Inner rotor brushless motor

摘要

An inner rotor brushless motor is miniaturized, flattened and made lighter without reducing motor performance. A rotor (R) and a stator (S) are enclosed inside a sealed case (i.e., a sealed space) assembled by covering an attachment base (3) with a cup-shaped bracket (1). A motor substrate (17) on which a motor driving circuit is formed is provided in a gap formed in an axial direction between (i) the rotor (R) and the stator (S) and (ii) a base portion (1b) inside a bracket opening (1a) of the bracket.