Module pressurization device and pressurization method therefor

Patent metadata

Field	Value
Publication number	US-12512501-B2
Application number	US-202519233905-A
Country	US
Kind code	B2
Filing date	Jun 10, 2025
Priority date	Jan 29, 2024
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

A module pressurization device includes a conveying line, a pressurization apparatus, and a control apparatus. The conveying line passes through a pressurization station and is configured to convey a battery module. The pressurization apparatus is arranged corresponding to the pressurization station and includes a jacking and supporting mechanism and a pressurization mechanism which are opposite in a first direction. The jacking and supporting mechanism is provided with a plurality of jacking and supporting portions configured to move in the first direction, arranged in a second direction, and configured to jack and support the heat dissipation plate. The pressurization mechanism is configured to compress the battery module. The control apparatus is electrically connected to the jacking and supporting mechanism and the pressurization mechanism so as to control the jacking and supporting mechanism and the pressurization mechanism to act.

First claim

What is claimed is:

1 . A module pressurization device, being provided with a pressurization station for carrying out pressure maintaining on a battery module of which the bottom is adhered with a heat dissipation plate, the module pressurization device comprising:
a conveying line which passes through the pressurization station and is configured to convey the battery module; a pressurization apparatus arranged corresponding to the pressurization station, the pressurization apparatus comprising a jacking and supporting mechanism and a pressurization mechanism which are opposite one another in a first direction, wherein the jacking and supporting mechanism is provided with a plurality of jacking and supporting portions which can move in the first direction, the plurality of jacking and supporting portions are arranged in a second direction and are configured to jack and support the heat dissipation plate so as to separate the battery module from the conveying line, and the pressurization mechanism is configured to compress the battery module; and a control apparatus which is electrically connected to the jacking and supporting mechanism and the pressurization mechanism so as to control the jacking and supporting mechanism and the pressurization mechanism to act, wherein the second direction is perpendicular to the first direction.

2 . The module pressurization device according to claim 1 , wherein:
the pressurization mechanism comprises a plurality of pressurization assemblies, and each pressurization assembly is arranged corresponding to at least one row of battery cells of the battery module and comprises:
a driving structure which is provided with a driving portion that can move in the first direction; and
a pressing plate structure which is arranged on the driving portion and configured to compress to reach the at least one row of battery cells when the driving portion moves towards the jacking and supporting mechanism; and
the control apparatus is electrically connected to a plurality of driving structures.

3 . The module pressurization device according to claim 2 , wherein in a moving stroke of the driving portions, the pressing plate structures can perform compressing to reach two rows of battery cell modules in the battery module.

4 . The module pressurization device according to claim 2 , wherein:
the driving structures comprise a plurality of cylinders which are arranged in a length direction of the pressing plate structures, and piston rods of the cylinders are connected to the pressing plate structures; and the driving portions comprise the piston rods.

5 . The module pressurization device according to claim 2 , wherein the pressing plate structures comprise insulated pressing plates, and the insulated pressing plates are configured to compress the battery cells.

6 . The module pressurization device according to claim 5 , wherein the pressing plate structures further comprise connecting plates which are arranged on the driving portions, and the insulated pressing plates are detachably arranged on the connecting plates.

7 . The module pressurization device according to claim 5 , wherein a plurality of compressing protrusions are formed on the insulated pressing plates and configured to perform compressing to reach a plurality of terminal posts of the at least one row of battery cells.

8 . The module pressurization device according to claim 2 , further comprising:
a fool-proof structure, comprising:
two matching portions, one being arranged on the pressing plate structures while the other one being fixed relative to a position of the pressurization station, wherein the two matching portions can be oppositely arranged within a moving stroke of the pressing plate structures away from the jacking and supporting mechanism; and
a connecting portion which is configured to connect the two matching portions when the two matching portions are oppositely arranged so as to limit the pressing plate structures to move towards the jacking and supporting mechanism.

9 . The module pressurization device according to claim 8 , wherein the fool-proof structure further comprises:
a placement portion which is fixed relative to the position of the pressurization station, the connecting portion also being able to be selectively placed on the placement portion; and an in-place detection apparatus which is arranged corresponding to the placement portion and is electrically connected to the control apparatus to generate a warning signal after the connecting portion is detected.

10 . The module pressurization device according to claim 2 , further comprising:
a fixing portion, fixed relative to a position of the pressurization station; and limiting portions arranged on the pressing plate structures and opposite to the fixing portion in the first direction, wherein the limiting portions are configured to prop against the fixing portion when the pressing plate structures move to a position in which the at least one row of battery cells are to be compressed.

11 . The module pressurization device according to claim 10 , wherein:
shaft sleeves are arranged on the fixing portion and are provided with holes in the first direction; guide shafts are arranged on the pressing plate structures and extend in the first direction, and the guide shafts penetrate through the shaft sleeves; and mounting structures are formed at tail ends of the guide shafts deviating from the pressing plate structures; and the limiting portions are arranged on the mounting structures.

12 . The module pressurization device according to claim 10 , wherein:
the limiting portions comprise limiting bolts which are connected to the pressing plate structures by means of thread pairs; and in a screwing stroke of the limiting bolts, positions of the limiting bolts in the first direction are adjustable.

13 . The module pressurization device according to claim 2 , further comprising:
two arriving detection apparatuses arranged at an intervals in the first direction and electrically connected to the control apparatus; wherein the pressing plate structures are further provided with sensing portions configured to sequentially arrive at the positions of the two arriving detection apparatuses in the moving stroke of the pressing plate structures, and the arriving detection apparatuses are configured to identify the sensing portions and feed back arriving signals to the control apparatus.

14 . The module pressurization device according to claim 1 , wherein a tray configured to convey the battery module is arranged on the conveying line, the tray comprises a bottom end and a top end which are opposite in the first direction, and a plurality of avoiding channels for communicating the bottom end with the top end, and the battery module can be replaced on the top end; and
when the tray is located at the pressurization station, the jacking and supporting portions can jack and support the battery module through the corresponding avoiding channels within the moving stroke.

15 . The module pressurization device according to claim 14 , further comprising a tray positioning apparatus arranged corresponding to the pressurization station, wherein the tray positioning apparatus is configured to position the tray.

16 . The module pressurization device according to claim 1 , wherein a movable blocking structure is further arranged on the conveying line, and the movable blocking structure is configured to block the battery module at the pressurization station.

17 . The module pressurization device

Assignees

• Contemporary Amperex Technology Co Ltd

Inventors

• Wang Jifeng
• Bai Guoxi
• Jing Anwei

Classifications

• B30B15/26

  Program-control arrangements · CPC title

• H01M10/0481

  Compression means other than compression means for stacks of electrodes and separators · CPC title

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title