Battery box and battery module
View Patent ↗A battery box includes at least two end plates, at least two side plates, and a plurality of welding members. One of the at least two end plates is provided between two adjacent side plates of the at least two side plates. The at least two end plates and the at least two side plates are connected to one another to enclose a cavity of the battery box. The plurality of welding members are formed by bending an end portion of an end plate of the at least two end plates multiple times. The end portion of the end plate is configured to implement the connection of at least two side plates and the at least two end plates to one another to enclose the cavity of the battery box. The plurality of welding members are configured to be welded to a corresponding side plate.
1. A battery box, comprising:
at least two end plates;
at least two side plates, wherein one of the at least two end plates is provided between two adjacent side plates of the at least two side plates, and wherein the at least two end plates and the at least two side plates are connected to one another to enclose a cavity of the battery box; and
a plurality of welding members, wherein the plurality of welding members are formed by bending an end portion of an end plate of the at least two end plates multiple times, wherein the end portion of the end plate is configured to implement the connection of at least two side plates and the at least two end plates to one another to enclose the cavity of the battery box;
wherein:
the plurality of welding members are configured to be welded to a corresponding side plate;
the end portion of the end plate for enclosure is configured to bend twice to form two welding members, wherein the end portion of the end plate for enclosure is configured to bend in a direction away from the cavity of the battery box to form a first welding member, and the end portion of the end plate for enclosure is configured to bend in a direction deviating from an adjacent side plate to form a second welding member; and
the first welding member is perpendicular to other parts of the end plate except the end portion, the second welding member is parallel to the first welding member, and the second welding member and the first welding member are attached to each other.
2. The battery box according to claim 1 , wherein the plurality of welding members are located outside of the cavity of the battery box.
3. The battery box according to claim 1 , wherein a bottom portion of the end plate is configured to bend for at least once to form a first stiffening arm, and the first stiffening arms is perpendicular to one of the at least two side plates.
4. The battery box according to claim 3 , wherein a connecting member of the battery box is configured to connect to a case of a battery pack though the first stiffening arm.
5. The battery box according to claim 3 , wherein the first stiffening arm is located outside of the cavity of the battery box.
6. The battery box according to claim 1 , wherein a top portion of the end plate is configured to bend for at least once to form a second stiffening arm, the second stiffening arm is perpendicular to one of the at least two side plates, and the second stiffening arm is located outside of the cavity of the battery box.
7. The battery box according to claim 1 , wherein the side plate is configured to bend for multiple times to form a connecting arm, and the connecting arm is perpendicular to one of the at least two end plates.
8. The battery box according to claim 7 , wherein a connecting member of the battery box is configured to connect to a case of a battery pack though the connecting arm.
9. The battery box according to claim 8 , wherein the connecting arm comprises:
two oppositely provided bending portions, wherein the two bending portions are provided with a plurality of connecting holes corresponding to each other; and
the connecting member of the battery box is configured to connect to the case of the battery pack though the plurality of connecting holes.
10. The battery box according to claim 7 , wherein the connecting arm is located outside of the cavity of the battery box.
11. The battery box according to claim 7 , wherein the connecting arm is located in a middle portion of the side plate.
12. The battery box according to claim 1 , wherein the end plate and the side plate are connected by penetration welding, and a penetration welding area is configured to connect to:
the plurality of welding members, and
the end plate or the side plate.
13. The battery box according to claim 12 , wherein a welding seam is located at one side of the side plate away from the welding member.
14. The battery box according to claim 1 , wherein the plurality of welding members are provided in connecting positions between an end plate and a side plate adjacent to each other.
15. The battery box according to claim 1 , wherein the battery box is made of a steel material or aluminum material.
16. A battery module, comprising:
a battery box, wherein the battery box comprise:
at least two end plates;
at least two side plates, wherein one of the at least two end plates is provided between two adjacent side plates of the at least two side plates, and wherein the at least two end plates and the at least two side plates are connected to one another to enclose a cavity of the battery box; and
a plurality of welding members, wherein the plurality of welding members are formed by bending an end portion of an end plate of the at least two end plates multiple times, wherein the end portion of the end plate is configured to implement the connection of at least two side plates and the at least two end plates to one another to enclose the cavity of the battery box;
wherein:
the plurality of welding members are configured to be welded to a corresponding side plate;
the end portion of the end plate for enclosure is configured to bend twice to form two welding members, wherein the end portion of the end plate for enclosure is configured to bend in a direction away from the cavity of the battery box to form a first welding member, and the end portion of the end plate for enclosure is configured to bend in a direction deviating from an adjacent side plate to form a second welding member; and
the first welding member is perpendicular to other parts of the end plate except the end portion, the second welding member is parallel to the first welding member, and the second welding member and the first welding member are attached to each other; and
a plurality of battery cells stacked together and provided in the cavity.
17. The battery module according to claim 16 , wherein the plurality of welding members are located outside of the cavity of the battery box.
18. The battery module according to claim 16 , wherein a bottom portion of the end plate is configured to bend for at least once to form a first stiffening arm, and the first stiffening arms is perpendicular to one of the at least two side plates.
19. The module according to claim 16 , wherein a top portion of the end plate is configured to bend for at least once to form a second stiffening arm, the second stiffening arm is perpendicular to one of the at least two side plates, and the second stiffening arm is located outside of the cavity of the battery box.
20. An apparatus, comprising a battery module adapted to provide power for the apparatus, the battery module comprising:
a battery box, wherein the battery box comprise:
at least two end plates;
at least two side plates, wherein one of the at least two end plates is provided between two adjacent side plates of the at least two side plates, and wherein the at least two end plates and the at least two side plates are connected to one another to enclose a cavity of the battery box; and
a plurality of welding members, wherein the plurality of welding members are formed by bending an end portion of an end plate of the at least two end plates multiple times, wherein the end portion of the end plate is configured to implement the connection of at least two side plates and the at least two end plates to one another to enclose the cavity of the battery box;
wherein:
the plurality of welding members are configured to be welded to a corresponding side plate;
the end portion of the end plate for enclosure is configured to bend twice to form two welding members, wherein the end portion of the end plate for enclosure is configured to bend in a direction away from the cavity of the battery box to form a first welding member, and the end portion of the end plate for enclosure is configured to bend in a direction deviating from an adjacent side plate to form a second welding member; and
the first welding member is perpendicular to other parts of the end plate except the end portion, the second welding member is parallel to the first welding member, and the second welding member and the first welding member are attached to each other; and
a plurality of battery cells stacked together and provided in the cavity.