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CN-224217618-U - Battery pack and electricity utilization device

CN224217618UCN 224217618 UCN224217618 UCN 224217618UCN-224217618-U

Abstract

The application discloses a battery pack and an electric device, and belongs to the technical field of batteries, wherein the battery pack is provided with a first direction and comprises a box body, a battery pack, a wire harness and a bracket, the box body is provided with a containing cavity, the battery pack, the wire harness and the bracket are all arranged in the containing cavity, the battery pack comprises a plurality of battery monomers which are arranged along the first direction, and the wire harness is connected with the battery pack in a conductive manner and is arranged partially around the battery pack; the wire harness comprises a first bending part, the bracket is connected with the box body and comprises a second bending part, the second bending part is arranged on the periphery of the battery pack, the second bending part is provided with a containing groove with the same extending direction, and the first bending part is arranged in the containing groove. The first bending part is accommodated by the accommodating groove of the second bending part, so that the wire harness is limited and fixed, the bending radius of the first bending part can be limited, the space occupied by the wire harness when the wire harness is arranged in the accommodating cavity is reduced, and the volume energy density of the battery pack is improved.

Inventors

  • Sang Jinhe

Assignees

  • 欣旺达动力科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250516

Claims (10)

  1. 1. A battery pack having a first orientation, comprising: the box body is provided with a containing cavity; the battery pack is arranged in the accommodating cavity and comprises a plurality of battery monomers which are arranged along the first direction; The wire harness is arranged in the accommodating cavity and is in conductive connection with the battery pack, and part of the wire harness is arranged around the battery pack; the support, set up in hold the chamber, and with the box is connected, the support includes the second portion of bending, the second portion of bending set up in the week side of group battery, the second portion of bending has the accommodation groove, the extending direction of the second portion of bending with the extending direction of accommodation groove is the same, the first portion of bending set up in the accommodation groove.
  2. 2. The battery pack according to claim 1, wherein the case includes a bottom plate, and the second bent portion includes: The support plate is connected with the bottom plate; the first side plate is connected to one side, away from the bottom plate, of the supporting plate; The second side plate is arranged on one side, far away from the battery pack, of the first side plate, is arranged at intervals with the first side plate, and is connected with the supporting plate; The supporting plate, the first side plate and the second side plate enclose the accommodating groove.
  3. 3. The battery pack of claim 2, wherein the battery pack comprises a plurality of battery cells, The battery pack has a second direction perpendicular to the first direction; the first side plate includes: a first section connected to the support plate and disposed at one side of the battery pack in the first direction; The first transition section is respectively connected with the first section and the supporting plate; And the second section is connected to one side, far away from the first section, of the first transition section, and is arranged on one side of the battery pack along the second direction, and the second section is connected with the supporting plate.
  4. 4. The battery pack of claim 3, wherein the second side plate comprises: The third section is connected with the supporting plate, is arranged on one side of the first section far away from the battery pack along the first direction, and is arranged at intervals from the first section; The second transition section is arranged on one side of the first transition section far away from the battery pack and is arranged at intervals with the first transition section; The fourth section is connected to one side, far away from the third section, of the second transition section and is connected with the supporting plate, and the fourth section is arranged on one side, far away from the battery pack, of the second section along the second direction and is arranged at intervals with the second section.
  5. 5. The battery pack of claim 4, wherein the first transition section and the second transition section are each curved, and the concave surface of the first transition section and the concave surface of the second transition section are both oriented toward the battery pack.
  6. 6. The battery pack of claim 4, wherein the battery pack comprises a plurality of battery cells, The first section is provided with a first through hole, the third section is provided with a third through hole, and the first through hole and the third through hole are arranged opposite to each other; The second section is provided with a second through hole, the fourth section is provided with a fourth through hole, and the second through hole and the fourth through hole are oppositely arranged; the battery pack further comprises a first flexible fixing piece and a second flexible fixing piece, wherein the first flexible fixing piece penetrates through the first through hole, the third through hole and the second bending portion, and the second flexible fixing piece penetrates through the second through hole, the fourth through hole and the second bending portion.
  7. 7. The battery pack according to claim 2, wherein the battery pack has a third direction perpendicular to the first direction, the bracket further comprises a fixing portion connected to the support plate and located on a side of the second side plate away from the first side plate, the fixing portion has a fixing hole penetrating the fixing portion in the third direction.
  8. 8. The battery pack of claim 7, wherein the bracket further comprises a plurality of the fixing portions, the plurality of fixing portions being spaced apart and each being connected to the support plate.
  9. 9. The battery pack of claim 2, wherein the battery pack comprises a plurality of battery cells, The bracket further comprises a third side plate, the third side plate is connected to one side, far away from the supporting plate, of the first side plate, and the third side plate is provided with a limiting groove; the wire harness comprises a branch wire, the branch wire is connected with the first bending part and extends to the outer side of the accommodating groove, the branch wire is electrically connected with the battery pack, and the branch wire is connected with the third side plate; The battery pack further comprises a third flexible fixing piece, the third flexible fixing piece is arranged on the outer sides of the branch line and the third side plate in a surrounding mode, so that the branch line is connected with the third side plate, and part of the third flexible fixing piece is arranged in the limiting groove.
  10. 10. An electrical device comprising a battery pack according to any one of claims 1-9.

