Device for foaming milk, beverage maker comprising said device, and method for foaming milk

摘要

The present invention relates to a device for frothing up a liquid, in particular cold and/or unheated milk, having a liquid supply line for supplying the liquid, an air supply line which opens into the liquid supply line for supplying air into the liquid, a discharge line which is configured downstream of the opening of the air supply line into the liquid supply line for discharging the mixture of liquid and air, a first conveying unit, in particular a pump, which is provided for conveying the liquid through the liquid supply line and/or the mixture through the discharge line and a mixing unit which is provided downstream of the opening in the discharge line, the mixing unit including at least one narrow place or being configured as narrow place of the discharge line.

主权项

1. A device for frothing up a liquid and for active introduction of air via an air supply line into the liquid, said device comprising:
a liquid supply line for supplying the liquid, the air supply line which opens into the liquid supply line for supplying the air into the liquid, a discharge line which is configured downstream of the opening of the air supply line into the liquid supply line for discharging the mixture of liquid and air, a first conveying unit, in particular a pump, which is provided for conveying the liquid through the liquid supply line and/or the mixture through the discharge line and a mixing unit which is provided downstream of the opening in the discharge line, the mixing unit including or being configured as at least one constriction of the discharge line; wherein the air supply line, the liquid supply line or the discharge line has a mixing region into which a steam supply line opens for supplying steam or a mixture of air and steam to the liquid or to the mixture of liquid and air; and wherein the mixing region is disposed upstream or downstream of the mixing unit or in the mixing unit and/or downstream of the first conveying unit, and/or in that active air can be introduced into the steam supply line, in order to produce the mixture of air and steam, the mixture being produced by a further, third conveying unit, in particular a pump, for conveying air, which is disposed in a further air supply line which opens into the steam supply line, and/or by a further compressed air container which is connected at the end of the further supply line, which is orientated away from the opening of such a further air supply line into the steam supply line, to said further air supply line.