The present embodiments relate generally to cooling units for an ultrasound imaging apparatus, and related ultrasound systems. The ultrasound imaging systems may include an ultrasound imaging apparatus operable to acquire ultrasound image data； and a cooling unit configured to detachably couple to the ultrasound imaging apparatus. The cooling unit may be cordless and include an active cooling element for removing heat from the ultrasound imaging apparatus. The ultrasound imaging apparatus may have a sensor to determine when the cooling unit is attached. The cooling unit may have an identity interface, and the ultrasound imaging apparatus may use the identity interface to determine whether the cooling unit is compatible.
