Battery pack case

Abstract

The utility model discloses a battery package box body, including box and reinforcing part, the side frame of box is inverted L shape frame structure, the corner part of the side frame and crossbeam of box forms and inserts reinforcing part, and the side of reinforcing part is engaged with the side frame, and the bottom of reinforcing part is fixed with the crossbeam, and the top of reinforcing part is fixed with the top of side frame. The utility model has the advantages of: on the basis of the welding of the existing crossbeam and frame, the connecting strength of side frame and crossbeam is improved through setting reinforcing part.

Claims

1. A battery pack housing, characterized in that, Includes a box body and a reinforcing member. The side frame of the box body is an inverted L-shaped frame structure. The reinforcing member is partially embedded at the corner formed between the side frame of the box body and the crossbeam (11). The side of the reinforcing member is engaged with the side frame. The bottom of the reinforcing member is attached to and fixed with the crossbeam (11). The top of the reinforcing member is fixed to the top of the side frame.

2. The battery pack housing according to claim 1, characterized in that, The side frame vertical frame (101) is set on the crossbeam (11). The crossbeam (11) and the side frame vertical frame (101) are perpendicular to each other. The height of the crossbeam (11) is lower than the height of the side frame horizontal frame (102), and they are welded together. The side frame horizontal frame (102), the side frame vertical frame (101) and the crossbeam (11) enclose and form a corner.

3. The battery pack enclosure of claim 1, wherein, The reinforcing member includes a T-shaped plate (20) and a cavity plate (21). The top surface of the crossbeam (11) is connected to the bottom surface of the T-shaped plate (20), and the top surface of the T-shaped plate (20) is connected to the side frame cross frame (102). An inverted L-shaped cavity plate (21) is provided near the T-shaped plate (20) of the side frame. The cavity plate (21), the cross plate (201), and the longitudinal plate (202) enclose and form a cavity. The cavity is fitted into the corner, and the fitting surfaces are connected to each other.

4. The battery pack enclosure of claim 3, wherein, The L-shaped plate (20) includes a horizontal plate (201) and a vertical plate (202). The horizontal plate (201) is attached to the top surface of the crossbeam (11) and riveted to each other. The vertical plate (202) is attached to the side of the side frame (102) and riveted to each other.

5. The battery pack enclosure of claim 3, wherein, The L-shaped plate (20) is integrally formed.

6. The battery pack enclosure of claim 3, wherein, The side of the cavity plate (21) is fitted with the longitudinal frame of the side frame (101) and connected to each other by seam welding. The top surface of the cavity plate (21) is fitted with the bottom surface of the transverse frame of the side frame (102) and connected to each other by seam welding.

7. The battery pack enclosure of claim 2, wherein, A set of diagonal ribs (103) is provided inside the vertical frame (101) of the side frame, and the set of diagonal ribs (103) is arranged symmetrically along the height direction.

8. The battery pack enclosure of claim 1, wherein, It also includes a seal, which is provided between the top of the side frame and the box cover (12) of the box body.

9. The battery pack housing according to claim 8, characterized in that, The sealing element includes an outer sealing cotton (30), and the outer sealing cotton (30) is provided between the top of the side frame longitudinal frame (101) and the box cover (12). The flange edge of the box cover (12), the outer sealing cotton (30) and the top of the side frame longitudinal frame (101) are sealed by bolts.

10. The battery pack housing according to claim 8, characterized in that, The sealing element includes an inner sealing cotton (31), and the inner sealing cotton (31) is provided between the top of the side frame (102) and the box cover (12).

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