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CN-119965437-B - High-barrier lithium battery outer structure

CN119965437BCN 119965437 BCN119965437 BCN 119965437BCN-119965437-B

Abstract

The invention provides an outer structure of a high-barrier lithium battery, which belongs to the technical field of batteries and comprises an assembly table, a plurality of battery bodies, a barrier assembly unit and a connecting unit, wherein the barrier assembly unit comprises a cover box and an inner box, the plurality of battery bodies are fixedly connected in the inner box, the cover box covers the side of the inner box, a containing chamber is arranged between the inner box and the cover box, a plurality of through holes I are reserved in the inner box, and a plurality of heat conducting plates are arranged in the inner box. The invention solves the problems that the external blocking box body of the battery is required to be locked by using a plurality of fasteners during the assembly, so that the assembly, the disassembly, the overhaul and other actions are more complicated, and most of the external blocking box body is screwed on and off one by one, so that the external blocking box body is not beneficial to the assembly of the box body, and the blocking property is enhanced and the complicated operation is realized.

Inventors

  • LIU JIHU
  • LIU JIALE

Assignees

  • 南京华武自动化设备有限公司

Dates

Publication Date
20260505
Application Date
20250205

Claims (10)

  1. 1. The utility model provides a high barrier property lithium cell outer structure, contains assembly bench (12) and a plurality of battery body (13), its characterized in that still contains separation assembly unit and linking unit, separation assembly unit contains lid box (14) and interior box (15), a plurality of battery body (13) all link firmly in interior box (15), lid box (14) lid is in the avris of interior box (15), install the holding room between interior box (15) and lid box (14), reserve a plurality of through-hole one (16) on interior box (15), install a plurality of heat-conducting plate (17) in interior box (15), a plurality of heat-conducting plate (17) are each visited interior box (15) through a plurality of through-hole one (16), reserve a plurality of through-hole two (18) on lid box (14), the front and back both sides of lid box (14) all have a plurality of knot to link mouthful (19), a plurality of knot mouthful (19) communicate with a plurality of through-hole two (18) respectively, detain mouthful (19) all have been set up a plurality of heat-conducting plate(s) in a plurality of through-hole two (120) are all connected in a plurality of expansion plates (121) and are all connected in a plurality of expansion plates (121) respectively, a plurality of expansion plates (121) are all connected in a plurality of expansion plates (121), the plurality of wedging sheets (122) are respectively attached to the plurality of stuffing plates (121), a plurality of bearing seats (123) are reserved on the plurality of wedging sheets (122), an assembly chamber (124) and a ring-shaped channel (125) are arranged in the bearing seats (123), and the assembly chamber (124) and the ring-shaped channel (125) are communicated with each other; The connecting unit comprises a first tray body (126) and 4 traction strips (127), the first tray body (126) and the 4 traction strips (127) are all screwed in a ring-shaped channel (125), the 4 traction strips (127) are all fixedly connected with a second tray body (128), the 4 tray bodies (128) are all meshed with the first tray body (126), a driving unit is arranged in the assembling chamber (124) and used for driving the first tray body (126) to rotate, a plugging hole (129) matched with the bearing seat (123) is arranged in the assembling table (12), an edge chamber (130) is arranged in the plugging hole (129), and the edge chamber (130) is used for rotating detection of the 4 traction strips (127), so that the aim of limiting the bearing seat (123) in the plugging hole (129) is achieved.
  2. 2. The high-barrier lithium battery outer structure according to claim 1, wherein the driving unit comprises an expansion rod (131), the lower part of the expansion rod (131) is fixedly connected with the upper part of the first tray body (126), the expansion rod (131) is screwed in the assembly chamber (124), the upper part of the expansion rod (131) is fixedly connected with a linkage rod (132), the linkage rod (132) is positioned in the assembly chamber (124), a displacement table (133) is movably connected in the assembly chamber (124), the displacement table (133) is fixedly connected with a spiral beryllium copper wire (134), and one end, which is farther from the displacement table (133), of the spiral beryllium copper wire (134) is fixedly connected in the assembly chamber (124), and the linkage rod (132) is connected with the displacement table (133).
  3. 3. The external structure of a lithium battery with high barrier property as set forth in claim 2, wherein a waist hole (135) and a through hole (136) are reserved on the linkage rod (132), the waist hole (135) and the through hole (136) are communicated with each other, a connecting rod (137) is arranged in the waist hole (135), the displacement table (133) is plugged into the through hole (136), a connecting hole (138) is reserved on the displacement table (133), and the connecting rod (137) is fixedly connected in the connecting hole (138).
  4. 4. The lithium battery outer structure according to claim 3, wherein the displacement table (133) is provided with a pointing hole (139), the pointing hole (139) is movably connected with a pointing rod (140), and the pointing rod (140) is fixedly connected in the assembly chamber (124).
  5. 5. The lithium battery outer structure according to claim 4, wherein the upper portion of the inner wall of the cover case (14) is tapered from the central region toward the edge to form a slope structure.
  6. 6. The external structure of a high-barrier lithium battery according to claim 5, wherein 4 protruding blocks (141) are arranged on the cover box (14), connecting ports are reserved on the 4 protruding blocks (141), fasteners (142) are arranged on the connecting ports, 4 wire connecting platforms are fixedly connected to the inner box (15), and the 4 fasteners (142) are respectively connected into the 4 wire connecting platforms in a wire mode.
  7. 7. The external structure of a high-barrier lithium battery according to claim 6, wherein a plurality of connecting channels (143) are reserved on the wedging sheets (122), protruding rods (144) are arranged on the plugging plates (121), and the protruding rods (144) are respectively matched with the connecting channels (143).
  8. 8. The lithium battery outer structure according to claim 7, wherein the displacement table (133) is provided with a traction piece (145).
  9. 9. The lithium battery outer structure according to claim 8, wherein a relief groove (146) is reserved on the displacement table (133), and the relief groove (146) enables the displacement action of the linkage rod (132) and the displacement table (133) to have a sufficient active area.
  10. 10. The external structure of a high-barrier lithium battery according to claim 9, wherein the receiving base (123) is provided with an arc edge (147).

