Process automation system
Discussed is a a process automation system including: a cell transferor configured to transfer battery cells; a cell inspector configured to measure an open circuit voltage of each battery cell in units of a preset number of battery cells and to sort out qualified battery cells and defective battery cells; a frame transferor configured to transfer module frames of a battery module to insert the qualified battery cells; a cell discharger configured to load and discharge the defective battery cells; and a gripper configured to pick up one or more battery cells from any one device among the cell transferor, the cell inspector, the frame transferor, and the cell discharger, and transport the one or more battery cells to another device.
1 . A process automation system comprising:
a cell transferor configured to transfer battery cells;
a cell inspector configured to measure an open circuit voltage of each battery cell in units of a preset number of battery cells and to sort out qualified battery cells and defective battery cells, the cell inspector including a turntable comprising cell holders arranged at an edge of the turntable in a circumferential direction, the turntable being configured to be rotated clockwise or counter-clockwise;
a frame transferor configured to transfer module frames of a battery module to insert the qualified battery cells;
a cell discharger configured to load and discharge the defective battery cells; and
a gripper configured to pick up one or more battery cells from any one device among the cell transferor, the cell inspector, the frame transferor, and the cell discharger, and transport the one or more battery cells to another device.
2 . The process automation system of claim 1 , wherein each of the battery cells comprises a QR code, and
wherein the cell inspector is configured to scan the QR code and transmit an open circuit voltage value of each battery cell to a server.
3 . The process automation system of claim 2 , wherein the cell inspector comprises:
a voltage measuring device configured to measure the open circuit voltage of each battery cell; and
a QR code scanner to scan the QR code of each battery cell.
4 . The process automation system of claim 3 ,
wherein the voltage measuring device and the QR code Scanner are arranged opposite to each other with the turntable therebetween.
5 . The process automation system of claim 4 , wherein the battery cells comprise cylindrical battery cells, and
wherein the cell inspector further comprises a cell inverter arranged above one side edge of the turntable and configured to invert, up and down, one or more battery cells inserted into the cell holders.
6 . The process automation system of claim 5 , wherein the cell inverter comprises:
a clamp configured to hold at least one of the battery cells inserted into the cell holders;
a rotator configured to rotate the clamp by ±180 degrees; and
a moving block connected to the rotator and configured to be movable in a vertical direction.
7 . The process automation system of claim 5 , wherein four cell holders are arranged on the turntable in a square composition, and the process automation system is configured such that, as the turntable is rotated, measurement of voltages of the battery cells respectively mounted in the cell holders, scanning of a QR code of the battery cells, vertical inversion of the battery cells are performed.
8 . The process automation system of claim 4 , wherein the turntable comprises holes corresponding to the battery cells respectively received in each cell holder.
9 . The process automation system of claim 8 , wherein the voltage measuring device includes upper measuring pins to contact a first side of the battery cells, respectively, and lower measuring pins to penetrate through the holes respectively to contact a second side of the battery cells.
10 . The process automation system of claim 1 , wherein the frame transferor comprises a first frame transferor and a second frame transferor extending and arranged in parallel with each other, and
wherein the cell inspector is arranged between the first frame transferor and the second frame transferor.
11 . The process automation system of claim 10 , wherein the cell inspector comprises a controller configured to determine battery cells having the open circuit voltage of a value falling within a preset first set range, as first qualified battery cells, and determine battery cells having the open circuit voltage of a value falling within a preset second set range, as second qualified battery cells.
12 . The process automation system of claim 11 , further comprising a temporary loader configured to temporarily load the first qualified battery cells or the second qualified battery cells prior to transfer to the first frame transferor or the second frame transferor.
13 . The process automation system of claim 11 , wherein the controller is further configured to control the gripper such that the first qualified battery cells are supplied to the first frame transferor and the second qualified battery cells are supplied to the second frame transferor.
14 . The process automation system of claim 10 , wherein the cell discharger is arranged between the first frame transferor and the second frame transferor.
15 . The process automation system of claim 1 , wherein the cell discharger comprises discharge trays provided to load the defective battery cells and a conveyor for moving the discharge trays.
16 . The process automation system of claim 1 , wherein the process automation system grades the battery cells and performs an assembly operation of the battery module by a single facility to improve process efficiency and logistics transportation.