Heating block for heating water

A heating block for heating a liquid medium, comprising:

• a heating block body with a cavity for receiving or guiding the medium;
• an electric heating element arranged in the cavity, and configured to heat the medium by means of electric current passing through the heating element;
• a semiconductor switch configured to control the electric current flowing through the heating element so as to control a heating power of the heating element;
• a closure piece configured to close an opening in the heating block body to the cavity element;
• a heating coil fastening pin which is integrated in the closure piece, and which comprises:
• a connection means, at a side facing the medium, configured to electrically connect the heating element;
• and
• a receptacle, at a side remote of the medium, configured to receive a fastening means which fastens the semiconductor switch to the heating coil fastening pin,
• wherein the semiconductor switch is electrically and thermally conductively connected to the closure piece by a first connection terminal, such that an electrical connection of the first connection terminal to the heating element is carried out via the closure piece and a thermal connection of the first connection terminal to the medium is carried out via the closure piece;
• and
• wherein the semiconductor switch is directly connected to a control board by a second connection terminal so that the semiconductor switch is spatially arranged and mechanically connected directly between the control board and the connection piece.

A heating apparatus comprising:

• a semiconductor switch configured to control the current flowing through a heating element so as to control a heating power of the heating element;
• a closure piece configured to close an opening in a heating block body;
• and
• a control board;
• and
• a heating coil fastening pin which electrically connects the semiconductor switch to the heating element,
• wherein the semiconductor switch is electrically and thermally conductively connected to the closure piece by a first connection terminal, such that an electrical connection of the first connection terminal to the heating element is carried out via the closure piece and a thermal connection of the first connection terminal to a medium to be heated is carried out via the closure piece;
• wherein the semiconductor switch is directly connected to the control board by a second connection terminal so that the semiconductor switch is spatially arranged and mechanically connected directly between the control board and the connection piece,
• wherein the heating coil fastening pin thermally connects the semiconductor switch and the medium so that the semiconductor switch is cooled through the medium via the heating coil fastening pin.