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CN-121983756-A - Battery and electric equipment

CN121983756ACN 121983756 ACN121983756 ACN 121983756ACN-121983756-A

Abstract

The invention relates to the technical field of battery structures and discloses a battery and electric equipment, which comprises a box body, wherein a plurality of battery units are arranged in the box body, an expansion beam is arranged between two adjacent battery units, a lifting point structure assembly is arranged on the expansion beam, an integrated busbar comprises a connecting row which spans the expansion beam to electrically connect the two adjacent battery units, the connecting row is provided with an avoidance groove for avoiding the lifting point structure assembly, the lifting point structure assembly can penetrate out of the avoidance groove along the Z direction, the Z direction is the height direction of the box body, and first pier thin areas for welding connection with electric cores of the battery units are arranged on two opposite ends of the connecting row. The battery and the electric equipment can enable the battery to be hoisted more easily, and are beneficial to improving the structural strength of the integrated busbar.

Inventors

  • WU CHEN
  • WU CHUNHUA
  • YU HONGJIANG
  • JIN QUANLIANG

Assignees

  • 江苏正力新能电池技术股份有限公司

Dates

Publication Date
20260505
Application Date
20260228

Claims (10)

  1. 1. A battery, comprising: The battery pack comprises a box body (10), a plurality of battery units are arranged in the box body (10), an expansion beam (101) is arranged between two adjacent battery units, and a hanging point structure assembly (102) is arranged on the expansion beam (101); The integrated busbar (1) comprises a connecting row (11) which spans the expansion beam (101) to electrically connect two adjacent battery units, wherein the connecting row (11) is provided with an avoidance groove (111) for avoiding the hanging point structure assembly (102), the hanging point structure assembly (102) can penetrate out of the avoidance groove (111) along the Z direction, and the Z direction is the height direction of the box body (10); And the two opposite end parts of the connecting row (11) are respectively provided with a first pier thin region (112) for welding connection with the battery cells of the battery unit.
  2. 2. The battery according to claim 1, characterized in that the integrated busbar (1) comprises an insulating tray (12); the insulation tray (12) is provided with a penetrating positioning hole (121) with a shape matched with the connection row (11), and the insulation tray (12) further comprises a supporting part (122) extending into the penetrating positioning hole (121) to support the connection row (11); The supporting part (122) is convexly provided with a positioning column (123), the connecting row (11) is provided with a positioning through hole (1101) corresponding to the positioning column (123), the connecting row (11) is matched with the positioning through hole (1101) through the positioning column (123) to be installed in the penetrating positioning hole (121) in a limiting mode, and the supporting part (122) is prevented from avoiding the first pier thin area (112); The two ends of the penetrating positioning hole (121) along the X direction are provided with the supporting parts (122) in a protruding mode, so that the two ends of the connecting row (11) along the X direction are mounted on the supporting parts (122) in a limiting mode; The positioning through holes (1101) and the first pier thin areas (112) on the connecting row (11) are arranged at intervals along the Y direction, and the X direction and the Y direction are mutually perpendicular.
  3. 3. The battery according to claim 2, characterized in that the connection row (11) is further provided with a second thinned region (113); the integrated busbar (1) further comprises a flexible circuit board (13), and the flexible circuit board (13) is connected with the second pier thin region (113) through a connecting nickel sheet (20) so as to detect information of the battery cell; the second pier thin region (113) and the first pier thin region (112) are arranged at intervals along the Y direction.
  4. 4. A battery according to claim 3, characterized in that the connection row (11) comprises a first connection portion (31), a second connection portion (32) and a third connection portion (33), the first connection portion (31) and the second connection portion (32) being arranged opposite and connected on the same side by the third connection portion (33) to form the relief groove (111); The first connecting part (31) and the second connecting part (32) extend along the Y direction, and at least one of the first connecting part (31) and the second connecting part (32) is provided with the first pier thin region (112) and the positioning through hole (1101) at the same time, and the first pier thin region (112) extends to the edge of the first connecting part (31) and the edge of the second connecting part (32) which deviate from the avoidance groove (111); the second pier thin region (113) extends to the outer side edge of the connecting row (11) in a direction away from the avoiding groove (111) so as to be connected with the connecting nickel sheet (20) extending along the X direction.
  5. 5. The battery according to claim 4, wherein a concave buffer arch groove (1141) is provided at a middle position of the third connecting portion (33) on a side close to the battery cell in the Z direction.
  6. 6. The battery according to claim 5, characterized in that part of the outer surface of the connection row (11) is wrapped with an insulating protective layer (114); The insulation protection layer (114) wraps the buffer arch groove (1141) and avoids the first pier thin region (112), the second pier thin region (113) and the positioning through hole (1101).
  7. 7. A battery according to claim 3, characterized in that the flexible circuit board (13) is provided with a through groove (1301) for avoiding the connection row (11), and the flexible circuit board (13) is provided with a strip-shaped waist-shaped hole (13001) for avoiding a plurality of cell explosion-proof valves of the battery unit.
  8. 8. The battery according to claim 4, wherein the third connecting portion (33) has a width larger than that of the first connecting portion (31) and the second connecting portion (32), the third connecting portion (33) and the first connecting portion (31) and the second connecting portion (32) are connected by a chamfer connecting portion (331), respectively, and the chamfer connecting portion (331) has a width larger than that of the first connecting portion (31) and the second connecting portion (32).
  9. 9. The battery according to claim 8, wherein the second pier thin region (113) is provided on the chamfer connection portion (331).
  10. 10. A powered device comprising a battery as claimed in any one of claims 1 to 9.

