Many regions around the world face long periods of high ambient temperature in summer, with exposed outdoor storage yards, port cargo handling areas and enclosed high-temperature warehouses often seeing sustained working environment temperatures above 40℃. For electric forklifts that run continuously for long hours in such scenarios, traditional thermal management solutions often fail to meet stable operation demands, leading to accelerated battery capacity attenuation, overheat protection triggers of drive motors and electrical controllers, and even abnormal changes in hydraulic oil viscosity that affect operation accuracy.

The first notable innovation in current targeted thermal management upgrades is the optimized closed-loop liquid cooling temperature control system for battery packs. Different from the traditional single air cooling solution that relies on ambient air flow for heat dissipation, this new system transmits constant temperature cooling medium to the surface of each battery cell through fully insulated circulation pipelines, which can maintain the working temperature of the whole battery pack within the reasonable optimal range of 25℃ to 35℃ even when the ambient temperature stays at 45℃, and keep the temperature difference between all cells at a low level, effectively slowing down the attenuation rate of battery cycle life.

The second innovation is the application of the integrated intelligent thermal management architecture. This architecture breaks the original independent heat dissipation design of each component of the whole vehicle, arranges high-precision temperature sensors on the surface of the drive motor, electric controller, hydraulic power unit and battery pack at the same time, and dynamically adjusts the output power of the heat dissipation unit according to real-time collected temperature data, which avoids the unnecessary energy consumption caused by the long-term full-load operation of the heat dissipation system in the past, and can properly extend the single-shift operation duration of the electric forklift on the premise of ensuring full heat dissipation effect.

Besides active heat dissipation optimization, the passive heat dissipation and temperature control design has also been significantly improved. The new generation of electric forklifts for hot climate use add high-efficiency thermal insulation coating on the outer surface of the battery compartment and electrical compartment, which can block most of the extra heat brought by direct sunlight in outdoor scenarios, reduce the peak temperature of internal components, and further reduce the working load of the active cooling system. Actual operation data shows that electric forklifts equipped with the above new thermal management technologies can effectively reduce the unplanned shutdown probability caused by overheating in high-temperature working scenarios, reduce daily equipment maintenance costs, and provide more reliable support for the stable operation of material handling links in hot regions.