Project Background

A certain new energy battery production enterprise uses 50 AGV robots (automatic guided vehicles) in the battery cell handling process, which need to achieve power supply and position positioning (encoding signal transmission) of the robots. The previously used power harness had problems with insufficient current carrying capacity (prone to heating during peak current) and weak anti-interference ability of the encoded harness signal, resulting in power interruption and positioning deviation (maximum deviation up to 5mm, affecting cell grasping accuracy) of the AGV robot. In severe cases, it caused cell damage, resulting in a monthly loss of about 100000 yuan. In 2023, the company will collaborate with Lianjie Technology to upgrade the power and coding harness system.

Product adaptation and solutions

Lianjie Technology provides the power harness and coding harness for the project, forming a related solution:

1. Customization of power harness: According to the power requirements of AGV robots (rated current 80A, peak current 120A), multiple copper core conductors (cross-sectional area 16mm ²) are used, combined with high-voltage (600V) insulation layer, which helps ensure stable power transmission and reduce heating problems; At the same time, flame-retardant sleeves are added to the outer layer of the wire harness to meet the fire safety requirements of the new energy workshop.

1. Encoding harness optimization: Adopting a shielded twisted pair structure (with a shielding layer coverage rate of 95%), it helps to resist electromagnetic interference generated by equipment such as frequency converters and motors in the workshop; The encoding signal transmission rate can reach 1Mbps, and the positioning accuracy can be controlled within ± 0.5mm, meeting the requirements of battery cell grasping.

1. Integrated integration: The power harness and coding harness are integrated through a dedicated fixed bracket to reduce the entanglement of the harness, facilitate later maintenance and repair, and shorten manual inspection time.

Project Results

After the project was implemented, various indicators showed improvement:

Operational stability: AGV robot power interruption faults have decreased from 8 times per month to 0 times, the positioning deviation of encoded signals is controlled within 0.5mm, and the battery cell damage rate has been reduced to 0;

Energy consumption: The conductivity efficiency of the power harness has been improved, and the daily electricity consumption of a single AGV robot has been reduced by 2.3 kWh. The average annual electricity cost savings for 50 robots are about 36000 yuan;

Collaboration Progress: The company will subsequently hand over the order for 100 newly produced AGV robot wiring harnesses to Lianjie Technology and sign a 3-year cooperation agreement.