Housing assembly and battery
The present application provides a battery housing assembly and a battery. The housing assembly comprises a housing body, an electrode column and an insulating part, wherein the housing body is provided with a mounting hole, the electrode column penetrates the mounting hole, the column body comprises a first end and a second end, the second end is provided inside the housing body, the first end is provided with a restricting part, the second end is provided with a riveting part, the restricting part and the riveting part jointly clamp the insulating part and the housing body, the end surface of the second end is provided with a groove, and the groove is adjacent to the riveting part.
1 . A housing assembly, comprising
a housing body, an electrode column and an insulating part, wherein the housing body is provided with a mounting hole, the electrode column penetrates the mounting hole, the insulating part is provided between the housing body and the electrode column, the electrode column comprises a column body, the column body penetrates the mounting hole, the column body comprises a first end and a second end, the second end is provided inside the housing body, the first end is provided with a restricting part, the second end is provided with a riveting part, the restricting part and the riveting part are provided to jointly clamp the insulating part and the housing body, an end surface of the second end is provided with a groove, and the groove is adjacent to the riveting part;
wherein the riveting part comprises a plurality of riveting sheets, the plurality of riveting sheets are provided in an annular pattern around a perimeter of the column body, a gap is provided between two adjacent riveting sheets; wherein a distance between two adjacent riveting sheets ranges from 1 mm to 20 mm.
2 . The housing assembly according to claim 1 , wherein the groove is provided corresponding to each riveting sheet, the groove is arc-shaped and an arc length of the groove is longer than a width of the riveting sheet.
3 . The housing assembly according to claim 1 , wherein a ring of grooves is annularly provided around a center of the column body.
4 . The housing assembly according to claim 1 , wherein a distance between the end surface of the second end and the end surface of the first end is L1, and a distance between the riveting part and the end surface of the first end is L2, with L1>L2.
5 . The housing assembly according to claim 1 , an outer edge of the riveting part is arc-shaped, a diameter of the outer edge of the riveting part is D1, a diameter of the column body is D2, and a ratio of D1 to D2 ranges from 1.5 to 10.
6 . The housing assembly according to claim 1 , wherein a side of the restricting part near the housing body is provided with a protrusion, the protrusion abuts tightly against the insulating part.
7 . The housing assembly according to claim 6 , wherein a plurality of protrusions are provided around a perimeter of the column body; or, the protrusion is annular in shape and provided around the column body.
8 . The housing assembly according to claim 1 , wherein the insulating part comprises a first insulating part and a second insulating part, the first insulating part comprises a first hollow column and a first insulating sheet, the first hollow column is inserted into the mounting hole to separate the column body and the mounting hole, the first insulating sheet is provided between the restricting part and the housing body, and the second insulating part comprises a second hollow column and a second insulating sheet, the second hollow column is inserted into the mounting hole and connected to the first hollow column to separate the column body and the mounting hole, and the second insulating sheet is provided between the riveting part and the housing body.
9 . The housing assembly according to claim 8 , wherein a side of the first hollow column and a side of the second hollow column at least partially overlap.
10 . The housing assembly according to claim 1 , further comprises a press ring, wherein the column body penetrates the press ring, the press ring is provided between the insulating part and the riveting part.
11 . A battery comprising a housing assembly and a battery cell, wherein the battery cell is provided inside the housing body, two electrodes of the battery cell are respectively electrically connected to the housing body and the electrode column; wherein the housing assembly comprises:
a housing body, an electrode column and an insulating part, wherein the housing body is provided with a mounting hole, the electrode column penetrates the mounting hole, the insulating part is provided between the housing body and the electrode column, the electrode column comprises a column body, the column body penetrates the mounting hole, the column body comprises a first end and a second end, the second end is provided inside the housing body, the first end is provided with a restricting part, the second end is provided with a riveting part, the restricting part and the riveting part are provided to jointly clamp the insulating part and the housing body, an end surface of the second end is provided with a groove, and the groove is adjacent to the riveting part;
wherein the riveting part comprises a plurality of riveting sheets, the plurality of riveting sheets are provided in an annular pattern around a perimeter of the column body, a gap is provided between two adjacent riveting sheets; wherein a distance between two adjacent riveting sheets ranges from 1 mm to 20 mm.
12 . A battery comprising a housing assembly as claimed in claim 2 and a battery cell, wherein the battery cell is provided inside the housing body, two electrodes of the battery cell are respectively electrically connected to the housing body and the electrode column.
13 . A battery comprising a housing assembly according to claim 8 and a battery cell, wherein the battery cell is provided inside the housing body, two electrodes of the battery cell are respectively electrically connected to the housing body and the electrode column.
14 . A battery comprising a housing assembly according to claim 10 and a battery cell, wherein the battery cell is provided inside the housing body, two electrodes of the battery cell are respectively electrically connected to the housing body and the electrode column.
15 . A battery comprising a housing assembly according to claim 3 and a battery cell, wherein the battery cell is provided inside the housing body, two electrodes of the battery cell are respectively electrically connected to the housing body and the electrode column.
16 . A battery comprising a housing assembly according to claim 4 and a battery cell, wherein the battery cell is provided inside the housing body, two electrodes of the battery cell are respectively electrically connected to the housing body and the electrode column.
17 . A battery comprising a housing assembly according to claim 5 and a battery cell, wherein the battery cell is provided inside the housing body, two electrodes of the battery cell are respectively electrically connected to the housing body and the electrode column.
18 . A battery comprising a housing assembly according to claim 6 and a battery cell, wherein the battery cell is provided inside the housing body, two electrodes of the battery cell are respectively electrically connected to the housing body and the electrode column.