电池包及用电设备

Abstract

本实用新型提供一种电池包及用电设备，电池包包括多个间隔设置的电池模组、第一导热结构和风冷驱动件；第一导热结构设置于相邻的电池模组之间，并与相邻的电池模组分别连接，第一导热结构形成有空气流道，用于与空气流道中流通的空气进行换热；风冷驱动件用于驱动空气在空气流道中流通。本实用新型通过在电池包的多个电池模组之间设置第一导热结构以用于进行热传递，第一导热结构内部形成有空气流道，用于使空气顺利及有针对性的流动，以此与第一导热结构形成更为充分的接触，基于风冷驱动件的驱动，使得空气在空气流道中顺利及快速的流通，进而能够更为迅速地带走第一导热结构所传导的热量，使得对电池包的降温更为快速。

Claims

1. A battery pack, characterized by, include: Multiple battery modules spaced at intervals; A first heat-conducting structure is located at least partially between adjacent battery modules and is connected to the adjacent battery modules respectively. The first heat-conducting structure forms an airflow channel for exchanging heat with the air flowing in the airflow channel. An air-cooled drive unit is used to drive air to circulate in the airflow channel.

2. The battery pack of claim 1, wherein, The first heat-conducting structure includes at least one heat-conducting wall and at least one row of first heat-conducting fins. Each heat-conducting wall is provided with a corresponding row of first heat-conducting fins. Each heat-conducting wall is adapted to form at least a portion of the airflow channel. Adjacent battery modules are respectively connected to at least one heat-conducting wall of the first heat-conducting structure, wherein the first heat-conducting fins are located within the airflow channel.

3. The battery pack of claim 2, wherein, Multiple first heat-conducting fins are arranged at intervals along the extension direction of the airflow channel, and the extension direction of the first heat-conducting fins intersects with the extension direction of the airflow channel.

4. The battery pack of claim 2, wherein, The first heat-conducting structure includes two heat-conducting walls arranged opposite to each other and two rows of the first heat-conducting fins arranged opposite to each other.

5. The battery pack of claim 4, wherein, The first heat-conducting structure also includes two cover plates disposed opposite to each other. The two cover plates are located between the two heat-conducting walls and are respectively connected to the heat-conducting walls. The cover plates and the heat-conducting walls together form the airflow channel.

6. The battery pack of claim 4, wherein, The ratio of the spacing L1 between the two rows of the first heat-conducting fins to the width L2 of the first heat-conducting fins is in the range of 1.5-2; and / or; The ratio of the distance L1 between the two rows of the first heat-conducting fins to the distance L3 between adjacent first heat-conducting fins in each row is in the range of 2-2.

5.

7. The battery pack according to any one of claims 1-6, characterized in that, The air-cooled drive unit is located outside the space between adjacent battery modules.

8. The battery pack of claim 7, wherein, The first heat-conducting structure further includes a cover, the cover having a cavity communicating with the airflow channel, and the air-cooling drive component being disposed within the cavity of the cover.

9. The battery pack of claim 8, wherein, The cross-sectional area of ​​the cavity gradually decreases from the end near the air-cooled drive component to the end near the airflow channel.

10. The battery pack of any one of claims 1-6, wherein, It also includes a second heat-conducting structure, which is disposed on the side of the battery module away from the first heat-conducting structure.

11. The battery pack of claim 10, wherein, The second heat-conducting structure includes a plurality of spaced-apart second heat-conducting fins. The battery module includes a plurality of cells arranged along a first direction. The plurality of second heat-conducting fins are spaced-apart along a second direction. The second heat-conducting fins extend along the first direction, and the first direction intersects with the second direction.

12. The battery pack of claim 10, wherein, The battery module includes a restraint member and a plurality of battery cells arranged side by side. A portion of the first heat-conducting structure and a portion of the second heat-conducting structure respectively form an accommodating gap with the battery cells. The restraint member passes through the accommodating gap and surrounds the outer periphery of the plurality of battery cells to fix the plurality of battery cells.

13. An electrical appliance, characterized in that, Includes the battery pack as described in any one of claims 1-12.

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