Design scheme of intelligent battery for robots

The supply of robots is on the rise in most industries. With the rapid development of IT technology, the world has entered a brand-new era of fully building intelligent robots. The supporting lithium batteries need to meet the integration requirements of multiple functions of the robot, such as its mechanical structure, control and drive system, perception system, and interaction system, to enhance the robot's movement ability in complex environments and improve its overall perception and decision-making capabilities.

According to the customer's requirements and specifications, design a robot intelligent battery pack that matches the main unit. Integrate the intelligent power meter with communication protocol, lithium battery and safety protection performance into your solution, which can achieve information sharing between the intelligent battery pack and the main unit, and ultimately realize a reasonable, efficient and safe battery management solution. Throughout the entire design process of the solution, the aim is to achieve the most perfect integration with the host, with ensuring the safety of the battery, battery pack and the entire system as the premise, and meeting the corresponding design regulations and certification regulations as the top priority. At the same time, to ensure the safety and reliability of lithium batteries, multiple layers of protection should be adopted inside the battery pack to prevent the lithium batteries from being damaged due to overcharging, overdischarging or short circuit.

1. UR18650FM lithium-ion cell /UR18650FM Li-ion cell (SANYO).
2. Battery pack specifications: 18650-4S4P-10400mAh-14.4V
3. Protection Board (PCM) : It is mainly a protection circuit designed for rechargeable battery packs (generally referring to lithium batteries). Due to the chemical properties of lithium batteries themselves, it needs to provide protection functions such as overcharge, overdischarge, short circuit, overcurrent, and over-temperature. To avoid dangers such as combustion and explosion caused by it.
4. Protection IC: The main protection function chip in the design scheme, which conducts real-time online monitoring of overcharge, overdischarge, overcurrent, short current and other functions of the battery cell. Enable the battery cells to operate within a safe, stable and efficient range.
5. Field-effect Transistor (MOSFET) : The MOSFET tube serves as a switch in the protection circuit, ensuring that the voltage across the load never rises or drops, thus guaranteeing voltage stability.
6. Power Management Control Chip (BQ40Z50-R1) : A fully functional power detector featuring an analog-to-digital converter (ADC) for measuring voltage and temperature, as well as an analog-to-digital converter for measuring current and charging sensing. The power meter has a microprocessor responsible for executing. The power meter can provide information such as the Remaining State of Capacity. The BQ40Z50-R1 product also provides the remaining Run Time to Empty. The host can query this information from the battery level meter at any time and notify the user of the battery information. The use of the electricity meter is very convenient. Let users always keep track of the battery power.
7. Battery pack packaging (PVC).

Main technical parameters (@ Initial battery temperature 25±5℃)

• Precise battery power detection: Utilizing an intelligent battery power detector IC to calculate the remaining battery power, with an accuracy of up to 15%.
• Multiple protection functions: overcharge, overdischarge, overcurrent, short circuit, over-temperature, etc.

The welcoming robot, intelligent robot and smart office robot realize functions such as security monitoring, vip identification, remote video and remote meeting in the office area, providing commercial-level mobile remote management and cloud intelligent analysis services for enterprises and stores, such as customer flow conversion rate analysis, customer flow branch line analysis, cash register loss prevention and intelligent image capture.