| 摘要 |
A self-cleaning milk frothing device has a frothing mechanism, a milk-suction conduit and a milk-discharge conduit to discharge the rest milk. The frothing mechanism has a steam conduit to generate negative pressure inside. The milk-suction conduit includes a first flexible tube inserted into the milk, a second flexible tube connected to the frothing mechanism and a three-way pipe connected to the first flexible tube and the second flexible tube. An electromagnetic valve to control one end of the three-way pipe to connect to or separate from the air, and a controller to control the on-off of the electromagnetic valve is further disposed. After frothing the milk, the controller controls the electromagnetic valve, connecting the three-way pipe to the air, the suction air is passing through the second flexible tube and the frothing mechanism and then going out of the milk-discharge conduit. |
