Provided is a relay connector 100 for establishing connection between motors each having a pair of motor terminals provided to a back plate, and for supplying power supplied from external terminals to the respective motor terminals. The relay connector 100 includes: a motor connecting surface 120 having a first relay terminal 140 that connects to the motor terminals of each motor; an external connector connecting surface 130 that is continuous to the motor connecting surface 120 and has in its bonding surface a second relay terminal 150 that connects to L-shaped terminals 220; and a housing 110 having the motor connecting surface 120 and the external connector connecting surface 130 in its end surfaces. The first relay terminal 140 and the second relay terminal 150 are electrically connected with each other within the housing 110.