Abstract
Reporters obtained the following quote from the background information supplied by the inventors:“The commercially-available pool electric robots generally ado pt a pre-filtration design due to the limitationsof the impeller. Specifically, the filtering device is disposed near the suction port. After the solidwaste i s filtered out, the clean water passes through the impeller, and in this case, t he suction effect islimited. The debris may not be sucked into the pool robot, which leads to poor sewage suction effect.”