512 Channel 5V 3A Battery Grading Machine for Cylindrical Cell Testing
1. Basic Composition of Equipment
The equipment is mainly composed of computer, communication interface and battery detection cabinet. The battery detection cabinet is composed of a clamp and a board body for placing the clamp, a constant current and constant voltage source, a storage control circuit, a sampling circuit, a single chip microcomputer and a control panel.
2. Main Performance of Equipment
1) Each equipment can conduct constant current and constant voltage charging and constant current discharge tests on 512 batteries that meet the voltage range.
2) The constant current constant voltage power supply of the invention patent is adopted, and the switching from constant current to constant voltage has no impact. It is especially suitable for the charging requirements of lithium-ion batteries.
3) The equipment adopts AVR single chip computer as the control center and cooperates with the peripheral sampling circuit. It can not only be controlled by the superior computer. When the computer is connected to work, it can save the complete charge discharge curve of all channels, but also be separated from the superior computer and operated through the control panel to complete constant current and constant voltage charging, constant current discharge test, sorting according to time, etc.
4) Each battery has an independent constant current and constant voltage source, which forms a loop and does not affect each other.
5) Detect the voltage of each battery in real time. When charging, charge with constant current first. When the battery voltage reaches the set value, turn the smooth to constant voltage charging. When the set time or current termination conditions are met, the charging ends. During constant current discharge, when the battery voltage is lower than the set value, the discharge ends and the corresponding battery indicator light is on.
6) It has the function of power down protection, and can continue to run after an incoming call.
7) The power tube adopts d880, which is suitable for batteries requiring low discharge voltage, such as lithium iron phosphate battery.
8) The upper computer can set 32 step parameters and 256 cycles, and each upper computer can be connected with 1 ~ 20 sets of single chip microcomputer systems (Less than 10 sets are recommended).
9) Supporting software functions.
The graphic operation interface is adopted to display the data such as voltage, current, time and capacity of each battery, and the corresponding working state and abnormal conditions are displayed in various colors;
Battery capacity indication of any section (Up to 100 sections);
Data points can be recorded according to the change conditions of voltage, current and time to form complete charge discharge curve data. The time interval of curve data points is ≤ 4 seconds;
Battery sorting function under various conditions (Capacity, time, open circuit voltage, discharge platform, etc.);
Automatically calculate constant current charging ratio, capacity loss, discharge efficiency, average voltage, median voltage and other data;
Operator authority setting and hierarchical operation;
It can display charge discharge curve and cycle diagram.
3. Technical Parameters
| Number of equipment channels |
512 channels (Full screen control) |
| Sampling inspection interval |
≤ 8s / week |
| Constant current range |
0.05 ~ 3000mA, resolution 1mA |
| Current measurement accuracy |
±0.1%FS |
| Accuracy of sampling current |
±0.1%FS |
| Voltage measurement range |
0 ~ 5V, resolution 1mV |
| Voltage measurement accuracy |
±0.1%FS |
| Charge and discharge voltage range |
Charging: 0 ~ 4.5V, discharging: 4.5 ~ 2V (The length of external wiring shall not exceed 2.5m) |
| Constant voltage setting range |
3 ~4.5V |
| Constant voltage setting accuracy |
±0.1%FS |
| Time frame |
0 ~ 30000 min / work step, accuracy: ± 0.1% |
| Heat dissipation mode |
Air cooling,updraft |
| Fixture form |
Cylindrical conventional clamp, manual polymer unclamping, tray type quick clamping cylinder, motor polymer unclamping. |
| Working ring source |
Temperature: 0 ~ 40 ºC, relative temperature ≤ 85% (No water vapor condensation) |
| Overall dimension |
Manual: 1430(L)*500(W)*1840(H)mm
Others: 1600(L)*550(W)*1840(H)mm |
| Working power supply |
Three phase four wire system, AC380V ± 10%, 50Hz |
| Full load power consumption |
≤11KW |
4. Main Configuration Requirements Of The System (Self Configured By The Customer)
1) Minimum configuration of computer system: Celeron dual core CPU or above, 4G or above memory, 500GB or above hard disk space, EGA / VGA color display, one CD-ROM, one mouse, above MicrosoftTM Windows XP operating system, and one available RS232 serial communication port. The computer system shall be configured by the user, and the number of computer systems shall be determined according to the actual needs.
2) The user is recommended to equip each computer with UPS power supply to prevent damage to the computer or data in case of power failure.
3) When the equipment is started, the instantaneous current is large. When the user configures the incoming power switch for the equipment, it should be considered that the action current of the power switch is not lower than the starting current of the equipment to avoid switch tripping.
5. General Equipment Configuration And Standards
1. Appearance color of the equipment: case: silver white, cabinet: silver white.
2. Chinese operation manual and software USB flash disk are attached.
3. Accessories attached to the equipment:
| NO. |
Name |
Quantity |
Submission Time |
| 1 |
Equipment delivery test report |
1 |
On delivery |
| 2 |
Equipment operation manual |
1 |
On delivery |
| 3 |
Packing list and product certificate |
1 |
On delivery |
| 4 |
Communication line |
1 |
On delivery |
Audited Supplier 
){kind=link}