A power generation system, a power converter, and a switch assembly. The plurality of positive input ports and the plurality of negative input ports are configured to electrically connect the switch assembly to an external direct current source, and the switch assembly is electrically connected to the power device through a trace on the circuit mainboard. The switch assembly includes a plurality of first pins and a plurality of second pins, the plurality of first pins are located in a first region, the plurality of second pins are located in a second region, the first region and the second region are stacked in a first direction. The controller is configured to send a switch-off signal to the switch assembly when the external direct current source or the power device is faulty. The power converter provided can resolve a problem of a short circuit occurring during condensation.

A snap-action switch box includes a base, a loading spindle, an indexing element associated rotatably with both, and a helical torsion spring which is mounted on the indexing element so that it can be loaded by a rotation of the loading spindle about a central axis. The spring has two stems which protrude from respective end turns of the spring and the indexing element includes at least two abutments which protrude in an eccentric position and in opposite directions and are substantially parallel to the central rotation axis. The stems of the spring are adapted to abut respectively against the abutments.

A snap-action switch box includes a base, a loading spindle, an indexing element associated rotatably with both, and a helical torsion spring which is mounted on the indexing element so that it can be loaded by a rotation of the loading spindle about a central axis. The spring has two stems which protrude from respective end turns of the spring and the indexing element includes at least two abutments which protrude in an eccentric position and in opposite directions and are substantially parallel to the central rotation axis. The stems of the spring are adapted to abut respectively against the abutments.

An isolating switch body, an isolating switch, and a power distribution system are provided. The isolating switch body includes body modules, where each body module includes a plurality of layers of switch units which are stacked, the plurality of layers of switch units are connected through respective body rotating shafts, and a plurality of groups of body modules are spliced to form the isolating switch body; the body rotating shafts of the switch units are linked with an operating mechanism through a transmission mechanism in a first direction perpendicular to a stacking direction. The handle shaft is rotated to drive the operating mechanism to act, and then the body modules are driven through the transmission mechanism to achieve synchronous opening and closing.

An isolating switch body, an isolating switch, and a power distribution system are provided. The isolating switch body includes body modules, where each body module includes a plurality of layers of switch units which are stacked, the plurality of layers of switch units are connected through respective body rotating shafts, and a plurality of groups of body modules are spliced to form the isolating switch body; the body rotating shafts of the switch units are linked with an operating mechanism through a transmission mechanism in a first direction perpendicular to a stacking direction. The handle shaft is rotated to drive the operating mechanism to act, and then the body modules are driven through the transmission mechanism to achieve synchronous opening and closing.