袋密封装置
By using a Peltier element in the bag sealing device to pre-cool the target cooling area of the bag, the problem of battery cell defects caused by heat conduction during the sealing process is solved, and a safe seal of the bag is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LG ENERGY SOLUTION LTD
- Filing Date
- 2024-08-05
- Publication Date
- 2026-07-17
AI Technical Summary
During the bag sealing process, the heat from the sealing component is transferred to the surrounding area of the sealing target area, which may cause temporary adhesion to the inner peripheral area adjacent to the electrode assembly, resulting in battery cell defects.
A bag sealing device is used, including a sealing part and a cooling part. The target cooling area of the bag is pre-cooled by a Peltier element to prevent heat from being conducted to the inner peripheral area before sealing.
This prevents temporary adhesion to the inner periphery during the sealing process, protecting the electrode assembly and avoiding damage to the battery cell.
Smart Images
Figure CN224510442U_ABST
Abstract
Claims
1. A bag sealing device, characterized in that, The bag sealing device includes: A sealing portion, the sealing portion being configured to seal a sealing target area of any one of a plurality of edge portions of a bag containing an electrode assembly; A cooling section, configured to cool a target cooling area of the bag, the target cooling area being located between the internal space of the bag housing the electrode assembly and the target sealing area; and The control unit is configured to execute a sealing mode that heats the sealing target area by means of the sealing unit after completing a pre-cooling mode in which the cooling target area is cooled by means of the cooling unit.
2. The bag sealing device according to claim 1, characterized in that, The cooling target area of the bag extends from the sealing target area toward the interior space of the bag.
3. The bag sealing device according to claim 1, characterized in that, The cooling section includes a first cooling member, which is arranged parallel to the length direction of any edge portion of the bag and configured to contact the target cooling area.
4. The bag sealing device according to claim 3, characterized in that, The first cooling component includes a Peltier element.
5. The bag sealing device according to claim 3, characterized in that, The first cooling component has a strip shape with a length longer than the length of the edge portion.
6. The bag sealing device according to claim 3, characterized in that, The cooling section further includes a second cooling component arranged symmetrically with respect to the first cooling component, based on the target cooling area. The first cooling component and the second cooling component are configured to move in directions that are close to or far from each other.
7. The bag sealing device according to claim 1, characterized in that, The sealing part includes a first sealing member and a second sealing member, which are symmetrically arranged with respect to the sealing target area and are configured to heat the sealing target area from the top and bottom in the sealing mode.
8. The bag sealing device according to claim 7, characterized in that, The first sealing member and the second sealing member are configured to seal either edge portion of the bag in the form of a line with a predetermined width.
9. The bag sealing device according to claim 7, characterized in that, The first sealing member and the second sealing member are arranged separately from the bag in the pre-cooling mode of the cooling section.
10. The bag sealing device according to claim 7, characterized in that, The first sealing member and the second sealing member have a strip shape, the length of which is longer than the length of the edge portion of the bag, and the first sealing member and the second sealing member are configured to move in directions toward or away from each other.
11. The bag sealing device according to claim 1, characterized in that, The control unit is configured to repeatedly execute the sealing mode after the pre-cooling mode for each edge portion of the bag.