Patent ID: 8163994

Claim:
A fixing structure for an electrical junction box and a cassette, the fixing structure being adapted to fix the cassette on a side wall outer surface of the electrical junction box, the fixing structure comprising: a pair of locking portions provided on an outer surface of the cassette; a rib plate that extends in a vertical direction and projects downward adjacent to the locking portions to come into contact with the side wall outer surface of the electrical junction box; a pair of counterpart locking portions to be locked on the locking portions provided on the side wall outer surface of the electrical junction box; and an engaging stepped-portion provided on the side wall outer surface of the electrical junction box that receives a lower end of the rib plate, wherein when the locking portions and the counterpart locking portions are coupled to and locked on one another, the rib plate comes into contact with the side wall outer surface of the electrical junction box, and a lower end of the rib plate comes into contact with the engaging stepped-portion to restrict rotation of the cassette coupled to and locked on the electrical junction box; the locking portions are spaced away from each other laterally, and a single rib plate is disposed between the locking portions; the counterpart locking portions are provided on the side wall outer surface of the electrical junction box to be coupled to the locking portions on the cassette, respectively, and the engaging stepped-portion is provided on the side wall outer surface between the counterpart locking portions to receive the rib plate; and wherein line segments that interconnect center points of the locking portions and the rib plate define a triangle.