Power battery pack dissipation device for hybrid electric vehicle

A technology for hybrid electric vehicles and power battery packs, which is applied in the field of battery pack cooling devices for hybrid electric vehicles. It can solve problems such as uneven temperature field, deviation of wind pressure and flow velocity, and complex structure of air inlet pipes, and achieve uniform temperature field. , the effect of consistent air duct length
CN103779633AActive Publication Date: 2014-05-07科力远混合动力技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
科力远混合动力技术有限公司
Publication Date
2014-05-07

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Abstract

The invention relates to a power battery pack dissipation device for a hybrid electric vehicle and aims to overcome the defects that the position arrangement of the air inlet and the air outlet of the existing battery pack dissipation device is not reasonable, which causes that the lengths of air channels in the battery pack are not consistent, the deviation between the wind pressure and the flow rate is caused, the dissipation effect of the battery pack is not consistent, the temperature field part is not uniform, and the service life and the performance of the battery pack are influenced. The battery pack is placed in the space with air inlet windows; the volume of the space is greater than the size of the battery pack; the air inlets are directly communicated with the space; the number of the air inlets is the same as that of support frames in the battery pack, and the positions of the air inlets correspond to those of the support frames; a battery module in the battery pack is partitioned off into equant units; the area of each air inlet corresponding to each unit is the same; the air inlets are opposite to the air outlets, and the air inlets correspond to the support frames, so that the cooling air in the air inlets descends along the support frames and does not cause eddies at the support frames, the lengths in air channels of the battery pack are consistent, the temperature field in the battery pack keeps uniform, and the situation that the dissipation effect in the battery pack is the same is ensured.
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Description

technical field

[0001] The invention relates to a battery pack structure, in particular to a battery pack cooling device for a hybrid electric vehicle which keeps the battery pack in an optimum temperature range during operation. Background technique

[0002] As the main energy storage element of a hybrid vehicle, the battery pack is a pipe component of a hybrid vehicle, and its performance and service life will affect the performance of the vehicle. The vehicle battery pack is composed of multiple battery cells connected in series to form a module, and then the battery pack is formed. The loading space on the vehicle is limited, and the number of batteries required by the vehicle is large, and the batteries are closely arranged and connected. When the vehicle is running under different driving conditions such as high speed, low speed, acceleration, deceleration, etc., the battery will be discharged at different rates, and a large amount of heat will be generated at differen...

Claims

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