Replacement PCB board for Icecream Machines

 

Internal Working Principle of the Ice Cream Machine

The ice cream machine operates using two primary mechanical systems: the refrigeration system and the mixing system. Each system is driven by an independent motor designed specifically for its function. One motor drives the compressor within the refrigeration unit, while the other drives the mixing mechanism.

The refrigeration system, powered by the compressor motor, is responsible for removing heat from the ice cream mixture. As the temperature decreases, the mixture begins to solidify. Simultaneously, the mixing system continuously agitates the mixture to ensure uniform cooling, prevent ice crystal formation, and maintain a smooth texture.

An important aspect of the machine’s operation is its method of detecting the consistency (thickness) of the ice cream. Instead of using a dedicated viscosity sensor, the control circuit monitors the current drawn by the mixer motor. As the mixture thickens, mechanical resistance against the mixer increases, which in turn increases the motor’s current consumption.

The user can adjust the desired thickness of the ice cream by setting a predefined current threshold within the control circuit. When the mixer motor current reaches this preset cutoff value, the system interprets this as the ice cream reaching the desired consistency. At this point, the machine stops the freezing cycle and indicates that the product is ready for dispensing.

This current-based control method provides a simple, reliable, and cost-effective way to determine product readiness without requiring complex sensing hardware.

Types of boards currently in production,

 Maximum 4A mixing current.

 Maximum 6A mixing current.

 Maximum 15A mixing current

Please comment if you interested and I can provide all technical information about above boards.