Capacitor assembly

A capacitor assembly comprising:

• at least one capacitor each having a first end and a second end spaced apart in a longitudinal direction, and a first terminal and a second terminal located at the first end of the capacitor, the first end being provided with a first surface, and the second end being provided with a second surface;
• a heat sink having a first cooling surface;
• and
• a connection system connecting the at least one capacitor heat conductively to the heat sink such that the second surface of each of the at least one capacitor is in heat conductive connection with the first cooling surface,
• wherein the connection system is in contact with the first surface of each of the at least one capacitor,
• wherein the connection system comprises at least one support element in contact with the first surface of each of the at least one capacitor, and a pressing system for pressing the at least one support element against the first surface of each of the at least one capacitor in order to keep the at least one capacitor in heat conductive connection with the first cooling surface,
• wherein each of the at least one capacitor has a cylindrical shape such that the longitudinal direction is parallel to a height of the cylindrical shape,
• wherein the capacitor assembly comprises a plurality of capacitors which are identical with each other and each have a capacitor diameter, and the support element in contact with the first surface of each of the plurality of capacitors, wherein a distance between adjacent capacitors in contact with the support element is less than or equal to 7% of the capacitor diameter,
• wherein the capacitor assembly comprises a plurality of support elements each of which is in contact with the first several capacitors, wherein the plurality of support elements is placed in an array such that a distance between adjacent capacitors in contact with adjacent support elements is less than or equal to 10% of the capacitor diameter;
• and
• wherein the pressing system comprises a screw between two adjacent support elements, the screw being located in a gap formed between four adjacent capacitors, wherein the screw presses the two adjacent support elements against the first surfaces of corresponding capacitors.

A capacitor assembly comprising:

• at least one capacitor each having a first end and a second end spaced apart in a longitudinal direction, and a first terminal and a second terminal located at the first end of the capacitor, the first end being provided with a first surface, and the second end being provided with a second surface;
• a heat sink having a first cooling surface;
• and
• a connection system connecting the at least one capacitor heat conductively to the heat sink such that the second surface of each of the at least one capacitor is in heat conductive connection with the first cooling surface,
• wherein the connection system is in contact with the first surface of each of the at least one capacitor,
• wherein the connection system comprises at least one support element in contact with the first surface of each of the at least one capacitor, and a pressing system for pressing the at least one support element against the first surface of each of the at least one capacitor in order to keep the at least one capacitor in heat conductive connection with the first cooling surface,
• wherein both the first terminal and the second terminal has a non-circular cross section, and the at least one support element comprises a positioning system for ensuring that the at least one capacitor is correctly positioned relative to the at least one support element, and
• wherein the positioning system comprises for each of the at least one capacitor a first terminal opening in which the first terminal is received, and a second terminal opening in which the second terminal is received.