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Aluminum alloy battery pack for new energy vehicle

A new energy vehicle, aluminum alloy technology, applied in secondary batteries, battery pack components, circuits, etc., can solve problems such as copper bar breakage, battery module loosening, affecting the use of battery packs, etc., to extend service life, reduce Temperature change, the effect of increasing heat dissipation

Pending Publication Date: 2019-06-04
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the change of the distance between the battery modules of the existing aluminum alloy battery pack and the stretching and extrusion of the copper bars may cause the copper bars to break or the battery modules to loosen, thus affecting the use of the battery pack

Method used

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  • Aluminum alloy battery pack for new energy vehicle
  • Aluminum alloy battery pack for new energy vehicle
  • Aluminum alloy battery pack for new energy vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 and figure 2 As shown, an aluminum alloy battery pack for new energy vehicles includes an upper case 1, a lower case 2, and a plurality of battery modules 3 located between the upper case 1 and the lower case 2, the battery modules 3 are connected through the conductive copper bar 4, the screw 6 passes through the conductive copper bar 4 and is connected to the upper end of the battery module 3, the upper casing 1 is provided with a vertically downward connecting pipe 5, and the connection The tube 5 is provided with an internal thread and is connected to the screw 6 .

[0041] Thread the upper case 1 to the screw 6 that connects the conductive copper bar 4 and the battery module 3, so that the upper case 1 and the battery module 3 are connected as a whole. When the distance between the battery module 3 occurs due to temperature changes or vibration When changing, the connection point between the upper casing 1 and the screw rod 6 is fixed, and will ...

Embodiment 2

[0050] Such as figure 1 , 2 and Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that the battery protection frame 9 is embedded with a heat dissipation pipe 2 8, and the heat dissipation pipe 2 8 communicates with the heat dissipation pipe 7 through a vertical heat dissipation pipe 71. The bottom of the battery protection frame 9 is provided with a cooling pipe 2 8, which can further quickly dissipate the heat generated by the operation of the battery module 3, and the embedded method can prevent the uneven bottom of the battery protection frame 9 from causing the battery module 3 to shake.

[0051] The heat dissipation pipe 2 8 passes through the lower casing 2 and is embedded in the battery protection frame 9 .

[0052] The two radiating pipes 8 are multiple and arranged in parallel, the multiple radiating pipes 7 dissipate heat at the same time, and the heat dissipation area is large.

[0053] The heat dissipation pipe 7 and the heat dissip...

Embodiment 3

[0058] Such as image 3 As shown, the difference between this embodiment and Embodiment 2 is that the conductive copper bar 4 includes connection parts at both ends and a bending part in the middle, and the screw rod 6 connects the battery module 3 and the connection part.

[0059] The curved portion includes an upper convex portion and a lower concave portion arranged at intervals, and the conductive copper bar 4 with this structure has good tensile and compressive properties.

[0060] The upper casing 1 is provided with a second lower recess matching the lower recess.

[0061] The surface of the conductive copper bar 4 is provided with an insulating and heat-conducting layer, and the bent portion 70 is in contact with the second concave portion.

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Abstract

The invention discloses an aluminum alloy battery pack for a new energy vehicle, which solves the problem that the use of the battery pack is influenced by possible copper busbar breaking or battery module loosening as the battery module spacing of the existing aluminum alloy battery pack changes and the copper busbar is stretched and squeezed. The aluminum alloy battery pack for a new energy vehicle comprises an upper casing, a lower casing and a plurality of battery modules between the upper casing and the lower casing, wherein the battery modules are connected by a conductive copper busbar,a screw passes through the conductive copper busbar to be connected with the upper end of the battery module, the upper casing is provided with a vertically downward connecting pipe, the connecting pipe is provided with inner thread and is connected to the screw, the upper casing is provided with a cooling pipe, and the upper casing is contacted with the copper busbar. The aluminum alloy batterypack for the new energy vehicle has the advantages of stable battery module spacing and good cooling performance of the battery module.

Description

technical field [0001] The invention relates to the technical field of battery packs, in particular to an aluminum alloy battery pack for new energy vehicles. Background technique [0002] With the rapid development of new energy vehicles, the battery pack as one of the core components has also received everyone's attention. The battery pack generally includes an outer shell and a battery module, and copper with better conductivity is generally used between the two sets of battery modules. However, as the battery uses electricity, the temperature of the battery modules will change, causing the distance between the battery modules to change, so that the conductive copper bars will be stretched or squeezed to make the conductive Metal fatigue or even fracture occurs in the copper bars. In addition, during the operation of the vehicle, the battery module is in a state of vibration, and the interval will also change to a certain extent. On the other hand, the temperature of the ...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M2/20H01M10/613H01M10/625H01M10/655H01M10/6556H01M10/6566H01M10/6568
CPCY02E60/10
Inventor 齐亮赵鸿金管仁国汪志刚陈继强邓同生
Owner JIANGXI UNIV OF SCI & TECH
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