Reactor

摘要

A small reactor capable of appropriately measuring the temperature of a coil is provided. The reactor includes a coil 2 including a pair of coil elements 2a and 2b and a magnetic core including a pair of inner core portions 31 disposed in the respective coil elements 2a and 2b and outer core portions that connect the inner core portions 31 to form a closed magnetic circuit. Each of the coil elements 2a and 2b has an end face shape having a rounded corner portion 21, which is a corner portion of a rectangle that is rounded. A temperature sensor 7 is disposed in a trapezoidal space between the rounded corner portions 21 of the coil elements 2a and 2b that face each other. The temperature sensor 7 is pressed so as to contact the rounded corner portions 21 by the sensor holder portion 54 provided on an insulator, and is capable of appropriately measuring the temperature of the coil 2. When the temperature sensor 7 is disposed in a region in which the inner core portions 31 are not disposed in the respective coil elements 2a and 2b, the coil elements 2a and 2b can be positioned near each other and the size of the reactor can be reduced.

主权项

1. A reactor comprising a coil including a pair of coil elements and a magnetic core including a pair of inner core portions disposed in the respective coil elements and outer core portions that connect the inner core portions to form a closed magnetic circuit,
wherein each of the coil elements is a tubular body formed by helically winding a wire and has an end face shape having a rounded corner portion, which is a corner portion that is rounded, the coil elements being arranged next to each other so that axes of the coil elements are parallel to each other, and wherein a temperature sensor is disposed in a trapezoidal space between the rounded corner portions of the coil elements that face each other and the temperature sensor is not disposed in a region between long linear portions of the coil elements that face each other.