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CN-224217632-U - Battery pack and power utilization device

CN224217632UCN 224217632 UCN224217632 UCN 224217632UCN-224217632-U

Abstract

The utility model relates to the technical field of batteries and discloses a battery pack and an electric device, wherein the battery pack comprises a box body, a cover body, a sliding rail, a fixing piece and a battery pack; the battery pack comprises a shell and an explosion-proof valve, the connecting part is provided with an air leakage hole corresponding to the explosion-proof valve, the sliding rail is arranged in the shell, the sliding rail is connected with the box, the fixing piece comprises a fixing support, the fixing support comprises a sliding part and a connecting part, the sliding part is connected with the sliding rail in a sliding mode, the battery pack comprises single batteries, the single batteries are arranged in the containing cavity, the single batteries comprise a shell and the explosion-proof valve, the connecting part is provided with the air leakage hole corresponding to the explosion-proof valve, and the single batteries can be quickly and conveniently taken out from the containing cavity and replaced when any single battery fails by arranging the sliding rail in the box and arranging the sliding part on the fixing support, so that the battery pack is convenient to maintain, disassemble and recover.

Inventors

  • MA JIE
  • CHEN YUQI

Assignees

  • 欣旺达动力科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250528

Claims (10)

  1. 1. A battery pack having a first direction (X), comprising: the box body (1), the box body (1) is provided with a containing cavity (16), and one end of the box body (1) in the first direction (X) is provided with an opening (17) communicated with the containing cavity (16); The cover body (2) is detachably connected to the box body (1) and covers the opening (17); The sliding rail (3) is arranged in the accommodating cavity (16), and the sliding rail (3) is connected with the box body (1); A fixing member (4), the fixing member (4) comprising a fixing bracket (41), the fixing bracket (41) comprising a sliding portion (411) and a connecting portion (412), the sliding portion (411) being slidably connected to the sliding rail (3) and being movable in the first direction (X), the connecting portion (412) being connected to an end of the sliding portion (411) remote from the sliding rail (3); The battery pack (5), the battery pack (5) includes battery cell (51), battery cell (51) are located hold in chamber (16), battery cell (51) include casing (511) and explosion-proof valve (512), casing (511) connect in connecting portion (412) deviate from one side of slide rail (3), explosion-proof valve (512) are located casing (511) are close to one end of slide rail (3), connecting portion (412) run through be provided with bleeder (41211) that explosion-proof valve (512) correspond.
  2. 2. The battery pack according to claim 1, wherein a mounting groove (4125) is concavely provided in an end of the connecting portion (412) facing the housing (511) in a direction away from the housing (511), the housing (511) is partially engaged with the mounting groove (4125), and the air release hole (41211) is communicated with the mounting groove (4125).
  3. 3. The battery pack according to claim 2, further comprising a second direction (Y) perpendicular to the first direction (X), wherein the connecting portion (412) comprises a first bottom plate (4121), a first side plate (4122), a second side plate (4123) and a first end plate (4124), wherein the unit cells (51) are disposed on a side of the first bottom plate (4121) facing away from the slide rail (3), wherein the first bottom plate (4121) is provided with the vent hole (41211), wherein the first side plate (4122) is connected to an end of the first bottom plate (4121) in the second direction (Y), wherein the second side plate (4123) is connected to an end of the first bottom plate (4121) in the second direction (Y) away from the first side plate (4122) and is disposed opposite to the first side plate (4122), wherein the first end plate (4124) is connected to the first bottom plate (4121) in the first direction (X), the first side plate (4122), and the first side plate (4125) are mounted together.
  4. 4. The battery pack according to claim 1, wherein the fixing member (4) includes a plurality of the fixing brackets (41) aligned in the first direction (X), the battery pack (5) includes a plurality of the unit cells (51) aligned in the first direction (X), and one of the unit cells (51) is correspondingly connected to one of the fixing brackets (41).
  5. 5. The battery pack according to claim 4, further comprising a second direction (Y) and a third direction (Z), wherein the first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other, and the fixing bracket (41) further comprises a baffle (413), wherein the baffle (413) is connected to an end of the connecting portion (412) away from the unit cell (51) in the third direction (Z) and is located at a side of the vent hole (41211) in the first direction (X).
  6. 6. The battery pack according to claim 5, wherein the baffle plate (413) is provided with a through hole (4134) penetrating in the first direction (X), and the through hole (4134) is located at one side of the vent hole (41211) in the second direction (Y).
  7. 7. The battery pack according to claim 5, wherein the baffle plate (413) includes a bottom wall (4131), a straight wall (4132) and an inclined wall (4133), the bottom wall (4131) is located on a side of the connection portion (412) facing away from the unit battery (51), both ends of the straight wall (4132) in the third direction (Z) are respectively connected to the bottom wall (4131) and the connection portion (412), and one end of the inclined wall (4133) in the third direction (Z) is connected to the bottom wall (4131), and the other end thereof extends facing away from the vent hole (41211) and is connected to the connection portion (412).
  8. 8. The battery pack according to claim 1, further comprising a second direction (Y) and a third direction (Z), wherein the first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other, the slide rail (3) comprises a first slide plate (31) and a second slide plate (32), one end of the first slide plate (31) in the third direction (Z) is connected to the case (1), the second slide plate (32) is connected to one end of the first slide plate (31) in the third direction (Z) away from the case (1), and the case (1), the first slide plate (31) and the second slide plate (32) together enclose a first slide groove (33); The sliding part (411) comprises a third sliding plate (4111) and a fourth sliding plate (4112), one end of the third sliding plate (4111) is connected to the connecting part (412), the fourth sliding plate (4112) is connected to one end, far away from the connecting part (412), of the third sliding plate (4111), the connecting part (412), the fourth sliding plate (4112) and the third sliding plate (4111) jointly enclose a second sliding groove (4113), the fourth sliding plate (4112) is embedded into the first sliding groove (33), and the second sliding plate (32) is embedded into the second sliding groove (4113).
  9. 9. The battery pack according to claim 1, further comprising a second direction (Y) perpendicular to the first direction (X), wherein the case (1) includes a second bottom plate (11), a third side plate (12), a fourth side plate (13), a second end plate (14), and a top cover (15), the slide rail (3) is connected to the second bottom plate (11), the third side plate (12) is connected to one end of the second bottom plate (11) in the second direction (Y), the fourth side plate (13) is connected to one end of the second bottom plate (11) in the second direction (Y) which is located opposite to the third side plate (12), the second end plate (14) is connected to one end of the second bottom plate (11) in the first direction (X) which is located opposite to the cover (2), the third side plate (12), the fourth side plate (13) and the fourth side plate (14) are connected to the second end plate (15), the third side plate (12) is located opposite to the second end plate (12), the fourth side plate (14) and the top cover (15) are located opposite to the second bottom plate (12), the second end plate (14) and the top cover (15) jointly enclose the accommodating cavity (16).
  10. 10. An electrical device comprising a battery pack according to any one of claims 1-9.