Description

Battery and electric equipment Technical Field The invention relates to the technical field of battery structures, in particular to a battery and electric equipment. Background The existing battery is generally provided with an expansion beam to relieve expansion between two adjacent battery cell groups, so that the safety of the battery is ensured, the expansion beam influences the hoisting position of the box body, and the hoisting position possibly collides with the integrated busbar. For the larger battery, the lifting of the battery becomes more troublesome, the lifting lug distance on two sides is overlong, the frame of the battery is easy to turn on one's side or deform in the lifting process, and the assembly efficiency of the battery is greatly influenced. In addition, because the battery size is great, the length dimension of the female row of integration becomes longer, and the intensity of the female row of integration is difficult to satisfy the equipment demand, and the female row of integration not only appears bending deformation's in the equipment in-process condition easily, and the female row of integration is located expansion roof beam top position department and exists even and has the fracture risk because of electric core inflation deformation. In view of this, it is necessary to design a battery and electric equipment, which can make the battery easier to hoist and mount, and is beneficial to improving the structural strength of the integrated busbar. The above information is presented as background information only to aid in the understanding of the present disclosure and is not intended or admitted to be prior art relative to the present disclosure. Disclosure of Invention The invention provides a battery and electric equipment, which can enable the battery to be hoisted more easily and are beneficial to improving the structural strength of an integrated busbar. In order to achieve the above object, in a first aspect, the present invention provides the following technical solutions: A battery, comprising: The battery pack comprises a box body, a plurality of battery units and a plurality of expansion beams, wherein the battery units are arranged in the box body, the expansion beams are arranged between two adjacent battery units, and a lifting point structure assembly is arranged on each expansion beam; The integrated busbar comprises a connecting row which spans the expansion beam to electrically connect two adjacent battery units, the connecting row is provided with an avoidance groove for avoiding the lifting point structure assembly, the lifting point structure assembly can penetrate out of the avoidance groove along the Z direction, and the Z direction is the height direction of the box body; And the two opposite end parts of the connecting row are respectively provided with a first pier thin area for welding connection with the battery cells of the battery unit. Optionally, the integrated busbar includes an insulating tray; The insulating tray is provided with a penetrating positioning hole with a shape matched with the connecting row, and the insulating tray further comprises a supporting part extending into the penetrating positioning hole to support the connecting row; The supporting part is convexly provided with a positioning column, the connecting row is provided with a positioning through hole corresponding to the positioning column, the connecting row is matched with the positioning through hole through the positioning column to be installed in the penetrating positioning hole in a limiting mode, and the supporting part avoids the first pier thin area; The two ends of the penetrating positioning hole along the X direction are convexly provided with the supporting parts, so that the two ends of the connecting row along the X direction are both in limit installation on the supporting parts; the positioning through holes on the connecting rows and the first pier thin areas are arranged at intervals along the Y direction, and the X direction and the Y direction are mutually perpendicular. Optionally, a second pier thin region is further arranged on the connection row; The integrated busbar further comprises a flexible circuit board, and the flexible circuit board is connected with the second pier thin area through a connecting nickel sheet so as to detect information of the battery cell; The second pier thin area and the first pier thin area are arranged at intervals along the Y direction. Optionally, the connection row includes a first connection portion, a second connection portion, and a third connection portion, where the first connection portion and the second connection portion are disposed opposite to each other and are connected on the same side by the third connection portion to form the avoidance groove; The first connecting part and the second connecting part extend along the Y direction, and at least one of the first connecting part and the second connecting