery packs and electric vehicles, applied in the field of electric vehicles, can solve the problems of reducing the utilization rate of the inner space of the pack body 200″, the adverse effects of the quality of the power battery packs, and the stability of the power battery packs, etc., so as to improve the battery life. , the effect of increasing space utilization and expanding battery space

Active Publication Date: 2019-08-23
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] As the user's requirements for the battery life of electric vehicles gradually increase, and in the case of limited space at the bottom of the vehicle body, the power battery pack 10' provided by the above-mentioned prior art embodiment is adopted, and the end plate of the battery module 400' used in it is , side panels, and the internal connection and installation methods of the power battery pack 10', etc., all reduce the utilization rate of the internal space of the pack body 200''; 'The volume ratio is too low, and its energy density cannot meet the needs of users for the battery life of electric vehicles, which has gradually become an important fa

Method used

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  • Power battery pack and electric vehicle

Examples

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Example Embodiment

[0193] Example 1

[0194] The power battery pack 10 according to the embodiment of the present application, such as Picture 12 As shown, the length direction of the single cells 100 is arranged along the width direction B of the power battery pack, and a plurality of single cells 100 are arranged along the length direction A of the power battery pack 10. In the width direction B of the power battery pack, the pack body 200 Two single cells 100 are accommodated. The package body 200 is provided with a widthwise beam 500 and a lengthwise beam 600. The widthwise beam 500 extends along the width direction B of the power battery pack 10, and a plurality of single cells 100 are arranged and formed along the length direction A of the power battery pack 10 For the battery array, the width direction beam 500 divides the battery array into two parts along the length direction A of the power battery pack 10. In addition, the plurality of single cells 100 are arranged with two rows of batt...

Example Embodiment

[0195] Example 2

[0196] The power battery pack 10 according to the embodiment of the present application, such as Figure 13 As shown, the length direction of the single cells 100 is arranged along the width direction B of the power battery pack, and a plurality of single cells 100 are arranged along the length direction A of the power battery pack 10. In the width direction B of the power battery pack, the pack body 200 A single battery 100 is accommodated, and the single battery 100 extends from one side of the package body 200 to the other side in the width direction B of the power battery package 10. A widthwise beam 500 is provided in the package body 200, and no lengthwise beam 600 is provided. The widthwise beam 500 extends along the width direction B of the power battery pack 10, and a plurality of single cells 100 are arranged along the length direction A of the power battery pack 10 A battery array is formed, and the width direction beam 500 divides the battery array ...

Example Embodiment

[0197] Example 3

[0198] The power battery pack 10 according to the embodiment of the present application, such as Figure 14 As shown, the length direction of the single cells 100 is arranged along the width direction B of the power battery pack, and a plurality of single cells 100 are arranged along the length direction A of the power battery pack 10. In the width direction B of the power battery pack, the pack body 200 A single battery 100 is accommodated, and the single battery 100 extends from one side of the package body 200 to the other side in the width direction B of the power battery package 10. The width direction cross beam 500 and the length direction cross beam 600 are not provided in the package body 200. The first beam 201 and the second beam 202 of the package body 200 located on both sides of the width direction B of the power battery pack 10 provide support for the single battery 100, and the third beams of the package body 200 located at both ends of the leng...

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Abstract

The invention discloses a power battery pack and an electric vehicle. The power battery pack comprises a pack body and a plurality of single batteries, wherein an accommodating space is defined in thepack body, the pack body is internally provided with at least one width direction cross beam or length direction cross beam, the width direction cross beam extends in the width direction of the powerbattery pack, and the length direction cross beam extends in the length direction of the power battery pack; the accommodating space is divided into a plurality of accommodating chambers by the widthdirection cross beam or length direction cross beam; and the plurality of single batteries are set in the pack body and directly arranged in the accommodating chambers, and each accommodating chamberis internally provided with at least one single battery so as to form a battery array. The power battery pack disclosed by the embodiment of the invention has the advantages of high space utilizationrate, high energy density, strong endurance, high reliability, low cost, high quality and the like.

Description

technical field [0001] The present application relates to the technical field of batteries, in particular, to a power battery pack and an electric vehicle with the power battery pack. Background technique [0002] In the related art, such as a power battery pack applied to an electric vehicle, it mainly includes a package body and a plurality of battery modules installed in the package body, wherein each battery module group is assembled from a plurality of single cells. [0003] In the above related prior art, such as figure 1 As shown, the package body 200'' of the power battery pack 10' is mostly divided into the installation area of ​​a plurality of battery modules 400' by the width direction beam 500' and the length direction beam 600'; the battery module in the battery pack disclosed in CN107925028A The group 400' is fixed to the transverse beam 500' in the width direction or the transverse beam 600' in the longitudinal direction by means of screws or the like. The b...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M10/613H01M10/625H01M10/6554H01M10/6556H01M10/6568B60L50/64
CPCH01M10/613H01M10/625H01M10/6554H01M10/6556H01M10/6568B60K1/04B60K2001/0438H01M50/249H01M2220/20H01M50/131H01M50/209H01M50/103H01M50/367H01M10/6567H01M10/6569H01M50/119Y02E60/10H01M50/233H01M50/224H01M50/358H01M50/383B60K2001/0405B60L50/64B60L50/66H01M50/244H01M50/531H01M50/3425H01M50/35H01M50/342H01M50/317H01M10/052H01M10/647H01M10/6551B60L58/26H01M50/543H01M50/271H01M10/425H01M2010/4271
Inventor 孙华军朱燕唐江龙易宁郭舒
Owner BYD CO LTD
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