Description

Battery pack and power utilization device Technical Field The utility model relates to the technical field of batteries, in particular to a battery pack and an electric device. Background Along with the gradual increase of the energy density of the battery pack, CTP (cel l to pack) is applied as a technology for improving the energy density of the battery pack, and CTP (cel l to pack) technology simplifies the manufacturing process of the battery core, the module and the whole pack into the battery core, the whole pack, the middle process of the module is omitted, and the weight of the whole pack can be greatly reduced, so that the energy density is improved. However, in the prior art, single batteries in the CTP battery pack are fixed in the battery pack in a glue bonding mode, and due to the high bonding strength of the glue, the single batteries are difficult to maintain when damaged and possibly need to be replaced in a whole pack, so that great difficulty is brought to maintenance of the battery pack and disassembly and recovery of the battery cells after service life is finished, and the cost of the battery pack is increased to a certain extent. Disclosure of utility model The utility model aims to at least solve one of the technical problems in the prior art, and aims to provide a battery pack and an electric device with the battery pack, wherein the battery pack is convenient to maintain, disassemble and recycle, and is beneficial to reducing resource waste and cost. In order to achieve the above purpose, the utility model provides a battery pack which comprises a box body, a cover body, a sliding rail, a fixing piece and a battery pack, wherein the box body is provided with a containing cavity, one end of the box body in the first direction is provided with an opening communicated with the containing cavity, the cover body is detachably connected with the box body and covers the opening, the sliding rail is arranged in the containing cavity, the sliding rail is connected with the box body, the fixing piece comprises a fixing support, the fixing support comprises a sliding part and a connecting part, the sliding part is slidably connected with the sliding rail and can move along the first direction, the connecting part is connected with one end of the sliding part far away from the sliding rail, the battery pack comprises a single battery, the single battery is arranged in the containing cavity and comprises a shell and an explosion-proof valve, the shell is connected with one side of the connecting part far away from the sliding rail, the explosion-proof valve is arranged at one end of the shell, which is close to the sliding rail, and the connecting part is provided with an explosion-proof vent corresponding to the through-vent. In some embodiments, the battery pack further has a second direction perpendicular to the first direction, the connecting portion is concavely provided with a mounting groove toward one end of the housing toward a direction away from the housing, the housing portion is engaged with the mounting groove, and the air release hole communicates with the mounting groove. In some embodiments, the connecting portion includes a first bottom plate, a first side plate, a second side plate and a first end plate, the unit cell is located the first bottom plate deviates from one side of slide rail, the first bottom plate has been seted up the hole that leaks, the first side plate connect in the first bottom plate is in the one end of second direction, the second side plate connect in the first bottom plate be in the second direction keep away from the one end of first side plate and with the first side plate sets up relatively, the first end plate connect in the first bottom plate be in the one end of first direction, the first bottom plate first side plate, the second side plate with first end plate encloses jointly the mounting groove. In some embodiments, the fixing member includes a plurality of fixing brackets aligned in the first direction, and the battery pack includes a plurality of unit cells aligned in the first direction, one unit cell being correspondingly connected to one fixing bracket. In some embodiments, the battery pack further has a third direction, the first direction, the second direction and the third direction are perpendicular to each other, and the fixing support further includes a baffle plate connected to one end of the connecting portion, which is far away from the unit battery in the third direction, and located at one side of the air leakage hole in the first direction. In some embodiments, the baffle plate is provided with a through hole penetrating along the first direction, and the through hole is positioned at one side of the air leakage hole along the second direction. In some embodiments, the baffle includes a bottom wall, a straight wall and an inclined wall, the bottom wall is located at a side of the connecting portion facing away from the unit cel