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CN-121983763-A - Battery priming device

CN121983763ACN 121983763 ACN121983763 ACN 121983763ACN-121983763-A

Abstract

The invention relates to the technical field of battery manufacturing, and discloses a battery liquid injection device which comprises a rotary table, a liquid injection needle and a bearing seat, wherein the rotary table is provided with a rotary axis and a first direction parallel to the rotary axis, the rotary table rotates around the rotary axis along the circumferential direction of the rotary axis, and one end of the rotary table along the first direction is provided with a first surface. The bearing seat is arranged on the first surface of the turntable, and is provided with a bearing station which is suitable for bearing the battery to be injected. A filling needle moves back and forth along the first direction, the filling needle is suitable for filling electrolyte into the battery to be filled at the bearing station, the invention can solve the problems of complex layout, long movement path and the like of the traditional equipment, and the problems that most structures have higher requirements on the space of the field and are not beneficial to compact arrangement of the production line.

Inventors

  • ZHU JIANGUO
  • LV XIN
  • HUANG BINBIN
  • BU FANG
  • LIU JINCHENG

Assignees

  • 惠州亿纬锂能股份有限公司

Dates

Publication Date
20260505
Application Date
20260317

Claims (10)

  1. 1. A battery priming device, comprising: -a turntable (1) having a rotation axis and a first direction (X) parallel to said rotation axis, said turntable (1) rotating around said rotation axis in its own circumferential direction, one end of said turntable (1) in said first direction (X) having a first surface (101); The bearing seat (2) is arranged on the first surface (101) of the rotary table (1), a bearing station (201) is arranged on the bearing seat (2), and the bearing station (201) is suitable for bearing a battery (3) to be injected; -a filling needle (4) reciprocating along said first direction (X), said filling needle (4) being adapted to fill said battery (3) to be filled with electrolyte located at said carrying station (201).
  2. 2. Battery priming device according to claim 1, characterized in that the carrying seats (2) are provided in plurality, the carrying seats (2) being distributed at intervals on the first surface (101) of the turntable (1) along the circumference of the turntable (1).
  3. 3. Battery priming device according to claim 2, characterized in that the carrier (2) is rotatable in its own circumferential direction, the carrier (2) being provided with a plurality of said carrier stations (201) spaced apart in its circumferential direction.
  4. 4. The battery priming device of claim 2, further comprising: -a vacuum hood (5) moving along the first direction (X) between a first position and a second position, the vacuum hood (5) having an opening (501), the vacuum hood (5) in the first position being in abutment with the first surface (101) of the turntable (1) and the carrier (2) being located in the inner cavity of the vacuum hood (5), the vacuum hood (5) in the second position being in abutment with the edge of the opening (501) being separated from the first surface (101) of the turntable (1); the liquid injection needles (4) and the vacuum covers (5) are arranged in a plurality, and the liquid injection needles (4) and the vacuum covers (5) are alternately distributed along the circumference of the rotary table (1).
  5. 5. Battery priming device according to claim 4, characterized in that a seal (6) is arranged between the turntable (1) and the carrier (2), the seal (6) being connected to the first surface (101) of the turntable (1); The vacuum cover (5) is in the state of the first position, the edge of the opening (501) is abutted against the sealing piece (6), and the vacuum cover (5) is in the state of the second position, the edge of the opening (501) is separated from the sealing piece (6).
  6. 6. Battery priming device according to claim 5, characterized in that the sealing member (6) is provided with an annular groove (601) along the first direction (X) away from the turntable (1), the edge of the opening (501) being adapted to the annular groove (601).
  7. 7. Battery priming device according to claim 6, characterized in that the turntable (1) is provided with a base (7) on the side of the turntable (1) remote from the carrier (2) in the first direction (X), the base (7) being provided with a first drive assembly (8), the first drive assembly (8) having a first drive end, the turntable (1) having a second surface (102) opposite the first surface (101) in the first direction (X), the first drive end being connected to the second surface (102) of the turntable (1); The second surface (102) of carousel (1) is provided with second drive assembly (9), second drive assembly (9) have the second drive end, be provided with first through-hole on carousel (1), sealing member (6) are provided with the second through-hole, the second drive end runs through in proper order first through-hole with the second through-hole with it links to each other to bear seat (2).
  8. 8. Battery priming device according to claim 7, characterized in that a third drive assembly (10) and a fourth drive assembly (11) are provided on the base (7), the third drive assembly (10) having a third drive end connected to the vacuum cap (5) adapted to drive the vacuum cap (5) to slide along the first direction (X) between a first position and a second position, the fourth drive assembly (11) having a fourth drive end connected to the priming needle (4); The liquid injection needle (4) is provided with a liquid injection end, the fourth driving end is suitable for driving the liquid injection needle (4) to move between a third position and a fourth position along the first direction (X), the liquid injection needle (4) is in the state of the third position, the liquid injection end of the liquid injection needle (4) is positioned in the battery (3) to be injected, and the liquid injection needle (4) is in the state of the fourth position, and the liquid injection end of the liquid injection needle (4) is separated from the battery (3) to be injected.
  9. 9. The battery priming device of claim 4, further comprising: the infusion pump (12) is provided with an infusion end, the infusion end of the infusion pump (12) is communicated with the infusion needle (4), the vacuum pump (13) is provided with an output end, and the output end of the vacuum pump (13) is communicated with the inner cavity of the vacuum cover (5).
  10. 10. The battery priming device of claim 3, further comprising: The feeding assembly (14) is arranged on one side of the rotary table (1) and is suitable for supplying the battery (3) to be injected; The manipulator (15) is provided with a plurality of, and the manipulator (15) is suitable for placing the battery (3) to be injected on the feeding assembly (14) on the bearing station (201) of the bearing seat (2).