Description

Battery pack and electricity utilization device Technical Field The application belongs to the technical field of batteries, and particularly relates to a battery pack and an electric device. Background After a plurality of battery monomers in the battery pack are connected in series and parallel, sampling communication is needed through a plurality of wire harnesses. The multi-strand wire harness is usually surrounded outside the battery pack formed by a plurality of battery monomers, and the multi-strand wire harness is required to be fixed to ensure the safety of a circuit in the battery pack, but the wire harness occupies a large space due to the fact that the wire harness is not effectively fixed at the edge of the battery pack at present, and the volume energy density of the battery pack is not beneficial to improvement. Disclosure of utility model The embodiment of the utility model provides a battery pack, which aims to solve the problems that the occupied space of a wire harness is large and the improvement of the volume energy density of the battery pack is not facilitated because the conventional wire harness is not effectively fixed at the edge of a battery pack. The battery pack provided by the embodiment of the application has a first direction and comprises: the box body is provided with a containing cavity; the battery pack is arranged in the accommodating cavity and comprises a plurality of battery monomers which are arranged along the first direction; The wire harness is arranged in the accommodating cavity and is in conductive connection with the battery pack, and part of the wire harness is arranged around the battery pack; The support is arranged in the accommodating cavity and is connected with the box body, the support comprises a second bending part, the second bending part is arranged on the periphery of the battery pack, the second bending part is provided with an accommodating groove with the same extending direction, and the first bending part is arranged in the accommodating groove. In some embodiments, the case includes a bottom plate, and the second fold includes: The support plate is connected with the bottom plate; the first side plate is connected to one side, away from the bottom plate, of the supporting plate; The second side plate is arranged on one side, far away from the battery pack, of the first side plate, is arranged at intervals with the first side plate, and is connected with the supporting plate; The supporting plate, the first side plate and the second side plate enclose the accommodating groove. In some embodiments, the battery pack has a second direction perpendicular to the first direction; the first side plate includes: a first section connected to the support plate and disposed at one side of the battery pack in the first direction; The first transition section is respectively connected with the first section and the supporting plate; And the second section is connected to one side, far away from the first section, of the first transition section, and is arranged on one side of the battery pack along the second direction, and the second section is connected with the supporting plate. In some embodiments, the second side panel comprises: The third section is connected with the supporting plate, is arranged on one side of the first section far away from the battery pack along the first direction, and is arranged at intervals from the first section; The second transition section is arranged on one side of the first transition section far away from the battery pack and is arranged at intervals with the first transition section; The fourth section is connected to one side, far away from the third section, of the second transition section and is connected with the supporting plate, and the fourth section is arranged on one side, far away from the battery pack, of the second section along the second direction and is arranged at intervals with the second section. In some embodiments, the first transition section and the second transition section are both curved, and the concave surface of the first transition section and the concave surface of the second transition section face the battery pack. In some embodiments of the present invention, in some embodiments, The first section is provided with a first through hole, the third section is provided with a third through hole, and the first through hole and the third through hole are arranged opposite to each other; The second section is provided with a second through hole, the fourth section is provided with a fourth through hole, and the second through hole and the fourth through hole are oppositely arranged; the battery pack further comprises a first flexible fixing piece and a second flexible fixing piece, wherein the first flexible fixing piece penetrates through the first through hole, the third through hole and the second bending portion, and the second flexible fixing piece penetrates through the second throug