Battery pack shell, battery pack and vehicle
A technology for battery packs and casings, which is applied in the fields of battery packs, battery pack casings, and vehicles. It can solve problems such as potential safety hazards, fire and explosion, and battery deformation, and achieve the goals of simplifying the structure, strengthening impact resistance, and reducing design strength. Effect
Active Publication Date: 2021-12-17
BYD CO LTD
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
When the side of the battery pack encounters a collision or a force is applied, the long side beams of the tray will sag inward under the force. As the force increases, the force will gradually be transmitted to the internal battery cells, and the battery cells will be deformed and leak due to the force. It will catch fire and explode, and there is a certain safety hazard
Method used
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Embodiment Construction
[0067] Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary, and embodiments of the present invention are described in detail below.
[0068] Such as figure 1 As shown, a vehicle 1000 includes a vehicle body and a battery pack 100 . The vehicle body includes a cross member 200 . It can be understood that, in a specific implementation, the vehicle body may also include other components such as longitudinal beams and roof beams, and the vehicle body may also be understood as a frame of the vehicle 1000 . Since the present application does not focus on the improvement of the vehicle body itself, the entire vehicle body is not shown in the figure, only the cross member 200 of the vehicle body is shown.
[0069] The vehicle 1000 uses the battery pack 100 as a power source or as one of the power sources. For example, the vehicle 1000 can be an electric vehicle powered by the battery pack 100...
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The invention discloses a battery pack shell, a battery pack adopting the battery pack shell and a vehicle adopting the battery pack. The battery pack shell is provided with a tray, a middle beam, a cover plate and a mounting piece; and the tray is provided with a bottom plate and a plurality of edge beams, the bottom plate and the edge beams together form an accommodating space for accommodating the battery units, one side of the accommodating space is open, and the cover plate is used for closing the open side of the accommodating space. The plurality of boundary beams comprise two first boundary beams which are oppositely arranged, the middle beam is located in the accommodating space, a preset distance is formed between the two ends of the middle beam in the length direction and the two first boundary beams or the middle beam is in contact with the two first boundary beams, and the length of the middle beam is equal to the projection size of the battery unit in the length direction. The mounting piece is used for sequentially penetrating through and fixing the bottom plate, the middle beam and the cover plate and is fixedly connected with a vehicle body cross beam. The battery pack shell aims to improve the capability of resisting side impact of the battery pack shell and is beneficial to reducing the design strength of a vehicle body cross beam.
Description
technical field [0001] The invention relates to the field of batteries, in particular to a battery pack casing, a battery pack using the battery pack casing and a vehicle with the battery pack. Background technique [0002] In a vehicle that uses a battery pack as a power source or as one of the power sources, the battery pack is usually provided with a tray, and the fixing of the battery pack in the vehicle is usually achieved by bolting the side beam of the tray to the vehicle. The tray usually includes two long side beams and two short side beams arranged on the periphery. Along the front and rear direction of the vehicle body, that is, the direction of travel of the vehicle, the fixing points of the battery pack are distributed on the two short side beams of the tray. Roughly perpendicular to the direction of travel of the vehicle, the fixing points of the battery pack are distributed on the two long side beams of the pallet. The cells are stacked in the middle of the t...
Claims
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IPC IPC(8): H01M50/244H01M50/249H01M50/271H01M50/242B60K1/04
CPCB60K1/04H01M2220/20B60K2001/0438H01M50/249H01M50/209H01M50/224H01M50/262H01M50/271H01M50/289B60L50/64B60L3/0007Y02T10/70Y02E60/10H01M50/244H01M50/264H01M50/293H01M50/291H01M50/242H01M50/298B60R16/0215
Inventor 宋娜谭亮稳谭晶陈文会
Owner BYD CO LTD