Description

High-barrier lithium battery outer structure Technical Field The invention belongs to the technical field of batteries, and particularly relates to an external structure of a high-barrier lithium battery. Background The lithium battery is a primary battery using lithium metal or lithium alloy as a negative electrode material and using a nonaqueous electrolyte solution, and the lithium battery is subjected to mechanical abuse such as collision, extrusion, puncture and the like by external force in the use process, so that the internal of the lithium battery can generate structural deformation, internal short circuit, electrolyte leakage and other faults to cause serious consequences such as thermal runaway, combustion, explosion and the like, and therefore, the assembly box body or box body is usually assembled at the peripheral side of the lithium battery to strengthen the barrier with the surrounding conditions to ensure the lithium battery. However, the external blocking box body of the lithium battery is required to be locked by using a plurality of fasteners during the assembly, so that the actions of assembly, disassembly, overhaul and the like are more complicated, and most of the external blocking box body is screwed on and off one by one, so that the assembly of the box body is not facilitated, the blocking property is enhanced, and the external structure of the lithium battery with high blocking property is more complicated. Disclosure of Invention The invention provides an external structure of a high-barrier lithium battery, which aims to solve the problems that the external barrier box body of the battery is required to be locked by using a plurality of fasteners during the assembly, so that the assembly, disassembly, overhaul and other actions are complicated, and the operations of screwing on and unscrewing off one by one are mostly performed, so that the assembly of the box body is not facilitated, and the barrier property is enhanced, and meanwhile, the complicated problem is solved. The embodiment of the invention provides a high-barrier lithium battery outer structure, which comprises an assembly table, a plurality of battery bodies, a barrier assembly unit and a connecting unit, wherein the barrier assembly unit comprises a cover box and an inner box, the plurality of battery bodies are fixedly connected in the inner box, the cover box covers the side of the inner box, a containing chamber is arranged between the inner box and the cover box, a plurality of through holes I are reserved on the inner box, a plurality of heat conducting plates are arranged in the inner box, each heat conducting plate extends out of the inner box through the plurality of through holes I, a plurality of through holes II are reserved on the cover box, a plurality of fastening openings are reserved on both sides of the front surface and the back surface of the cover box, each fastening opening is communicated with the plurality of through holes II, an expansion plate is arranged in each fastening opening, a plurality of expansion plates are connected with a plug-in plate, each plug-in plate is fixedly connected in the plurality of through holes II, positive and negative sides of each heat conducting plate are fixedly connected with a wedge-in plate, each plug-in plate is fitted with each wedge-in each through hole II, each wedge-in plate is communicated with each bearing seat, and each wedge-shaped assembly seat is reserved; The connecting unit comprises a first tray body and 4 traction strips, wherein the first tray body and the 4 traction strips are all screwed in a ring-shaped ditch, the 4 traction strips are all fixedly connected with a second tray body, the 4 second tray bodies are all meshed with the first tray body, a driving unit is arranged in an assembly chamber and used for driving the first tray body to rotate, a plugging hole matched with the bearing seat is arranged in the assembly table, an edge chamber is arranged in the plugging hole, and the edge chamber is used for rotation detection of the 4 traction strips, so that the bearing seat is restrained and limited in the plugging hole. Further, the driving unit comprises an expansion rod, the lower part of the expansion rod is fixedly connected with the upper part of the first disc body, the expansion rod is connected in the assembly chamber in a screwed mode, the upper part of the expansion rod is fixedly connected with a linkage rod, the linkage rod is positioned in the assembly chamber, the assembly chamber is in variable connection with a displacement table, the displacement table is fixedly connected with a spiral beryllium copper wire, one end, farther from the displacement table, of the spiral beryllium copper wire is fixedly connected in the assembly chamber, and the linkage rod is connected with the displacement table. Further, a waist hole and a through hole are reserved on the linkage rod, the waist hole and the through hole are communica