As the logistics and industrial material handling sectors pursue continuous operation efficiency, battery-swap compatible lithium-ion forklifts have gained wider application for their ability to cut down charging waiting time effectively. Different from conventional lithium-ion forklifts that support in-situ charging only, this type of equipment needs to meet targeted structural parameter requirements to ensure stable, safe and convenient battery replacement operation in daily use.

First, the reserved size of the battery compartment should keep consistent with the general size standard of swappable lithium batteries applied in the corresponding operation scenarios. The dimensional tolerance of the compartment inner wall should be controlled within a reasonable range, to avoid excessive gap that leads to battery shaking during high-intensity operation, or too small gap that causes difficulty in battery taking out and placing. The load-bearing strength of the compartment bottom plate should match the full weight of the matched lithium battery module, leaving enough safety margin to avoid deformation after long-term frequent picking and placing operations. The guide rail structure inside the compartment should be kept smooth without extra protruding obstacles, to reduce the friction resistance when the battery is pushed in and pulled out.

Second, the power connection interface of the equipment should meet the general positioning tolerance requirement of swappable batteries. The elastic contact structure of the power interface should have enough effective contact stroke, to ensure stable and reliable electrical connection even after thousands of times of battery swapping operations. The locking structure between the battery compartment and the battery module should have proper operation stroke, so that operators can finish unlocking and locking actions with small physical strength, no extra complex tools are required in the whole process. The reserved position of the buffer structure around the interface should leave enough space for position deviation correction when the battery is placed, to avoid hard collision that damages the electrical connection components.

Third, the whole vehicle’s gravity center matching parameters should be adjusted properly based on the fixed weight range of the swappable battery. The counterweight structure of the forklift should be adjusted correspondingly to ensure that the load center meets the safety operation standard under both full load and no-load conditions, avoiding rollover risks in daily material handling processes. The reserved operation space beside the battery compartment should be wider than the conventional model, to reserve enough operating space for operators or automatic swap equipment to finish battery pick-and-place actions. The outer protective structure around the battery compartment should have enough impact resistance performance, to prevent accidental collision in the working site from damaging the internal battery and connection components. All these structural parameter requirements are set to balance the operation safety, use convenience and service life of the equipment. Users can adjust specific parameters appropriately according to their actual operation scenarios, to give full play to the efficiency advantage of battery swap mode in long-hour continuous material handling scenes.