Capacitor module

A capacitor module comprising:

• a first capacitor having a wound body of a dielectric film and including a first electrode, a second electrode opposed to the first electrode, and a first side surface connecting the first electrode and the second electrode and having a pair of flat portions opposed to each other and a pair of curved portions connecting the pair of flat portions;
• a second capacitor having a wound body of a dielectric film and including a third electrode, a fourth electrode opposed to the third electrode, and a second side surface connecting the third electrode and the fourth electrode and having a pair of flat portions opposed to each other and a pair of curved portions connecting the pair of flat portions;
• a first bus bar having a support surface supporting the first side surface of the first capacitor and the second side surface of the second capacitor such that the first side surface of the first capacitor and the second side surface of the second capacitor face each other in a first direction along the support surface of the first bus bar and define a space separating one of the pair of curved portions of the first side surface and one of the pair of curved portions of the second side surface in the first direction between the first side surface of the first capacitor and the second side surface of the second capacitor, the first bus bar being electrically connected to the first electrode of the first capacitor and the third electrode of the second capacitor;
• a second bus bar electrically connected to the second electrode of the first capacitor and the fourth electrode of the second capacitor;
• and
• a sensor including a detector that detects an abnormality regarding the capacitor module, the detector being arranged in the space separating the one of the pair of curved portions of the first side surface and the one of the pair of curved portions of the second side surface,
• wherein the sensor includes an elongated portion provided with the detector at a tip end of the elongated portion, and the elongated portion is arranged in the space separating the one of the pair of curved portions of the first side surface and the one of the pair of curved portions of the second side surface,
• wherein the first bus bar includes a positioning portion that positions the elongated portion onto the support surface, and
• wherein the positioning portion includes a first protrusion protruding from the support surface, the first protrusion defining a through hole through which the elongated portion extends.