REACTOR, CONVERTER, AND POWER CONVERSION DEVICE

摘要

A reactor that includes a coil with a pair of coil elements connected to each other, a magnetic core with a pair of interior core portions disposed inside the coil elements and an exterior core portion which connects the interior core portions to form a closed magnetic path, and an insulator interposed between the coil and the magnetic core.

主权项

1. A reactor comprising:
a coil with a pair of coil elements connected to each other, a magnetic core with a pair of interior core portions disposed inside the coil elements and an exterior core portion which connects the interior core portions to form a closed magnetic path, and an insulator interposed between the coil and the magnetic core, wherein the reactor is provided with a sensor for measurement of a physical quantity during operation of the reactor, and a sensor holder which includes a member independent from the insulator and which holds the sensor, wherein each coil element of the pair of coil elements has a tubular body formed by spirally winding a wire and has an end surface shaped to have rounded corner portions with rounded corners, and the coil elements are disposed in parallel such that axes of the coil elements are disposed in parallel to each other, wherein the sensor holder is provided with an engaging portion which engages with the insulator to prevent the sensor holder form being detached from the insulator, and wherein the sensor is disposed, with the sensor holder which is engaged at the engaging portion with the insulator, in a trapezoidal space interposed between the rounded corner portions which are disposed to face each other in the coil elements.