Description

Battery priming device Technical Field The invention relates to the technical field of battery manufacturing, in particular to a battery electrolyte injection device. Background In the production process of the cylindrical battery, liquid injection is one of key procedures, and the purpose of the liquid injection is to accurately inject the electrolyte into the battery shell, so that the electrochemical performance and consistency of the battery are directly affected. With the continuous increase of the demands of the fields of new energy automobiles, energy storage systems and the like on lithium batteries, the efficiency, the precision and the automation level of the liquid injection process become important factors for restricting the capacity and the quality of the batteries. At present, a linear transmission structure is adopted in the liquid injection mode of the cylindrical battery, for example, intermittent motion is realized by matching a multi-layer liquid injection clamp with a square track, or batch liquid injection is carried out by adopting a piston type liquid injector at a fixed station. Although automation is realized to a certain extent in the modes, the problems of complex equipment layout, long movement path and the like still exist, and most structures have high requirements on the space of the field, so that the compact arrangement of the production line is not facilitated. Disclosure of Invention The invention provides a battery priming device which aims to solve the problems of complex layout, long movement path and the like of the conventional equipment, and the problems that most structures have high requirements on field space and are not beneficial to compact arrangement of production lines. The invention provides a battery priming device, comprising: a turntable having a rotation axis and a first direction parallel to the rotation axis, the turntable rotating around the rotation axis in its own circumferential direction, one end of the turntable in the first direction having a first surface; The bearing seat is arranged on the first surface of the turntable, and is provided with a bearing station which is suitable for bearing a battery to be injected; and the liquid injection needle moves back and forth along the first direction, and the liquid injection needle is suitable for injecting electrolyte into the to-be-injected battery positioned at the bearing station. The rotary table type liquid filling device has the beneficial effects that the rotary table type liquid filling device replaces the traditional linear layout, so that continuous and intermittent transfer and fixed-point liquid filling of a battery to be filled can be realized, the whole length of the device is shortened, and the space utilization rate of a production line is improved. Meanwhile, the liquid injection needle reciprocates along the vertical direction to inject liquid, so that the structure is simple, the action is reliable, and the liquid injection precision and efficiency are improved. In an alternative embodiment, a plurality of bearing seats are provided, and a plurality of bearing seats are distributed on the first surface of the turntable at intervals along the circumferential direction of the turntable. The multi-station liquid injection device has the beneficial effects that a plurality of bearing seats are arranged on the turntable, so that the simultaneous bearing and transferring of a plurality of batteries can be realized, multi-station parallel operation is supported, and the processing amount and the production efficiency of a liquid injection process are effectively improved. In an alternative embodiment, the carrying seat can rotate along the circumferential direction of the carrying seat, and a plurality of carrying stations are distributed on the carrying seat at intervals along the circumferential direction of the carrying seat. The rotary table has the beneficial effects that the bearing seat can rotate and is provided with a plurality of bearing stations, so that a single bearing seat can sequentially perform liquid injection or waiting operation on a plurality of batteries, and the space utilization rate of the rotary table and the processing capacity in unit time are further improved. In an alternative embodiment, the method further comprises: a vacuum cover moving between a first position and a second position along the first direction, the vacuum cover having an opening, the opening being in abutment with the first surface of the turntable in the first position, and the load bearing seat being located in the cavity of the vacuum cover, the edge of the opening being separated from the first surface of the turntable in the second position; The liquid injection needles and the vacuum covers are arranged in a plurality, and the liquid injection needles and the vacuum covers are alternately distributed along the circumference of the turntable. The electrolyte quick-infiltration device